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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="C04B" definition-exists="true" date-revised="2022-02-01" status="published"><classification-symbol>C04B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>LIME, MAGNESIA</text></title-part><title-part><text>SLAG</text></title-part><title-part><text>CEMENTS</text></title-part><title-part><text>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS</text></title-part><title-part><text>ARTIFICIAL STONE </text><CPC-specific-text><reference><text>roofing granules <class-ref scheme="cpc">E04D7/005</class-ref></text></reference></CPC-specific-text></title-part><title-part><text>CERAMICS </text><reference><text>devitrified glass-ceramics <class-ref scheme="cpc">C03C10/00</class-ref></text></reference></title-part><title-part><text>REFRACTORIES</text></title-part><title-part><text>TREATMENT OF NATURAL STONE</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subclass, the following terms or expressions are used with the meanings indicated: <subnote type="bullet"><note-paragraph>&quot;fillers&quot; includes pigments, aggregates and fibrous reinforcing materials; </note-paragraph><note-paragraph>&quot;active ingredients&quot; includes processing aids or property improvers, e.g. grinding aids used after the burning process or used in the absence of a burning process; </note-paragraph><note-paragraph>&quot;mortars&quot;, &quot;concrete&quot; and &quot;artificial stone&quot; are to be considered as a single group of materials, and therefore, in the absence of an indication to the contrary, they include mortar, concrete and other cementitious compositions. </note-paragraph></subnote></note-paragraph><note-paragraph> In groups <class-ref scheme="cpc">C04B7/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B32/00</class-ref>, in the absence of an indication to the contrary, classification is made in the last appropriate place. </note-paragraph><note-paragraph> A composition classified in groups <class-ref scheme="cpc">C04B26/00</class-ref> or <class-ref scheme="cpc">C04B28/00</class-ref> is also classified in groups <class-ref scheme="cpc">C04B14/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B24/00</class-ref> if a filler or active ingredient is of interest. </note-paragraph><note-paragraph> In groups <class-ref scheme="cpc">C04B2/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B32/00</class-ref> and <class-ref scheme="cpc">C04B38/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B41/00</class-ref> it is desirable to classify the individual constituents of the mixtures, or other aspects relating to the mixtures or constituents, using Combination Sets with symbols chosen from groups <class-ref scheme="cpc">C04B2/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B41/00</class-ref>. </note-paragraph><note-paragraph> In groups <class-ref scheme="cpc">C04B2/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B32/00</class-ref> and <class-ref scheme="cpc">C04B38/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B41/00</class-ref> it is desirable to classify the function of the individual constituents of the mixtures, or other aspects relating to the properties or uses of the mixtures or products obtained, using Combination Sets with symbols chosen from groups <class-ref scheme="cpc">C04B2103/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2111/00</class-ref>. </note-paragraph><note-paragraph> Groups <class-ref scheme="cpc">C04B20/123</class-ref> and <class-ref scheme="cpc">C04B20/126</class-ref> are used for indexing purposes only of documents classified in <class-ref scheme="cpc">C04B20/12</class-ref></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">C04B5/02</class
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C04B2/00" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lime</text></title-part><title-part><text>Magnesia</text></title-part><title-part><text>Slag</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B2/00" definition-exists="true" ipc-concordant="C04B2/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lime, magnesia or dolomite </text><reference><text>hydraulic lime cements <class-ref scheme="cpc">C04B7/34</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B2/005" definition-exists="false" ipc-concordant="C04B2/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained from an industrial by-product</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B2/02" definition-exists="true" ipc-concordant="C04B2/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lime </text><CPC-specific-text><reference><text>obtaining Ca(OH)<sub>2</sub> otherwise than by simple slaking of quick lime <class-ref scheme="cpc">C01F11/02</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B2/04" definition-exists="true" ipc-concordant="C04B2/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Slaking </text><CPC-specific-text><reference><text>simultaneous dehydrating of gypsum and slaking of lime <class-ref scheme="cpc">C04B11/022</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B2/045" definition-exists="false" ipc-concordant="C04B2/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>After-treatment of slaked lime</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B2/06" definition-exists="false" ipc-concordant="C04B2/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B2/06</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>with addition of substances, e.g. hydrophobic agents </text><CPC-specific-text><text>; Slaking in the presence of other compounds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B2/063" definition-exists="true" ipc-concordant="C04B2/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slaking of impure quick lime, e.g. contained in fly ash</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B2/066" definition-exists="false" ipc-concordant="C04B2/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making use of the hydration reaction, e.g. the reaction heat for dehydrating gypsum; Chemical drying by using unslaked lime</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B2/08" definition-exists="true" ipc-concordant="C04B2/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices therefor</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B2/10" definition-exists="false" ipc-concordant="C04B2/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preheating, burning calcining or cooling </text><reference><text>decarbonation during burning of cement raw materials <class-ref scheme="cpc">C04B7/43</class-ref>; </text><CPC-specific-text><text>obtaining CaO or MgO otherwise than by thermal decomposition of the corresponding carbonates <class-ref scheme="cpc">C01F11/02</class-ref>, <class-ref scheme="cpc">C01F5/02</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B2/102" definition-exists="false" ipc-concordant="C04B2/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of magnesia, e.g. dead burning</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B2/104" definition-exists="false" ipc-concordant="C04B2/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ingredients added before or during the burning process</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B2/106" definition-exists="false" ipc-concordant="C04B2/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in fluidised bed furnaces</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B2/108" definition-exists="false" ipc-concordant="C04B2/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Treatment or selection of the fuel therefor</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B2/12" definition-exists="true" ipc-concordant="C04B2/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in shaft or vertical furnaces </text><reference><text>shaft or vertical furnaces in general <class-ref scheme="cpc">F27B1/00</class-ref></text></reference></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B5/00" definition-exists="true" ipc-concordant="C04B5/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Treatment of </text><CPC-specific-text><text>metallurgical</text></CPC-specific-text><text> slag </text><reference><text>manufacture of slag wool <class-ref scheme="cpc">C03B</class-ref>; in, or for, the production of metals <class-ref scheme="cpc">C21B</class-ref>, <class-ref scheme="cpc">C22B</class-ref></text></reference></title-part><title-part><text>Artificial stone from molten </text><CPC-specific-text><text>metallurgical</text></CPC-specific-text><text> slag </text><reference><text>mechanical aspects <class-ref scheme="cpc">B28B1/54</class-ref> </text><CPC-specific-text><text>other cast stone <class-ref scheme="cpc">C04B32/005</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B5/06" definition-exists="false" ipc-concordant="C04B5/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ingredients, other than water, added to the molten slag </text><CPC-specific-text><text>or to the granulating medium or before remelting</text></CPC-specific-text></title-part><title-part><text>Treatment with gases or gas generating compounds, e.g. to obtain porous slag</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B5/065" definition-exists="false" ipc-concordant="C04B5/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B5/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Porous slag</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C04B7/00" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B7/00" definition-exists="true" ipc-concordant="C04B7/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydraulic cements </text><reference><text>calcium sulfate cements <class-ref scheme="cpc">C04B11/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/003" definition-exists="false" ipc-concordant="C04B7/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Barium or strontium cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/006" definition-exists="false" ipc-concordant="C04B7/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cement-clinker used in the unground state in mortar - or concrete compositions</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/02" definition-exists="true" ipc-concordant="C04B7/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Portland cement</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/04" definition-exists="true" ipc-concordant="C04B7/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/04</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>using raw materials containing gypsum </text><CPC-specific-text><text>, i.e. processes of the Mueller-Kuehne type</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/06" definition-exists="true" ipc-concordant="C04B7/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using alkaline raw materials </text><reference><text><class-ref scheme="cpc">C04B7/60</class-ref> takes precedence</text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/12" definition-exists="true" ipc-concordant="C04B7/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C04B7/12</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Natural pozzuolanas</text></title-part><title-part><text>Natural pozzuolana cements</text></title-part><title-part><CPC-specific-text><text>Artificial pozzuolanas or artificial pozzuolana cements other than those obtained from waste or combustion residues, e.g. burned clay; Treating inorganic materials to improve their pozzuolanic characteristics </text><reference><text>cements containing slag <class-ref scheme="cpc">C04B7/14</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/13" definition-exists="false" ipc-concordant="C04B7/13" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/13</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mixtures thereof with inorganic cementitious materials, e.g. Portland cements</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/14" definition-exists="true" ipc-concordant="C04B7/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cements containing slag </text><reference><text>slags from waste incineration <class-ref scheme="cpc">C04B7/28</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/147" definition-exists="true" ipc-concordant="C04B7/147" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metallurgical slag</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/153" definition-exists="true" ipc-concordant="C04B7/153" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/153</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mixtures thereof with other inorganic cementitious materials or other activators</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/1535" definition-exists="true" ipc-concordant="C04B7/153" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/1535</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with alkali metal containing activators, e.g. sodium hydroxide or waterglass</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/17" definition-exists="true" ipc-concordant="C04B7/17" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/17</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with calcium oxide containing activators </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C04B7/1535</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/19" definition-exists="true" ipc-concordant="C04B7/19" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/19</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Portland cements</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/21" definition-exists="true" ipc-concordant="C04B7/21" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with calcium sulfate containing activators </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C04B7/1535</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/22" definition-exists="false" ipc-concordant="C04B7/22" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/22</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Iron ore cements </text><CPC-specific-text><text>; Iron rich cements, e.g. Ferrari cements, K&#252;hl cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/24" definition-exists="true" ipc-concordant="C04B7/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cements from oil shales, residues or waste other than slag</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/243" definition-exists="true" ipc-concordant="C04B7/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/243</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mixtures thereof with activators or composition-correcting additives, e.g. mixtures of fly ash and alkali activators</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/246" definition-exists="false" ipc-concordant="C04B7/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from waste building materials, e.g. waste asbestos-cement products, demolition waste</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/26" definition-exists="true" ipc-concordant="C04B7/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/26</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>from raw materials containing flue dust </text><CPC-specific-text><text>, i.e. fly ash </text><reference><text><class-ref scheme="cpc">C04B7/243</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/28" definition-exists="true" ipc-concordant="C04B7/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from combustion residues, </text><CPC-specific-text><text>e.g. ashes or slags from waste incineration</text></CPC-specific-text><reference><CPC-specific-text><text><class-ref scheme="cpc">C04B7/243</class-ref></text></CPC-specific-text><text> , <class-ref scheme="cpc">C04B7/26</class-ref> take precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/30" definition-exists="true" ipc-concordant="C04B7/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/30</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>from oil shale</text></title-part><title-part><text>from oil shale residues </text><CPC-specific-text><text>; from lignite processing, e.g. using certain lignite fractions</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/32" definition-exists="true" ipc-concordant="C04B7/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminous cements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/323" definition-exists="true" ipc-concordant="C04B7/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Calcium aluminosulfate cements, e.g. cements hydrating into ettringite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/326" definition-exists="false" ipc-concordant="C04B7/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/326</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Calcium aluminohalide cements, e.g. based on 11CaO.7Al2O3.CaX2, where X is Cl or F</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/34" definition-exists="true" ipc-concordant="C04B7/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/34</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Hydraulic lime cements</text></title-part><title-part><text>Roman cements </text><CPC-specific-text><text>; natural cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/345" definition-exists="false" ipc-concordant="C04B7/345" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B7/345</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Hydraulic cements not provided for in one of the groups <class-ref scheme="cpc">C04B7/02</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B7/34</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/3453" definition-exists="false" ipc-concordant="C04B7/345" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/3453</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Belite cements, e.g. self-disintegrating cements based on dicalciumsilicate</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/3456" definition-exists="false" ipc-concordant="C04B7/345" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/3456</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alinite cements, e.g. &quot;Nudelman&quot;-type cements, bromo-alinite cements, fluoro-alinite cements</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B7/36" definition-exists="false" ipc-concordant="C04B7/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manufacture of hydraulic cements in general</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/361" definition-exists="true" ipc-concordant="C04B7/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/361</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Condition or time responsive control in hydraulic cement manufacturing processes </text><reference><text>controlling or regulating in general <class-ref scheme="cpc">G05</class-ref>; <class-ref scheme="cpc">F27B7/42</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/362" definition-exists="false" ipc-concordant="C04B7/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/362</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for raw materials handling, e.g. during the grinding or mixing step</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/364" definition-exists="true" ipc-concordant="C04B7/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/364</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Avoiding environmental pollution during cement-manufacturing</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/365" definition-exists="false" ipc-concordant="C04B7/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by extracting part of the material from the process flow and returning it into the process after a separate treatment, e.g. in a separate retention unit under specific conditions</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/367" definition-exists="false" ipc-concordant="C04B7/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/367</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Avoiding or minimising carbon dioxide emissions</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/368" definition-exists="false" ipc-concordant="C04B7/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/368</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Obtaining spherical cement particles</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/38" definition-exists="false" ipc-concordant="C04B7/38" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/38</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Preparing or treating the raw materials individually or as batches </text><CPC-specific-text><text>, e.g. mixing with fuel; </text><reference><text><class-ref scheme="cpc">C04B7/362</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/40" definition-exists="false" ipc-concordant="C04B7/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dehydrating</text></title-part><title-part><text>Forming, e.g. granulating </text><reference><text>apparatus for granulating <class-ref scheme="cpc">B01J2/00</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/42" definition-exists="true" ipc-concordant="C04B7/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Active ingredients added before, or during, the burning process </text><reference><text>after the burning process <class-ref scheme="cpc">C04B22/00</class-ref>, <class-ref scheme="cpc">C04B24/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/421" definition-exists="false" ipc-concordant="C04B7/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/421</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Inorganic materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/422" definition-exists="false" ipc-concordant="C04B7/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/422</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Elements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/424" definition-exists="false" ipc-concordant="C04B7/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/424</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oxides, Hydroxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/425" definition-exists="true" ipc-concordant="C04B7/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/425</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Acids or salts thereof</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/427" definition-exists="false" ipc-concordant="C04B7/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/427</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/428" definition-exists="false" ipc-concordant="C04B7/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/428</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organic materials</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/43" definition-exists="true" ipc-concordant="C04B7/43" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/43</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat treatment, e.g. precalcining, burning, melting</text></title-part><title-part><text>Cooling </text><CPC-specific-text><reference><text>aspects only relating to the installation <class-ref scheme="cpc">F27B</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/432" definition-exists="true" ipc-concordant="C04B7/43" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/432</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preheating without addition of fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/434" definition-exists="true" ipc-concordant="C04B7/43" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/434</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preheating with addition of fuel, e.g. calcining</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/436" definition-exists="false" ipc-concordant="C04B7/43" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/436</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Special arrangements for treating part or all of the cement kiln dust</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/438" definition-exists="false" ipc-concordant="C04B7/43" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/438</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Evacuating at least part of the heat treated material before the final burning or melting step, the evacuated material being used as a cement as such</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/44" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Burning</text></title-part><title-part><text>Melting</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/4407" definition-exists="true" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4407</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Treatment or selection of the fuel therefor, e.g. use of hazardous waste as secondary fuel </text><reference><text>fuels in general <class-ref scheme="cpc">C10L</class-ref></text></reference><text>; Use of particular energy sources, e.g. waste hot gases from other processes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/4415" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4415</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste hot gases</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/4423" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4423</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste or refuse used as fuel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B7/443" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/443</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tyres, e.g. shredded</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/4438" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4438</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fuel being introduced directly into the rotary kiln</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/4446" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4446</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fuel being treated in a separate gasifying or decomposing chamber, e.g. a separate combustion chamber</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/4453" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4453</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using plasmas or radiations</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/4461" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4461</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Grate sintering</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/4469" definition-exists="true" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4469</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in shaft or vertical kilns</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/4476" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Selection of the kiln atmosphere</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/4484" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4484</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-electric melting</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/4492" definition-exists="false" ipc-concordant="C04B7/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/4492</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Inhibiting the formation of or eliminating incrustations in the cement kiln </text><reference><text>removing incrustations from rotary-drum furnaces <class-ref scheme="cpc">F27B7/2075</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/45" definition-exists="true" ipc-concordant="C04B7/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/45</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>in fluidised beds </text><CPC-specific-text><text>, e.g. spouted beds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/46" definition-exists="true" ipc-concordant="C04B7/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>electric</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/47" definition-exists="false" ipc-concordant="C04B7/47" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/47</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Cooling </text><CPC-specific-text><text>; Waste heat management</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/475" definition-exists="false" ipc-concordant="C04B7/47" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/475</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using the waste heat, e.g. of the cooled clinker, in an other way than by simple heat exchange in the cement production line, e.g. for generating steam</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/48" definition-exists="true" ipc-concordant="C04B7/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Clinker treatment </text><reference><text><class-ref scheme="cpc">C04B7/47</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/51" definition-exists="true" ipc-concordant="C04B7/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/51</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydrating</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B7/52" definition-exists="true" ipc-concordant="C04B7/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/52</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Grinding </text><CPC-specific-text><text>; After-treatment of ground cement</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/522" definition-exists="true" ipc-concordant="C04B7/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/522</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>After-treatment of ground cement </text><reference><text><class-ref scheme="cpc">C04B7/368</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B7/525" definition-exists="false" ipc-concordant="C04B7/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/525</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Briquetting</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B7/527" definition-exists="true" ipc-concordant="C04B7/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B7/527</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B7/60" definition-exists="true" ipc-concordant="C04B7/60" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B7/60</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Methods for eliminating alkali metals or compounds thereof </text><CPC-specific-text><text>, e.g. from the raw materials or during the burning process; methods for eliminating other harmful components </text><reference><text>avoiding environmental pollution <class-ref scheme="cpc">C04B7/364</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B9/00" definition-exists="true" ipc-concordant="C04B9/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium cements or similar cements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B9/02" definition-exists="false" ipc-concordant="C04B9/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium cements containing chlorides, e.g. Sorel cement</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B9/04" definition-exists="false" ipc-concordant="C04B9/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B9/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium cements containing sulfates, nitrates, phosphates or fluorides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B9/06" definition-exists="false" ipc-concordant="C04B9/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cements containing metal compounds other than magnesium compounds, e.g. compounds of zinc or lead</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B9/11" definition-exists="false" ipc-concordant="C04B9/11" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B9/11</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mixtures thereof with other inorganic cementitious materials</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B9/12" definition-exists="false" ipc-concordant="C04B9/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B9/12</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>with hydraulic cements, e.g. Portland cements</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B9/20" definition-exists="true" ipc-concordant="C04B9/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B9/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manufacture, e.g. preparing the batches </text><reference><text>preheating, burning, calcining or cooling lime stone, magnesite or dolomite <class-ref scheme="cpc">C04B2/10</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B11/00" definition-exists="true" ipc-concordant="C04B11/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Calcium sulfate cements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B11/002" definition-exists="false" ipc-concordant="C04B11/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mixtures of different CaSO<sub>4</sub>-modifications, e.g. plaster of Paris and anhydrite, used as cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B11/005" definition-exists="false" ipc-concordant="C04B11/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preparing or treating the raw materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B11/007" definition-exists="false" ipc-concordant="C04B11/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>After-treatment of the dehydration products, e.g. aging, stabilisation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B11/02" definition-exists="true" ipc-concordant="C04B11/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Methods and apparatus for</text></CPC-specific-text><text> dehydrating gypsum </text><CPC-specific-text><reference><text>for other purposes than cement manufacture <class-ref scheme="cpc">C01F11/466</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B11/022" definition-exists="false" ipc-concordant="C04B11/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Simultaneous dehydrating of gypsum and slaking of lime</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B11/024" definition-exists="false" ipc-concordant="C04B11/024" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ingredients added before, or during, the calcining process, e.g. calcination modifiers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B11/028" definition-exists="false" ipc-concordant="C04B11/028" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices therefor </text><CPC-specific-text><text>characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B11/0281" definition-exists="false" ipc-concordant="C04B11/028" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/0281</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Kettles; Marmites; Autoclaves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B11/0282" definition-exists="false" ipc-concordant="C04B11/028" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/0282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Autoclaves, e.g. using chariots</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B11/0283" definition-exists="false" ipc-concordant="C04B11/028" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/0283</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluidised beds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B11/0285" definition-exists="false" ipc-concordant="C04B11/028" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/0285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rotary kilns</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B11/0286" definition-exists="false" ipc-concordant="C04B11/028" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/0286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Suspension heaters for flash calcining, e.g. cyclones</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B11/0287" definition-exists="false" ipc-concordant="C04B11/028" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/0287</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multi-storey horizontal furnaces</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B11/0288" definition-exists="false" ipc-concordant="C04B11/028" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/0288</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Grates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B11/032" definition-exists="true" ipc-concordant="C04B11/032" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B11/032</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>for the wet process, e.g. dehydrating in solution or under saturated vapour conditions, </text><CPC-specific-text><text>i.e. to obtain alpha-hemihydrate </text><reference><text><class-ref scheme="cpc">C04B11/0281</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B11/0288</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B11/036" definition-exists="true" ipc-concordant="C04B11/036" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B11/036</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln </text><CPC-specific-text><text>, i.e. to obtain beta-hemihydrate </text><reference><text><class-ref scheme="cpc">C04B11/0281</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B11/0288</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B11/05" definition-exists="false" ipc-concordant="C04B11/05" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtaining anhydrite, </text><CPC-specific-text><text>e.g. Keene&apos;s cement</text></CPC-specific-text><reference><text><class-ref scheme="cpc">C04B11/028</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B11/06" definition-exists="false" ipc-concordant="C04B11/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>starting from anhydrite</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B11/26" definition-exists="false" ipc-concordant="C04B11/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>strating from chemical gypsum</text></CPC-specific-text></title-part><title-part><text>starting from phosphogypsum or from waste, e.g. purification products of smoke </text><reference><text><class-ref scheme="cpc">C04B11/02</class-ref> takes precedence; chemical purification of smoke, fumes or exhaust gases <class-ref scheme="cpc">B01D53/00</class-ref> </text><CPC-specific-text><text>purification of gypsum <class-ref scheme="cpc">C01F11/46</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B11/262" definition-exists="false" ipc-concordant="C04B11/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/262</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>waste gypsum other than phosphogypsum</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B11/264" definition-exists="false" ipc-concordant="C04B11/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/264</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gypsum from the desulfurisation of flue gases</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B11/266" definition-exists="false" ipc-concordant="C04B11/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Chemical gypsum</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B11/268" definition-exists="false" ipc-concordant="C04B11/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/268</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>pelletizing of the material before starting the manufacture</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B11/28" definition-exists="false" ipc-concordant="C04B11/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mixtures thereof with other inorganic cementitious materials </text><reference><text><class-ref scheme="cpc">C04B7/04</class-ref>, <class-ref scheme="cpc">C04B7/153</class-ref> take precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B11/30" definition-exists="false" ipc-concordant="C04B11/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B11/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydraulic cements, e.g. Portland cements</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B12/00" definition-exists="true" ipc-concordant="C04B12/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2021-05-01" status="published"><classification-symbol>C04B12/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Cements not provided for in groups <class-ref scheme="cpc">C04B7/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B11/00</class-ref></text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">C04B12/00</class-ref> is impacted by reclassification into group <class-ref scheme="cpc">C04B12/007</class-ref>. <br/>Groups <class-ref scheme="cpc">C04B12/00</class-ref> and <class-ref scheme="cpc">C04B12/007</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B12/005" definition-exists="false" ipc-concordant="C04B12/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B12/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B12/007" definition-exists="false" ipc-concordant="C04B12/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2021-05-01" status="published"><classification-symbol>C04B12/007</classification-symbol><class-title date-revised="2021-05-01"><title-part><CPC-specific-text><text>Non-hydraulic cements containing low lime calcium silicate phases, e.g. wollastonite, pseudowollastonite, rankinite or cements curable in the presence of CO<sub>2</sub></text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">C04B12/007</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">C04B12/00</class-ref>.<br/>Groups <class-ref scheme="cpc">C04B12/00</class-ref> and <class-ref scheme="cpc">C04B12/007</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B12/02" definition-exists="true" ipc-concordant="C04B12/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B12/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Phosphate cements </text><reference><text>in, or for, the manufacture of ceramics <class-ref scheme="cpc">C04B33/00</class-ref>, <class-ref scheme="cpc">C04B35/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B12/022" definition-exists="false" ipc-concordant="C04B12/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B12/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Al-phosphates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B12/025" definition-exists="false" ipc-concordant="C04B12/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B12/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphates of ammonium or of the alkali or alkaline earth metals</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B12/027" definition-exists="false" ipc-concordant="C04B12/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B12/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>mixtures thereof with other inorganic cementitious materials</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B12/04" definition-exists="false" ipc-concordant="C04B12/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B12/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkali metal or ammonium silicate cements </text><CPC-specific-text><text>Alkyl silicate cements; Silica sol cements; Soluble silicate cements</text></CPC-specific-text><reference><text>alkali metal silicates <u>per se</u>, their preparation <class-ref scheme="cpc">C01B33/32</class-ref>; ammonium silicates <u>per se</u>, their preparation <class-ref scheme="cpc">C01C1/00</class-ref></text></reference></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C04B14/00" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of materials as fillers </text><reference><text>ceramics <class-ref scheme="cpc">C04B33/00</class-ref>, <class-ref scheme="cpc">C04B35/00</class-ref>; reinforcing elements for building materials <class-ref scheme="cpc">E04C5/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B14/00" definition-exists="true" ipc-concordant="C04B14/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone</text></title-part><title-part><text>Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone </text><reference><text>expanding or defibrillating materials <class-ref scheme="cpc">C04B20/00</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Fillers with a well-defined shape other than granular are considered to be reinforcing elements and thus are classified in <class-ref scheme="cpc">E04C5/00</class-ref>. However, if they are only characterised by their composition, classification is made in <class-ref scheme="cpc">C04B</class-ref> only </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B14/005" definition-exists="false" ipc-concordant="C04B14/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Inorganic fillers with a shape other than granular or fibrous </text><reference><text>carbon nanotubes <class-ref scheme="cpc">C04B14/026</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B14/02" definition-exists="false" ipc-concordant="C04B14/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B14/02</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Granular materials </text><CPC-specific-text><text>, e.g. microballoons</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B14/022" definition-exists="true" ipc-concordant="C04B14/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbon</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/024" definition-exists="false" ipc-concordant="C04B14/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Graphite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/026" definition-exists="false" ipc-concordant="C04B14/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of particular shape, e.g. nanotubes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/028" definition-exists="false" ipc-concordant="C04B14/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbon aerogels</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B14/04" definition-exists="true" ipc-concordant="C04B14/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silica-rich materials</text></title-part><title-part><text>Silicates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/041" definition-exists="false" ipc-concordant="C04B14/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aluminium silicates other than clay</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/042" definition-exists="true" ipc-concordant="C04B14/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Magnesium silicates, e.g. talc, sepiolite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/043" definition-exists="false" ipc-concordant="C04B14/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alkaline-earth metal silicates, e.g. wollastonite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/044" definition-exists="false" ipc-concordant="C04B14/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polysilicates, e.g. geopolymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/045" definition-exists="true" ipc-concordant="C04B14/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alkali-metal containing silicates, e.g. petalite </text><reference><text>waterglass <class-ref scheme="cpc">C04B12/04</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/046" definition-exists="false" ipc-concordant="C04B14/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Zircon</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/047" definition-exists="false" ipc-concordant="C04B14/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Zeolites</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/048" definition-exists="false" ipc-concordant="C04B14/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Granite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/06" definition-exists="true" ipc-concordant="C04B14/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Quartz</text></title-part><title-part><text>Sand</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/062" definition-exists="true" ipc-concordant="C04B14/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B14/062</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Microsilica, e.g. collo&#239;dal silica </text><reference><text>preparing microsilica slurries or suspensions <class-ref scheme="cpc">C04B18/148</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/064" definition-exists="true" ipc-concordant="C04B14/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silica aerogel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/066" definition-exists="false" ipc-concordant="C04B14/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Precipitated or pyrogenic silica</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/068" definition-exists="true" ipc-concordant="C04B14/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Specific natural sands, e.g. sea -, beach -, dune - or desert sand</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/08" definition-exists="true" ipc-concordant="C04B14/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Diatomaceous earth</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/10" definition-exists="true" ipc-concordant="C04B14/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Clay </text><CPC-specific-text><reference><text>sepiolite <class-ref scheme="cpc">C04B14/042</class-ref>; grog <class-ref scheme="cpc">C04B18/025</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/102" definition-exists="false" ipc-concordant="C04B14/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Attapulgite clay</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/104" definition-exists="true" ipc-concordant="C04B14/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bentonite, e.g. montmorillonite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/106" definition-exists="true" ipc-concordant="C04B14/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Kaolin</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/14" definition-exists="true" ipc-concordant="C04B14/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Minerals of vulcanic origin </text><CPC-specific-text><reference><text>granite <class-ref scheme="cpc">C04B14/048</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/16" definition-exists="true" ipc-concordant="C04B14/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>porous, e.g. pumice</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/18" definition-exists="true" ipc-concordant="C04B14/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Perlite</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B14/185" definition-exists="true" ipc-concordant="C04B14/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>expanded</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/20" definition-exists="true" ipc-concordant="C04B14/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B14/20</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Mica</text></title-part><title-part><text>Vermiculite </text><CPC-specific-text><reference><text>mechanical splitting <class-ref scheme="cpc">B28D</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/202" definition-exists="true" ipc-concordant="C04B14/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/202</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Vermiculite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/204" definition-exists="true" ipc-concordant="C04B14/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/204</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>expanded</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/206" definition-exists="true" ipc-concordant="C04B14/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mica or vermiculite modified by cation-exchange; chemically exfoliated vermiculate</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B14/208" definition-exists="true" ipc-concordant="C04B14/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/208</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>delaminated mica or vermiculite platelets</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/22" definition-exists="true" ipc-concordant="C04B14/22" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B14/22</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Glass </text><CPC-specific-text><text>; Devitrified glass</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/24" definition-exists="true" ipc-concordant="C04B14/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>porous, e.g. foamed glass</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/28" definition-exists="true" ipc-concordant="C04B14/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of calcium</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/285" definition-exists="false" ipc-concordant="C04B14/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Marble</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B14/30" definition-exists="true" ipc-concordant="C04B14/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxides other than silica </text><CPC-specific-text><reference><text>ferrites <class-ref scheme="cpc">C04B14/363</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/301" definition-exists="false" ipc-concordant="C04B14/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/301</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>porous or hollow</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/302" definition-exists="false" ipc-concordant="C04B14/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/302</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aerogels</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/303" definition-exists="true" ipc-concordant="C04B14/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/303</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alumina</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/304" definition-exists="false" ipc-concordant="C04B14/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/304</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Magnesia</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/305" definition-exists="false" ipc-concordant="C04B14/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Titanium oxide, e.g. titanates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/306" definition-exists="true" ipc-concordant="C04B14/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/306</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Zirconium oxide </text><reference><text>zircon <class-ref scheme="cpc">C04B14/046</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/307" definition-exists="false" ipc-concordant="C04B14/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/307</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Chromium oxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/308" definition-exists="true" ipc-concordant="C04B14/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/308</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Iron oxide</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/321" definition-exists="false" ipc-concordant="C04B14/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/321</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Borides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/322" definition-exists="false" ipc-concordant="C04B14/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/322</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/323" definition-exists="false" ipc-concordant="C04B14/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Boron carbide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/324" definition-exists="false" ipc-concordant="C04B14/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/324</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicon carbide</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/325" definition-exists="false" ipc-concordant="C04B14/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/325</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nitrides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/326" definition-exists="false" ipc-concordant="C04B14/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/326</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aluminium nitride</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/327" definition-exists="false" ipc-concordant="C04B14/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/327</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Boron nitride</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/328" definition-exists="false" ipc-concordant="C04B14/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/328</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicon nitride</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/361" definition-exists="true" ipc-concordant="C04B14/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/361</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Soil, e.g. laterite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/363" definition-exists="false" ipc-concordant="C04B14/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/363</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ferrites</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/365" definition-exists="false" ipc-concordant="C04B14/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gypsum </text><reference><text>synthetic gypsum <class-ref scheme="cpc">C04B18/0445</class-ref>, <class-ref scheme="cpc">C04B18/064</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/366" definition-exists="false" ipc-concordant="C04B14/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/366</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphates, e.g. apatite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/368" definition-exists="false" ipc-concordant="C04B14/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/368</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Baryte</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B14/383" definition-exists="false" ipc-concordant="C04B14/38" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/383</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Whiskers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B14/386" definition-exists="true" ipc-concordant="C04B14/38" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/386</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbon </text><reference><text>carbon nanotubes <class-ref scheme="cpc">C04B14/026</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B14/40" definition-exists="true" ipc-concordant="C04B14/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Asbestos</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B14/42" definition-exists="true" ipc-concordant="C04B14/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Glass</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/44" definition-exists="true" ipc-concordant="C04B14/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Treatment for enhancing alkali resistance </text><CPC-specific-text><reference><text>composition of alkali resistant glass fibres <class-ref scheme="cpc">C03C13/00</class-ref>; coating of glass fibres <class-ref scheme="cpc">C03C25/10</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B14/46" definition-exists="true" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B14/46</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Rock wool </text><CPC-specific-text><text>; Ceramic or silicate fibres </text><reference><text><class-ref scheme="cpc">C04B14/40</class-ref>, <class-ref scheme="cpc">C04B14/42</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/4606" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4606</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>added as organic or organo-mineral precursors</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/4612" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4612</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Al-borates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/4618" definition-exists="true" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4618</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oxides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/4625" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4625</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alumina</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/4631" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4631</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silica</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/4637" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4637</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Zirconia or zircon</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/4643" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4643</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicates other than zircon</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/465" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/465</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ca-silicate, e.g. wollastonite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/4656" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4656</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Al-silicates, e.g. clay</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/4662" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4662</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polysilicates, e.g. geopolymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/4668" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4668</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of vulcanic origin</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/4675" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4675</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from slags</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/4681" definition-exists="true" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4681</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Titanates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B14/4687" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4687</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-oxide ceramics </text><reference><text>carbon or graphite fibres <class-ref scheme="cpc">C04B14/386</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B14/4693" definition-exists="false" ipc-concordant="C04B14/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/4693</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicon carbide</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B14/48" definition-exists="false" ipc-concordant="C04B14/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B14/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metal</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B16/00" definition-exists="false" ipc-concordant="C04B16/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone</text></title-part><title-part><text>Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Fillers with a well-defined shape other than granular are considered to be reinforcing elements and thus are classified in <class-ref scheme="cpc">E04C5/00</class-ref>. However, if they are only characterised by their composition, classification is made in <class-ref scheme="cpc">C04B</class-ref> only </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B16/02" definition-exists="true" ipc-concordant="C04B16/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cellulosic materials </text><reference><text>cellulosic waste materials, e.g. sawdust, rice husks, <class-ref scheme="cpc">C04B18/24</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B16/04" definition-exists="true" ipc-concordant="C04B16/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Macromolecular compounds </text><reference><text><class-ref scheme="cpc">C04B16/02</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B16/06" definition-exists="true" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>fibrous</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B16/0608" definition-exists="true" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0608</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibrilles, e.g. fibrillated films</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B16/0616" definition-exists="false" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0616</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B16/0625" definition-exists="false" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0625</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyalkenes, e.g. polyethylene</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B16/0633" definition-exists="false" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0633</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polypropylene</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B16/0641" definition-exists="false" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0641</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyvinylalcohols; Polyvinylacetates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B16/065" definition-exists="false" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyacrylates; Polymethacrylates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B16/0658" definition-exists="false" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0658</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyacrylonitrile</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B16/0666" definition-exists="false" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0666</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polystyrene</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B16/0675" definition-exists="false" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0675</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B16/0683" definition-exists="false" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0683</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyesters, e.g. polylactides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B16/0691" definition-exists="true" ipc-concordant="C04B16/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/0691</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyamides; Polyaramides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B16/08" definition-exists="true" ipc-concordant="C04B16/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B16/08</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>porous, e.g. expanded polystyrene beads </text><CPC-specific-text><text>or microballoons</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B16/082" definition-exists="false" ipc-concordant="C04B16/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>other than polystyrene based, e.g. polyurethane foam</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B16/085" definition-exists="false" ipc-concordant="C04B16/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>expanded <u>in situ</u>, i.e. during or after mixing the mortar, concrete or artificial stone ingredients</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B16/087" definition-exists="false" ipc-concordant="C04B16/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>shredded</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B16/10" definition-exists="true" ipc-concordant="C04B16/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B16/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Treatment for enhancing the mixability with the mortar </text><CPC-specific-text><reference><text>coating <class-ref scheme="cpc">C04B20/10</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B16/12" definition-exists="true" ipc-concordant="C04B16/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B16/12</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>characterised by the shape </text><reference><text>fibrous macromolecular compounds <class-ref scheme="cpc">C04B16/06</class-ref>; porous macromolecular compounds <class-ref scheme="cpc">C04B16/08</class-ref> </text></reference><CPC-specific-text><text>, e.g. perforated strips</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B18/00" definition-exists="true" ipc-concordant="C04B18/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone </text><reference><text>use of waste materials for the manufacture of cement <class-ref scheme="cpc">C04B7/24</class-ref></text></reference></title-part><title-part><text>Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Fillers with a well defined shape other than granular are considered to be reinforcing elements and thus are classified in <class-ref scheme="cpc">E04C5/00</class-ref>. However, if they are only characterised by their composition, classification is made in <class-ref scheme="cpc">C04B</class-ref> only </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B18/02" definition-exists="true" ipc-concordant="C04B18/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B18/02</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Agglomerated materials </text><CPC-specific-text><text>, e.g. artificial aggregates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/021" definition-exists="true" ipc-concordant="C04B18/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>agglomerated by a mineral binder, e.g. cement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/022" definition-exists="true" ipc-concordant="C04B18/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>agglomerated by an organic binder</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/023" definition-exists="true" ipc-concordant="C04B18/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/023</classification-symbol><class-title date-revised="2023-01-01"><title-part><CPC-specific-text><text>Fired or melted materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/025" definition-exists="true" ipc-concordant="C04B18/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Grog</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/026" definition-exists="true" ipc-concordant="C04B18/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Melted materials </text><reference><text><class-ref scheme="cpc">C04B14/22</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/027" definition-exists="true" ipc-concordant="C04B18/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/027</classification-symbol><class-title date-revised="2023-01-01"><title-part><CPC-specific-text><text>Lightweight materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/028" definition-exists="false" ipc-concordant="C04B18/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B18/028</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>temporarily agglomerated, e.g. agglomerates which fall apart during mixing with the other mortar or concrete ingredients</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B18/04" definition-exists="true" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/04</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>Waste materials</text></title-part><title-part><text>Refuse</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/0409" definition-exists="true" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/0409</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste from the purification of bauxite, e.g. red mud</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/0418" definition-exists="false" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/0418</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Wet materials, e.g. slurries</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/0427" definition-exists="true" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/0427</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dry materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/0436" definition-exists="true" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/0436</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dredged harbour or river sludge </text><reference><text>other slurries or sludges <class-ref scheme="cpc">C04B18/0418</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/0445" definition-exists="true" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/0445</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Synthetic gypsum, e.g. phosphogypsum </text><reference><text>gypsum from smoke purification <class-ref scheme="cpc">C04B18/064</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/0454" definition-exists="true" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/0454</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bleaching earth</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/0463" definition-exists="false" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/0463</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hazardous waste</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/0472" definition-exists="false" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/0472</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste material contaminated by heavy metals</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/0475" definition-exists="false" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/0475</classification-symbol><class-title date-revised="2023-01-01"><title-part><CPC-specific-text><text>Waste asbestos</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/0481" definition-exists="true" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/0481</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other specific industrial waste materials not provided for elsewhere in <class-ref scheme="cpc">C04B18/00</class-ref></text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/049" definition-exists="false" ipc-concordant="C04B18/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/049</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Wastes from oil or other wells, e.g. drilling mud</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/06" definition-exists="true" ipc-concordant="C04B18/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion residues, e.g. purification products of smoke, fumes or exhaust gases</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/061" definition-exists="true" ipc-concordant="C04B18/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ashes from fluidised bed furnaces</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/062" definition-exists="false" ipc-concordant="C04B18/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Purification products of smoke, fume or exhaust-gases</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/064" definition-exists="false" ipc-concordant="C04B18/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gypsum</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/065" definition-exists="true" ipc-concordant="C04B18/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Residues from coal gasification</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/067" definition-exists="false" ipc-concordant="C04B18/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slags</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/068" definition-exists="false" ipc-concordant="C04B18/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from burning wood</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/08" definition-exists="true" ipc-concordant="C04B18/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B18/08</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Flue dust </text><CPC-specific-text><text>, i.e. fly ash</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/081" definition-exists="true" ipc-concordant="C04B18/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from brown coal or lignite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/082" definition-exists="true" ipc-concordant="C04B18/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cenospheres</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/084" definition-exists="false" ipc-concordant="C04B18/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained from mixtures of pulverised coal and additives, added to influence the composition of the resulting flue dust</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/085" definition-exists="true" ipc-concordant="C04B18/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pelletizing</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/087" definition-exists="false" ipc-concordant="C04B18/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from liquid fuels, e.g. oil</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/088" definition-exists="false" ipc-concordant="C04B18/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in high volume fly ash compositions</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/10" definition-exists="true" ipc-concordant="C04B18/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Burned </text><CPC-specific-text><text>or pyrolised</text></CPC-specific-text><text> refuse</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/101" definition-exists="true" ipc-concordant="C04B18/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Burned rice husks or other burned vegetable material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/103" definition-exists="true" ipc-concordant="C04B18/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Burned or pyrolised sludges</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/105" definition-exists="true" ipc-concordant="C04B18/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gaseous combustion products or dusts collected from waste incineration, e.g. sludge resulting from the purification of gaseous combustion products of waste incineration</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B18/106" definition-exists="false" ipc-concordant="C04B18/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fly ash from waste incinerators</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/108" definition-exists="false" ipc-concordant="C04B18/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving a melting step</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/12" definition-exists="true" ipc-concordant="C04B18/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from quarries, mining or the like</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/125" definition-exists="false" ipc-concordant="C04B18/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slate residues, e.g. colliery shale or oil shale or oil shale ash</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/14" definition-exists="true" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/14</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>from metallurgical processes </text><reference><text>treatment of molten slag <class-ref scheme="cpc">C04B5/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/141" definition-exists="true" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/141</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slags</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/142" definition-exists="false" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Steelmaking slags, converter slags</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B18/143" definition-exists="false" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>L.D. slags, i.e. Linz-Donawitz slags</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/144" definition-exists="false" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/144</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slags from the production of specific metals other than iron or of specific alloys, e.g. ferrochrome slags</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/145" definition-exists="false" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphorus slags</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/146" definition-exists="true" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silica fume</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/147" definition-exists="false" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Conditioning</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B18/148" definition-exists="false" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preparing silica fume slurries or suspensions</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/149" definition-exists="true" ipc-concordant="C04B18/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/149</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>other than silica fume or slag</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/16" definition-exists="true" ipc-concordant="C04B18/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/16</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>from building or ceramic industry</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/162" definition-exists="true" ipc-concordant="C04B18/162" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/162</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>Cement kiln dust</text></title-part><title-part><text>Lime kiln dust</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/165" definition-exists="false" ipc-concordant="C04B18/165" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/165</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>Ceramic waste</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/167" definition-exists="false" ipc-concordant="C04B18/167" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/167</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>Recycled materials, i.e. waste materials reused in the production of the same materials</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/18" definition-exists="true" ipc-concordant="C04B18/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>organic </text><reference><text><class-ref scheme="cpc">C04B18/10</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/20" definition-exists="true" ipc-concordant="C04B18/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>C04B18/20</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>from macromolecular compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/22" definition-exists="false" ipc-concordant="C04B18/22" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>C04B18/22</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Rubber </text><CPC-specific-text><text>, e.g. ground waste tires</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/24" definition-exists="true" ipc-concordant="C04B18/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B18/24</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Vegetable refuse, e.g. rice husks, maize-ear refuse</text></title-part><title-part><text>Cellulosic materials, e.g. paper </text><CPC-specific-text><text>, cork</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/241" definition-exists="true" ipc-concordant="C04B18/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/241</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Paper, e.g. waste paper; Paper pulp</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B18/243" definition-exists="true" ipc-concordant="C04B18/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/243</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste from paper processing or recycling paper, e.g. de-inking sludge </text><reference><text>burned paper processing waste <class-ref scheme="cpc">C04B18/10</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/245" definition-exists="true" ipc-concordant="C04B18/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/245</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cork; Bark</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/246" definition-exists="false" ipc-concordant="C04B18/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>expanded</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/248" definition-exists="true" ipc-concordant="C04B18/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/248</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from specific plants, e.g. hemp fibres</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/26" definition-exists="true" ipc-concordant="C04B18/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Wood, e.g. sawdust, wood shavings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B18/265" definition-exists="false" ipc-concordant="C04B18/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from specific species, e.g. birch</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B18/28" definition-exists="true" ipc-concordant="C04B18/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mineralising</text></title-part><title-part><text>Compositions therefor</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B18/30" definition-exists="true" ipc-concordant="C04B18/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mixed waste</text></title-part><title-part><text>Waste of undefined composition, </text><reference><text><class-ref scheme="cpc">C04B18/10</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B18/305" definition-exists="false" ipc-concordant="C04B18/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B18/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Municipal waste</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B20/00" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B20/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups <class-ref scheme="cpc">C04B14/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B18/00</class-ref> and characterised by shape or grain distribution</text></title-part><title-part><text>Treatment of materials according to more than one of the groups <class-ref scheme="cpc">C04B14/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B18/00</class-ref> specially adapted to enhance their filling properties in mortars, concrete or artificial stone</text></title-part><title-part><text>Expanding or defibrillating materials</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Fillers with a well-defined shape other than granular are considered to be reinforcing elements and thus are classified in <class-ref scheme="cpc">E04C5/00</class-ref>. However, if they are only characterised by their composition, classification is made in <class-ref scheme="cpc">C04B</class-ref> only </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B20/0004" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Microcomposites or nanocomposites, e.g. composite particles obtained by polymerising monomers onto inorganic materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B20/0008" definition-exists="true" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B20/0008</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Materials specified by a shape not covered by <class-ref scheme="cpc">C04B20/0016</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B20/0056</class-ref>, e.g. nanotubes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/0012" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0012</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Irregular shaped fillers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B20/0016" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B20/0016</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Granular materials, e.g. microballoons</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/002" definition-exists="true" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hollow or porous granular materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/0024" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>expanded <u>in situ</u>, i.e. the material is expanded or made hollow after primary shaping of the mortar, concrete or artificial stone mixture </text><reference><text><class-ref scheme="cpc">C04B16/085</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/0028" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>crushable</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/0032" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0032</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the gas filling pores, e.g. inert gas or air at reduced pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/0036" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B20/0036</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Microsized or nanosized</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/004" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>inorganic</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/0044" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained from irregularly shaped particles</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B20/0048" definition-exists="true" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibrous materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/0052" definition-exists="true" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0052</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mixtures of fibres of different physical characteristics, e.g. different lengths</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/0056" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0056</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hollow or porous fibres</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/006" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Microfibres; Nanofibres</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/0064" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ground fibres</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/0068" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Composite fibres, e.g. fibres with a core and sheath of different material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/0072" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Continuous fibres</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B20/0076" definition-exists="true" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0076</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the grain distribution</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/008" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B20/008</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder </text><reference><text>colloidal silica <class-ref scheme="cpc">C04B14/062</class-ref> ; silica fume <class-ref scheme="cpc">C04B18/146</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/0084" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Conditioning, e.g. preparing suspensions thereof </text><reference><text><class-ref scheme="cpc">C04B18/148</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/0088" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fillers with mono- or narrow grain size distribution</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/0092" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fillers with fine grain sizes only</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/0096" definition-exists="false" ipc-concordant="C04B20/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/0096</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fillers with bimodal grain size distribution</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B20/02" definition-exists="true" ipc-concordant="C04B20/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Treatment</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/023" definition-exists="false" ipc-concordant="C04B20/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Chemical treatment</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/026" definition-exists="false" ipc-concordant="C04B20/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/04" definition-exists="true" ipc-concordant="C04B20/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat treatment</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/06" definition-exists="false" ipc-concordant="C04B20/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Expanding clay, perlite, vermiculite or like granular materials</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/061" definition-exists="false" ipc-concordant="C04B20/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in rotary kilns</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/063" definition-exists="true" ipc-concordant="C04B20/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by grate sintering</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/065" definition-exists="true" ipc-concordant="C04B20/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in fluidised beds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/066" definition-exists="false" ipc-concordant="C04B20/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in shaft or vertical furnaces</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/068" definition-exists="true" ipc-concordant="C04B20/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Selection of ingredients added before or during the thermal treatment, e.g. expansion promoting agents or particle-coating materials</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/08" definition-exists="true" ipc-concordant="C04B20/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>C04B20/08</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>Defibrillating asbestos </text><CPC-specific-text><reference><text>defibrillating other fibres <class-ref scheme="cpc">C04B20/026</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B20/10" definition-exists="true" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Coating or impregnating </text><CPC-specific-text><reference><text>roofing granules <class-ref scheme="cpc">E04D7/005</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/1003" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-compositional aspects of the coating or impregnation</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1007" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Porous or lightweight coatings</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1011" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1011</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Temporary coatings</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1014" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1014</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coating or impregnating materials characterised by the shape, e.g. fibrous materials</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/1018" definition-exists="true" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with organic materials </text><reference><text>pigments or dyes <class-ref scheme="cpc">C04B20/1096</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1022" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-macromolecular compounds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/1025" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fats; Fatty oils; Ester type waxes; Higher fatty acids; Derivatives thereof</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1029" definition-exists="true" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1029</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Macromolecular compounds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/1033" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained by reactions only involving carbon-to-carbon unsaturated bonds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/1037" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1037</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/104" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Natural resins, e.g. tall oil</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/1044" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bituminous materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/1048" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polysaccharides, e.g. cellulose, or derivatives thereof</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/1051" definition-exists="true" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1051</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organo-metallic compounds; Organo-silicon compounds, e.g. bentone</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/1055" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1055</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inorganic materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1059" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1059</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pigments or precursors thereof</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1062" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Metals</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1066" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oxides, Hydroxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/107" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Acids or salts thereof</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1074" definition-exists="true" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1074</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicates, e.g. glass</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1077" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1077</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cements, e.g. waterglass</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/1081" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mineral polymers, e.g. geopolymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B20/1085" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waterglass</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1088" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Water</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/1092" definition-exists="true" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with pigments or dyes </text><reference><text><class-ref scheme="cpc">C04B20/1059</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/1096" definition-exists="false" ipc-concordant="C04B20/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/1096</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>organic</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B20/12" definition-exists="true" ipc-concordant="C04B20/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Multiple coating or impregnating</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/123" definition-exists="false" ipc-concordant="C04B20/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple coatings, for one of the coatings of which at least one alternative is described</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B20/126" definition-exists="false" ipc-concordant="C04B20/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B20/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple coatings, comprising a coating layer of the same material as a previous coating layer</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C04B22/00" date-revised="2016-05-01" status="published"><classification-symbol>C04B22/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of materials as active ingredients</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Active ingredients which react with cement compounds for forming new or modified mineralogical phases and are added before the hardening process, as well as cements added as additives to other cements, are classified in groups <class-ref scheme="cpc">C04B7/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B12/00</class-ref>, e.g. in group <class-ref scheme="cpc">C04B7/42</class-ref>. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B22/00" definition-exists="true" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B22/00</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators </text><CPC-specific-text><text>, shrinkage compensating agents</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/0006" definition-exists="true" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/0006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste inorganic materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/0013" definition-exists="true" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/0013</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Boron compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/002" definition-exists="true" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Water</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/0026" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/0026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Salt water, e.g. seawater</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/0033" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/0033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>other than sea water, e.g. from mining activities</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/004" definition-exists="true" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B22/004</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>containing dissolved additives or active agents, i.e. aqueous solutions used as gauging water </text><reference><text><class-ref scheme="cpc">C04B22/0026</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/0046" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/0046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste slurries or solutions used as gauging water</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/0053" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/0053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>added in a particular physical form, e.g. atomised or in the gas phase</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/006" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>released by a chemical reaction, e.g. polymer condensation</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/0066" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/0066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Compounds chosen for their high crystalwater content</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/0073" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/0073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>added in the non-hydrated or only partially-hydrated form</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/008" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation </text><reference><text>mixtures of cements <class-ref scheme="cpc">C04B7/00</class-ref>, <class-ref scheme="cpc">C04B28/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/0086" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2021-05-01" status="published"><classification-symbol>C04B22/0086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Seeding materials</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">C04B22/0086</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">C04B22/00863</class-ref> and <class-ref scheme="cpc">C04B22/00867</class-ref>.<br/>Groups <class-ref scheme="cpc">C04B22/0086</class-ref>, <class-ref scheme="cpc">C04B22/00863</class-ref> and <class-ref scheme="cpc">C04B22/00867</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/00863" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2021-05-01" status="published"><classification-symbol>C04B22/00863</classification-symbol><class-title date-revised="2021-05-01"><title-part><CPC-specific-text><text>Calcium silicate hydrate</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">C04B22/00863</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">C04B22/0086</class-ref>.<br/>Groups <class-ref scheme="cpc">C04B22/0086</class-ref> and <class-ref scheme="cpc">C04B22/00863</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/00867" definition-exists="false" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2021-05-01" status="published"><classification-symbol>C04B22/00867</classification-symbol><class-title date-revised="2021-05-01"><title-part><CPC-specific-text><text>Ettringite</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">C04B22/00867</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">C04B22/0086</class-ref>. <br/>Groups <class-ref scheme="cpc">C04B22/0086</class-ref> and <class-ref scheme="cpc">C04B22/00867</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/0093" definition-exists="true" ipc-concordant="C04B22/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/0093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aluminates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/02" definition-exists="true" ipc-concordant="C04B22/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Elements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/04" definition-exists="true" ipc-concordant="C04B22/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metals, e.g. aluminium used as blowing agent</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/06" definition-exists="true" ipc-concordant="C04B22/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxides, Hydroxides </text><reference><text><class-ref scheme="cpc">C04B22/0013</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/062" definition-exists="true" ipc-concordant="C04B22/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the alkali or alkaline-earth metals</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/064" definition-exists="false" ipc-concordant="C04B22/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the alkaline-earth metals</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/066" definition-exists="false" ipc-concordant="C04B22/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Magnesia; Magnesium hydroxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/068" definition-exists="true" ipc-concordant="C04B22/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Peroxides, e.g. hydrogen peroxide</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B22/08" definition-exists="true" ipc-concordant="C04B22/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acids or salts thereof </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C04B22/0013</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/082" definition-exists="false" ipc-concordant="C04B22/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Acids</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/085" definition-exists="false" ipc-concordant="C04B22/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing nitrogen in the anion, e.g. nitrites</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/087" definition-exists="false" ipc-concordant="C04B22/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing chromium in the anion, e.g. chromates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/10" definition-exists="true" ipc-concordant="C04B22/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing carbon in the anion</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/103" definition-exists="false" ipc-concordant="C04B22/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Acids</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/106" definition-exists="false" ipc-concordant="C04B22/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bicarbonates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/12" definition-exists="true" ipc-concordant="C04B22/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing halogen in the anion</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/122" definition-exists="false" ipc-concordant="C04B22/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Acids</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/124" definition-exists="true" ipc-concordant="C04B22/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Chlorides of ammonium or of the alkali or alkaline earth metals, e.g. calcium chloride</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/126" definition-exists="true" ipc-concordant="C04B22/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluorine compounds, e.g. silico-fluorine compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/128" definition-exists="false" ipc-concordant="C04B22/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bromine compounds</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/14" definition-exists="true" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing sulfur in the anion, e.g. sulfides</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/141" definition-exists="false" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/141</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Acids</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/142" definition-exists="true" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sulfates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B22/143" definition-exists="false" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Calcium-sulfate</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B22/144" definition-exists="false" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/144</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphogypsum</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B22/145" definition-exists="false" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gypsum from the desulfuration of flue gases</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B22/146" definition-exists="false" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>other waste Ca-sulfate</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B22/147" definition-exists="true" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alkali-metal sulfates; Ammonium sulfate</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B22/148" definition-exists="true" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aluminium-sulfate</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B22/149" definition-exists="false" ipc-concordant="C04B22/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/149</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Iron-sulfates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B22/16" definition-exists="true" ipc-concordant="C04B22/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing phosphorus in the anion, e.g. phosphates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B22/165" definition-exists="false" ipc-concordant="C04B22/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B22/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Acids</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B24/00" definition-exists="true" ipc-concordant="C04B24/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B24/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Groups <class-ref scheme="cpc">C04B24/003</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B24/006</class-ref> take precedence over groups <class-ref scheme="cpc">C04B24/008</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B24/226</class-ref></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/001" definition-exists="true" ipc-concordant="C04B24/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste organic materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/003" definition-exists="true" ipc-concordant="C04B24/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphorus-containing compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/005" definition-exists="true" ipc-concordant="C04B24/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Halogen-containing compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/006" definition-exists="false" ipc-concordant="C04B24/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Boron-containing compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/008" definition-exists="true" ipc-concordant="C04B24/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aldehydes, ketones</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/02" definition-exists="true" ipc-concordant="C04B24/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alcohols</text></title-part><title-part><text>Phenols</text></title-part><title-part><text>Ethers</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/023" definition-exists="true" ipc-concordant="C04B24/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ethers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/026" definition-exists="true" ipc-concordant="C04B24/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fatty alcohols</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/04" definition-exists="true" ipc-concordant="C04B24/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carboxylic acids</text></title-part><title-part><text>Salts, anhydrides or esters thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/045" definition-exists="true" ipc-concordant="C04B24/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Esters, e.g. lactones</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/06" definition-exists="true" ipc-concordant="C04B24/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing hydroxy groups</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/08" definition-exists="true" ipc-concordant="C04B24/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fats</text></title-part><title-part><text>Fatty oils</text></title-part><title-part><text>Ester type waxes</text></title-part><title-part><text>Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group</text></title-part><title-part><text>Oxidised oils or fats</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/085" definition-exists="true" ipc-concordant="C04B24/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Higher fatty acids</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/10" definition-exists="true" ipc-concordant="C04B24/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbohydrates or derivatives thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/12" definition-exists="true" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen containing compounds </text><CPC-specific-text><text>organic derivatives of hydrazine </text><reference><text>hydrazine <class-ref scheme="cpc">C04B22/00</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/121" definition-exists="true" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Amines, polyamines</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/122" definition-exists="true" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hydroxy amines</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/123" definition-exists="true" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Amino-carboxylic acids</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/124" definition-exists="true" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Amides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/125" definition-exists="true" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Compounds containing one or more carbon-to-nitrogen double or triple bonds, e.g. imines</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/126" definition-exists="true" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Urea</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/127" definition-exists="false" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nitro-compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/128" definition-exists="true" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heterocyclic nitrogen compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/129" definition-exists="false" ipc-concordant="C04B24/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/129</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Compounds containing one or more nitrogen-to-nitrogen double bonds, e.g. azo-compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/14" definition-exists="true" ipc-concordant="C04B24/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peptides</text></title-part><title-part><text>Proteins</text></title-part><title-part><text>Derivatives thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/16" definition-exists="true" ipc-concordant="C04B24/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur-containing compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/161" definition-exists="false" ipc-concordant="C04B24/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/161</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Macromolecular compounds comprising sulfonate or sulfate groups</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/163" definition-exists="false" ipc-concordant="C04B24/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained by reactions only involving carbon-to-carbon unsaturated bonds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/165" definition-exists="false" ipc-concordant="C04B24/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing polyether side chains</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/166" definition-exists="false" ipc-concordant="C04B24/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/168" definition-exists="false" ipc-concordant="C04B24/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/168</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polysaccharide derivatives, e.g. starch sulfate</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/18" definition-exists="true" ipc-concordant="C04B24/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/20" definition-exists="true" ipc-concordant="C04B24/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfonated aromatic compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/22" definition-exists="true" ipc-concordant="C04B24/22" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Condensation </text><CPC-specific-text><text>or polymerisation</text></CPC-specific-text><text> products thereof</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this group the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>&quot;aldehydes&quot; also covers other organic compounds reacting as aldehydes, e.g. glyoxylic acid </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/223" definition-exists="true" ipc-concordant="C04B24/22" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/223</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sulfonated melamine-formaldehyde condensation products</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/226" definition-exists="false" ipc-concordant="C04B24/22" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/226</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sulfonated naphtalene-formaldehyde condensation products</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/24" definition-exists="true" ipc-concordant="C04B24/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Macromolecular compounds </text><reference><text><class-ref scheme="cpc">C04B24/14</class-ref> takes precedence; macromolecular compounds comprising sulfonate or sulfate groups <class-ref scheme="cpc">C04B24/16</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/243" definition-exists="false" ipc-concordant="C04B24/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/243</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphorus-containing polymers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/246" definition-exists="false" ipc-concordant="C04B24/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing polyether side chains</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/26" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained by reactions only involving carbon-to-carbon unsaturated bonds </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C04B24/243</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2605" definition-exists="false" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2605</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing polyether side chains</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2611" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2611</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyalkenes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2617" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2617</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coumarone polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2623" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2623</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyvinylalcohols; Polyvinylacetates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/2629" definition-exists="false" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2629</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing polyether side chains</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2635" definition-exists="false" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2635</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyvinylacetals</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2641" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2641</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyacrylates; Polymethacrylates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/2647" definition-exists="false" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2647</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing polyether side chains</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2652" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2652</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nitrogen containing polymers, e.g. polyacrylamides, polyacrylonitriles</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/2658" definition-exists="false" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2658</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing polyether side chains</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2664" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2664</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of ethylenically unsaturated dicarboxylic acid polymers, e.g. maleic anhydride copolymers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/267" definition-exists="false" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/267</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing polyether side chains</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2676" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2676</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polystyrenes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2682" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2682</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Halogen containing polymers, e.g. PVC</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/2688" definition-exists="true" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2688</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Copolymers containing at least three different monomers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/2694" definition-exists="false" ipc-concordant="C04B24/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/2694</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing polyether side chains</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/28" definition-exists="true" ipc-concordant="C04B24/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C04B24/243</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/281" definition-exists="true" ipc-concordant="C04B24/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/281</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyepoxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/282" definition-exists="false" ipc-concordant="C04B24/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyurethanes; Polyisocyanates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/283" definition-exists="true" ipc-concordant="C04B24/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/283</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyesters</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/285" definition-exists="false" ipc-concordant="C04B24/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polylactides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/286" definition-exists="false" ipc-concordant="C04B24/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polycarbonates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/287" definition-exists="false" ipc-concordant="C04B24/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/287</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyamides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/288" definition-exists="false" ipc-concordant="C04B24/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/288</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Halogen containing polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/30" definition-exists="false" ipc-concordant="C04B24/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Condensation polymers of aldehydes or ketones</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this group the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph> &quot;aldehydes&quot; also covers other organic compounds reacting as aldehydes, e.g. glyoxylic acid </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/302" definition-exists="true" ipc-concordant="C04B24/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/302</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phenol-formaldehyde condensation polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/305" definition-exists="true" ipc-concordant="C04B24/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Melamine-formaldehyde condensation polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/307" definition-exists="true" ipc-concordant="C04B24/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/307</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Urea-formaldehyde condensation polymers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/32" definition-exists="true" ipc-concordant="C04B24/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Polyethers, e.g. alkylphenol polyglycolether</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/34" definition-exists="true" ipc-concordant="C04B24/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Natural resins, e.g. rosin </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C04B24/243</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/36" definition-exists="true" ipc-concordant="C04B24/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bituminous materials, e.g. tar, pitch </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C04B24/243</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/38" definition-exists="true" ipc-concordant="C04B24/38" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Polysaccharides or derivatives thereof </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C04B24/243</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/383" definition-exists="true" ipc-concordant="C04B24/38" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/383</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cellulose or derivatives thereof</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B24/386" definition-exists="false" ipc-concordant="C04B24/38" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/386</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing polyether side chains</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B24/40" definition-exists="false" ipc-concordant="C04B24/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds containing silicon, titanium or zirconium </text><CPC-specific-text><text>or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/405" definition-exists="true" ipc-concordant="C04B24/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/405</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organo-inorganic complexes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B24/42" definition-exists="true" ipc-concordant="C04B24/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Organo-silicon compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B24/425" definition-exists="false" ipc-concordant="C04B24/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B24/425</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organo-modified inorganic compounds, e.g. organo-clays</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C04B26/00" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compositions of mortars, concrete or artificial stone </text><reference><text>artificial stone from molten slag <class-ref scheme="cpc">C04B5/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B26/00" definition-exists="true" ipc-concordant="C04B26/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B26/00</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Compositions of mortars, concrete or artificial stone, containing only organic binders </text><CPC-specific-text><text>, e.g. polymer or resin concrete </text><reference><text>mechanical aspects of moulding polymer or resin concrete <class-ref scheme="cpc">B29C67/242</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B26/003" definition-exists="true" ipc-concordant="C04B26/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oil-based binders, e.g. containing linseed oil</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B26/006" definition-exists="false" ipc-concordant="C04B26/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste materials as binder</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B26/02" definition-exists="true" ipc-concordant="C04B26/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Macromolecular compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B26/023" definition-exists="false" ipc-concordant="C04B26/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organic ionomer cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B26/026" definition-exists="true" ipc-concordant="C04B26/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Proteins or derivatives thereof</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B26/04" definition-exists="true" ipc-concordant="C04B26/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained by reactions only involving carbon-to-carbon unsaturated bonds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/045" definition-exists="true" ipc-concordant="C04B26/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyalkenes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/06" definition-exists="true" ipc-concordant="C04B26/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acrylates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/08" definition-exists="false" ipc-concordant="C04B26/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing halogen</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B26/10" definition-exists="true" ipc-concordant="C04B26/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/105" definition-exists="false" ipc-concordant="C04B26/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Furfuryl alcohol polymers, e.g. furan-polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/12" definition-exists="false" ipc-concordant="C04B26/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Condensation polymers of aldehydes or ketones</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this group the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph> &quot;aldehydes&quot; also covers other organic compounds reacting as aldehydes, e.g. glyoxylic acid </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B26/122" definition-exists="true" ipc-concordant="C04B26/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phenol-formaldehyde condensation polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B26/125" definition-exists="false" ipc-concordant="C04B26/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Melamine-formaldehyde condensation polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B26/127" definition-exists="false" ipc-concordant="C04B26/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Urea formaldehyde condensation polymers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/14" definition-exists="true" ipc-concordant="C04B26/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Polyepoxides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/16" definition-exists="true" ipc-concordant="C04B26/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Polyurethanes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/18" definition-exists="true" ipc-concordant="C04B26/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Polyesters</text></title-part><title-part><text>Polycarbonates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/20" definition-exists="false" ipc-concordant="C04B26/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Polyamides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B26/22" definition-exists="true" ipc-concordant="C04B26/22" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Natural resins, e.g. rosin</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/24" definition-exists="false" ipc-concordant="C04B26/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cellulosic waste liquor, e.g. sulfite lye</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B26/26" definition-exists="true" ipc-concordant="C04B26/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bituminous materials, e.g. tar, pitch </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C08L95/00</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B26/28" definition-exists="false" ipc-concordant="C04B26/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2021-05-01" status="published"><classification-symbol>C04B26/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Polysaccharides or derivatives thereof</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">C04B26/28</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">C04B26/285</class-ref>.<br/>Groups <class-ref scheme="cpc">C04B26/285</class-ref> and <class-ref scheme="cpc">C04B26/28</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B26/285" definition-exists="true" ipc-concordant="C04B26/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2021-05-01" status="published"><classification-symbol>C04B26/285</classification-symbol><class-title date-revised="2021-05-01"><title-part><CPC-specific-text><text>Cellulose or derivatives thereof </text><reference><text><class-ref scheme="cpc">C04B26/24</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">C04B26/285</class-ref> is impacted by reclassification into group <class-ref scheme="cpc">C04B26/28</class-ref>.<br/>Groups <class-ref scheme="cpc">C04B26/285</class-ref> and <class-ref scheme="cpc">C04B26/28</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B26/30" definition-exists="false" ipc-concordant="C04B26/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B26/30</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Compounds having one or more carbon-to-metal or carbon-to-silicon linkages </text><CPC-specific-text><text>; Other silicon-containing organic compounds; Boron-organic compounds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B26/32" definition-exists="false" ipc-concordant="C04B26/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B26/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing silicon</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B28/00" definition-exists="true" ipc-concordant="C04B28/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B28/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> While using Combination Sets in this main group, the presence of an organic binder is indicated with symbols chosen from group <class-ref scheme="cpc">C04B24/00</class-ref>, and the presence of a supplementary inorganic binder with symbols chosen from groups <class-ref scheme="cpc">C04B7/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B12/00</class-ref></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/001" definition-exists="true" ipc-concordant="C04B28/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing unburned clay </text><reference><text>polymer binder - clay mixtures used in well cementing <class-ref scheme="cpc">C09K8/44</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/003" definition-exists="false" ipc-concordant="C04B28/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing hybrid binders other than those of the polycarboxylate type</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/005" definition-exists="true" ipc-concordant="C04B28/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing gelatineous or gel forming binders, e.g. gelatineous Al(OH)3, sol-gel binders</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/006" definition-exists="true" ipc-concordant="C04B28/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing mineral polymers, e.g. geopolymers of the Davidovits type</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/008" definition-exists="false" ipc-concordant="C04B28/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mineral polymers other than those of the Davidovits type, e.g. from a reaction mixture containing waterglass</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/02" definition-exists="false" ipc-concordant="C04B28/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing hydraulic cements other than calcium sulfates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/021" definition-exists="true" ipc-concordant="C04B28/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ash cements, e.g. fly ash cements </text><reference><text>fly ash as filler <class-ref scheme="cpc">C04B18/08</class-ref></text></reference><text>; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration </text><reference><text>alkali-activated combustion residues as such <class-ref scheme="cpc">C04B7/243</class-ref>; mixtures of the lime-pozzuolane type <class-ref scheme="cpc">C04B28/18</class-ref></text></reference><text>; Kiln dust cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/023" definition-exists="false" ipc-concordant="C04B28/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Barium cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/025" definition-exists="false" ipc-concordant="C04B28/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Belite cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/026" definition-exists="false" ipc-concordant="C04B28/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oil shale cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/028" definition-exists="false" ipc-concordant="C04B28/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alinite cements, i.e. &quot;Nudelman&quot;-type cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/04" definition-exists="true" ipc-concordant="C04B28/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Portland cements</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/06" definition-exists="true" ipc-concordant="C04B28/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminous cements </text><reference><text>monolithic refractories or refractory mortars <class-ref scheme="cpc">C04B35/66</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/065" definition-exists="true" ipc-concordant="C04B28/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Calcium aluminosulfate cements, e.g. cements hydrating into ettringite</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/08" definition-exists="true" ipc-concordant="C04B28/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Slag cements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/082" definition-exists="false" ipc-concordant="C04B28/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Steelmaking slags; Converter slags</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/085" definition-exists="false" ipc-concordant="C04B28/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slags from the production of specific alloys, e.g. ferrochrome slags</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/087" definition-exists="false" ipc-concordant="C04B28/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphorus slags</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/10" definition-exists="true" ipc-concordant="C04B28/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lime cements or magnesium oxide cements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/105" definition-exists="true" ipc-concordant="C04B28/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Magnesium oxide or magnesium carbonate cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/12" definition-exists="true" ipc-concordant="C04B28/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydraulic lime</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/14" definition-exists="true" ipc-concordant="C04B28/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing calcium sulfate cements </text><CPC-specific-text><reference><text>gypsum-paper plates <class-ref scheme="cpc">E04C</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/141" definition-exists="true" ipc-concordant="C04B28/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/141</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing dihydrated gypsum before the final hardening step, e.g. forming a dihydrated gypsum product followed by a de- and rehydration step</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/142" definition-exists="false" ipc-concordant="C04B28/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing synthetic or waste calcium sulfate cements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/143" definition-exists="false" ipc-concordant="C04B28/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the synthetic calcium sulfate being phosphogypsum</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/144" definition-exists="false" ipc-concordant="C04B28/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/144</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the synthetic calcium sulfate being a flue gas desulfurization product</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/145" definition-exists="false" ipc-concordant="C04B28/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Calcium sulfate hemi-hydrate with a specific crystal form</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/146" definition-exists="false" ipc-concordant="C04B28/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>alpha-hemihydrate</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/147" definition-exists="false" ipc-concordant="C04B28/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>beta-hemihydrate</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/148" definition-exists="false" ipc-concordant="C04B28/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing calcium sulfate formed <u>in situ</u>, e.g. by the reaction of iron sulfate with lime</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/16" definition-exists="false" ipc-concordant="C04B28/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B28/16</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>containing anhydrite </text><CPC-specific-text><text>, e.g. Keene&apos;s cement</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/165" definition-exists="false" ipc-concordant="C04B28/16" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing synthetic anhydrite</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/18" definition-exists="true" ipc-concordant="C04B28/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing mixtures of the silica-lime type</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/182" definition-exists="false" ipc-concordant="C04B28/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/182</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on calcium silicate forming mixtures not containing lime or lime producing ingredients, e.g. waterglass based mixtures heated with a calcium salt</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/184" definition-exists="false" ipc-concordant="C04B28/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/184</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on an oxide other than lime</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/186" definition-exists="true" ipc-concordant="C04B28/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing formed Ca-silicates before the final hardening step</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/188" definition-exists="true" ipc-concordant="C04B28/18" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/188</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the Ca-silicates being present in the starting mixture</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/24" definition-exists="true" ipc-concordant="C04B28/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing alkyl, ammonium or metal silicates</text></title-part><title-part><text>containing silica sols </text><CPC-specific-text><reference><text>reaction mixtures resulting in mineral polymers <class-ref scheme="cpc">C04B28/006</class-ref>; polymeric reaction products of alkali metal silicates with isocyanates <class-ref scheme="cpc">C08G18/3895</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/26" definition-exists="true" ipc-concordant="C04B28/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicates of the alkali metals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/28" definition-exists="true" ipc-concordant="C04B28/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B28/28</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>containing organic polyacids, e.g. polycarboxylate cements </text><CPC-specific-text><text>, i.e. ionomeric systems</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/30" definition-exists="true" ipc-concordant="C04B28/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing magnesium cements </text><CPC-specific-text><text>or similar cements</text></CPC-specific-text><reference><text>magnesium oxide cements <class-ref scheme="cpc">C04B28/10</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/32" definition-exists="true" ipc-concordant="C04B28/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium oxychloride cements, e.g. Sorel cement</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/34" definition-exists="true" ipc-concordant="C04B28/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing cold phosphate binders</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> While using Combination Sets in this main group, the presence of a reactive or reacted oxide is indicated with symbols chosen from <class-ref scheme="cpc">C04B14/06</class-ref> and <class-ref scheme="cpc">C04B14/30</class-ref> (and subgroups), except for boron oxide ( <class-ref scheme="cpc">C04B22/0013</class-ref> ) and oxides of the alkali or alkaline-earth metals, with the exception of magnesium ( <class-ref scheme="cpc">C04B22/062</class-ref> and <class-ref scheme="cpc">C04B22/064</class-ref> ), e.g. a composition containing a mixture of phosphoric acid, AlCr phosphate and magnesium oxide will be classified in <class-ref scheme="cpc">C04B28/346</class-ref> and will be indexed with codes <class-ref scheme="cpc">C04B14/303</class-ref>, <class-ref scheme="cpc">C04B14/304</class-ref> and <class-ref scheme="cpc">C04B14/307</class-ref>. &quot;Phosphates&quot; includes monobasic and dibasic phosphates </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/342" definition-exists="false" ipc-concordant="C04B28/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/342</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the phosphate binder being present in the starting composition as a mixture of free acid and one or more reactive oxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/344" definition-exists="false" ipc-concordant="C04B28/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/344</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the phosphate binder being present in the starting composition solely as one or more phosphates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/346" definition-exists="false" ipc-concordant="C04B28/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/346</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B28/348" definition-exists="false" ipc-concordant="C04B28/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/348</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the starting mixture also containing one or more reactive oxides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B28/36" definition-exists="false" ipc-concordant="C04B28/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing sulfur, sulfides or selenium</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B28/365" definition-exists="false" ipc-concordant="C04B28/36" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B28/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing sulfides or selenium</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B30/00" definition-exists="true" ipc-concordant="C04B30/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B30/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compositions for artificial stone, not containing binders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B30/02" definition-exists="true" ipc-concordant="C04B30/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B30/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing fibrous materials</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B32/00" definition-exists="false" ipc-concordant="C04B32/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B32/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Artificial stone not provided for in other groups of this subclass</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B32/005" definition-exists="true" ipc-concordant="C04B32/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B32/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Artificial stone obtained by melting at least part of the composition, e.g. metal </text><reference><text><class-ref scheme="cpc">C04B28/36</class-ref> and <class-ref scheme="cpc">C03C</class-ref> take precedence; cast stone from molten slag <class-ref scheme="cpc">C04B5/00</class-ref>; artificial stone obtained by melting the polymeric ingredient of the composition <class-ref scheme="cpc">C04B26/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B32/02" definition-exists="true" ipc-concordant="C04B32/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B32/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with reinforcements </text><CPC-specific-text><reference><text>contains no documents; reinforcing elements <class-ref scheme="cpc">E04C5/00</class-ref></text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This group is only used for indexing purposes</note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C04B33/00" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ceramics</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B33/00" definition-exists="true" ipc-concordant="C04B33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>C04B33/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Clay-wares </text><reference><text>monolithic refractories or refractory mortars <class-ref scheme="cpc">C04B35/66</class-ref>; porous products <class-ref scheme="cpc">C04B38/00</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph><CPC-specific-note>In groups <class-ref scheme="cpc">C04B33/00</class-ref> - <class-ref scheme="cpc">C04B33/36</class-ref>, the indexing codes of groups <class-ref scheme="cpc">C04B2235/00</class-ref> - <class-ref scheme="cpc">C04B2235/9646</class-ref> are used (with the exception of <class-ref scheme="cpc">C04B2235/349</class-ref>, <class-ref scheme="cpc">C04B2235/6027</class-ref>, <class-ref scheme="cpc">C04B2235/604</class-ref> and <class-ref scheme="cpc">C04B2235/9661</class-ref>) to identify aspects relating to ceramic starting mixtures and sintered ceramic products.</CPC-specific-note></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B33/02" definition-exists="true" ipc-concordant="C04B33/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparing or treating the raw materials individually or as batches</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B33/025" definition-exists="true" ipc-concordant="C04B33/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mixtures of materials with different sizes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B33/04" definition-exists="true" ipc-concordant="C04B33/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B33/04</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Clay</text></title-part><title-part><text>Kaolin</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B33/06" definition-exists="true" ipc-concordant="C04B33/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rendering lime harmless</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B33/08" definition-exists="true" ipc-concordant="C04B33/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preventing efflorescence</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B33/10" definition-exists="true" ipc-concordant="C04B33/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Eliminating iron or lime</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B33/13" definition-exists="true" ipc-concordant="C04B33/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B33/13</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Compounding ingredients </text><reference><text><class-ref scheme="cpc">C04B33/36</class-ref>, <class-ref scheme="cpc">C04B35/71</class-ref> take precedence </text><CPC-specific-text><text>; pigments for ceramics <class-ref scheme="cpc">C09C1/0009</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B33/1305" definition-exists="true" ipc-concordant="C04B33/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organic additives</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B33/131" definition-exists="true" ipc-concordant="C04B33/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/131</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Inorganic additives</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B33/1315" definition-exists="true" ipc-concordant="C04B33/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1315</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-ceramic binders</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B33/132" definition-exists="true" ipc-concordant="C04B33/132" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>C04B33/132</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Waste materials</text></title-part><title-part><text>Refuse</text></title-part><title-part><CPC-specific-text><text>Residues</text></CPC-specific-text><reference><text><class-ref scheme="cpc">C04B33/16</class-ref> takes precedence; </text><CPC-specific-text><text>waste glass <class-ref scheme="cpc">C04B33/13</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B33/1321" definition-exists="true" ipc-concordant="C04B33/132" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1321</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste slurries, e.g. harbour sludge, industrial muds </text><reference><text>slurries of specific well-defined waste streams, e.g. phosphate muds, other than red mud, <class-ref scheme="cpc">C04B33/132</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B33/1322" definition-exists="true" ipc-concordant="C04B33/132" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1322</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Red mud</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B33/1324" definition-exists="true" ipc-concordant="C04B33/132" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1324</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Recycled material, e.g. tile dust, stone waste, spent refractory material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B33/1325" definition-exists="true" ipc-concordant="C04B33/132" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1325</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hazardous waste other than combustion residues </text><reference><text>dredging sludge <class-ref scheme="cpc">C04B33/1321</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B33/1327" definition-exists="true" ipc-concordant="C04B33/132" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1327</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing heavy metals</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B33/1328" definition-exists="true" ipc-concordant="C04B33/132" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1328</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>without additional clay</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B33/135" definition-exists="true" ipc-concordant="C04B33/135" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-01-01" status="published"><classification-symbol>C04B33/135</classification-symbol><class-title date-revised="2017-01-01"><title-part><text>Combustion residues, e.g. fly ash, incineration waste </text><CPC-specific-text><reference><text>silica fume <class-ref scheme="cpc">C04B33/132</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B33/1352" definition-exists="true" ipc-concordant="C04B33/135" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1352</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fuel ashes, e.g. fly ash</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B33/1355" definition-exists="true" ipc-concordant="C04B33/135" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1355</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Incineration residues</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B33/1357" definition-exists="true" ipc-concordant="C04B33/135" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/1357</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sewage sludge ash or slag</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B33/138" definition-exists="true" ipc-concordant="C04B33/138" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/138</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from metallurgical processes, e.g. slag, furnace dust, galvanic waste</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B33/14" definition-exists="true" ipc-concordant="C04B33/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Colouring matters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B33/16" definition-exists="true" ipc-concordant="C04B33/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lean materials, e.g. grog, quartz</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B33/18" definition-exists="true" ipc-concordant="C04B33/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for liquefying the batches</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B33/20" definition-exists="true" ipc-concordant="C04B33/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for dry-pressing </text><reference><text><class-ref scheme="cpc">C04B33/13</class-ref> takes precedence</text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B33/22" definition-exists="true" ipc-concordant="C04B33/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Grog products</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B33/24" definition-exists="true" ipc-concordant="C04B33/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manufacture of porcelain or white ware</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B33/26" definition-exists="true" ipc-concordant="C04B33/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of porcelain for electrical insulation</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B33/28" definition-exists="true" ipc-concordant="C04B33/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Slip casting </text><reference><text>mechanical features <class-ref scheme="cpc">B28B1/26</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B33/30" definition-exists="true" ipc-concordant="C04B33/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Drying methods</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B33/32" definition-exists="true" ipc-concordant="C04B33/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Burning methods</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B33/323" definition-exists="true" ipc-concordant="C04B33/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving melting, fusion or softening</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B33/326" definition-exists="true" ipc-concordant="C04B33/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/326</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>under pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B33/34" definition-exists="true" ipc-concordant="C04B33/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>combined with glazing</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B33/36" definition-exists="true" ipc-concordant="C04B33/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B33/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reinforced clay-wares</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B35/00" definition-exists="true" ipc-concordant="C04B35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>C04B35/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Shaped ceramic products characterised by their composition </text><CPC-specific-text><reference><text>porous ceramic products <class-ref scheme="cpc">C04B38/00</class-ref>; ceramic articles characterised by particular shape, <u>see</u> the relevant classes, e.g. linings for casting ladles, tundishes, cups or the like <class-ref scheme="cpc">B22D41/02</class-ref>; ceramic substrates for microelectronic semi-conductors <class-ref scheme="cpc">H01L23/15</class-ref></text></reference></CPC-specific-text></title-part><title-part><text>Ceramics compositions </text><reference><text>containing free metal bonded to carbides, diamond, oxides, borides, nitrides, silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides other than as macroscopic reinforcing agents <class-ref scheme="cpc">C22C</class-ref>; </text><CPC-specific-text><text>shaping of ceramics <class-ref scheme="cpc">B28B</class-ref></text></CPC-specific-text></reference></title-part><title-part><text>Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products </text><CPC-specific-text><reference><text>chemical preparation of powders of inorganic compounds <class-ref scheme="cpc">C01</class-ref>; infiltration of sintered ceramic preforms with molten metal <class-ref scheme="cpc">C04B41/51</class-ref></text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this group, in the absence of an indication to the contrary, compositions are classified according to the constituent present in the highest proportion by weight.</note-paragraph><note-paragraph>In this group, magnesium is considered as an alkaline earth metal.</note-paragraph><note-paragraph>In this group, a composite is considered as a sintered material containing more than one phase, where the secondary phases are not resulting from sintering aids</note-paragraph><note-paragraph>In this group, fine ceramics are considered as products having a polycrystalline, fine-grained microstructure, e.g. of dimensions below 100 micrometers.</note-paragraph><note-paragraph>The production of ceramic powder is classified in this group in so far as it relates to the preparation of powder with specific characteristics.</note-paragraph><note-paragraph> In groups <class-ref scheme="cpc">C04B35/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B35/83</class-ref>, from 01-01-2005 onwards, the indexing codes of groups <class-ref scheme="cpc">C04B2235/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/9692</class-ref> are used to identify aspects relating to ceramic starting mixtures and sintered ceramic products </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B35/01" definition-exists="true" ipc-concordant="C04B35/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>C04B35/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on oxide ceramics</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/013" definition-exists="true" ipc-concordant="C04B35/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/013</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing carbon </text><reference><text><class-ref scheme="cpc">C04B35/103</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/016" definition-exists="true" ipc-concordant="C04B35/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on manganites</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/03" definition-exists="true" ipc-concordant="C04B35/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/04" definition-exists="true" ipc-concordant="C04B35/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on magnesium oxide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/043" definition-exists="true" ipc-concordant="C04B35/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractories from grain sized mixtures</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/0435" definition-exists="true" ipc-concordant="C04B35/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/0435</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing refractory metal compounds other than chromium oxide or chrome ore</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/047" definition-exists="true" ipc-concordant="C04B35/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing chromium oxide or chrome ore</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/0473" definition-exists="true" ipc-concordant="C04B35/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/0473</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained from fused grains</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/0476" definition-exists="true" ipc-concordant="C04B35/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/0476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained from prereacted sintered grains (&quot;simultaneous sinter&quot;)</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/05" definition-exists="true" ipc-concordant="C04B35/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractories by fusion casting</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/051" definition-exists="true" ipc-concordant="C04B35/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/051</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing chromium oxide or chrome ore</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/053" definition-exists="true" ipc-concordant="C04B35/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fine ceramics</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/057" definition-exists="true" ipc-concordant="C04B35/057" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/057</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on calcium oxide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/06" definition-exists="true" ipc-concordant="C04B35/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on oxide mixtures derived from dolomite</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/08" definition-exists="true" ipc-concordant="C04B35/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on beryllium oxide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/10" definition-exists="true" ipc-concordant="C04B35/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on aluminium oxide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/101" definition-exists="true" ipc-concordant="C04B35/101" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractories from grain sized mixtures</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/1015" definition-exists="true" ipc-concordant="C04B35/101" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B35/1015</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>containing refractory metal compounds other than those covered by <class-ref scheme="cpc">C04B35/103</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B35/106</class-ref></text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/103" definition-exists="true" ipc-concordant="C04B35/103" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing non-oxide refractory materials, e.g. carbon </text><reference><text><class-ref scheme="cpc">C04B35/106</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/105" definition-exists="true" ipc-concordant="C04B35/105" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing chromium oxide or chrome ore</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/106" definition-exists="true" ipc-concordant="C04B35/106" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing zirconium oxide or zircon (ZrSiO<sub>4</sub>)</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/107" definition-exists="true" ipc-concordant="C04B35/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractories by fusion casting</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/109" definition-exists="true" ipc-concordant="C04B35/109" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/109</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing zirconium oxide or zircon (ZrSiO<sub>4</sub>)</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/111" definition-exists="true" ipc-concordant="C04B35/111" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/111</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fine ceramics</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/1115" definition-exists="true" ipc-concordant="C04B35/111" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/1115</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets </text><reference><text>abrasives <class-ref scheme="cpc">C09K3/14</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/113" definition-exists="true" ipc-concordant="C04B35/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/113</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on beta-aluminium oxide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/115" definition-exists="true" ipc-concordant="C04B35/115" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>C04B35/115</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>Translucent or transparent products</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/117" definition-exists="true" ipc-concordant="C04B35/117" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/117</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Composites</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/119" definition-exists="true" ipc-concordant="C04B35/119" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/119</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with zirconium oxide</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/12" definition-exists="true" ipc-concordant="C04B35/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on chromium oxide </text><reference><text><class-ref scheme="cpc">C04B35/047</class-ref> and <class-ref scheme="cpc">C04B35/105</class-ref> take precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/14" definition-exists="true" ipc-concordant="C04B35/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on silica</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/16" definition-exists="true" ipc-concordant="C04B35/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on silicates other than clay </text><CPC-specific-text><reference><text>zircon <class-ref scheme="cpc">C04B35/48</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/18" definition-exists="true" ipc-concordant="C04B35/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>rich in aluminium oxide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/185" definition-exists="true" ipc-concordant="C04B35/185" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mullite </text><CPC-specific-text><text>3Al2O3-2SiO2</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/19" definition-exists="true" ipc-concordant="C04B35/19" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/19</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkali metal aluminosilicates, e.g. spodumene</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/195" definition-exists="true" ipc-concordant="C04B35/195" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/195</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkaline earth aluminosilicates, e.g. cordierite </text><CPC-specific-text><text>or anorthite</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/20" definition-exists="true" ipc-concordant="C04B35/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B35/20</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>rich in magnesium oxide </text><CPC-specific-text><text>, e.g. forsterite </text><reference><text><class-ref scheme="cpc">C04B35/195</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/22" definition-exists="true" ipc-concordant="C04B35/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B35/22</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>rich in calcium oxide </text><CPC-specific-text><text>, e.g. wollastonite </text><reference><text><class-ref scheme="cpc">C04B35/195</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/26" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on ferrites</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/2608" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2608</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/2616" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2616</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing lithium</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/2625" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2625</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing magnesium</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/2633" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2633</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing barium, strontium or calcium</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/2641" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2641</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Compositions containing one or more ferrites of the group comprising rare earth metals and one or more ferrites of the group comprising alkali metals, alkaline earth metals or lead</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/265" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/2658" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2658</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/2666" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2666</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other ferrites containing nickel, copper or cobalt</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/2675" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2675</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other ferrites containing rare earth metals, e.g. rare earth ferrite garnets</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/2683" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2683</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other ferrites containing alkaline earth metals or lead</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/2691" definition-exists="true" ipc-concordant="C04B35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/2691</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other ferrites containing alkaline metals</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/42" definition-exists="true" ipc-concordant="C04B35/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on chromites </text><reference><text><class-ref scheme="cpc">C04B35/047</class-ref> and <class-ref scheme="cpc">C04B35/105</class-ref> take precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/44" definition-exists="true" ipc-concordant="C04B35/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on aluminates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/443" definition-exists="true" ipc-concordant="C04B35/443" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/443</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium aluminate spinel</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/447" definition-exists="true" ipc-concordant="C04B35/447" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B35/447</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>based on phosphates </text><CPC-specific-text><text>, e.g. hydroxyapatite</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/45" definition-exists="true" ipc-concordant="C04B35/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B35/45</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on copper oxide or solid solutions thereof with other oxides</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In groups <class-ref scheme="cpc">C04B35/4504</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B35/4525</class-ref> an invention is classified in the last appropriate place </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/4504" definition-exists="true" ipc-concordant="C04B35/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/4504</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing rare earth oxides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/4508" definition-exists="true" ipc-concordant="C04B35/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/4508</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Type 1-2-3</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/4512" definition-exists="true" ipc-concordant="C04B35/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/4512</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing thallium oxide</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/4517" definition-exists="true" ipc-concordant="C04B35/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/4517</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>also containing lead oxide</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/4521" definition-exists="true" ipc-concordant="C04B35/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/4521</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing bismuth oxide</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/4525" definition-exists="true" ipc-concordant="C04B35/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/4525</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>also containing lead oxide</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/453" definition-exists="true" ipc-concordant="C04B35/453" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/453</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on zinc, tin, or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/457" definition-exists="true" ipc-concordant="C04B35/457" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/457</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on tin oxides or stannates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/46" definition-exists="true" ipc-concordant="C04B35/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B35/46</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>based on titanium oxides or titanates </text><reference><text>containing also zirconium or hafnium oxides, zirconates or hafnates <class-ref scheme="cpc">C04B35/49</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/462" definition-exists="true" ipc-concordant="C04B35/462" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/462</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on titanates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/465" definition-exists="true" ipc-concordant="C04B35/465" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/465</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on alkaline earth metal titanates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/468" definition-exists="true" ipc-concordant="C04B35/468" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/468</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on barium titanates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/4682" definition-exists="true" ipc-concordant="C04B35/468" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>C04B35/4682</classification-symbol><class-title date-revised="2018-01-01"><title-part><CPC-specific-text><text>based on BaTiO<sub>3</sub> perovskite phase</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/4684" definition-exists="true" ipc-concordant="C04B35/468" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/4684</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing lead compounds </text><reference><text><class-ref scheme="cpc">C04B35/472</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/4686" definition-exists="true" ipc-concordant="C04B35/468" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>C04B35/4686</classification-symbol><class-title date-revised="2018-01-01"><title-part><CPC-specific-text><text>based on phases other than BaTiO<sub>3</sub> perovskite phase</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/4688" definition-exists="true" ipc-concordant="C04B35/468" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/4688</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing lead compounds </text><reference><text><class-ref scheme="cpc">C04B35/472</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/47" definition-exists="true" ipc-concordant="C04B35/47" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/47</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on strontium titanates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/472" definition-exists="true" ipc-concordant="C04B35/472" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/472</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on lead titanates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/475" definition-exists="true" ipc-concordant="C04B35/475" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/475</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on bismuth titanates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/478" definition-exists="true" ipc-concordant="C04B35/478" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/478</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on aluminium titanates</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/48" definition-exists="true" ipc-concordant="C04B35/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on zirconium or hafnium oxides, zirconates, </text><CPC-specific-text><text>zircon</text></CPC-specific-text><text> or hafnates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/481" definition-exists="true" ipc-concordant="C04B35/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/481</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing silicon, e.g. zircon</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/482" definition-exists="true" ipc-concordant="C04B35/482" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/482</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractories from grain sized mixtures</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/484" definition-exists="true" ipc-concordant="C04B35/484" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/484</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractories by fusion casting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/486" definition-exists="true" ipc-concordant="C04B35/486" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/486</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fine ceramics</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/488" definition-exists="true" ipc-concordant="C04B35/488" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/488</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Composites</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/4885" definition-exists="true" ipc-concordant="C04B35/488" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/4885</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with aluminium oxide</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/49" definition-exists="true" ipc-concordant="C04B35/49" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/49</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing also titanium oxides or titanates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/491" definition-exists="true" ipc-concordant="C04B35/491" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B35/491</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>based on lead zirconates and lead titanates </text><CPC-specific-text><text>, e.g. PZT</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/493" definition-exists="true" ipc-concordant="C04B35/493" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/493</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing also other lead compounds</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/495" definition-exists="true" ipc-concordant="C04B35/495" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/495</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/497" definition-exists="true" ipc-concordant="C04B35/497" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/497</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on solid solutions with lead oxides</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/499" definition-exists="true" ipc-concordant="C04B35/499" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/499</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing also titanates</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B35/50" definition-exists="true" ipc-concordant="C04B35/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>C04B35/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on rare-earth compounds </text><CPC-specific-text><reference><text>non-oxide rare earth compounds <class-ref scheme="cpc">C04B35/5156</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/505" definition-exists="true" ipc-concordant="C04B35/505" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/505</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on yttrium oxide</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B35/51" definition-exists="true" ipc-concordant="C04B35/51" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>C04B35/51</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>based on compounds of actinides </text><reference><CPC-specific-text><text>non-oxide actinide compounds <class-ref scheme="cpc">C04B35/5158</class-ref>;</text></CPC-specific-text><text> nuclear fuel materials <class-ref scheme="cpc">G21C3/62</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B35/515" definition-exists="true" ipc-concordant="C04B35/515" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>C04B35/515</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on non-oxide ceramics</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/5152" definition-exists="true" ipc-concordant="C04B35/515" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5152</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on halogenides other than fluorides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/5154" definition-exists="true" ipc-concordant="C04B35/515" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5154</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on phosphides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/5156" definition-exists="true" ipc-concordant="C04B35/515" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5156</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on rare earth compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/5158" definition-exists="true" ipc-concordant="C04B35/515" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5158</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on actinide compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/52" definition-exists="true" ipc-concordant="C04B35/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on carbon, e.g. graphite</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/521" definition-exists="true" ipc-concordant="C04B35/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/521</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained by impregnation of carbon products with a carbonisable material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/522" definition-exists="true" ipc-concordant="C04B35/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/522</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Graphite </text><reference><text><class-ref scheme="cpc">C04B35/536</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/524" definition-exists="true" ipc-concordant="C04B35/524" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/524</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained from polymer precursors, e.g. glass-like carbon material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/528" definition-exists="true" ipc-concordant="C04B35/528" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/528</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained from carbonaceous particles with or without other non-organic components</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/532" definition-exists="true" ipc-concordant="C04B35/532" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/532</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing a carbonisable binder</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/536" definition-exists="true" ipc-concordant="C04B35/536" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/536</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on expanded graphite </text><CPC-specific-text><text>or complexed graphite</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/547" definition-exists="true" ipc-concordant="C04B35/547" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/547</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on sulfides or selenides </text><CPC-specific-text><text>or tellurides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/553" definition-exists="true" ipc-concordant="C04B35/553" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/553</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on fluorides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/56" definition-exists="true" ipc-concordant="C04B35/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on carbides </text><CPC-specific-text><text>or oxycarbides </text><reference><text>containing free metal binder <class-ref scheme="cpc">C22C29/00</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/5603" definition-exists="true" ipc-concordant="C04B35/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5603</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a well-defined oxygen content, e.g. oxycarbides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/5607" definition-exists="true" ipc-concordant="C04B35/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5607</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on refractory metal carbides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/5611" definition-exists="true" ipc-concordant="C04B35/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5611</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on titanium carbides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/5615" definition-exists="true" ipc-concordant="C04B35/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5615</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on titanium silicon carbides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/5618" definition-exists="true" ipc-concordant="C04B35/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5618</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on titanium aluminium carbides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/5622" definition-exists="true" ipc-concordant="C04B35/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5622</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on zirconium or hafnium carbides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/5626" definition-exists="true" ipc-concordant="C04B35/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5626</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on tungsten carbides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/563" definition-exists="true" ipc-concordant="C04B35/563" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/563</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on boron carbide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/565" definition-exists="true" ipc-concordant="C04B35/565" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/565</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on silicon carbide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/571" definition-exists="true" ipc-concordant="C04B35/571" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/571</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained from </text><CPC-specific-text><text>Si-containing</text></CPC-specific-text><text> polymer precursors </text><CPC-specific-text><text>or organosilicon monomers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/573" definition-exists="true" ipc-concordant="C04B35/573" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/573</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained by reaction sintering </text><CPC-specific-text><text>or recrystallisation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/575" definition-exists="true" ipc-concordant="C04B35/575" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/575</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained by pressure sintering</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/5755" definition-exists="true" ipc-concordant="C04B35/575" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5755</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained by gas pressure sintering</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/58" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B35/58</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>based on borides, nitrides, </text><CPC-specific-text><text>i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides</text></CPC-specific-text><text> or silicides </text><CPC-specific-text><reference><text>containing free binder metal <class-ref scheme="cpc">C22C29/00</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/58007" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on refractory metal nitrides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/58014" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58014</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on titanium nitrides, e.g. TiAlON</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/58021" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on titanium carbonitrides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/58028" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on zirconium or hafnium nitrides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/58035" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on zirconium or hafnium carbonitrides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/58042" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on iron group metals nitrides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/5805" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5805</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on borides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/58057" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58057</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on magnesium boride, e.g. MgB<sub>2</sub></text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/58064" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on refractory borides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/58071" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58071</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on titanium borides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/58078" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58078</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on zirconium or hafnium borides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/58085" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on silicides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/58092" definition-exists="true" ipc-concordant="C04B35/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/58092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on refractory metal silicides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/581" definition-exists="true" ipc-concordant="C04B35/581" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/581</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on aluminium nitride</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/583" definition-exists="true" ipc-concordant="C04B35/583" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/583</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on boron nitride</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/5831" definition-exists="true" ipc-concordant="C04B35/5831" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5831</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on cubic boron nitrides </text><CPC-specific-text><text>or Wurtzitic boron nitrides, including crystal structure transformation of powder</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/584" definition-exists="true" ipc-concordant="C04B35/584" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/584</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on silicon nitride</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/587" definition-exists="true" ipc-concordant="C04B35/587" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/587</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fine ceramics</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/589" definition-exists="true" ipc-concordant="C04B35/589" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/589</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained from </text><CPC-specific-text><text>Si-containing</text></CPC-specific-text><text> polymer precursors </text><CPC-specific-text><text>or organosilicon monomers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/591" definition-exists="true" ipc-concordant="C04B35/591" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/591</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained by reaction sintering</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/593" definition-exists="true" ipc-concordant="C04B35/593" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/593</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>obtained by pressure sintering</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/5935" definition-exists="true" ipc-concordant="C04B35/593" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/5935</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained by gas pressure sintering</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/597" definition-exists="true" ipc-concordant="C04B35/597" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/597</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on silicon oxynitride, </text><CPC-specific-text><text>e.g. SIALONS</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B35/622" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B35/622</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming processes</text></title-part><title-part><text>Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In groups <class-ref scheme="cpc">C04B35/622</class-ref> and subgroups indexing codes are given for aspects relating to the preparation, properties or mechanical treatment or to heat treatments of green bodies. The codes are chosen from <class-ref scheme="cpc">C04B2235/60</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/668</class-ref></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/62204" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62204</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using waste materials or refuse </text><reference><text>clay-wares containing waste materials <class-ref scheme="cpc">C04B33/132</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/62209" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62209</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using woody material, remaining in the ceramic products </text><reference><text>to obtain porous material by burning out <class-ref scheme="cpc">C04B38/06</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/62213" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62213</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using rice material, e.g. bran or hulls or husks</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/62218" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62218</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtaining ceramic films, e.g. by using temporary supports</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/62222" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtaining ceramic coatings </text><reference><text>coating of mortars, concrete, artificial or natural stone or ceramics <class-ref scheme="cpc">C04B41/45</class-ref>; laminated ceramic products <class-ref scheme="cpc">B32B18/00</class-ref>; coating metallic materials <class-ref scheme="cpc">C23</class-ref>; coating of glass <class-ref scheme="cpc">C03C17/00</class-ref>, applying ceramic coatings on silicon for semi-conductor purposes <class-ref scheme="cpc">H01L</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/62227" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62227</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtaining fibres</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/62231" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62231</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on oxide ceramics</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/62236" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62236</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibres based on aluminium oxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/6224" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6224</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibres based on silica</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/62245" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62245</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>rich in aluminium oxide</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/6225" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibres based on zirconium oxide, e.g. zirconates such as PZT</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/62254" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62254</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibres based on copper oxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/62259" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62259</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibres based on titanium oxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/62263" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62263</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibres based on magnesium oxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/62268" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62268</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibres based on metal phosphorus oxides, e.g. phosphates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/62272" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B35/62272</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>based on non-oxide ceramics </text><reference><text>carbon nanotubes <class-ref scheme="cpc">C01B32/15</class-ref>; carbon fibers <class-ref scheme="cpc">D01F9/12</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/62277" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62277</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibres based on carbides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/62281" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62281</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on silicon carbide </text><reference><text><class-ref scheme="cpc">C04B35/571</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/62286" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fibres based on nitrides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/6229" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6229</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on boron nitride</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/62295" definition-exists="true" ipc-concordant="C04B35/622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62295</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on silicon nitride </text><reference><text><class-ref scheme="cpc">C04B35/589</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/624" definition-exists="true" ipc-concordant="C04B35/624" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/624</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sol-gel processing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/626" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>C04B35/626</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparing or treating the powders individually or as batches </text><CPC-specific-text><reference><text>pigments for ceramics <class-ref scheme="cpc">C09C1/0009</class-ref></text></reference><text>; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section <class-ref scheme="cpc">B</class-ref></text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/62605" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62605</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Treating the starting powders individually or as mixtures</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/6261" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6261</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Milling</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/62615" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62615</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>High energy or reactive ball milling</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/6262" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6262</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of calcined, sintered clinker or ceramics</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/62625" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62625</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Wet mixtures</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/6263" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6263</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by their solids loadings, i.e. the percentage of solids</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/62635" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62635</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mixing details</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/6264" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6264</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mixing media, e.g. organic solvents</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/62645" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62645</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Thermal treatment of powders or mixtures thereof other than sintering</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/6265" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving reduction or oxidation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/62655" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62655</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/6266" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Humidity controlled drying</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/62665" definition-exists="true" ipc-concordant="C04B35/626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/62665</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flame, plasma or melting treatment</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/63" definition-exists="true" ipc-concordant="C04B35/63" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B35/63</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>using additives specially adapted for forming the products </text><CPC-specific-text><text>, e.g.. binder binders</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/6303" definition-exists="true" ipc-concordant="C04B35/63" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6303</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Inorganic additives</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/6306" definition-exists="true" ipc-concordant="C04B35/63" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6306</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Binders based on phosphoric acids or phosphates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/6309" definition-exists="true" ipc-concordant="C04B35/63" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6309</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aluminium phosphates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/6313" definition-exists="true" ipc-concordant="C04B35/63" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6313</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alkali metal or alkaline earth metal phosphates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/6316" definition-exists="true" ipc-concordant="C04B35/63" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6316</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Binders based on silicon compounds</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/632" definition-exists="true" ipc-concordant="C04B35/632" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/632</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Organic additives</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/6325" definition-exists="true" ipc-concordant="C04B35/632" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6325</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>based on organo-metallic compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/634" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/634</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Polymers </text><reference><text><class-ref scheme="cpc">C04B35/636</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/63404" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63404</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained by reactions only involving carbon-to-carbon unsaturated bonds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63408" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63408</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyalkenes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63412" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63412</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coumarone polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63416" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63416</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyvinylalcohols [PVA]; Polyvinylacetates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/6342" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6342</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyvinylacetals, e.g. polyvinylbutyral [PVB]</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63424" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63424</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyacrylates; Polymethacrylates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63428" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63428</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of ethylenically unsaturated dicarboxylic acid anhydride polymers, e.g. maleic anhydride copolymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63432" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63432</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polystyrenes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63436" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63436</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Halogen-containing polymers, e.g. PVC</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/6344" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6344</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Copolymers containing at least three different monomers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63444" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63444</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nitrogen-containing polymers, e.g. polyacrylamides, polyacrylonitriles, polyvinylpyrrolidone [PVP], polyethylenimine [PEI]</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/63448" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63448</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63452" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63452</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyepoxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63456" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63456</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyurethanes; Polyisocyanates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/6346" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6346</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyesters</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63464" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63464</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polycarbonates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63468" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63468</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyamides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63472" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63472</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Condensation polymers of aldehydes or ketones</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this group the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>&quot;aldehydes&quot; also covers other organic compounds reacting as aldehydes, e.g. glyoxylic acid </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C04B35/63476" definition-exists="false" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phenol-formaldehyde condensation polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C04B35/6348" definition-exists="false" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6348</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Melamine-formaldehyde condensation polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C04B35/63484" definition-exists="false" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63484</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Urea-formaldehyde condensation polymers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B35/63488" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63488</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyethers, e.g. alkylphenol polyglycolether, polyethylene glycol [PEG], polyethylene oxide [PEO]</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/63492" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63492</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Natural resins, e.g. rosin</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/63496" definition-exists="true" ipc-concordant="C04B35/634" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/63496</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bituminous materials, e.g. tar, pitch</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B35/636" definition-exists="true" ipc-concordant="C04B35/636" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/636</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Polysaccharides or derivatives thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B35/6365" definition-exists="true" ipc-concordant="C04B35/636" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6365</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cellulose or derivatives thereof</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/638" definition-exists="true" ipc-concordant="C04B35/638" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/638</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Removal thereof</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/64" definition-exists="true" ipc-concordant="C04B35/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B35/64</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Burning or sintering processes </text><reference><text><class-ref scheme="cpc">C04B33/32</class-ref> takes precedence </text><CPC-specific-text><text>; powder metallurgy <class-ref scheme="cpc">B22F</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/645" definition-exists="true" ipc-concordant="C04B35/645" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/645</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure sintering</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/6455" definition-exists="true" ipc-concordant="C04B35/645" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/6455</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hot isostatic pressing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/65" definition-exists="true" ipc-concordant="C04B35/65" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/65</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reaction sintering of free metal- or free silicon-containing compositions </text><CPC-specific-text><reference><text><class-ref scheme="cpc">C04B35/573</class-ref>, <class-ref scheme="cpc">C04B35/591</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/651" definition-exists="true" ipc-concordant="C04B35/65" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/651</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Thermite type sintering, e.g. combustion sintering</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/652" definition-exists="true" ipc-concordant="C04B35/65" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/652</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Directional oxidation or solidification, e.g. Lanxide process</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/653" definition-exists="true" ipc-concordant="C04B35/653" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/653</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Processes involving a melting step</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/657" definition-exists="true" ipc-concordant="C04B35/657" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/657</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for manufacturing refractories </text><reference><text><class-ref scheme="cpc">C04B35/05</class-ref>, <class-ref scheme="cpc">C04B35/107</class-ref>, <class-ref scheme="cpc">C04B35/484</class-ref> take precedence</text></reference></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B35/66" definition-exists="true" ipc-concordant="C04B35/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monolithic refractories or refractory mortars, including those whether or not containing clay </text><CPC-specific-text><reference><text>making or repairing of linings <class-ref scheme="cpc">F27D1/16</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B35/71" definition-exists="true" ipc-concordant="C04B35/71" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B35/71</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Ceramic products containing macroscopic reinforcing agents </text><reference><text><class-ref scheme="cpc">C04B35/66</class-ref> takes precedence </text><CPC-specific-text><text>; infiltration of a porous ceramic matrix with a material forming a non-ceramic phase <class-ref scheme="cpc">C04B41/00</class-ref>, reaction infiltration with Si in order to form SiC <class-ref scheme="cpc">C04B35/573</class-ref>, in order to form Si<sub>3</sub>N<sub>4</sub> <class-ref scheme="cpc">C04B35/591</class-ref></text></CPC-specific-text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In groups <class-ref scheme="cpc">C04B35/71</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B35/83</class-ref> the composition of the ceramic products is also classified in groups <class-ref scheme="cpc">C04B35/01</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B35/597</class-ref></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/74" definition-exists="true" ipc-concordant="C04B35/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing shaped metallic materials</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/76" definition-exists="true" ipc-concordant="C04B35/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fibres, filaments, whiskers, platelets, or the like</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B35/78" definition-exists="true" ipc-concordant="C04B35/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing non-metallic materials</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B35/80" definition-exists="true" ipc-concordant="C04B35/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>C04B35/80</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Fibres, filaments, whiskers, platelets, or the like</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/82" definition-exists="true" ipc-concordant="C04B35/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Asbestos</text></title-part><title-part><text>Glass</text></title-part><title-part><text>Fused silica</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B35/83" definition-exists="true" ipc-concordant="C04B35/83" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B35/83</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon fibres in a carbon matrix</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>The products covered by this group are usually referred to as &quot;carbon-carbon composites&quot;.</note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B37/00" definition-exists="true" ipc-concordant="C04B37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C04B37/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Joining burned ceramic articles with other burned ceramic articles or other articles by heating </text><CPC-specific-text><reference><text>soldering and welding materials <class-ref scheme="cpc">B23K35/24</class-ref>; laminated products <class-ref scheme="cpc">B32B</class-ref>, <class-ref scheme="cpc">E04C</class-ref></text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph><CPC-specific-note>In groups <class-ref scheme="cpc">C04B37/00</class-ref> - <class-ref scheme="cpc">C04B37/04</class-ref> features relating to interlayers, additional compositional information or further processing are indexed with codes chosen from <class-ref scheme="cpc">C04B2237/00</class-ref> - <class-ref scheme="cpc">C04B2237/88</class-ref>.</CPC-specific-note></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B37/001" definition-exists="true" ipc-concordant="C04B37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>directly with other burned ceramic articles</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B37/003" definition-exists="true" ipc-concordant="C04B37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B37/005" definition-exists="false" ipc-concordant="C04B37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of glass or ceramic material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B37/006" definition-exists="false" ipc-concordant="C04B37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of metals or metal salts</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B37/008" definition-exists="true" ipc-concordant="C04B37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of an interlayer consisting of an organic adhesive, e.g. phenol resin or pitch</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B37/02" definition-exists="true" ipc-concordant="C04B37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with metallic articles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B37/021" definition-exists="true" ipc-concordant="C04B37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in a direct manner, e.g. direct copper bonding [DCB]</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B37/023" definition-exists="true" ipc-concordant="C04B37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the interlayer used </text><reference><text><class-ref scheme="cpc">C04B37/028</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B37/025" definition-exists="false" ipc-concordant="C04B37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of glass or ceramic material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B37/026" definition-exists="false" ipc-concordant="C04B37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of metals or metal salts</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B37/028" definition-exists="true" ipc-concordant="C04B37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of an interlayer consisting of an organic adhesive, e.g. phenol resin or pitch</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B37/04" definition-exists="true" ipc-concordant="C04B37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>C04B37/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with articles made from glass</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B37/042" definition-exists="true" ipc-concordant="C04B37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in a direct manner</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B37/045" definition-exists="true" ipc-concordant="C04B37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the interlayer used </text><reference><text><class-ref scheme="cpc">C04B37/047</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B37/047" definition-exists="true" ipc-concordant="C04B37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B37/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of an interlayer consisting of an organic adhesive, e.g. phenol resin or pitch</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B38/00" definition-exists="true" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C04B38/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Porous mortars, concrete, artificial stone or ceramic ware</text></title-part><title-part><text>Preparation thereof </text><reference><text>treating slag with gases or gas generating material <class-ref scheme="cpc">C04B5/06</class-ref> </text><CPC-specific-text><text>; expanded graphite <class-ref scheme="cpc">C04B35/536</class-ref></text></CPC-specific-text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Porous mortars, concrete, artificial stone or ceramic ware characterised by the ingredients or compositions are also classified in groups <class-ref scheme="cpc">C04B2/00</class-ref> - <class-ref scheme="cpc">C04B35/00</class-ref>.</note-paragraph><note-paragraph><CPC-specific-note>Porous materials based on fibres, i.e. materials where the porosity is due to the spaces between the fibres, are not classified in this maingroup, but in one or more of the other relevant maingroups of this subclass, e.g. in <class-ref scheme="cpc">C04B30/02</class-ref>.</CPC-specific-note></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/0003" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing continuous channels, e.g. of the &quot;dead-end&quot; type or obtained by pushing bars in the green ceramic product </text><reference><text><class-ref scheme="cpc">B28B</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/0006" definition-exists="true" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B38/0006</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Honeycomb structures </text><reference><text>from one or more corrugated sheets by winding or stacking <class-ref scheme="cpc">C04B38/0083</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0009" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by features relating to the cell walls, e.g. wall thickness or distribution of pores in the walls</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0012" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0012</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the material used for sealing or plugging (some of) the channels of the honeycombs</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0016" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>assembled from subunits</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B38/0019" definition-exists="true" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0019</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the material used for joining separate subunits</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph><CPC-specific-note> When classifying in group <class-ref scheme="cpc">C04B38/0019</class-ref>, classification is also made in <class-ref scheme="cpc">C04B28/00</class-ref> or <class-ref scheme="cpc">C04B37/00</class-ref> to give detailed information about the composition of the joining material </CPC-specific-note></note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/0022" definition-exists="true" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0025" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>starting from inorganic materials only, e.g. metal foam; Lanxide type products</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0029" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0029</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Porous deposits from the gas phase, e.g. on a temporary support</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0032" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0032</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>one of the precursor materials being a monolithic element having approximately the same dimensions as the final article, e.g. a paper sheet which after carbonisation will react with silicon to form a porous silicon carbide porous body</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0035" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by evaporation induced self-assembly</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/0038" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0038</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by superficial sintering or bonding of particulate matter</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0041" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the particulate matter having preselected particle sizes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/0045" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by a process involving the formation of a sol or a gel, e.g. sol-gel or precipitation processes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0048" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Precipitation processes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/0051" definition-exists="true" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0051</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the pore size, pore shape or kind of porosity</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0054" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B38/0054</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>the pores being microsized or nanosized</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0058" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0058</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>open porosity</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0061" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>closed porosity</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0064" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multimodal pore size distribution</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/0067" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the density of the end product</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> This group is mainly used for classification using Combination Sets in <class-ref scheme="cpc">C04B38/00</class-ref></note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/007" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the pore distribution, e.g. inhomogeneous distribution of pores</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> This group is mainly used for classification using Combination Sets in <class-ref scheme="cpc">C04B38/00</class-ref></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0074" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0074</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>expressed as porosity percentage</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0077" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0077</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Materials with a non-porous skin</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/008" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bodies obtained by assembling separate elements having such a configuration that the final product is porous or by spirally winding one or more corrugated sheets</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0083" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from one or more corrugated sheets or sheets bearing protrusions by winding or stacking</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/0087" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by generating pores in the ceramic material while in the molten state</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/009" definition-exists="true" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B38/009</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Porous or hollow ceramic granular materials, e.g. microballoons </text><reference><text><class-ref scheme="cpc">C04B18/027</class-ref>, <class-ref scheme="cpc">C04B20/002</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/0093" definition-exists="false" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other features</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0096" definition-exists="true" ipc-concordant="C04B38/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0096</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pores with coated inner walls</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/02" definition-exists="true" ipc-concordant="C04B38/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by adding chemical blowing agents</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/025" definition-exists="false" ipc-concordant="C04B38/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>generated by microorganisms</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/04" definition-exists="true" ipc-concordant="C04B38/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by dissolving-out added substances</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/045" definition-exists="false" ipc-concordant="C04B38/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the dissolved-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a prepreg obtained by bonding together dissolvable particles </text><reference><text><class-ref scheme="cpc">C04B38/0022</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/06" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by burning-out added substances </text><CPC-specific-text><text>by burning natural expanding materials or by sublimating or melting out added substances</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Documents in which the characteristic feature is the choice of meltable or sublimable material or the physical aspects of the porous body obtained are classified accordingly, and symbols <class-ref scheme="cpc">C04B38/0605</class-ref> or <class-ref scheme="cpc">C04B38/061</class-ref> are allocated in Combination Sets. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0605" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0605</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by sublimating</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/061" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by melting out</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0615" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0615</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles </text><reference><text><class-ref scheme="cpc">C04B38/0022</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B38/062" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the burned-out substance being formed <u>in situ</u>, e.g. by polymerisation of a prepolymer composition containing ceramic powder</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B38/0625" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0625</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving a foaming step of the burnable material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/063" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preparing or treating the raw materials individually or as batches</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B38/0635" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0635</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Compounding ingredients </text><reference><text><class-ref scheme="cpc">C04B38/0615</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B38/064" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Natural expanding materials, e.g. clay</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B38/0645" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0645</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Burnable, meltable, sublimable materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B38/065" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by physical aspects, e.g. shape, size or porosity</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Documents having this group as classification symbol or as part of a Combination Set can also get symbol <class-ref scheme="cpc">C04B38/0051</class-ref> in the Combination Set, if the importance of the size of the pores obtained is emphasized. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B38/0655" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0655</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Porous materials </text><reference><text><class-ref scheme="cpc">C04B38/0625</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B38/066" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by distribution, e.g. for obtaining inhomogeneous distribution of pores</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Documents having this group as classification symbol or as part of a Combination Set can also get symbol <class-ref scheme="cpc">C04B38/007</class-ref> in the Combination Set, if the importance of the distribution of the pores is emphasized. </note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B38/0665" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0665</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Waste material; Refuse other than vegetable refuse</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B38/067" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Macromolecular compounds </text><reference><text><class-ref scheme="cpc">C04B38/062</class-ref> takes precedence; polysaccharides <class-ref scheme="cpc">C04B38/0645</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B38/0675" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0675</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Vegetable refuse; Cellulosic materials, e.g. wood chips, cork, peat, paper</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B38/068" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B38/0685" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0685</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Minerals containing carbon, e.g. oil shale</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B38/069" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/069</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other materials, e.g. catalysts </text><reference><text><class-ref scheme="cpc">C04B33/13</class-ref>, <class-ref scheme="cpc">C04B35/00</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/0695" definition-exists="false" ipc-concordant="C04B38/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/0695</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Physical aspects of the porous material obtained</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/08" definition-exists="true" ipc-concordant="C04B38/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by adding porous substances</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/085" definition-exists="false" ipc-concordant="C04B38/08" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B38/085</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>of micro- or nanosize</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B38/10" definition-exists="true" ipc-concordant="C04B38/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using foaming agents </text><reference><text><class-ref scheme="cpc">C04B38/02</class-ref> takes precedence</text></reference><CPC-specific-text><text>or by using mechanical means, e.g. adding preformed foam</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/103" definition-exists="false" ipc-concordant="C04B38/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the foaming being obtained by the introduction of a gas other than untreated air, e.g. nitrogen</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B38/106" definition-exists="false" ipc-concordant="C04B38/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B38/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by adding preformed foams</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B40/00" definition-exists="true" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B40/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability </text><reference><text>active ingredients <class-ref scheme="cpc">C04B22/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B24/00</class-ref>; hardening of a well-defined composition <class-ref scheme="cpc">C04B26/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B28/00</class-ref>; making porous, cellular or lightening <class-ref scheme="cpc">C04B38/00</class-ref>; mechanical aspects <class-ref scheme="cpc">B28</class-ref>, e.g. conditioning the materials prior to shaping <class-ref scheme="cpc">B28B17/02</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0003" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of electric or wave energy or particle radiation</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0007" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electric, magnetic or electromagnetic fields</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/001" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electromagnetic waves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0014" definition-exists="true" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0014</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Microwaves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0017" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0017</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Irradiation, i.e. gamma -, X -, UV rays</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0021" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sonic or ultrasonic waves, e.g. to initiate sonochemical reactions</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0025" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>obtaining colloidal mortar</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0028" definition-exists="true" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aspects relating to the mixing step of the mortar preparation</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0032" definition-exists="true" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0032</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlling the process of mixing, e.g. adding ingredients in a quantity depending on a measured or desired value </text><reference><text><class-ref scheme="cpc">B28C7/00</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0035" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Processes characterised by the absence of a mechanical mixing step, e.g. &quot;no-mix&quot; processes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0039" definition-exists="true" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0039</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Premixtures of ingredients</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0042" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Powdery mixtures</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0046" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/005" definition-exists="true" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>High shear mixing; Obtaining macro-defect free materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0053" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Obtaining macro-defect free materials otherwise than by high shear mixing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0057" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0057</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Energetic mixing </text><reference><text><class-ref scheme="cpc">C04B40/005</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/006" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving the elimination of excess water from the mixture</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0064" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Processes of the Magnini or Hatscheck type</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0067" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of vibrations</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0071" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0071</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of a rise in pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0075" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of a decrease in temperature</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0078" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0078</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by freezing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0082" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of a rise in temperature, e.g. caused by an exothermic reaction</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0085" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving melting of at least part of the composition</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0089" definition-exists="false" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0089</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of vacuum or reduced pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0092" definition-exists="true" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Temporary binders, mortars or concrete, i.e. materials intended to be destroyed or removed after hardening, e.g. by acid dissolution</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/0096" definition-exists="true" ipc-concordant="C04B40/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0096</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Provisions for indicating condition of the compositions or the final products, e.g. degree of homogeneous mixing, degree of wear</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/02" definition-exists="true" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of the hardening environment</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this group the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>&quot;hardening&quot; covers also setting, pre-curing and curing </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0204" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0204</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of electric or wave energy or particle radiation</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0209" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0209</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electric, magnetic or electromagnetic fields</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0213" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0213</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electromagnetic waves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B40/0218" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0218</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Microwaves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B40/0222" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Irradiation, i.e. gamma -, X -, UV rays</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0227" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0227</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sonic or ultrasonic waves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0231" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0231</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbon dioxide hardening</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0236" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0236</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbon dioxide post-treatment of already hardened material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/024" definition-exists="true" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Steam hardening, e.g. in an autoclave</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0245" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0245</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>including a pre-curing step not involving a steam or autoclave treatment</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/025" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Adiabatic curing or hardening</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0254" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0254</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hardening in an enclosed space, e.g. in a flexible container</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0259" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0259</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hardening promoted by a rise in pressure </text><reference><text><class-ref scheme="cpc">C04B40/024</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0263" definition-exists="true" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0263</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hardening promoted by a rise in temperature </text><reference><text><class-ref scheme="cpc">C04B40/024</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0268" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0268</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heating up to sintering temperatures </text><reference><text><class-ref scheme="cpc">C04B41/0072</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0272" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0272</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hardening under vacuum or reduced pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0277" definition-exists="true" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0277</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hardening promoted by using additional water, e.g. by spraying water on the green concrete element </text><reference><text>steam hardening <class-ref scheme="cpc">C04B40/024</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0281" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0281</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hardening in an atmosphere of increased relative humidity</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0286" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hardening under water</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/029" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/029</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using an aqueous solution or dispersion</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0295" definition-exists="false" ipc-concordant="C04B40/02" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>C04B40/0295</classification-symbol><class-title date-revised="2017-02-01"><title-part><CPC-specific-text><text>Inhomogeneous curing or hardening, e.g. accelerated curing of surface regions of a concrete article; Influencing the setting or hardening process to generate physical or mechanical effects, e.g. to create cracks</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/04" definition-exists="true" ipc-concordant="C04B40/04" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preventing evaporation of the mixing water </text><reference><text>permanent coverings <class-ref scheme="cpc">C04B41/00</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B40/06" definition-exists="true" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B40/06</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers </text><CPC-specific-text><text>; Inhibiting the action of active ingredients</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Compositions with prolonged pot-life are not classified here. <br/> They are classified as other compositions and the symbol <class-ref scheme="cpc">C04B2111/00086</class-ref> is allocated in Combination Set. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0608" definition-exists="true" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0608</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dry ready-made mixtures, e.g. mortars at which only water or a water solution has to be added before use</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/0616" definition-exists="false" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0616</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>preformed, e.g. bandages</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0625" definition-exists="false" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0625</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Wet ready-made mixtures, e.g. mortars in water- or airtight packages, or mortars containing an accelerator in a breakable emulsion</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0633" definition-exists="false" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0633</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Chemical separation of ingredients, e.g. slowly soluble activator</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0641" definition-exists="false" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0641</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mechanical separation of ingredients, e.g. accelerator in breakable microcapsules</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B40/065" definition-exists="false" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Two or more component mortars</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0658" definition-exists="false" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0658</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Retarder inhibited mortars activated by the addition of accelerators or retarder-neutralising agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0666" definition-exists="true" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0666</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Chemical plugs based on hydraulic hardening materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0675" definition-exists="false" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0675</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mortars activated by rain, percolating or sucked-up water; Self-healing mortars or concrete</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0683" definition-exists="true" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B40/0683</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>inhibiting by freezing or cooling</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B40/0691" definition-exists="false" ipc-concordant="C04B40/06" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>C04B40/0691</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Thermally activated mortars, e.g. by melting ingredients</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C04B41/00" definition-exists="true" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>C04B41/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>After-treatment of mortars, concrete, artificial stone or ceramics</text></title-part><title-part><text>Treatment of natural stone </text><reference><text>conditioning of the materials prior to shaping <class-ref scheme="cpc">C04B40/00</class-ref>; applying liquids or other fluent materials to surfaces, in general <class-ref scheme="cpc">B05</class-ref>; grinding or polishing <class-ref scheme="cpc">B24</class-ref>; apparatus or processes for treating or working shaped articles of clay or other ceramic compositions, slag or mixtures containing cementitious material <class-ref scheme="cpc">B28B11/00</class-ref>; working stone or stone-like materials <class-ref scheme="cpc">B28D</class-ref>; glazes, other than cold glazes, <class-ref scheme="cpc">C03C8/00</class-ref>; etching, surface-brightening or pickling compositions <class-ref scheme="cpc">C09K13/00</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this group, the following terms or expressions are used with the meanings indicated: <subnote type="bullet"><note-paragraph> &quot;mortars&quot;, &quot;concrete&quot; and &quot;artificial stone&quot; cover materials after primary shaping.</note-paragraph></subnote></note-paragraph><note-paragraph>Treating, e.g. coating or impregnating, a material with the same material or with a substance that ultimately is transformed into the same material is not considered aftertreatment for this group but is classified as preparation of the material, e.g. a carbon body impregnated with a carbonisable substance is classified in <class-ref scheme="cpc">C04B35/52</class-ref>. </note-paragraph><note-paragraph>In groups <class-ref scheme="cpc">C04B41/45</class-ref> - <class-ref scheme="cpc">C04B41/80</class-ref>, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary, classification is made in the last appropriate place.</note-paragraph><note-paragraph><CPC-specific-note>In this group, multiple classification is made according to the following rules: <subnote type="bullet"><note-paragraph>when the substrate to be treated is of the artificial stone type, e.g. concrete, classification is made in the range <class-ref scheme="cpc">C04B41/00</class-ref> - <class-ref scheme="cpc">C04B41/5392</class-ref> as well as in the range <class-ref scheme="cpc">C04B41/60</class-ref> - <class-ref scheme="cpc">C04B41/72</class-ref> </note-paragraph><note-paragraph>when the substrate to be treated is of the ceramic type, classification is made in the range <class-ref scheme="cpc">C04B41/00</class-ref> - <class-ref scheme="cpc">C04B41/5392</class-ref> as well as in the range <class-ref scheme="cpc">C04B41/80</class-ref> - <class-ref scheme="cpc">C04B41/91</class-ref> </note-paragraph><note-paragraph>when the substrate to be treated is aspecific, classification is made only in the range <class-ref scheme="cpc">C04B41/00</class-ref> - <class-ref scheme="cpc">C04B41/5392</class-ref></note-paragraph></subnote></CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>In groups <class-ref scheme="cpc">C04B41/0018</class-ref> - <class-ref scheme="cpc">C04B41/53</class-ref>, in the absence of an indication to the contrary, classification is made in the last appropriate place.</CPC-specific-note></note-paragraph><note-paragraph><CPC-specific-note>In groups <class-ref scheme="cpc">C04B41/00</class-ref> - <class-ref scheme="cpc">C04B41/53</class-ref>, it is desirable to add the indexing codes relating to the nature of the substrate being treated. The indexing codes that are chosen from groups <class-ref scheme="cpc">C04B
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/0009" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/0009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Demolition agents based on cementitous or like materials</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Products classified in group <class-ref scheme="cpc">C04B41/0009</class-ref> should also be classified according to their composition, e.g. in <class-ref scheme="cpc">C04B28/00</class-ref></note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/0018" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/0018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coating or impregnating &quot;<u>in situ</u>&quot;, e.g. impregnating of artificial stone by subsequent melting of a compound added to the artificial stone composition</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/0027" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/0027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ion-implantation, ion-irradiation or ion-injection</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/0036" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/0036</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Laser treatment </text><reference><text>working by laser beam <class-ref scheme="cpc">B23K26/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/0045" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/0045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Irradiation; Radiation, e.g. with UV or IR </text><reference><text><class-ref scheme="cpc">C04B41/0036</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/0054" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/0054</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Plasma-treatment, e.g. with gas-discharge plasma</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/0063" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/0063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling, e.g. freezing</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this group the term &quot;cooling&quot; is used in the sense of an additional cooling treatment, different from the traditional cooling step in the fabrication of materials involving a heating step, such as sintering of ceramics</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/0072" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/0072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heat treatment</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/0081" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/0081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the subsequent cooling step</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/009" definition-exists="false" ipc-concordant="C04B41/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the material treated</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/45" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B41/45</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Coating or impregnating </text><reference><text>paints <class-ref scheme="cpc">C09D</class-ref></text></reference><text>, </text><CPC-specific-text><text>e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements </text><reference><text>ion-implantation <class-ref scheme="cpc">C04B41/0027</class-ref></text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In group <class-ref scheme="cpc">C04B41/45</class-ref> and sub-groups, as a general rule, classification is made according to the end products, rather than according to the starting materials, in the coating or impregnating compositions. </note-paragraph><note-paragraph> In groups <class-ref scheme="cpc">C04B41/45</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B41/528</class-ref> the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>&quot;coating&quot; covers material applied to the substrates as powdery material or applied from the gas or liquid phase, e.g. as a slurry; it only covers the use of preformed sheet-like elements in so far as the thickness of these sheets is small compared with the thickness of the substrate and so far as the resulting product is not exclusively one of the type classifiable in <class-ref scheme="cpc">B32B</class-ref></note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/4501" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4501</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with preformed sheet-like elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4503" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4503</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having an adhesive layer</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/4505" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4505</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the method of application</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4507" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4507</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using keying elements, e.g. particulate material, to facilitate the adherence of coating layers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4509" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4509</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>The keying element being generated from identations made in the substrate</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4511" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4511</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using temporarily supports, e.g. decalcomania transfers or mould surfaces</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4513" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4513</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the temporary support- and coating material being mixed together, e.g. tile glazing paper sheets</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4515" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4515</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>application under vacuum or reduced pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4517" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4517</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>application under inert, e.g. non-oxidising, atmosphere</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4519" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4519</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>application under an other specific atmosphere</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4521" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4521</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>application under increased pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4523" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4523</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>applied from the molten state </text><reference><text>vitreous materials <class-ref scheme="cpc">C04B41/5022</class-ref></text></reference><text>; Thermal spraying, e.g. plasma spraying</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Coating or impregnating with a specific material in the molten state is classified according to the specific material and get symbol <class-ref scheme="cpc">C04B41/4523</class-ref> in Combination Sets </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4525" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4525</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a molten bath as vehicle, e.g. molten borax</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4527" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4527</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Plasma spraying </text><reference><text>deposition from the gas phase using plasma <class-ref scheme="cpc">C04B41/4533</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4529" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4529</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>applied from the gas phase</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Coating or impregnating with a specific material from the gas phase is classified according to the specific material and symbol <class-ref scheme="cpc">C04B41/4529</class-ref> is allocated in Combination Sets </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4531" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4531</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by C.V.D.</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4533" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4533</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>plasma assisted</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4535" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4535</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>applied as a solution, emulsion, dispersion or suspension</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Coating or impregnation with a solution or a suspension of a specific material is classified according to the specific material and symbol <class-ref scheme="cpc">C04B41/4535</class-ref> is allocated in Combination Sets </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4537" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4537</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by the sol-gel process</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4539" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4539</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>as a emulsion, dispersion or suspension</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4541" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4541</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electroless plating</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4543" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4543</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by spraying, e.g. by atomising</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4545" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B41/4545</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>applied as a powdery material</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Coating or impregnation with a specific powdery material is classified according to the specific material and symbols <class-ref scheme="cpc">C04B41/4545</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B41/4549</class-ref> are allocated in Combination Sets </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4547" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4547</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the grain distribution</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4549" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4549</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nanometer-sized particles</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/455" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/455</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the coating or impregnating process including a chemical conversion or reaction</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4552" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4552</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the end product being obtained by a multistep reaction or conversion</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4554" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4554</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the coating or impregnating material being an organic or organo-metallic precursor of an inorganic material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4556" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4556</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>coating or impregnating with a product reacting with the substrate, e.g. generating a metal coating by surface reduction of a ceramic substrate</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4558" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4558</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coating or impregnating involving the chemical conversion of an already applied layer, e.g. obtaining an oxide layer by oxidising an applied metal layer</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/456" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/456</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conversion only taking place under certain conditions, e.g. avoiding damage of underlaying layers or parts of the substrate</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4562" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4562</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Photographic methods, e.g. making use of photo-sensitive materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4564" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4564</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrolytic or electrophoretic processes, e.g. electrochemical re-alkalisation of reinforced concrete </text><reference><text>desalination <class-ref scheme="cpc">C04B41/53</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4566" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4566</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrochemical re-alcalisation </text><reference><text>electrochemical desalination <class-ref scheme="cpc">C04B41/5369</class-ref>; cathodic protection <class-ref scheme="cpc">C23F13/02</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4568" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4568</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrostatic processes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/457" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/457</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-superficial impregnation or infiltration of the substrate</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/4572" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4572</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Partial coating or impregnation of the surface of the substrate</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4574" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4574</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coating different parts of the substrate with different materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4576" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4576</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Inlaid coatings, i.e. resulting in a plane surface</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/4578" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4578</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coating or impregnating of green ceramics or unset concrete</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/458" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/458</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving a mixing step with the top layer of the substrate</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/4582" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4582</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Porous coatings, e.g. coating containing porous fillers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/4584" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4584</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coating or impregnating of particulate or fibrous ceramic material </text><reference><text><class-ref scheme="cpc">C04B20/10</class-ref>, <class-ref scheme="cpc">C04B35/628</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/4586" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4586</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-chemical aspects relating to the substrate being coated or impregnated</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4588" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4588</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Superficial melting of the substrate before or during the coating or impregnating step</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/459" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/459</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Temporary coatings or impregnations </text><reference><text><class-ref scheme="cpc">C04B40/04</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/4592" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4592</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for masking purposes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4594" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4594</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in metallisation processes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/4596" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4596</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fibrous materials or whiskers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/4598" definition-exists="false" ipc-concordant="C04B41/45" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4598</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with waste materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/46" definition-exists="false" ipc-concordant="C04B41/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with organic materials</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/463" definition-exists="false" ipc-concordant="C04B41/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/463</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organic solvents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/466" definition-exists="false" ipc-concordant="C04B41/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/466</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Halogenated compounds, e.g. perfluor-compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/47" definition-exists="false" ipc-concordant="C04B41/47" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/47</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oils, fats or waxes </text><CPC-specific-text><text>natural resins</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/472" definition-exists="false" ipc-concordant="C04B41/47" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/472</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oils, e.g. linseed oil</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/474" definition-exists="false" ipc-concordant="C04B41/47" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/474</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Natural resins, e.g. rosin</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/476" definition-exists="false" ipc-concordant="C04B41/47" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cellulosic waste liquor, e.g. sulfite lye</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/478" definition-exists="false" ipc-concordant="C04B41/47" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/478</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bitumen, asphalt, e.g. paraffin</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/48" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Macromolecular compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4803" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4803</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polysaccharides, e.g. cellulose, or derivatives thereof</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4807" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4807</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Proteins or derivatives thereof</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4811" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4811</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Condensation polymers of aldehydes or ketones</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this group the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph> &quot;aldehydes&quot; also covers other organic compounds reacting as aldehydes, e.g. glyoxylic acid </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4815" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4815</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Melamine-formaldehyde condensation products</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4819" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4819</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Urea-formaldehyde condensation products</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4823" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4823</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phenol-formaldehyde condensation products</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4826" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4826</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyesters</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/483" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/483</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyacrylates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4834" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4834</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyacrylamides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4838" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4838</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Halogenated polymers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4842" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4842</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluorine-containing polymers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B41/4846" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4846</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Perfluoro-compounds</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4849" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4849</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sulfur-containing polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4853" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4853</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Epoxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4857" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4857</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4861" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4861</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyalkenes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4865" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4865</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coumarone polymers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4869" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4869</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyvinylalcohols, polyvinylacetates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4873" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4873</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyvinylacetals</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4876" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4876</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polystyrene</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/488" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/488</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4884" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4884</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyurethanes; Polyisocyanates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4888" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4888</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polycarbonates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4892" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4892</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyamides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4896" definition-exists="false" ipc-concordant="C04B41/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4896</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyethers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/49" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/49</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds having one or more carbon-to-metal or carbon-to-silicon linkages </text><CPC-specific-text><text>Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters </text><reference><text>to obtain SiO<sub>2</sub> <class-ref scheme="cpc">C04B41/5089</class-ref>, <class-ref scheme="cpc">C04B41/5035</class-ref></text></reference><text>; Organo-phosphorus compounds; Organo-inorganic complexes</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> As distinct from the general practice in <class-ref scheme="cpc">C04B41/00</class-ref>, classification in <class-ref scheme="cpc">C04B41/49</class-ref> and sub-groups is done according to the nature of the starting products, not according to the nature of the end products </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4905" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4905</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing silicon</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4911" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4911</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organo-clay compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4916" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4916</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>applied to the substrate as a solventless liquid</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4922" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4922</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B41/4927" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4927</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alkali metal or ammonium salts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B41/4933" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4933</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing halogens, i.e. organohalogen silanes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B41/4938" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4938</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing silicon bound to hydroxy groups, e.g. trimethyl silanol</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B41/4944" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4944</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing atoms other than carbon, hydrogen, oxygen, silicon, alkali metals or halogens, e.g. N-silyldisilazane: Image</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/495" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/495</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>applied to the substrate as oligomers or polymers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B41/4955" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4955</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyorganosilanes, i.e. polymers with a Si-Si-Si- chain</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B41/4961" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4961</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; &quot;silicones&quot;</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B41/4966" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4966</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing silicon bound to hydroxy groups, i.e. OH-blocked polysiloxanes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C04B41/4972" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4972</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alkali metal or ammonium salts</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B41/4977" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4977</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the number of silicon atoms</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C04B41/4983" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4983</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polycarbosilanes, i.e. polymers with a -Si-C-Si-chain; Polysilazanes, i.e. polymers with a -Si-N-Si-chain; Polysilathianes, i.e. polymers with a -Si-S-Si-chain</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/4988" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4988</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organosilicium-organic copolymers, e.g. olefins with terminal silane groups</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/4994" definition-exists="false" ipc-concordant="C04B41/49" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/4994</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Organo-phosphorus compounds</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/50" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with inorganic materials</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5001" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with carbon or carbonisable materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5002" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Diamond</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5003" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fullerenes or derivatives thereof</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5005" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbon fluorides; Halogen containing carbon or graphite intercallation products</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5006" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Boron compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5007" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with salts or salty compositions, e.g. for salt glazing </text><reference><text><class-ref scheme="cpc">C04B41/5006</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5009" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing nitrogen in the anion, e.g. nitrites</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/501" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/501</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing carbon in the anion, e.g. carbonates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5011" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5011</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing halogen in the anion</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5012" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5012</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>chlorides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5014" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5014</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing sulfur in the anion, e.g. sulfides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5015" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5015</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing phosphorus in the anion, e.g. phosphates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5016" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Acids</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5018" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluorine compounds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5019" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5019</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>applied from the gas phase, e.g. ocratation</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/502" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/502</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Water</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5022" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with vitreous materials </text><reference><text>composition of vitreous glazes and enamels <class-ref scheme="cpc">C03C</class-ref>; ceramic pigments <class-ref scheme="cpc">C09C1/0009</class-ref></text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Glazing of concrete, natural or artificial stone or ceramics is only classified in <class-ref scheme="cpc">C04B41/5022</class-ref> when non-compositional aspects are important, e.g. aspects relating to the method of application or the choice of the substrate </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5023" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Glass-ceramics </text><reference><text>compositions of glass-ceramics <class-ref scheme="cpc">C03C10/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5024" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicates </text><reference><text><class-ref scheme="cpc">C04B41/5022</class-ref> takes precedence; silico-fluorides <class-ref scheme="cpc">C04B41/5018</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5025" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B41/5025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with ceramic materials </text><reference><text>copper oxide or solid solutions thereof <class-ref scheme="cpc">C04B41/5074</class-ref></text></reference></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subgroup, the materials considered as ceramic materials are those covered by groups <class-ref scheme="cpc">C04B33/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B35/83</class-ref></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5027" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B41/5027</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Oxide ceramics in general; Specific oxide ceramics not covered by <class-ref scheme="cpc">C04B41/5029</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B41/5051</class-ref></text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5028" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Manganates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5029" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5029</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Magnesia</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5031" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5031</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alumina</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5032" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5032</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aluminates </text><reference><text>aluminate spinels <class-ref scheme="cpc">C04B41/5046</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5033" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Chromium oxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5035" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silica</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5036" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5036</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ferrites</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5037" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5037</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Clay, Kaolin</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5038" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5038</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Porcelain</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/504" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/504</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Engobes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5041" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Titanium oxide or titanates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5042" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Zirconium oxides or zirconates; Hafnium oxides or hafnates</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5044" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hafnates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5045" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rare-earth oxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5046" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Spinels, e.g. magnesium aluminate spinels</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5048" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5049" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5049</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Zinc or bismuth oxides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/505" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/505</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tin oxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5051" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5051</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Niobium oxides or niobates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5054" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5054</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sulfides or selenides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5055" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5055</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluorides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5057" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5057</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5058" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5058</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Boron carbide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5059" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5059</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicon carbide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5061" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Titanium carbide</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5062" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Borides, Nitrides or Silicides</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5063" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aluminium nitride</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5064" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Boron nitride</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5066" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicon nitride</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5067" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicon oxynitrides, e.g. SIALON</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5068" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Titanium nitride</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/507" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/507</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Borides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5071" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5071</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5072" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with oxides or hydroxides not covered by <class-ref scheme="cpc">C04B41/5025</class-ref> </text><reference><text><class-ref scheme="cpc">C04B40/0236</class-ref> takes precedence; boron oxide <class-ref scheme="cpc">C04B41/5006</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5074" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5074</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Copper oxide or solid solutions thereof </text><reference><text>CuO-Cu eutectic <class-ref scheme="cpc">C04B41/5127</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5075" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Copper oxide</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5076" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5076</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with masses bonded by inorganic cements </text><reference><text>sulfur compositions <class-ref scheme="cpc">C04B41/5097</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5077" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5077</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Geopolymer cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5079" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5079</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Portland cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/508" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/508</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aluminous cements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5081" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Calcium alumino sulfate cements</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5083" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slag cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5084" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lime, hydraulic lime or magnesium oxide cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5085" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Calcium sulfate cements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5087" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Anhydrite</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5088" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cementitious compositions of the silica-lime type</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5089" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5089</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silica sols, alkyl, ammonium or alkali metal silicate cements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/509" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/509</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Magnesium cements, e.g. Sorel cement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5092" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphate cements</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5093" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with elements other than metals or carbon </text><reference><text>treatment with fluorine gas <class-ref scheme="cpc">C04B41/5019</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5094" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5094</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Boron</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5096" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5096</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silicon </text><reference><text><class-ref scheme="cpc">C04B35/573</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5097" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5097</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sulfur</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5098" definition-exists="false" ipc-concordant="C04B41/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5098</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cermets</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/51" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B41/51</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Metallising </text><CPC-specific-text><text>, e.g. infiltration of sintered ceramic preforms with molten metal </text><reference><text>covering materials with metals in general <class-ref scheme="cpc">C23C</class-ref>; ceramic compositions containing free metal bonded to carbides, diamond, oxides, borides, nitrides, silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides, other than as macroscopic reinforcing agents <class-ref scheme="cpc">C22C</class-ref>; infiltration of preforms containing free metal, e.g. cermets <class-ref scheme="cpc">C22C</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5105" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a composition mainly composed of one or more of the noble metals or copper</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5111" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5111</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ag, Au, Pd, Pt or Cu</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5116" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5116</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ag or Au</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5122" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pd or Pt</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5127" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cu, e.g. Cu-CuO eutectic</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5133" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5133</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a composition mainly composed of one or more of the refractory metals</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5138" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5138</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a composition mainly composed of Mn and Mo, e.g. for the Moly-manganese method</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5144" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5144</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a composition mainly composed of one or more of the metals of the iron group</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/515" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/515</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other specific metals</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5155" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5155</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Aluminium</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5161" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5161</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tin</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5166" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lead</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C04B41/5172" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5172</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cadmium</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5177" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5177</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the non-metallic part of the metallising composition</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5183" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>inorganic</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5188" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5188</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>organic</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C04B41/5194" definition-exists="false" ipc-concordant="C04B41/51" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5194</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Metallisation of multilayered ceramics, e.g. for the fabrication of multilayer ceramic capacitors</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/52" definition-exists="false" ipc-concordant="C04B41/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Multiple coating or impregnating </text><CPC-specific-text><text>multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Multiple coating or impregnation with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation and symbol <class-ref scheme="cpc">C04B41/52</class-ref> is allocated in Combination Sets </note-paragraph><note-paragraph> Groups <class-ref scheme="cpc">C04B41/522</class-ref> and <class-ref scheme="cpc">C04B41/524</class-ref> are used for Combination Sets only of documents classified in <class-ref scheme="cpc">C04B41/52</class-ref></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/522" definition-exists="false" ipc-concordant="C04B41/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/522</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple coatings, for one of the coatings of which at least one alternative is described</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/524" definition-exists="false" ipc-concordant="C04B41/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/524</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple coatings, comprising a coating layer of the same material as a previous coating layer</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/526" definition-exists="false" ipc-concordant="C04B41/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/526</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple coating or impregnation with materials having the same composition but different characteristics</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/528" definition-exists="false" ipc-concordant="C04B41/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/528</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Applying layers containing opposite charged particles or materials in the successive layers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C04B41/53" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B41/53</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>involving the removal of at least part of the materials of the treated article, </text><CPC-specific-text><text>e.g. etching, drying of hardened concrete </text><reference><text><class-ref scheme="cpc">C04B41/0036</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B41/0054</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/5307" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5307</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Removal of physically bonded water, e.g. drying of hardened concrete </text><reference><text><class-ref scheme="cpc">E04B1/7007</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/5315" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5315</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cleaning compositions, e.g. for removing hardened cement from ceramic tiles</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/5323" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5323</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>to make grain visible, e.g. for obtaining exposed aggregate concrete</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/533" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/533</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Seeding methods, i.e. the exposed aggregates, at least partially, not making part of the starting mixture</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/5338" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5338</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Etching </text><reference><text>for obtaining decorative effects <class-ref scheme="cpc">B44C1/22</class-ref>; etching of specific electronic compounds, <u>see</u> the relevant places, e.g. etching of semiconductor bodies <class-ref scheme="cpc">H01L21/306</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5346" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5346</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dry etching</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5353" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5353</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Wet etching, e.g. with etchants dissolved in organic solvents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C04B41/5361" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5361</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Etching with molten material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C04B41/5369" definition-exists="false" ipc-concordant="C04B41/53" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B41/5369</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Desalination, e.g. of reinforced concrete</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0065" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0065</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Polymers characterised by their glass transition temperature (Tg)</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0066" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0066</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Film forming polymers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/0067" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0067</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>the ingredients being formed <u>in situ</u> by chemical reactions or conversion of one or more of the compounds of the composition</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/0068" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0068</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Ingredients with a function or property not provided for elsewhere in <class-ref scheme="cpc">C04B2103/00</class-ref></text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0069" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0069</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>the ingredients being characterised by their physical state</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B103/007" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/007</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Supercritical fluids</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0071" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0071</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Phase-change materials, e.g. latent heat storage materials used in concrete compositions</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0072" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0072</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Biodegradable materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0073" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0073</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Self-degrading materials, e.g. materials undergoing a hydrolytic degradation in the course of time</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0074" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0074</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Anti-static agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0075" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0075</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Anti-dusting agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0076" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0076</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Deodorizing agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0077" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0077</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Packaging material remaining in the mixture after the mixing step, e.g. soluble bags containing active ingredients</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0078" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0078</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Sorbent materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0079" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0079</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Rheology influencing agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/008" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/008</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Flocking or deflocking agents</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B103/0081" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0081</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Deflocking agents</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0082" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0082</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Segregation-preventing agents; Sedimentation-preventing agents</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B103/0083" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0083</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Bleeding-preventing agents</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0084" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0084</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Polyelectrolytes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0085" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0085</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Thixotropic agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0086" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0086</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Chelating or complexing agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0087" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0087</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Ion-exchanging agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0088" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0088</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Compounds chosen for their latent hydraulic characteristics, e.g. pozzuolanes</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Code <class-ref scheme="cpc">C04B2103/0088</class-ref> is only used when the chemical nature of the latent hydraulic material is not specified, when no specific group in subclass <class-ref scheme="cpc">C04B</class-ref> exists for defining the material or when it is chosen from an important number of alternatives. </note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0089" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0089</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Agents for reducing heat of hydration</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/009" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/009</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Anhydrous vehicles for hydraulic cement compositions</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0091" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0091</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Organic co-binders for mineral binder compositions</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B103/0092" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0092</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for improving green strength</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0093" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0093</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Organic cosolvents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0094" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0094</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Agents for altering or buffering the pH; Ingredients characterised by their pH</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0095" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0095</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Oxidising agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0096" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0096</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Reducing agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0097" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0097</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Anion- and far-infrared-emitting materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/0098" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0098</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Radioactive materials</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/0099" definition-exists="false" ipc-concordant="C04B103/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/0099</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Aspecific ingredients, i.e. high number of alternative specific compounds mentioned for the same function or property</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/10" definition-exists="false" ipc-concordant="C04B103/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Accelerators</text></title-part><title-part><text>Activators</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/105" definition-exists="false" ipc-concordant="C04B103/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/105</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for reactions involving organo-silicon compounds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/12" definition-exists="false" ipc-concordant="C04B103/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Set accelerators</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/14" definition-exists="false" ipc-concordant="C04B103/14" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hardening accelerators</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/20" definition-exists="false" ipc-concordant="C04B103/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Retarders</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/22" definition-exists="false" ipc-concordant="C04B103/22" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Set retarders</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/24" definition-exists="false" ipc-concordant="C04B103/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hardening retarders</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/30" definition-exists="false" ipc-concordant="C04B103/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Water reducers, plasticisers, air-entrainers, flow improvers</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/302" definition-exists="false" ipc-concordant="C04B103/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/302</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Water reducers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/304" definition-exists="false" ipc-concordant="C04B103/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/304</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Air-entrainers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/306" definition-exists="false" ipc-concordant="C04B103/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/306</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Fluidisers with reduced air-entraning effect</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/308" definition-exists="false" ipc-concordant="C04B103/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/308</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Slump-loss preventing agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/32" definition-exists="false" ipc-concordant="C04B103/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Superplasticisers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/34" definition-exists="false" ipc-concordant="C04B103/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/34</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Flow improvers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/40" definition-exists="false" ipc-concordant="C04B103/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Surface-active agents, dispersants</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/402" definition-exists="false" ipc-concordant="C04B103/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/402</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>anionic</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/404" definition-exists="false" ipc-concordant="C04B103/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/404</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>cationic</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/406" definition-exists="false" ipc-concordant="C04B103/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/406</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>non-ionic</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/408" definition-exists="false" ipc-concordant="C04B103/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/408</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Dispersants</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/42" definition-exists="false" ipc-concordant="C04B103/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pore formers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/44" definition-exists="false" ipc-concordant="C04B103/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Thickening, gelling or viscosity increasing agents</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/445" definition-exists="false" ipc-concordant="C04B103/44" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/445</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Gelling agents</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/46" definition-exists="false" ipc-concordant="C04B103/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/465" definition-exists="false" ipc-concordant="C04B103/46" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/465</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Water-sorbing agents, hygroscopic or hydrophilic agents</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/48" definition-exists="false" ipc-concordant="C04B103/48" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Foam stabilisers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/50" definition-exists="false" ipc-concordant="C04B103/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Defoamers, air detrainers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/52" definition-exists="false" ipc-concordant="C04B103/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Grinding aids</text></title-part><title-part><text>Additives added during grinding</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/54" definition-exists="false" ipc-concordant="C04B103/54" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pigments</text></title-part><title-part><text>Dyes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/56" definition-exists="false" ipc-concordant="C04B103/56" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Opacifiers</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/58" definition-exists="false" ipc-concordant="C04B103/56" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/58</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Shrinkage reducing agents</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B103/60" definition-exists="false" ipc-concordant="C04B103/60" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Agents for protection against chemical, physical or biological attack</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/601" definition-exists="false" ipc-concordant="C04B103/60" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/601</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Agents for increasing frost resistance</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/603" definition-exists="false" ipc-concordant="C04B103/60" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/603</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Agents for controlling alkali-aggregate reactions</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/605" definition-exists="false" ipc-concordant="C04B103/60" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/605</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>UV-stabilising agents</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/606" definition-exists="false" ipc-concordant="C04B103/60" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/606</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Agents for neutralising Ca(OH)<sub>2</sub> liberated during cement hardening</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/608" definition-exists="false" ipc-concordant="C04B103/60" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2103/608</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Anti-oxidants</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/61" definition-exists="false" ipc-concordant="C04B103/61" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/61</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Corrosion inhibitors</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/63" definition-exists="false" ipc-concordant="C04B103/63" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/63</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flame-proofing agents</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/65" definition-exists="false" ipc-concordant="C04B103/65" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C04B2103/65</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Water proofers or repellants</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B103/67" definition-exists="false" ipc-concordant="C04B103/67" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/67</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Biocides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B103/69" definition-exists="false" ipc-concordant="C04B103/69" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2103/69</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fungicides</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="C04B111/00" definition-exists="true" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/00008" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C04B2111/00008</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Obtaining or using nanotechnology related materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/00017" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00017</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Aspects relating to the protection of the environment</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/00025" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00025</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection </text><reference><text>avoiding chromium eczema by using chromium VI-free or very low chromium VI-content materials <class-ref scheme="cpc">C04B2111/1081</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/00034" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00034</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Physico-chemical characteristics of the mixtures</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00043" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B2111/00043</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Anhydrous mixtures</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Code <class-ref scheme="cpc">C04B2111/00043</class-ref> is only used in combination with groups <class-ref scheme="cpc">C04B26/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B26/32</class-ref>. </note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00051" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00051</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Mortar or concrete mixtures with an unusual low cement content, e.g. for foundations</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/0006" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/0006</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for obtaining materials with the consistency of soil</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00068" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00068</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Mortar or concrete mixtures with an unusual water/cement ratio</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00077" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00077</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Partially hardened mortar or concrete mixtures</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00086" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00086</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Mixtures with prolonged pot-life</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00094" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00094</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Sag-resistant materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00103" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00103</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Self-compacting mixtures</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00905" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00905</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>as preforms</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/00913" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00913</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>as ceramic preforms for the fabrication of metal matrix comp, e.g. cermets</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B111/00922" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00922</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Preforms as such</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00939" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00939</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for the fabrication of moulds or cores</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00948" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00948</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for the fabrication of containers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00956" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00956</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for making sculptures or artistic casts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00965" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00965</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for household applications, e.g. use of materials as cooking ware</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00974" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00974</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for pyrotechnic applications, e.g. blasting</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00982" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00982</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>as construction elements for space vehicles or aeroplanes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/00991" definition-exists="false" ipc-concordant="C04B111/00" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/00991</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for testing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/10" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compositions or ingredients thereof characterised by the absence or the very low content of a specific material</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/1006" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1006</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Absence of well-defined organic compounds</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/1012" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1012</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Organic solvents</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/1018" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1018</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Gypsum free or very low gypsum content cement compositions</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/1025" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1025</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Alkali-free or very low alkali-content materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/1031" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1031</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Lime-free or very low lime-content materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/1037" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1037</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Cement free compositions, e.g. hydraulically hardening mixtures based on waste materials, not containing cement as such</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/1043" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1043</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Calciumaluminate-free refractories</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/105" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/105</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Alumina-free or very low alumina-content materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/1056" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1056</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Silica-free or very low silica-content materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/1062" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1062</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Halogen free or very low halogen-content materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/1068" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1068</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Halogens other than chlorine</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/1075" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1075</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Chromium-free or very low chromium-content materials</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/1081" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1081</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Chromium VI, e.g. for avoiding chromium eczema </text><reference><text>materials containing special additives for affording skin protection <class-ref scheme="cpc">C04B2111/00025</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/1087" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1087</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Carbon free or very low carbon content fly ashes; Fly ashes treated to reduce their carbon content or the effect thereof</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/1093" definition-exists="false" ipc-concordant="C04B111/10" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/1093</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Reducing the effect of the carbon content, without removing the carbon</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/12" definition-exists="false" ipc-concordant="C04B111/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Absence of mineral fibres, e.g. asbestos</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/125" definition-exists="false" ipc-concordant="C04B111/12" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/125</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Mineral fibres other than asbestos</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/2007" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2007</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Avoiding unauthorised or unwanted use or treatment</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/2015" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2015</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Sulfate resistance</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/2023" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2023</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Resistance against alkali-aggregate reaction</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/203" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/203</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Oil-proof or grease-repellant materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/2038" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2038</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Resistance against physical degradation</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/2046" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2046</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Shock-absorbing materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/2053" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2053</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Earthquake- or hurricane-resistant materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/2061" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2061</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Materials containing photocatalysts, e.g. TiO<sub>2</sub>, for avoiding staining by air pollutants or the like</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/2069" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2069</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Self cleaning materials, e.g. using lotus effect </text><reference><text>using photocatalysts <class-ref scheme="cpc">C04B2111/2061</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/2076" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2076</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Discolouring resistant materials </text><reference><text>self cleaning materials <class-ref scheme="cpc">C04B2111/2069</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/2084" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2084</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Thermal shock resistance</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/2092" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/2092</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Resistance against biological degradation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/21" definition-exists="false" ipc-concordant="C04B111/21" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Efflorescence resistance</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/22" definition-exists="false" ipc-concordant="C04B111/22" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbonation resistance</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/23" definition-exists="false" ipc-concordant="C04B111/23" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/23</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acid resistance, e.g. against acid air or rain</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/24" definition-exists="false" ipc-concordant="C04B111/24" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sea water resistance</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/25" definition-exists="false" ipc-concordant="C04B111/25" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/25</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Graffiti resistance</text></title-part><title-part><text>Graffiti removing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/26" definition-exists="false" ipc-concordant="C04B111/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Corrosion of reinforcement resistance</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/265" definition-exists="false" ipc-concordant="C04B111/26" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/265</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Cathodic protection of reinforced concrete structures</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/27" definition-exists="false" ipc-concordant="C04B111/27" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C04B2111/27</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Water resistance, i.e. waterproof or water-repellent materials</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/275" definition-exists="false" ipc-concordant="C04B111/27" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/275</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Making materials water insoluble</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/28" definition-exists="false" ipc-concordant="C04B111/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fire resistance, i.e. materials resistant to accidental fires or high temperatures</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/285" definition-exists="false" ipc-concordant="C04B111/28" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/285</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Intumescent materials</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/29" definition-exists="false" ipc-concordant="C04B111/20" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/29</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Frost-thaw resistance</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/30" definition-exists="false" ipc-concordant="C04B111/30" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nailable or sawable materials</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/32" definition-exists="false" ipc-concordant="C04B111/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Expansion-inhibited materials</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/325" definition-exists="false" ipc-concordant="C04B111/32" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/325</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>the expansion being inhibited in one direction only</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/34" definition-exists="false" ipc-concordant="C04B111/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-shrinking or non-cracking materials</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/343" definition-exists="false" ipc-concordant="C04B111/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/343</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Crack resistant materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/346" definition-exists="false" ipc-concordant="C04B111/34" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/346</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Materials exhibiting reduced plastic shrinkage cracking</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/40" definition-exists="false" ipc-concordant="C04B111/40" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Porous or lightweight materials</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/42" definition-exists="false" ipc-concordant="C04B111/42" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Floating materials</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/50" definition-exists="false" ipc-concordant="C04B111/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flexible or elastic materials</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph><subnote type="bullet"><note-paragraph>&quot;flexibility&quot; means ability to bend without breaking; </note-paragraph><note-paragraph>&quot;elasticity&quot; means property to resist and recover from deformation produced by a force. </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/503" definition-exists="false" ipc-concordant="C04B111/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/503</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Elastic materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/506" definition-exists="false" ipc-concordant="C04B111/50" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/506</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Bendable material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/52" definition-exists="false" ipc-concordant="C04B111/52" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sound-insulating materials</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/54" definition-exists="false" ipc-concordant="C04B111/54" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Substitutes for natural stone, artistic materials or the like</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/542" definition-exists="false" ipc-concordant="C04B111/54" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/542</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Artificial natural stone</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B111/545" definition-exists="false" ipc-concordant="C04B111/54" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/545</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Artificial marble</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/547" definition-exists="false" ipc-concordant="C04B111/54" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/547</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Imitating ancient compositions, e.g. mediaeval mortars; Compositions specially designed for restauration of ancient buildings or building elements</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/56" definition-exists="false" ipc-concordant="C04B111/56" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compositions suited for fabrication of pipes, e.g. by centrifugal casting, or for coating concrete pipes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/60" definition-exists="false" ipc-concordant="C04B111/60" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flooring materials</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/62" definition-exists="false" ipc-concordant="C04B111/62" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Self-levelling compositions</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/70" definition-exists="false" ipc-concordant="C04B111/70" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Grouts, e.g. injection mixtures for cables for prestressed concrete</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/72" definition-exists="false" ipc-concordant="C04B111/72" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Repairing or restoring existing buildings or building materials</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/723" definition-exists="false" ipc-concordant="C04B111/72" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/723</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Repairing reinforced concrete</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/726" definition-exists="false" ipc-concordant="C04B111/72" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/726</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>by chemical conversion of unwanted deposits, e.g. for the restauration of marble monuments</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/74" definition-exists="false" ipc-concordant="C04B111/74" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Underwater applications</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/76" definition-exists="false" ipc-concordant="C04B111/76" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use at unusual temperatures, e.g. sub-zero</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/763" definition-exists="false" ipc-concordant="C04B111/76" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/763</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>High temperatures</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/766" definition-exists="false" ipc-concordant="C04B111/76" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/766</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Low temperatures, but above zero</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/80" definition-exists="false" ipc-concordant="C04B111/80" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Optical properties, e.g. transparency or reflexibility</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/802" definition-exists="false" ipc-concordant="C04B111/80" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/802</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>White cement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/805" definition-exists="false" ipc-concordant="C04B111/80" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/805</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Transparent material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/807" definition-exists="false" ipc-concordant="C04B111/80" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/807</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Luminescent or fluorescent materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/82" definition-exists="false" ipc-concordant="C04B111/82" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Coloured materials</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B111/90" definition-exists="false" ipc-concordant="C04B111/90" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/90</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electrical properties</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/905" definition-exists="false" ipc-concordant="C04B111/90" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>C04B2111/905</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Anti-static materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/92" definition-exists="false" ipc-concordant="C04B111/92" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/92</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electrically insulating materials</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B111/94" definition-exists="false" ipc-concordant="C04B111/94" c-set-base-allowed="true" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2111/94</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electrically conducting materials</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="C04B201/00" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B2201/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mortars, concrete or artificial stone characterised by specific physical values</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Indexing codes <class-ref scheme="cpc">C04B2201/05</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2201/30</class-ref> are only to be used when the specific physical values are claimed or when they deviate considerably from the average usual values. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B201/05" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2201/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Materials having an early high strength, e.g. allowing fast demoulding or formless casting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B201/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2201/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for the viscosity</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B201/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2201/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for the density</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B201/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2201/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for heat transfer properties such as thermal insulation values, e.g. R-values</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B201/32" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2201/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for the thermal conductivity, e.g. K-factors</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B201/40" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2201/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for gas flow through the material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B201/50" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2201/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for the mechanical strength</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B201/52" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2201/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm<sup>2</sup>, e.g. reactive powder concrete [RPC]</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="C04B235/00" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aspects relating to ceramic starting mixtures or sintered ceramic products</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this group, magnesium is considered as an alkaline earth metal.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B235/02" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B2235/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Composition of constituents of the starting material or of secondary phases of the final product</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Indexing codes <class-ref scheme="cpc">C04B2235/02</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/5481</class-ref> are to be used only if the aspect is not trivial or not standard, e.g. if water is used as a mixing medium for a powder, whereas normally an organic mixing medium is used or if not the standard alpha-alumina is used to make an alumina ceramic but gamma-alumina in stead. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/30" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B2235/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Constituents and secondary phases not being of a fibrous nature</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>Indexing codes <class-ref scheme="cpc">C04B2235/30</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/549</class-ref> are to be given to constituents or additives only if: <subnote type="alpha"><note-paragraph>it is not obvious from the end product as such that the constituent or additive has been used for making the end product. <br/> Examples: <subnote type="bullet"><note-paragraph>in case spinel is made from a certain clay in stead of from alumina and silica, the clay is coded, </note-paragraph><note-paragraph>when calcium zirconate and titania are used to make calcium zirconium titanate, a code should be given for the calcium zirconate constituent while normally calcium oxide or calcium carbonate and zirconia are used. </note-paragraph></subnote>The titania constituent of the starting mixture is not coded since it is to be expected that a single metal oxide is used to make a mixed metal oxide. </note-paragraph><note-paragraph>it is not obvious from the &quot;invention information&quot; symbols that this constituent has been used to make the end product, e.g. if the &quot;invention information&quot; symbol given indicates that a zirconia-alumina composite is prepared it is common practice that zirconia and alumina constituents have been used and thus no codes for zirconia or alumina are given. In the same way, if an allocation indicates that an oxide ceramic contains carbon, no code for the addition of carbon is given. However for an alumina composite product comprising titania, the main symbol for composites based on alumina is given together with an indexing code for titania. </note-paragraph></subnote></note-paragraph><note-paragraph>In groups <class-ref scheme="cpc">C04B2235/32</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/349</class-ref> oxides are considered to comprise also metal salts from which they are formed by heating. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/32" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B2235/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In groups <class-ref scheme="cpc">C04B2235/32</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/349</class-ref> metal salts are classified according to the oxides that are formed by heating the metal salts. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3201" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3201</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkali metal oxides or oxide-forming salts thereof</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3203" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3203</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lithium oxide or oxide-forming salts thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3205" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3205</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3206" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3206</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium oxides or oxide-forming salts thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3208" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3208</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Calcium oxide or oxide-forming salts thereof, e.g. lime</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/321" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/321</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dolomites, i.e. mixed calcium magnesium carbonates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3212" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3212</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Calcium phosphates, e.g. hydroxyapatite</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3213" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3213</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Strontium oxides or oxide-forming salts thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3215" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3215</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Barium oxides or oxide-forming salts thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3217" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3217</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3218" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3218</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/322" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/322</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Transition aluminas, e.g. delta or gamma aluminas</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3222" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3222</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminates other than alumino-silicates, e.g. spinel (MgAl<sub>2</sub>O<sub>4</sub>)</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3224" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3224</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3225" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3225</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Yttrium oxide or oxide-forming salts thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3227" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3227</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lanthanum oxide or oxide-forming salts thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3229" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3229</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cerium oxides or oxide-forming salts thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3231" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3231</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3232" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3232</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Titanium oxides or titanates, e.g. rutile or anatase</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3234" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3234</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Titanates, not containing zirconia</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="C04B235/3236" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3236</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkaline earth titanates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3237" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3237</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Substoichiometric titanium oxides, e.g. Ti<sub>2</sub>O<sub>3</sub></text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3239" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3239</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3241" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3241</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chromium oxides, chromates, or oxide-forming salts thereof</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3243" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3243</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chromates or chromites, e.g. aluminum chromate, lanthanum strontium chromite</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3244" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>C04B2235/3244</classification-symbol><class-title date-revised="2018-01-01"><title-part><text>Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3246" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3246</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stabilised zirconias, e.g. YSZ or cerium stabilised zirconia</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3248" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3248</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Zirconates or hafnates, e.g. zircon</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="C04B235/3249" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3249</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing also titanium oxide or titanates, e.g. lead zirconate titanate (PZT)</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3251" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>C04B2235/3251</classification-symbol><class-title date-revised="2018-01-01"><title-part><text>Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3253" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3253</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Substoichiometric niobium or tantalum oxides, e.g. NbO</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3255" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3255</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Niobates or tantalates, e.g. silver niobate</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3256" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3256</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Molybdenum oxides, molybdates or oxide forming salts thereof, e.g. cadmium molybdate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3258" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3258</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tungsten oxides, tungstates, or oxide-forming salts thereof</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/326" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/326</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tungstates, e.g. scheelite</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3262" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3262</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3263" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3263</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mn<sub>3</sub>O<sub>4</sub></text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3265" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3265</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mn<sub>2</sub>O<sub>3</sub></text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3267" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3267</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MnO<sub>2</sub></text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3268" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3268</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manganates, manganites, rhenates or rhenites, e.g. lithium manganite, barium manganate, rhenium oxide</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/327" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/327</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3272" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3272</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3274" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3274</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ferrites</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3275" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3275</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3277" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3277</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Co<sub>3</sub>O<sub>4</sub></text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3279" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3279</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nickel oxides, nickalates, or oxide-forming salts thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3281" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3281</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu<sub>2</sub>O</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3282" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3282</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cuprates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3284" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3284</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3286" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3286</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gallium oxides, gallates, indium oxides, indates, thallium oxides, thallates or oxide forming salts thereof, e.g. zinc gallate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3287" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3287</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Germanium oxides, germanates or oxide forming salts thereof, e.g. copper germanate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3289" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3289</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Noble metal oxides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3291" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3291</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silver oxides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3293" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3293</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tin oxides, stannates or oxide forming salts thereof, e.g. indium tin oxide [ITO]</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3294" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3294</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Antimony oxides, antimonates, antimonites or oxide forming salts thereof, indium antimonate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3296" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3296</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lead oxides, plumbates or oxide forming salts thereof, e.g. silver plumbate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3298" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3298</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/34" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3409" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3409</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3418" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3418</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint </text><reference><text>glass constituents <class-ref scheme="cpc">C04B2235/36</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3427" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3427</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicates other than clay, e.g. water glass</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3436" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3436</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkaline earth metal silicates, e.g. barium silicate</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3445" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3445</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium silicates, e.g. forsterite</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3454" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3454</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Calcium silicates, e.g. wollastonite</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3463" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3463</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alumino-silicates other than clay, e.g. mullite</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3472" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3472</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3481" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3481</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/349" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/349</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/36" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Glass starting materials for making ceramics, e.g. silica glass</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/365" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Borosilicate glass</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/38" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-oxide ceramic constituents or additives</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3804" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3804</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Borides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3808" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3808</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium borides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3813" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3813</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractory metal borides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3817" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3817</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3821" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3821</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Boron carbides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3826" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3826</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicon carbides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/383" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/383</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alpha silicon carbide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3834" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3834</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Beta silicon carbide</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3839" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3839</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractory metal carbides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3843" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3843</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Titanium carbides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3847" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3847</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tungsten carbides</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3852" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3852</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3856" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B2235/3856</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbonitrides, e.g. titanium carbonitride, zirconium carbonitride</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> When indexing in group <class-ref scheme="cpc">C04B2235/3856</class-ref> indexing according to the metal is also made in groups <class-ref scheme="cpc">C04B2235/3865</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/3886</class-ref></note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/386" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/386</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Boron nitrides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3865" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3865</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminium nitrides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3869" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3869</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminium oxynitrides, e.g. AlON, sialon</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3873" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3873</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3878" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3878</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alpha silicon nitrides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/3882" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3882</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Beta silicon nitrides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/3886" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3886</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractory metal nitrides, e.g. vanadium nitride, tungsten nitride</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3891" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3891</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicides, e.g. molybdenum disilicide, iron silicide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/3895" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/3895</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-oxides with a defined oxygen content, e.g. SiOC, TiON</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/40" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metallic constituents or additives not added as binding phase</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/401" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/401</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkaline earth metals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/402" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/402</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminium</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/404" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/404</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractory metals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/405" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/405</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Iron group metals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/407" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/407</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Copper</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/408" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/408</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Noble metals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/42" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/421" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/421</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Boron</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/422" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/422</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/424" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/424</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon black</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/425" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/425</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Graphite</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/427" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/427</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Diamond</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/428" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/428</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicon</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/44" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/441" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/441</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkoxides, e.g. methoxide, tert-butoxide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/442" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/442</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbonates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/443" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/443</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrates or nitrites</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/444" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/444</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halide containing anions, e.g. bromide, iodate, chlorite</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/445" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/445</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluoride containing anions, e.g. fluosilicate</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/446" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/446</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfides, tellurides or selenides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/447" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/447</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Phosphates or phosphites </text><reference><text>calcium phosphates <class-ref scheme="cpc">C04B2235/3212</class-ref></text></reference><text>, e.g. orthophosphate, hypophosphite</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/448" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/448</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulphates or sulphites</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/449" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/449</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Organic acids, e.g. EDTA, citrate, acetate, oxalate</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/46" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gases other than oxygen used as reactant, e.g. nitrogen used to make a nitride phase</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/465" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/465</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ammonia</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/48" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/483" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/483</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/486" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/486</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Boron containing organic compounds, e.g. borazine, borane or boranyl</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/50" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/52" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Constituents or additives characterised by their shapes</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/5204" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5204</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monocrystalline powders</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/5208" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5208</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fibers</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5212" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5212</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Organic</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5216" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5216</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inorganic</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/522" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/522</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxidic</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="C04B235/5224" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5224</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alumina or aluminates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="C04B235/5228" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5228</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silica and alumina, including aluminosilicates, e.g. mullite</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="C04B235/5232" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-01-01" status="published"><classification-symbol>C04B2235/5232</classification-symbol><class-title date-revised="2017-01-01"><title-part><text>Silica or silicates other than aluminosilicates, e.g. quartz</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="C04B235/5236" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5236</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Zirconia</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/524" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/524</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-oxidic, e.g. borides, carbides, silicides or nitrides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="C04B235/5244" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5244</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicon carbide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="C04B235/5248" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5248</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon, e.g. graphite</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5252" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5252</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a specific pre-form</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="C04B235/5256" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5256</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two-dimensional, e.g. woven structures</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/526" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>C04B2235/526</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>characterised by the length of the fibers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5264" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>C04B2235/5264</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>characterised by the diameter of the fibers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5268" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5268</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Orientation of the fibers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5272" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5272</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fibers of the same material with different length or diameter</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/5276" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5276</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Whiskers, spindles, needles or pins</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/528" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/528</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spheres</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/5284" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5284</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hollow fibers, e.g. nanotubes</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5288" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5288</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon nanotubes</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/5292" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5292</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flakes, platelets or plates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/5296" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5296</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a defined aspect ratio, e.g. indicating sphericity </text><reference><text>spherical constituents <class-ref scheme="cpc">C04B2235/528</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/54" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Particle size related information</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/5409" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5409</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>expressed by specific surface values</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/5418" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5418</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>expressed by the size of the particles or aggregates thereof</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5427" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5427</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>millimeter or submillimeter sized, i.e. larger than 0,1 mm</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5436" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5436</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>micrometer sized, i.e. from 1 to 100 micron</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5445" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5445</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>submicron sized, i.e. from 0,1 to 1 micron</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5454" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5454</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>nanometer sized, i.e. below 100 nm</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/5463" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5463</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Particle size distributions</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5472" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5472</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bimodal, multi-modal or multi-fraction</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/5481" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/5481</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monomodal</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/549" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/549</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the particle size being expressed by crystallite size or primary particle size</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B235/60" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/602" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/602</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making the green bodies or pre-forms by moulding</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6021" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6021</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Extrusion moulding</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6022" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6022</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Injection moulding</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6023" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6023</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gel casting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6025" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6025</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tape casting, e.g. with a doctor blade</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6026" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6026</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Computer aided shaping, e.g. rapid prototyping</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6027" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6027</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Slip casting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6028" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6028</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaping around a core which is removed later</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/604" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/604</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressing at temperatures other than sintering temperatures</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/605" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/605</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making or treating the green body or pre-form in a magnetic field</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/606" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/606</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Drying</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/608" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/608</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Green bodies or pre-forms with well-defined density</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/61" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/61</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mechanical properties, e.g. fracture toughness, hardness, Young&apos;s modulus or strength</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/612" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/612</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Machining</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/614" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/614</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gas infiltration of green bodies or pre-forms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/616" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/616</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Liquid infiltration of green bodies or pre-forms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B235/65" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/65</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/652" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/652</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reduction treatment </text><reference><text><class-ref scheme="cpc">C04B2235/664</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/656" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/656</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by specific heating conditions during heat treatment</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6562" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6562</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heating rate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6565" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6565</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling rate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6567" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6567</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Treatment time</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/658" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/658</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Atmosphere during thermal treatment</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6581" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6581</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Total pressure below 1 atmosphere, e.g. vacuum</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6582" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6582</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydrogen containing atmosphere</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6583" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6583</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen containing atmosphere, e.g. with changing oxygen pressures</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/6584" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6584</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>at an oxygen percentage below that of air</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/6585" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6585</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>at an oxygen percentage above that of air</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6586" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6586</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Processes characterised by the flow of gas</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6587" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6587</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Influencing the atmosphere by vaporising a solid material, e.g. by using a burying of sacrificial powder</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/6588" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/6588</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Water vapor containing atmospheres</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/66" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Specific sintering techniques, e.g. centrifugal sintering</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/661" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/661</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Multi-step sintering</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/662" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/662</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Annealing after sintering</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/663" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/663</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxidative annealing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/664" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/664</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reductive annealing</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/665" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/665</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Local sintering, e.g. laser sintering</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/666" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/666</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Applying a current during sintering, e.g. plasma sintering [SPS], electrical resistance heating or pulse electric current sintering [PECS]</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/667" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/667</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sintering using wave energy, e.g. microwave sintering</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/668" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/668</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressureless sintering</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B235/70" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aspects relating to sintered or melt-casted ceramic products</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/72" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina ceramics</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/721" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/721</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon content</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/722" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/722</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen content</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/723" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/723</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen content</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/724" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/724</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogenide content</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/725" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/725</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metal content</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/726" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/726</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur content</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/727" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/727</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Phosphorus or phosphorus compound content</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/728" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/728</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicon content</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/74" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Physical characteristics</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/75" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/75</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Products with a concentration gradient</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/76" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B2235/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Crystal structural characteristics, e.g. symmetry</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Codes <class-ref scheme="cpc">C04B2235/76</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/768</class-ref> are to be used only if the crystal structure is not identified by the classification. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/761" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/761</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Unit-cell parameters, e.g. lattice constants</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/762" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/762</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cubic symmetry, e.g. beta-SiC</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/763" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/763</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spinel structure AB<sub>2</sub>O<sub>4</sub></text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/764" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/764</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Garnet structure A<sub>3</sub>B<sub>2</sub>(CO<sub>4</sub>)<sub>3</sub></text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/765" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/765</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tetragonal symmetry</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/766" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/766</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Trigonal symmetry, e.g. alpha-Si<sub>3</sub>N<sub>4</sub> or alpha-Sialon</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/767" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/767</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hexagonal symmetry, e.g. beta-Si<sub>3</sub>N<sub>4</sub>, beta-Sialon, alpha-SiC or hexa-ferrites</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/768" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/768</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Perovskite structure ABO<sub>3</sub></text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/77" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/77</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Density</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/775" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/775</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Products showing a density-gradient</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/78" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/781" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/781</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nanograined materials, i.e. having grain sizes below 100 nm</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/782" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/782</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Grain size distributions</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/783" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/783</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bimodal, multi-modal or multi-fractional</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B235/784" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/784</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monomodal</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/785" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/785</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Submicron sized grains, i.e. from 0,1 to 1 micron</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/786" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/786</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Micrometer sized grains, i.e. from 1 to 100 micron</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/787" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/787</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oriented grains</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/788" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/788</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aspect ratio of the grains</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/79" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/79</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-stoichiometric products, e.g. perovskites (ABO<sub>3</sub>) with an A/B-ratio other than 1</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/80" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B2235/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Phases present in the sintered or melt-cast ceramic products other than the main phase</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this group the term &quot;phases other than the main phase&quot; refers to any phase that is not the main phase, i.e. the phase that is present in the largest amount</note-paragraph><note-paragraph> Codes chosen from groups <class-ref scheme="cpc">C04B2235/30</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/5296</class-ref> are used for identifying the phases other than the main phase </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/81" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/81</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Materials characterised by the absence of phases other than the main phase, i.e. single phase materials</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/83" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/83</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ferrites containing Fe2+</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/85" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/85</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Intergranular or grain boundary phases</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/87" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/87</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Grain boundary phases intentionally being absent</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/94" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/94</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Products characterised by their shape</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/945" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/945</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Products containing grooves, cuts, recesses or protusions</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/95" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/95</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Products characterised by their size, e.g. microceramics</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B235/96" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C04B2235/96</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Codes <class-ref scheme="cpc">C04B2235/96</class-ref>&#160;-&#160;<class-ref scheme="cpc">C04B2235/9692</class-ref> are to be used only if the property is not identified already by an &quot;invention information&quot; symbol, e.g. by a symbol out of subclass <class-ref scheme="cpc">H01L</class-ref> indicating that the ceramic is dielectric, piezoelectric or magnetic. </note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/9607" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9607</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Thermal properties, e.g. thermal expansion coefficient</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/9615" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9615</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Linear firing shrinkage</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/9623" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9623</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ceramic setters properties</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/963" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/963</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Surface properties, e.g. surface roughness</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/9638" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9638</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tolerance</text></title-part><title-part><text>Dimensional accuracy</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/9646" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9646</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Optical properties</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/9653" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>C04B2235/9653</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>Translucent or transparent ceramics other than alumina</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/9661" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9661</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Colour</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B235/9669" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9669</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Resistance against chemicals, e.g. against molten glass or molten salts</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/9676" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9676</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>against molten metals such as steel or aluminium</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/9684" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9684</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxidation resistance</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B235/9692" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2235/9692</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acid, alkali or halogen resistance</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="C04B237/00" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B237/02" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/04" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ceramic interlayers</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/06" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxidic interlayers</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/062" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on silica or silicates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/064" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on alumina or aluminates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/066" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on rare earth oxides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/068" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on refractory oxides, e.g. zirconia</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/08" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-oxidic interlayers</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/083" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/083</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbide interlayers, e.g. silicon carbide interlayers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/086" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon interlayers</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/09" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>wherein the active component for bonding is not the largest fraction of the interlayer</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/095" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/095</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>The active component for bonding being silicon</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/10" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Glass interlayers, e.g. frit or flux</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/12" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metallic interlayers</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/121" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on aluminium</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/122" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on refractory metals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/123" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on iron group metals, e.g. steel</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/124" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on copper</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/125" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>based on noble metals, e.g. silver</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/126" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>wherein the active component for bonding is not the largest fraction of the interlayer</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/127" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>The active component for bonding being a refractory metal</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/128" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>The active component for bonding being silicon</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/16" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicon interlayers</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B237/30" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/32" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ceramic</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/34" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxidic</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/341" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/341</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silica or silicates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/343" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/343</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alumina or aluminates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/345" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/345</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractory metal oxides</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B237/346" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/346</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Titania or titanates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="C04B237/348" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/348</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Zirconia, hafnia, zirconates or hafnates</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/36" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-oxidic</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/361" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/361</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Boron nitride</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/363" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/363</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/365" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicon carbide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/366" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/366</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminium nitride</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/368" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/368</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Silicon nitride</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/38" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fiber or whisker reinforced</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/385" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/385</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon or carbon composite</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/40" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metallic</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/401" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/401</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cermets</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/402" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/402</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminium</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/403" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/403</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Refractory metals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/404" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/404</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manganese or rhenium</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/405" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/405</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Iron metal group, e.g. Co or Ni</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/406" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/406</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Iron, e.g. steel</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/407" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/407</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Copper</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/408" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/408</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Noble metals, e.g. palladium, platina or silver</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B237/50" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/52" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pre-treatment of the joining surfaces, e.g. cleaning, machining</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/525" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/525</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by heating</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/54" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxidising the surface before joining</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/55" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/55</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pre-treatments of a coated or not coated substrate other than oxidation treatment in order to form an active joining layer</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/555" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/555</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>on a substrate not containing an interlayer coating, leading to the formation of an interlayer coating</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/56" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Using constraining layers before or during sintering</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/561" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/561</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Constraining layers not covering the whole surface of the layers to be sintered, e.g. constraining layers with holes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/562" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/562</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made of alumina or aluminates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/564" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/564</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made of glass</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/565" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/565</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made of refractory metal oxides, e.g. zirconia</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/567" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/567</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made of metal</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/568" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/568</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made of non-oxide ceramics</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/58" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming a gradient in composition or in properties across the laminate or the joined articles</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/582" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/582</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by joining layers or articles of the same composition but having different additives</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="C04B237/584" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/584</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the different additives being fibers or whiskers</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/586" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/586</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by joining layers or articles of the same composition but having different densities</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/588" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/588</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by joining layers or articles of the same composition but having different particle or grain sizes</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/59" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/59</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aspects relating to the structure of the interlayer</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/592" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/592</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>whereby the interlayer is not continuous, e.g. not the whole surface of the smallest substrate is covered by the interlayer</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/595" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/595</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>whereby the interlayer is continuous, but heterogeneous on macro-scale, e.g. one part of the interlayer being a joining material, another part being an electrode material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/597" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/597</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>whereby the interlayer is continuous but porous, e.g. containing hollow or porous particles, macro- or micropores or cracks</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/60" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming at the joining interface or in the joining layer specific reaction phases or zones, e.g. diffusion of reactive species from the interlayer to the substrate or from a substrate to the joining interface, carbide forming at the joining interface</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/61" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/61</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Joining two substrates of which at least one is porous by infiltrating the porous substrate with a liquid, such as a molten metal, causing bonding of the two substrates, e.g. joining two porous carbon substrates by infiltrating with molten silicon</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/62" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming laminates or joined articles comprising holes, channels or other types of openings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/64" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming laminates or joined articles comprising grooves or cuts</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/66" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming laminates or joined articles showing high dimensional accuracy, e.g. indicated by the warpage</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/68" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming laminates or joining articles wherein at least one substrate contains at least two different parts of macro-size, e.g. one ceramic substrate layer containing an embedded conductor or electrode</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/70" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming laminates or joined articles comprising layers of a specific, unusual thickness</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/702" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/702</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of one or more of the constraining layers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/704" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/704</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of one or more of the ceramic layers or articles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/706" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/706</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of one or more of the metallic layers or articles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/708" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/708</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of one or more of the interlayers</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/72" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming laminates or joined articles comprising at least two interlayers directly next to each other</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/74" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming laminates or joined articles comprising at least two different interlayers separated by a substrate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/76" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="C04B237/765" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/765</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>at least one member being a tube</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/78" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Side-way connecting, e.g. connecting two plates through their sides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/80" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Joining the largest surface of one substrate with a smaller surface of the other substrate, e.g. butt joining or forming a T-joint</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/82" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two substrates not completely covering each other, e.g. two plates in a staggered position</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/84" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Joining of a first substrate with a second substrate at least partially inside the first substrate, where the bonding area is at the inside of the first substrate, e.g. one tube inside another tube</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/86" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Joining of two substrates at their largest surfaces, one surface being complete joined and covered, the other surface not, e.g. a small plate joined at it&apos;s largest surface on top of a larger plate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="C04B237/88" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2237/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Joining of two substrates, where a substantial part of the joining material is present outside of the joint, leading to an outside joining of the joint</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="C04B290/00" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2290/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Organisational aspects of production methods, equipment or plants</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B290/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2290/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Business methods aspects</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="C04B290/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C04B2290/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Integrated combined plants or devices, e.g. combined foundry and concrete plant</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></class-scheme>