B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR applying liquids or other fluent materials to surfaces in general B05; coating wood or similar material B44DCHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALSIn this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. B27K1/00 B27K1/00Damping wood B27K1/02Apparatus B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation processdyeing, staining B27K5/00In groups B27K3/16 - B27K3/50, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary, impregnating agents are classified in the last appropriate place.This Note corresponds to IPC Note (1) relating to B27K3/16 - B27K3/34. B27K3/002employing compositions comprising microorganisms B27K3/005employing compositions comprising microparticles B27K3/007employing compositions comprising nanoparticles B27K3/02ProcessesApparatus B27K3/0207Pretreatment of wood before impregnation B27K3/0214Drying drying in general F26B B27K3/0221Pore opening B27K3/0214 takes precedence B27K3/0228Spraying apparatus, e.g. tunnels B27K3/0235Stationary devices on or in legs or poles B27K3/0242using melt impregnation B27K3/025Controlling the process B27K3/0257using rods or tablets, or ampoules, e.g. inserted in pre-drilled cavities B27K3/0264using staples or nails B27K3/0271Vapour phase impregnation B27K3/0278involving an additional treatment during or after impregnation B27K3/0285for improving the penetration of the impregnating fluid B27K3/0292for improving fixation B27K3/0285 takes precedence B27K3/04Impregnating in open tanks B27K3/06Sap stream methods B27K3/08Impregnating by pressure , e.g. vacuum impregnation B27K3/083along the fibers, i.e. longitudinal impregnation B27K3/086using supercritical or high pressure fluids B27K3/10Apparatus B27K3/105Injection apparatus B27K3/12Impregnating by coating the surface of the wood with an impregnating paste B27K3/14Bandage methods B27K3/15Impregnating involving polymerisation including use of polymer-containing impregnating agents macromolecular compounds derived from lignocellulosic materials C08H; compositions of lignin-containing materials C08L97/02 When classifying in group B27K3/15, classification is additionally made in the groups of subclass C08L for defining the chemical polymeric structure B27K3/153Without in-situ polymerisation, condensation, or cross-linking reactions B27K3/156Combined with grafting onto wood fibres B27K3/16Inorganic impregnating agents B27K3/163Compounds of boron B27K3/166Compounds of phosphorus B27K3/18Compounds of alkaline earth metals B27K3/20Compounds of alkali metals or ammonium B27K3/22Compounds of zinc or copper B27K3/24Compounds of mercury B27K3/26Compounds of iron, aluminium, or chromium B27K3/28Compounds of arsenic or antimony B27K3/30Compounds of fluorine B27K3/32Mixtures of different inorganic impregnating agents B27K3/34Organic impregnating agents polymers B27K3/15 B27K3/343Heterocyclic compounds B27K3/346Grafting onto wood fibres B27K3/156 takes precedence; macromolecular compounds derived from lignocellulosic materials C08H B27K3/36Aliphatic compounds B27K3/38Aromatic compounds B27K3/343 takes precedence B27K3/40halogenated B27K3/42nitrated, or nitrated and halogenated B27K3/44TarMineral oil B27K3/46Coal tar B27K3/48Mineral oil B27K3/50Mixtures of different organic impregnating agents B27K3/52Impregnating agents containing mixtures of inorganic and organic compounds B27K5/00Treating of wood not provided for in groups B27K1/00, B27K3/00 B27K5/0005Cryogenic treatment B27K5/001Heating B27K5/0015by electric means B27K5/002Electric discharges, plasma B27K5/0025by magnetic fields B27K5/003by using electromagnetic radiation or mechanical waves infra-red heating of wood B27K5/001 B27K5/0035Electron beam-radiation B27K5/004Gamma-radiation B27K5/0045X-rays B27K5/005Laser-light B27K5/0055Radio-waves, e.g. microwaves B27K5/006Vibrations B27K5/0065Ultrasonic treatment B27K5/007using pressure B27K3/08 takes precedence B27K5/0075Vacuum B27K5/008Supercritical or high pressure fluids B27K5/0085Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C B27K5/009using a well-defined temperature schedule B27K5/0095by employing wrappers B27K5/02Staining or dyeing wood wood staining compositions C09D15/00Bleaching wood bleaching wood pulp D21C9/10 B27K5/04Combined bleaching or impregnating and drying of wood B27K5/06Softening or hardening of wood B27K5/065Hardening B27K7/00Chemical or physical treatment of cork mechanical working of cork B27J5/00 B27K9/00Chemical or physical treatment of reed, straw, or similar material mechanical working of cane or the like B27J1/00 B27K9/002Cane, bamboo B27K9/005Reed B27K9/007Straw B27K2200/00 B27K2200/00Wooden materials to be treated B27K2200/10Articles made of particles or fibres consisting of wood or other lignocellulosic material wood composite materials made of particles or fibres B27N B27K2200/15Pretreated particles or fibres B27K2200/30Multilayer articles comprising wood multilayered products B32B B27K2240/00Purpose of the treatment B27K2240/10Extraction of components naturally occurring in wood, cork, straw, cane or reed solvent extraction B01D11/00 B27K2240/15Decontamination of previously treated wood decontamination in general A62D3/00 B27K2240/20Removing fungi, molds or insects biocidal compositions A01N; sterilization or disinfection of wood A61L B27K2240/30Fireproofing fireproofing materials in general C09K21/00 B27K2240/50Ageing B27K2240/60Improving the heat-storage capacity B27K2240/70Hydrophobation treatment B27K2240/90UV-protection