C09FNATURAL RESINSFRENCH POLISHDRYING-OILSDRIERS (SICCATIVES)TURPENTINEIn this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. C09F1/00 C09F1/00Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins C09F1/02Purification C09F1/04Chemical modification, e.g. esterification resin soaps C11D C09F3/00Obtaining spirits of turpentine C09F3/02as a by-product in the paper-pulping process C09F5/00Obtaining drying-oils preparation of synthetic oil by polymerisation C08F, C08G C09F5/02from natural sources C09F5/04from cashew nuts C09F5/06by dehydration of hydroxylated fatty acids or oils C09F5/08by esterification of fatty acids C09F5/10Refining C09F5/12by distillation C09F7/00Chemical modification of drying oils modifying by copolymerisation C08F; polycondensation C08G; factice C08H C09F7/02by oxidising C09F7/04by voltolising C09F7/06by polymerisation C09F7/08by isomerisation C09F7/10by re-esterification C09F7/12Apparatus therefor C09F9/00Compounds to be used as driers (siccatives) C09F11/00Preparation of French polish