C
CHEMISTRY; METALLURGY
C
CHEMISTRY; METALLURGY
C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
C08J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
2489/00
Characterised by the use of proteins; Derivatives thereof
2489/00
Characterised by the use of proteins; Derivatives thereof
C08J2489/04
Products derived from waste materials, e.g. horn, hoof or hair
C08J2489/04
Products derived from waste materials, e.g. horn, hoof or hair
C08J2489/06
derived from leather or skin
C08J2489/06
derived from leather or skin