C CHEMISTRY; METALLURGY
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
C08J7/00 Chemical treatment or coating of shaped articles made of macromolecular substances
C08J7/042 with two or more layers, where at least one layer of a composition contains a polymer binder
C08J7/0423 with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder