C CHEMISTRY; METALLURGY
C08 ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
C08G63/00 Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
C08G63/68 Polyesters containing atoms other than carbon, hydrogen and oxygen
C08G63/688 containing sulfur
C08G63/6884 derived from polycarboxylic acids and polyhydroxy compounds