by unsaturated higher fatty oils or their acids; by resin acids

Full Title

Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule (polyester-amides C08G69/44; polyester-imides C08G73/16) > Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds > derived from polycarboxylic acids and polyhydroxy compounds > Polyesters chemically modified by esterification (C08G63/20 takes precedence; by after-treatment C08G63/91) > by unsaturated higher fatty oils or their acids; by resin acids