1,3-Benzenedicarboxylic acid, polymer with (2E)-2-butenedioic acid,hexanedioic acid, 1,2-propanediol and 4,5,6,7-tetrachloro-1,3-isobenzofurandione 67989-78-0 Fumaric acid, adipic acid, isophthalic acid, tetrachlorophthalic anhydride, propylene glycol polymer