Synonyms: 1,2-Ethanediol,polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid,2,2-dimethyl-1,3-propanediol and 1,3-isobenzofurandione (9CI); 1,3-Isobenzofurandione,polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid,2,2-dimethyl-1,3-propanediol and 1,2-ethanediol (9CI); 1,3-Propanediol,2,2-dimethyl-, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylicacid, 1,2-ethanediol and 1,3-isobenzofurandione (9CI); Ethyleneglycol-neopentyl glycol-phthalic anhydride-trimellitic anhydride copolymer