1,3-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 1,2-ethanediol, 2,5-furandione and 2,2'-oxybis(ethanol) 70942-06-2 Ethylene glycol, diethylene glycol, isophthalic acid, trimellitic anhydride, maleic anhydride polymer