1,3-Isobenzofurandione, 4,5,6,7-tetrachloro-, polymer with 1,2-ethanediol, 2,5-furandione, 1,3-isobenzofurandione and 1,2-propanediol 67939-40-6 Maleic anhydride, phthalic anhydride, tetrachlorophthalic anhydride, ethylene glycol, propylene glycol polymer