1,3-Isobenzofurandione, polymer with 1,2-ethanediol and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 2,6-dimethylphenyl ester 64365-60-2 Trimethylolpropane, ethylene glycol, phthalic anhydride, 2,6-xylenol polymer