1,3-Isobenzofurandione, polymer with 1,2-ethanediol, 2,5-furandione, 2,2'-oxybis(ethanol), 1,2-propanediol and 1,2,3-propanetriol 68310-40-7 Phthalic anhydride, maleic anhydride, diethylene glycol, ethylene glycol, glycerin, propylene glycol polymer