1,3-Isobenzofurandione, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 2,5-furandione, 2,2'-oxybis(ethanol) and 1,2-propanediol 65588-77-4 Polymer of diethylene glycol, maleic anhydride, phthalic anhydride,propylene glycol, trimethylolpropane