2-Butenedioic acid (2Z)-, polymer with 2,5-furandione, 1,3-isobenzofurandione, 2,2'-oxybis(ethanol), 1,2-propanediol and 3a,4,7,7a-tetrahydro-4,7-methano-1H-indene 70715-20-7 Maleic acid, maleic anhydride, phthalic anhydride, diethylene glycol, propylene glycol, dicyclopentadiene polymer