1,3-Isobenzofurandione, 3a,4,5,7a-tetrahydro-, polymer with 2,5-furandione, 1,2-propanediol and 3a,4,7,7a-tetrahydro-4,7-methano-1H-indene 68631-16-3 Propylene glycol, tetrahydrophthalic anhydride, maleic anhydride, dicyclopentadiene polymer