1,3-Isobenzofurandione, polymer with 2,5-furandione, 1,2-propanediol and 1,2,3-propanetriol 36569-86-5 67989-76-8 Phthalic anhydride, maleic anhydride, propylene glycol, glycerin polymer Phthalic anhydride, polymer with maleic anhydride, glycerin and propylene glycol