1,3-Isobenzofurandione, polymer with 2,2-dimethyl-1,3-propanediol, ethenylbenzene, 2,5-furandione and 1,2-propanediol 68133-63-1 68609-75-6 Maleic anhydride, isophthalic acid, propylene glycol, neopentyl glycol polymer, styrene-crosslinked Maleic anhydride, phthalic anhydride, propylene glycol, neopentyl glycol, styrene polymer