1,3-Isobenzofurandione, polymer with 2,2-bis(bromomethyl)-1,3-propanediol, 2,5-furandione and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione 69961-72-4 Maleic anhydride, phthalic anhydride, tetrahydrophthalic anhydride,dibromoneopentyl glycol polymer