1,3-Isobenzofurandione, polymer with 2,5-furandione, oxybis(propanol) and 1,2-propanediol 37347-86-7 Maleic anhydride, dipropylene glycol, phthalic anhydride, propyleneglycol polymer Maleic anhydride, phthalic anhydride, propylene glycol, dipropyleneglycol polymer