1,3-Isobenzofurandione, polymer with 2,2'-(1,2-ethanediylbis(oxy))bis(ethanol), 2,5-furandione and 2,2'-oxybis(ethanol) 67859-37-4 Diethylene glycol, triethylene glycol, maleic anhydride, phthalic anhydride polymer Maleic anhydride, phthalic anhydride, diethylene glycol, triethylene glycol polymer Triethylene glycol, diethylene glycol, maleic anhydride, phthalic anhydride polymer