1,3-Isobenzofurandione, hexahydro-, polymer with 2,2'-((1-methylethylidene)bis(4,1-phenyleneoxymethylene))bis(oxirane) 28185-25-3 635326-63-5 Hexahydro-1,3-isobenzofurandione, 2,2-bis(p-(2,3-epoxypropoxy)phenyl)propane polymer