9072-62-2 D.E.R. 732 epoxy resin D.E.R. 736 epoxy resin DER 736 Oxirane, (chloromethyl)-, polymer with alpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)) Polypropylene glycol, (chloromethyl)oxirane polymer alpha-Hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)), (chloromethyl)oxirane polymer