70969-60-7 Furan, tetrahydro-, polymer with 1,3-diisocyanatomethylbenzene, 1,1'-methylenebis(4-isocyanatobenzene) and oxirane Tetrahydrofuran, oxirane, 1,3-diisocyanatomethylbenzene, 1,1'-methylenebis(4-isocyanatobenzene) polymer