62950-07-6 68133-49-3 Methyloxirane, oxirane, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol ether, 1,1'-methylenebis(4-isocyanatobenzene) polymer Oxirane, methyl-, polymer with oxirane, ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1), polymer with 1,1'-methylenebis(4-isocyanatobenzene)