2-Propenoic acid, butyl ester, polymer with 2-propenoic acid, ethylester, 2-propenenitrile, N-(isobutoxymethyl)acrylamide and methylenebutanedioic acid 67827-81-0 Butanedioic acid, methylene-, polymer with butyl 2-propenoate, ethyl 2-propenoate, N-((2-methylpropoxy)methyl)-2-propenamide and 2-propenenitrile