2-Propenoic acid, 2-methyl-, methyl ester, polymer with butyl 2-propenoate and N-(hydroxymethyl)-2-propenamide 27235-04-7 Methyl methacrylate, N-methylolacrylamide, butyl acrylate polymer Methyl methacrylate, butyl acrylate, N-methylolacrylamide polymer