2-Propenoic acid, 2-methyl-, 2-sulfoethyl ester, polymer with butyl2-propenoate, ethyl 2-propenoate, N-(hydroxymethyl)-2-propenamide and 2-propenoic acid 67785-40-4 Acrylic acid, butyl acrylate, ethyl acrylate, N-methylolacrylamide,2-sulfoethyl methacrylate polymer