2-Propenoic acid, 2-methyl-, polymer with ethyl 2-propenoate, 2-hydroxyethyl 2-propenoate, methyl 2-propenoate and 2-sulfoethyl 2-methyl-2-propenoate 65733-84-8 Ethyl acrylate, methyl acrylate, 2-hydroxyethyl acrylate, methacrylic acid, sulfoethyl methacrylate polymer