2-Propenoic acid, 2-methyl-, 2-sulfoethyl ester, polymer with 1,1-dichloroethene, 2-hydroxyethyl 2-propenoate and methyl 2-propenoate 63766-47-2 Methyl acrylate, vinylidene chloride, 2-hydroxyethyl acrylate, sulfoethyl methacrylate polymer