100218-77-7 2-Propenoic acid, 2-methyl-, polymer with ethyl 2-propenoate, sodium salt 2-Propenoic acid, ethyl ester, polymer with 2-methyl-2-propenoic acid, sodium salt 41487-53-0 Ethyl 2-propenoate, 2-methyl-2-propenoate polymer, sodium salt