2-Propenoic acid, 2-methyl-, methyl ester, polymer with ethyl 2-propenoate, N-(hydroxymethyl)-2-propenamide and 2-propenoic acid, ammonium salt 2-Propenoic acid, polymer with methyl 2-methyl-2-propenoate, ethyl 2-propenoate and N-(hydroxymethyl)-2-propenamide, ammonium salt 67924-02-1