2-Propene-1-sulfonic acid, sodium salt, polymer with ethenyl acetate Acetic acid ethenyl ester, polymer with sodium 2-propene-1-sulfonate Acetic acid ethenyl ester, polymer with sodium 2-propene-1-sulfonate (1:1) Sodium 1-propene-3-sulfonate-vinyl acetate copolymer Sodium 2-propene-1-sulfonate-vinyl acetate polymer Sodium 2-propenesulfonate-vinyl acetate polymer Sodium allylsulfonate-vinyl acetate copolymer Sodium allylsulfonate-vinyl acetate polymer Sodium allylsulfonic acid-vinyl acetate polymer Vinyl acetate-sodium allylsulfonate copolymer