英文名称:2-Propenoic acid, polymer with .alpha.-(2-methyl-1-oxo-2-propenyl)-.omega.-(nonylphenoxy)poly(oxy-1,2-ethanediyl), ammonium salt; 2-Propenoic acid, polymer with .alpha.-(2-methyl-1-oxo-2-propenyl)-.omega.-(nonylphenoxy)poly(oxy-1,2-ethanediyl), ammonium salt