Synonyms: Ethylene, methacrylic acid, methacrylic acid, potassium salt polymer;Poly(ethylene, methacrylic acid, methacrylic acid, potassium salt);2-Propenoic acid, 2-methyl-, polymer with ethene and potassium 2-methyl-2-propenoate;2-Propenoic acid, 2-methyl-, polymer with ethene and potassium 2-methyl-2-propenoate (1:1);67892-74-4