2-Propenoic acid, 2-methyl-, polymer with butyl 2-propenoate, methyl 2-methyl-2-propenoate and 2-propenoic acid 27791-81-7 Acrylic acid, butyl acrylate, methacrylic acid, methyl methacrylatepolymer Methyl methacrylate, n-butyl acrylate, methacrylic acid, acrylic acid polymer