2-Propenoic acid, 2-methyl-, butyl ester, polymer with N-(3-(dimethylamino)propyl)-2-methyl-2-propenamide, dodecyl 2-methyl-2-propenoate and octadecyl 2-methyl-2-propenoate 50507-26-1 50867-55-5 Butyl methacrylate, lauryl methacrylate, stearyl methacrylate, 3-dimethylaminopropylmethacrylamide polymer