2-Propenoic acid, 2-methyl-, butyl ester, polymer with methyl 2-methyl-2-propenoate and oxiranylmethyl 2-methyl-2-propenoate, ammonia-modified 68584-72-5 Butyl methacrylate, oxiranylmethyl methacrylate, methyl methacrylate polymer, ammonia modified