2-Propenoic acid, 2-methyl-, polymer with butyl 2-methyl-2-propenoate, 2-((1,1-dimethylethyl)amino)ethyl 2-methyl-2-propenoate and rel-(1R,2R,4R)-1,7,7-trimethylbicyclo(2.2.1)hept-2-yl 2-methyl-2-propenoate 68155-97-5 Butyl methacrylate, isobornyl methacrylate, methacrylic acid, t-butylaminoethyl methacrylate polymer