2-Propenoic acid, 2-methyl-, 2-hydroxyethyl ester, polymer with butyl 2-propenoate, methyl 2-methyl-2-propenoate and 2-propenoic acid 26351-99-5 68392-82-5 Acrylic acid, butyl acrylate, hydroxyethyl methacrylate, methyl methacrylate polymer Acrylic acid, methyl methacrylate, butyl acrylate, 2-hydroxyethyl methacrylate polymer