1,2-Benzenedicarboxylic acid, 3(or 4)-sulfo-, 1-(1-methyl-2-((2-methyl-1-oxo-2-propenyl)oxy)ethyl) ester, polymer with butyl 2-methyl-2-propenoate, butyl 2-propenoate, methyl 2-methyl-2-propenoate and 2-methyl-2-propenoic acid 65899-91-4 Butyl acrylate, butyl methacrylate, methacrylic acid, methyl methacrylate, methacryloxy isopropyl acid sulfophthalate