2-Propenoic acid, 2-methyl-, polymer with butyl 2-propenoate, methyl 2-methyl-2-propenoate and 1-methyl-1,3-propanediyl bis(2-methyl-2-propenoate) 2-Propenoic acid, 2-methyl-, polymer with butyl 2-propenoate, methyl 2-methyl-2-propenoate and 1-methyl-1,3-propanediylbis(2-methyl-2-propenoate) 38684-16-1