2-Propenoic acid, butyl ester, polymer with ethenyl acetate, 2-ethylhexyl 2-propenoate, 2-propenenitrile and N-(1,1,3,3-tetramethylbutyl)-2-propenamide 67893-20-3 Ethenyl acetate, butyl 2-propenoate, 2-ethylhexyl 2-propenoate, 2-propenenitrile, N-(1,1,3,3-tetramethylbutyl)-2-propenamide polymer