2-Propenoic acid, 2-methyl-, polymer with butyl 2-propenoate, N-((2-methylpropoxy)methyl)-2-propenamide and 2-propenenitrile 67905-76-4 N-(Isobutoxymethyl)acrylamide, butyl acrylate, acrylonitrile, methacrylic acid polymer