1-Ethenyl-2-pyrrolidinone, polymer with 2-methylene-1,3-propanediyl bis(methylcarbamate) 2-Pyrrolidinone, 1-ethenyl-, polymer with 2-methylene-1,3-propanediyl bis(methylcarbamate) 68045-74-9 BAY-I-7433 Copolymer of 2-methylenetrimethylene bis(methylcarbamate) and 1-vinyl-2-pyrrolidone in the approximate ratio of 1 part to 4 parts, respectively Copolymer of N-vinylpyrrolidone and 1,1-di(methylaminocarbonyloxymethyl) ethylene Copovithane Copovithane [BAN]