Copolymer af N-vinylcaprolactam, N-vinyl-2-pyrrolidon og dimethylaminoethylmethacrylat, i form af opløsning i ethanol med indhold af copolymer på 34 vægtprocent og derover, men ikke over 40 vægtprocent
Copolymer of N-vinylcaprolactam, N-vinyl-2-pyrrolidone and dimethylaminoethyl methacrylate, in the form of a solution in ethanol containing by weight 34 % or more but not more than 40 % of copolymer