Hydrophilic copolymer and the method for producing thereof

Abstract From the Canadian patent

The solution pertains to a hydrophilic copolymer suitable in particular for contact and intraocular lenses and medical applications and to a method for its production. The solution consists in a hydrophilic copolymer which can be prepared by copolymerization of 5 to 95 wt.-% 1-vinyl-2-pyrrolidone with 95 to 5 wt.-% alkylene glycol acetate methacrylates or acrylates of the general formula I (I), where R is the group CH2=CH- or CH2=C(CH3)- and n means an integer 1 to 3, in the presence of 0.01 to 50 wt.-% of a crosslinking agent under the conditions of radical copolymerization in the presence of radical initiators.