The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 1990
Filed:
Jul. 07, 1989
Jiri Vacik, Prague, CS;
Jana Kudelkova, Prague, CS;
Ceskoslovenska akademie ved, Prague, CS;
Abstract
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 ##STR1## where R is the group CH.sub.2 .dbd.CH-- or CH.sub.2 .dbd.C(CH.sub.3)-- 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.