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:
Oct. 16, 2001
Filed:
Jun. 16, 1999
Beat Müller, Marly, CH;
Novartis AG, Basel, CH;
Abstract
The invention relates to a process for the production of moldings, in particular contact lenses, in which a water-soluble crosslinkable polymer is crosslinked in solution, and to moldings, in particular contact lenses, obtainable by this process. The present invention likewise relates to novel crosslinkable polymers comprising units containing a crosslinkable group, units containing an acidic group and/or units containing a basic group which can be employed in the novel process, in particular derivatives of a polyvinyl alcohol having a molecular weight of at least about 2000, and to crosslinked polymers, either homopolymers or copolymers, made from these novel crosslinkable polymers, a process for the preparation of the novel crosslinkable polymers and the homopolymers and copolymers obtainable therefrom, to moldings made from said homopolymers or copolymers, in particular contact lenses made from these homopolymers or copolymers, and to a process for the production of contact lenses using said homopolymers or copolymers.