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:
Jul. 27, 2004
Filed:
Feb. 25, 2002
Applicant:
Inventors:
Kenneth A. Hodd, Caer-Estyn, GB;
Keith Alfred Dillingham, Channel Islands, GB;
Assignee:
Pharmacia Groningen BV, Groningen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/14 ; A61F 2/16 ; C08J 3/28 ; C08L 8/304 ; C08F 4/00 ;
U.S. Cl.
CPC ...
A61F 2/14 ; A61F 2/16 ; C08J 3/28 ; C08L 8/304 ; C08F 4/00 ;
Abstract
Macromolecular photocrosslinkers have polymeric backbones of substituted siloxane groups carrying photoactive groups. When exposed to light of wavelength above 305 nm, the photocrosslinkers are adapted to generate radicals which are retained on the macromolecular photocrosslinker and react to form a crosslinked network structure. The photocrosslinkers may be used in the production of medical devices, including ophthalmic lenses.