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:
Feb. 01, 2005
Filed:
Mar. 16, 2000
Kenneth A. Hodd, Wrexham, GB;
Keith Alfred Dillingham, Channel Islands, GB;
Jacqueline Degroot, Leek, NL;
Hendrik Haitjema, Peize, NL;
Kenneth A. Hodd, Wrexham, GB;
Keith Alfred Dillingham, Channel Islands, GB;
Jacqueline deGroot, Leek, NL;
Hendrik Haitjema, Peize, NL;
Pharmacia Groningen BV, Groningen, NL;
Abstract
The invention relates to macromolecular hydrophilic photocrosslinkers having polymeric backbones of substituted ethylene groups carrying photoactive groups. The photocrosslinkers are capable of producing, when being exposed to light of determined wavelengths above 305 nm, radicals which are retained on the macromolecular photocrosslinkers and reacting so as to accomplish a crosslinked network structure. The invention further relates to the preparation of photocrosslinkers, their use in different aqueous systems and their utility in production of medical devices including ophthalmic lenses.