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:
Nov. 09, 2021
Filed:
Jul. 07, 2015
Applicant:
Ocutec Limited, Lanarkshire, GB;
Inventors:
Assignee:
Ocutec Limited, Lanarkshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/66 (2006.01); C08G 18/75 (2006.01); G02B 1/04 (2006.01); C08G 18/61 (2006.01); C08G 18/48 (2006.01); C08G 18/65 (2006.01); B29D 11/00 (2006.01); C08J 3/075 (2006.01); C08K 5/13 (2006.01);
U.S. Cl.
CPC ...
C08G 18/6674 (2013.01); B29D 11/00038 (2013.01); C08G 18/4808 (2013.01); C08G 18/4833 (2013.01); C08G 18/4837 (2013.01); C08G 18/61 (2013.01); C08G 18/6517 (2013.01); C08G 18/6677 (2013.01); C08G 18/758 (2013.01); C08J 3/075 (2013.01); C08K 5/13 (2013.01); G02B 1/043 (2013.01); C08G 2210/00 (2013.01); C08J 2375/08 (2013.01);
Abstract
The present invention provides a poly(ethylene) glycol based polyurethane polymer composition, particularly useful in the production of contact lenses. Generally the reactant mixture used to form the polymer includes a branched chain extender. There is also provided a method of manufacturing a contact lens formed from such a polymer.