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:
Sep. 07, 2010
Filed:
Jul. 24, 2008
Applicant:
Charles Freeman, Granbury, TX (US);
Inventor:
Charles Freeman, Granbury, TX (US);
Assignee:
Alcon, Inc., Hunenberg, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 18/10 (2006.01); C08F 20/18 (2006.01); C08F 220/18 (2006.01); C08F 220/10 (2006.01); A61F 2/16 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
High refractive index copolymers suitable for use in ophthalmic devices are disclosed. The copolymers comprise two or more aryl hydrophobic monomers and a non-polymerizable propylene oxide-ethylene oxide-propylene oxide block copolymer surfactant having a molecular weight of approximately 3600 and approximately 40% ethylene oxide units by weight. The copolymers have a reduced tendency to form glistenings when stored in water at physiological temperatures compared to similar copolymers lacking the non-polymerizable surfactant.