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. 03, 1987
Filed:
Jan. 07, 1986
Applicant:
Inventors:
Joonsup Park, Arlington, TX (US);
Joseph J Falcetta, Arlington, TX (US);
Assignee:
Alcon Laboratories, Fort Worth, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C08L / ; C08L / ; C08F / ;
U.S. Cl.
CPC ...
523107 ; 524547 ; 524806 ; 526264 ; 526279 ;
Abstract
Hydrogel polymeric material, suitable for preparing optical devices such as contact lenses. The material is of improved oxygen permeability and mechanical properties in comparison with conventional hydrogels. It comprises, in addition to the hydrogel material, from about 5% to about 60% by weight of a siloxane comonomer containing both an aromatic ring and vinyl functionality. Its cooperation and combination of performance characteristics with traditional hydrogel forming monomers provides a very useful polymeric material for making lenses of the soft hydrogel type.