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:
Dec. 08, 1987
Filed:
Apr. 26, 1985
Applicant:
Inventor:
Thomas B Harvey, III, Scottsdale, AZ (US);
Assignee:
Sola U.S.A. Inc., Phoenix, AZ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526279 ; 523107 ;
Abstract
A monomer for making a contact lens with improved oxygen permeability and stability is disclosed as having a first portion for increasing wettability and a second portion for increasing oxygen permeability. The first portion includes a side-chain functionality of the structural formula: ##STR1## and is hydrophilic. The second portion includes a siloxane moiety, and is usually hydrophobic. Also disclosed is a cross-linking agent, a polymeric material for making contact lenses, a method for making the polymeric material, and a method for making contact lenses from the material.