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:
Jul. 10, 1990
Filed:
Oct. 24, 1988
Applicant:
Inventors:
Jean-Marc Frances, Vcilleurbanne, FR;
Georges Wajs, Ivry sur Seine, FR;
Assignee:
Essilor International (Compagnie Generale d'Optique), Creteil, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525 542 ; 26433111 ; 264340 ; 525 5421 ; 525 5424 ; 525474 ; 525478 ; 525476 ;
Abstract
The wettable silicone elastomer is obtained by crosslinking of a composition of epoxidized silicones. The elastomer thus obtained is made wettable by grafting saccharide compounds on epoxy groups of the elastomer. The invention is applied in particular to the manufacture of contact lenses.