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:
Aug. 13, 1985
Filed:
Nov. 01, 1982
Applicant:
Inventors:
Donald J Ratkowski, Mesa, AZ (US);
Ping-Chang Lue, Scottsdale, AZ (US);
Assignee:
Paragon Optical, Inc., Mesa, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526279 ; 523106 ;
Abstract
A copolymer composition, especially adapted for use in fabricating a contact lens comprises a copolymer of comonomers which include about 1-95 parts by weight of hydroxy silane esters of acrylic or methacrylic acid having a silanol functionality of 10-20% and about 99-5 parts by weight of a C.sub.1 -C.sub.20 alkyl ester of acrylic or methacrylic acid. Contact lenses and contact lens buttons are formed of such copolymer by conventional techniques and also by injection molding and by compression molding.