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:
Jun. 29, 1999
Filed:
Jan. 07, 1997
Applicant:
Inventors:
Theodore L Parker, Danville, CA (US);
David S Soane, Piedmont, CA (US);
Nam Thanh Le, San Jose, CA (US);
Anthony Lam, San Jose, CA (US);
Assignee:
2C Optics, Inc., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428216 ; 428213 ; 428215 ; 428217 ; 428412 ; 4284233 ; 4284244 ; 428520 ; 428522 ;
Abstract
An abrasion resistant, radiation or heat curable dual composition is applied to a polymer substrate, such as an opthamlic lens. An abrasion enhancement layer is deposited on a surface of the substrate. The abrasion enhancement layer has a modulus of M.sub.1 and a Shore A value of 50 or less. A top coating is deposited on the abrasion enhancement layer. It has a modulus of M.sub.2 that is greater than M.sub.1. The top coating has an abrasion resistance Bayer Haze Gain ratio of 1.0 or greater.