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:
May. 02, 2006
Filed:
Jun. 23, 2004
Applicant:
Gerald D. Treadway, Penngrove, CA (US);
Inventor:
Gerald D. Treadway, Penngrove, CA (US);
Assignee:
The Walman Optical Company, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A coating composition based upon at least partially hydrolyzed epoxy-functional alkoxy silanes and having particular utility in forming tintable, abrasion resistant coatings on lenses. Incorporation in the composition of a non-hydrolyzed epoxy-functional alkoxy silane provides a desired reduction in viscosity. Incorporation in the composition of a polyether surfactant provides a cured coating of the composition with increased tintability.