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:
Nov. 18, 2008
Filed:
Aug. 28, 2002
William P. Blackburn, Safety Harbor, FL (US);
Michael B. Levesque, Tampa, FL (US);
Kevin W. Seybert, McKeesport, PA (US);
Jeanine A. Conklin, Swissvale, PA (US);
Nancyanne Gruchacz, Clearwater, FL (US);
William P. Blackburn, Safety Harbor, FL (US);
Michael B. Levesque, Tampa, FL (US);
Kevin W. Seybert, McKeesport, PA (US);
Jeanine A. Conklin, Swissvale, PA (US);
Nancyanne Gruchacz, Clearwater, FL (US);
Transitions Optical, Inc., Pinellas Park, FL (US);
Abstract
Describes a photochromic plastic article, e.g., an ophthalmic photochromic article, such as a lens, in which the article includes (1) a polymeric substrate, such as a thermoset or thermoplastic substrate, (2) a photochromic polymeric coating appended to at least one surface of the substrate, the photochromic polymeric coating containing a photochromic amount of at least one organic photochromic material, e.g., spirooxazine, naphthopyran and/or fulgide, and (3) a radiation-cured, acrylate-based film coherently appended to the photochromic coating, the acrylate-based film being (a) resistant to removal by aqueous solutions of inorganic caustic, e.g., potassium hydroxide, (b) compatible with organo silane-containing abrasion-resistant coating, and (c) harder than said photochromic coating. Describes also the aforedescribed photochromic article having an abrasion-resistant coating affixed to the radiation-cured acrylate-based film, e.g., an abrasion-resistant coating comprising an organo silane; and a photochromic article having an antireflective coating affixed to the abrasion-resistant coating.