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. 22, 2006
Filed:
Dec. 10, 2003
Pyrano-quinolines, pyrano-quinolinones, combinations thereof, photochromic compositions and articles
Beon-kyu Kim, Gibsonia, PA (US);
Anil Kumar, Pittsburgh, PA (US);
Barry Van Gemert, Murrysville, PA (US);
Beon-Kyu Kim, Gibsonia, PA (US);
Anil Kumar, Pittsburgh, PA (US);
Barry Van Gemert, Murrysville, PA (US);
Transitions Optical, Inc., Pinellas Park, FL (US);
Abstract
Described are compositions of at least one material represented by a pyrano[3,2-c]quinoline structure, a pyrano[3,2-c]quinolinone structure or mixtures thereof. The pyrano[3,2-c]quinoline structure is characterized by having a nitrogen atom at the 6-position ring atom and an oxy-substituent at the 5-position ring atom. The pyrano[3,2-c]quinolinone structure is characterized by having a substituted nitrogen atom at the 6-position ring atom and an oxo-substituent at the 5-position ring atom, the nitrogen atom substituents being hydrogen, aliphatic substituents, cycloaliphatic substituents, aromatic substituents, heteroaromatic substituents or a combination thereof. Both of the pyrano[3,2-c]quinoline and pyrano[3,2-c]quinolinone structures are characterized by having two substituents at the 2-position ring atom. Also described are photochromic articles that contain or that have coatings or films containing at least one of the novel compositions or combinations thereof with other photochromic materials.