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, 2002
Filed:
Nov. 28, 2000
Applicant:
Inventors:
Michael S. Misura, Murrysville, PA (US);
Anil Kumar, Pittsburgh, PA (US);
Assignee:
Transitions Optical, Inc., Pinellas Park, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/10 ; C08K 5/1539 ; C08K 5/1545 ; C08K 5/3415 ; C08L 6/300 ;
U.S. Cl.
CPC ...
C08K 3/10 ; C08K 5/1539 ; C08K 5/1545 ; C08K 5/3415 ; C08L 6/300 ;
Abstract
Described are organic photochromic imbibition compositions that incorporate kinetic enhancing additive(s). Kinetic enhancing additives include epoxy-containing compounds, organic polyols and/or plasticizers that improve the performance of organic photochromic compounds as determined in the Photochromic Performance Test. Also described is a process for incorporating kinetic enhancing additives into polymeric substrates with organic photochromic compounds and the resulting photochromic articles produced by such a process.