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:
Jul. 21, 1998
Filed:
Nov. 04, 1996
David Richard Fagerburg, Kingsport, TN (US);
Jack Donald Vicars, Kingsport, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
A UV stabilized multi-layer structure which has an easily visible UV protective layer comprises a UV protective layer and an underlying polymeric layer. The polymeric layer is either a polyester or a polycarbonate. The UV protective layer, which is exposed to UV radiation and protects the polymeric layer, comprises a UV absorbing compound, an optical brightener present in an amount sufficient to cause visual illumination of the UV protective layer upon exposure to a light source and a polymeric base material of either a polyester, polycarbonate or acrylic. Upon exposure to a UV light or white light source the UV protective layer is visibly illuminated. A method of detecting the UV protective layer in the UV stabilized multi-layer structure is also provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile