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:
Sep. 25, 2007
Filed:
Sep. 29, 2004
Applicants:
Thomas M. Laney, Spencerport, NY (US);
Kenneth W. Best, Jr., Hilton, NY (US);
Robert P. Bourdelais, Pittsford, NY (US);
Inventors:
Thomas M. Laney, Spencerport, NY (US);
Kenneth W. Best, Jr., Hilton, NY (US);
Robert P. Bourdelais, Pittsford, NY (US);
Assignee:
Rohm and Haas Denmark Finance A/S, Copenhagen, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A reflective optical film comprises a layer containing a polyester voided with inorganic particles such as barium sulfate in a size and an amount sufficient to provide a visible light reflectivity of at least 93%, a void volume of 40 to 70%, the film at least (1) having a thickness of less than 150 μm, or (2) containing UV particles in amounts sufficient to provide a UV light reflectivity of less than 40%.