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. 20, 2007
Filed:
May. 20, 2005
Christopher A. Coenjarts, Evansville, IN (US);
Jianbo Di, Evansville, IN (US);
John Graf, Ballston Lake, NY (US);
Emine Elif Gurel, Evansville, IN (US);
David L. Hartter, Pittsfield, MA (US);
Grant Hay, Evansville, IN (US);
Todd M. Loehr, Evansville, IN (US);
Philip M. Peters, Mt. Vernon, IN (US);
Joseph A. Riello, Jr., Pittsfield, MA (US);
Shixiong Zhu, Evansville, IN (US);
Christopher A. Coenjarts, Evansville, IN (US);
Jianbo Di, Evansville, IN (US);
John Graf, Ballston Lake, NY (US);
Emine Elif Gurel, Evansville, IN (US);
David L. Hartter, Pittsfield, MA (US);
Grant Hay, Evansville, IN (US);
Todd M. Loehr, Evansville, IN (US);
Philip M. Peters, Mt. Vernon, IN (US);
Joseph A. Riello, Jr., Pittsfield, MA (US);
Shixiong Zhu, Evansville, IN (US);
General Electric Company, Schenectady, NY (US);
Abstract
A light-diffusing film comprises about 90 wt. % to about 99.999 wt. % polycarbonate, wherein the polycarbonate comprises a yellowness index of about 0.8 to about 1.5 as measured in accordance with ASTM E313-73 (D1925); about 0.001 wt. % to about 3 wt. % light-diffusing particles; wherein weight percents are based on a total weight of the light-diffusing film; and wherein the light-diffusing film comprises a light transmission of about 45% to about 65% as measured in accordance with ASTM D1003-00, and a hiding power of 0 to about 0.5.