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:
Oct. 09, 2007
Filed:
Jul. 20, 2004
Nickey Ambrose, Mt. Vernon, IN (US);
Grant Hay, Evansville, IN (US);
Eugene David Herrmann, Clifton Park, NY (US);
Karkala Arun Kumar, Evansville, IN (US);
Philip Matthew Peters, Mt. Vernon, IN (US);
Joe Riello, Pittsfield, MA (US);
Nickey Ambrose, Mt. Vernon, IN (US);
Grant Hay, Evansville, IN (US);
Eugene David Herrmann, Clifton Park, NY (US);
Karkala Arun Kumar, Evansville, IN (US);
Philip Matthew Peters, Mt. Vernon, IN (US);
Joe Riello, Pittsfield, MA (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method of making an optical film comprises heating the optical film comprising greater than or equal to 80 wt. % polycarbonate to a sufficient temperature to stretch the optical film, wherein the weight percent is based on a total weight of the optical film; and stretching the optical film, wherein a resulting stretched optical film has a linear CTE measured in a direction parallel to a stretching direction of less than or equal to 50×10cm/cm/° C.