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:
Mar. 23, 1999
Filed:
May. 07, 1997
Applicant:
Inventors:
Edwin Charles Culbertson, Rock Hill, SC (US);
Randy Douglas Jester, Greer, SC (US);
John Arthur Penoyer, Greenville, SC (US);
Assignee:
Hoechst Celanese Corporation, Somerville, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
428-1 ; 427370 ; 4273935 ; 427536 ;
Abstract
The surface of an aromatic liquid crystalline polyester film is modified to have improved adhesion by: (a) applying an adhesion-promoting coating to the film; (b) subsequently heating the film to a temperature above the melting point of the polyester; and, (c) applying pressure to the heated film. Preferably, the film is placed between two portions of a release film (e.g. a polyimide) prior to applying pressure.