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. 26, 2013
Filed:
Feb. 09, 2007
Applicants:
Duncan Henry Mackerron, Middlesbrough, GB;
Katsuyuki Hashimoto, Anpachi-gun, JP;
Inventors:
Duncan Henry MacKerron, Middlesbrough, GB;
Katsuyuki Hashimoto, Anpachi-gun, JP;
Assignee:
DuPont Teijin Films U.S. Limited Partnership, Chester, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/02 (2006.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/20 (2006.01); B32B 27/24 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); B32B 37/02 (2006.01); B32B 38/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process in which a wound roll of biaxially oriented polyester film having a glass transition temperature (Tg (° C.)) is annealed at a temperature T(° C.) above Tg where Tg<T≦Tg+100 (° C.) for a time t after thermal equilibrium where 1 hour≦t≦72 hours and cooled, for the purpose of improving the shrinkage of said polyester film.