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:
Aug. 07, 2001
Filed:
Dec. 08, 1998
Hiroyuki Iwashita, Yamaguchi-ken, JP;
Fumiko Gotoh, Yamaguchi-ken, JP;
Atsuo Tanaka, Yamaguchi-ken, JP;
Toyo Kohan Co., Ltd., Tokyo, JP;
Abstract
The present invention produces a polyethylene terephthalate resin covered metal sheet having extremely excellent formability, which can be available for uses in which severe forming is practiced such as drawing, drawing and ironing and drawn and stretch forming as well as the composite forming consisting of drawn and stretch forming followed by ironing. A biaxially oriented film consisting of polyethylene terephthalate resin having a low temperature crystallization temperature ranging from 130° C. to 165° C. is covered at least on one side of a metal sheet by heat bonding in the way that the biaxial orientation of the film of the polyethylene terephthalate resin after being covered is gradually increasing from the contacting portion of the film to the metal sheet to the surface portion of the film.