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:
May. 14, 1985
Filed:
Dec. 07, 1983
Applicant:
Inventors:
Katsumi Kanda, Kudamatsu, JP;
Takaaki Okamura, Yanai, JP;
Takashi Minamigi, Hikari, JP;
Tsuneo Inui, Tokuyama, JP;
Yoshikazu Kondo, Kudamatsu, JP;
Assignee:
Toyo Kohan Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428626 ; 1563099 ; 156322 ; 428472 ; 428629 ; 428666 ; 428667 ; 428910 ;
Abstract
A method for the production of a metal sheet covered with polyester resin film which comprises laminating a polyester resin film which is preferably crystalline and oriented onto a metal sheet having a lower layer of metallic chromium and an upper layer of hydrated chromium oxide, which sheet has been heated to a temperature above the melting point of polyester resin film and then immediately quenching. This metal sheet covered with polyester resin film is excellent in corrosion resistance and formability.