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. 02, 2021
Filed:
Aug. 16, 2017
Toyo Kohan Co., Ltd., Tokyo, JP;
Toyo Seikan Group Holdings, Ltd., Shinagawa-Ku, JP;
Kunihiro Yoshimura, Yamaguchi, JP;
Naomi Taguchi, Yamaguchi, JP;
Satoko Fukutomi, Yamaguchi, JP;
Wataru Kurokawa, Kanagawa, JP;
Munemitsu Hirotsu, Kanagawa, JP;
Mitsuhide Aihara, Kanagawa, JP;
Satoshi Mikami, Kanagawa, JP;
TOYO KOHAN CO., LTD., Tokyo, JP;
Abstract
Provided is a surface-treated steel sheet with a compound layer containing F and composed essentially or Zr at least on one surface thereof, wherein the Zr amount is 80 to 350 mg/mand the F amount is 0.5 to 10 mg/mwithin the layer, and an organic resin coated metal container manufactured using the surface-treated steel sheet. The surface-treated steel sheet of the present invention is manufactured through forming a layer having the Zr amount of 80 to 350 mg/mat least on one surface of a steel sheet by cathode electrolytic treatment in an aqueous solution containing a Zr ion and F ion, and subsequently adjusting the surface to control the F amount to 0.5 to 10 mg/mby one or more treatments selected from immersion and spraying with an ion-containing aqueous solution and cathode electrolytic treatment in the ion-containing aqueous solution.