Invention Grant
- Patent Title: Steel sheet for containers and method for producing steel sheet for containers
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Application No.: US16967642Application Date: 2019-02-08
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Publication No.: US11542620B2Publication Date: 2023-01-03
- Inventor: Yoshiaki Tani , Shigeru Hirano
- Applicant: NIPPON STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JPJP2018-022296 20180209
- International Application: PCT/JP2019/004740 WO 20190208
- International Announcement: WO2019/156245 WO 20190815
- Main IPC: C25D5/10
- IPC: C25D5/10 ; C25D11/38 ; B65D65/42 ; B32B15/04

Abstract:
A steel sheet for a container according to the present invention includes: a base steel sheet; a metal chromium layer; and a chromium-containing layer, in which the metal chromium layer is located on at least one surface of the base steel sheet, the chromium-containing layer is located on the metal chromium layer and contains a granular trivalent chromium compound, or contains a granular trivalent chromium compound and granular metal chromium, the metal chromium layer and the chromium-containing layer are separately disposed in two layers on the base steel sheet, in the chromium-containing layer, an average particle size of the trivalent chromium compound and the metal chromium is 10 nm or more and 100 nm or less, and an adhesion amount of the chromium-containing layer is 1.0 mg/m2 or more and 100 mg/m2 or less in terms of a Cr content.
Public/Granted literature
- US20210254235A1 STEEL SHEET FOR CONTAINERS AND METHOD FOR PRODUCING STEEL SHEET FOR CONTAINERS Public/Granted day:2021-08-19
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