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Precoated Plated Steel Sheet And Molded Product

Abstract: [Problem] To use a Zn-Al-Mg-based alloy plated steel sheet as a source sheet and increase corrosion resistance relating to corrosion under a coating film in a 0T bent section and the periphery of the same, without cracking or peeling occurring in the coating film even due to the 0T bending process. [Solution] A precoated plated steel sheet according to the present invention comprises: a plating layer that is located on one surface or both surfaces of a steel sheet, and comprises a Zn-Al-Mg-based alloy plating; a chemical conversion treatment film layer that is located on the plating layer; and a coating film layer that is located on the chemical conversion treatment film layer, wherein the coating film layer has a primer coating film layer and an upper layer coating film layer located on the primer coating film layer, and satsifies condition (a-1) and condition (a-2), and/or satisfies condition (b), and/or satisfies condition (c).

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
27 September 2023
Publication Number
36/2024
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
Parent Application

Applicants

NIPPON STEEL CORPORATION
6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Inventors

1. FURUKAWA, Hiroyasu
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
2. FUJII, Takashi
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
3. SHIBAO, Fumio
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
4. UEDA, Kohei
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
5. NAKAGAWA, Akira
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
6. YAMAMURA, Yuki
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
7. SASAKI, Naoto
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

# Name Date
1 202317064850-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [27-09-2023(online)].pdf 2023-09-27
2 202317064850-STATEMENT OF UNDERTAKING (FORM 3) [27-09-2023(online)].pdf 2023-09-27
3 202317064850-REQUEST FOR EXAMINATION (FORM-18) [27-09-2023(online)].pdf 2023-09-27
4 202317064850-PRIORITY DOCUMENTS [27-09-2023(online)].pdf 2023-09-27
5 202317064850-POWER OF AUTHORITY [27-09-2023(online)].pdf 2023-09-27
6 202317064850-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [27-09-2023(online)].pdf 2023-09-27
7 202317064850-FORM 18 [27-09-2023(online)].pdf 2023-09-27
8 202317064850-FORM 1 [27-09-2023(online)].pdf 2023-09-27
9 202317064850-DRAWINGS [27-09-2023(online)].pdf 2023-09-27
10 202317064850-DECLARATION OF INVENTORSHIP (FORM 5) [27-09-2023(online)].pdf 2023-09-27
11 202317064850-COMPLETE SPECIFICATION [27-09-2023(online)].pdf 2023-09-27
12 202317064850-Proof of Right [06-11-2023(online)].pdf 2023-11-06
13 202317064850-FORM 3 [06-02-2024(online)].pdf 2024-02-06