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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.:

US 9133346 B1

PDFFull Text
Date of Patent:
Sep. 15, 2015

Filed:

Feb. 28, 2013

Surface-coated aluminum and zinc plated steel sheet and method of preparing same

Applicants:

Nippon Steel & Sumikin Coated Sheet Corporation, Tokyo, JP;

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Nihon Parkerizing Co., Ltd., Tokyo, JP;

Inventors:

Nobuki Shiragaki, Hyogo, JP;

Tomokazu Sugitani, Osaka, JP;

Hiroyuki Oyokawa, Chiba, JP;

Satoru Yonetani, Osaka, JP;

Hiroshi Kanai, Chiba, JP;

Nobuyuki Shimoda, Tokyo, JP;

Ichiro Oura, Kanagawa, JP;

Hitoshi Kikuchi, Bangkok, TH;

Assignees:

NIPPON STEEL & SUMIKIN COATED SHEET CORPORATION, Tokyo, JP;

NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;

NIHON PARKERIZING CO., LTD., Tokyo, JP;

Attorney:

Cheng Law Group, PLLC

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
B32B 15/08 (2006.01); B32B 15/09 (2006.01); B32B 15/18 (2006.01); B32B 15/20 (2006.01); C09D 5/08 (2006.01); B05D 3/00 (2006.01); B05D 3/02 (2006.01); C23C 28/00 (2006.01); C23C 26/00 (2006.01); B05D 1/36 (2006.01); C09D 133/10 (2006.01); C09D 133/12 (2006.01); C09D 175/06 (2006.01); C23C 30/00 (2006.01); C09D 7/12 (2006.01); B05D 7/16 (2006.01); B05D 7/00 (2006.01);
U.S. Cl.
CPC ...
C09D 5/08 (2013.01); B05D 1/36 (2013.01); B05D 3/02 (2013.01); B05D 3/0254 (2013.01); B32B 15/08 (2013.01); C09D 133/10 (2013.01); C09D 133/12 (2013.01); C09D 175/06 (2013.01); C23C 26/00 (2013.01); C23C 28/00 (2013.01); C23C 30/00 (2013.01); B05D 7/16 (2013.01); B05D 7/51 (2013.01); C09D 7/12 (2013.01); Y10T 428/12569 (2015.01); Y10T 428/12757 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/27 (2015.01);
Abstract

A surface-coated aluminum and zinc plated steel sheet in accordance with the present invention includes: a plated steel sheet; a composite coating film formed by applying an aqueous surface treatment agent on the plated steel sheet and drying the aqueous surface treatment agent. The aqueous surface treatment agent contains a water dispersible resin (A), a cobalt compound (B), and water, and has a pH within a range of 7.5 to 10. The composite coating film contains the water dispersible resin (A) and the cobalt compound (B). A percentage by mass of the water dispersible resin (A) in the composite coating film is 90% or more. A mass of the composite coating film per one surface of the plated steel sheet falls within a range of 0.5 to 3.5 g/m.

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