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

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9133346
APP PUB NO 20150044498A1
SERIAL NO

14381203

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Abstract

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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/m2.

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Patent Owner(s)

  • NIHON PARKERIZING CO., LTD.;NIPPON STEEL & SUMIKIN COATED SHEET CORPORATION;NIPPON STEEL & SUMITOMO METAL CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kanai, Hiroshi Chiba, JP 124 1443
Kikuchi, Hitoshi Bangkok, TH 63 825
Oura, Ichiro Kanagawa, JP 5 3
Oyokawa, Hiroyuki Chiba, JP 4 17
Shimoda, Nobuyuki Tokyo, JP 12 40
Shiragaki, Nobuki Hyogo, JP 4 12
Sugitani, Tomokazu Osaka, JP 3 3
Yonetani, Satoru Osaka, JP 3 3

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