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Title:
ORGANIC RESIN COATED STEEL
Document Type and Number:
Japanese Patent JP2012081670
Kind Code:
A
Abstract:

To provide organic resin coated steel of which a life can be prolonged further as compared with steel manufactured by a conventional technology.

The organic resin coated steel includes an iron phosphate chemical conversion treatment layer, an aluminum phosphate chemical conversion treatment layer, and an organic resin layer laminated on a surface of the steel in this order from a steel side. An average thickness of the iron phosphate chemical conversion treatment layer is 0.1-1 μm. The aluminum phosphate chemical conversion treatment layer contains metal M selected from P, Al, B, and Mg or Ca. A composition of the aluminum phosphate chemical conversion treatment layer includes a binder giving Al2O3/P2O5=0.2-0.6, B2O3/P2O5=0.01-0.1, MO/P2O5=0.01-0.2 at a molar ratio in terms of anhydrous oxide, and inorganic extender pigment.


Inventors:
YAMAZAKI TAKAO
HARADA YOSHIYUKI
Application Number:
JP2010230532A
Publication Date:
April 26, 2012
Filing Date:
October 13, 2010
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
B32B15/08; B32B15/095; B32B27/20
Domestic Patent References:
JP2007313885A2007-12-06
JP2009024211A2009-02-05
JPH09272982A1997-10-21
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi
Kazuo Yoshii