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Title:
SURFACE-TREATED METAL MATERIAL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2010/131756
Kind Code:
A1
Abstract:
Provided are a surface-treated metal material consisting of a film formed on the surface of a metal material, and a manufacturing method therefor. The film comprises an organic resin (A) having a glass transition point greater than 35°C and no greater than 100°C, and an organic resin (B) having a glass transition point greater than 100°C and no greater than 250°C. The difference between the glass transition point of the two organic resins (A and B) is at least 50°C. The film does not contain substances that burden the environment, such as hexavalent chromium, and has superb press formability, post-forming corrosion resistance, and resistance to scratches.

Inventors:
FUJITA, Soshi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
藤田 宗士 (〒71 東京都千代田区丸の内二丁目6番1号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
MORISHITA, Atsushi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
森下 敦司 (〒71 東京都千代田区丸の内二丁目6番1号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
Application Number:
JP2010/058239
Publication Date:
November 18, 2010
Filing Date:
May 10, 2010
Export Citation:
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Assignee:
NIPPON STEEL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区丸の内二丁目6番1号 Tokyo, 〒1008071, JP)
FUJITA, Soshi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
藤田 宗士 (〒71 東京都千代田区丸の内二丁目6番1号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
MORISHITA, Atsushi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
International Classes:
B32B15/08; C09D5/08; C09D7/12; C09D201/00; C23C26/00
Domestic Patent References:
2005-08-04
Foreign References:
JPH0711089A1995-01-13
JP2003027256A2003-01-29
JP2006022363A2006-01-26
JP2007075777A2007-03-29
JP2008025023A2008-02-07
JP2001164182A2001-06-19
JP2000239690A2000-09-05
JPH08267002A1996-10-15
JP2007075777A2007-03-29
JP2003073856A2003-03-12
JP2001271173A2001-10-02
JP2004338397A2004-12-02
JP2004018887A2004-01-22
Other References:
See also references of EP 2431171A1
Attorney, Agent or Firm:
AOKI, Atsushi et al. (SEIWA PATENT & LAW, Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, 〒1058423, JP)
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Claims: