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Title:
SURFACE-TREATED METAL MATERIAL AND METAL SURFACE TREATING AGENT
Document Type and Number:
WIPO Patent Application WO/2007/148801
Kind Code:
A1
Abstract:
Disclosed is a surface-treated metal material having a coating film containing at least a polyurethane resin and silicon oxide on at least a part of the surface of a metal material. The polyurethane resin has a urea bond and one or more of a siloxane bond, a dehydration condensation bond of a silanol group and another functional group, and a silanol residue. The total amount of silicon-containing compounds relative to the solid content of the coating film is not less than 1.6% by mass but not more than 25% by mass in terms of silicon, and the total amount of the urea bonds and urethane bonds relative to the total resin content is not less than 0.1% by mass but not more than 10% by mass in terms of nitrogen atomic weight. Also disclosed is a metal surface treating agent for obtaining such a coating film.

Inventors:
MORISHITA ATSUSHI (JP)
FUDA MASAHIRO (JP)
KANAI HIROSHI (JP)
KOSUGE HIROSHI (JP)
TAWA TSUTOMU (JP)
Application Number:
PCT/JP2007/062633
Publication Date:
December 27, 2007
Filing Date:
June 22, 2007
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
MITSUI CHEMICALS POLYURETHANES (JP)
MORISHITA ATSUSHI (JP)
FUDA MASAHIRO (JP)
KANAI HIROSHI (JP)
KOSUGE HIROSHI (JP)
TAWA TSUTOMU (JP)
International Classes:
C23C26/00; B32B15/095; C09D5/00; C09D5/02; C09D7/12; C09D175/12
Foreign References:
JP2001234119A2001-08-28
JP2001019902A2001-01-23
JP2001164182A2001-06-19
JP2006052462A2006-02-23
JP2001524558A2001-12-04
JP2002363484A2002-12-18
JP2003027256A2003-01-29
JPS5347774B21978-12-23
JPS5831390B21983-07-05
JPH04293789A1992-10-19
JPH067950B21994-02-02
JPH0671579A1994-03-15
JP2001181855A2001-07-03
JP2001059184A2001-03-06
JP2001164182A2001-06-19
JP2001234119A2001-08-28
Other References:
KANAI H.: "Suisei Toso no Jitsuyoka to Usukohan Toso eno Tekiyo", TOSO GIJUTSU, vol. 41, no. 2, 1 February 2002 (2002-02-01), pages 58 - 62, XP003020200
MORI Y., YAMAZAKI M., SHINTO H.: "Junkatsu Koban no Himaku Sekkei", CURRENT ADVANCES IN MATERIALS AND PROCESSES, vol. 11, no. 6, September 1998 (1998-09-01), pages 1215, XP003020201
Attorney, Agent or Firm:
SHIGA, Masatake et al. (YaesuChuo-ku, Tokyo 53, JP)
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