Title:
NON-CHROMATE RUST-PREVENTIVE SURFACE TREATING AGENT FOR METALLIC MEMBER HAVING ZINC SURFACE, AND METALLIC MEMBER HAVING ZINC SURFACE COATED WITH THE RUST-PREVENTIVE COATING FILM
Document Type and Number:
WIPO Patent Application WO/2007/119812
Kind Code:
A1
Abstract:
Disclosed is a non-chromate rust-preventive surface treating agent which can form, on a zinc surface of a metal member, a silica-containing coating film which hardly causes cracking or detaching and can impart good anti-rust properties to the surface. The agent comprises a solution of an alkoxysilane oligomer having a weight average molecular weight of 1,000 to 10,000 in an alcohol, wherein 2.5 to 15% of silicon atoms in the alkoxysilane oligomer molecule are substituted by titanium atoms. The alkoxysilane oligomer which is partially substituted by titanium can be produced by reacting a titanium compound with a tetraalkoxysilane monomer or an alkoxysilane oligomer in an alcoholic solution, wherein the titanium compound can be prepared by chelating about half of alkoxide groups in titanium tetraalkoxide.
Inventors:
ENDO YASUHIKO (JP)
NOGAMI HIDEAKI (JP)
WATANABE SHUNJIRO (JP)
ADACHI SHOICHIRO (JP)
KAN YUKIYASU (JP)
NOGAMI HIDEAKI (JP)
WATANABE SHUNJIRO (JP)
ADACHI SHOICHIRO (JP)
KAN YUKIYASU (JP)
Application Number:
PCT/JP2007/058137
Publication Date:
October 25, 2007
Filing Date:
April 13, 2007
Export Citation:
Assignee:
INST TECH PRECISION ELECT (JP)
ENDO YASUHIKO (JP)
NOGAMI HIDEAKI (JP)
WATANABE SHUNJIRO (JP)
ADACHI SHOICHIRO (JP)
KAN YUKIYASU (JP)
ENDO YASUHIKO (JP)
NOGAMI HIDEAKI (JP)
WATANABE SHUNJIRO (JP)
ADACHI SHOICHIRO (JP)
KAN YUKIYASU (JP)
International Classes:
C09D185/00; B05D5/00; B05D7/14; B05D7/24; B32B15/08; C09D1/00; C09D5/08; C09D129/14; C09D183/02; C09D183/04; C09D183/07; C09D201/00; C23C22/02
Foreign References:
JPH03239774A | 1991-10-25 | |||
JPH07157715A | 1995-06-20 | |||
JP2004527626A | 2004-09-09 | |||
JP2005264170A | 2005-09-29 | |||
JPH0320377A | 1991-01-29 | |||
JPH05179201A | 1993-07-20 | |||
JP2005097719A | 2005-04-14 | |||
JP2005264170A | 2005-09-29 | |||
JP2006225761A | 2006-08-31 | |||
JPH07157715A | 1995-06-20 | |||
JP2003160759A | 2003-06-06 |
Other References:
See also references of EP 2009073A4
Attorney, Agent or Firm:
MORITA, Hiroshi (Sankyo Central Plaza Building 5F11-8, Nishi-Nippori 5-chom, Arakawa-ku Tokyo 13, JP)
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