发明名称 |
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 |
摘要 |
Disclosed is a chromium-free rust-inhibitive surface treatment agent to form a siliceous film that rarely cracks or peels off and yields an excellent rust-inhibitive performance on zinc surfaces of a metal part. The chromium-free rust-inhibitive surface treatment agent is an alcoholic solution of alkoxysilane oligomer having weight-averaged molecular weight of 1,000 to 10,000, and 2.5 to 15% of silicon in molecules of the alkoxysilane oligomer has been replaced with titanium. To prepare partly titanium-replaced alkoxysilane oligomer, titanium compound, in which about a half of alkoxy groups in titanium tetraalkoxide has been chelated, is reacted with tetraalkoxysilane monomer or alkoxysilane oligomer in the alcoholic solution. |
申请公布号 |
EP2009073(A1) |
申请公布日期 |
2008.12.31 |
申请号 |
EP20070741573 |
申请日期 |
2007.04.13 |
申请人 |
HODEN SEIMITSU KAKO KENKYUSHO CO., LTD. |
发明人 |
ENDO, YASUHIKO;NOGAMI, HIDEAKI;WATANABE, SHUNJIRO;ADACHI, SHOICHIRO;KAN, YUKIYASU |
分类号 |
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 |
主分类号 |
C09D185/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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