发明名称 |
Rust inhibitive treatment method for metals |
摘要 |
<p>Provided is a chromium-free rust inhibitive paint for metals which is obtained by mixing a flaky zinc powder into a water reducible binder solution containing a water reducible resin emulsion and a water soluble silane coupling agent. A thin film of a silane compound having a hydrophobic group is added to particle surfaces of the flaky zinc powder, whereby the flaky metallic zinc powder exhibits water repellent property. When a surface treatment agent which contains an alkoxysilane oligomer as an essential component is applied to the paint film of a rust inhibitive paint for metals, this extends the time until red rusting occurs on painted metal products to not less than twice and prevents white rusting and black rusting for a long time. Rust inhibitive performance is further improved by blending a nano-sized powder of titanium dioxide, polyvinyl butyral, a silane coupling agent, etc., with the surface treatment agent.</p> |
申请公布号 |
EP1500686(B1) |
申请公布日期 |
2011.07.13 |
申请号 |
EP20040016843 |
申请日期 |
2004.07.16 |
申请人 |
HODEN SEIMITSU KAKO KENKYUSHO CO., LTD. |
发明人 |
ENDO, YASUHIKO;SAKAI, TOMIO;TAKASE, KENGO |
分类号 |
C09D5/10 |
主分类号 |
C09D5/10 |
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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