发明名称 |
Aqueous passivating coating composition for zinc or zinc alloys and method for using same |
摘要 |
<p>Aqueous reaction solution contains trivalent chromium ions and nicotinic acid, its salts and derivatives. An independent claim is also included for a method for passivating surfaces of workpieces made from zinc and zinc alloys.</p> |
申请公布号 |
EP1816234(A1) |
申请公布日期 |
2007.08.08 |
申请号 |
EP20060001930 |
申请日期 |
2006.01.31 |
申请人 |
ATOTECH DEUTSCHLAND GMBH |
发明人 |
CAPPER, LEE;NOACK, ANDREAS |
分类号 |
C23C22/53;C23C22/34 |
主分类号 |
C23C22/53 |
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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