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 代理人
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