发明名称 |
ELECTROPLATING BATH AND METHOD FOR PRODUCING DARK CHROMIUM LAYERS |
摘要 |
The invention relates to methods and plating baths for electrodepositing a dark chromium layer on a workpiece. The trivalent chromium electroplating baths comprise sulphur compounds and the methods for electrodepositing a dark chromium layer employ these trivalent chromium electroplating baths. The dark chromium deposits and workpieces carrying dark chromium deposits are suited for application for decorative purposes. |
申请公布号 |
EP2705176(B1) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20120717725 |
申请日期 |
2012.04.27 |
申请人 |
ATOTECH DEUTSCHLAND GMBH |
发明人 |
SCHULZ, KLAUS-DIETER;WACHTER, PHILIPP;HARTMANN, PHILIP |
分类号 |
C25D3/06;C25D3/08;C25D3/10 |
主分类号 |
C25D3/06 |
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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