发明授权
EP2705176B1 ELECTROPLATING BATH AND METHOD FOR PRODUCING DARK CHROMIUM LAYERS
有权
VERFAHREN ZER HERSTELLUNG VON DUNKLEN CHROMSCHICHTEN的GALVANISIERUNGSBAD
- 专利标题: ELECTROPLATING BATH AND METHOD FOR PRODUCING DARK CHROMIUM LAYERS
- 专利标题(中): VERFAHREN ZER HERSTELLUNG VON DUNKLEN CHROMSCHICHTEN的GALVANISIERUNGSBAD
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申请号: EP12717725.1申请日: 2012-04-27
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公开(公告)号: EP2705176B1公开(公告)日: 2016-04-13
- 发明人: SCHULZ, Klaus-Dieter , WACHTER, Philipp , HARTMANN, Philip
- 申请人: Atotech Deutschland GmbH
- 申请人地址: Erasmusstraße 20 10553 Berlin DE
- 专利权人: Atotech Deutschland GmbH
- 当前专利权人: Atotech Deutschland GmbH
- 当前专利权人地址: Erasmusstraße 20 10553 Berlin DE
- 代理机构: Wonnemann, Jörg
- 优先权: EP11164641 20110503
- 国际公布: WO2012150198 20121108
- 主分类号: C25D3/06
- IPC分类号: C25D3/06 ; C25D3/08 ; C25D3/10
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.
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