Title:
ELECTROPLATING BATH AND METHOD FOR PRODUCING DARK CHROMIUM LAYERS
Document Type and Number:
WIPO Patent Application WO/2012/150198
Kind Code:
A3
Abstract:
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 work- pieces carrying dark chromium deposits are suited for application for decorative purposes.
Inventors:
SCHULZ KLAUS-DIETER (DE)
WACHTER PHILIPP (DE)
HARTMANN PHILIP (DE)
WACHTER PHILIPP (DE)
HARTMANN PHILIP (DE)
Application Number:
PCT/EP2012/057830
Publication Date:
July 25, 2013
Filing Date:
April 27, 2012
Export Citation:
Assignee:
ATOTECH DEUTSCHLAND GMBH (DE)
SCHULZ KLAUS-DIETER (DE)
WACHTER PHILIPP (DE)
HARTMANN PHILIP (DE)
SCHULZ KLAUS-DIETER (DE)
WACHTER PHILIPP (DE)
HARTMANN PHILIP (DE)
International Classes:
C25D3/06; C25D3/08; C25D3/10
Foreign References:
| US20090114544A1 | 2009-05-07 | |||
| US20070227895A1 | 2007-10-04 | |||
| US20100243463A1 | 2010-09-30 | |||
| JP2009035806A | 2009-02-19 | |||
| GB1596995A | 1981-09-03 | |||
| EP0100133A1 | 1984-02-08 | |||
| US4196063A | 1980-04-01 |
Attorney, Agent or Firm:
WONNEMANN, Jörg (Erasmusstraße 20, Berlin, DE)
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