Title:
METHOD FOR ELECTRODEPOSITION OF CHROMIUM CONTAINING COATINGS FROM TRIVALENT CHROMIUM BASED ELECTROLYTES
Document Type and Number:
WIPO Patent Application WO/2014/079911
Kind Code:
A3
Abstract:
This invention relates to a method for electrodeposition of a chromium containing metal coating on an electrically conductive object from a trivalent chromium based electrolyte wherein the object acts as the cathode and wherein at least one hydrogen gas diffusion anode (GDA) is used, at which anode hydrogen gas is oxidised thereby preventing the occurrence of undesirable oxidation reactions which occur at a higher anodic overpotential when using an anode at which water is oxidised to oxygen and to the use thereof.
Inventors:
WIJENBERG JACQUES HUBERT OLGA JOSEPH (NL)
PORTEGIES ZWART ILJA (NL)
PORTEGIES ZWART ILJA (NL)
Application Number:
PCT/EP2013/074341
Publication Date:
April 02, 2015
Filing Date:
November 21, 2013
Export Citation:
Assignee:
TATA STEEL IJMUIDEN BV (NL)
International Classes:
C25D3/06; C25D5/48; C25D7/06; C25D11/38
Foreign References:
| EP0346981A1 | 1989-12-20 | |||
| JPH1136099A | 1999-02-09 | |||
| JPH07173695A | 1995-07-11 | |||
| US5198095A | 1993-03-30 | |||
| EP0501547A1 | 1992-09-02 |
Other References:
JACOBUS JOANNES THOMAS THERESIA VERMEIJLEN: "Behaviour of hydrogen gas diffusion anodes", 19 September 1994 (1994-09-19), XP055142256, Retrieved from the Internet [retrieved on 20140924]
Attorney, Agent or Firm:
BODIN, Andre (Group Intellectual Property Services - 3G.37PO Box 10000, CA IJmuiden, NL)
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