Title:
ELECTROLYTE AND ITS USE FOR THE DEPOSITION OF BLACK RUTHENIUM COATINGS AND COATINGS OBTAINED IN THIS WAY
Document Type and Number:
WIPO Patent Application WO/2012/171856
Kind Code:
A3
Abstract:
The invention relates to a ruthenium electrolyte which is suitable for the deposition of decorative and industrial layers having a particular blackness. The invention further relates to the use of the electrolyte of the invention in a process for the deposition of decorative and industrial layers of ruthenium having a particular blackness ("black ruthenium) on jewelry, decorative goods, consumer goods and industrial articles. The invention therefore likewise relates to corresponding layers and the articles coated in this way. The electrolyte is characterized in that it operates in the weakly acidic to alkaline pH range.
Inventors:
SCHRAMEK PHILIP (DE)
STEGMAIER MARTIN (DE)
TOMAZZONI MARIO (DE)
OBERST FRANK (DE)
STEGMAIER MARTIN (DE)
TOMAZZONI MARIO (DE)
OBERST FRANK (DE)
Application Number:
PCT/EP2012/060924
Publication Date:
March 27, 2014
Filing Date:
June 08, 2012
Export Citation:
Assignee:
UMICORE GALVANOTECHNIK GMBH (DE)
SCHRAMEK PHILIP (DE)
STEGMAIER MARTIN (DE)
TOMAZZONI MARIO (DE)
OBERST FRANK (DE)
SCHRAMEK PHILIP (DE)
STEGMAIER MARTIN (DE)
TOMAZZONI MARIO (DE)
OBERST FRANK (DE)
International Classes:
C25D3/52; C25D7/00
Foreign References:
| JP2001049485A | 2001-02-20 | |||
| EP1975282A1 | 2008-10-01 | |||
| US6251249B1 | 2001-06-26 | |||
| US4297178A | 1981-10-27 |
Other References:
DATABASE WPI Week 198144, Derwent World Patents Index; AN 1981-80818D, XP002718782
Attorney, Agent or Firm:
RETZOW, Stefan (PatenteRodenbacher Chaussee 4, Hanau-Wolfgang, DE)
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