Global Patent Index - EP 2649223 A2

EP 2649223 A2 20131016 - ELECTROLYTE FOR THE ELECTROCHEMICAL DEPOSITION OF GOLD ALLOYS AND PROCESS FOR THE PRODUCTION THEREOF

Title (en)

ELECTROLYTE FOR THE ELECTROCHEMICAL DEPOSITION OF GOLD ALLOYS AND PROCESS FOR THE PRODUCTION THEREOF

Title (de)

ELEKTROLYT FÜR DIE GALVANISCHE ABSCHEIDUNG VON GOLD-LEGIERUNGEN UND VERFAHREN ZU DESSEN HERSTELLUNG

Title (fr)

ÉLECTROLYTE POUR DÉPÔT PAR VOIE GALVANIQUE D'ALLIAGES D'OR ET SON PROCÉDÉ DE PRODUCTION

Publication

EP 2649223 A2 20131016 (DE)

Application

EP 11799631 A 20111207

Priority

  • DE 102010053676 A 20101207
  • EP 2011006155 W 20111207

Abstract (en)

[origin: WO2012076174A2] The present invention relates to cyanide-free electrolytes for the electrochemical deposition of binary and polynary alloys of gold, which contain an alkaline solution of anionic thiolate complexes of gold and metals which form alloys with gold. These electrolytes can be produced in a simple, environmentally friendly and economical way from commercially available aqueous solutions of sulphite complexes of gold and a number of salts of the corresponding alloy-forming metals, by addition of the thiols and setting of an alkaline pH of the electrolytic bath. The electrolytes display long-term stability and can be used for the electrochemical deposition of gold alloys. The present invention likewise relates to a process for producing the electrolytes mentioned.

IPC 8 full level

C25D 3/62 (2006.01)

CPC (source: EP)

C25D 3/62 (2013.01)

Citation (search report)

See references of WO 2012076174A2

Citation (examination)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

DE 102010053676 A1 20120614; EP 2649223 A2 20131016; WO 2012076174 A2 20120614; WO 2012076174 A3 20130214; WO 2012076174 A8 20120823

DOCDB simple family (application)

DE 102010053676 A 20101207; EP 11799631 A 20111207; EP 2011006155 W 20111207