EP 2505691 B1 20140312 - Process for obtaining a gold alloy deposit of 18 carat 3N
Title (en)
Process for obtaining a gold alloy deposit of 18 carat 3N
Title (de)
Verfahren zur Herhaltung einer Beschichtung aus einer Goldlegierung 18 Karat 3N
Title (fr)
Procédé d'obtention d'un dépôt d'alliage d'or 18 carats 3N
Publication
Application
Priority
EP 11160669 A 20110331
Abstract (en)
[origin: EP2505691A1] The electroplating process for the deposition of a yellow gold alloy on an electrode immersed in a bath comprising a gold metal (1-10 g/l), an organometallic compound, a wetting agent, a chelating agent and a free cyanide, is claimed. The metal alloy includes copper (78.31 wt.%), and silver (0.16 wt.%), and a content of gold is 21.53 wt.%. A concentration of the wetting agent is 0.05-10 ml/l. A temperature of the bath is maintained at 50-90[deg] C, and a pH of the bath is 8-12. The process is carried out at a current density of 0.05-1.5 A.dm -> 2>. An independent claim is included for an electroplating device.
IPC 8 full level
C25D 3/62 (2006.01)
CPC (source: EP US)
C25D 3/62 (2013.01 - EP US)
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)
EP 2505691 A1 20121003; EP 2505691 B1 20140312; CN 102732920 A 20121017; CN 102732920 B 20150722; HK 1177235 A1 20130816; JP 2012214899 A 20121108; JP 5627629 B2 20141119; US 10053789 B2 20180821; US 10793961 B2 20201006; US 2012247968 A1 20121004; US 2018320283 A1 20181108
DOCDB simple family (application)
EP 11160669 A 20110331; CN 201210113840 A 20120330; HK 13104533 A 20130415; JP 2012083556 A 20120402; US 201213427558 A 20120322; US 201816038662 A 20180718