Method of obtaining a yellow gold alloy deposition by galvanoplasty without using toxic metals or metalloids
US9683303B2 · kind B2 · utility
1Cited by
25References
16Claims
0Family size
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Key dates
| Filing date | Apr 3, 2014 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Apr 9, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/48
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to a make-up solution for a galvanic bath comprising organometallic components, a wetting agent, a complexing agent and free cyanide, wherein the make-up solution further comprises copper in the form of copper II cyanide and potassium, and complex indium allowing, after addition of alkaline aurocyanide, to galvanically depositing a gold alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.