Method of obtaining a yellow gold alloy deposition by galvanoplasty without using toxic metals or metalloids
US10619260B2 · kind B2 · utility
0Cited by
26References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 28, 2019 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Jan 28, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/48
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A galvanic bath, containing: gold metal in the form of alkaline aurocyanide; organometallic components; a wetting agent; a complexing agent; free cyanide; copper metal in the form of copper II cyanide and potassium; and indium metal in the form of a complex indium metal, where the galvanic bath does not contain cadmium and zinc, and where the galvanic bath deposits a yellow gold alloy comprising gold, copper, and indium as main components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.