Gold sulfite baths containing organophosphorous compounds
US4012294A · kind A · utility
5Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1975 |
| Grant date | Mar 15, 1977 |
| Priority date | — |
| Expiry date | Aug 26, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/62
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is an improved gold-sulfite bath for plating gold and gold alloy deposits. By the inclusion in the bath of small amounts of certain organic phosphorus compounds, the quality of the deposit is rendered less sensitive to substantial changes in operating variables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.