Process for the activation of nickel - phosphorous surfaces
US5431959A · kind A · utility
6Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1994 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Aug 26, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C18/1844
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a composition and process useful in activating nickel-phosphorous surfaces for subsequent plating thereon. A combination of sulfuric acid and ammonium sulfate is utilized to render otherwise non-catalytic nickel-phosphorous surfaces catalytic to subsequent plating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.