Composition and process for treating a surface coated with a self-accelerating and replenishing non-formaldehyde immersion coating
US5725640A · kind A · utility
12Cited by
27References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | May 14, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0392
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosure relates to treating a self accelerating and replenishing immersion composition on a substrate with a neutralizing and reducing composition comprising an acid and a salt of an inorganic or organic amine, and then electrolytically coating the treated surface with a metal. The salts in one embodiment comprise salts of hydroxylamine or hydrazine and the acid comprises a mineral acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.