Aqueous acid plating bath and brightener mixture for producing semibright to bright electrodeposits of tin
US4417957A · kind A · utility
5Cited by
1References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1982 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | Sep 3, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/32
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A tin brightener mixture for plating baths comprises chlorinated acetophenones, emulsifying agents, and acrylic or methacrylic acid. Additionally, aromatic aldehydes can be utilized. The tin brightener yields semibright to bright deposits from 0 to over 150 amps per square foot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.