Coloring by electrolysis of aluminum or aluminum alloys
US4128460A · kind A · utility
14Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1977 |
| Grant date | Dec 5, 1978 |
| Priority date | — |
| Expiry date | Sep 6, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/22
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Coloring by electrolysis of aluminum or aluminum alloys comprising electrolyzing anodized aluminum or aluminum alloys without sealing the anodized surface thereof in an electrolytic bath containing an aliphatic sulfonic acid and a metal salt of such sulfonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.