Method for etching an aluminum foil for an electrolytic capacitor
US5143587A · kind A · utility
7Cited by
1References
24Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 24, 1992 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Jan 24, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12993
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for etching an aluminum foil for an aluminum electrolytic capacitor, which comprises immersing the aluminum foil in an etching solution containing a polymer electrolyte having cation exchange groups dissociable in the etching solution, and applying an electric current thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.