Method for etching an aluminum foil for an electrolytic capacitor
US5194127A · kind A · utility
9Cited by
1References
24Claims
0Family size
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Key dates
| Filing date | Jun 30, 1992 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Jun 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12993
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for chemically 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.