Anodizing and duplex protection of aluminum copper alloys
US5362569A · kind A · utility
4Cited by
2References
27Claims
0Family size
Inventor
Key dates
| Filing date | Mar 22, 1993 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Mar 22, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/24
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Copper alloys of aluminum are afforded extended protection against surface corrosion by anodizing the aluminum surface to be protected, treating the surface with a heterocyclic aromatic azole treating agent having up to 16 carbon atoms before, during or after the anodizing step, and coating the treated surface after anodize with a fatty acid of 5 to 24 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.