Process for making heat stable color anodized aluminum and articles formed thereby
US9139926B2 · kind B2 · utility
8Cited by
5References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 5, 2011 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | May 6, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/246
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process of hard anodizing or Type III anodizing an aluminum article creates a heat stable, hard anodized, color surface on the exterior of the article. The process includes anodizing the aluminum article to achieve a hard anodized base layer on a surface of the article. A copper layer is deposited after the exterior is hard anodized. A tin layer is deposited after the step of depositing the copper layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.