Outdoor-suitable antique copper color aluminum material and process
US8580101B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2009 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Jun 11, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12736
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A copper-substitute aluminum material made from a copper and cobalt anodizing process. The process includes the steps of: anodizing the aluminum material by submersing it in a basic sulfuric acid to build an anodic layer producing anodized aluminum material; combining copper and cobalt salts together in one bath; lowering the pH of the bath to between about 1.0 and about 3.0; coloring the anodized aluminum material electrolytically by submersing the anodized aluminum material in the bath of copper and cobalt salts; and applying an electrical current to the bath plating the copper and cobalt salts into the anodized aluminum material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.