Article of manufacture and process for anodically coating an aluminum substrate with ceramic oxides prior to organic or inorganic coating
US7820300B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Jun 1, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/18
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An article of manufacture and a process for making the article by the anodization of aluminum and aluminum alloy workpieces to provide corrosion-, heat- and abrasion-resistant ceramic coatings comprising titanium and/or zirconium oxides, and the subsequent coating of the anodized workpiece with a second coating such as polytetrafluoroethylene (“PTFE”) or silicone containing coatings. The invention is especially useful for forming longer life coatings on aluminum substrates by pre-coating the substrate with an anodized layer of titanium and/or zirconium oxide that provides excellent corrosion-, heat- and abrasion-resistance in a hard yet flexible film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.