Protective fluoride coatings for aluminum alloy articles
US6881491B2 · kind B2 · utility
10Cited by
22References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2003 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Jun 23, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12569
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum alloy article is cleaned to remove oxides and organic matter from a coatable surface, coated with a composition comprising an organic resin and a fluorine compound, and then heated to an elevated temperature to decompose the organic resin and at least a portion of the fluorine compound. After heating the coated surface is left with a protective oxyfluoride film that prevents blistering and hydrogen pickup and promotes hydrogen degassing from the article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.