Coating composition and method for the treatment of formed metal surfaces
US5332452A · kind A · utility
8Cited by
8References
27Claims
0Family size
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Inventor
Key dates
| Filing date | May 28, 1992 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | May 28, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/361
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An aqueous, acidic composition for application to aluminum and aluminum alloy surfaces comprising a source of zirconium ions, a source of fluoride ions, a source of phosphate ions, a phosphate acid ester, a polyethylene glycol ester of a fatty acid, and nitric acid, and a method for treating aluminum and aluminum alloy surfaces with such a composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.