Anti corrosion treatment of aluminium or aluminium alloy surfaces
US5520750A · kind A · utility
16Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1995 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | May 23, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/44
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An anti corrosion treatment of an aluminium or aluminium alloy surface comprising the steps of treating the surface with a solution having a pH of from greater than 0 to less than 2 and comprising at least one metal oxo ion completed with phosphorus (V) wherein the metal oxo ion is vanadate or tungstate or a mixture thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.