Treatment to improve corrosion resistance of autodeposited coatings on metallic surfaces
US5667845A · kind A · utility
8Cited by
25References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1996 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | May 14, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/088
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process enhances corrosion resistance of autodeposited coatings on metallic surfaces by contacting the uncured coating on the metallic surface with a reaction rinse solution containing complex fluoride anions. In a preferred use, because the protective properties of the autodeposited coatings are improved on both cold rolled and galvanized steel, both may be processed simultaneously, providing practical and economic advantages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.