Composition and method for coating metal surfaces
US4183772A · kind A · utility
19Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1978 |
| Grant date | Jan 15, 1980 |
| Priority date | — |
| Expiry date | Jan 30, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/33
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This application is concerned with the treatment of metal surfaces with stable solutions of hexavalent chromium, trivalent chromium, phosphoric acid, polyacrylic acid and water dispersible acrylic emulsion polymer to enhance the corrosion resistance and paint adhesion properties of the metal; the coating uniquely having generally universal utility under a wide variety of paint systems and paint types.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.