Metal-chelating diphenolamine oligomers for corrosion inhibition of metal substrates
US4770727A · kind A · utility
5Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1987 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Dec 7, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/173
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to a water-soluble or water-dispersible diphenolamine oligomeric metal-chelating compound, method for making same, aqueous composition comprising the compound useful to deposit a corrosion preventive and adhesion promoting coating on a metal substrate and a method for doing same. The composition has a pH of between about 2 and about 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.