Method for protecting metals against corrosion and non-polluting reactive composition therefor
US6740173B1 · kind B1 · utility
7Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | May 31, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a method for protecting metal products against corrosion, characterised in that it consists in applying directly on the metal products, that is without prior treatment, a composition consisting at least of a film-forming binder, at least a corrosion inhibiting additive reactive with metal and at least an oligomer additive bearing phosphonic acids. The inventive composition is characterised in that it comprises a film-forming binder, at least a corrosion inhibiting additive reactive with metal and at least an oligomer additive bearing phosphonic acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.