Self-repairing structure and coating for corrosive medium
US7220342B2 · kind B2 · utility
6Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2005 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Nov 18, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F13/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a structure comprising at least one metallic surface which undergoes cathodic protection and a protective coating for said surface, said coating comprising a polymer including micro-capsules containing compounds sensitive to the electric field generated by the cathodic protection and capable of reacting in an alkaline medium to form a protective layer on the surface of the structure when it is in direct contact with a corrosive medium.The invention also concerns the coating associated with said structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.