Corrosion inhibitor treatment for closed loop systems
US7632458B2 · kind B2 · utility
2Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2006 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides an effective method of inhibiting corrosion on metallic surfaces in contact with a fluid contained in a closed loop industrial fluid system, which comprises adding to such fluid an effective corrosion controlling amount of a combination of an organic diacid, a triamine and a phosphonate compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.