Hydroxyimino alkylene phosphonic acids for corrosion and scale inhibition in aqueous systems
US5788857A · kind A · utility
22Cited by
13References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Oct 23, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F5/14
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to the use of iminoalkylenephosphonic acids to prevent corrosion, including both localized corrosion and general corrosion on iron based metal surfaces in contact with a corrosive system water in an aqueous system. The invention also relates to the use of the iminoalkylenephosphonic acids to control formation, deposition and adherence of scale at the surfaces of metals in contact with a scale-forming system water in an aqueous system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.