Corrosion inhibitors for aqueous systems
US6572789B1 · kind B1 · utility
91Cited by
6References
4Claims
0Family size
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Key dates
| Filing date | Dec 6, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Dec 6, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/023
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of inhibiting corrosion in aqueous systems comprising adding to the system a composition comprising mono, bis and oligomeric phosphinosuccinic acid adducts and a method of preparing a composition comprising mono, bis and oligomeric phosphinosuccinic acid adducts comprising adding hypophosphite to fumaric acid slurry or solution in water to create a reaction mixture; and effecting a reaction by introducing a free radical initiator to the reaction mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.