Methods of and formulations for reducing and inhibiting the growth of the concentration of microbes in water-based fluids and systems used with them
US9139796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2008 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Mar 12, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides methods and formulations for reducing or inhibiting increase in the concentration of microbes in a water-based fluid. The methods and formulations of the present invention use an oxazolidine compound and a hydroxymethyl-substituted phosphorus compound selected from the group consisting of tetrakis(hydroxymethyl)phosphonium salts, C1-C3 alkyl- and alkenyltris(hydroxymethyl)phosphonium salts and tris(hydroxymethyl)phosphine. The methods and formulations of the present invention can be useful in treating water contaminated with aerobic or anaerobic bacteria in oilfield and other industrial applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.