Viscoelastic surfactant fluids and related methods of use
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United States of America Patent
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Feb 2, 2016
Grant Date -
Apr 21, 2011
app pub date -
Dec 22, 2010
filing date -
Jun 10, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Viscoelastic surfactant based aqueous fluid systems useful as thickening agents in various applications, e.g. to suspend particles produced during the excavation of geologic formations. The surfactants are zwitterionic/amphoteric surfactants such as dihydroxyl alkyl glycinate, alkyl ampho acetate or propionate, alkyl betaine, alkyl amidopropyl betaine and alkylimino mono- or di-propionates derived from certain waxes, fats and oils. The thickening agent is used in conjunction with an inorganic water-soluble salt or organic additive such as phthalic acid, salicylic acid or their salts.
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International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- C05G:MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DI....
- A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
- C05F:ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05....
- A61Q:USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
- B01F:MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
- C11D:DETERGENT COMPOSITIONS
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