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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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Li, Ruoxin, Dahanayake, Manilal S, Yang, Jiang, Niu, Joseph H Y, Dino, David, Derian, Paul-Joel
Format:	Patent
Sprache:	nor
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY DETERGENT COMPOSITIONS DETERGENTS DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FATTY ACIDS THEREFROM FERTILISERS FERTILISERS CHARACTERISED BY THEIR FORM FIXED CONSTRUCTIONS FUELS HUMAN NECESSITIES HYGIENE LUBRICANTS MANUFACTURE THEREOF MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEDICAL OR VETERINARY SCIENCE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05 MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ORGANIC CHEMISTRY ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE PAINTS PEAT PETROLEUM, GAS OR COKE INDUSTRIES POLISHES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PYROLIGNEOUS ACID RECOVERY OF GLYCEROL RESIN SOAPS SOAP OR SOAP-MAKING SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS TECHNICAL GASES CONTAINING CARBON MONOXIDE USE OF SINGLE SUBSTANCES AS DETERGENTS WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
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Beschreibung
Zusammenfassung:	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.