Zwiterionic 2-alkyl imidazolines as emulsifying agents for oil b

Details Zwiterionic 2-alkyl imidazolines as emulsifying agents for oil b Zwiterionic 2-alkyl imidazolines as emulsifying agents for oil b

1983-11-17

1985-10-01

Schwartz, Richard A.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D23318

Patent

active

045447560

ABSTRACT:
Improved emulsifying agents for oil based drilling fluids, compared to imidazoline materials presently being used in oil based drilling fluids, that not only are excellent emulsifiers for oil based drilling fluids, but also are effective wetting agents and fluid loss control agents in invert (water-in-oil) systems, are obtained from imidazolines prepared by reacting long chain fatty acids with polyalkylene polyamines to form a 2-alkyl imidazoline, and then reacting the 2-alkyl imidazoline with an activated dicarboxylic acid to form the desired 2-alkyl imidazoline derivative.

REFERENCES:
patent: Re23227 (1950-05-01), Blair et al.
patent: 2713582 (1955-07-01), Smith
patent: 3728277 (1973-04-01), Foley
patent: 3849435 (1974-11-01), Diery et al.
patent: 4109094 (1978-08-01), Trivedi et al.
patent: 4374737 (1983-02-01), Larson et al.

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