Process for the production of low-viscosity amphoteric surfactan

Details Process for the production of low-viscosity amphoteric surfactan Process for the production of low-viscosity amphoteric surfactan

1987-12-07

1989-05-23

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548353, 548354, C07D23304

Patent

active

048332534

ABSTRACT:
Low viscosity amphoteric surfactants are prepared by quaternization of low diamine content imidazolines by a process in which certain addition and temperature parameters are strictly observed. Imidazolines suitable as a starting material may be obtained by heating fatty acids and aminoethanolamine in an inert solvent until water is eliminated, removing the water formed from the reaction mixture by azeotropic distillation and, finally, distilling off the solvent and the residual amine.

REFERENCES:
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patent: 2773068 (1956-12-01), Mannheimer
patent: 3555041 (1971-01-01), Katz et al.
patent: 4059488 (1977-11-01), Wakeman et al.
patent: 4212983 (1980-07-01), Phillips et al.
patent: 4269730 (1981-05-01), Wechsler et al.
patent: 4304932 (1981-12-01), Phillips et al.

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