Novel liquid membrane formulations

Details Novel liquid membrane formulations Novel liquid membrane formulations

1978-01-19

1981-03-31

Spear, Jr., Frank A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

210643, 2105002, 252358, B01D 3900, B01D 1300

Patent

active

042591899

ABSTRACT:
This invention relates to emulsions containing a polyamine derivative as the sole surfactant and strengthening agent. The emulsions comprise an aqueous interior phase surrounded by an oily exterior phase which contains a polyamine derivative having the general formula: ##STR1## wherein n for the polyisobutylene portion varies from 10 to 60, x varies from 3 to 10, and y is selected from the group consisting of hydrogen, hydrogen-containing nitrogen radicals, hydrogen and oxygen-containing nitrogen radicals, and alkyl radicals having up to 10 carbons, alkyl radicals having up to 10 carbons which contain nitrogen, oxygen or both, and mixtures of said polyamine derivatives.

REFERENCES:
patent: 3004923 (1961-10-01), Jursleh
patent: 3629119 (1971-12-01), Weaver
Mohan et al., "Nitrate and Nitrite Reduction by Liquid _Membrane-Encapsulated Whole Cells", from Biotechnology and Bioengineering, vol. XVII, pp. 1137-1156, 1975, p. 1140.

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