Process for the manufacture of bis-quaternary ammonium compounds

Details Process for the manufacture of bis-quaternary ammonium compounds Process for the manufacture of bis-quaternary ammonium compounds

1986-08-22

1988-08-16

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

562564, 564197, 564295, 564296, 564292, C09F 500, C07C10334, C07C 8730, C07C 8500

Patent

active

047643064

ABSTRACT:
A method of preparing certain bis-quaternary ammonium compounds and mixtures is disclosed. The method involves contacting a tertiary amine with a suitable amount of neutralizing acid, e.g. HCl, and subsequently contacting the resulting mixture with a suitable epoxide, e.g. epichlorohydrin, at an elevated temperature and in an amount that e.g. 2-hydroypropylene-bis-1,3-(dimethyl stearyl ammonium chloride) is obtained in almost stoichiometric yields. The resulting bis-quaternary ammonium compounds can be incorporated into a hair conditioner whereby a softer feel and better control of hair is obtained.
The general structure for the resulting bis-quaternary ammonium compounds is as follows: ##STR1## wherein the R's are selected from the group consisting of alkyl, alkylamidoalkyl, aryalkyl, aryl, alkoxy, alkenyl, hydroxyalkyl, and carboxyalkyl and X is a negative radical from the epoxide used, e.g. epichlorohydrin.

REFERENCES:
patent: 3642663 (1972-02-01), Greer
patent: 4480126 (1984-10-01), Rutzen
McKelvey et al, Industrial and Engineering Chemistry, Product & Research Development, 6(2), pp. 115-120, (1967).

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