Compositions vesicular a base of a quaternary ammonium salt and of surfactant - the active agent.

摘要

Vesicular compositions comprising the following constituents a and b: / p & & p & is a quaternary ammonium salt of the type having two chains, of general formula: & br / (see appended drawing in bopi) & br / in which r and r are each a hydrocarbon radical having from 10 to 24 carbon atoms, r and r are each a radical hydrocarbon or hydroxyhydrocarbon having from 1 to 4 carbon atoms, or else a benzyl radical and x is an anion serving as an ion complementary to the ion quaternary ammonium, 1 / p & & p & (b) one or more surface-active - the active agents chosen from the group comprising the components having the formulae of the type: & br / (see appended drawing in bopi) & br / the ponderal of the component a of the constituent b is equal to 100: 1 to 100: 100. / p & & p & the components b serve to stabilize the vesicles, and the compositions according to the invention, can form vesicles stable over a long period.