Back to results
US 2011/0253633 A1Published application
Catanionic vesicles, process for preparing same and applications thereof
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alt.
InventorsDavid Carriere, Youlia Michina, Daniel Kopetzki
Life of this patent
Estimating the term…
Abstract
Catanionic vesicles, the walls of which are constituted of a mixture of surfactants of opposite charges. Process for preparing same and uses thereof, especially in the field of pharmacy or cosmetics, in the sector for the pollution control of aqueous media or in the field of the synthesis of nanoparticles.
Claims25
A non-porous vesicle, dispersed in an aqueous composition which defines an external phase, wherein a wall of the vesicle, which defines an internal phase, comprises a mixture comprising:
- at least one anionic surfactant with a counter-ion A+;
- and
- at least one cationic surfactant with a counter-ion B−,
- which are co-crystallized and are an ion pair,
- wherein the ion pair, A+B−, is different from the ion pair, H+OH−, and with at least A+=H+ or B−═OH−.
2 more elements
Dependencies are inferred from the claim text.