Double polydisperse emulsion, double emulsion and menodispersada corresponding preparation process of the monodispersed emulsion.

摘要

stable double emulsion having a polydispersity greater than 30%, severable type water in oil in water consisting of 50 to 95% by weight relative to the total weight of the double emulsion, of droplets of a monodisperse inverse emulsion Ei dispersed in an aqueous continuous phase; wherein the monodisperse emulsion Ei one reverse exceeding 30% polydispersity: - continuous comprising a thickening agent to polysaccharide ratio 1 to 10% by weight relative to the total weight of the aqueous continuous phase aqueous phase; hydrosoluble copolymer sequence ethylene oxide and propylene oxide by way of surfactant; and an agent balancing the osmotic pressure; - introducing the emulsion Ei less than or equal to the viscosity of the aqueous continuous phase viscosity and is composed of 50 to 95% by weight relative to the total weight of Ei, of droplets of an internal aqueous phase dispersed in an oily phase ; - the internal aqueous phase comprising at least one hydrophilic active substance; - the oily phase comprising polyglycerol polyricinoleate by way of surfactant; concentration in equilibration agent is sufficient to ensure the osmotic balance between the aqueous phase of the emulsion Ei and the continuous aqueous phase.