METHOD OF OBTAINING EMULSION COSMETIC PREPARATION Russian patent published in 2011 - IPC A61K8/06 A61Q19/00 

FIELD: medicine.

SUBSTANCE: invention relates to field of cosmetology and represents method of obtaining emulsion cosmetic preparation, including step-by-step dispersion in solvent at room temperature of poorly soluble components, components being introduced into installation with powerful hydroacoustic impact, in which carried out are dispersion of components and cavitation homogenation of emulsion with further packing, characterised by the fact that mode of resonance acoustic cavitation is formed inside flowing mechanic fluctuation system-canal of rectangular section with larger side a and smaller side b respectively, generation of acoustic fluctuations is realised in phase on both opposite sides a with amplitude exceeding threshold of acoustic cavitation for moving multi-phase medium, consisting of mixed ingredients, amplitude of fluctuations is selected optimal for different stages of emulsion preparation, frequency f of acoustic fluctuations is selected equal to resonance frequency of entire canal with elements of added mass, which is determined by any known method, smaller distance b between canal walls is selected multiple to one fourth of wavelength, excited in said multi-phase medium, where f is frequency of generated fluctuations, Hz, C is sound velocity in multi-phase medium, m/s, b is distance between canal walls, m.

EFFECT: invention ensures obtaining the finest monodisperse cream emulsions with submicronic size of disperse phase, coalescence-resistant.

7 dwg