专利名称：CAPSULE COMPOSITION CONTAINING
INORGANIC NANOPARTICLES FOR UVPROTECTION USING OF HYDROGEL-FORMING POLYMERS, AND METHOD FORPREPARING SAME
发明人：SON, TAE-HUN,SHIN, CHAN-JAE,CHOI,
YONG-HAN,JEONG, SUNG-YOON,GO, TAE-SUNG
申请号：EP12876106申请日：20121016公开号：EP2848247A4公开日：20151216
摘要：The present invention relates to a capsule composition containing UV-blockinginorganic nanoparticles, and a preparation method thereof, in which the UV-blockinginorganic nanoparticles are embedded in hydrophilic polymer capsules using a water-soluble dispersing agent, so that when the composition is applied to the skin, thepolymer forms a thin hydrogel film that keeps the inorganic nanoparticles contained inthe capsules to prevent the inorganic nanoparticles from penetrating the skin. Themethod comprises: uniformly mixing UV-blocking inorganic nanoparticles with a water-soluble dispersing agent in water to prepare a dispersion of the inorganic nanoparticlescoated with the dispersing agent; adding, to the dispersion, either a hydrophilic polymercapable of forming a hydrogel, or a solution of the hydrophilic polymer in distilled water,to prepare a mixture; and spray-drying the mixture, thereby producing capsule particles
containing the dispersing agent-coated UV-blocking inorganic nanoparticles covered by afilm formed of the hydrophilic polymer.
申请人：BIOGENICS, INC.
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