Composite powder having inorganic powder impregnated with porous polymer, cosmetic composition containing same, and method for preparing same
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United States of America Patent
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May 7, 2019
Grant Date -
Feb 15, 2018
app pub date -
Nov 24, 2015
filing date -
Mar 13, 2015
priority date (Note) -
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Abstract
The present invention relates to composite powder having enhanced water repellency and oil absorbency by means of even impregnation of inorganic powder particles with a super-water-repellent porous polymer. The composite powder prepared by means of a one-step spraying procedure of electro-spraying or spray drying, according to the present invention, shows super water repellency and maximized oil absorbency by means of increased porosity of porous polymethyl methacrylate (PMMA) and even impregnation with titanium dioxide (TiO2) nanoparticles.
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