Patent ID: 8852555
Filing Date: 2014-10-07
Classification: A61K,B22F,B82Y,C01G,C01P,C09C,G01N,H01F

Abstract:
1. A process for production of surface covering inorganic particles, comprising: adding, to a dispersion that comprises inorganic particles covered in an aliphatic acid, a temporal covering material to release the aliphatic acid from the inorganic particles and substitute the aliphatic acid with the temporal covering material, thereby obtaining inorganic particles covered with the temporal covering material; dispersing the inorganic particles covered with the temporal covering material in a polar solvent, thereby obtaining a dispersion of inorganic particles covered with the temporal covering material; and adding, to the dispersion of inorganic particles covered with the temporal covering material, a polar solvent dispersion covering material to substitute the temporal covering material with the polar solvent dispersion covering material, thereby obtaining inorganic particles covered with the polar solvent dispersion covering material, wherein said polar solvent dispersion covering material is citric acid.