| 摘要 |
PURPOSE:To obtain hydrophobically treated powder having improved hydrophobic nature and good stability, by dissolving an organic compound containing a specific functional group in a volatile solvent, dispersing powder useful for cosmetic, etc., into the solution and removing the volatile solvent by volatilization. CONSTITUTION:(B) An organic compound (preferably dextrin fatty acid partial ester which is solid at normal temperature and contains one or more hydroxyl groups, one or more carboxyl groups and/or alkoxycarbonyl groups in the molecule is dissolved in (A) a volatile solvent such as n-hexane, etc., (C) powder such as silicic acid, etc., is dispersed into the solution and a volatile solvent is vaporized to give the powder coated with the component B. |
