| abstract |
A treated powder having high water repellency and good dispersibility in oil. In addition, it is highly water-repellent and highly stable, especially UV protection agents for sunscreen cosmetics can be highly blended, and there is no whitening when applied to the skin. To provide excellent cosmetics. The powder surface is coated with an organoalkoxysilane having a functional group such as vinyltriethoxysilane, and then reacted with a silicone having a functional group reactive with this, for example, hydrogenmethylpolysiloxane. The treated powder obtained is used. [Selection figure] None |