Organosilicium-behandeltes Pigment, Verfahren zu dessen Herstellung und damit hergestellte Kosmetika

摘要

Disclosed herein are (1) an organosilicon-treated pigment which comprises a pigment or extender pigment and a linear reactive alkylpolysiloxane having in the molecule amino groups, imino groups, halogen atoms, hydroxyl groups, or alkoxyl groups, which is oriented and adsorbed to the surface of the pigment or extender pigment by heat treatment, (2) a process for producing said treated pigment, and (3) a cosmetic made with said treated pigment. The organosilicon-treated pigment is characterized by silicone firmly adsorbed to the surface of a pigment or extender pigment, freedom from residual hydrogen, very smooth feel, good adhesion to the skin, and ability to permit the color pigment of fine particle to spread well. The treated pigment finds use as a component of high-quality cosmetics such as powder foundation, liquid foundation, rouge, and eye shadow.