Organosilicon-treated pigment, process for production thereof, a

Details Organosilicon-treated pigment, process for production thereof, a Organosilicon-treated pigment, process for production thereof, a

1992-06-25

1994-11-29

Group, Karl

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106481, 106 2, 106 1812, 1062871, 106806, 424 7803, C04B 1404, A61K 700

Patent

active

053686390

ABSTRACT:
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 adhered in an oriented mode 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 adhered 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 size 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.

REFERENCES:
patent: 3377311 (1968-04-01), Roch
patent: 3388073 (1968-06-01), Domba
patent: 3929718 (1975-12-01), Kratel et al.
patent: 4151154 (1979-04-01), Berger
patent: 4263051 (1981-04-01), Crawford et al.
patent: 4529774 (1985-07-01), Evans et al.
Patent Abstracts of Japan, vol. 16, No. 63 (C-911) [506], abstract for JP 3-258866, published Feb. 18, 1992.

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