Composite powder and production process

Details Composite powder and production process Composite powder and production process

1990-10-04

1992-06-16

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

424 59, 424 762, 424 7625, 424489, 424 46, 424 47, A61K 600

Patent

active

051224186

ABSTRACT:
A composite powder wherein an organic or inorganic core powder is substantially completely covered with one or more types of organic, inorganic, or metallic powders having an average particle size one-fifth or less of the average particle size of the above core powder by means of mixing and compression. The composite powder may be manufactured by mixing and compressing the above core powder and coating powder using a ball mill or other mixer charged with a ball shaped mixing medium of an average diameter of 5 mm or less. This composite powder may be used in, for example, skin treatment agent, makeup type cosmetics, sunburn preventing cosmetics, deodorants.

REFERENCES:
patent: 4537913 (1985-08-01), Bauman
patent: 4669492 (1987-06-01), Kleinsorgen
C.A. vol. 89, 94884d, 1978, p. 382 "Powders-Porous Powders for Cosmetics"; JP7813626.
C.A. vol. 97, 150585m, 1982 "Porous Powder for Skin Cosmetics", JP8686,823.

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