Water repellent and method of preparation

Details Water repellent and method of preparation Water repellent and method of preparation

1993-07-06

1994-07-12

Bleutge, John C.

Drug, bio-affecting and body treating compositions

Live skin colorant containing

424401, 523212, A61K 7021

Patent

active

053286839

ABSTRACT:
A water repellent powdered material and a method of making the powder in which the powdered material is mixed with an organic solvent solution of a triorganosiloxysilicic acid having the formula (R.sub.3 SiO.sub.1/2).sub.2 nSiO.sub.2 in which R is a monovalent hydrocarbon radical such as alkyl, aryl, and alkenyl; and n is an integer having a value of one to five; with the acid being present in an amount of from 0.1 to 20 parts by weight per one hundred parts by weight of the powdered material. The powder can be used to formulate cosmetic foundations.

REFERENCES:
patent: 4753977 (1988-06-01), Merrill
patent: 5219560 (1993-06-01), Suzuki et al.

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