Silicone containing oil-in-water emulsions

Details Silicone containing oil-in-water emulsions Silicone containing oil-in-water emulsions

1993-06-03

1995-08-22

Wu, Shean

Drug, bio-affecting and body treating compositions

Topical body preparation containing solid synthetic organic...

Skin cosmetic coating

252302, 252309, 252314, 514847, 514937, 514 63, B01J 1300, A61K 31765

Patent

active

054437601

ABSTRACT:
An oil-in-water emulsion is prepared with certain siloxane-oxyalkylene copolymeric surfactants which have in the emulsion a combined HLB value of between about 4-7. The oil phase includes silicone oils which are volatile and silicone oils or gums which are non-volatile, or mixtures of silicone oils and gums. What is unexpected and unusual about the invention is that conventional wisdom dictates that surfactant packages having a combined HLB value of 4-7 result in water-in-oil emulsions rather than oil-in-water emulsions.

REFERENCES:
patent: 4122029 (1978-10-01), Gee et al.
patent: 4311695 (1982-01-01), Starch
patent: 4801447 (1989-01-01), Gum
patent: 5036108 (1991-07-01), Asahi et al.
patent: 5302382 (1994-04-01), Kasprzak

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