Emulsifier-free finely disperse systems of the oil-in-water-...

Details Emulsifier-free finely disperse systems of the oil-in-water-... Emulsifier-free finely disperse systems of the oil-in-water-...

2005-01-04

2005-01-04

Hartley, Michael G. (Department: 1616)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

C424S400000, C424S059000, C516S053000, C516S055000, C516S083000

Reexamination Certificate

active

06838088

ABSTRACT:
Pickering emulsions, which are finely disperse systems of the water-in-oil or oil-in-water type, comprising(1) an oil phase,(2) a water phase,(3) at least one type of microfine particles whicha) have an average particle size of less than 200 nm, whichb) display both hydrophilic and lipophilic properties, i.e. which have amphiphilic character, and are dispersible both in water and in oil and whichc) have optionally been coated on the surface,(4) at least one film former and(5) at most 0.5% by weight of one or more emulsifiers.

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