Water-in-oil-in water emulsion

Details Water-in-oil-in water emulsion Water-in-oil-in water emulsion

1999-01-12

1999-09-07

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524588, 424 7012, 424401, C08L 8300, A61K 600

Patent

active

059488557

ABSTRACT:
A multiple emulsion of the type W.sub.1 /O/W.sub.2 is made by first preparing a primary emulsion W.sub.1 /O using a silicone fluid as the oil phase (O), and an elastomeric silicone polyether as an emulsifier, for dispersing water phase W.sub.1 into oil phase (O). The primary emulsion W.sub.1 /O is then added and dispersed into a final continuous water phase W.sub.2 to form a multiple emulsion W.sub.1 /O/W.sub.2. The multiple emulsions are useful for treating the hair, the skin, or the underarm areas of the human body. Vitamins or drugs can be included in the oil phase (O) or in either aqueous phase W.sub.1 or W.sub.2 to enhance the benefits of the multiple emulsions in personal care applications.

REFERENCES:
patent: 5589177 (1996-12-01), Herb
patent: 5654362 (1997-08-01), Schulz
patent: 5656280 (1997-08-01), Herb
patent: 5811487 (1998-09-01), Schulz

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