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Water-in-oil-in water emulsion
   
Document Number
US Patent 5948855
Issued Date
September 7, 1999
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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.
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Number of Claims:
10
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Owner
Published
September 7, 1999
Application Number
09/228,863
Filed
January 12, 1999
US Classification
524/837   424/401 424/70.12 524/588
Int'l Classification
B01F   17/00   (20060101)   C08G   77/00   (20060101)   C08J   3/03   (20060101)   C08J   3/075   (20060101)   C08J   3/02   (20060101)   C08G   77/46   (20060101)   C08L   83/00   (20060101)   A61K   6/00   (20060101)  
Examiner
Attorney/Law Firm
USPTO Field of Search
524/837   524/588  
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