Emulsifier-free finely disperse systems of the oil-in-water and water-in-oil type
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United States of America Patent
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Oct 12, 2004
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N/A
app pub date -
Feb 21, 2002
filing date -
Sep 18, 1998
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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 which a) have an average particle size of less than 200 nm, which b) display both hydrophilic and lipophilic properties, i.e. which have amphiphilic character, and are dispersible both in water and in oil and which c) have optionally been coated on the surface, (4) at least one polymeric moisturizer and (5) at most 0.5% by weight of one or more emulsifiers.
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