Method of preparing a multiphase composition
AssigneeEstee Lauder, Inc.
InventorsKonstantinos M. Lahanas, Tracy N. Keeler, Andrew J. Bevacqua, George Cioca
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AssigneeEstee Lauder, Inc.
InventorsKonstantinos M. Lahanas, Tracy N. Keeler, Andrew J. Bevacqua, George Cioca
Estimating the term…
The instant invention relates to methods of preparing and stabilizing complex multiphase compositions that include distinct phases of water, gel, liquid crystal or oil and perfluoropolyether dispersed in a continuous phase of a silicone fluid. In particular, the present invention relates to a method of preparing a stable multiphase composition comprising the steps of mixing an aqueous solution of a water-soluble polymeric emulsifier, a silicone-based emulsifier and an oleophobic, hydrophobic silicone fluid in amounts effective to form a stable water-in-silicone emulsion; mixing the water-in-silicone emulsion with a hydrophilic gel comprising a homogeneous mixture of water and a sufficient amount of at least one viscosity-enhancing, water-soluble polymer, the emulsion and gel being combined in amounts effective to form a dispersion in which the gel is dispersed in the emulsion; and adding to the dispersion an oil or a thermotropic liquid crystal and a perfluoropolyether in amounts effective to form a stable, multiphase composition comprising a continuous phase of silicone fluid and independent, polydisperse phases of water, gel, oil or liquid crystal and perfluoropolyether.
A method of forming a stable, multiphase composition comprising:
A method of stabilizing a multiphase composition in which independent phases of water, a hydrophilic gel comprising a homogeneous mixture of water and a sufficient amount of at least one viscosity-enhancing water-soluble polymer, a liquid crystal and a perfluoropolyether are dispersed in a continuous phase of silicone fluid comprising adding an effective amount of a water-soluble polymeric emulsifier, or an aqueous solution thereof, to an aqueous mixture of an oleophobic, hydrophobic silicone fluid and a silicone-based emulsifier to form a stable water-in-oil emulsion and adding to said emulsion gel, said liquid crystal and perfluoropolyether components of said multiphase composition.
A method of forming a stable, multiphase composition comprising:
A method of forming a stable, multiphase composition comprising:
Dependencies are inferred from the claim text.