Patent ID: 6482398
Filing Date: 2002-11-19
Classification: A61K,A61Q

Abstract:
A lipstick composition comprising:a. from about 30% to about 95% of a first material wherein said first material is lipophilic and is selected from the group consisting of waxes, volatile oils, nonvolatile oils and mixtures thereof and wherein the oils are compatible with said wax when said wax is liquified; and b. from about 5% to about 70% of a second nonvolatile material selected from the group consisting of polydimethylsiloxane fluids, poly(phenylmethylsiloxane) fluids, poly(fluoroalkylmethylsiloxane) fluids, perfluoropolyethers, copolymers thereof, and mixtures thereof, the second material having a viscosity from about 10 to about 5,000 centistokes; wherein said second material is incompatible with said first material and is entrapped in said first material where upon application of said lipstick composition to the lips, said second material separates from said first material forming a barrier layer over said first material deposited on the lips and wherein said composition is free of surfactants that would sufficiently stabilize the second material entrapped within the first material.