Patent ID: 6017546
Filing Date: 2000-01-25
Classification: A61K,A61Q,Y10S

Abstract:
A method of making a gel comprising (i) forming an oil phase having a volatile silicone, a siloxane polyether, and an emollient; (ii) forming a water phase having water, a water soluble humectant with a refractive index above 1.35, and an oxyethylene functional organosilane; (iii) measuring the refractive index of the oil phase and the water phase; (iv) matching the refractive indices of the oil phase and the water phase; (v) adding the water phase to the oil phase: and (vi) subjecting the phases to shear mixing; the volatile silicone being selected from the group consisting of cyclopolysiloxanes of the formula {(CH.sub.3).sub.2 SiO}.sub.x and linear siloxanes of the formula (CH.sub.3).sub.3 SiO{(CH.sub.3).sub.2 SiO}.sub.y Si(CH.sub.3).sub.3 in which x is three to ten and y is zero to four; and the oxyethylene functional organosilane has the formula RSiR'.sub.3 in which R is the radical --O(CH.sub.2 CH.sub.2 O).sub.x R""; R' is R or an alkyl radical having one to six carbon atoms; and R"" is selected from the group consisting of hydrogen, an alkyl group of one to six carbon atoms, and an aryl group; and x is six to thirty.