Sprayable compositions containing dispersed powders and methods for using the same

A method for the preparation of a sprayable, low viscosity composition suitable for topical application to skin or hair, the method comprising the steps of:

• (a) providing an oil component comprising a water-in-oil emulsifier;
• (b) mixing an organoclay component comprising an organoclay, a nonpolar carrier, and a polar swelling agent with the oil component;
• (c) mixing a substantially insoluble powder with the oil component;
• and
• (d) blending an aqueous component with the oil component to form a water-in-oil emulsion, the amounts of materials being adjusted such that the resulting composition comprises from about 20 to about 80 percent of the oil component, from about 2 to about 12 percent of the water-in-oil emulsifier, from about 0.1 to about 3 percent of the organoclay, from about 1.5 to about 19 percent of the nonpolar carrier, from about 0.02 to about 2 percent of the polar swelling agent, from about 1 to about 12 percent of the substantially insoluble powder, from about 5 to about 50 percent of the aqueous component, and from about 0.01 to about 2.00 percent of the electrolyte, said composition being sprayable via non-aerosol means, and undergoing a reduction in viscosity upon exposure to a shear force exerted by said non-aerosol means.

A sprayable composition suitable for protecting human skin from ultraviolet radiation, the composition comprising:

• (a) from about 30 to about 60 percent of a silicone component;
• (b) from about 5 to about 10 percent of a water-in-silicone emulsifier dispersed within the silicone component;
• (c) from about 2 to about 20 percent of an organoclay component dispersed within the silicone component, wherein the organoclay component comprises from about 5 to about 15 percent of an organoclay selected from the group consisting of quaternium-18 bentonite, benzalkonium bentonite, and stearalkonium bentonite, from about 75 to about 95 percent of a nonpolar carrier, and from about 1 to about 10 percent of a polar swelling agent;
• (d) from about 3 to about 9 percent of titanium dioxide dispersed within the silicone component;
• and
• (e) from about 25 to about 35 percent of an aqueous component emulsified within the silicone component to form a water-in-silicone emulsion, wherein the aqueous component comprises from about 0.01 to about 2.00 percent of an electrolyte, said composition being sprayable via non-aerosol means, and undergoing a reduction in viscosity upon exposure to a shear force exerted by said non-aerosol means.