Granted Patent B2

US 6,878,382 · App. 10/396,948 · Granted Apr 12, 2005

Abstract

Claims (27)

1. A personal care composition comprising by weight:

(a) from about 5% to about 35% of a hydrophobic gel comprising:

i. a cholesteryl derivative;

ii. an oil swelling clay material;

iii. a non-volatile liquid oil; and

iv. a polar solvent; and

(b) a carrier which is substantially free of water, surfactant, and lecithin.

2. A personal care composition for use as a lipstick, a foundation, or a cream comprising by weight:

(a) from about 5% to about 35% of a hydrophobic gel comprising:

i. a cholesteryl derivative;

ii. an oil swelling clay material;

iii. a non-volatile liquid oil; and

iv. a polar solvent; and

(b) a carrier which is substantially free of water, surfactant, and lecithin, the carrier comprising one or more of solid wax, and a powder or coloring pigment.

3. The composition of claim 1 for use as a lipstick comprising weight:

(a) from about 10% to about 20% of a hydrophobic gel comprising, by weight of the entire composition:

i. from about 2% to about 7% of a cholesteryl derivative;

ii. from about 0.1% to about 1% of an oil swelling clay material;

iii. from about 2% so about 10% of a non-volatile liquid oil; and

iv. from about 0.01% to about 10% of a polar solvent; and

(b) a carrier which is substantially free of water, surfactant, and lecithin; the carrier comprising a solid wax and a powder or coloring pigment.

4. The lipstick composition of claim 3 further comprising a water-soluble humectant in an amount soluble in the polar solvent.

5. The lipstick composition of claim 4 wherein the water-soluble humectant is from about 1% to about 5% of niacinamide and the polar solvent is glycerin, the glycerin comprised at an amount of from about 0.01% to about 10%.

6. A method of making the composition of claim 1 comprising the steps of:

(a) mixing the mixture of the cholesteryl derivative, the oil swelling clay material, and the non-volatile liquid oil at a speed of from about 1500 rpm to about 3000 rpm and at a temperature of from about 85° C. to about 95° C.;

(b) mixing the polar solvent wish the mixture obtained in step (a) at a speed of at least about 4000 rpm and at a temperature of from about 85° C. to about 92° C.; and

(c) mixing the carrier with the mixture obtained in step (b).

Assignments (10)