Slurry powder cosmetic compositions and methods

• US 9,370,471 B2
• Filed: 09/21/2012
• Issued: 06/21/2016
• Est. Priority Date: 09/21/2012
• Status: Active Grant

• Current Assignee: ELC Management LLC (The Estee Lauder Companies Inc.)
• Original Assignee: ELC Management LLC (The Estee Lauder Companies Inc.)
• Inventors: Finjan, Talal, Rizvi, Syed, Castro, John R.
• Primary Examiner(s): Haghighatian, Mina
• Assistant Examiner(s): KARPINSKI, LUKE E
• Application Number:
  US13/624,296
• Publication Number:
  US 20140086964A1
• Time in Patent Office: 1,369 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: A61K 2800/594 Mixtures of polymers
• CPC Class Codes: A61K 2800/624 by macromolecular compounds
• CPC Class Codes: A61K 8/022 Powders; Compacted Powders
• CPC Class Codes: A61K 8/0241 Containing particulates characterized by their shape and/or structure see also A61K8/04, A61K8/11, and A61K8/14, further aspects are classified in A61K2800/40 and subcodes
• CPC Class Codes: A61K 8/31 Hydrocarbons
• CPC Class Codes: A61K 8/585 Organosilicon compounds
• CPC Class Codes: A61K 8/891 saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• CPC Class Codes: A61K 8/895 containing silicon bound to unsaturated aliphatic groups, e.g. vinyl dimethicone
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin

Abstract

Slurry powder cosmetic composition comprising particulates coated with a binder composition, a silicone gel composition, and the evaporation residue of an aqueous based composition and a method for making the composition.

Claims

1. A slurry powder cosmetic formulation in the form of an evaporation residue of a slurry mixture comprising:

particulates coated with a pre-mixed binder composition that contains at least one nonpolar oil selected from the group consisting of dimethicone, C_2-30 fatty acid esters, paraffinic hydrocarbons and mixtures thereof;

at least one synthetic wax having a melting point of from about 30°

C. to about 110°

C., and at least one film former selected from the group consisting of trimethylsiloxy silicate, dimethicone silylate and mixtures thereof prior to incorporation into the slurry mixture;

a silicone gel composition comprising an organosiloxane elastomer solvated in dimethicone; and

an aqueous based composition comprising water;

wherein the binder composition comprises 5 to 75% by weight of said final slurry powder cosmetic formulation.

2. The formulation of claim 1 wherein the particulates comprise pigments or non-pigmented particulates.

3. The formulation of claim 2 wherein the pigments or non-pigmented particulates have a particle size of from about 0.01 to 100 microns.

4. The formulation of claim 3 wherein the pigments or non-pigmented particulates are surface treated prior to coating with the pre-mixed binder composition.

5. The formulation of claim 1 wherein the silicone gel composition comprises a mixture of dimethicone and a crosslinked organosiloxane elastomer.

6. The formulation of claim 1 wherein the silicone gel composition comprises a mixture of dimethicone and Polysilicone-11.

7. The formulation of claim 1 wherein the aqueous based composition comprises water and an ingredient selected from the group consisting of water soluble or water dispersible film forming polymers, humectants, botanical extracts and mixtures thereof.

8. The formulation of claim 7 wherein the aqueous based composition comprises water and at least one water soluble or dispersible film forming polymer.

9. The formulation of claim 7 wherein the aqueous based composition comprises water and at least one humectant.

10. The formulation of claim 7 wherein the evaporation residue of the slurry mixture is solvatable with non-polar solvents.

11. The formulation of claim 1 wherein the particulates have a particle size ranging from about 0.01 to 100 microns;

the silicone gel composition comprises a mixture of dimethicone and Polysilicone-11; and

wherein the aqueous based composition comprises an ingredient selected from the group consisting of water soluble polymer, humectant, botanical extract, and mixtures thereof.

12. The formulation of claim 1 which is anhydrous.

13. The formulation of claim 1 comprising from about 0.1 to 20% water.

14. The formulation of claim 1 wherein the paraffinic hydrocarbon is isododecane, polyisobutene, hydrogenated polyisobutene, or mixtures thereof.

15. The formulation of claim 1 wherein the ester comprises a glyceryl ester.

16. The formulation of claim 14 wherein the silicone gel composition comprises a mixture of dimethicone and Polysilicone-11.

18. The formulation of claim 7 wherein the aqueous based composition comprises water and at least one botanical extract.

19. The formulation of claim 8 wherein the aqueous based composition comprises from about 0.1 to 75% of water soluble or water dispersible film forming polymers.

20. The formulation of claim 9 wherein the aqueous based composition comprises from about 0.001 to 25% humectants.

21. The formulation of claim 18 wherein the aqueous based composition comprises from about 0.0001 to 10% botanical extracts by weight of the total formulation.

17. A slurry powder cosmetic formulation comprising the evaporation residue of the slurrying mixture comprising iron oxides or titanium dioxides coated, prior to incorporation into the formulation, with a binder composition that contains (a) at least one nonpolar oil selected from the group consisting of dimethicone, C2-30 fatty acid esters, paraffinic hydrocarbons, and mixtures thereof, (b) at least one synthetic wax having a melting point from 30-110°

C., and (c) at least one film former selected from the group consisting of trimethylsiloxy silicate and dimethicone silylate;

a silicone gel composition comprising an organosiloxane elastomer solvated in dimethicone; and

an aqueous based composition, where the iron oxides or titanium dioxides present in the formulation are evenly and thoroughly coated with the binder composition and the silicone gel composition.

22. A method for making a slurry powder formulation comprising the steps of:

(a) combining at least one nonpolar oil selected from the group consisting of dimethicone, C_2-30 fatty acid esters, paraffinic hydrocarbons and mixtures thereof;

at least one synthetic wax having a melting point of from about 30°

C. to about 110°

C., and at least one film former selected from the group consisting of trimethylsiloxy silicate, dimethicone silylate and mixtures thereof to form a binder composition;

(b) coating particulates with the binder composition of (a),

(c) adding a silicone gel composition comprising dimethicone and a silicone elastomer to the mixture of (b)

(d) adding an aqueous based composition comprising an ingredient selected from the group consisting of water soluble or water dispersible film forming polymers, humectants, botanical extracts and mixtures thereof to the mixture of (c),

(e) subjecting the mixture of (b), (c), and (d) to slurrying;

(f) evaporating the aqueous based composition from the slurry mixture,

to yield a slurry powder formulation which is the evaporation residue of the slurry mixture and contains 5 to 75% by weight of the total formulation of the binder composition.

23. The method of claim 22 wherein the slurrying is performed until the aqueous based composition has been absorbed by the particulates.

24. The method of claim 22 wherein the slurry powder formulation contains from about 0.01 to 20% water.