Stable nonaqueous liquid reactive skin care and cleansing packaged product

• US 20050123487A1
• Filed: 12/08/2003
• Published: 06/09/2005
• Est. Priority Date: 12/08/2003
• Status: Abandoned Application

• Current Assignee: Unilever Home & Personal Care Usa Division Of Conopco, Inc.
• Original Assignee: Unilever Home & Personal Care Usa Division Of Conopco, Inc.
• Inventors: Siciliano, Marcina, Hurley, Megan Kathleen, Puleo, Andre, Katz, Melissa Iva, Spadini, Alessandro Luigi, Williams, David Robert, Hillman, Evan
• Application Number:
  US10/730,709
• Publication Number:
  US 20050123487A1
• Time in Patent Office: Days
• US Class Current: 424/47
• CPC Class Codes: A61K 2800/222 Effervescent
• CPC Class Codes: A61K 2800/88 Two- or multipart kits
• CPC Class Codes: A61K 8/22 Peroxides; Oxygen; Ozone
• CPC Class Codes: A61K 8/46 containing sulfur A61K8/44 takes precedence
• CPC Class Codes: A61Q 19/02 for chemically bleaching or whitening the skin
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 9/04 Depilatories

Abstract

A cleansing or skin treatment product is described which has one or more chambers and contains a substantially nonaqueous composition having a continuous and a discontinuous phase in at least one chamber. Components of the discontinuous phase can chemically react with each other or with water when water is blended with the nonaqueous cleansing or skin treatment composition during consumer use.

Claims

1. A skin care or cleansing packaged product, comprising:

a. a container having a first chamber and optionally a second chamber, the chamber(s) having an outlet;

b. a composition contained in the first chamber having a dispersed phase including a first component, the first component being capable of chemically reacting with a second component that is different from the first;

c. a continuous phase present in the composition composed of a substantially anhydrous carrier contained in the first chamber;

d. at least one stabilizer contained in the dispersed phase wherein the stabilizer is selected from an organophilic particle, an amphipathic compound or polymer, or a crystalline hydroxyl containing stabilizer;

e. an anionic surfactant contained in the dispersed phase in a concentration of at least 2% by wt. when the at least one stabilizer consists solely of waxy particles, amphipathic compounds or polymers, or a combination thereof; and

f. wherein the first component is substantially unsolvated in the carrier.

2. The packaged product of claim 1 wherein the product has both a first and a second chamber and the outlet of the first chamber and the outlet of the second chamber fluidly communicate with each other to allow mixing of the contents of the first and second chamber prior to deposition on the skin or hair of a user.

3. The packaged product of claim 1 wherein the product has both a first and a second chamber and the outlet of the first chamber and the outlet of the second chamber do not fluidly communicate with each other whereby the mixing of the contents of the first and second chamber occurs after deposition of the contents of the first and second chamber on the skin or hair of a user.

4. The packaged product of claim 2 wherein the dispersed phase in the first chamber has less than 25% by wt. of the second component and the dispersed phase in the second chamber has less than 25% by wt. of the first component.

5. The packaged product of claim 1 wherein a cup is releasably attached to the container and positioned for receiving the contents of the first chamber.

6. The packaged product of claim 5 wherein the cup is marked with a fill line for introducing a measured amount of the second component.

7. The packaged product of claim 1 where the second component is water.

8. The packaged product of claim 5 wherein the cup is positioned for receiving the contents of the second chamber.

9. The packaged product of claim 1 further comprising a unit dose pump.

10. The packaged product of claim 1 wherein the outlet of the first chamber contains a one way valve.

11. The packaged product of claim 10 wherein the valve is selected from a duckbill valve, a ball valve or a slit valve.

12. The packaged product of claim 1 wherein the at least one reactive component has a particle size range of about 0.1 to 5000μ

.

13. The packaged product of claim 1 wherein the stabilizer is substantially solvated in the continuous phase.

14. The packaged product of claim 1 wherein the stabilizer is an organophilic particle in the particle size range of about 0.02 to 250μ

.

15. The packaged product of claim 1 wherein the stabilizer is selected from a waxy particle, organophilic silica, organophilic clay, or blends thereof.

16. The packaged product of claim 1 wherein the stabilizer is an amphipathic compound or polymer with some oil soluble groups substantially solvated by the carrier and some polar groups substantially unsolvated by the carrier.

17. The packaged product of claim 1 where the stabilizer is an amphipathic polymer selected from polysiloxanes, polyalkylene ethers, polysaccharides, polyacrylates, or polystyrene each substituted with at least one linear or branched C8 to C24 alkyl or alkenyl chain.

18. The packaged product of claim 1 wherein the first component is capable of producing a gas in aqueous solution when reacted with an acid and the second component forms an acid in the presence of water.

19. The packaged product of claim 1 wherein the first component is capable of generating sulfide ions when reacted with an alkaline material and water.

20. The packaged product of claim 1 wherein the first component is capable of generating a peroxide compound when dissolved in water.