METHOD OF TREATING HAIR OR SKIN WITH A PERSONAL CARE COMPOSITION IN A FOAM FORM

• US 20190105242A1
• Filed: 10/10/2018
• Published: 04/11/2019
• Est. Priority Date: 10/10/2017
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Song, Brian Xiaoqing, Constantinides, Ioannis Constantine
• Granted Patent: US 10,426,713 B2
• Time in Patent Office: Days
• CPC Class Codes: A61K 2800/30 Characterized by the absence of a particular group of ingredients
• CPC Class Codes: A61K 2800/596 Mixtures of surface active compounds
• CPC Class Codes: A61K 2800/87 Application Devices; Containers; Packaging
• CPC Class Codes: A61K 8/046 Aerosols; Foams
• CPC Class Codes: A61K 8/44 Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
• CPC Class Codes: A61K 8/442 substituted by amido group(s)
• CPC Class Codes: A61K 8/466 containing sulfonic acid derivatives; Salts
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 5/006 Antidandruff preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair

Abstract

A method of treating hair or skin with a creamy foam. The method comprises dispensing a personal care composition from a mechanical foam dispenser as a dosage of foam, applying the dosage of foam to hair or skin, and rinsing the dosage of foam from hair or skin. The personal hair composition contains a surfactant system that is substantially free of sulfate-based surfactants. The personal hair composition has a viscosity of less than 60 cP and a lather volume greater than 77 cm³.

Claims

1. A method of treating hair or skin with a creamy foam, the method comprising:

a. dispensing a personal care composition from a mechanical foam dispenser as a dosage of foam;

b. applying the dosage of foam to hair or skin;

c. rinsing the dosage of foam from hair or skin;

wherein the personal care composition comprises a viscosity of less than 60 cP;

wherein the personal care composition comprises a lather volume greater than 77 cm³;

wherein the personal care composition comprises from about 10% to about 50%, by weight of the composition, a surfactant system wherein the surfactant system comprises;

(i) from about 10% to about 30%, by weight of the composition, of an acyl glutamate;

(ii) from about 0.5% to about 7%, by weight of the composition, of a zwitterionic co-surfactant;

wherein the surfactant system is substantially free of sulfate-based surfactants.

2. The method of claim 1, wherein the mechanical foam dispenser is a pump foam dispenser or a squeeze foam dispenser.

3. The method of claim 1, wherein the personal care composition comprises a lather volume from about 90 cm³ to about 183 cm³.

4. The method of claim 1, wherein the personal care composition comprises a lather volume greater than 85 cm³.

5. The method of claim 1, wherein the personal care composition comprises a viscosity from from about 4 cP to about 45 cP.

6. The method of claim 1, wherein the personal care composition comprises a viscosity less than 60 cP.

7. The method of claim 1, wherein the dosage of foam comprises a bubble size distribution comprising an R₃₂ of from about 5 μ

m to about 100 μ

m.

8. The method of claim 1, wherein the dosage of foam comprises a yield point of from about 5 Pa to about 100 Pa.

9. The method of claim 1, wherein the dosage of foam comprises a density of from about 0.02g/cm³ to about 0.2 g/cm³.

10. The method of claim 1, wherein the personal care composition comprises from about 20% to about 40%, by weight of the composition, surfactant system.

11. The method according to of claim 1, wherein the surfactant system further comprises an anionic co-surfactant selected from the group consisting of isethionates, sarcosinates, sulfosuccinates, sulfonates, sulfoacetates, glucosides, acyl glycinates, acyl alaninates, glucose carboxylates, amphoacetates, taurates, and mixture thereof.

12. The method of claim 10, wherein the surfactant system comprises from about 1% to about 10%, by weight of the composition, anionic co-sufactant.

13. The method according to claim 10, wherein the anionic co-surfactant comprises sodium cocoyl isethionate.

14. The method according to claim 1, wherein the zwitterionic surfactant is selected from the group consisting of cocamidopropyl betaine (CAPB), lauramidopropyl betaine (LAPB), and combinations thereof.

15. The method according to claim 1, wherein the surfactant system comprises a weight ratio of anionic surfactant to zwitterionic surfactant greater than 4:

1.

16. The method according to claim 1, wherein the composition is substantially free of a viscosity reducing agent selected from the group consisting of propylene glycol, dipropylene glycol, alcohols, glycerin, and combinations thereof.

17. The method according to claim 1, wherein the composition is substantially free of a thickener selected from the group consisting of acrylate polymers and co-polymers, xanthan gum, and combinations thereof.

18. The method according to claim 1, wherein the composition comprises a shampoo composition and the shampoo composition further comprises a conditioning agent selected from the group consisting of silicone conditioning agents, organic conditioning materials, and combinations thereof.

19. The method according to claim 1, wherein the composition comprises a shampoo composition and the shampoo composition further comprises an anti-dandruff active selected from the group consisting of piroctone olamine, pyridinethione salts, azoles (e.g., ketoconazole, econazole, and elubiol), selenium sulfide, particulate sulfur, salicylic acid, zinc pyrithione, and mixtures thereof.

20. The method according to claim 1, wherein the dosage of foam comprises a volume of from about 5 cm³ to about 150 cm3.