Concentrated personal cleansing compositions and methods

• US 11,202,746 B2
• Filed: 04/22/2016
• Issued: 12/21/2021
• Est. Priority Date: 04/23/2015
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Smith, III, Edward Dewey, McConaughy, Shawn David, Li, Jianjun Justin, Flickinger, Marc Adam
• Primary Examiner(s): Ogden, Jr., Necholus
• Application Number:
  US15/135,687
• Publication Number:
  US 20160310391A1
• Time in Patent Office: 2,069 Days
• CPC Class Codes: A61K 8/068 Microemulsions
• CPC Class Codes: A61K 8/345 containing more than one hydroxy group
• 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 8/463 containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
• CPC Class Codes: A61Q 13/00 Formulations or additives for perfume preparations essential oils or perfumes per se C11B9/00
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair

Abstract

Methods for enhancing fragrance of a rinse-off cleansing composition prior to use can include combining surfactant, perfume, solvent, and water, to form the composition, wherein the composition is not a ringing gel.

Claims

1. A method of enhancing fragrance of a rinse-off cleansing composition before use, and during cleansing, and perfume retention on the skin after cleansing, comprising:

providing a bottle containing a cleansing composition, wherein the cleansing composition comprises;

a.

i. from about 35% to about 85%, by weight of the composition, of surfactant consisting of sodium trideceth-n sulfate, wherein n is from about 1 to about 3;

ii.

from about 4% to about 30%, by weight of the composition, of a perfume, wherein the weight percent of perfume is from about 8% to about 90%, by weight of the surfactant;

iii. from about 6% to about 20%, by weight of the composition, of a hydric solvent wherein the hydric solvent consisting of dipropylene glycol;

and wherein the weight percent of the hydric solvent is from about 7% to about 60%, by weight of the surfactant; and

iv. from about 2% to about 57%, by weight of the composition, of water;

to form the cleansing composition;

wherein the rinse-off cleansing composition is not a ringing gel;

wherein the cleansing composition in the bottle comprises a gel structurant comprising a lamellar phase;

b. dispensing the cleansing composition from the bottle onto an implement or directly onto the skin;

c. lathering the cleansing composition in the implement or on the skin;

d. applying the cleansing composition to the skin to cleanse the skin;

e. rinsing the cleansing composition from the skin;

wherein at least a portion of the composition spontaneously becomes forms a microemulsion comprising at least a portion of the perfume upon dilution with water of about 3;

1 by weight (water;

composition) to about 10;

1 by weight (water;

composition) during the lathering, applying, and/or rinsing steps;

f. wherein the composition comprises a lather volume of more than 300 mL according to the Cylinder Method.

2. The method of claim 1, wherein the composition has a G′

at 1 Hz of about 25 Pa to about 3,000 Pa and wherein the composition has a total GCMS count higher than that of a control where the solvent is replaced with water, when the total GCMS count is measured in accordance with the PHADD method at zero dilution.

3. The method of claim 1, wherein the composition comprises from about 35% to about 60%, by weight of the composition, of surfactant.

4. The method of claim 1, wherein the surfactant comprises from about 30% to about 40%, by weight of the composition, of.

5. The method of claim 1, wherein the surfactant comprises sodium trideceth-2 sulfate, sodium trideceth-3 sulfate, or a combination thereof.

6. The method of claim 4, wherein the surfactant further comprises from about 2% to about 10%, by weight of the composition, of a cosurfactant.

7. The method of claim 6, wherein the cosurfactant comprises a betaine, an alkyl amidopropyl betaine, cocoamidopropyl betaine, or a combination thereof.

8. The method of claim 1, wherein the composition comprises from about 8% to about 20%, by weight of the composition, of the perfume.

9. The method of claim 1, wherein the composition comprises from about 8% to about 16%, by weight of the composition, of the solvent.

10. The method of claim 1, wherein the composition comprises from about 30% to about 61%, by weight of the composition, of the combination of water and solvent.

11. The method of claim 1, wherein the perfume is from about 20% to about 40%, by weight of the surfactant.

12. The method of claim 1, wherein the weight percent of hydric solvent is from about 17% to about 35%, by weight of the surfactant.

13. The method of claim 1, wherein the GCMS count is at least about 15% more than the composition prior to dilution.

14. A method of enhancing fragrance of a rinse-off cleansing composition before use, and during cleansing, and perfume retention on the skin after cleansing, comprising:

a. providing a bottle containing a cleansing composition, wherein the cleansing composition comprises;

i. from about 35% to about 45%, by weight of the composition, of a first surfactant comprising sodium trideceth sulfate wherein n is from about 1 to about 3;

ii. from about 2% to about 10%, by weight of the composition, of a cosurfactant comprising a betaine, an alkyl amidopropyl betaine, cocoamidopropyl betaine, or a combination thereof;

iii. from about 4% to about 15%, by weight of the composition, of a perfume;

iv. from about 6% to about 20%, by weight of the composition, hydric solvent; and

v. water;

wherein the rinse-off cleansing composition is not a ringing gel;

wherein the cleansing composition in the bottle comprises a gel structurant comprising a lamellar phase;

b. dispensing the cleansing composition from the bottle onto an implement or directly onto the skin;

c. lathering the cleansing composition in the implement or on the skin;

d. applying the cleansing composition to the skin to cleanse the skin;

e. rinsing the cleansing composition from the skin;

wherein at least a portion of the composition spontaneously forms a microemulsion comprising at least a portion of the perfume upon dilution with water of about 3;

1 by weight (water;

composition) to about 10;

1 by weight (water;

composition) during the lathering, applying, and/or rinsing steps;

wherein the composition comprises a lather volume of more than 300 mL according to the Cylinder Method.

15. A method of enhancing fragrance of a rinse-off cleansing composition before use, and during cleansing, and perfume retention on the skin after cleansing, comprising:

a. providing a bottle containing a cleansing composition, wherein the cleansing composition comprises;

i. from about 35% to about 60% of total surfactant comprising;

1. from about 30% to about 40%, by weight of the composition, of a first surfactant comprising sodium trideceth-n sulfate, wherein n is from about 1 to about 3;

2. from about 5% to about 8%, by weight of the composition, of a cosurfactant comprising cocamidopropyl betaine;

ii. from about 4% to about 15%, by weight of the composition, of a perfume;

iii. from about 7% to about 19%, by weight of the composition, of dipropylene glycol; and

iv. water;

wherein the rinse-off cleansing composition is not a ringing gel;

wherein the cleansing composition in the bottle comprises a gel structurant comprising a lamellar phase;

b. dispensing the cleansing composition from the bottle onto an implement or directly onto the skin;

c. lathering the cleansing composition in the implement or on the skin;

d. applying the cleansing composition to the skin to cleanse the skin;

e. rinsing the cleansing composition from the skin;

wherein at least a portion of the composition spontaneously becomes forms a microemulsion comprising at least a portion of the perfume upon dilution with water of about 3;

1 by weight (water;

composition) to about 10;

1 by weight (water;

composition) during the lathering, applying, and/or rinsing steps;

wherein the composition comprises a lather volume of more than 300 mL according to the Cylinder Method.

16. The method of claim 15 wherein the composition comprises a lather volume of more than 500 mL.