Shampoo containing a gel network

• US 8,367,048 B2
• Filed: 11/21/2006
• Issued: 02/05/2013
• Est. Priority Date: 06/04/2002
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Wells, Robert Lee, Royce, Douglas Allan, Johnson, Eric Scott, Hilvert, Jennifer Elaine, Jin, Yingkun, Hurley, Brian Michael, Manuel, Teresa Cuasay, Heath, Benjamin Parker, Elsner, Elizabeth Marie Marzonie
• Primary Examiner(s): VENKAT, JYOTHSNA A
• Application Number:
  US11/602,705
• Publication Number:
  US 20070110700A1
• Time in Patent Office: 2,268 Days
• Field of Search: None
• US Class Current: 424/70.19
• CPC Class Codes: A61K 2800/5426 cationic
• CPC Class Codes: A61K 2800/596 Mixtures of surface active compounds
• CPC Class Codes: A61K 8/0295 Liquid crystals
• CPC Class Codes: A61K 8/042 Gels
• CPC Class Codes: A61K 8/34 Alcohols
• CPC Class Codes: A61K 8/342 Alcohols having more than seven atoms in an unbroken chain
• CPC Class Codes: A61K 8/375 the alcohol moiety containing more than one hydroxy group
• CPC Class Codes: A61K 8/41 Amines
• CPC Class Codes: A61K 8/416 Quaternary ammonium compounds A61K8/35 takes precedence
• 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 8/463 containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
• CPC Class Codes: A61K 8/4933 having sulfur as an exocyclic substituent, e.g. pyridinethione
• CPC Class Codes: A61K 8/4946 Imidazoles or their condensed derivatives, e.g. benzimidazoles
• CPC Class Codes: A61K 8/737 Galactomannans, e.g. guar; Derivatives thereof
• CPC Class Codes: A61K 8/89 Polysiloxanes
• CPC Class Codes: A61K 8/891 saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• CPC Class Codes: A61Q 5/006 Antidandruff preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners
• CPC Class Codes: C11D 17/003 Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
• CPC Class Codes: C11D 3/2013 : fatty or with at least 8 carbon atoms in the alkyl chain

Abstract

Shampoo compositions comprise (a) from about 5% to about 50% of one or more detersive surfactants, by weight of the shampoo composition; (b) a dispersed gel network phase comprising, by weight of the shampoo composition, (i) at least about 0.05% of one or more fatty amphiphiles; (ii) at least about 0.01% of one or more secondary surfactants; and (iii) water; and (c) at least about 20% of an aqueous carrier, by weight of the shampoo composition. A process for preparing a shampoo composition comprises the steps of: (a) combining a fatty amphiphile, a secondary surfactant, and water at a temperature sufficient to allow partitioning of the secondary surfactant and the water into the fatty amphiphile to form a pre-mix; (b) cooling the pre-mix below the chain melt temperature of the fatty amphiphile to form a gel network; (c) adding the gel network to one or more detersive surfactants and an aqueous carrier to form a shampoo composition.

Claims

1. A shampoo composition comprising:

a) from about 5% to about 50% of one or more anionic detersive surfactants, by weight of said shampoo composition;

b) from about 5% to about 40% by weight of the shampoo composition of a pre-formed solid crystalline gel network phase consisting of;

i) from about 0.05% to about 14% of one or more fatty alcohols by weight of said shampoo composition;

ii) from about 0.3% to about 5% by weight of said shampoo composition of one or more surfactants selected from the group consisting of anionic, cationic, and mixtures thereof; and

iii) water;

wherein the fatty alcohol and the surfactants are combined in a ratio of from 1;

1 to 40;

1; and

c) from about 20% to about 95% of an aqueous carrier, by weight of said shampoo composition; and

d) from about 0.01% to about 5% by weight of said shampoo composition of an anti-dandruff active.

2. A shampoo composition according to claim 1, further comprising a deposition aid.

3. A shampoo composition according to claim 2, wherein said deposition aid is a cationic polymer.

4. A shampoo composition according to claim 3, wherein said cationic polymer has a molecular weight from about 10,000 to about 10,000,000 and a charge density from about 0.9 meq/g to about 7.0 meq/g.

5. A shampoo composition according to claim 4, wherein said charge density is from about 0.9 meq/g to about 5 meq/g.

6. A shampoo composition according to claim 1, further comprising a suspending agent.

7. A shampoo composition according to claim 6, wherein said suspending agent is a crystalline suspending agent.

8. A shampoo composition according to claim 1 , wherein the anti-dandruff active is selected from the group consisting of pyridinethione salts, azoles, selenium sulfide, particulate sulfur, keratolytic agents, octopirox, ciclopirox olamine, melaleuca, charcoal, and mixtures thereof.

9. A shampoo composition according to claim 8, wherein the anti-dandruff active is a pyridinethione salt.

10. A shampoo composition according to claim 9, wherein the pyridinethione salt is selected from the group consisting of zinc pyrithione, copper pyrithione, or mixtures thereof.

11. A shampoo composition according to claim 10, wherein the anti-dandruff active is zinc pyrithione.

12. A shampoo composition according to claim 8, wherein the anti-dandruff active is an azole.

13. A shampoo composition according to claim 12, wherein the anti-dandruff dandruff active is an imidazole selected from the group consisting of climbazole, ketoconazole, and mixtures thereof.

14. A method of treating hair and skin, said method comprising the step of applying to the hair and skin a shampoo composition according to claim 1.