Hair conditioning compositions comprising low viscosity emulsified silicone polymers

• US 10,363,211 B2
• Filed: 09/26/2014
• Issued: 07/30/2019
• Est. Priority Date: 09/27/2013
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Snyder, Michael Albert, Weaver, Martha Jane
• Primary Examiner(s): Wax, Robert A
• Assistant Examiner(s): Tcherkasskaya, Olga V
• Application Number:
  US14/498,215
• Publication Number:
  US 20150093420A1
• Time in Patent Office: 1,768 Days
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 2800/5426 cationic
• CPC Class Codes: A61K 8/042 Gels
• CPC Class Codes: A61K 8/34 Alcohols
• CPC Class Codes: A61K 8/416 Quaternary ammonium compounds A61K8/35 takes precedence
• CPC Class Codes: A61K 8/89 Polysiloxanes
• CPC Class Codes: A61K 8/898 containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners

Abstract

Embodiments of a hair conditioning composition include a silicone polymer comprising one or more quaternary groups, at least one silicone block comprising greater than 200 siloxane units, at least one polyalkylene oxide structural unit, and at least one terminal ester group. The silicone polymer has a viscosity of up to 100,000 mPa·s. The silicone polymer is added to create a pre-emulsified dispersion with a particle size of less than about 1 micron. The hair conditioning composition includes a gel matrix including a cationic surfactant, a high melting point fatty compound, and an aqueous carrier.

Claims

1. A hair conditioning composition comprising:

a) a silicone polymer comprising;

i. one or more quaternary groups;

ii. at least one silicone block comprising greater than 200 siloxane units;

iii. at least one polyalkylene oxide structural unit; and

iv. at least one terminal ester group;

wherein said silicone polymer has a viscosity of 500 mPa·

s to 100,000 mPa·

s at 20°

C. at 100% concentration of said silicone polymer with no additional solvents and a shear rate of 0.1 s<sup>−

1</sup>,

wherein said silicone polymer is added to create a pre-emulsified dispersion with a particle size of less than about 1 micron, and

b) a gel matrix comprising;

i. a cationic surfactant;

ii. a high melting point fatty compound, wherein the high melting point fatty compound has a melting point of about 25°

C. or higher; and

iii. an aqueous carrier;

wherein said silicone polymer is mixed with said gel matrix.

2. The hair conditioning composition of claim 1, wherein said silicone block comprises from about 300 to about 500 siloxane units.

3. The hair conditioning composition of claim 1, wherein said silicone polymer is present in an amount of from about 0.05% to about 15% by weight of the composition.

4. The hair conditioning composition of claim 1, wherein said silicone polymer is present in an amount of from about 0.1% to about 10% by weight of the composition.

5. The hair conditioning composition of claim 1, wherein said silicone polymer is present in an amount of from about 0.15% to about 5% by weight of the composition.

6. The hair conditioning composition of claim 1, wherein the silicone polymer includes a viscosity from 500 mPa·

s to 50,000 mPa·

s.

7. The hair conditioning composition of claim 6, wherein the silicone polymer includes a viscosity from 500 mPa·

s to 5000 mPa·

s.

8. The hair conditioning composition of claim 1, wherein said cationic surfactant is present in an amount of from about 0.1% to about 10% by weight of the composition.

9. A method of providing improved conditioning benefits to hair or skin, said method comprising the step of applying to said hair or skin the hair conditioning composition of claim 1.