Hair Conditioning Compositions Comprising Low Viscosity Emulsified Silicone Polymers

• US 20150093420A1
• Filed: 09/26/2014
• Published: 04/02/2015
• 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
• Granted Patent: US 10,363,211 B2
• Time in Patent Office: Days
• US Class Current: 424/401
• 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 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 up to 100,000 mPa·

s,

wherein said silicone polymer is 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; and

iii. an aqueous carrier.

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 said silicone polymer is defined by the following chemical structure:

M-Y—

[—

(N⁺R₂-T-N⁺R₂)—

Y—

]_m—

[—

(NR²-A-E-A′

-NR²)—

Y-]-_k-M  

 

(Ia)

wherein;

m is an average value of from above 0 to 100

k is an average value of from above 0 to 50

M represents a terminal group, comprising terminal ester groups selected from

—

OC(O)—

Z

—

OS(O)₂—

Z

—

OS(O₂)O—

Z

—

OP(O)(O—

Z)OH

—

OP(O)(O—

Z)₂

wherein Z is selected from monovalent organic residues having up to 40 carbon atoms,

wherein A and A′

each are independently selected from a single bond or a divalent organic group having up to 10 carbon atoms and one or more hetero atoms, and

E is a polyalkylene oxide group of the general formula;

—

[CH₂CH₂O]_q—

[CH₂CH(CH₃)O]_r—

[CH₂CH(C₂H₅)O]_s—

with

q=0 to 200,

r=0 to 200,

s=0 to 200,

and q+r+s =1 to 600,

R is selected from monovalent organic groups having up to 22 carbon atoms, and wherein the free valencies at the nitrogen atoms are bound to carbon atoms, R² is selected from hydrogen or R,

Y is a group of the formula;

—

K—

S—

K— and

-A-E-A′

- or -A′

-E-A-,

with

S═

7. The hair conditioning composition of claim 6 whereby the K residues in the —

K—

S—

K—

moiety are identical or different, and are bound to the silicon atom of the residue S via a C—

Si-bond.

8. The hair conditioning composition of claim 1, wherein said silicone polymer is defined by the following chemical structure:

M-Y—

[—

(N⁺R₂-T-N⁺R₂)—

Y—

]_m—

[—

(N⁺R²₂-A-E-A′

-N⁺R²₂)—

Y-]_k-M  

 

(Ib)

wherein;

m is an average value of from above 0 to 100

k is an average value of from above 0 to 50

M represents a terminal group, comprising terminal ester groups selected from

—

OC(O)—

Z

—

OS(O)₂—

Z

—

OS(O₂)O—

Z

—

OP(O)(O—

Z)OH

—

OP(O)(O—

Z)₂

wherein Z is selected from monovalent organic residues having up to 40 carbon atoms,

wherein A and A′

each are independently selected from a single bond or a divalent organic group having up to 10 carbon atoms and one or more hetero atoms, and

E is a polyalkylene oxide group of the general formula;

—

[CH₂CH₂O]_q—

[CH₂CH(CH₃)O]_r—

[CH₂CH(C₂H₅)O]_s—

with

q=0 to 200,

r=0 to 200,

s=0 to 200,

and q+r+s=1 to 600,

R is selected from monovalent organic groups having up to 22 carbon atoms, and wherein the free valencies at the nitrogen atoms are bound to carbon atoms, R² is selected from hydrogen or R,

Y is a group of the formula;

—

K—

S—

K— and

-A-E-A′

- or -A′

-E-A-,

with

S═

9. The hair conditioning composition of claim 8 whereby the K residues in the —

K—

S—

K—

moiety are identical or different, and are bound to the silicon atom of the residue S via a C—

Si-bond.

10. The hair conditioning composition of claim 8 wherein:

m is >

0 to 10,

k is >

0 to 10,

M is —

OC(O)—

Z,

Z is hydrocarbon chain with 0 to 40 carbons,

q=0-50, r=0-50, q+r is at least 1, s=0,

R² is methyl, and

n=300-500.

11. The hair conditioning composition of claim 1 wherein the silicone polymer includes a viscosity from 500 to 50,000 mPa·

s.

12. The hair conditioning composition of claim 11 wherein the silicone polymer includes a viscosity from 500 to 5000 mPa·

s.

13. 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.

14. 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.