Hair composition

• US 11,103,438 B2
• Filed: 01/13/2016
• Issued: 08/31/2021
• Est. Priority Date: 01/16/2015
• Status: Active Grant

• Current Assignee: Conopco (Unilever PLC)
• Original Assignee: Conopeo Incorporated
• Inventors: Bentley, Christopher David, Chandra, Lalitesh, Griffiths, Llyr Glyndwr, Windisch, Janet Drobits, Coan, Lynsey Joanne
• Primary Examiner(s): Venkat, Jyothsna A
• Application Number:
  US15/543,684
• Publication Number:
  US 20170367962A1
• Time in Patent Office: 2,057 Days
• Field of Search: None
• CPC Class Codes: A61K 2800/34 Free of silicones
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 2800/413 Nanosized, i.e. having sizes below 100 nm
• CPC Class Codes: A61K 2800/54 Polymers characterized by specific structures/properties
• CPC Class Codes: A61K 8/0241 Containing particulates characterized by their shape and/or structure see also A61K8/04, A61K8/11, and A61K8/14, further aspects are classified in A61K2800/40 and subcodes
• CPC Class Codes: A61K 8/0291 Micelles
• CPC Class Codes: A61K 8/06 Emulsions
• CPC Class Codes: A61K 8/8147 Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/8152 Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/06 Preparations for styling the hair, e.g. by temporary shaping or colouring
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners

Abstract

A rinse off hair treatment composition comprising;

• • a. a pressure sensitive adhesive emulsion comprising one or more pressure sensitive polymer, wherein the pressure sensitive polymer is not silicone pressure sensitive polymer, and
  • b. at least one material selected from the group consisting of
    • i) a hair conditioning agent;
    • ii) a hair cleansing agent, and,
  • c. a deposition aid.

Claims

1. A rinse off hair treatment composition consisting of:

a. a pressure sensitive adhesive emulsion comprising an active pressure sensitive polymer, wherein the active pressure sensitive polymer is not a silicone pressure sensitive polymer, and wherein the active pressure sensitive polymer is an acrylic pressure sensitive copolymer having;

i) an acrylic group having a side-chain with at least 4 carbons; and

ii) an acrylic group having a C1-C6 side chain,

b. at least one material selected from the group consisting of

i) a hair conditioning agent; and

ii) a hair cleansing agent, and

c. a deposition polymer selected from the group consisting of cationic cellulose and cationic guar gum derivatives,

d. water, and

e. optionally, other ingredients;

wherein the active pressure sensitive polymer is present at 0.01 to 10 wt. % in the rinse off hair treatment composition.

2. The rinse off hair treatment composition according to claim 1, wherein the particle size of the pressure sensitive adhesive emulsion is 1 nm to 1 um.

3. The rinse off hair treatment composition according to claim 1, wherein the acrylic group having a side chain with at least 4 carbons is butyl acrylate and the acrylic group having a C1-C6 side chain is methacrylic acid.

4. The rinse off hair treatment composition according to claim 1, wherein the rinse off composition is a shampoo or conditioner composition.

5. The rinse off hair treatment composition according to claim 4, which is a shampoo, wherein the pH is 7 or greater.

6. The rinse off hair treatment composition according to claim 1, wherein the composition is a shampoo composition comprising a micellar structured liquid having a viscosity in the range of from 1,000 cPs to 15,000 cPs as measured on a Brookfield DV2T Helipath viscometer, at 30°

C. using a RV5 spindle at 20 RPM.

7. A rinse off hair treatment composition according to claim 1, wherein the composition is a conditioning composition comprising a micellar structured liquid having a viscosity in the range of from 1,000 cPs to 450,000 cPs at measured on a Brookfield DV2T Helipath viscometer, at room temperature, using a TA/TB bar spindle with a helical path at 0.5 RPM.

8. A method of treating hair comprising:

applying to the hair a rinse off hair treatment composition as defined in claim 1,

leaving the composition on the hair for less than one minute to 10 minutes, and

rinsing the composition off of the hair.

9. The rinse off hair treatment composition according to claim 1 wherein the acrylic group having a side chain with at least 4 carbons is selected from the group consisting of n-butyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, n-hexyl acrylate, isooctyl acrylate and dodecyl acrylate, and the acrylic group having a C1-C6 side chain is selected from the group consisting of acrylic acid, methyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate, and butyl acrylate.

10. The rinse off hair treatment composition of claim 1, wherein the other ingredients are selected from the group consisting of cationic surfactants, suspending agents, thickeners, viscosity modifiers, silicone hair conditioning oils, non-silicone hair conditioning oils, preservatives, stabilizers to inhibit darkening, coloring agents, polyols, chelating agents, antioxidants, fragrances, perfuming agents, antimicrobials, sunscreens, lactic acid, stearamidopropyl dimethylamine, cetearyl alcohol, an alkali metal salt, sodium hydroxide, carbomer, sodium laureth sulphate, and cocamidopropyl betaine.