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EP-4429629-B1 - HAIR COMPOSITION COMPRISING A CATIONIC CELLULOSE AND A SILICONE COMPOUND

EP4429629B1EP 4429629 B1EP4429629 B1EP 4429629B1EP-4429629-B1

Inventors

  • AO, Mingqi
  • LE, Yingyi
  • PI, Yingying

Dates

Publication Date
20260506
Application Date
20221025

Claims (15)

  1. A hair care composition comprising: i) a cleansing surfactant comprising an anionic surfactant; ii) a cationic cellulose; and iii) a silicone compound having mean particle size from 150 to 450nm; wherein the weight ratio of the amount of said silicone compound to the amount of said cationic cellulose is from 4.3:1 to 10:1; wherein the mean particle size of the silicone compound is measured by means of a laser light scattering technique.
  2. The hair care composition as claimed in claim 1 wherein said cationic cellulose is Polyquaternium 10.
  3. The hair care composition as claimed in claim 1 or 2 wherein said silicone compound comprises dimethiconol, dimethicone, amodimethicone, derivatives or mixtures thereof thereof, preferably comprises dimethiconol, dimethicone, derivatives or a mixture thereof, more preferably comprises dimethiconol.
  4. The hair care composition as claimed in any of claims 1 to 3 wherein said composition comprises 0.2 to 1%, preferably 0.3 to 1%, more preferably from 0.3 to 0.6% of said cationic cellulose by weight of the composition.
  5. The hair care composition as claimed in any of claims 1 to 4 wherein said composition comprises 0.5 to 5%, preferably from 1 to 3%, more preferably from 1.3 to 2.5% of said silicone by weight of the composition.
  6. The hair care composition as claimed in any of claims 1 to 5 wherein said composition comprise an antidandruff agent, selected from zinc pyrithione, piroctone olamine, azole based anti-fungal agents, selenium sulfide and mixtures thereof.
  7. The hair care composition as claimed in claim 6 wherein said composition comprises 0.01 to 10%, preferably 0.05 to 5%, more preferably from 0.1 to 2%, and most preferably from 0.2 to 1.5% of said antidandruff agent by weight of the composition.
  8. The hair care composition as claimed in any of claims 1 to 7 wherein said anionic surfactant is an ethoxylated alkyl sulphate a degree of ethoxylation of less than 3, preferably sodium lauryl ether sulphate.
  9. The hair care composition as claimed in any of claims 1 to 8 wherein said composition additionally comprises a cationic polymer.
  10. The hair care composition as claimed in claim 9 wherein said composition comprises a cationic guar polymer, preferably guar hydroxypropyltrimonium chloride.
  11. The hair care composition as claimed in any of claims 1 to 10 wherein said composition comprises an amphoteric surfactant, preferably a betaine surfactant, more preferably one of alkyl amidopropyl betaines.
  12. The hair care composition as claimed in any of claims 1 to 11 wherein said composition is a shampoo.
  13. A non-therapeutic method of treating the hair or scalp comprising the step of applying a composition as claimed in any of claims 1 to 12 to the hair or scalp.
  14. A non-therapeutic method of delivering oil control sensory comprising the step of applying the hair care composition as claimed in any of claims 1 to 12 onto hair or scalp surfaces of an individual followed by rinsing the surfaces with water.
  15. Non-therapeutic use of a composition as claimed in any of claims 1 to 12 for delivering oil control sensory on hair or scalp.

Description

Field of the Invention This invention relates to hair care compositions, more particularly to hair care compositions comprising a cationic cellulose and a small sized silicone compound. The present invention also relates to a method of delivering oil control sensory during topical application to the hair or scalp. Background of the Invention Hair care compositions are formulated for specific purposes, such as cleansing or conditioning benefits or a combination of the two. Preferred hair care composition will provide more benefits than simple cleansing and conditioning. Such compositions typically comprise one or more cleansing surfactants which generally aid in cleaning the hair and the scalp free of undesirable soil, particles and fatty matter. Scalp hair becomes soiled due to its contact with the surrounding environment and from sebum secreted from the hair follicles. The build- up of sebum and environmental soiling can cause the hair to have a dirty or greasy feel, and an unattractive appearance. In order to ameliorate these effects, it is necessary to shampoo the hair with regularity. Sebum is naturally present on scalp but is often seen as a negative indicator of beauty and health through association with greasy hair or even a suggested association with more serious conditions such as seborrheic dermatitis. Dandruff control is an important aspect of hair cleansing and care. Anti-dandruff benefit has been provided through hair care compositions including shampoos and hair conditioners. Dandruff is an issue that affects many people globally. The condition is manifested by the shedding of clumps of dead skin cells from the scalp. These are white in colour and provide an aesthetically displeasing appearance. A factor that contributes to dandruff is certain members of the Malassezia yeasts. To combat these, anti-dandruff products have included certain anti-dandruff agents which have anti-fungal activity. These anti-dandruff agents remove (or at least reduce the level of) the Malassezia from the scalp and provide moderately effective treatment of the dandruff condition. Such a product performs as a hair cleansing shampoo or as a hair conditioner while mitigating the causes of dandruff. US6706258 B1 (Unilever) discloses a shampoo comprising sodium lauryl ether sulphate 2EO (8.0%), Jaguar C13S (0.3%) and silicone emulsion (2.5%) and silicone microemulsion (6%). However, the silicone emulsion is introduced as BY22-048 from Toray Silicone Co, emulsion (60% a.i.) of dimethicone (silicone viscosity 1 million cst, average silicone particle size 0.5 micron=500nm), and the silicone microemulsion is introduced as DC2-1870 from Dow Coming Ltd., a microemulsion (25% a.i.) of dimethiconol (silicone viscosity 60000 million cst, average silicone particle size 0.04 micron=40nm) in anionic/nonionic surfactant. It does not disclose the silicone compound having mean particle size from 150 to 450nm. EP0674898 A2 (Unilever) discloses a shampoo comprising from 2 to 35% surfactant, from 0.01 to 10% of a microemulsion of particles of a high viscosity silicone having a particle size of <0.15microns and 0.01 to 10% of a cationic deposition polymer. The present inventors focused their attention on the above-mentioned problems. There remains a need to improve the oil control sensory, especially for the sensory experience of using antidandruff products. Summary of the Invention The inventors of the present invention surprisingly found that inclusion of a combination of a cationic cellulose and a small sized silicone with specific weight ratio in a hair care composition, preferably an anti-dandruff shampoo composition, can deliver desirable sensory which is oil control on hair or scalp, preferably reducing greasiness. In a first aspect, the present invention is directed to a hair care composition comprising: i) a cleansing surfactant comprising an anionic surfactant;ii) a cationic cellulose; andiii) a silicone having mean particle size from 150 to 450nm; wherein the weight ratio of the amount of said silicone compound to the amount of said cationic cellulose is from 4.3:1 to 10:1; wherein the mean particle size of the silicone compound is measured by means of a laser light scattering technique. In a second aspect, present invention is directed to a non-therapeutic method of treating the hair or scalp comprising the step of applying a composition of the first aspect onto the scalp or hair. In a third aspect, the present invention is directed to a non-therapeutic method of delivering oil control sensory comprising the step of applying the hair care composition of the first aspect onto hair or scalp surfaces of an individual followed by rinsing the surfaces with water. In a fourth aspect, the present invention is directed to non-therapeutic use of a composition of the first aspect for delivering oil control sensory on hair or scalp. All other aspects of the present invention will more readily become apparent upon considering the detailed de