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CN-122028892-A - Composition for conditioning hair

CN122028892ACN 122028892 ACN122028892 ACN 122028892ACN-122028892-A

Abstract

The present invention relates to a composition for conditioning hair comprising a) spherical particles of at least one lipophilic modified silica, b) at least one superabsorbent polymer selected from starches grafted with acrylic polymers, and c) at least one hair conditioning agent. It also relates to a cosmetic method for conditioning hair comprising applying said composition to hair.

Inventors

  • CHEN XIAO
  • WANG XIUXIA

Assignees

  • 莱雅公司

Dates

Publication Date
20260512
Application Date
20231025

Claims (15)

  1. 1. A composition for conditioning hair comprising: a) Spherical particles of at least one lipophilic modified silica; b) At least one superabsorbent polymer selected from starches grafted with acrylic polymers, and C) At least one hair conditioning agent.
  2. 2. The composition according to claim 1, wherein the lipophilically modified silica is selected from the group consisting of silica treated with silicone compounds, preferably selected from the group consisting of silica silylates, silica dimethyl silylates, and mixtures thereof.
  3. 3. The composition according to claim 1 or 2, wherein the spherical particles of the lipophilic modified silica are present in an amount ranging from 0.01 to 5 wt%, preferably ranging from 0.3 to 2.5 wt%, more preferably ranging from 0.5 to 1.5 wt%, relative to the total weight of the composition.
  4. 4. A composition according to any one of claims 1 to 3, wherein the superabsorbent polymer is selected from starches grafted with acrylic homo-or copolymers, in particular starches grafted with sodium polyacrylate.
  5. 5. The composition according to any one of claims 1-4, wherein the superabsorbent polymer is present in an amount ranging from 0.01 wt.% to 5 wt.%, preferably ranging from 0.1 wt.% to 3 wt.%, more preferably ranging from 0.1 wt.% to 1 wt.%, most preferably ranging from 0.2 wt.% to 0.8 wt.%, relative to the total weight of the composition.
  6. 6. A composition according to any of claims 1 to 5 wherein the hair conditioning agent is selected from nonionic conditioning polymers, cationic conditioning polymers, and mixtures thereof, preferably from homopolymers and copolymers derived from acrylates or amides or methacrylates or amides.
  7. 7. A composition according to any one of claims 1 to 5 wherein the hair conditioning agent is selected from: 1) Acrylamide and methacryloyloxyethyl a copolymer of trimethylammonium methylsulfate, 2) Vinyl pyrrolidone and dimethylamino a copolymer of propyl methacrylamide, the copolymer being prepared, 3) Vinyl pyrrolidone and propylene acid dialkylaminoalkyl esters or a copolymer of dialkylaminoalkyl methacrylate, 4) Vinyl pyrrolidone dimethylaminopropyl methylpropene amide and methacryloyl copolymers of aminopropyl lauryl dimethyl ammonium chloride, 5) Copolymers of acrylic acid, acrylamide and methacrylamidopropyl trimethylammonium chloride, 6) Dimethylaminopropyl acrylate (DMAPA), copolymers of acrylic acid and acrylamide nitrogen with diethyl sulfate, 7) Copolymers of acrylamide, acrylamide propyltrimethylammonium chloride, 2-amidopropyl acrylamide sulfonate and dimethylaminopropyl acrylate (DMAPA), 8) Copolymers of acrylic acid, methyl acrylate and methacrylamidopropyl trimethylammonium chloride, 9) Copolymer of methacryloylethyl betaine, 2-hydroxyethyl methacrylate and methacryloylethyl trimethylammonium chloride, and 10 Copolymers of diallyldimethylammonium chloride with acrylamide, and mixtures thereof.
  8. 8. The composition according to any one of claims 1-7, wherein the hair conditioning agent is present in an amount ranging from 0.01 wt% to 5 wt%, preferably ranging from 0.05 wt% to 3 wt%, more preferably ranging from 0.1 wt% to 1 wt%, most preferably ranging from 0.1 wt% to 0.8 wt%, relative to the total weight of the composition.
  9. 9. The composition according to any one of claims 1-8 wherein the weight ratio of the superabsorbent polymer to the hair conditioning agent is from 1:8 to 4:1.
  10. 10. The composition according to claim 9, further comprising a continuous aqueous phase.
  11. 11. The composition according to claim 10, wherein the aqueous phase is present in an amount ranging from 50% to 99% by weight, preferably from 70% to 99% by weight, relative to the total weight of the composition.
  12. 12. The composition according to claim 10 or 11, wherein the aqueous phase comprises water, preferably present in an amount ranging from 50% to 99% by weight, preferably from 60% to 99% by weight, relative to the total weight of the composition.
  13. 13. The composition according to any one of claims 10-12, wherein the continuous aqueous phase comprises one or more water miscible organic solvents, preferably selected from monohydric alcohols having 2 to 6 carbon atoms, polyhydric alcohols having 2 to 20 carbon atoms, glycol ethers having 3 to 16 carbon atoms, and mixtures thereof, more preferably selected from ethanol, glycerol, and mixtures thereof, in an amount ranging from 0.1% to 50% by weight, preferably from 1% to 45% by weight, more preferably from 5% to 40% by weight, even more preferably from 10% to 40% by weight, relative to the total weight of the composition.
  14. 14. The composition according to claim 1, comprising, relative to the total weight of the composition: a) 0.5 to 1.5 weight percent spherical particles of silica silylate; b) 0.2 to 0.8% by weight of starch grafted with sodium polyacrylate, and C) From 0.1% to 0.8% by weight of a hair conditioning agent selected from the group consisting of vinyl pyrrolidone/dimethylaminoethyl methacrylate copolymers quaternized with diethyl sulfate, polymeric quaternary ammonium salts composed of vinyl pyrrolidone and dimethylaminopropyl methacrylamide monomers, and mixtures thereof.
  15. 15. A cosmetic method for conditioning hair, comprising the application to the hair of a composition as defined in any one of claims 1 to 14.

Description

Composition for conditioning hair Technical Field The present invention relates to compositions for conditioning hair. The invention also relates to a cosmetic method for conditioning hair. Background In some cases, such as under sun exposure, keratin materials, such as skin and scalp, may sweat, resulting in sebum secretion. Excessive sebum secretion from the scalp makes the hair greasy and impairs its appearance, for example its plump (volumized) appearance. In addition, the presence of sebum reduces perceived freshness on the scalp. Oily scalp is the second biggest disturbance in hair and scalp problems, especially in chinese consumers. Many products have been developed to address the problems caused by excess sebum. For example, US5137715A discloses a hair detergent-conditioner composition consisting essentially of (a) from about 1% to about 20% by weight of an anionic cleansing surfactant, (b) from about 0.1% to about 2.5% by weight of a substantially uncrosslinked polymeric amidoamine, and (c) a suitable carrier comprising water, wherein the composition has a pH in the range of from about 2.5 to less than 7. However, many products on the market are ineffective against excess sebum, so that they do not give the hair a full appearance. It is therefore desirable to have a solution that is effective against excess sebum that reduces the problems caused by heavy sebum and gives the hair a fuller appearance. Disclosure of Invention It is therefore an object of the present invention to develop a composition for conditioning hair which reduces the problems caused by heavy sebum and gives the hair a fuller appearance. Thus, according to a first aspect, the present invention provides a composition for conditioning hair comprising: a) Spherical particles of at least one lipophilic modified silica; b) At least one superabsorbent polymer (superabsorbent polymer) selected from starches grafted with acrylic polymers, and C) At least one hair conditioning agent. According to a second aspect, the present invention provides a cosmetic method for conditioning hair comprising applying to hair a composition according to the present invention. The inventors have found that the composition according to the invention is effective against sebum and gives hair volume. Other subjects and features, aspects and advantages of the present invention will become even more apparent upon reading the following detailed description and examples. Detailed Description As used herein, unless otherwise indicated, the limits of the numerical ranges are included in the ranges, in particular in the expression "in the term" and "is used herein. The @ and" @ are in the @ to @ range. As used herein, the term "comprising" shall be construed to encompass all of the specifically mentioned features as well as optional, additional, unspecified features. As used herein, use of the term "comprising" also discloses embodiments in which no feature other than the specifically mentioned feature is present (i.e. "consisting of). Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The definitions set forth herein should be applicable when the definitions of terms in this specification conflict with the meaning commonly understood by those skilled in the art to which this invention pertains. Unless otherwise indicated, all numbers expressing quantities of ingredients and so forth used in the specification and claims are to be understood as being modified by the term "about". Thus, unless indicated to the contrary, the numerical values and parameters set forth herein are approximations that can vary as desired by the desired properties to be obtained. As used herein, the expression "at least one" is equivalent to the expression "one or more". According to a first aspect, the composition of the invention comprises: a) Spherical particles of at least one lipophilic modified silica; b) At least one superabsorbent polymer selected from starches grafted with acrylic polymers, and C) At least one hair conditioning agent. Spherical particles of lipophilically modified silica The composition of the invention comprises spherical particles of at least one lipophilic modified silica. As used herein, "spherical particles" means particles that are spherical or at least approximately spherical in shape, and/or particles that have an aspect ratio of about 0.9 to 1.1, for example about 0.95 to 1.05. For example, one skilled in the art can determine whether the particle shape is spherical based on conventional knowledge. In particular, it is within the routine skill of those skilled in the art to distinguish spherical shapes from other shapes of plates, rods, powders, bars, irregular shapes, etc., and from amorphous analogs, with respect to a given silica. As used herein, "lipophilically modified" silica refers to silica that has undergone lipoph