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EP-4734951-A1 - COMPOSITION FOR CONDITIONING THE HAIR

EP4734951A1EP 4734951 A1EP4734951 A1EP 4734951A1EP-4734951-A1

Abstract

It relates to a composition for conditioning the hair comprising: a) at least one compound selected from water-soluble silicones and derivatives thereof; and b) at least one oil for dissolving the at least one compound a). It also relates to a process for conditioning the hair comprising applying the composition as described above onto the hair.

Inventors

  • KONG, Lingchao
  • XIE, Weishun
  • LIU, WEI

Assignees

  • L'OREAL

Dates

Publication Date
20260506
Application Date
20230630

Claims (15)

  1. A composition for conditioning the hair comprising: a) at least one compound selected from water-soluble silicones and derivatives thereof; and b) at least one oil for dissolving the at least one compound a) .
  2. Composition according to claim 1, wherein the compound a) is selected from water-soluble silicones, preferably selected from polyether-modified silicones.
  3. Composition according to any of claims 1 or 2, the compound a) is selected from silicones represented by formula (1) : R 2 3 SiO (R 2 2 SiO) p (R 2 PESiO) q SiR 2 3 (1) in which: the R 2 radicals, which are identical or different, denote a monovalent hydrocarbon radical chosen from alkyl, aryl and aralkyl radicals having at most 10 carbon atoms; p varies from 0 to 150, preferably from 0 to 100 and more preferably from 0 to 30; q varies from 1 to 12, preferably from 1 to 10 and more preferably from 1 to 8; the polyether group PE has the following formula (2) : -C x H 2x (OC 2 H 4 ) y (OC 3 H 6 ) z OR 3 (2) in which: x varies from 1 to 8 and preferably varies from 2 to 4 and is more preferably equal to 3; y is greater than 0; z is greater than or equal to 0; the values of y and z being such that the total molecular weight of the polyoxyalkylene portion of the polyether group PE varies from 200 to 10000 and more preferably from 350 to 4000; R 3 denotes hydrogen, aC 1 -C 8 alkyl group or a C 2 -C 8 acyl group.
  4. Composition according to any of claims 1-3, wherein the compound a)is selected from PEG-10 methyl ether dimethicone, PEG-11 methyl ether dimethicone, PEG-32 methyl ether dimethicone, PEG/PPG-18/18 dimethicone, PEG/PPG-19/19 dimethicone, PEG/PPG-20/20 dimethicone, PEG/PPG-20/22 butyl ether dimethicone, PEG/PPG-30/10 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, and a mixture thereof.
  5. Composition according to any of claims 1-4, wherein the compound a) is present in an amount ranging from 0.01 wt. %to 10 wt. %, preferably from 0.02 wt. %to 5 wt. %, more preferably from 0.02 wt. %to 3 wt. %, most preferably from 0.03 wt. %to 1 wt. %, relative to the total weight of the composition.
  6. Composition according to any of claims 1-5, wherein the oil is selected from volatile hydrocarbon-based oils and nonvolatile oils, such as silicone oil and ester oils, preferably the oil is selected from alkanes; dimethicones; dimethiconols; alkyl methicones with the alkyl comprising 4-10 carbon atoms, and mixtures thereof.
  7. Composition according to any of claims 1-6, wherein the oil is selected from branched alkanes and alkyl methicones with the alkyl comprising 4-10 carbon atoms, preferably selected from branched C8-C11 alkane, dimethicones, alkyl methicones with the alkyl comprising 6-10 carbon atoms and mixtures thereof, more preferably selected from isododecane, dimethicones, caprylyl methicone and mixtures thereof.
  8. Composition according to any of claims 1-7, wherein the oil is present in an amount ranging from 0.05 wt. %to 99 wt. %, preferably from 30 wt. %to 90 wt. %, more from 40 wt. %to 85 wt. %, most preferably from 50 wt. %to 80 wt. %, relative to the total weight of the composition.
  9. Composition according to any of claims 1-8, wherein the composition further comprises an aqueous phase in an amount ranging from 10 wt. %to 50 wt. %, more preferably from 20 wt. %to 45 wt. %, relative to the total weight of the composition.
  10. Composition according to any of claims 1-9, wherein the composition further comprises at least one non-carboxylic anionic thickener, preferably selected from associative copolymers of AMPS and of at least one ethylenically unsaturated hydrophobic monomer.
  11. Composition according to claim 10, wherein the non-carboxylic anionic thickener is selected from acrylamide/sodium acryloyl dimethyl taurate copolymer, hydroxyethyl acrylate/sodium acryloyl dimethyl taurate copolymer, sodium acrylate/sodium acryloyl dimethyl taurate copolymer, and mixtures thereof.
  12. Composition according to claim 10 or 11, wherein the non-carboxylic anionic thickener is present in an amount ranging from 0.01 wt. %to 5 wt. %, preferably from 0.05 wt. %to 2.5 wt. %, more preferably from 0.1 wt. %to 1 wt. %, relative to the total weight of the composition.
  13. Composition according to claim 1, comprising, relative to the total weight of the composition: a)f rom 0.03 wt. %to 1 wt. %of at least one compound selected from PEG-10 methyl ether dimethicone, PEG-11 methyl ether dimethicone, PEG-32 methyl ether dimethicone, PEG/PPG-18/18 dimethicone, PEG/PPG-19/19 dimethicone, PEG/PPG-20/20 dimethicone, PEG/PPG-20/22 butyl ether dimethicone, PEG/PPG-30/10 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, and a mixture thereof; and b) from 50 wt. %to 99 wt. %of at least one oil selected from alkanes; dimethicones; dimethiconols; alkyl methicones with the alkyl comprising 4-10 carbon atoms, and mixtures thereof.
  14. Composition according to any of claims 1-13, which is a leave-on product.
  15. A process for conditioning the hair comprising applying a composition as defined in any of claims 1-14 onto the hair.

Description

COMPOSITION FOR CONDITIONING THE HAIR TECHNICAL FIELD The present invention relates to a cosmetic composition. In particular, the present invention relates to a composition for conditioning the hair. The present invention also relates to a process for conditioning the hair. BACKGROUND ART The hair is generally damaged and weakened by the action of external atmospheric agents such as light, weather, and/or the action of mechanical or chemical treatments such as brushing, combing, dyeing, bleaching, permanent and/or straightening. There are many products developed for conditioning the hair. Hair oils and leave on cream are the major products in hair leave on category, while hair oils are the biggest leave on products. Hair leave on creams were favored by some consumers due to their lightness feel but the cosmetic effect is not as good as hair oil. Thus, there is a need for a leave on product which can deliver good cosmetic hair effect such as smoothness. SUMMARY OF THE INVENTION An object of the present invention is thus to develop a leave on product for conditioning the hair, which can deliver good cosmetic hair effect such as smoothness. Another object of the present invention is to provide a process for conditioning the hair. Thus, according to a first aspect, the present invention provides a composition for conditioning the hair comprising: a) at least one compound selected from water-soluble silicones and derivatives thereof; and b) at least one oil for dissolving the at least one compound a) . The inventors have now found that the composition of the present invention can deliver good smoothness on hair. According to a second aspect, the present invention provides a process for conditioning the hair comprising applying the composition as described above onto the hair. Other subjects and characteristics, aspects and advantages of the present invention will emerge even more clearly on reading the detailed description and the examples that follow. DETAILD DESCRIPTION OF THE INVENTION As used herein, unless otherwise indicated, the limits of a range of values are included within this range, in particular in the expressions "between…and…" and "from…to…" . As used herein, the term "comprising" is to be interpreted as encompassing all specifically mentioned features as well optional, additional, unspecified ones. As used herein, the use of the term “comprising” also discloses the embodiment wherein no features other than the specifically mentioned features are present (i.e. “consisting of” ) . Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the field the present invention belongs to. When the definition of a term in the present description conflicts with the meaning as commonly understood by those skilled in the field the present invention belongs to, the definition described herein shall apply. Unless otherwise specified, all numerical values expressing amount of ingredients and the like used in the description and claims are to be understood as being modified by the term “about” . Accordingly, unless indicated to the contrary, the numerical values and parameters described herein are approximate values which are capable of being changed according to the desired performance obtained as required. As used herein, the expression "at least one" used in the present description is equivalent to the expression "one or more" . According to the first aspect, the composition of the present invention comprises: a) at least one compound selected from water-soluble silicones and derivatives thereof; and b) at least one oil for dissolving the at least one compound a) . Compounds selected from water-soluble silicones and derivatives thereof According to the first aspect, the composition of the present invention comprises at least one compound selected from water-soluble silicones and derivatives thereof. In one embodiment, the (a) compound is selected from water-soluble silicones. The water-soluble silicones have a solubility in water, measured at 25℃, of at least 0.5%by weight. If the final appearance of water in which a silicone in question is mixed to have a certain concentration is transparent or clear, the silicone is determined to have a solubility of that concentration. Thus, the water-soluble silicone as the (a) compound can be solubilized in water such that the concentration of the water-soluble silicone in water is 0.5%by weight or more. The water-soluble silicones may be chosen from polysiloxanes comprising at least one terminal or pendant monovalent polyoxyalkylene group, which may be categorized as polyoxyalkylene-modified silicones or polyether-modified silicones. The polysiloxanes may be polydimethylsiloxane. The polyoxyalkylene-modified silicones or polyether-modified silicones may be represented by formula (1) : R2 3SiO (R2 2SiO) p (R2PESiO) qSiR2 3 (1) in which: the R2 radicals, which are identical or different, denote