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EP-4734935-A1 - COMPOSITION FOR CONDITIONING THE HAIR

EP4734935A1EP 4734935 A1EP4734935 A1EP 4734935A1EP-4734935-A1

Abstract

Provided herein is an oil composition for conditioning the hair comprising: a) at least one unsaturated fatty alcohol comprising a C12-C20 carbon chain; b) at least one volatile alkane; and c) at least one fatty acid ester oil, wherein the composition comprises no silicone. Provided herein is a process for conditioning the hair comprising applying the composition as described above onto the hair.

Inventors

  • TANG, Jingting
  • KONG, Lingchao

Assignees

  • L'OREAL

Dates

Publication Date
20260506
Application Date
20230630

Claims (15)

  1. An oil composition for conditioning the hair comprising: a) at least one unsaturated fatty alcohol comprising a C12-C20 carbon chain; b) at least one volatile alkane; and c) at least one fatty acid ester oil, wherein the composition comprises no silicone.
  2. Composition according to claim 1, wherein the unsaturated fatty alcohol is selected from unsaturated fatty monoalcohol comprising a C12-C20 carbon chain, preferably from linear unsaturated fatty monoalcohol comprising a C14-C20 carbon chain, more preferably, the unsaturated fatty alcohol is oleyl alcohol.
  3. Composition according to claim 1 or 2, wherein the unsaturated fatty alcohol is present in an amount ranging from 1 wt. %to 20 wt. %, preferably from 1.5 wt. %to 15 wt. %, more preferably from 2 wt. %to 10 wt. %, relative to the total weight of the composition.
  4. Composition according to any of claims 1-3, wherein the volatile alkane is selected from linear C 7 -C 14 alkanes, branched C 8 -C 16 alkanes and mixtures thereof.
  5. Composition according to any of claims 1-4, wherein the volatile alkane is present in an amount ranging from 1 wt. %to 90 wt. %, preferably from 10 wt. %to 80 wt. %, more preferably from 20 wt. %to 80 wt. %, relative to the total weight of the composition.
  6. Composition according to any of claims 1-5, wherein the fatty acid ester oil is selected from liquid monoesters of saturated or unsaturated, branched C 3 -C 22 aliphatic monoacids and of saturated or unsaturated, branched C 2 -C 20 aliphatic monoalcohols, preferably, the fatty acid ester oil is selectedd from liquid monoesters of saturated, branched C 6 -C 20 aliphatic monoacids and of saturated, branched C 2 -C 6 aliphatic monoalcohols.
  7. Composition according to any of claims 1-6, wherein the fatty acid ester oil is selected from esters having the following formula: R 1 -C (=O) -O-R 2 wherein R 1 represents a branched alkyl radical of 3 to 22 carbon atoms, preferably of 6 to 20 carbon atoms, and R 2 represents a branched alkyl radical of 3 to 20 carbon atoms, preferably of 2 to 6 carbon atoms, preferably, the total number of carbon atoms of R 1 +R 2 may be 9 or more, preferably 12 or more, more preferably 16 or more, and most preferably 20 or more.
  8. Composition according to any of claims 1-7, wherein the fatty acid ester oil is selected fromisohexyl laurate, isopropyl myristate, isopropyl palmitate, isopropy stearate, isopropyl isostearate, and mixtures thereof, preferably the fatty acid ester oil is isopropyl isostearate.
  9. Composition according to any of claims 1-8, wherein the fatty acid ester oil is present in an amount ranging from 1 wt. %to 20 wt. %, preferably from 2 wt. %to 15 wt. %, more preferably from 2 wt. %to 10 wt. %, relative to the total weight of the composition.
  10. Composition according to any of claims 1-9, wherein the composition further comprises an oil soluble plant extract.
  11. Composition according to claim 10, wherein the oil soluble plant extract is a compound of ceramide type.
  12. Composition according to claim 11, wherein the compound of ceramide type is present in an amount ranging from 0.01 wt. %to 2 wt. %, preferably from 0.01 wt. %to 1 wt. %, more preferably from 0.05 wt. %to 0.5 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) from 2 wt. %to 10 wt%of oleyl alcohol; b) from 20 wt. %to 80 wt. %of at least one volatile alkane selected from selected from linear C7-C14 alkanes, branched C8-C16 alkanes, and mixtures thereof; and c) from 2 wt. %to 10 wt. %of at least one fatty acid ester oil selected from isohexyl laurate, isopropyl myristate, isopropyl palmitate, isopropy stearate, isopropyl isostearate, and mixtures thereof; and d) optionally, from 0.05 wt. %to 0.5 wt. %of at least one compound of ceramide type, wherein the composition comprises no silicone.
  14. Composition according to any of claims 1-10, 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 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. Current hair oil market is dominated by oil contains silicones. However, many consumers favor silicone-free hair oil products, thus silicone-free oil products are growing worldwide. Therefore, it is desired to develop Si-free oil products for conditioning the hair, which can provide similar conditioning effect with silicone-based oil products and do not deliver greasy sensory. It is also desired that the products are stable. In addition, the formulation of environmentally-friendly cosmetic products, which are designed and developed considering environmental issues, is becoming a major goal in an effort to meet global challenges. It is therefore essential to propose more sustainable compositions to address these environmental concerns. In this context, it is important to develop new cosmetic compositions with a better carbon footprint, particularly by promoting the use of renewable raw materials and/or materials with a good index of naturalness and/or materials of natural origin and, more particularly, materials of plant origin while reducing the use of compounds of petrochemical origin. SUMMARY OF THE INVENTION An object of the present invention is thus to develop stable Si-free oil products for conditioning the hair, which can provide similar or better conditioning effect with silicone-based oil products and do not deliver greasy sensory while being environmentally-friendly. 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 an oil composition for conditioning the hair comprising: a)at least one unsaturated fatty alcohol comprising a C12-C20 carbon chain; b)at least one volatile alkane; and c)at least one fatty acid ester oil, wherein the composition comprises no silicone. 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. The inventors have now found that with the combination of at least one unsaturated fatty alcohol comprising a C12-C20 carbon chain, at least one volatile alkane, and at least one fatty acid ester, the composition of the present invention is stable and can provide the hair conditioning effect and lightness sensory. Here the term of lightness sensory means not greasy sensory. 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 oil composition of the present invention comprises: a)at least one unsaturated fatty alcohol comprising a C12-C20 carbon chain; b)at least one volatile alkane; and c)at least one fatty acid ester oil, wherein the composition comprises no silicone. Unsaturated fatty alcohols The composition of the present invention comprises at least one unsaturated fatty alcohol comprising a C12-C20 carbon chain. Preferably, the unsatur