Silicone-free composition for hair conditioning

Abstract

A silicone-free composition for conditioning hair comprises a) at least one volatile alkane, b) at least one fatty substance selected from unsaturated aliphatic compounds containing C12-C20 carbon chains, fatty acid ester oils, and mixtures thereof, and c) at least one thickener selected from poly(ester-amide) polymers, styrene and olefin copolymers, and mixtures thereof, with esters as terminal groups. A method for conditioning hair comprises the step of applying this composition to the hair.

Description

Technical Field

[0001] The present invention relates to a composition for conditioning hair. In particular, the present invention relates to a silicone-free composition for conditioning hair. The present invention also relates to a method for conditioning hair.

Background Art

[0002] Hair is generally damaged and embrittled by the action of external factors in the outside air such as light and weather, and / or by the action of mechanical or chemical treatments such as brushing, combing, dyeing, bleaching, permanent waving, and / or straightening.

[0003] There are many products developed for conditioning hair.

[0004] In the current hair oil market, oils containing silicone are mainstream. However, many consumers prefer silicone-free hair oil products, and thus silicone-free products are growing globally.

[0005] Therefore, it is desired to develop a Si-free oil product for conditioning hair that can provide a conditioning effect similar to that of silicone-based oil products and does not bring a sticky feeling.

[0006] It is also desired that the Si-free oil product is stable and can be conveniently applied by consumers.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Patent Document 2

Patent Document 3

Non-Patent Literature

[0008]

Non-Patent Literature 1

Non-Patent Literature 2

Summary of the Invention

Problems to be Solved by the Invention

[0009] Therefore, an object of the present invention is to develop a silicone-free oil product for conditioning hair that is stable, can provide a conditioning effect similar to that of silicone-based oil products, and does not cause a sticky feeling.

[0010] Another object of the present invention is to provide a method for conditioning hair.

Means for Solving the Problems

[0011] Therefore, according to a first aspect, the present invention is a silicone-free composition for conditioning hair, comprising: a) at least one volatile alkane, b) at least one fatty substance selected from unsaturated aliphatic compounds containing a C12 - C20 carbon chain, fatty acid ester oils, and mixtures thereof, and c) At least one thickener selected from poly(ester-amide) polymers with esters as terminal groups, preferably containing one or two ethylenically unsaturated polymers and / or preferably containing 2 to 5 carbon atoms, optionally hydrogenated, block copolymers of styrene and olefins, particularly diblock or triblock copolymers, and mixtures thereof. The present invention provides a composition containing [a certain substance].

[0012] According to a second aspect, the present invention provides a method for conditioning hair, comprising the step of applying the above composition to the hair. [Effects of the Invention]

[0013] Herein, the inventors have found that by combining at least one volatile alkane, at least one fatty substance as defined above, and at least one thickening agent as defined above, the composition of the present invention can provide a conditioning effect similar to that of a silicone-based oil composition, for example, a light and silky feel.

[0014] Other subject matter, features, aspects, and advantages of the present invention will become clearer by reading the following embodiments and examples for carrying out the invention. [Modes for carrying out the invention]

[0015] Where used herein, unless otherwise indicated, the limits of a range of values ​​are included within that range, particularly in expressions such as "between... and..." and "...~...".

[0016] As used herein, the term “comprising” should be interpreted as encompassing all specifically mentioned features, plus any optional, additional, unspecified features.

[0017] As used herein, the use of the term “comprising” also discloses embodiments in which there are no features other than those specifically mentioned (i.e., “consisting of”).

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art in which this invention pertains. In the event of any conflict between a definition of a term in this description and a meaning commonly understood by those skilled in the art in which this invention pertains, the definitions set forth herein shall prevail.

[0019] Unless otherwise specified, all numerical values ​​used in this description and in the claims to express quantities of ingredients, etc., should be understood to be modified by the term "approximately." Therefore, unless otherwise indicated, the numerical values ​​and parameters described herein are approximate and can be modified as needed to achieve the desired performance.

[0020] Where used herein, the expression “at least one” is equivalent to the expression “one or more.”

[0021] As used herein, the expression “silicone-free composition” means that silicone is not intentionally added to the composition, in particular that the composition contains no more than 2% by mass of silicone relative to the total mass of the composition, and more specifically, that the composition is silicone-free.

[0022] According to the first aspect, the composition of the present invention is a) at least one volatile alkane, b) At least one fatty substance selected from unsaturated aliphatic compounds containing C12-C20 carbon chains, fatty acid ester oils, and mixtures thereof, and c) At least one thickener selected from poly(ester-amide) polymers with esters as terminal groups, preferably containing one or two ethylenically unsaturated polymers and / or preferably containing 2 to 5 carbon atoms, optionally hydrogenated, block copolymers of styrene and olefins, particularly diblock or triblock copolymers, and mixtures thereof. Includes.

[0023] Volatile Alkanes According to a first aspect, the composition of the present invention comprises at least one volatile alkane.

[0024] The term "alkane" is intended to mean any compound containing a linear or branched saturated hydrocarbon chain composed solely of carbon and hydrogen atoms.

[0025] The term "volatile alkane" as suitable for use in this invention refers to a substance that can evaporate in less than one hour upon contact with skin at room temperature (25°C) and atmospheric pressure (760 mmHg, i.e., 101325 Pa), is liquid at room temperature, and is particularly effective at 0.01 to 15 mg / cm³ at room temperature (25°C) and atmospheric pressure (760 mmHg). 2 This is intended to refer to alkanes that have an evaporation rate within the range of / min.

[0026] Among the volatile alkanes according to the present invention, the following can be listed: Volatile linear alkanes, Volatile branched alkanes, and mixtures thereof.

[0027] a) Volatile linear alkanes The volatile linear alkanes suitable for use in the present invention are preferably selected from volatile linear alkanes containing 7 to 14 carbon atoms.

[0028] Examples of alkanes suitable for the present invention include those described in the patent applications WO2007 / 068371 or WO2008 / 155059 by Cognis (mixtures of distinct alkanes, differing by at least one carbon). These alkanes are obtained from aliphatic alcohols, which in turn are obtained from copra oil or palm oil.

[0029] Examples of linear alkanes suitable for use in the present invention include n-heptane (C7), n-octane (C8), n-nonane (C9), n-decane (C 10 ), n-undecane (C 11 ), n-dodecane (C 12 ), n-tridecane (C 13 ), and n-tetradecane (C 14 ), and mixtures thereof.

[0030] According to a preferred embodiment, a mixture of n-undecane (C 11 ) and n-tridecane (C 13 ) obtained in Examples 1 and 2 of the patent application WO2008 / 155059 by Cognis can be mentioned.

[0031] n-dodecane (C 12 ) and n-tetradecane (C 14 ), sold by Sasol under the reference names Parafol 12 97 and Parafol 14 97 respectively, and mixtures thereof can also be mentioned.

[0032] b) Volatile branched alkanes Among the branched volatile alkanes, branched C8-C 16 alkanes, such as C8-C 16 isoalkanes (also known as isoparaffins), such as isododecane (also known as 2,2,4,4,6-pentamethylheptane), isodecane, and isohexadecane, and mixtures thereof can be mentioned. Isododecane and isohexadecane are preferably used.

[0033] Preferably, the composition of the present invention is linear C7-C 14 Alkanes, branched C8~C 16 The material comprises alkanes and at least one volatile alkane selected from mixtures thereof.

[0034] More preferably, the composition of the present invention comprises at least one volatile alkane selected from n-undecane (C11), n-tridecane (C13), isododecane, isohexadecane, and mixtures thereof.

[0035] More preferably, the composition of the present invention comprises a combination of n-undecane (C11), n-tridecane (C13), isododecane, and isohexadecane.

[0036] Volatile alkanes can provide excellent spreadability on hair without leaving a sticky residue.

[0037] Advantageously, the volatile alkane is present in the composition of the present invention in an amount ranging from 1% to 90% by mass, preferably 10% to 80% by mass, and more preferably 20% to 80% by mass, based on the total mass of the composition.

[0038] Unsaturated aliphatic compounds containing C12-C20 carbon chains, and fatty acid ester oils According to a first aspect, the composition of the present invention comprises at least one fatty substance selected from unsaturated aliphatic compounds containing C12-C20 carbon chains, fatty acid ester oils, and mixtures thereof.

[0039] unsaturated aliphatic compounds Preferably, the unsaturated aliphatic compound is selected from unsaturated aliphatic alcohols containing a C12-C20 carbon chain.

[0040] More preferably, the unsaturated aliphatic compound is selected from unsaturated aliphatic monoalcohols containing a C12-C20 carbon chain.

[0041] More preferably, the unsaturated aliphatic compound is selected from linear unsaturated aliphatic monoalcohols containing a C14-C20 carbon chain.

[0042] In some embodiments, the unsaturated aliphatic compound is a compound having an R-OH structure (wherein R represents a linear alkenyl group containing 12 to 20 carbon atoms, preferably 14 to 20 carbon atoms).

[0043] Most preferably, the unsaturated aliphatic compound is an oleyl alcohol.

[0044] Examples of commercially available linear unsaturated aliphatic monoalcohols containing C12-C20 carbon chains include oleyl alcohol, sold by BASF under the name HD OCENOL 80 / 85 V / MB, or by CRODA under the name CRODACOL A 10.

[0045] The presence of unsaturated aliphatic compounds allows for conditioning effects without a sticky feel. In particular, unsaturated aliphatic compounds have a high affinity for damaged hair fibers, especially those in the wet stage, and their long chains can provide nourishment and a soft feel.

[0046] Fatty acid ester oil Advantageously, fatty acid ester oils are saturated or unsaturated branched C3-C3 fatty acids. 26 Aliphatic monoacid or polyacid and saturated or unsaturated branched C3-C3 atoms. 26 Selected from liquid monoesters of aliphatic monoalcohols or polyalcohols.

[0047] In the context of this invention, the term "oil" means a fatty substance that is in liquid form at room temperature and atmospheric pressure.

[0048] The fatty acid ester oil of the present invention is saturated or unsaturated branched C3-C 26 Aliphatic monoacids and saturated or unsaturated branched C3-C3 acids. 26It is a liquid monoester with an aliphatic monoalcohol, and the total number of carbon atoms in the ester is preferably 10 or more, and preferably 30 or less.

[0049] Preferably, the fatty acid ester oil is saturated or unsaturated branched C3-C3. 22 Aliphatic monoacids and saturated or unsaturated branched C3-C3 acids. 20 It is a liquid monoester with an aliphatic monoalcohol. More preferably, the fatty acid ester oil is a saturated linear C6-C6 compound. 20 It is a liquid monoester of an aliphatic monoacid and a saturated branched C2-C6 aliphatic monoalcohol.

[0050] A preferred ester is given by the following formula: R1-C(=O)-O-R2 [In the formula, R1 represents a branched alkyl group having 3 to 22 carbon atoms, preferably 6 to 20 carbon atoms, and R2 represents a branched alkyl group having 3 to 20 carbon atoms, preferably 3 to 6 carbon atoms.] It may have.

[0051] Preferably, the total number of carbon atoms in R1 + R2 may be 9 or more, preferably 12 or more, more preferably 16 or more, and most preferably 20 or more.

[0052] The ester may be, for example, a hexanoic acid ester, a nonanoic acid ester, an isononanoic acid ester, a capric acid ester, a lauric acid ester, a myristic acid ester, a palmitic acid ester, a stearic acid ester, an isostearic acid ester, a behenic acid ester, or a mixture thereof.

[0053] Among monoesters of monoacids and monoalcohols, examples include ethylhexyl palmitate, isopropyl palmitate, isopropyl isostearate, alkyl myristate, for instance, isopropyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, and isononyl isononanoate.

[0054] Examples of preferred fatty acid ester oils include, for example, isohexyl laurate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, isopropyl isostearate, and mixtures thereof.

[0055] The most preferred fatty acid ester is isopropyl isostearate.

[0056] The presence of fatty acid ester oils allows for conditioning effects without leaving a sticky feeling.

[0057] Advantageously, fatty substances selected from unsaturated aliphatic compounds containing C12-C20 carbon chains, fatty acid ester oils, and mixtures thereof are present in the composition of the present invention in an amount ranging from 0.1% to 40% by mass, preferably 1% to 30% by mass, and more preferably 2% to 20% by mass, based on the total mass of the composition.

[0058] For the purposes of the present invention, preferably the composition comprises both an unsaturated aliphatic compound containing a C12-C20 carbon chain and a fatty acid ester oil.

[0059] Advantageously, the composition contains an unsaturated aliphatic compound containing C12-C20 carbon chains in an amount of 0.1% to 20% by mass, preferably 1% to 15% by mass, more preferably 2% to 10% by mass, based on the total mass of the composition, and a fatty acid ester oil in an amount of 1% to 20% by mass, preferably 2% to 15% by mass, more preferably 2% to 10% by mass.

[0060] Thickening agent According to a first aspect, the composition of the present invention comprises at least one thickener selected from poly(ester-amide) polymers having esters as terminal groups, preferably containing one or two ethylenically unsaturated groups and / or preferably containing 2 to 5 carbon atoms, optionally hydrogenated, block copolymers of styrene and olefins, particularly diblock or triblock copolymers, and mixtures thereof.

[0061] For the purposes of the present invention, the term "thickening agent" means a compound that, in its presence, can increase the viscosity of a composition in which it is present by at least 50 cP (centipoise) at 25°C.

[0062] Poly(ester-amide) with ester as the terminal group Poly(ester-amide) (ETPEA) polymers with esters as terminal groups are preferably in the form of resins prepared by reacting diacids, diamines, polyols, and monoalcohols. (i) Polymerized fatty acids account for at least 50 equivalents of the diacid, (ii) Ethylenediamine accounts for at least 50 equivalents of the diamine.

[0063] More preferably, the resin composition is (iii) 10 to 60 equivalents of the total equivalents of hydroxyl and amine derived from diamines, polyols and monoalcohols, derived from monoalcohols, (iv) Up to 50 equivalents of the total hydroxyl and amine equivalents derived from diamines, polyols, and monoalcohols are derived from polyols.

[0064] Poly(ester-amide) (ETPEA) polymers with esters as terminal groups can be prepared by the method described in U.S. Patent No. 6,552,160.

[0065] Diacids are generally organic molecules containing two carboxylic acid groups or equivalent reactive groups. Preferably, diacids are polymerized fatty acids.

[0066] Polymerized fatty acids are typically mixtures containing acid dimers and acid trimers, each of which may be saturated, unsaturated, cyclic, or acyclic. Polymerized fatty acids used in the synthesis of poly(ester-amide) (ETPEA) polymers with esters as terminal groups are preferably acid dimers.

[0067] Polymerized fatty acids are generally long-chain unsaturated fatty acids, such as C 18 Monocarboxylic acids are formed by heating them at a temperature of approximately 200-250°C in the presence of catalyst clay to polymerize fatty acids. The resulting product is generally an acid dimer formed by the dimerization of fatty acids, particularly C 36 Dicarboxylic acids, and acid trimers obtained by the trimerization of carboxylic acids, especially C 54 Contains tricarboxylic acid. Further details regarding the polymerization of fatty acids are provided in U.S. Patent No. 3,157,681 and the book "Naval Stores—Production, Chemistry and Utilization," edited by D.F. Zinkel and J. Russell, Pulp. Chem. Assoc. Inc., 1989, Chapter 23.

[0068] Preferably, polymerized fatty acids contain less than 20% by mass of acid trimers and at least 80% by mass of acid dimers, relative to the total mass of polymerized fatty acids. More specifically, acid dimers constitute essentially the whole of polymerized fatty acids.

[0069] Among the unsaturated fatty acids used to form polymerized fatty acids, oleic acid, linoleic acid, and linolenic acid can be mentioned. Preferably, long-chain fatty acid oil, which is a mixture of long-chain unsaturated acids obtained by wood pulp reduction treatment, is used. Other sources, such as soybeans and rapeseed, can also be used. Polymerized fatty acids that can be used according to the present invention have an acid value of about 180 to 200.

[0070] Polymerized fatty acids may be hydrogenated before being used in the resin formation reaction. Hydrogenation can slightly increase the melting point of the resin, improve its stability against oxidation, and, in the case of slightly colored resins, also improve color stability.

[0071] Among polymerized fatty acids, particularly in commercially available hydrogenated forms, examples include products sold under the Unidyme brand by Arizona Chemical, products sold under the Pripol 1015 brand by Uniqema, and products sold under the Empol 1008 brand by Cognis.

[0072] More specifically, as polymerized fatty acids, C 36 Hydrogenated linoleic acid dimer is used.

[0073] In addition to polymerized fatty acids and reactive equivalents, diacids are given by formula: HOOC-R1-COOH [wherein R1 is C4~C]. 19 Preferably C4~C 12 It may also contain a coniodic acid, more preferably a C4-C8 hydrocarbon compound.

[0074] Carbon atoms may be arranged in a linear, branched, or cyclic manner, and unsaturation may exist between any two adjacent atoms. R1 may be aliphatic or aromatic.

[0075] The diamine reagent has two amine groups and is preferably a primary amine, with the formula: HN(R 2a )--R2--N(R 2a )H[wherein, R 2a This represents hydrogen or an alkyl group, or R2 or another R 2a It is represented by [forming a complex ring together with the base].

[0076] More specifically, ethylenediamine is used as the diamine, i.e., R 2a R2 is hydrogen, and R2 is -CH2-CH2-.

[0077] Diamines other than ethylenediamine are referred to herein as co-diamines. When co-diamines are present, they are used in small amounts relative to ethylenediamine.

[0078] A monoalcohol can be represented by the formula R3-OH [wherein R3 is preferably a hydrocarbon group having at least 10 carbon atoms]. Therefore, a monoalcohol can be described as a monohydric alcohol.

[0079] According to a particular form, R3 is C 10 ~C 30 Hydrocarbon groups, preferably C 12 ~C 24 Hydrocarbon groups, more specifically, C 18 It is a hydrocarbon group. For the purposes of the present invention, "C 10 ~C 30 The term "hydrocarbon group" is intended to mean any group having at least 10 carbon atoms but up to 30. The carbon atoms may be arranged in a linear, branched, or cyclic manner, and the hydrocarbon group may be saturated or unsaturated.

[0080] In one particularly preferred embodiment, R3 is linear, the hydroxyl group is located on the terminal carbon, i.e., the monoalcohol is primary. Among the monoalcohols that can be used to prepare ETPEA resins are 1-dodecanol, 1-tetradecanol, 1-hexadecanol (cetyl alcohol), 1-octadecanol (stearyl alcohol), 1-eicosanol (arachidyl alcohol), and 1-docosanol (behenyl alcohol).

[0081] The reactive monoalcohol may contain an alkylene group, that is, an alkyl group having unsaturation between two adjacent carbon atoms.

[0082] Another reactive monoalcohol that can be used in accordance with the present invention is of the formula: HC(R a )(R b )-CH2-OH[wherein, R a and R b These may be the same or different, preferably C6 to C 12It may be a Guerbet alcohol [showing a hydrocarbon group]. Guerbet alcohols are specifically described in the book "Dictionary For Auxiliaries For Pharmacy, Cosmetics And Related Fields," HP Fiedler, 3rd edition, 1989, Cantor Aulendorf.45 Specifically, hexadecyloctadecanol-2, which has 24 carbon atoms, may be used.

[0083] Another type of reactive monoalcohol that can be used in accordance with the present invention is linear alcohol wax. Among the linear alcohol waxes available on the market, one example is the product sold under the Unilin brand by Petrolite Corporation (Tulsa, Okla). These linear alcohol waxes are generally mixtures of linear alcohols having at least 20 carbon atoms, more specifically at least 24 carbon atoms.

[0084] The number-average molecular weight of alcohol mixtures can be characterized using vapor pressure osmotic pressure (VPO) measurement techniques. According to one particular form, a mixture of linear monoalcoholic waxes has a number-average molecular weight of approximately 200 to approximately 800, preferably approximately 300 to approximately 600, as measured by VPO. Pure C22 monohydric linear alcohol has a molecular weight of 326 as measured by VPO.

[0085] According to the present invention, for example, 1-eicosanol (C 20 ), 1-docosanol (C 22 (behenyl alcohol), dotricontanol (C 32 ), tetratriacontanol (C 34 ), pentatricontanol (C 35 ), tetracontanol (C 40 ), Tetraacontanol (C 44 ), dopentacontanol (C 54 ), Tetrahexacontanol (C64 ), dohexaacontanol (C 72 A pure monoalcohol or a mixture of linear monoalcohols such as ) is preferably used.

[0086] More specifically, 1-octadecanol is used, more commonly known as stearyl alcohol.

[0087] The final component required for the preparation of ETPEA resin is a polyol or polyhydric alcohol. The structure of a polyol is R4(OH) n (In the formula, R4 represents an n-valent organic group). For example, R4 is an unhydroxyl-substituted C2-C 20 It may be an organic group. As another example, R4 may be a hydrocarbon group, and n is generally equal to 2, 3, 4, 5, or 6.

[0088] Polyols that can be used in accordance with the present invention include ethylene glycol, propylene glycol, butylene glycol, glycerol, trimethylolpropane, pentaerythritol, neopentyl glycol, tris(hydroxymethyl)methanol, dipentaerythritol, and tripentaerythritol.

[0089] More specifically, neopentyl glycol is used.

[0090] Reagents equivalent to diacids and / or diamines may also be used to prepare ETPEA resin. For example, in the reaction to form ETPEA resin, a diester may be used instead of some or all of the diacid. The term “diester” is intended to mean any product of esterification of a diacid with a molecule containing a hydroxyl functional group. Such diesters are preferably obtained from relatively volatile molecules containing a hydroxyl functional group, so that the volatile molecules can be easily removed from the reaction vessel after the reaction of the monoalcohol and / or diamine with the diester. Lower diesters, in particular the products of esterification or diesterification of the above-mentioned diacids with C1-C4 monoalcohols (i.e., methanol, ethanol, propanol, and butanol), may be used instead of some or all of the diacid in the reaction to form ETPEA resin. Acid halides may also be used instead of some or all of the diacid in the reaction to form ETPEA resin. Similarly, monoalcohols can be esterified with volatile diacids, such as acetic acid, before being used in the reaction to form ETPEA resin. However, such equivalent reagents are not preferred insofar as they introduce reactive groups into the reaction vessel.

[0091] Preferably, the carboxylic acid equivalent should be substantially equivalent to the combined equivalent of the hydroxyl equivalent introduced by the monoalcohol and polyol and the amine equivalent introduced by the diamine. In other words, the acid value and amine value of the resin according to the present invention should each be preferably less than 25, more preferably less than 15, more specifically less than 10, and more specifically less than 5.

[0092] When preparing ETPEA resin using a conjugate acid, the conjugate acid should not constitute more than 50% of the carboxylic acid equivalents in the reaction mixture. In other words, the conjugate acid should constitute 0-50% of the acid equivalents in the reaction mixture, more preferably 0-25%, and even more preferably 0-10%.

[0093] When preparing ETPEA resin using a co-diamine, the co-diamine should not amount to more than 50% of the carboxylic acid equivalents in the reaction mixture. In other words, the co-diamine should amount to 0-50% of the acid equivalents in the reaction mixture, more preferably 0-25%, and even more preferably 0-10%.

[0094] The hydroxyl equivalent derived from the polyol is preferably 50% or less of the total hydroxyl equivalent and amine equivalent introduced by the polyol, monoalcohol, and diamine reagent. According to a particular embodiment of the present invention, the hydroxyl equivalent derived from the polyol may be 40% or less, 30% or less, or 20% or less of the total hydroxyl equivalent and amine equivalent introduced by the polyol, monoalcohol, and diamine reagent.

[0095] The amine equivalent is preferably in the range of 0.3 to 0.75 relative to the total hydroxyl equivalents and amine equivalents introduced by the polyol, monoalcohol, and diamine reagent. According to a particular embodiment of the present invention, the hydroxyl equivalent derived from the polyol is in the range of 0.05 to 0.45 relative to the total hydroxyl equivalents and amine equivalents introduced by the polyol, monoalcohol, and diamine reagent. According to a particular embodiment of the present invention, the hydroxyl equivalent derived from the monoalcohol is in the range of 0.20 to 0.45 relative to the total hydroxyl equivalents and amine equivalents introduced by the polyol, monoalcohol, and diamine reagent.

[0096] Preferably, the poly(ester-amide) polymer with an ester as a terminal group is selected from copolymers of hydrogenated dilinoleic acid, ethylenediamine, C2-C6 glycols, and C10-C22 monoalcohols.

[0097] More specifically, the INCI name polyamide-8 is used, and the copolymer is a poly(ester-amide) polymer with esters as terminal groups, which is a copolymer of hydrogenated dilinoleic acid, ethylenediamine, neopentyl glycol, and stearyl alcohol. This copolymer is particularly marketed by Croda under the trademark name Oleocrapht® LP-20-PA.

[0098] Selectively hydrogenated block copolymers of styrene and olefins Examples of olefins that can be used include, in particular, ethylenic carbide monomers containing one or two ethylenically unsaturated atoms and 2 to 5 carbon atoms, such as ethylene, propylene, butylene, butadiene, and isoprene.

[0099] Block polymer type polymer-based thickeners are preferably hydrogenated to reduce the remaining ethylenically unsaturated material after monomer polymerization.

[0100] In particular, the thickening agent is an optionally hydrogenated copolymer having a styrene block and an ethylene and / or C2-C5, especially C2-C4 alkylene block, especially butylene or propylene.

[0101] In certain embodiments, the thickener is preferably a diblock copolymer having a hydrogenated styrene block and an ethylene / C2-C4 alkylene block, and more specifically, a diblock copolymer having a hydrogenated styrene block and an ethylene / propylene (INCI: styrene / isoprene copolymer) or an ethylene / butylene block. A diblock copolymer having a hydrogenated styrene block and an ethylene / butadiene block is also preferred. Such diblock polymers are commercially available from Kraton Polymers under the name Kraton G1701.

[0102] The thickener may be a triblock copolymer, preferably hydrogenated, and selected from styrene-ethylene / propylene-styrene copolymer, styrene-ethylene / butadiene-styrene copolymer, styrene-isoprene-styrene copolymer, and styrene-butadiene-styrene copolymer. Such triblock polymers are commercially available, in particular, from Kraton Polymers under the names Kraton® G1650, Kraton® G1652, Kraton® D1101, Kraton® D1102, and Kraton® D1160.

[0103] A mixture of styrene-butadiene / ethylene-styrene triblock copolymer and ethylene-propylene-styrene hydride star polymer may be used, such mixtures being found, in particular, in isododecane. Such mixtures are sold, for example, by Penreco under the trademark names Versagel® M5960 and Versagel® M5670.

[0104] Preferably, the thickener is selected from a copolymer of hydrogenated dilinoleic acid, ethylenediamine, C2-C6 glycol, and C10-C22 monoalcohol, preferably a diblock copolymer having hydrogenated styrene blocks and ethylene / C2-C4 alkylene blocks, more specifically, preferably a copolymer having hydrogenated styrene blocks and ethylene / ethylene, or ethylene / propylene, or ethylene / butylene blocks, and mixtures thereof.

[0105] More preferably, the thickener is selected from styrene hydride / isoprene copolymer, styrene hydride / butadiene copolymer, styrene / isoprene copolymer, bis-stearylethylenediamine / neopentyl glycol / hydrogenated dilinoleic acid dimer stearyl copolymer, and mixtures thereof.

[0106] A thickening agent suitable for the present invention has high compatibility with the oil used in the composition of the present invention, so as to provide an appropriate viscosity.

[0107] Advantageously, the thickening agent is present in the composition of the present invention in an amount ranging from 0.1% to 15% by mass, preferably 1% to 10% by mass, and more preferably 2% to 8% by mass, relative to the total mass of the composition.

[0108] Linear C15-C19 alkanes and branched C17-C19 alkanes In some preferred embodiments, the compositions of the present invention further comprise linear C15-C19 alkanes and / or branched C17-C19 alkanes, particularly branched C17-C19 alkanes.

[0109] Advantageously, if present, linear C15-C19 alkanes and / or branched C17-C19 alkanes, particularly branched C17-C19 alkanes, are present in the composition of the present invention in an amount of 2% to 30% by mass, preferably 5% to 25% by mass, and more preferably 10% to 20% by mass, based on the total mass of the composition.

[0110] Beauty active ingredients Optionally, the composition of the present invention may also contain other cosmetic active ingredients for conditioning hair, such as oil-soluble plant extracts.

[0111] If present, the cosmetic active ingredient is advantageously present in an amount ranging from 0.001% to 5% by mass, preferably 0.01% to 2% by mass, and more preferably 0.1% to 1% by mass, relative to the total mass of the composition.

[0112] Adjuvant The composition according to the present invention may also contain an effective amount of other ingredients, such as fragrances.

[0113] Those skilled in the art can select the amount of additional adjuvant so as not to adversely affect the final use of the composition according to the present invention.

[0114] According to a preferred embodiment, the present invention relates to a silicone-free composition for conditioning hair, wherein, with respect to the total mass of the composition, a) 20% to 80% by mass of linear C7-C 14 Alkanes, branched C8~C 16 Alkanes, and at least one volatile alkane selected from mixtures thereof, b) 2% to 10% by mass of oleyl alcohol, and 2% to 10% by mass of at least one fatty acid ester oil selected from ethyl laurate, isohexyl laurate, hexyl laurate, isopropyl myristate, ethyl palmitate, isopropyl palmitate, isopropyl stearate, isopropyl isostearate, and mixtures thereof, and c) At least one thickening agent selected from 2% to 8% by mass of hydrogenated styrene / isoprene copolymer, hydrogenated styrene / butadiene copolymer, styrene / isoprene copolymer, bis-stearylethylenediamine / neopentyl glycol / hydrogenated dilinoleic acid dimer stearyl copolymer, and mixtures thereof. The present invention provides a composition containing [a certain substance].

[0115] Preparation and Use The composition according to the present invention can be prepared by mixing essential components a) to c) and additional components described above.

[0116] The methods and means for mixing the above-mentioned essential and optional components are not limited. Any conventional methods and means can be used to mix the above-mentioned essential and optional components to prepare the compositions according to the present invention.

[0117] The composition according to the present invention does not contain silicone, but can provide similar moisturizing / drying beauty / conditioning effects compared to silicone-based oil compositions.

[0118] The composition according to the present invention can be used as a leave-on or rinse-off type hair care conditioning product.

[0119] According to a second aspect, the present invention provides a method for conditioning hair, comprising the step of applying the above composition to the hair. [Examples]

[0120] The following embodiments are given as illustrative examples of the present invention and are not intended to limit its scope.

[0121] The main raw materials used, their trademarks, and suppliers are listed in Table 1.

[0122] [Table 1]

[0123] (Examples 1-5 and Comparative Examples 1-3 of the present invention) Leave-on oils according to Examples (IE.) 1-5 and Comparative Examples (CE.) 1-3 of the present invention were prepared using the components listed in Table 2 (contents are expressed as the mass percentage of the component relative to the total mass of each leave-on oil unless otherwise indicated).

[0124] [Table 2]

[0125] Polyamide-8* is a bis-stearylethylenediamine / neopentyl glycol / hydrogenated dilinoleic acid dimer stearyl copolymer.

[0126] The compositions of Examples 1 to 5 of the present invention correspond to the compositions according to the present invention.

[0127] The compositions of Comparative Examples 1 and 2 contain dextrin palmitate instead of the thickening agent according to the present invention.

[0128] The composition of Comparative Example 3 contains silicone oil.

[0129] Preparation procedure: Each leave-on oil was prepared as follows. Taking Example 1 of the present invention as an example, - Add oleyl alcohol, isopropyl isostearate, and styrene hydride / isoprene copolymer to a beaker and heat to 80°C while stirring until a homogeneous mixture is obtained. - Add undecane (and) tridecane, and isohexadecane to a beaker while stirring at room temperature to obtain a homogeneous composition.

[0130] evaluation: The leave-on oils prepared above were evaluated as follows in terms of stability, conditioning effect, and perceived lightness.

[0131] stability The appearance and odor of each composition prepared above were checked after storage at 10°C for 24 hours, 4°C for 1 or 2 months, 45°C for 1 or 2 months, and 50°C for 1 or 2 weeks.

[0132] If there were no apparent differences in appearance or odor after storage under all conditions, the tested composition was considered stable; otherwise, the tested composition was considered unstable.

[0133] Conditioning effect and feeling of lightness Hair swatches were washed with silicone-free shampoo (0.4g per gram of hair swatch) and dried with a towel until no more water dripped from them.

[0134] Next, 0.1 to 0.12 g of each leave-on oil obtained above was applied uniformly from the center to the tip of a 6 g hair swatch, and then blow-dried.

[0135] Next, four trained experts ranked the conditioning effect and sense of lightness provided by each leave-on oil on a scale of 1 to 8 (rank 1 being the best and rank 8 being the worst).

[0136] The results for stability, conditioning effect, and perceived lightness are summarized in Table 3.

[0137] [Table 3]

[0138] Table 3 shows that each of the leave-on oils in Examples 1 to 5 of the present invention is stable and can provide a good conditioning effect and a feeling of lightness, that is, it does not leave a sticky feeling.

Claims

1. A silicone-free composition for conditioning hair, a) at least one volatile alkane, b) At least one fatty substance selected from unsaturated aliphatic compounds containing C12-C20 carbon chains, fatty acid ester oils, and mixtures thereof, and c) At least one thickener selected from poly(ester-amide) polymers with esters as terminal groups, preferably containing one or two ethylenically unsaturated polymers and / or preferably containing two to five carbon atoms, optionally hydrogenated, block copolymers of styrene and olefins, particularly diblock or triblock copolymers, and mixtures thereof. A composition containing the following:

2. Volatile alkanes, linear C 7 ~C 14 Alkanes, branched C 8 ~C 16 The composition according to claim 1, selected from alkanes and mixtures thereof.

3. The composition according to claim 1 or 2, wherein the volatile alkane is present in an amount of 1% to 90% by mass, preferably 10% to 80% by mass, and more preferably 20% to 80% by mass, based on the total mass of the composition.

4. The composition according to any one of claims 1 to 3, wherein the unsaturated aliphatic compound is selected from unsaturated aliphatic alcohols containing C12 to C20 carbon chains, preferably from unsaturated aliphatic monoalcohols containing C12 to C20 carbon chains, more preferably from linear unsaturated aliphatic monoalcohols containing C14 to C20 carbon chains, and most preferably the unsaturated aliphatic compound is oleyl alcohol.

5. The fatty acid ester oil is selected from liquid monoesters of saturated or unsaturated branched C 3 -C 22 aliphatic monoacids and saturated or unsaturated branched C 2 -C 20 aliphatic monohydric alcohols, and preferably, the fatty acid ester oil is a saturated straight-chain or branched C 6 -C 20 aliphatic monoacids and saturated branched C 2 -C 6 The composition according to any one of claims 1 to 4, which is selected from liquid monoesters of aliphatic monohydric alcohols.

6. Fatty acid ester oil is given by the following formula: R 1 -C(=O)-O-R 2 [In the formula, R 1 R represents a branched alkyl group with 3 to 22 carbon atoms, preferably 6 to 20 carbon atoms. 2 R represents a branched alkyl group with 3 to 20 carbon atoms, preferably 2 to 6 carbon atoms, and preferably R 1 +R 2 The total number of carbon atoms may be 9 or more, preferably 12 or more, more preferably 16 or more, and most preferably 20 or more. A composition according to any one of claims 1 to 5, selected from esters having the following properties.

7. The composition according to any one of claims 1 to 6, wherein the fatty acid ester is selected from isohexyl laurate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, isopropyl isostearate, and mixtures thereof, and preferably the fatty acid ester oil is isopropyl isostearate.

8. The composition according to any one of claims 1 to 7, wherein a fatty substance selected from unsaturated aliphatic compounds containing C12 to C20 carbon chains, fatty acid ester oils, and mixtures thereof is present in an amount ranging from 0.1% to 40% by mass, preferably 1% to 30% by mass, and more preferably 2% to 20% by mass, based on the total mass of the composition.

9. Thickening agent, - A resin prepared by reacting a diacid, a diamine, a polyol, and a monoalcohol, wherein (i) polymerized fatty acids account for at least 50 equivalents of the diacid, and (ii) ethylenediamine accounts for at least 50 equivalents of the diamine, - Preferably a diblock copolymer having a hydrogenated styrene block and an ethylene / C2-C4 alkylene block, more specifically, preferably a diblock copolymer having a hydrogenated styrene block and an ethylene / ethylene or ethylene / propylene or ethylene / butylene block. - Preferably a hydrogenated diblock copolymer having a styrene block and an ethylene / butadiene block, - Preferably, hydrogenated triblock copolymers of styrene-ethylene / propylene-styrene, styrene-ethylene / butadiene-styrene, styrene-isoprene-styrene, or styrene-butadiene-styrene. - A mixture of styrene-butadiene / ethylene-styrene triblock hydrogenated copolymer and ethylene-propylene-styrene hydrogenated star polymer, and - These mixtures A composition according to any one of claims 1 to 8, selected from the above.

10. The composition according to any one of claims 1 to 8, wherein the thickener is selected from a copolymer of hydrogenated dilinoleic acid, ethylenediamine, C2-C6 glycol, and C10-C22 monoalcohol, preferably a hydrogenated diblock copolymer having a styrene block and an ethylene / C2-C4 alkylene block, and mixtures thereof, and preferably the thickener is selected from hydrogenated styrene / isoprene copolymer, hydrogenated styrene / butadiene copolymer, styrene / isoprene copolymer, bis-stearylethylenediamine / neopentyl glycol / hydrogenated dilinoleic acid dimer stearyl copolymer, and mixtures thereof.

11. The composition according to any one of claims 1 to 10, wherein the thickening agent is present in an amount of 0.1% to 15% by mass, preferably 1% to 10% by mass, and more preferably 2% to 8% by mass, based on the total mass of the composition.

12. With respect to the total mass of the composition, a) 20% to 80% by mass of linear C 7 ~C 14 Alkanes, branched C 8 ~C 16 Alkanes, and at least one volatile alkane selected from mixtures thereof, b) 2% to 10% by mass of oleyl alcohol, and 2% to 10% by mass of at least one fatty acid ester oil selected from ethyl laurate, isohexyl laurate, hexyl laurate, isopropyl myristate, ethyl palmitate, isopropyl palmitate, isopropyl stearate, isopropyl isostearate, and mixtures thereof, and c) At least one thickening agent selected from 2% to 8% by mass, consisting of styrene hydride / isoprene copolymer, styrene hydride / butadiene copolymer, styrene / isoprene copolymer, and bis-stearylethylenediamine / neopentyl glycol / hydrogenated dilinoleic acid dimer stearyl copolymer. The composition according to claim 1, comprising:

13. The composition according to any one of claims 1 to 12, further comprising linear C15-C19 alkanes and / or branched C17-C19, particularly branched C17-C19 alkanes, in an amount ranging from 2% to 30% by mass, preferably 5% to 25% by mass, and more preferably 10% to 20% by mass, based on the total mass of the composition.

14. A method for conditioning hair, comprising the step of applying a composition according to any one of claims 1 to 13 to the hair.

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