Composition for conditioning hair

Abstract

The present invention relates to a composition, preferably for conditioning the hair, comprising: a) at least one cellulose-based polymer; b) at least one nonionic surfactant; (c) from 1.5% to 30% by weight, relative to the total weight of the composition, of at least one hydroxy acid; and b) at least one carboxylic acid of formula (I) and / or a salt thereof: R1-N-(CH (R2) COOH) 2 (I) wherein:-R1 represents a hydrogen atom or a group-CH (COOH)-(CH2) 2-COOH,-CH2CH2OH,-CH (CH3) COOH,-(CH2) 2N (COR3)-CH2-COOH or-CH (COOH)-CH2-COOH; and when R1 represents a hydrogen atom, R2 represents a CH2COOH group, or when R1 is a group other than a hydrogen atom, R2 represents a hydrogen atom; and-R3 represents a linear or branched alkyl group comprising 1 to 4 carbon atoms or a cycloalkyl group comprising 3 to 30 carbon atoms. The invention also relates to a method for conditioning the hair, which comprises applying the composition to the hair.

Description

Technical Field

[0001] This invention belongs to the field of cosmetics. In particular, this invention relates to compositions, preferably compositions for conditioning hair. This invention also relates to methods for conditioning hair. Background Technology

[0002] When consumers perceive scalp problems such as dandruff, scalp sensitivity, and hair loss, they tend to use leave-on lotions.

[0003] Some leave-on products typically contain high concentrations of water- and alcohol-soluble active ingredients. To achieve greater transdermal absorption or penetration through hair follicles, an easy way is to maintain a concentration gradient, meaning a large amount of active ingredient remains on the surface. Often, this large amount of active ingredient will create an unwanted sticky feeling on the scalp and hair roots.

[0004] Therefore, there is a need for effective solutions that provide a good feeling for the hair. Summary of the Invention

[0005] Therefore, one object of the present invention is to develop a composition, preferably a composition for conditioning hair, which provides a good fiber feel.

[0006] Therefore, according to a first aspect, the present invention provides a composition, preferably a composition for conditioning hair, the composition comprising: a) At least one cellulose-based polymer; b) At least one nonionic surfactant; (c) at least one hydroxy acid, in amounts ranging from 1.5% to 30% by weight relative to the total weight of the composition; and d) At least one carboxylic acid of formula (I) and / or its salt: R1-N-(CH(R2)COOH)2(I) in: -R1 represents a hydrogen atom or the -CH(COOH)-(CH2)2-COOH, -CH2CH2OH, -CH(CH3)COOH, -(CH2)2N(COR3)-CH2-COOH, or -CH(COOH)-CH2-COOH group; and - When R1 represents a hydrogen atom, R2 represents a CH2COOH group; or when R1 is a group other than a hydrogen atom, R2 represents a hydrogen atom; and -R3 indicates a straight-chain or branched alkyl group containing 1 to 4 carbon atoms or a cycloalkyl group containing 3 to 30 carbon atoms.

[0007] The inventors have discovered that the compositions according to the invention can effectively provide a good fibrous feel, including a soft and / or non-greasy feel, and / or less stickiness.

[0008] According to a second aspect, the present invention provides a method for conditioning hair, comprising applying a composition according to the invention to hair.

[0009] Other subjects, features, aspects, and advantages of the invention will become even clearer after reading the following detailed description and examples. Detailed Implementation

[0010] As used herein, unless otherwise stated, the limits of a numerical range are included within that range, particularly in expressions “between… and…” and “from… to…”.

[0011] As used herein, the term “comprising / including / containing” is interpreted as encompassing all specifically mentioned features as well as optional, additional, unspecified features.

[0012] As used herein, the use of the term “comprising / including / containing” also discloses an implementation in which no features other than those specifically mentioned (i.e., “composed of”) are present.

[0013] Unless otherwise defined, 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 pertains. Where a definition of a term in this specification conflicts with the meaning commonly understood by one of ordinary skill in the art to which this invention pertains, the definition set forth herein shall prevail.

[0014] Unless otherwise stated, all numerical values ​​used in the specification and claims to represent component quantities, etc., should be understood to be modified by the term "about". Therefore, unless indicated otherwise, the numerical values ​​and parameters described herein are approximate values ​​that can be changed as needed to obtain the desired performance.

[0015] As used herein, the expression "at least one / kind" is equivalent to the expression "one / kind or more / kinds".

[0016] According to a first aspect, the composition of the present invention comprises: a) At least one cellulose-based polymer; b) At least one nonionic surfactant; (c) at least one hydroxy acid, in amounts ranging from 1.5% to 30% by weight relative to the total weight of the composition; and d) At least one carboxylic acid of formula (I) as defined above and / or a salt thereof.

[0017] Cellulose-based polymers The compositions of the present invention comprise at least one cellulose-based polymer.

[0018] As used herein, the term "cellulose-based" polymer is intended to refer to any polysaccharide compound having a sequence of glucose residues linked together via β-1,4 bonds in its structure; cellulose derivatives, other than unsubstituted cellulose, can be anionic, cationic, amphoteric, or nonionic.

[0019] Preferably, the cellulose-based polymer used according to the present invention is selected from unsubstituted cellulose (including those in microcrystalline form), cellulose esters, cellulose ethers, cellulose ester ethers, and mixtures thereof.

[0020] Cellulose esters include inorganic esters of cellulose (nitrocellulose, cellulose sulfate, cellulose phosphate, etc.), organic cellulose esters (cellulose monoacetate, cellulose triacetate, cellulose amide propionate, cellulose acetate butyrate, cellulose acetate propionate, and cellulose acetate trimellitate, etc.), and mixed organic / inorganic esters of cellulose, such as cellulose acetate butyrate sulfate and cellulose acetate propionate sulfate.

[0021] Cellulose ethers include nonionic cellulose ethers, anionic cellulose ethers, and cationic cellulose ethers.

[0022] In nonionic cellulose ethers, (C1-C4)alkyl celluloses may be mentioned, such as methylcellulose and ethylcellulose (e.g., Ethocel standard 100 Premium from Dow Chemical); (poly)hydroxy (C1-C4)alkyl celluloses, such as hydroxymethylcellulose, hydroxyethylcellulose (e.g., Natrosol 250 HHR from Ashland), and hydroxypropylcellulose (e.g., Klucel EF from Aqualon); and mixed (poly)hydroxy (C1-C4)alkyl (C1-C4)alkyl celluloses, such as hydroxypropyl methylcellulose (e.g., Methocel E4M from Dow Chemical), hydroxyethyl methylcellulose, hydroxyethyl ethylcellulose (e.g., Bermocoll 20 E 481 FQ from Akzo Nobel), and hydroxybutyl methylcellulose.

[0023] In anionic cellulose ethers, (poly)carboxyl (C1-C4) alkyl cellulose and its salts may be mentioned. For example, carboxymethyl cellulose, carboxymethyl methyl cellulose (e.g., Blanose 7M from Aqualon), and carboxymethyl hydroxyethyl cellulose and their sodium salts may be mentioned.

[0024] In cationic cellulose ethers, reference may be made to cationic cellulose derivatives, such as cellulose copolymers or cellulose derivatives grafted with water-soluble quaternary ammonium monomers, and these are particularly described in patent US 4,131,576, such as (poly)hydroxy (C1-C4)alkyl cellulose, such as hydroxymethyl cellulose, hydroxyethyl cellulose, or hydroxypropyl cellulose grafted particularly with methacryloyl ethyltrimethylammonium, methacrylamidopropyltrimethylammonium, or dimethyl diallyl ammonium salts.

[0025] Among cellulose ester ethers, hydroxypropyl methylcellulose phthalate and ethyl cellulose sulfate may be mentioned.

[0026] More preferably, the cellulose-based polymer is selected from nonionic cellulose ethers.

[0027] Even more preferably, the cellulose-based polymer is selected from (poly)hydroxy (C1-C4)alkyl cellulose, mixed (poly)hydroxy (C1-C4)alkyl (C1-C4)alkyl cellulose, and mixtures thereof.

[0028] Most preferably, the cellulose-based polymer is selected from hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose; hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, hydroxyethyl ethyl cellulose, hydroxybutyl methyl cellulose, and mixtures thereof.

[0029] Advantageously, the cellulose-based polymer is present in the composition in an amount ranging from 0.01% to 10% by weight, preferably from 0.02% to 5% by weight, more preferably from 0.02% to 3% by weight, more preferably from 0.03% to 1.5% by weight, and more preferably from 0.03% to 0.5% by weight, relative to the total weight of the composition according to the invention.

[0030] Nonionic surfactants The compositions of the present invention contain at least one nonionic surfactant.

[0031] Exemplary nonionic surfactants include, but are not limited to: (1) A polyoxyethylene condensate of alkylphenols, for example, a condensation product of alkylphenols and ethylene oxide having an alkyl group having a straight or branched configuration comprising about 6 to about 20 carbon atoms, wherein the ethylene oxide is present in an amount equal to about 10 to about 60 moles of ethylene oxide per mole of alkylphenol. (2) Those derived from the condensation of ethylene oxide with products obtained from the reaction of propylene oxide and ethylenediamine; (3) A condensation product of an aliphatic alcohol having a straight-chain or branched configuration of about 8 to about 18 carbon atoms with ethylene oxide, for example, a coconut oil alcohol ethylene oxide condensate having about 10 to about 30 moles of ethylene oxide per mole of coconut oil alcohol, wherein the coconut oil alcohol moiety has about 10 to about 14 carbon atoms. (4) Equation [R] 1 R 2 R 3 Long-chain tertiary amine oxides of N→O, wherein R 1 It comprises an alkyl, alkenyl, or monohydroxyalkyl group having about 8 to about 18 carbon atoms, 0 to about 10 ethylene oxide moieties, and 0 to about 1 glycerol moieties, and R 2 and R 3 Each of them independently contains about 1 to about 3 carbon atoms and 0 to about 1 hydroxyl group, such as methyl, ethyl, propyl, hydroxyethyl or hydroxypropyl; (5) A long-chain tertiary phosphine oxide of formula [RR'R"P→O], wherein R comprises an alkyl, alkenyl or monohydroxyalkyl group with a chain length ranging from about 8 to about 18 carbon atoms, 0 to about 10 ethylene oxide moieties and 0 to 1 glyceryl moieties, and R' and R" are each independently an alkyl or monohydroxyalkyl group containing about 1 to about 3 carbon atoms. (6) A long-chain dialkyl sulfoxide comprising a short-chain alkyl or hydroxyalkyl (usually methyl) having 1 to 3 carbon atoms and a long hydrophobic chain comprising an alkyl, alkenyl, hydroxyalkyl or ketylalkyl having about 8 to 20 carbon atoms, 0 to 10 ethylene oxide moieties and 0 to 1 glyceryl moieties. (7) Alkyl polysaccharide (APS) surfactants (e.g., alkyl polyglucosides) comprising an APS surfactant having a hydrophobic group having about 6 to about 30 carbon atoms and a hydrophilic group being a polysaccharide (e.g., a polyglucoside); optionally, a polyepoxyalkyl group connecting the hydrophobic and hydrophilic portions may be present; and the alkyl group (i.e., the hydrophobic portion) may be saturated or unsaturated, branched or unbranched, and unsubstituted or substituted (e.g., substituted with hydroxyl or cyclic rings); preferred materials are alkyl polyglucosides, which are commercially available from Henkel, ICI Americas, and Seppic; and (8) Polyoxyethylene alkyl ethers, such as RO(CH2CH2O) n Those containing H and polyethylene glycol (PEG) glycerol fatty esters, such as R(O)OCH2CH(OH)CH2(OCH2CH2) n Those with OH, wherein n is from 1 to about 200, preferably from about 20 to about 100, and R is an alkyl group having about 8 to about 22 carbon atoms.

[0032] Polyethylene glycol derivatives of glycerides that can be used in this document (8) include derivatives of monoglycerides, diglycerides and triglycerides, and mixtures thereof.

[0033] Preferably, the nonionic surfactant is selected from those of the following general formula (II): (II) in: n represents the degree of ethoxylation, which is about 4 to about 200, preferably about 5 to about 150, more preferably about 20 to about 120, and R contains an aliphatic group having about 5 to about 25 carbon atoms, preferably about 7 to about 20 carbon atoms.

[0034] Suitable polyethylene glycol derivatives of glycerides can be polyethylene glycol derivatives of hydrogenated castor oil.

[0035] More preferably, the nonionic surfactant is selected from PEG-20 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-45 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-55 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-80 hydrogenated castor oil, PEG-100 hydrogenated castor oil, and mixtures thereof.

[0036] Advantageously, the nonionic surfactant is present in the composition in an amount ranging from 0.01% to 10% by weight, preferably from 0.02% to 5% by weight, more preferably from 0.03% to 3% by weight, and more preferably from 0.05% to 1.5% by weight, relative to the total weight of the composition according to the invention.

[0037] Hydroxy acids The composition contains 1.5% to 30% by weight of at least one hydroxy acid relative to the total weight of the composition of the present invention.

[0038] The hydroxy acid suitable for the composition according to the invention may be selected from α-hydroxy acids, β-hydroxy acids, and combinations thereof, preferably α-hydroxy acids.

[0039] α-hydroxy acid According to the present invention, the term "α-hydroxy acid" should be understood to refer to a carboxylic acid having at least one hydroxyl functional group occupying the α-position (the carbon adjacent to the carboxylic acid functional group) on the acid.

[0040] Suitable α-hydroxy acids include glycolic acid, citric acid, lactic acid, methyl lactic acid, glucuronic acid, pyruvic acid, 2-hydroxybutyric acid, 2-hydroxyvalerate, 2-hydroxyhexanoic acid, 2-hydroxyheptanoic acid, 2-hydroxyoctanoic acid, 2-hydroxynonanoic acid, 2-hydroxydecanoic acid, 2-hydroxyundecanoic acid, 2-hydroxydodecanoic acid, 2-hydroxytetradecanoic acid, 2-hydroxyhexadecanoic acid, 2-hydroxyoctadecanoic acid, 2-hydroxytetracosanoic acid, 2-hydroxyeicosanoic acid, mandelic acid, phenyllactic acid, gluconic acid, galacturonic acid, lac acid, ribonic acid, malonic acid, tartaric acid, malic acid, and fumaric acid.

[0041] Preferably, the α-hydroxy acid is selected from lactic acid, glycolic acid, tartaric acid, mandelic acid, citric acid, and combinations thereof.

[0042] More preferably, the α-hydroxy acid in the composition is lactic acid.

[0043] Lactic acid or 2-hydroxypropionic acid provides a gentle exfoliation of excess sebum, residue, and loose dead cells around the hair follicles, and activates and lifts the hair roots.

[0044] β-hydroxy acid According to the present invention, the term "β-hydroxy acid" should be understood to refer to a carboxylic acid having a hydroxyl functional group and a carboxyl functional group separated by two carbon atoms.

[0045] Suitable β-hydroxy acids include salicylic acid, propionic acid, β-hydroxybutyric acid, β-hydroxy-β-methylbutyric acid, carnitine, their derivatives and combinations thereof.

[0046] Preferably, the β-hydroxy acid is selected from salicylic acid and its derivatives of formula (III): (III) Wherein R is a straight-chain, branched, or cyclic saturated aliphatic group or an aliphatic unsaturated group containing one or more double bonds, the double bonds being conjugated or unconjugated, and these groups contain 2 to 22, preferably 3 to 11, carbon atoms and can be substituted by, for example, at least one substituent selected from: (a) a halogen atom, (b) a trifluoromethyl group, (c) a hydroxyl group in free form or esterified with 1 to 6 carbon atoms, or (d) a carboxyl functional group in free form or esterified with a lower alcohol having 1 to 6 carbon atoms; R' is a hydroxyl group or an ester functional group of formula (IV): (IV) R1 is a straight or branched, saturated or unsaturated aliphatic group having 1 to 18 carbon atoms.

[0047] Preferred salicylic acid derivatives include 5-n-octanoyl salicylic acid (octanoyl salicylic acid), 5-n-decanoyl salicylic acid, 5-n-dodecanoyl salicylic acid, 5-n-heptoxy salicylic acid and 4-n-heptoxy salicylic acid.

[0048] More preferably, the β-hydroxy acid is selected from salicylic acid, 5-n-octanoyl salicylic acid, 5-n-decanoyl salicylic acid, 5-n-dodecanoyl salicylic acid, 5-n-heptoxy salicylic acid, 4-n-heptoxy salicylic acid and combinations thereof.

[0049] The most preferred β-hydroxy acid is salicylic acid.

[0050] Advantageously, the hydroxy acid is present in the composition in an amount ranging from 1.8% to 25% by weight, preferably from 2% to 20% by weight, preferably from 2.2% to 15% by weight, more preferably from 2.5% to 10% by weight, and even more preferably from 3% to 6% by weight, relative to the total weight of the composition according to the invention.

[0051] Carboxylic acids of formula (I) and / or their salts The compositions of the present invention comprise at least one carboxylic acid of formula (I) and / or a salt thereof: R1-N-(CH(R2)COOH)2(I) in: -R1 represents a hydrogen atom or the -CH(COOH)-(CH2)2-COOH, -CH2CH2OH, -CH(CH3)COOH, -(CH2)2N(COR3)-CH2-COOH, or -CH(COOH)-CH2-COOH group; and - When R1 represents a hydrogen atom, R2 represents a CH2COOH group; or when R1 is a group other than a hydrogen atom, R2 represents a hydrogen atom; and -R3 indicates a straight-chain or branched alkyl group containing 1 to 4 carbon atoms or a cycloalkyl group containing 3 to 30 carbon atoms.

[0052] More specifically, the carboxylic acid in formula (I) corresponds to: -A compound containing four carboxylic acid functional groups when R1 represents a hydrogen atom and R2 represents a -CH2-COOH group, or when R1 represents a -CH(COOH)-(CH2)2-COOH group and R2 represents a hydrogen atom, or when R1 represents a -CH(COOH)-CH2-COOH group and R2 represents a hydrogen atom; - When R1 represents a CH(CH3)-COOH group and R2 represents a hydrogen atom, or when R1 represents a -(CH2)2-N(COR3)-CH2-COOH group and R2 represents a hydrogen atom, a compound containing three carboxylic acid functional groups; and - When R1 represents the -CH2CH2OH group and R2 represents a hydrogen atom, it is a compound containing two carboxylic acid functional groups.

[0053] The carboxylic acid of formula (I) can be in the form of a pure enantiomer, preferably the L configuration, or in the form of a mixture, especially a racemic mixture.

[0054] The salts of the carboxylic acid of formula (I) are preferably selected from alkali metal salts, alkaline earth metal salts, transition metal salts, organic amine salts, ammonium salts and mixtures thereof.

[0055] Examples of alkali metal salts include, in particular, sodium (Na). + ) and potassium (K + Salts, and examples of alkaline earth metal salts particularly include calcium (Ca). 2+ ) and magnesium (Mg 2+ )Salt.

[0056] For the purposes of this invention, "transition metal" refers to a metal containing an incomplete d-sublayer, and more particularly to the II oxidation state, such as cobalt (Co). 2+ ), iron (Fe) 2+ ), manganese (Mn 2+ ), Zinc (Zn) 2+ ) and copper (Cu 2+ ).

[0057] Regarding organic amine salts, references may be made to salts of primary, secondary, or tertiary amines, or alternatively, salts of alkanolamines. The amines exhibit one or more identical or dissimilar straight-chain or branched C1 to C2 chains. 20 Alkyl groups, which optionally contain heteroatoms such as oxygen.

[0058] Preferably, the carboxylic acid of formula (I) and / or its salts used in the compositions of the present invention are selected from methylglycine diacetic acid, N-lauroyl ethylenediamine-N,N',N'-triacetic acid, N,N-dicarboxymethyl glutamic acid, iminodisuccinic acid, N,N-bis(carboxymethyl)aspartic acid, its alkali metal salts, its alkaline earth metal salts, its transition metal salts, its organic amine salts, its ammonium salts, its optical isomers, its geometric isomers, its solvates, and mixtures thereof, and more preferably from N,N-dicarboxymethyl glutamic acid, N,N-bis(carboxymethyl)aspartic acid, its alkali metal salts, its alkaline earth metal salts, its transition metal salts, its organic amine salts, its ammonium salts, its optical isomers, its geometric isomers, its solvates, and mixtures thereof.

[0059] Even better, the carboxylic acid and / or its salts of formula (I) are selected from N,N-dicarboxymethyl-L-glutamic acid (GLDA), N,N-bis(carboxymethyl)-L-aspartic acid, their alkali metal salts, their alkaline earth metal salts, their transition metal salts, their organic amine salts, their ammonium salts, their solvates, and mixtures thereof.

[0060] Preferably, the carboxylic acid of formula (I) and / or its salts used according to the present invention are selected from N,N-dicarboxymethyl-L-glutamic acid (GLDA), tetrasodium N,N-bis(carboxymethyl)-L-glutamic acid (tetrasodium glutamate diacetate), and mixtures thereof.

[0061] Advantageously, the carboxylic acid and / or its salt of formula (I) are present in the composition in an amount ranging from 0.01% to 20% by weight, preferably from 0.02% to 10% by weight, preferably from 0.03% to 5% by weight, preferably from 0.03% to 1% by weight, and more preferably from 0.03% to 0.3% by weight, relative to the total weight of the composition according to the invention.

[0062] Aqueous phase The compositions of the present invention may further comprise a continuous aqueous phase.

[0063] The aqueous phase contains water.

[0064] Water is preferably present in the composition in an amount ranging from 50% to 98% by weight, more preferably from 60% to 97% by weight, relative to the total weight of the composition of the present invention.

[0065] Optionally, the continuous aqueous phase comprises one or more organic solvents miscible with water (at room temperature 25°C), such as monohydric alcohols having 2 to 6 carbon atoms, such as ethanol and isopropanol; polyhydric alcohols having 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, and more preferably 2 to 6 carbon atoms, such as glycerol, propylene glycol, butanediol, pentanediol, hexanediol, octyl glycol, dipropylene glycol, and diethylene glycol; glycol ethers (especially having 3 to 16 carbon atoms), such as monopropylene glycol (C1-C4) alkyl ethers, dipropylene glycol (C1-C4) alkyl ethers or tripropylene glycol (C1-C4) alkyl ethers, monoethylene glycol (C1-C4) alkyl ethers, diethylene glycol (C1-C4) alkyl ethers or triethylene glycol (C1-C4) alkyl ethers and mixtures thereof.

[0066] Cosmetic active ingredients Optionally, the compositions of the present invention comprise one or more additional active ingredients for conditioning hair and / or caring for the scalp, such as anti-inflammatory agents.

[0067] Those skilled in the art can select the amount of additional active ingredients according to the desired purpose.

[0068] adjuvants The compositions of the present invention may also contain other adjuvants, such as fragrances, water-soluble additives, pH adjusters, preservatives, etc.

[0069] Those skilled in the art can choose the amount of additional adjuvants so as not to negatively affect the final use of the composition according to the invention.

[0070] According to a preferred embodiment, the composition comprises, relative to the total weight of the composition of the present invention: a) 0.03% to 0.5% by weight of at least one nonionic cellulose, selected from hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, hydroxyethyl cellulose, and mixtures thereof; b) 0.05% to 1.5% by weight of at least one nonionic surfactant selected from PEG-20 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-45 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-55 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-80 hydrogenated castor oil, PEG-100 hydrogenated castor oil, and mixtures thereof. c) 2.5% to 10% by weight of at least one hydroxy acid selected from lactic acid, glycolic acid, tartaric acid, mandelic acid, citric acid, and combinations thereof; and d) 0.03% by weight to 0.3% by weight of at least one carboxylic acid of formula (I) and / or a salt thereof, selected from N,N-dicarboxymethyl-L-glutamic acid (GLDA), tetrasodium N,N-bis(carboxymethyl)-L-glutamic acid, and mixtures thereof.

[0071] Preparation and Uses The composition according to the invention can be prepared by mixing components a) to d), which are essential components, and other components as described above.

[0072] The compositions according to the present invention can provide a good fibrous feel.

[0073] The composition according to the invention can be, for example, a conditioning agent.

[0074] According to a second aspect, the present invention provides a method for conditioning hair, comprising applying a composition according to the invention to hair. Example

[0075] The following embodiments are given as non-limiting examples of the present invention.

[0076] The main raw materials used, their product names, and their suppliers are listed in Table 1.

[0077] Table 1 Invention Examples 1-3 and Comparative Examples 1-6 The compositions of Examples (IE.) 1-3 and Comparative Examples (CE.) 1-6 were prepared using the components listed in Table 2 (unless otherwise stated, the content is expressed as a weight percentage based on the total weight of each composition): Table 2 The compositions of Examples 1-3 are compositions according to the present invention.

[0078] The composition of Comparative Example 1 does not contain at least one carboxylic acid of formula (I) and / or its salt.

[0079] The composition of Comparative Example 2 does not contain at least one hydroxy acid.

[0080] The composition of Comparative Example 3 does not contain at least one nonionic surfactant.

[0081] The composition of Comparative Example 4 does not contain at least one cellulose-based polymer.

[0082] The composition of Comparative Example 5 does not contain at least one nonionic surfactant and at least one cellulose-based polymer.

[0083] The composition of Comparative Example 6 contains at least one hydroxy acid at 1% by weight relative to the total weight of the composition.

[0084] Preparation procedure: Taking the composition of Example 1 as an example, each composition is prepared as follows: 1) Add water to the main container; 2) Add hydroxyethyl cellulose while stirring until the hydroxyethyl cellulose powder is fully wetted and dispersed; 3) Add tetrasodium glutamate diacetate and PEG-60 hydrogenated castor oil while stirring until fully dissolved; 4) Add lactic acid and water-soluble active ingredients (dipotassium glycyrrhizate, nicotinamide, and caffeine) while stirring to obtain a homogeneous composition; and 5) Adjust the pH with potassium hydroxide.

[0085] Evaluate The stickiness, softness, and oiliness of the hair after applying the compositions of Examples 1-3 and Comparative Examples 1-6 were evaluated by in vitro sample testing.

[0086] In vitro sample testing A 1g sample of natural hair was secured to a support by clamps, upside down, from the root. 0.45g of the composition to be tested was applied to the fiber 3 cm from the root.

[0087] Hair feel experts rate stickiness from 1 to 5 based on the following criteria: 1. No powder coating feel; no sticky feeling on fingers after touching the sample. 2: There is a slight powder coating, and the sample feels slightly sticky on the fingers, but it is smooth; 3: The powder coating and stickiness on the fingers are acceptable and not associated with a feeling of uncleanliness; 4: Significant powder coating and stickiness on fingers, the coating creates an unpleasant feeling, and there is still no visible white powder on the sample; 5: Strong powder coating and very sticky on the fingers, and visible white powder may appear after several combings.

[0088] The scores for the adhesiveness on the fibers after applying the compositions of Examples 1-3 and Comparative Examples 1-6 are summarized in Table 3.

[0089] Table 3 Double-blind study In a single-center, randomized, double-blind study, 69 European women were invited to use the composition of Invention Example 1 for 8 weeks and complete questionnaires regarding whether their hair felt soft and non-greasy immediately after the first application (Timm) and after 8 weeks of application (Tw8). The percentage of women who agreed with the statements was recorded.

[0090] The results after applying the composition of Example 1 are summarized in Table 4.

[0091] Table 4 As can be seen from Table 4, the composition of Invention Example 1 results in a soft feel on the hair and does not make the hair feel greasy.

Claims

1. A composition, preferably a composition for conditioning hair, said composition comprising: a) At least one cellulose-based polymer; b) At least one nonionic surfactant; (c) at least one hydroxy acid, relative to the total weight of the composition, comprising 1.5% to 30% by weight; and d) At least one carboxylic acid of formula (I) and / or its salt: R1-N-(CH(R2)COOH)2 (I) in: -R1 represents a hydrogen atom or the -CH(COOH)-(CH2)2-COOH, -CH2CH2OH, -CH(CH3)COOH, -(CH2)2N(COR3)-CH2-COOH, or -CH(COOH)-CH2-COOH group; and - When R1 represents a hydrogen atom, R2 represents a CH2COOH group; or when R1 is a group other than a hydrogen atom, R2 represents a hydrogen atom; and -R3 indicates a straight-chain or branched alkyl group containing 1 to 4 carbon atoms or a cycloalkyl group containing 3 to 30 carbon atoms.

2. The composition according to claim 1, wherein... The cellulose-based polymer is selected from unsubstituted cellulose, cellulose esters, cellulose ethers, cellulose ester ethers, and mixtures thereof. More preferably, the cellulose-based polymer is selected from nonionic cellulose ethers; even more preferably, the cellulose-based polymer is selected from (poly)hydroxy (C1-C4)alkyl cellulose, mixed (poly)hydroxy (C1-C4)alkyl (C1-C4)alkyl cellulose, and mixtures thereof. Most preferably, the cellulose-based polymer is selected from hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose; hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, hydroxyethyl ethyl cellulose, hydroxybutyl methyl cellulose, and mixtures thereof.

3. The composition according to claim 1 or 2, wherein the cellulose-based polymer is present in an amount ranging from 0.01 wt% to 10 wt%, preferably from 0.02 wt% to 5 wt%, preferably from 0.02 wt% to 3 wt%, preferably from 0.03 wt% to 1.5 wt%, more preferably from 0.03 wt% to 0.5 wt%, relative to the total weight of the composition.

4. The composition according to any one of claims 1-3, wherein the nonionic surfactant is selected from those of general formula (II): (II) in: n is the degree of ethoxylation, which is about 4 to about 200, preferably about 5 to about 150, more preferably about 20 to about 120, and R contains an aliphatic group having about 5 to about 25 carbon atoms, preferably about 7 to about 20 carbon atoms. Preferably, the nonionic surfactant is selected from PEG-20 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-45 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-55 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-80 hydrogenated castor oil, PEG-100 hydrogenated castor oil, and mixtures thereof.

5. The composition according to any one of claims 1-4, wherein the nonionic surfactant is present in an amount ranging from 0.01% to 10% by weight, preferably from 0.02% to 5% by weight, more preferably from 0.03% to 3% by weight, and even more preferably from 0.05% to 1.5% by weight, relative to the total weight of the composition.

6. The composition according to any one of claims 1-5, wherein the hydroxy acid is selected from α-hydroxy acids, β-hydroxy acids, and combinations thereof, preferably selected from α-hydroxy acids, and more preferably selected from lactic acid, glycolic acid, tartaric acid, mandelic acid, citric acid, and combinations thereof.

7. The composition according to any one of claims 1-6, wherein the hydroxy acid is present in an amount ranging from 1.8% to 25% by weight, preferably from 2% to 20% by weight, preferably from 2.2% to 15% by weight, more preferably from 2.5% to 10% by weight, and even more preferably from 3% to 6% by weight, relative to the total weight of the composition.

8. The composition according to any one of claims 1-7, wherein the carboxylic acid of formula (I) and / or its salts are selected from methylglycine diacetic acid, N-lauroyl ethylenediamine-N,N',N'-triacetic acid, N,N-dicarboxymethyl glutamic acid, iminodisuccinic acid, N,N-bis(carboxymethyl)aspartic acid, its alkali metal salts, its alkaline earth metal salts, its transition metal salts, its organic amine salts, its ammonium salts, its optical isomers, its geometric isomers, its solvates, and mixtures thereof, and preferably selected from N,N-dicarboxymethyl glutamic acid, N,N-bis(carboxymethyl)aspartic acid, its alkali metal salts, its alkaline earth metal salts, its transition metal salts, its organic amine salts, its ammonium salts, its optical isomers, its geometric isomers, its solvates, and mixtures thereof, more preferably selected from N,N-dicarboxymethyl-L-glutamic acid, N,N-bis(carboxymethyl)-L-aspartic acid tetrasodium, and mixtures thereof.

9. The composition according to any one of claims 1-8, wherein the carboxylic acid and / or its salt of formula (I) are present in an amount ranging from 0.01% to 20% by weight, preferably from 0.02% to 10% by weight, preferably from 0.03% to 5% by weight, preferably from 0.03% to 1% by weight, more preferably from 0.03% to 0.3% by weight, relative to the total weight of the composition.

10. The composition according to any one of claims 1-9, wherein the composition further comprises a continuous aqueous phase, wherein the aqueous phase comprises water.

11. The composition according to claim 10, wherein water is present in an amount ranging from 50% to 98% by weight, preferably from 60% to 97% by weight, relative to the total weight of the composition.

12. The composition of claim 1, wherein, relative to the total weight of the composition, the composition comprises: a) 0.03% to 0.5% by weight of at least one nonionic cellulose, selected from hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, hydroxyethyl cellulose, and mixtures thereof; b) 0.05% to 1.5% by weight of at least one nonionic surfactant selected from PEG-20 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-45 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-55 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-80 hydrogenated castor oil, PEG-100 hydrogenated castor oil, and mixtures thereof. c) 2.5% to 10% by weight of at least one hydroxy acid selected from lactic acid, glycolic acid, tartaric acid, mandelic acid, citric acid, and combinations thereof; and d) 0.03% by weight to 0.3% by weight of at least one carboxylic acid of formula (I) and / or a salt thereof, selected from N,N-dicarboxymethyl-L-glutamic acid, tetrasodium N,N-bis(carboxymethyl)-L-glutamic acid, and mixtures thereof.

13. A method for conditioning hair, the method comprising applying a composition according to any one of claims 1-12 to the hair.

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