FR2972929A1 - Cosmetic composition, useful for treating keratin materials, preferably human keratin fibers such as hair, comprises cinnamon oil and nonionic surfactants - Google Patents

Abstract

Cosmetic composition comprises cinnamon oil and one or more nonionic surfactants. An independent claim is included for treating keratin materials, preferably human keratin fibers such as hair, comprising applying the composition to the keratin materials, and then non-rinsing after a possible exposure time, with or without heat.

Description

B 10-5312EN 1 Cosmetic composition comprising a cinnamon essential oil and a nonionic surfactant.

The present invention relates to a composition for the cosmetic treatment of keratinous fibers, in particular human keratinous fibers such as the hair, comprising an essential oil of cinnamon and one or more nonionic surfactants. The present invention also relates to a process for the cosmetic treatment of keratinous fibers using such a composition as well as a cosmetic use of said composition. A recurring problem in the field of hair cosmetics is to treat keratin fibers subjected to different external aggressions. Indeed, these fibers can undergo assaults of various origins, such as mechanical aggression, for example related to disentangling or blow drying, or chemical aggression, for example following a coloring or a permanent. These attacks have repercussions on the qualities of the keratinous fiber and can induce a difficult disentangling at the time of the washing of the hair, on dry hair and / or wet hair as well as a degradation of the surface properties of the fibers, which become on the surface not smooth and irregular, especially when the hair is dry. There are care products that can limit these phenomena. These products generally contain one or more keratin fiber conditioning agents, such as cationic polymers and / or cationic surfactants. However, although allowing to soften the keratinous fibers, to improve disentangling and smoothing of the hair, these compounds, used in conventional shampoos, can not be used in natural shampoos.

There is therefore a need to develop cosmetic compositions, for example natural, which make it possible to condition the hair satisfactorily, and in particular to give them good properties in terms of smoothing and disentangling the hair.

DE 100 17 865 discloses a hair growth agent comprising tea tree essential oils and cinnamon in particular proportions. The Applicant has now discovered that, surprisingly, the combination of an essential oil of cinnamon with at least one nonionic surfactant allowed to achieve the objectives set out above. In particular, the hair is smoother and disentangles more easily. The Applicant has also discovered that cinnamon essential oil makes it possible to improve the smoothing and disentangling of the hair. The present invention therefore relates to a cosmetic composition comprising an essential oil of cinnamon and one or more nonionic surfactants.

This particular combination has proved particularly suitable for the washing and / or the care of the hair and has also made it possible to obtain excellent cosmetic properties. Indeed, the use of this composition provides a good conditioning of the hair, for example in terms of detangling and smoothing hair. The present invention also relates to the use of an essential oil of cinnamon to improve the smoothing and / or disentangling of hair. In particular, the essential oil of cinnamon can be used in a cosmetic composition as described in the present application. The present invention finally relates to a process for the cosmetic treatment of keratinous substances, in particular human keratinous fibers such as the hair, which consists in applying a composition according to the invention to keratin materials. In particular, the composition according to the invention may be rinsed or not, applied under the effect of heat or not, and associated or not with chemical and / or mechanical treatments of the hair. Preferably, the compositions according to the invention are used as shampoo for washing and conditioning the hair, or as hair care products. Other objects, features, aspects and advantages of the invention will emerge even more clearly on reading the description and examples which follow. In what follows, and unless otherwise indicated, the boundaries of a domain of values are included in this field, especially in the expressions "between" and "from ... to ...". According to the invention, the composition comprises an essential oil of cinnamon and one or more nonionic surfactants. Essential oils are often used for their smell, but also for their many other pharmaceutical and / or cosmetic activities, which are known for a very long time (see in particular Aromatherapy by J. Valnet, Edition Maloine, 1984). Essential oils are distinguished from vegetable oils by the fact that they can not be broken down by saponification into glycerol and fatty acid soap. Moreover, they are volatile. According to the definition given in International Standard ISO 9235 and adopted by the European Pharmacopoeia Commission, an essential oil is a product generally of complex composition, obtained from a botanically defined plant raw material, either by steam distillation. water, either by dry distillation, or by extraction with liquid or gaseous solvents, or by a suitable mechanical process without heating (cold expression). The essential oil is most often separated from the aqueous phase by a physical process that does not entail a significant change in the composition. These essential oils can also be prepared by synthesis. The essential oil used according to the invention can be obtained from any plant material derived from the whole plant or from any part of said plant, such as, for example, leaves, stems, flowers, petals, seeds, fruits. , buds, roots, twigs of plants and / or whole plants. The essential oil according to the invention may be prepared according to the techniques mentioned above and will preferably be obtained according to the conventional technique of steam distillation. There are two kinds of cinnamon: Cinnamomum Cassia, called cinnamon from China, and Cinnamonum Zeylacum, called cinnamon of Ceylon or cinnamon bark. The essential oil of Chinese cinnamon is obtained by steaming of the product extracted from its leaves and petioles. The essential oil of Ceylon cinnamon is preferably obtained by steam distillation of the extract of its bark. Preferably, the essential oil of cinnamon used according to the present invention is essential oil of cinnamon bark. The essential oil of cinnamon is present in the composition according to the invention in preferential proportions of from 0.01 to 20% by weight, more preferably from 0.05 to 10% by weight, more preferably from 0.1 to 5% by weight. weight, relative to the total weight of the composition.

Examples of nonionic surfactants useful in the composition used according to the invention are described, for example, in "Handbook of Surfactants" by M. R. PORTER, Blackie & Son editions (Glasgow and London), 1991, pp 116-178. They are chosen in particular from alcohols, alpha-diols and (C1-C20) alkyl phenols, these compounds being polyethoxylated, polypropoxylated and / or polyglycerolated, and having at least one fatty chain comprising, for example, from 8 to 18 atoms. carbon number, the number of ethylene oxide groups and / or propylene oxide ranging in particular from 2 to 50 and the number of glycerol groups ranging in particular from 2 to 30. Mention may also be made of ethylene oxide copolymers and propylene, optionally oxyethylenated fatty acid and sorbitan esters, sucrose fatty acid esters, polyoxyalkylenated fatty acid esters, optionally oxyalkylenated alkyl mono- or polyglycosides, alkylglucoside esters, derivatives of N-alkylglucamine and N-acyl-methylglucamine, aldobionamides and amine oxides.

Unless otherwise stated, the term "fatty" compound, for example a fatty acid, means a compound comprising in its main chain at least one saturated or unsaturated hydrocarbon-based chain, such as alkyl or alkenyl having at least 8 carbon atoms, preferably from 8 to 30 carbon atoms, and more preferably from 10 to 22 carbon atoms. Preferably, the nonionic surfactants used in the present invention are chosen from the one or more nonionic surfactant (s) comprising at least one sugar unit. By "sugar unit" is meant within the meaning of the present invention, a monosaccharide portion (ie monosaccharide or oside or simple sugar) or an oligosaccharide portion (short chains formed from the sequence of monosaccharide units, possibly different) or a portion polysaccharide [long chains consisting of monosaccharide units, possibly different, ie polyholosides or polysaccharides (homopolyosides or heteropolyosides)]. Suitable sugars include, for example, sucrose, glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, lactose, and their alkylated derivatives, such as than methylated derivatives such as methylglucose. The nonionic surfactant (s) comprising at least one sugar unit that can be used according to the present invention are preferably chosen from the group consisting of: (1) alkyl mono- or polyglucosides, (2) fatty acid esters of sugar or of alkylsugar, (3) fatty sucramides, and (4) mixtures thereof.

Among these compounds, it is particularly preferred to employ alkyl mono- or polyglycosides, especially those represented by the following general formula (I):

RIO- (R 2 O) t (G), (I) wherein: R 1 represents a linear or branched alkyl and / or alkenyl group having from about 8 to 24 carbon atoms, an alkylphenyl group of which the linear or branched alkyl group has from 8 to 24 carbon atoms, R2 represents an alkylene group having about 2 to 4 carbon atoms, G represents a sugar unit having from 5 to 6 carbon atoms, t denotes a value ranging from 0 to 10, preferably 0 to 4, preferably 0 to 4, and v denotes a value ranging from 1 to 15. Preferred mono- or polyglycosides in the present invention are (C 8 -C 18) alkyl mono- or polyglycosides and are compounds of formula ( I) in which: R 1 more particularly denotes a linear or branched, saturated or unsaturated alkyl group containing from 8 to 18 carbon atoms, t denotes a value ranging from 0 to 3 and more particularly still equal to 0, G can denote glucose, fructose or galactose, d preferably glucose. The degree of polymerization, that is to say the value of v in the formula (I), can range from 1 to 15, preferably from 1 to 4. The average degree of polymerization is more particularly between 1 and 2 and still more preferably from 1.1 to 1.5. The glycosidic linkages between the sugar units are of the 1-6 or 1-4 type, and preferably 1-4.

Examples of compounds of formula (I) are in particular caprylylglucoside, decylglucoside or caprylglucoside, laurylglucoside, cetearylglucoside, cocoglucoside and mixtures thereof. These preferred compounds of formula (I) may be the products sold by the company COGNIS under the names PLANTAREN® (600 CS / U, 1200 and 2000) or PLANTACARE® (818, 1200 and 2000). It is also possible to use the products sold by the company SEPPIC under the trade names TRITON CG 110 or ORAMIX CG 110 and TRITON CG 312 or ORAMIX® NS 10, the products sold by BASF under the name LUTENSOL GD 70 or those sold by the company. company CHEM Y under the name AGIO LK. It is also possible to use, for example, the alkyl (C 8 -C 16) -1, 4-polyglucoside in aqueous solution at 53%, marketed by COGNIS under the reference PLANTACARE® 818 UP.

Among the nonionic surfactants mentioned, it is preferred to use alkyl mono- or polyglycosides which are optionally oxyalkylenated. The nonionic surfactant (s) are present in the composition according to the invention in preferential proportions of from 0.1 to 30% by weight, more preferably from 0.5 to 20% by weight, better still from 1 to 12% by weight. , relative to the total weight of the composition. The nonionic surfactant (s) are present in the compositions according to the invention in such a way that the weight ratio between the amount of nonionic surfactant (s) on the one hand and the amount of cinnamon essential oil on the other hand is preferably greater than or equal to 1. In a preferred embodiment, the weight ratio between the amount of nonionic surfactant (s) on the one hand and the quantity of cinnamon essential oil on the other hand ranges from 1 to 50, and more preferably from 2 to 25. The composition according to the invention may also contain one or more additional surfactant (s). (s), different (s) nonionic surfactants according to the invention. This or these additional surfactant (s) may be chosen in particular from: - anionic surfactants, - amphoteric or zwitterionic surfactants, - cationic surfactants, - and mixtures thereof. Preferably, the composition according to the invention contains at least one additional surfactant, chosen from anionic surfactants.

The term "anionic surfactant" is understood to mean a surfactant comprising as ionic or ionizable groups only anionic groups. These anionic groups are preferably chosen from the groups -CO2H, -O2-, -SO3H, -SO3-, -OSO3H, -OSO3, -H2PO3, -HPO3, -PO32, -H2PO2, = HPO2, -HPO2, = PO2 -, = POH, = P0-. As examples of anionic surfactants that may be used in the composition according to the invention, mention may be made of alkyl sulphates, alkyl ether sulphates, alkylamido ether sulphates, alkylaryl polyether sulphates, monoglyceride sulphates, alkyl sulphonates, alkyl amide sulphonates and alkyl aryl sulphonates. , alpha-olefin-sulfonates, paraffin-sulfonates, alkylsulfosuccinates, alkylethersulfosuccinates, alkylamidesulfosuccinates, alkylsulfoacetates, acylsarcosinates, acylglutamates, alkylsulfosuccinamates, acylisethionates and N-acyltaurates, monoesters salts of alkyl and polyglycoside-polycarboxylic acids, acyllactylates, D-galactoside-uronic acid salts, alkyl ether-carboxylic acid salts, alkyl aryl ether carboxylic acid salts, alkyl acid salts amidoether carboxylic acids, and the corresponding non-salified forms of all these compounds, alkyl and acyl groups. all these compounds having from 6 to 24 carbon atoms and the aryl group denoting a phenyl group. These compounds may be oxyethylenated and then preferably comprise from 1 to 50 ethylene oxide units, and more preferably from 1 to 10 ethylene oxide units. The salts of C 6 -C 24 alkyl monoesters and of polyglycoside-polycarboxylic acids may be chosen from C 6 -C 24 alkyl polyglycoside-citrates, C 6 -C 24 alkyl polyglycoside-tartrates and polyglycoside-sulphosuccinates. C6-C24 alkyl. When the agent or the anionic surfactants are in the salt form, they may be chosen from alkali metal salts such as the sodium or potassium salt and preferably sodium salt, ammonium salts, amine salts and in particular aminoalcohols or alkaline earth metal salts such as magnesium salts. By way of example of aminoalcohol salts, mention may be made in particular of the salts of mono-, di- and triethanolamine, the salts of mono-, di- or triisopropanolamine and the salts of 2-amino-2-methyl-1-one. propanol, 2-amino-2-methyl-1,3-propanediol and tris (hydroxymethyl) amino methane. The alkali metal or alkaline earth metal salts and in particular the sodium or magnesium salts are preferably used.

Of the abovementioned anionic surfactants, it is preferred to use (C 6 -C 24) alkyl sulphates, C 6 -C 24 alkyl ether sulphates comprising from 2 to 50 ethylene oxide units, in particular in the form of alkali metal or ammonium salts. , aminoalcohols, and alkaline earth metals, or a mixture of these compounds.

In particular, it is preferred to use (C 12 -C 20) alkyl sulphates, C 12 -C 20 alkyl ether sulphates comprising from 2 to 20 ethylene oxide units, especially in the form of alkali metal salts, ammonium salts, aminoalcohol , and alkaline earth metals, or a mixture of these compounds. More preferably, it is preferred to use ammonium lauryl sulfate. When present, the amount of the anionic surfactant (s) preferably ranges from 2 to 40% by weight, more preferably from 5 to 30% by weight, relative to the total weight of the composition. The amphoteric or zwitterionic surfactant (s) that may be used in the present invention may be in particular derivatives of secondary or tertiary aliphatic amines, optionally quaternized, in which the aliphatic group is a linear or branched chain comprising from 8 to 22 carbon atoms, said amine derivatives containing at least one anionic group such as, for example, a carboxylate, sulfonate, sulfate, phosphate or phosphonate group. Mention may in particular be made of (C 8 -C 20) alkyl betaines, sulfobetaines, (C 8 -C 20) alkylamido (C 3 -C 8) alkyl betaines and (C 8 -C 20) alkylamido (C 6 -C 8) alkyl sulfobetaines. Among the optionally used quaternized secondary or tertiary aliphatic amine derivatives, as defined above, there may also be mentioned the following compounds of structures (Al) and (A2):

RaCONHCH2CH2N + (Rb) (Rc) (CH2000-) (Al)

in which: Ra represents a C10-C30 alkyl or alkenyl group derived from a RaCOOH acid preferably present in hydrolysed coconut oil, a heptyl, nonyl or undecyl group, Rb represents a beta-hydroxyethyl group, and Rc represents a carboxymethyl group; and Ra'CONHCH2CH2N (B) (B ') (A2)

wherein: B represents the group -CH2CH2OX ', B' represents the group - (CH2), Y ', with z = 1 or 2, X' represents the group -CH2COOH, CH2COOZ ', -CH2CH2COOH, -CH2CH2COOZ', or a hydrogen atom, Y 'represents the group -COOH, -COOZ', the group -CH2CHOHSO3H or the group -CH2CHOHSO3Z ', Z' represents an ion derived from an alkaline or alkaline earth metal, such as sodium, an ion ammonium or an ion derived from an organic amine, Ra, represents a C10-C30 alkyl or alkenyl group of a Ra'COOH acid preferably present in coconut oil or in hydrolyzed linseed oil, a group alkyl, especially C17 and its iso form, an unsaturated C17 group. These compounds are classified in the CTFA dictionary, 5th edition, 1993, under the names cocoamphodiacétate disodium, lauroamphodiacétate disodium, caprylamphodiacétate disodium, capryloamphodiacétate disodium, cocoamphodipropionate disodium, lauroamphodipropionate disodium, caprylamphodipropionate disodium, capryloamphodipropionate disodium, acid lauroamphodipropionic, cocoamphodipropionic acid. By way of example, mention may be made of cocoamphodiacetate marketed by Rhodia under the trade name MIRANOL® C2M concentrate. Among the amphoteric or zwitterionic surfactants mentioned above, use is preferably made of alkyl (C 8 -C 20) betaines such as cocobetaine, (C 8 -C 20) alkylamido (C 3 -C 8) alkyl betaines such as cocamidopropylbetaine, and their mixtures. More preferably, the amphoteric or zwitterionic surfactant (s) is (are) chosen from cocamidopropylbetaine and cocobetaine. When present, the amount of the amphoteric or zwitterionic surfactant (s) preferably ranges from 0.05 to 30% by weight, more preferably from 0.5 to 20% by weight, and more preferably from 1 to 10% by weight. , relative to the total weight of the composition.

The cationic surfactant (s) that may be used in the composition according to the invention comprise, for example, primary, secondary or tertiary fatty amine salts, optionally polyoxyalkylenated, quaternary ammonium salts, and mixtures thereof.

As quaternary ammonium salts, there may be mentioned, for example - those having the following general formula (II) + Rs / R10 / N

Wherein the groups R8 to R11, which may be the same or different, represent a linear or branched aliphatic group having from 1 to 30 carbon atoms, or an aromatic group such as aryl or alkylaryl, at least one of the groups R8 to R11 having from 8 to 30 carbon atoms, preferably from 12 to 24 carbon atoms. The aliphatic groups can comprise heteroatoms such as in particular oxygen, nitrogen, sulfur and halogens.

The aliphatic groups are, for example, chosen from C1-C30alkyl, C1-C30alkoxy, polyoxyalkylene (C2-C6), C1-C30alkylamide, (C12-C22) alkylamido (C2-C6) alkyl, ( C12-C22) acetate, and hydroxy-C1-C30 alkyl, X- is an anion selected from the group of halides, phosphates, acetates, lactates, alkyl (C1-C4) sulfates, alkyl (C1-C4) - or alkyl (C1 C4) arylsulphonates.

Of the quaternary ammonium salts of the formula (II), tetraalkylammonium chlorides, such as, for example, dialkyldimethylammonium or alkyltrimethylammonium chlorides in which the alkyl group comprises from about 12 to about 22 are preferred. carbon atoms, in particular behenyltrimethylammonium, distearyl dimethylammonium, cetyltrimethylammonium, benzyldimethylstearylammonium chlorides or else distearoylethylhydroxyethylmethylammonium methosulphate, dipalmitoylethylhydroxyethylammonium methosulphate or distearoylethylhydroxyethylammonium methosulphate, or else, finally, palmitylamidopropyltrimethylammonium chloride or stearamidopropyldimethyl (myristyl acetate) ammonium chloride sold under the name CERAPHYL® 70 by VAN DYK. the quaternary ammonium salts of imidazoline, for example those of the following formula (III): + R13 / R14

wherein R12 is alkenyl or alkyl having 8 to 30 carbon atoms, for example fatty acid derivatives of tallow, R13 represents a hydrogen atom, a C1-C4 alkyl group or an alkenyl or alkyl group having 8 to 30 carbon atoms, R14 represents a C1-C4 alkyl group, R15 represents a hydrogen atom, a C1-C4 alkyl group, X- is an anion chosen from the group of halides, phosphates, acetates, lactates , (C1-C4) alkyl sulfates, (C1-C4) alkyl or (C1-C4) alkyl arylsulfonates. Preferably, R12 and R13 denote a mixture of alkenyl or alkyl groups containing from 12 to 21 carbon atoms, for example fatty acid derivatives of tallow, R14 denotes a methyl group, R15 denotes a hydrogen atom. Such a product is for example sold under the name REWOQUAT® W 75 by the company REWO, / CH 2 CH 2 N (R 15) -CO-R 12 NNX - quaternary di- or triammonium salts, in particular of formula (IV) below: R17 R16-N- (CH2) N1 -R21 R18 R20 wherein R16 denotes an alkyl group having from about 16 to 30 carbon atoms optionally hydroxylated and / or interrupted by one or more oxygen atoms, R17 is selected from hydrogen or an alkyl group having from 1 to 4 carbon atoms or a group - (CH2) 3-N + (R16a) (R17a) (R18a), R16a, R17a, R18a, R18, R19, R20 and R21, same or different are selected from hydrogen or an alkyl group having 1 to 4 carbon atoms, and X- is an anion selected from the group of halides, acetates, phosphates, nitrates, (C1-C4) alkyl sulfates, alkyl (C1 -C4) - or (C1-C4) alkylarylsulfonates, in particular methylsulfate and ethylsulfate. Such compounds are, for example, the Finquat CT-P proposed by Finetex (Quaternium 89), the Finquat CT proposed by Finetex (Quaternium 75), the quaternary ammonium salts containing one or more ester functions, such as that, for example, those of the following formula (V): 2+ 2X- (IV) (CsH 2 O) z R25 (V) O) XR23 XO II R24 C (O-CrHr2 (OH) r1) yi (CtH12 (OH) Wherein: R22 is selected from C1-C6 alkyl groups and hydroxyalkyl or C1-C6 dihydroxyalkyl groups, R23 is selected from: II - R2s group c-, R27 hydrocarbon groups C1-C22 , linear or branched, saturated or unsaturated, - the hydrogen atom, R25 is chosen from: O II - the group R2s c- - R29 hydrocarbon groups C1-C6, linear or branched, saturated or unsaturated, - 1 hydrogen atom, R24, R26 and R28, which may be identical or different, are chosen from linear or branched, saturated or unsaturated C 7 -C 21 hydrocarbon-based groups, r, s and t, identical or different, are integers ranging from 2 to 20 6, r 1 and t 1, which are identical or different, are equal to 0 or 1, r 2 + r 1 = 2 r and t 1 + t 2 = 2 t, y is an integer equal to 1 at 10, x and z, which may be identical or different, are integers ranging from 0 to 10, X- is a simple or complex anion, organic or inorganic, provided that the sum x + y + z is from 1 to 15, that when x is 0 then R23 is R27 and when z is 0 then R25 is R29. The alkyl groups R22 may be linear or branched and more particularly linear. Preferably, R 22 denotes a methyl, ethyl, hydroxyethyl or dihydroxypropyl group, and more particularly a methyl or ethyl group.

Advantageously, the sum x + y + z is from 1 to 10. When R 23 is a hydrocarbon R 27 group, it may be long and have 12 to 22 carbon atoms, or short and have from 1 to 3 carbon atoms.

When R 25 is a hydrocarbon R 29 group, it preferably has 1 to 3 carbon atoms. Advantageously, R24, R26 and R28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C11-C21 hydrocarbon groups, and more particularly from linear or branched, saturated C11-C21 alkyl and alkenyl groups. or unsaturated. Preferably, x and z, which are identical or different, are equal to 0 or 1. Advantageously, y is equal to 1. Preferably, r, s and t, identical or different, are equal to 2 or 3, and even more particularly are equal to 2 The anion X- is preferably a halide, preferably chloride, bromide or iodide, a (C1-C4) alkyl sulphate, (C1-C4) alkyl or (C1-C4) alkyl aryl sulphonate. However, it is possible to use methanesulphonate, phosphate, nitrate, tosylate, an anion derived from an organic acid such as acetate or lactate or any other anion compatible with ammonium with an ester function. The anion X- is even more particularly chloride, methylsulfate or ethylsulfate. In the composition according to the invention, the ammonium salts of formula (VII) are used more particularly in which: R 22 denotes a methyl or ethyl group, x and y are equal to 1, z is equal to 0 or 1, - r, s and t are equal to 2, - R23 is chosen from: O - the group R26c- - the methyl, ethyl or C14-C22 hydrocarbon groups, - the hydrogen atom, - R25 is chosen among: II - the group R2s c-, - the hydrogen atom, - R24, R26 and R28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C13-C17 hydrocarbon groups, and preferably from linear or branched, saturated or unsaturated C13-C17 alkyl and alkenyl groups. Advantageously, the hydrocarbon groups are linear.

Examples of the compounds of formula (V) that may be mentioned include salts, especially diacyloxyethyldimethylammonium chloride, diacyloxyethyl-hydroxyethylmethylammonium chloride, monoacyloxyethyldihydroxyethylmethylammonium chloride, triacyloxyethylmethylammonium chloride, monoacyloxyethyl-hydroxyethyl-dimethylammonium chloride, and mixtures thereof. The acyl groups preferably have from 14 to 18 carbon atoms and come more particularly from a vegetable oil such as palm oil or sunflower oil. When the compound contains more than one acyl group, the latter groups may be identical or different.

These products are obtained, for example, by direct esterification of triethanolamine, triisopropanolamine, alkyldiethanolamine or alkyldiisopropanolamine optionally oxyalkylenated on fatty acids or mixtures of fatty acids of plant or animal origin, or by transesterification. of their methyl esters. This esterification is followed by quaternization using an alkylating agent such as an alkyl halide, preferably methyl or ethyl, a dialkyl sulphate, preferably methyl or ethyl sulphate. methyl methanesulfonate, methyl para-toluenesulfonate, glycol or glycerol chlorohydrin. Such compounds are, for example, sold under the names DEHYQUART® by the company HENKEL, STEPANQUAT® by the company STEPAN, NOXAMIUM® by the company CECA, REWOQUAT® WE 18 by the company REWO-WITCO.

The composition according to the invention may contain, for example, a mixture of quaternary ammonium mono-, di- and triester salts with a majority by weight of diester salts. It is also possible to use the ammonium salts containing at least one ester function described in US-A-4874554 and US-A-4137180. It is also possible to use behenoylhydroxypropyltrimethylammonium chloride, for example, proposed by KAO under the name Quartamin BTC 131.

Preferably, the ammonium salts containing at least one ester function contain two ester functions. Among the cationic surfactants present in the composition according to the invention, it is more particularly preferred to choose the salts of cetyltrimethylammonium, behenyltrimethylammonium, dipalmitoylethylhydroxyethylmethylammonium, and mixtures thereof, and more particularly behenyltrimethylammonium chloride, cetyltrimethylammonium chloride, methosulphate of dipalmitoylethylhydroxyethylammonium, and mixtures thereof. When the composition contains one or more cationic surfactants, their content preferably varies from 0.05 to 10% by weight, more preferably from 0.1 to 5% by weight, better still from 0.5 to 5% by weight, by weight. relative to the total weight of the composition. The composition according to the invention may also comprise one or more fatty substances, preferably non-silicone, different from the nonionic surfactants according to the invention. By "fatty substance" is meant an organic compound which is insoluble in water at ordinary temperature (25 ° C.) and at atmospheric pressure (760 mmHg, ie 1.013 × 10 5 Pa), that is to say with a solubility of less than 5% and preferably less than 1%, even more preferably less than 0.1%. The fatty substances generally have in their structure at least one hydrocarbon chain comprising at least 6 carbon atoms, and preferably at least 8 carbon atoms, and generally less than 500, more particularly less than 100 carbon atoms. In addition, the fatty substances are generally soluble in organic solvents under the same conditions of temperature and pressure, such as, for example, chloroform, ethanol, benzene, liquid petrolatum or decamethylcyclopentasiloxane. By "non-silicone fatty substance" is meant a fatty substance whose structure does not comprise more than one silicon atom, and preferably no silicon atom.

The fatty substances that can be used in the composition according to the invention are not polyoxyalkylenated or polyglycerolated. The fatty substances are preferably chosen from hydrocarbons, fatty alcohols, non-salified fatty acids, fatty esters, fatty ethers, non-silicone waxes and mixtures thereof.

They can be liquid or non-liquid at room temperature and at atmospheric pressure. The liquid fatty substances of the invention preferably have a viscosity of less than or equal to 2 Pa.s, more preferably less than or equal to 1 Pa.s, and more preferably less than or equal to 0.1 Pa.s at a temperature of 25 ° C. C and at a shear rate of 1 s -1. By liquid hydrocarbon is meant a hydrocarbon composed solely of carbon atoms and hydrogen, liquid at ordinary temperature (25 ° C.) and at atmospheric pressure (760 mmHg, ie 1.013 × 10 5 Pa), in particular of mineral origin or vegetable, preferably of plant origin. More particularly, the liquid hydrocarbons are chosen from: linear or branched C6-C16 alkanes, which may be cyclic. By way of examples, mention may be made of hexane, undecane, dodecane, tridecane and isoparaffins such as isohexadecane, isododecane and isodecane; linear or branched hydrocarbons of animal mineral origin or synthetic, of more than 16 carbon atoms, such as paraffin oils, volatile or not, petroleum jelly, vaseline oil, squalane, polydecenes, polyisobutenes optionally hydrogenated such as in particular that sold under the brand Parléam ® by NOF CORPORATION. In a preferred variant, the liquid hydrocarbon or hydrocarbons are chosen from paraffin oils, volatile or otherwise, and petrolatum oil. By liquid fatty alcohol is meant a non-glycerolated and non-oxyalkylenated fatty alcohol, liquid at ordinary temperature (25 ° C.) and at atmospheric pressure (760 mmHg, ie 1.013 × 10 5 Pa).

Preferably, the liquid fatty alcohols of the invention comprise from 8 to 50 carbon atoms. The liquid fatty alcohols of the invention can be saturated or unsaturated. Saturated liquid fatty alcohols are preferably branched.

They may optionally comprise in their structure at least one aromatic cycle or not. Preferably, they are acyclic. More particularly, the liquid saturated fatty alcohols of the invention are chosen from octyldodecanol, isostearyl alcohol and 2-hexyldecanol.

Octyldodecanol is particularly preferred. The unsaturated liquid fatty alcohols have in their structure at least one double or triple bond, and preferably one or more double bonds. When more than one double bond is present, it is preferably 2 or 3 and may or may not be conjugated. These unsaturated fatty alcohols can be linear or branched. They may optionally comprise in their structure at least one aromatic cycle or not. Preferably, they are acyclic. More particularly, the liquid unsaturated fatty alcohols of the invention are chosen from oleic (or oleyl) alcohol, linoleic (or linoleyl) alcohol, linolenic (or linolenyl) alcohol and undecylenic alcohol. Oleyl alcohol is particularly preferred.

The fatty acids may be chosen from acids of formula RCOOH, where R is a saturated or unsaturated group, linear or branched, preferably containing from 7 to 39 carbon atoms. Preferably, R is a C7-C29 alkyl or C7-C29 alkenyl group, more preferably a C12-C24 alkyl or C12-C24 alkenyl group. R may be substituted with one or more hydroxy groups and / or one or more carboxyl groups. The fatty acid may in particular be chosen from lauric acid, tridecanoic acid, myristic acid, palmitic acid, oleic acid, linoleic acid, and stearic acid. These fatty acids must be non-salified so as not to give birth to soaps that are generally water-soluble or water-dispersible. By liquid fatty esters is meant an ester derived from a fatty acid and / or a fatty alcohol, liquid at ordinary temperature (25 ° C.) and at atmospheric pressure (760 mmHg, ie 1.013 × 10 5 Pa). The esters are preferably the liquid esters of linear or branched C 1 -C 26 saturated or unsaturated aliphatic mono- or polyacids and linear or branched C 1 -C 26 saturated or unsaturated aliphatic mono- or polyalcohols, the total number of the carbon atoms of the esters being greater than or equal to 10. Preferably, for the monoalcohol esters, at least one of the alcohol or the acid from which the esters of the invention are derived is branched.

Among monoesters of monoacids and monoalcohols, mention may be made of ethyl and isopropyl palmitates, alkyl myristates such as isopropyl or ethyl myristate, isocetyl stearate, isononanoate of 2 ethylhexyl, isodecyl neopentanoate, isostearyl neopentanoate, and isononyl isononoate. It is also possible to use esters of C 4 -C 22 di- or tricarboxylic acids and of C 1 -C 22 alcohols and esters of mono-, di- or tricarboxylic acids and of non-sugar alcohols di-, tri- , pentahydroxylated C4-C26 tetraou.

Mention may especially be made of diethyl sebacate, diisopropyl sebacate, di (2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, di-di-adipate and the like. (2-ethylhexyl), diisostearyl adipate, di (2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, trisostearyl citrate, glyceryl trilactate, glyceryl trioctanoate, citrate of trioctyldodecyl, trioleyl citrate, neopentyl glycol diheptanoate, and diethylene glycol diisononate.

Finally, it is also possible to use natural or synthetic esters of mono-, di- or triacids with glycerol. Among these, we can mention vegetable oils. As vegetable oils or synthetic triglycerides, used in the composition of the invention as liquid fatty esters, there may be mentioned for example: triglyceride oils of plant or synthetic origin, such as liquid triglycerides of fatty acids having from 6 to 30 carbon atoms, such as the triglycerides of heptanoic or octanoic acids or, for example, sunflower, corn, soya, squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor oil, avocado, olive, rapeseed, copra, wheat germ, sweet almond, apricot, safflower, bancoulan nut , camellina, tamanu, babassu and pracaxi, the triglycerides of caprylic / capric acids, such as those sold by the company STEARINERIES DUBOIS or those sold under the names Miglyol® 810, 812 and 818 by the company DYNAMIT NOBEL, the oil jojoba, shea butter oil ed. Preferably, as esters according to the invention, liquid fatty esters derived from monoalcohols will be used.

Myristate or isopropyl palmitate are particularly preferred. The liquid fatty ethers are chosen from liquid dialkyl ethers such as dicaprylyl ether.

The fatty substance (s) used in the composition according to the invention may also be non-liquid fatty substances at ambient temperature (25 ° C.) and at atmospheric pressure (760 mmHg, ie 1.013 × 10 5 Pa).

The term "non-liquid" preferably means a solid compound or a compound having a viscosity greater than 2 Pa.s at a temperature of 25 ° C. and at a shear rate of 1 s -1. More particularly, non-liquid fatty substances are chosen from fatty alcohols, fatty acid esters and / or fatty alcohol esters, non-silicone waxes and fatty, non-liquid and preferably solid ethers. The non-liquid fatty alcohols that are suitable for carrying out the invention are more particularly chosen from saturated or unsaturated alcohols, linear or branched, containing from 8 to 30 carbon atoms. For example, behenyl alcohol, cetyl alcohol, stearyl alcohol and mixtures thereof (for example, cetylstearyl alcohol) may be mentioned. As regards the fatty acid esters and / or non-liquid fatty alcohols, there may be mentioned in particular solid esters derived from C 9 -C 26 fatty acids and C 9 -C 26 fatty alcohols. The solid fatty esters used in the composition of the invention are preferably saturated fatty acid esters, and in particular saturated carboxylic acid esters having at least 10 carbon atoms, and saturated fatty monoalcohols containing at least 10 atoms. of carbon. Saturated acids or monoalcohols may be linear or branched. The saturated carboxylic acids preferably comprise from 10 to 30 carbon atoms, and more particularly from 12 to 24 carbon atoms. They can be optionally hydroxylated. The saturated fatty monoalcohols preferably comprise from 10 to 30 carbon atoms, and more particularly from 12 to 24 carbon atoms. Preferably, the fatty esters are chosen from myristyl, cetyl and stearyl myristates, myristyl, cetyl and stearyl palmitates, myristyl, cetyl and stearyl stearates, behenyl benenate, and mixtures thereof. . The non-silicone wax or waxes are chosen in particular from carnauba wax, candelila wax, alfa wax, paraffin wax, ozokerite, vegetable waxes such as olive wax, rice wax, hydrogenated jojoba wax or absolute waxes of flowers such as the essential wax of blackcurrant sold by the company BERTIN (France), animal waxes such as beeswax, or modified beeswaxes (cerabellina) and ceramides.

Ceramides or ceramide analogues, such as glycoceramides that can be used in the compositions according to the invention, are known per se and are natural or synthetic molecules that can meet the following general formula (VI): R 3 CHOH-CH-CH 2 OR 2 NH C = 0 1 R1 (VI)

in which: R1 denotes a linear or branched, saturated or unsaturated, alkyl group derived from C14-C30 fatty acids, this group possibly being substituted by a hydroxyl group in the alpha position, or an omega-hydroxyl group, esterified with a saturated or unsaturated C16-C30 fatty acid, R2 denotes a hydrogen atom or a (glycosyl), (galactosyl) m or sulphogalactosyl group, in which n is an integer ranging from 1 to 4 and m is an integer varying from 1 to 8, - R3 denotes a C15-C26 hydrocarbon group, saturated or unsaturated in the alpha position, this group possibly being substituted by one or more C1-C14 alkyl groups, it being understood that in the case of ceramides or natural glycoceramides, R3 may also designate a C15-C26 alpha-hydroxyalkyl group, the hydroxyl group optionally being esterified with a C16-C30 alpha-hydroxy acid.

Preferred ceramides in the context of the present invention are those described by DOWNING in Arch. Dermatol, Vol. 123, 1381-1384, 1987, or those described in French patent FR 2,673,179. The most preferred ceramides or ceramides according to the invention are the compounds for which R 1 denotes a saturated or unsaturated alkyl derived from C 16 fatty acids. -C22, R2 denotes a hydrogen atom and R3 denotes a linear group saturated with C15. Such compounds are, for example, N-linoleoyldihydrosphingosine, N-oleoyldihydrosphingosine, N-palmitoyldihydrosphingosine, N-stearoyldihydrosphingosine, N-behenoyldihydrosphingosine, or mixtures thereof. Even more preferably, the ceramides for which R 1 denotes a saturated or unsaturated alkyl group derived from fatty acids, R 2 denotes a galactosyl or sulphogalactosyl group and R 3 denotes a -CH =CH- (CH 2) 12 -CH 3 group. Other waxes or waxy raw materials that can be used according to the invention are in particular marine waxes, such as those sold by SOPHIM under the reference M82, and polyethylene or polyolefin waxes in general.

The non-liquid fatty ethers are chosen from dialkyl ethers and in particular dicetyl ether and distearyl ether, alone or as a mixture. Preferably, the fatty substances according to the invention are chosen from fatty alcohols, liquid fatty ethers, triglyceride oils, preferably of plant origin, and mixtures thereof. The at least one fatty substance may be present in a content ranging from 0.1 to 20% by weight, preferably from 0.2 to 15%, better still from 0.5 to 10% by weight, relative to the total weight of the composition according to the invention.

According to a preferred embodiment, the composition according to the invention comprises one or more fatty alcohols and one or more triglycerides, preferably of plant origin. The fatty alcohol or alcohols may be present in a content ranging from 1 to 15% by weight, preferably from 3 to 10% by weight, relative to the total weight of the composition. The triglyceride or triglycerides of plant origin may be present in a content ranging from 0.05 to 5% by weight, preferably from 0.5 to 2% by weight, relative to the total weight of the composition.

The preferred fatty alcohol is stearyl alcohol and mixtures thereof. The preferred liquid fatty ether is dicaprylyl ether. The preferred vegetable triglycerides are jojoba oil and olive oil. Preferably, the composition according to the invention is non-silicone.

For the purposes of the invention, the term "non-silicone composition" means a composition containing less than 1% by weight of silicone compound (s), preferably less than 0.5% by weight of silicone compound (s). (s), more preferably less than 0.3% by weight of silicone compound (s), and better still less than 0.1% by weight of silicone compound (s), relative to the total weight of the composition. Preferably, the composition is completely free of silicone compound (s). For the purposes of the invention, the term "silicone compound" means a compound containing at least two silicon atoms.

The composition according to the invention may further comprise one or more thickening agents. For the purposes of the present invention, the term "thickening agent" is understood to mean an agent which, introduced at 1% by weight in an aqueous or aqueous-alcoholic solution containing 30% of ethanol, and at pH = 7, makes it possible to attain a viscosity. at least 100 mPa.s (100 cPs), preferably at least 500 mPa.s (500 cPs), at 25 ° C and at a shear rate of 1 s -1. This viscosity can be measured using a cone / plane viscometer (Haake R600 Rheometer or the like).

The thickening agent (s) may be chosen from fatty acid amides obtained from C 10 -C 30 carboxylic acid, such as coconut acid monoisopropanol-, diethanol- or monoethanolamide, and acid monoethanolamide. oxyethylenated alkyl ether carboxylic, preferably nonionic cellulosic thickeners, such as hydroxyethylcellulose, hydroxypropylcellulose and carboxymethylcellulose, guar gum and its nonionic derivatives such as hydroxypropylguar, gums of microbial origin, such as xanthan gum, scleroglucan gum, crosslinked homopolymers and copolymers based on acrylic acid or methacrylic acid or acrylamidopropanesulfonic acid, and associative polymers, in particular acrylic or polyurethane polymers, as described below. The associative polymer or polymers that can be used according to the invention are water-soluble or water-dispersible polymers capable, in an aqueous medium, of reversibly associating with each other or with other molecules. Their chemical structure comprises hydrophilic zones, and hydrophobic zones characterized by the presence of at least one fatty chain preferably comprising from 10 to 30 carbon atoms. The associative polymer or polymers that may be used according to the invention may be of anionic, cationic, amphoteric or nonionic type, such as, for example, the polymers sold under the names Pemulen Tri or TR2 by the company Goodrich, whose INCI name is Acrylates / C10. -30 Alkyl Acrylate Crosspolymer, SALCARE SC90 by the company CIBA, ACULYN 22, 28, 33, 44 or 46 by the company ROHM & HAAS and ELFACOS T210 and T212 by the company AKZO. Among the thickening agents mentioned, use is preferably made of nonionic cellulosic thickeners, such as hydroxyethylcellulose, associative polyurethanes and xanthan gum. Preferably, the composition according to the invention may comprise from 0.01 to 20% by weight, and more preferably from 0.1 to 10% by weight of thickening agent (s), relative to the total weight of the composition. The composition according to the invention may be aqueous or anhydrous. By "anhydrous" is meant a composition without added water, that is to say a composition whose water possibly present comes only from the water of crystallization or adsorption of the raw materials. In any case, an anhydrous composition contains less than 5% by weight of water and better still less than 1% by weight of water, relative to the total weight of the composition.

Preferably, the composition according to the invention is aqueous, and comprises at least 30% by weight of water, and preferably at least 50% by weight of relative to the total weight of the composition. The composition according to the invention may also contain one or more organic solvents which are liquid at room temperature (25 ° C.) and at atmospheric pressure (760 mmHg, ie 1.013 × 10 5 Pa). Preferably, the liquid organic solvent (s) is (are) chosen from C1-C4 lower alcohols, such as ethanol, isopropanol, tert-butanol or n-butanol, polyols such as propylene glycol and glycerol, and polyol ethers, and mixtures thereof.

When the composition of the invention is aqueous, its pH is generally between 2 and 9, and in particular between 3 and 8. Preferably, the pH is less than 7. Even more preferentially, it ranges from 3 to 6. can be adjusted to the desired value by means of acidifying or alkalizing agents usually used in cosmetics for this type of application or even using conventional buffer systems. Among the acidifying agents, there may be mentioned, for example, the organic acids already mentioned above or the mineral acids. By "mineral acid" is meant any acid derived from a mineral compound. Among the mineral acids, mention may be made of hydrochloric acid, orthophosphoric acid, sulfuric acid, sulphonic acids and nitric acid.

It will be possible to use inorganic or organic acids such as hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids such as acetic acid, tartaric acid, citric acid, lactic acid, sulfonic acids. Among the alkalinizing agents, mention may be made, for example, of ammonia, alkaline carbonates, alkanolamines such as mono-, di- and triethanolamines and their derivatives, sodium or potassium hydroxides and compounds of the following formula: embedded image in which W is a propylene residue optionally substituted by a hydroxyl group or a C 1 -C 4 alkyl group, Ra, Rb, Rc and Rd, which may be identical or different, represent a hydrogen atom, C1-C4 alkyl or C1-C4 hydroxyalkyl. Preferably, the pH adjusting agents may be chosen from alkaline agents such as ammonia, monoethanolamine, diethanolamine, triethanolamine, 1,3-propanediamine, an alkaline hydroxide, such as 2-amino 2-methyl-1-propanol or acidifying agents such as phosphoric acid or hydrochloric acid. The compositions according to the invention may also contain one or more additives chosen from ceramides, vitamins and pro-vitamins, including panthenol, water-soluble and fat-soluble sunscreens, silicone or non-silicone filters, pearlescent and opacifying agents and sequestering agents. conditioning agents, solubilizing agents, antioxidants, anti-dandruff agents, antiseborrhoeic agents, hair loss and / or regrowth agents, penetrating agents, perfumes, peptizers and preservatives, or any other additive conventionally used in the cosmetic field.

These additives may be present in the composition according to the invention in an amount ranging from 0 to 20% by weight relative to the total weight of the composition. Those skilled in the art will take care to choose these optional additives and their amounts so that they do not adversely affect the properties of the compositions of the present invention. The compositions according to the invention may be present, in a nonlimiting manner, in the form of shampoos, care to be applied if necessary before and / or after shampooing or a coloring or a permanent, of coloring products, of discoloration, of permanent, straightening, styling. According to a first preferred embodiment, the composition according to the invention is in the form of a shampoo. In this case, it advantageously contains: an essential oil of cinnamon, one or more nonionic surfactant (s), preferably in a content of 0.1 to 30% by weight, more preferably from 0.5 to 20% by weight, better still from 1 to 12% by weight, relative to the total weight of the composition, - one or more anionic surfactant (s), preferably in a certain from 2 to 40% by weight, more preferably from 5 to 30% by weight, relative to the total weight of the composition, and - water. According to a second preferred embodiment, the composition according to the invention is in the form of hair care. In this case, it advantageously contains: an essential oil of cinnamon, one or more nonionic surfactant (s), preferably in a content of 0.1 to 30% by weight, more preferably from 0.5 to 20% by weight, better still from 1 to 12% by weight, relative to the total weight of the composition, - one or more fatty alcohol (s), preferably in a content of 1 to 15% by weight preferably 3 to 10% by weight, relative to the total weight of the composition, - one or more triglycerides (s) of vegetable origin, preferably in a content of 0.05 to 5% by weight, preferably 0 , 5 to 2% by weight, relative to the total weight of the composition, and - water.

The present invention also relates to a cosmetic hair treatment method, which consists in applying to the hair an effective amount of a composition as described above. This application may or may not be followed by rinsing.

When the application of the composition is followed by rinsing, the exposure time of the composition on the keratin materials ranges from a few seconds to 60 minutes, better from 5 seconds to 30 minutes, even better from 10 seconds to 10 minutes. Whether rinsed or non-rinsed mode, the application of the composition can be done with or without heat. The heater may be a hair dryer, a helmet, a round or flat iron. The heating temperature can be between 40 and 220 ° C. The present invention also relates to the use of an essential oil of cinnamon to improve the smoothing and / or disentangling of hair. Preferably, the compositions according to the invention are used as shampoo for washing and conditioning the hair, or as hair care products.

The following examples serve to illustrate the invention without being limiting in nature.

EXAMPLES In the following examples, all the quantities are indicated as a percentage by weight of active material relative to the total weight of the composition. EXAMPLE 1 Compositions According to the Invention

The shampoo composition A according to the invention was prepared from the compounds indicated in the table below. Cinnamon bark essential oil (1) 0.5 Cocoglucoside (2) 5.4 Ammonium lauryl sulfate (3) 10.4 Water qs 100 (1) marketed under the trade name HE CANNELLE CEYLAN ECORCE BIO (INCI name 'Cinnamomum Zeylanicum Bark Oil ") by the company ORGAROME. 10 (2) marketed under the name PLANTACARE 818 UP by the company COGNIS. (3) marketed under the name Empicol AL 30 / FL by the company HUNTSMAN.

The care composition B according to the following invention was prepared from the compounds indicated in the table below. Cinnamon bark essential oil (1) 1 Cetearyl alcohol and cetearyl glucoside 5 (80/20 by weight) (4) Cetearyl alcohol 5 Jojoba oil (5) 1 Water 88 (1) marketed under the trade name HE CANNELLE CEYLAN ECORCE BIO (INCI name "Cinnamomum Zeylanicum Bark Oil") by the company ORGAROME. (4) marketed under the name Montanov 68 by the company SEPPIC.5 (5) marketed under the INCI name "Simmondsia Chinensis Oil".

Example 2 Effect of Cinnamon Essential Oil on Hair Smoothing

The sliding bed wicks on wicks in wet conditions allows to appreciate the smooth feel of the deposit. A movable wick, fixed on a sliding bench, is driven in a horizontal rectilinear motion between two other fixed locks. The force to be exerted to slide the wick is measured using an electronic gauge connected to the drive arm. The lower the sliding force, the better the smoothing properties. 0.1 g of cinnamon essential oil was applied to three strands of 1 g bleached hair. Following a one-minute exposure time, these wicks are placed in a permanent channel, where they are soaked in 10 mL of distilled water and are then dewatered. The wicking measurements on wicks show that, after the application of the cinnamon essential oil on the strands of hair, the sliding force of the streaks discolored with respect to each other is 0.97 N, whereas it is 1.2 N before the application of the essential oil. In addition, even when it is present in excess, the essential oil of cinnamon has no sticky effect.

Claims (15)

REVENDICATIONS1. Cosmetic composition comprising an essential oil of cinnamon and one or more nonionic surfactants. 2. Composition according to claim 1, characterized in that the essential oil of cinnamon is present in proportions of 0.01 to 20% by weight, more preferably from 0.05 to 10% by weight, better still of 0.1. at 5% by weight, relative to the total weight of the composition. 3. Composition according to any one of the preceding claims, characterized in that the nonionic surfactant (s) are chosen from: alcohols, alpha-diols and (C 1 -C 20) alkyl phenols, these compounds being polyethoxylated, polypropoxylated and / or polyglycerolated, and having at least one fatty chain preferably comprising from 8 to 18 carbon atoms, the number of ethylene oxide and / or propylene oxide groups preferably ranging from 2 to 50 and the number of groups glycerol preferably ranging from 2 to 30, copolymers of ethylene oxide and propylene oxide, fatty acid and sorbitan esters optionally oxyethylenated, esters of fatty acids and of sucrose, esters of fatty acids polyoxyalkylenes, alkyl mono- or polyglycosides optionally oxyalkylenated, alkylglucoside esters, derivatives of N-alkylglucamine and N-acyl-methylglucamine, aldobionamides, amine oxides. 4. Composition according to the preceding claim, characterized in that the nonionic surfactant or surfactants are chosen from alkyl mono- or polyglycosides optionally oxyalkylenated. 5. Composition according to any one of the preceding claims, characterized in that the nonionic surfactant or surfactants are present in proportions of 0.1 to 30% by weight, more preferably 0.5 to 20% by weight, better from 1 to 12% by weight, relative to the total weight of the composition. 6. Composition according to any one of the preceding claims, characterized in that the weight ratio between the amount of agent (s) surfactant (s) nonionic (s) on the one hand and the amount of essential oil of cinnamon on the other hand is greater than or equal to 1, preferably ranges from 1 to 50, more preferably from 2 to 25. 7. Composition according to any one of the preceding claims, characterized in that it further comprises one or more anionic surfactants. 8. Composition according to the preceding claim, characterized in that the anionic surfactant or surfactants are chosen from alkyl sulphates, alkyl ether sulphates, alkylamido ether sulphates, alkylaryl polyether sulphates, monoglyceride sulphates, alkyl sulphonates, alkyl amide sulphonates and alkyl aryl sulphonates. alpha-olefin sulfonates, paraffinsulfonates, alkylsulfosuccinates, alkylethersulfosuccinates, alkylamide-sulfosuccinates, alkylsulfoacetates, acylsarcosinates, acylglutamates, alkylsulfosuccinamates, acylisethionates and N-acyltaurates, alkyl monoester salts and polyglycoside-polycarboxylic acids, acyllactylates, D-galactoside-uronic acid salts, alkyl ether-carboxylic acid salts, alkyl aryl ether carboxylic acid salts, alkyl amidoether acid salts. -carboxylic, preferably from (C12-C20) alkyl sulphates, (C12-C20) alkyl ethersul fates comprising from 2 to 20 ethylene oxide units, and more preferably from ammonium lauryl sulfate. 9. Composition according to any one of claims 7 and 8, characterized in that the anionic surfactant (s) are present in proportions of 2 to 40% by weight, more preferably 5 to 30% by weight, relative to total weight of the composition. 10. Composition according to any one of the preceding claims, characterized in that it further comprises one or more fatty substances, preferably non-silicone. 11. Composition according to the preceding claim, characterized in that the one or more fatty substances are chosen from fatty alcohols, liquid fatty ethers, triglyceride oils, preferably of plant origin, and mixtures thereof, and preferably from stearyl alcohol and mixtures thereof, dicaprylyl ether, jojoba oil, olive oil, and mixtures thereof. 12. Composition according to any one of claims 10 and 11, characterized in that the fat or fats are present in a content ranging from 0.1 to 20% by weight, preferably from 0.2 to 15% by weight. more preferably from 0.5 to 10% by weight, relative to the total weight of the composition. 13. Process for the cosmetic treatment of keratinous substances, in particular human keratinous fibers such as the hair, characterized in that it consists in applying to the keratin materials a composition according to any one of Claims 1 to 12, then in carrying out or not a rinse after a possible exposure time, in the presence or absence of heat. 14. Use of an essential oil of cinnamon to improve the smoothing and / or disentangling of hair. The use of claim 14, wherein the cinnamon essential oil is employed in a composition according to any one of claims 1 to 12.