FR3113594A1 - Composition for cleaning keratin fibers and its use - Google Patents

Abstract

Composition for cleaning keratin fibers and its use The present invention relates to a composition for cleaning keratin fibers, comprising (A) at least one cationic polymer, comprising (A-1) a cationic cellulose copolymer or a derivative of cellulose grafted with a water-soluble quaternary ammonium monomer, optionally together with (A-2) an additional cationic polymer; (B) a surfactant comprising (B-1) at least one anionic surfactant, and/or (B-2) at least one amphoteric surfactant; (C) at least one thickening agent; and (D) optionally, at least one silicone oil. Figure for abstract: NONE

Description

Composition for cleaning keratin fibers and its use

The present invention relates to a composition for cleaning keratin fibres, in particular the hair. The invention also relates to a process for cleaning keratin fibres, in particular the skin, the scalp and/or the hair, using the composition of the present invention.

Context

Keratin fibers are widely present on the surface of the human body, for example, especially in the hair. Many people have long sought to clean the keratin fiber, in order to feel comfortable in everyday life and at work. Various products are developed to meet a person's keratin fiber cleansing requirements, many of which are used to provide both cleansing and some other effects.

Keratin fibers, especially the hair, are cleaned and treated to improve their appearance, color, style, etc. Thus, various cleansing and/or conditioning components are added directly into the shampoo. Further, in addition to cleaning and conditioning functions, some other properties are also important to attract consumers, such as special fragrance, good appearance, smooth feeling, ease of use, and the like. For example, many consumers like the smooth feel of the hair instead of the tangling of the strands.

One of the objects of the present invention is therefore a cleansing composition for cleaning keratin fibers comprising:

at least one cationic polymer, comprising a cationic cellulose copolymer or a cellulose derivative grafted with a water-soluble quaternary ammonium monomer, optionally accompanied by an additional cationic polymer;

at least one anionic surfactant, and/or at least one amphoteric surfactant;

at least one thickening agent; And

optionally, at least one silicone oil.

The composition according to the present invention is particularly useful for a shampoo product.

The present invention also relates to a process for cleaning keratin fibres, in particular keratin fibers on the surface of the body, in particular the hair, using the cleaning composition according to the invention.

The present invention therefore proposes the use of the composition of the present invention for cleaning keratin fibres.

embodiments of the ' invention

Throughout the description, including the claims, the expression "comprising a" must be understood as being synonymous with "comprising at least one", unless otherwise stated. In addition, the expression "at least one" used in the present description is equivalent to the expression "one or more".

Throughout the specification, including the claims, an embodiment defined by "comprising" or the like is to be understood to encompass a preferable embodiment defined by "consisting essentially of" and a preferable embodiment defined by "consisting in ".

Outside the working examples, or unless otherwise indicated, all numbers expressing amounts of components and/or reaction conditions should be understood as being modified in all cases by the term "about", the meaning of which is conventionally known in art, for example, to within 10% of the stated number (eg, "about 10%" means 9% - 11% and "about 2%" means 1.8% - 2.2%).

Throughout the description, including the claims, the "keratin fiber" according to the present invention is preferably the hair.

In the application, unless otherwise stated, the contents, parts and percentages are expressed on a weight basis.

The present invention relates to a composition for cleaning keratin fibres, comprising:

(A) at least one cationic polymer, comprising (A-1) a cationic cellulose copolymer or a cellulose derivative grafted with a water-soluble quaternary ammonium monomer, optionally with (A-2) an additional cationic polymer;

(B) at least one active agent comprising (B-1) at least one anionic surfactant, and/or (B-2) at least one amphoteric surfactant;

(C) at least one thickening agent; And

(D) optionally, at least one silicone oil.

The present invention therefore makes it possible to use the composition of the present invention to clean the keratin fibers on the surface of the body, in particular the hair.

The present invention also provides for the use of the fatty acid-ester mixture to clean keratin fibers on the surface of the body, in particular the hair.

The present invention also relates to a process for cleaning keratin fibres, in particular keratin fibers from the surface of the body, in particular the hair, using the cleaning composition according to the invention.

Other characteristics and advantages of the invention will appear more clearly on reading the description and the examples which follow.

Cationic polymer (A)

The composition of the invention comprises at least one cationic polymer.

The term “cationic polymer” is intended to denote any polymer comprising cationic groups and/or groups which can be ionized into cationic groups. Preferably, the cationic polymer is hydrophilic or amphiphilic. The preferred cationic polymers are chosen from those which contain units comprising primary, secondary, tertiary and/or quaternary amine groups which may either form part of the main polymer chain or be carried by a side substituent directly linked to it. Preferably, the present composition may comprise cationic polysaccharides, in particular cationic celluloses and cationic galactomannan gums. Within the meaning of the invention, the present composition preferably comprises cationic celluloses.

Cationic polymer (A-1)

Among the cationic celluloses, the present composition comprises cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer, which are described, for example, in US Pat. may mention hydroxyalkyl celluloses, for example hydroxymethyl-, hydroxyethyl- or hydroxypropyl celluloses grafted, in particular, with a salt of methacryloylethyltrimethylammonium, methacrylamidopropyltrimethylammonium, dimethyldiallylammonium or hydroxypropyltrialkylammonium, for example 2-hydroxypropyltrimethylammonium chloride. The commercial products corresponding to this definition are more particularly the products sold under the names Celquat® L 200 and Celquat® H 100 by the company National Starch, Polyquaternium-10 (ether of hydroxyethylcellulose-2-hydroxypropyltrimethylammonium chloride) such as the product sold as Polyquta® 400KC by KCI Company, Polyquaternium-6 (polydiallyl dimethyl ammonium chloride) such as the product sold as Merquat ^™ 100 polymer by Nalco. Polyquaternium polymers, among others, are particularly preferred, for example Polyquaternium-7, 11, 15, 16, 22, 39, 47, 55, 67 and 76.

The cationic polymer (A-1) may be present in the composition according to the present invention in an amount of 0.01 to 5% by weight of cationic polymer(s), preferably from 0.05 to 1% by weight. weight, or preferably from 0.1 to 0.6% by weight, based on the total weight of the composition.

Cationic polymer (A-2)

Cationic galactomannan gums can be used as an additional cationic polymer.

Cationic galactomannan gums are described, for example, in US3,589,578 and US4,031,307, and mention may be made of guar gums comprising cationic trialkylammonium groups. For example, guar gums modified with a 2,3-epoxypropyltrimethylammonium salt (eg, the chloride) are used. Such products are notably sold under the names JAGUAR C13 S, JAGUAR C 15, JAGUAR C 17 or JAGUAR C162. Without being limited to any known theory, it is believed that within the meaning of the present invention, hydroxypropylguar hydroxypropyltrimonium chloride is preferably used, which can provide a particular cleaning sensation, for example, JAGUAR C162 from the company Rhodia ( INCI: hydroxypropyl guar hydroxypropyltrimonium chloride).

The cationic polymer (A-2) may be present in the composition according to the present invention in an amount of 0.01 to 5% by weight of cationic polymer(s), preferably from 0.1 to 2% by weight. weight, or preferably from 0.1 to 0.6% by weight, based on the total weight of the composition.

According to an embodiment of the present invention, a combination of the cationic polymer (A-1) and the cationic polymer (A-2) can be present in the composition according to the present invention, preferably in an amount of 0.02% to 10% by weight, such as from 0.05% to 2% by weight, or from 0.1% to 1% by weight, based on the total weight of the composition.

Surfactant (B)

The composition according to the present invention comprises at least one surfactant, in particular (B-1) at least one anionic surfactant, and/or (B-2) at least one amphoteric surfactant.

Anionic surfactant (B-1)

According to one embodiment of the invention, the composition according to the present invention comprises at least one anionic surfactant (B-1).

The term “anionic surfactant” is intended to designate an amphiphilic compound comprising a hydrophobic part and a hydrophilic part, the hydrophilic part bearing as ionic or ionizable group only an anionic group with a generally metallic cationic counterion (alkali metal, such as Na or K) or ammonium, capable of dissociating to give anions in aqueous solution.

More particularly, the anionic group of the anionic surfactant belongs to the group chosen from: C(O)OH, -C(O)O-, -SO3H, -S(O) _2O- , -OS(O) _2OH, -OS( O)2O-, -P(O)OH2, -P(O)2O-, -P(O)O2-, -P(OH) _2, =P(O)OH, -P(OH)O-, =P(O)O-, =POH, =PO-, the cationic counter-anion usually being chosen from alkali metals such as sodium, or alkaline-earth metals such as magnesium, or a cationic organic counter-anion such as ammonium salts, amine salts or aminoalcohol salts. Surfactants can also be in their acid form.

Mention may be made, as anionic surfactants, of surfactants comprising anionic carboxylate, sulfate, sulfonate, sulfoacetate, sulfosuccinate, phosphate, isethionate, sarcosinate, glutamate, lactylate or taurate groups, salts of fatty acids, salts of galactosiduronic acids, salts of ether carboxylic acids and mixtures thereof.

More particularly, the anionic surfactant according to the invention is chosen from:

• (C ₆ -C ₃₀ )alkyl sulfates, (C ₆ -C ₃₀ )alkyl ether sulfates, (C ₆ -C ₃₀ )alkylamido ether sulfates, alkylaryl polyether sulfates or monoglyceride sulfates; preferably, for this type of anionic surfactants, (C ₆ -C ₃₀ )alkyl ether sulfates, alkylaryl polyether sulfates or a mixture are used. Mention may be made of lauryl alcohol ether sulfate and alkylene oxide, containing from 1 to 50 alkylene oxide groups.

More preferably, the anionic surfactant is selected from lauryl alcohol ether sulfate and alkylene oxide containing from 1 to 4 alkylene oxide groups, in particular ethylene oxide groups. For example, sodium laureth sulphate containing on average 2.2 ethylene oxide groups which is sold by the company Cognis (BASF) under the name Texapon® AOS 225 UP, Rhodia under the name Rhodapex® esb-70/fla3, Clariant under the name Genapol® LRO L'O, and sodium laureth sulphate containing on average 1 group of ethylene oxide which is sold by the company Zhejiang Zanyu Technology under the name SLES (N1EO).

• (C ₆ -C ₃₀ )alkyl sulphonates, (C ₆ -C ₃₀ )alkylamide sulphonates, (C ₆ -C ₃₀ )alkylaryl sulphonates, α-olefin sulphonates, paraffin sulphonates;
• (C ₆ -C ₃₀ )alkyl phosphates;
• (C ₆ -C ₃₀ )alkyl sulfosuccinates, (C ₆ -C ₃₀ )alkyl ether sulfosuccinates or (C ₆ -C ₃₀ )alkylamido sulfosuccinates;
• (C ₆ -C ₃₀ )alkyl sulfoacetates;
• (C ₆ -C ₂₄ )acylsarcosinates;
• (C ₆ -C ₂₄ )acylglutamates;
• (C ₆ -C ₃₀ )alkylpolyglycoside carboxylic ethers;
• (C ₆ -C ₃₀ )alkylpolyglycoside sulfosuccinates;
• (C ₆ -C ₃₀ )alkyl sulfosuccinamates;
• (C ₆ -C ₂₄ )acyl isethionates, for example sodium lauroyl methyl isethionate, sodium cocoyl isethionate; mention may be made of sodium lauroyl methyl isethionate which is sold under the trade name ISELUX® LQ-CLR-SB by the company Innospec Active Chemicals;
• N-[(C ₆ -C ₂₄ )acyl] taurates;
• salts of fatty acids;
• (C ₈ -C ₂₀ )acyl lactylates;
• (C ₆ -C ₃₀ )alkyl-D-galactosiduronic acid salts;
• acid salts (C₆-VS₃₀) polyoxyalkylenated carboxylic acid alkyl ether (C₆-VS₃₀) polyoxyalkylenated carboxylic acid alkylaryl ether or (C₆-VS₃₀) polyoxyalkylenated carboxylic alkylamido ether;
• and their mixtures.

The alkyl or acyl radicals of these various anionic surfactants preferably contain from 12 to 20 carbon atoms.

Further, the oxyalkylenated or polyoxyalkylenated anionic surfactants preferably comprise from 1 to 50 alkylene oxide groups, more preferably from 1 to 4 alkylene oxide groups, in particular ethylene oxide groups.

Advantageously, according to one embodiment, the present invention comprises at least one anionic surfactant chosen from (C ₆ -C ₃₀ )alkyl sulfates, (C ₆ -C ₃₀ )alkyl ether sulfates, (C ₆ -C ₃₀ )alkylamido ether sulfates, alkylaryl polyether sulfates, monoglyceride sulfates, (C ₆ -C ₂₄ )acyl isethionates _, or a mixture thereof.

According to one embodiment of the present invention, the anionic surfactant is preferably chosen from sodium laureth sulphate, sodium lauroyl methyl isethionate, sodium cocoyl isethionate or a mixture thereof.

According to one embodiment of the present invention, the anionic surfactant is sodium laureth sulphate containing on average 0.8 to 2.2 ethylene oxide groups.

According to a particularly exemplary embodiment of the present invention, the composition may be free of any sulphate for use as an anionic surfactant.

The at least one anionic surfactant (B-1) may be present in the composition according to the present invention in an amount of 1% to 30%, such as 5% to 25%, or 10% to 20%, reported to the total weight of the composition.

Amphoteric surfactant (B-2)

The composition according to the present invention comprises at least one amphoteric surfactant (B-2), which can also be called zwitterionic surfactant.

The amphoteric or zwitterionic surfactant(s) which can be used in the present invention can be quaternized secondary or tertiary aliphatic amine derivatives containing at least at least one anionic group, for example a carboxylate, sulphonate, sulphate, phosphate or phosphonate group, and in which the aliphatic group or at least one of the aliphatic groups is a straight or branched chain comprising from 8 to 22 carbon atoms.

Mention may in particular be made of (C ₈ -C ₂₀ )alkylbetaines, sulfobetaines, (C ₈ -C ₂₀ alkyl)amido(C ₂ -C ₈ alkyl)betaines and (C ₈ -C ₂₀ alkyl)amido(C ₂ -C ₈ alkyl)sulfobetaines.

Among the (C ₈ -C ₂₀ )alkylbetaines, mention may be made of behenylbetaine, cetylbetaine, cocoylbetaine and decylbetaine. Among the alkyl betaines, cocoyl betaine is preferred, for example the products sold by the company Rhodia under the trade mark Mirataine® BB/FLA.

Among the optionally quaternized secondary or tertiary aliphatic amine derivatives which can be used, mention may also be made of the products of the respective structures (A1) and (A2) below:

(A1) R _a -CON(Z)CH _2- (CH ₂ ) _m -N ⁺ (R _b )(R _c )(CH ₂ COO ^- )

in which :

R _a represents a C ₁₀ -C ₃₀ alkyl or alkenyl group derived from an acid Ra-COOH preferably present in hydrolyzed coconut oil, a heptyl group, a nonyl group or an undecyl group,

Rb represents a β-hydroxyethyl group,

Rc represents a carboxymethyl group;

m is equal to 0, 1 or 2,

Z represents a hydrogen atom or a hydroxyethyl or carboxymethyl group;

(A2) R _a' -CON(Z)CH _2- (CH ₂ ) _m' -N(B)(B')

in which :

B represents -CH₂CH₂OX', with X' representing -CH₂-COOH, CH₂-COOZ’, CH₂CH₂-COOH, -CH₂CH₂-COOZ', or a hydrogen atom,

B' represents -(CH ₂ )z-Y', with z = 1 or 2, and Y' represents -COOH, -COOZ', -CH ₂ -CHOH-SO ₃ H or -CH ₂ -CHOH-SO ₃ Z ',

m is equal to 0, 1 or 2,

Z represents a hydrogen atom or a hydroxyethyl or carboxymethyl group,

Z' represents an ion resulting from an alkali or alkaline-earth metal, such as sodium, potassium or magnesium; an ammonium ion; or an ion resulting from an organic amine and in particular from an amino alcohol, such as monoethanolamine, diethanolamine and triethanolamine, monoisopropanolamine, diisopropanolamine or triisopropanolamine, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol and tris(hydroxymethyl)aminomethane,

Ra' represents a C ₁₀ -C ₃₀ alkyl or alkenyl group of an acid Ra'COOH preferably present in linseed oil or hydrolyzed coconut oil, an alkyl group, in particular a C ₁₇ , and its iso form, or an unsaturated C ₁₇ group.

Compounds corresponding to formula (A1) may be preferred.

Among the compounds corresponding to formula (A1), mention may be made of cocamidopropyl betaine, for example the product sold under the trade mark Dehyton PK 45 by Cognis (BASF).

It is also possible to use the compounds of formula (A3):

(A3) R _a'' -NH-CH(Y'')-(CH ₂ )nC(O)-NH-(CH ₂ )n'-N(R _d )(R _e )

in which :

- Ra'' represents a group C₁₀-VS₃₀alkyl or alkenyl of an acid Ra''-C(O)OH preferably present in linseed oil or hydrolyzed coconut oil;

- Y'' represents the group -C(O)OH, -C(O)OZ'', -CH ₂ -CH(OH)-SO ₃ H or the group -CH ₂ -CH(OH)-SO ₃ - Z'', with Z'' representing a cationic counter-ion resulting from an alkali or alkaline-earth metal, such as sodium, an ammonium ion or an ion resulting from an organic amine;

- Rd and R _e represent, independently of each other, a C ₁ -C ₄ alkyl or hydroxyalkyl radical; And

- n and n' designate, independently of each other, an integer ranging from 1 to 3.

Among the compounds corresponding to formula (A3), mention may in particular be made of the compound classified in the CTFA dictionary under the name sodium diethylaminopropyl cocoaspartamide, such as that sold by the company Chimex under the name Chimexane HB.

Preferably, the amphoteric surfactants can be chosen from (C ₈ -C ₂₀ )alkyl betaines, (C ₈ -C ₂₀ )alkylamido(C ₁ -C ₆ )alkyl betaines and mixtures thereof.

Preferably, the amphoteric or zwitterionic surfactant can be chosen from cocamidopropyl betaine, cocoyl betaine or a mixture thereof.

The at least one amphoteric surfactant (B-2) may be present in the composition according to the present invention in the composition in an amount of 0.5 to 20% by weight, such as 0.5 to 10% by weight, or from 1 to 6% by weight, based on the total weight of the composition, including all intermediate ranges and subranges.

According to one embodiment of the present invention, the surfactant may preferably comprise a combination of anionic surfactant and amphoteric surfactant, preferably in an amount of 1 to 40% by weight, such as 5 to 30% by weight, or from 10 to 20% by weight, based on the total weight of the composition. More preferably, the surfactant of the invention contains a combination of an anionic sulfate surfactant and a betaine surfactant, such as a combination of sodium laureth sulfate and cocamidopropyl betaine. Without being limited to any known theory, it is believed that such a combination can be particularly beneficial to the cleaning ability of the shampoo, especially when the cationic polymer (A) is incorporated.

Thickening agent (C)

As a shampoo, it is preferable that the present composition can be easily and evenly distributed on the hair, or the hair together with the scalp. Consequently, a thickening agent can preferably be incorporated into the composition according to the present invention, so as to adjust the viscosity of the product obtained and to facilitate the lamellar distribution or the formation of a uniform film of the composition on the hair or the hair together with the scalp.

Thickening agents are those which increase the viscosity of the composition without significantly altering the effectiveness of one or more of the active ingredients of the composition. Thickening agents can also increase the stability of the composition.

Non-limiting examples of thickening agents include carboxylic acid polymers, cross-linked polyacrylate polymers, polyacrylamide polymers, polysaccharides and gums.

Examples of the carboxylic acid polymer include a crosslinking compound containing one or more monomers derived from acrylic acid, substituted acrylic acid, and salts and esters of these acrylic acids and substituted acrylic acid, in which the crosslinking agent contains two or more carbon atoms - The carbon double bond is derived from a polyol. Examples of commercially available carboxylic acid polymers include a carbomer, which is a homopolymer of acrylic acid cross-linked with sucrose or an allyl ether of pentaerythritol (e.g. Carbopol 900 line from B. F. Goodrich).

Non-limiting examples of polyacrylamide polymers including nonionic polyacrylamide polymers, including branched or unbranched substituted polymers, include polyacrylamides, isoparaffins and laureth-7 acrylamide. And substituted multiblock copolymers of acrylamide with acrylic acid and substituted acrylic acid.

Non-limiting examples of polysaccharides include cellulose, carboxymethylhydroxyethylcellulose, cellulose acetate propionate, hydroxyethylcellulose, hydroxyethyl ethylcellulose, hydroxypropylcellulose, hydroxypropyl methylcellulose, methylhydroxyethylcellulose, microcrystalline cellulose, cellulose sulphate of sodium and mixtures thereof. Another example is an alkyl-substituted cellulose in which the hydroxyl group of the cellulosic polymer is hydroxyalkylated (preferably hydroxyethylated or hydroxypropylated) to form a hydroxyalkylated cellulose, which is then modified with a C10-C30 straight or branched chain alkyl group by the through an ether bond. These polymers are generally straight or branched chain C ₁₀ -C ₃₀ alcohol ethers with hydroxyalkylated celluloses. Other useful polysaccharides include linear scleroglucans comprising linked glucose (1-3) units, wherein each of the three units has one linked glucose (1-6).

Non-limiting examples of gums include gum arabic, agar, algin, alginic acid, ammonium alginate, amylopectin, calcium alginate, calcium carrageenan, carnitine, carrageenan, dextrin, gelatin, guar gum, guar hydroxypropyltrimonium chloride, hectorite, hyaluronic acid, hydrated silica, hydroxypropyl chitosan, hydroxypropyl guar, karaya gum, seaweed, locust bean gum, natto gum, potassium alginate, potassium carrageenan, propylene glycol alginate, sclerotium gum, sodium carboxymethyl dextran, sodium carrageenan, gum tragacanth, xanthan gum and mixtures thereof.

The thickening agent may be present in the composition according to the present invention in an amount ranging from 0.01% to 5% by weight, preferably ranging from 0.05% to 3% by weight, or preferably ranging from 0, 1% to 1% by weight, based on the total weight of the composition.

Silicone oil (D)

The present composition may optionally comprise at least one silicone oil. Within the meaning of the present invention, the term “silicone oil” denotes an oil comprising at least one silicon atom, and in particular at least one Si—O group.

Of course, a composition according to the invention or envisaged according to a process of the invention can contain a mixture of silicone oils only partly consisting of such an oil.

The silicone oils which can be used in the compositions according to the invention can be volatile and/or non-volatile.

Volatile silicone oils

According to a first embodiment, the compositions according to the invention comprise at least one volatile silicone oil.

The volatile silicone oil which can be used in the invention can be chosen from silicone oils having in particular a viscosity at 25° C. of less than or equal to 8 centistokes (cSt) (8×10 ^-6 m ² /s) .

In addition, the volatile silicone oil which can be used in the invention can preferably be chosen from silicone oils having a flash point of between 40° C. and 102° C., preferably having a flash point higher at 55°C and less than or equal to 95°C, and preferably ranging from 65°C to 95°C.

Non-volatile silicone oils

According to a second embodiment, the compositions according to the invention may comprise at least one non-volatile silicone oil.

The non-volatile silicone oil which can be used in the invention can be chosen from silicone oils having a viscosity at 25° C. greater than or equal to 9 centistokes (cSt) (9×10 ^-6 m ² /s) and less than 800,000 cSt, preferably between 50 and 600,000 cSt, preferably between 100 and 500,000 cSt. The viscosity of this silicone can be measured according to the ASTM D-445 standard.

Among these silicone oils, two types of oils can be distinguished depending on whether or not they are phenyl oils.

By way of representation of these non-volatile linear silicone oils, mention may be made of polydimethylsiloxanes (dimethicones), alkyl dimethicones, vinylmethyl methicones, as well as silicones modified with aliphatic groups, optionally fluorinated, or with functional groups such as hydroxyl, thiol and/or amine groups.

The silicones modified with amine groups which are particularly preferred according to the invention are polysiloxanes comprising amino groups, such as amodimethicones or trimethylsilylamodimethicones.

The silicone oil may be present in the composition according to the present invention in an amount ranging from 0.1% to 20% by weight, preferably from 0.5% to 10% by weight and more particularly from 1% to 5 % by weight, based on the total weight of the composition.

According to an exemplary embodiment of the present invention, the present composition may be free of the silicone oil (D).

Solvent

The composition according to the invention can advantageously comprise one or more solvent(s), for example water and/or an organic solvent.

Water

The composition according to the invention can advantageously comprise water in variable amounts. For example, water is used in a content greater than or equal to 40% by weight relative to the total weight of the composition. The water content of the low viscosity composition according to the invention is preferably between 40% and 90% by weight, more preferably between 50% and 85% by weight, or between 60% and 80% by weight, based on the total weight of the composition.

Organic solvent

The composition according to the invention may also comprise one or more organic solvents, preferably water-soluble organic solvents (solubility greater than or equal to 5% in water at 25° C. and at atmospheric pressure).

Examples of organic solvents which may be mentioned include linear or branched, and preferably saturated, monoalcohols or diols comprising 2 to 10 carbon atoms, such as ethyl alcohol, isopropyl alcohol, hexylene glycol (2 -methyl-2,4-pentanediol), neopentyl glycol and 3-methyl-1,5-pentanediol, butylene glycol, dipropylene glycol and propylene glycol; aromatic alcohols such as phenylethyl alcohol; polyols containing more than two hydroxyl functions, such as glycerol; polyol ethers, for example ethylene glycol monomethyl, monoethyl and monobutyl ether, propylene glycol or its ethers, for example propylene glycol monomethyl ether; as well as diethylene glycol alkyl ethers, especially C₁-VS₄alkyl ethers, for example diethylene glycol monoethyl ether or monobutyl ether, alone or as a mixture.

The organic solvents, when present, can represent between 0 and 20% by weight relative to the total weight of the composition according to the invention, and preferably between 0.1 and 15% by weight, or between 0.3 and 5% by weight. According to one embodiment of the present invention, no alcohol, in particular polyol, is intentionally added to the composition of the invention as an organic solvent. For example, the composition according to the present invention can be free of any polyol.

Additional additives

According to various embodiments, the compositions of the present invention are intended for application to keratin fibers, such as the skin or the hair. In accordance with these embodiments, the compositions of the present invention may comprise various ingredients conventionally useful in compositions for cleaning keratin fibers, such as active ingredients, humectants, fatty substances, antidandruff agents, antiseborrheic agents , agents intended to prevent hair loss and/or to promote hair regrowth, vitamins and provitamins, including panthenol, sunscreens, sequestrants, plasticizers, acidifying agents, opacifiers, pearlescent or pearling agents , antioxidants, hydroxy acids, flavors and preservatives.

A non-exhaustive list of these ingredients appears in US Patent Application Publication No. 2004/0170586, the entire content of which is incorporated herein by reference. Still additional examples of these ingredients can be found in the International Cosmetic Ingredient Dictionary and Handbook ( ^9th ed. 2002).

A person skilled in the art will take care to choose the optional additional additives and/or their quantity so that the advantageous properties of the composition according to the invention are not, or are not substantially, affected by the addition envisaged.

These additives can be chosen variously by those skilled in the art in order to prepare a composition which has the desired properties, for example, consistency or texture. In particular, additives, if used, and their amounts are determined particularly depending on the specific products/applications thereof, e.g., lotion, leave-in conditioner, shampoo, cream, leave-in conditioner, emulsion and the like .

These additives may be present in the composition in an amount ranging from 0.01% to 90% based on the total weight of the composition and further from 0.1% to 50% (if present), including all ranges and under -intermediate ranges.

Process and use

The composition according to the present invention can generally be prepared according to the general knowledge of a person skilled in the art. Nevertheless, it is understood that a person skilled in the art can choose the method of preparation, on the basis of his general knowledge, taking into account the nature of the constituents used, for example their solubility in the vehicle, and the application envisaged. for the compositions or the necessary.

According to one embodiment, the composition according to the present invention can be used to clean the keratin fibres, in particular the hair, or the hair with the scalp. This use can manifest itself as a process for cleaning keratin fibers, in particular the hair, comprising the step consisting in applying the composition of the present invention to said keratin fibers.

The composition according to the present invention is preferably useful for manufacturing a shampoo product. The invention will be illustrated in more detail by the following examples, which show particularly advantageous embodiments.

Although the numerical ranges and parameters defining the general scope of the present invention are approximations, the numerical values given in the specific examples are reported as accurately as possible. However, any numerical value inherently contains certain errors necessarily resulting from the standard deviation found in their respective measurements. The following examples are intended to illustrate the present invention without limiting its scope.

Examples

The quantities/concentrations of ingredients in the compositions/formulas described below have been expressed in % by weight, relative to the total weight of each composition/formula.

Materials not specified here were all commercially available.

Example 1

Compositions A1-A2, and comparative composition B, in Tables 1 and 2, were respectively formulated:

INCI name Layout A1 Layout A2 Comparative composition B SODIUM LAURETH SULFATE
(TEXAPON No. 701, from BASF) 19.8 19.8 19.8 COCAMIDOPROPYL BETAINE
(DEHYTON PK 45, from BASF) 3.9 3.9 3.9 HYDROXYPROPYL GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE
(JAGUAR C 162 SGI, from RHODIA (SOLVAY)) 0.25 0.25 0.25 POLYQUATERNIUM-67
(SOFTCAT POLYMER SL-100, from DOW) 0.1 0 POLYQUATERNIUM-7 0.2 CARBOMER
(CARBOPOL 980 POLYMER, from LUBRIZOL) 0.36 0.36 0.36 HYDROXYPROPYL METHYLCELLULOSE
(METHOCEL E 4M PREMIUM, from DOW) 0.1 0.1 0.1 DIMETHICONE (and) AMODIMETHICONE (and) TRIDECETH-10 (and) PEG-100 STEARATE (and) STEARETH-6 (and) TRIDECETH-3
(BELSIL DADM 5050E, from WACKER) 2.4 2.4 2.4 DIMETHICONOL (and) TEA-DODECYLBENZENESULFONATE
(BELSIL DM 6011E, from WACKER) 1 1 1 WATER SQ at 100 SQ at 100 SQ at 100

Compositions A1, A2 and B listed above were prepared according to a manufacturing process known in the field.

Compositions A1, A2 and B were obtained in the form of a shampoo product according to the present invention.

Example 2

Compositions A1, A2 and B were evaluated. Equivalent samples of 6g, 27cm Chinese hair strands were used. The same DIASTRON MTT175 device, but with different parts, was used for two tests: TOUCHAIR test (for the average friction force (reported in N)) and DETANGLE test (for the average disentangling force (reported in N) ), following standard procedures for both tests on the device. For each trial, a relatively lower value represented a better result. The evaluation was carried out according to the following steps:

1) All the locks of hair were washed twice with cleansing compositions A1, A2 and B (1.6g + 1.2g/6g lock of hair) according to procedure RC-MCI-OIP-003B;

2) Then, the frictional force was measured for all the wicks with the TOUCHAIR test in wet condition;

3) All hair strands were grouped into groups with similar average wet friction force and its standard deviation;

4) The locks were respectively treated with all the products according to the standard procedures but with 2 applications (dosage: 1.6g + 1.2g);

5) Then, the frictional force was measured for all the wicks with the TOUCHAIR test in wet condition;

6) The locks of hair were naturally dried overnight and stored in an H&T chamber (23°C, 50% RH);

7) Then, the frictional force was measured again for all the locks with the TOUCHAIR test in dry condition;

8) All hair strands pass through the wind blowing in the T&H chamber (10 min) to generate tangles;

9) The detangling force was measured with the Detangle test in dry conditions;

10) Sections of hair were twisted in a blender with water (10s for each) to create tangles;

11) Detangling force was measured with the Wet Detangle test under wet condition.

The results are shown in Table 2 below.

Results Layout A1 Composition A2 Comparative composition B Smooth dry (N) 1.67 1.62 2.32 Smooth wet (N) 1.94 2.24 2.2 Dry detangling (N) 10.53 7.83 4.07 Wet detangling (N) 2.92 4.5 5.16

Referring to Table 2, it was observed that compositions A1 and A2 exhibited relatively better performance than composition B.

Claims (10)

Composition for cleaning keratin fibres, comprising the following components
(A) at least one cationic polymer, comprising (A-1) a cationic cellulose copolymer or a cellulose derivative grafted with a water-soluble quaternary ammonium monomer, optionally together with (A-2) a cationic polymer additional ;
(B) a surfactant comprising (B-1) at least one anionic surfactant, and/or (B-2) at least one amphoteric surfactant;
(C) at least one thickening agent; And
(D) optionally, at least one silicone oil. Composition according to Claim 1, in which the cationic polymer (A-1) is selected from the group consisting of Polyquaternium-6, 7, 10, 11, 15, 16, 22, 39, 47, 55, 67 and 76. Composition according to any one of the preceding claims, in which the cationic polymer (A-2) is chosen from the group consisting of cationic galactomannan gums, for example guar gums comprising cationic trialkylammonium groups, such as hydroxypropyltrimonium guar. Composition according to one of the preceding claims, in which the cationic polymer (A) comprises both the cationic polymer (A-1) and the cationic polymer (A-2). A composition according to any preceding claim, wherein the anionic surfactant (B-1) is selected from the group consisting of an alkali metal, alkaline earth metal or ammonium salt of: laureth sulfate, lauroyl methyl isethionate , cocoyl isethionate, or a mixture thereof. A composition according to any preceding claim, wherein the amphoteric surfactant (B-2) is a betaine surfactant selected from the group consisting of (C ₈ -C ₂₀ )alkylbetaines, sulfobetaines, (C ₈ -C ₂₀ alkyl)amido (C ₂ -C ₈ alkyl)betaines and (C ₈ -C ₂₀ alkyl)amido(C ₂ -C ₈ alkyl)sulfobetaines; preferably cocoamidopropyl betaine or cocoyl betaine. A composition according to any preceding claim, wherein the composition comprises a combination of an anionic surfactant in the form of a sulfate and a betaine surfactant, such as a combination of sodium laureth sulfate and cocoylamidopropyl betaine. Composition according to any one of the preceding claims, in which the silicone oil (D) is present and chosen from the group consisting of polydimethylsiloxanes; C1-10 alkyl dimethicones; vinylmethyl methicones; amodimethicones and trimethylsilylamodimethicones. Shampoo product comprising the composition according to one of the preceding claims. Use of the composition according to any one of Claims 1 to 15 in cleaning keratin fibres.