KR20070031423A - Amphoteric polysaccharide compounds containing aldehyde functions, composition comprising them and cosmetic use thereof - Google Patents

Abstract

The present invention provides a novel amphoteric polysaccharide compound represented by the following general formula (I) and having an aldehyde functional group:

(In the general formula (I),

 P represents a polysaccharide chain, which chain has at least one aldehyde functional group, and optionally at least one -COOV group, wherein the -COOV group can be obtained during the oxidation reaction of carbon atoms of the polysaccharide unit,

Y is a linear or branched, saturated or unsaturated, optionally hydroxylated divalent C ₁ -C ₈ hydrocarbon group optionally containing one or more ether groups and / or amine groups in the hydrocarbon chain, or- Si (R) _2- [O-Si (R) ₂ ] _q -Z-,

 p is 0 or 1,

 CAT is an ammonium group or a cationic polymer chain obtained by graft polymerization of an ethylene monomer having an ammonium group.

The present invention also provides a use of the amphoteric polysaccharide compound in the cosmetic field, and a composition comprising the compound.

Amphoteric, Polysaccharide, Aldehyde, Beauty, Hair, Skin, Conditioning

Description

AMPHOTERIC POLYSACCHARIDE COMPOUNDS CONTAINING ALDEHYDE FUNCTION (S), COMPOSITION COMPRISING THEM AND COSMETIC USE THEREOF}

The present invention relates to novel amphoteric polysaccharide compounds with aldehyde functional groups, cosmetic uses of such compounds, and compositions comprising the compounds.

In the field of conventional cosmetics, in order to enhance the cosmetic properties of keratin materials, in particular hair and skin, in particular hair such as atmospheric agents, and / or perm-wave formers, colorants, or bleaching agents. Research has been carried out to improve the cosmetic properties of hairs that are sensitive by the chemical action of the treatment agent, ie hairs that are damaged or easily damaged by this chemical action.

Harmful or undesirable effects caused by various treatments or factors that repeatedly affect hair fibers, using reinforcing cosmetic agents, commonly referred to as conditioning agents (eg cationic polymers or silicones). By improving or suppressing the effect, the aforementioned cosmetic properties can be improved. In addition, by using such a conditioning agent can also improve the cosmetic behavior of natural hair.

Other conditioning agents, such as amphoteric polysaccharides described in US Pat. No. 4,803,071, US Pat. No. 4,464,523, International Patent No. 90/03779, and French Patent 2 883 599, may also be used in the hair cosmetic composition. However, the conventional polysaccharide conditioning agent has a problem that the conditioning effect and its maintenance effect are not so good.

The Applicant has confirmed that after using the conventional conditioning agent several times, the feeling applied to the hair is heavy and does not feel gentle.

On the other hand, the applicant can solve the above problems by applying the novel amphoteric polysaccharide compound having the aldehyde functional group of the present invention to the cosmetic composition, as well as excellent conditioning effect and hair protection effect, good hair entanglement inhibitory effect, It has been found that it can provide excellent cosmetic effects such as the flexibility and smoothness of keratinous fibers. In addition, by using the amphoteric polysaccharide compound having the aldehyde functional group, excessive precipitates that cause heavy feeling of application, hair entanglement, and inflexible characteristics are not observed, while the hair is washed several times. It has been found that properties can be maintained.

In addition, by using the conditioning agent of the present invention, it is possible to provide skin cosmetic properties such as good moisture retention.

Accordingly, an object of the present invention is to provide a novel amphoteric polysaccharide compound having the following aldehyde functional group.

Another object of the present invention is the use of the polysaccharide compound of the present invention as a conditioning agent in the field of cosmetics, in particular, the care and protection of hair, hair styling, the formation of firm waves, relaxation, of hair To provide for use as a conditioning agent for dyeing or discoloring, in addition to the cleaning and care of the skin, or for the cosmetic treatment of keratin materials such as makeup of the skin, lips or hands / claws.

Another object of the present invention is to provide a cosmetic composition comprising at least one polysaccharide compound according to the invention in a cosmetically acceptable medium.

Subject matters, features, aspects, and advantages of the present invention other than those described above will be described in more detail with reference to the following description and examples.

Amphoteric polysaccharide compounds having an aldehyde functional group of the present invention, as substituents other than the aldehyde functional group, have at least one anionic group, and at least one cationic group.

The amphoteric polysaccharide compound having the above aldehyde functional group may be represented by the following general formula (I):

In the general formula (I),

The oxygen atom is bonded to one or more polysaccharide units of P,

P represents a polysaccharide chain, the chain having at least one aldehyde functional group (-CHO), and optionally at least one -COOV group, wherein the -COOV group is a carbon atom of the polysaccharide unit, e.g., a C2 position, a C3 position, Or in the course of the oxidation reaction of the carbon atoms at the C6 position, when the carbon atoms at the C2 or C3 position are oxidized, 0.01% to 75%, preferably 0.1% to 50% of the ring may be ring-opened. There is,

Y is

A linear or branched, saturated or unsaturated, optionally hydroxylated divalent C ₁ -C ₈ hydrocarbon group optionally comprising one or more ether groups and / or amine groups in the hydrocarbon chain, or

The group represented by the following structural formula:

Wherein the silicon atom is bonded to an oxygen atom of the group -O- (Y) _p -CAT,

Each R represents R ₁ or OR ₁ and may be the same or different from each other,

Where R ₁ is

Monovalent C ₁ -C ₈ , preferably C ₁ -C ₄ linear or branched, saturated or unsaturated, optionally hydroxylated, optionally comprising at least one ether group and / or amine group in the hydrocarbon chain A hydrocarbon group,

  q is an integer of 0-10, Preferably it is an integer of 0-5, Especially preferably, it is 0,

  Z is

A divalent C _{1 to} C ₁₂ , preferably C ₁ to C ₈ , optionally containing one or more ether and / or amine groups in the hydrocarbon chain, linear or branched, saturated or unsaturated, optionally hydroxylated Hydrocarbon group),

p is 0 or 1,

When CAT is a cationic polymer chain obtained by graft polymerization of an ethylene monomer having an ammonium group, p = 0,

CAT,

Ammonium group represented by the following structural formula:

(In the above structural formula,

Each of R ₂ , R ₃ , and R ₄ is independently of each other,

 Is a hydrogen atom, or

Monovalent C _{1 to} C ₂₂ , preferably C ₁ to C ₁₈ , optionally containing one or more ether and / or amine groups in the hydrocarbon chain, linear or branched, saturated or unsaturated, optionally hydroxylated A hydrocarbon group,

Q ⁻ is a halogen atom such as a mineral or organic anion such as a chlorine atom or bromine atom, particularly preferably a chlorine atom or acetate, citrate, lactate, oleate, or behenate ) Or

Cationic polymer chain obtained by graft polymerization of an ethylene monomer having an ammonium group represented by the following structural formula:

(In the above structural formula,

Each of R ₅ , R ₆ , and R ₇ is, independently of one another, a hydrogen atom, or a linear or branched C ₁ -C ₂₂ , preferably C ₁ -C ₁₈ alkyl group, or a linear or branched C ₂ C ₂₂ , preferably a C ₂ -C ₁₈ alkenyl group),

m is a value such that the degree of substitution (DS (+)) at which the polysaccharide compound is substituted with the cationic group is 0.02 to 1.5, preferably 0.05 to 1.

In the present specification, the degree of substitution (DS (+): degree of substitution) of an amphoteric polysaccharide compound refers to the number of hydroxyl groups substituted with cationic groups in all repeating units, and basic monosaccharides (pre-oxidation reaction) constituting the unit. (including monosaccharides ring-opened by pre-oxidation).

Examples of the polysaccharide chain (P) having an aldehyde functional group include cellulose, starch, inulin, guar gum, xanthan gum, pullulan, agar-agar, sodium, Potassium or ammonium alginate, carrageenan, dextran, furcellaran, gellan gum, gum arabic, gum tragacanth , Hyaluronic acid, konjac mannan, lignin sulfonate, carob gum, partially N-acetylated chitin, pectin, polydextrose, ramic acid gum Preference is given to polysaccharide chains obtained by oxidation of (rhamsan gum) or welan gum.

The oxidation reaction can be carried out according to known methods, such as those described in French Patent 2 842 200, or E. Fredon et al., "Hydrophobic films from maize bran hemicelluloses", Carbohydrate Polymers 49, 2002, p. 1-12. have.

More preferred examples of the polysaccharide chain having the aldehyde functional group include cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl cellulose, starch, starch acetate, hydroxyethyl starch, and hydroxy. And polysaccharide chains obtained by oxidation of oxypropyl starch, inulin, guar gum, carboxymethyl guar gum, carboxymethylhydroxypropyl guar gum, hydroxyethyl guar gum, hydroxypropyl guar gum, or xanthan gum.

The polysaccharide chain having the aldehyde functional group preferably has a weight average molecular weight in the range of 500 to 15,000,000, more preferably in the range of 1,000 to 10,000,000.

Examples of Y or Z in the above general formula (I) which are linear or branched, saturated or unsaturated divalent C _{1 to} C ₈ , preferably divalent C _{1 to} C ₆ hydrocarbon groups are linear or branched C ₁ -C ₆ alkylene group such as methylene group, ethylene group, n-propylene group, isopropylene group, n-butylene group, tert-butylene group, or hexylene group; And linear or branched C ₂ to C ₈ alkylene groups such as vinylene group, allylene group, crotonylene group, butenylene group, isobutenylene group, tert-butenylene group, hexenylene group, or octenylene group. have. Such divalent hydrocarbon groups may further comprise one or more hydroxy substituents, and / or one or more ether groups and / or amine groups in the alkylene or alkenylene chain.

Examples of R ₁ , which is a linear or branched, saturated or unsaturated monovalent C ₁ -C ₈ , preferably monovalent C ₁ -C ₄ hydrocarbon group, include linear or branched C ₁ -C ₄ alkyl groups, for example, Methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, or tert-butyl group; And linear or branched C ₂ -C ₄ alkenyl groups such as vinyl, allyl, crotonyl, butenyl, isobutenyl, or tert-butenyl groups, such monovalent hydrocarbon groups It may further have a hydroxy substituent, and / or may include one or more ether groups and / or amine groups in the chain.

In addition, examples of each of R ₂ to R ₇ in the structural formula include linear or branched C ₁ -C ₄ alkyl groups such as methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, or tert -Butyl group; And linear or branched C ₁₂ to C ₁₈ alkyl groups such as lauryl group, myristyl group, cetyl group, or stearyl group. Examples of linear or branched C ₂ to C ₁₈ , preferably C ₂ to C ₆ alkenyl groups include vinyl groups, allyl groups, crotonyl groups, and butenyl groups.

The most preferred compound as the amphoteric polysaccharide compound is represented by the general formula (I),

P is cellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylcellulose, starch, starch acetate, hydroxyethyl starch, hydroxypropyl starch, inulin, guar gum, carboxymethylguar It is a polysaccharide chain obtained by oxidation of a gum, carboxymethyl hydroxypropyl guar gum, hydroxyethyl guar gum, hydroxypropyl guar gum, or xanthan gum,

Y is a linear or branched C ₁ -C ₆ alkylene group such as methylene group, ethylene group, n-propylene group, isopropylene group, n-butylene group, tert-butylene group, or hexylene group; Or linear or branched C ₂ to C ₈ alkenylene groups such as vinylene group, allylene group, crotonylene group, butenylene group, isobutenylene group, tert-butenylene group, hexenylene group, or octenylene group Or a group represented by the following structural formula:

(In the above structural formula,

Each R represents R ₁ or OR ₁ and may be the same or different from each other,

Wherein R ₁ is a linear or branched C ₁ -C ₄ alkyl group such as a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, or tert-butyl group; Or linear or branched C ₂ to C ₄ alkenyl groups such as vinyl, allyl, crotonyl, butenyl, isobutenyl, or tert-butenyl,

 q is an integer from 0 to 5,

Z is a linear or branched C ₁ -C ₈ alkylene group such as methylene group, ethylene group, n-propylene group, isopropylene group, n-butylene group, tert-butylene group, or hexylene group; Or linear or branched C ₂ to C ₈ alkenylene groups such as vinylene group, allylene group, crotonylene group, butenylene group, isobutenylene group, tert-butenylene group, hexenylene group, or octenylene group) ego,

Each p, CAT, and m are defined the same as above,

Each of R ₂ to R ₇ is a hydrogen atom or an optionally hydroxylated C _1-4 alkyl group such as a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, or tert-butyl group Or an optionally hydroxylated C ₁₂ -C ₁₈ alkyl group such as a lauryl group, myristyl group, cetyl group, or stearyl group, or a linear or branched C ₂ -C ₆ alkenyl group, For example, it is a compound which is a vinyl group, an allyl group, a crotonyl group, or a butenyl group.

Amphoteric polysaccharide compounds having an aldehyde functional group of the present invention are used for use as a conditioning agent in the field of cosmetics, in particular for the care and protection of hair, the maintenance and formation of hair, the cleaning and care of the skin, and the skin, It can be used for use as a conditioning agent for the cosmetic treatment of keratin materials, such as makeup of the lips or hands / claws.

The present invention also provides a composition comprising at least one amphoteric polysaccharide compound having an aldehyde functional group in a cosmetically acceptable medium, wherein the amphoteric polysaccharide compound is from 0.05% by weight to based on the total weight of the composition In an amount of 50% by weight, preferably in an amount of 0.5% to 25% by weight.

By “cosmetically acceptable medium” is meant a medium miscible with any keratin materials, such as skin, hair, nails, toenails, eyelashes, eyebrows, lips, and other parts of the body or facial skin.

The cosmetically acceptable medium may be composed solely of water alone, or may be composed of a mixture of cosmetically acceptable solvents and water, exemplifying the cosmetically acceptable solvent, C _{1 to} C ₄ lower Alcohols such as ethanol, isopropanol, tert-butanol, or n-butanol, alkylene polyols such as propylene glycol, and polyol ethers, and mixtures thereof.

The compositions of the present invention may comprise one or more standard additives known in the art, such as anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric or zwitterionic surfactants; Anionic polymers, cationic polymers, nonionic polymers, amphoteric or zwitterionic polymers; Thickeners; Nacreous agents; Opacifiers; UV blockers; Spices; Mineral oils, vegetable oils and / or synthetic oils; Fatty acid esters; dyes; Volatile or nonvolatile, organic modified or unorganically modified, cyclic or noncyclic, branched or non-branched silicones; Mineral or organic, natural or synthetic particles; antiseptic; And a pH stabilizer.

Those skilled in the art can select the type and amount of the additives within a range that does not impair the desirable properties of the composition of the present invention.

Such additives are typically included in the composition of the present invention in an amount of 0 to 20% by weight.

The cosmetic composition of the present invention may be in the form of a mousse, gel, spray, or lacquer, and after applying the composition of the present invention, washing or applying the composition of the present invention. It can be used in a leave-on manner.

The compositions of the invention can be used for the cleaning, care, and / or conditioning of hair products, in particular for the maintenance of hair, for the maintenance of hairstyles, for shaping, dyeing, bleaching, perm shaping, or relaxing hair. As a product for relaxing, it can be used as a product of a hair-rinse-out product after being applied to the hair, or a product of a method of being left in the state of being applied to the hair.

In addition, the compositions of the present invention may be used for care, hygiene, such as protection, treatment, or care creams for the face, hands, or body, and protective or care body milks, gels, or mousses for care or cleansing the skin. product; Or as a make-up or make-up removal product for skin, lips, nails, toenails, and eyelashes.

Hereinafter, the present invention will be described in more detail with reference to examples of the present invention, but the present invention is not limited by the following examples.

Example 1 Grafting of 3-Epoxypropyltrimethylammonium Chloride to Oxidized Starch

24 g of oxidized starch (acid number: 1.4 mmol / g, carbonyl number: 1.08 mmol / g) was dispersed in 500 mL of acetonitrile with stirring.

Then 62.5 mmol of 50% sodium hydroxide, and 0.2 mol of 3-epoxypropyltrimethylammonium chloride were added sequentially. The resulting mixture was heated at 50 ° C. for 5 hours and then neutralized with 12 mL of acetic acid.

As a result, a brown gum was obtained, which was slurried twice in acetonitrile. That is, acetonitrile was penetrated into the gum to extract predetermined impurities, and then the gum was removed with a suction filter, and the above-described operation was repeated twice.

The obtained solid was dried at a temperature of 50 ° C. and in a vacuum state until a constant weight was obtained. As a result of measuring the chloride number of the filtrate obtained above and the solid, the degree of grafting was 78%.

Example 2 : Shampoo

Shampoo compositions were prepared according to the ingredients and weights listed in the table below, with the amount of each ingredient being the weight percent value of the active substance based on the total weight of the shampoo composition:

Example 3 : Conditioner

Conditioner compositions were prepared according to the components and weights listed in the table below, with the amount of each component being the weight percent value of the active substance based on the total weight of the conditioner composition:

Examples 4-6

The dyeing compositions were prepared according to the components and weights listed in the table below, the amount of each of which is a weight percent value of the active substance based on the total weight of the dyeing composition:

When using each of the dyeing compositions, each of the above compositions was mixed with 20 times the amount of hydrogen peroxide solution (6% by weight).

Each mixture thus obtained was applied to natural or firm wave-shaped gray hair, each containing 90% of white hair, for 30 minutes. Then, the hair was rinsed, washed with a commonly used shampoo, rinsed again, and dried.

When using each of the compositions of Examples 4-6, it was confirmed that each hair was dyed gold.

Example 7

According to the components and weights shown in the table below, different compositions for dyeing were prepared, the amounts of each of the following components being the weight percent value of the active substance based on the total weight of the dyeing composition:

When using an emulsion composition in the form of an emulsion containing 7.5% hydrogen peroxide (oxidizing agent), it was mixed with the dyeing composition at a ratio of 1 part by weight of the dyeing composition per 1.5 parts by weight of the oxidation composition. The resulting mixture was applied to natural hair comprising 90% of white hair and then left to apply for 30 minutes. The hair was rinsed, rinsed with shampoo and then dried to darken the hair to a light brown color with a coppery-red hue.

Example 8

According to the components and weights shown in the following table, each of the following compositions was prepared, the amount of each of the following components being the weight percent value of the active substance based on the total weight of the composition:

Oxidation Composition:

Dyeing Compositions:

AM * = active substance

In use, the dyeing composition and the oxidation composition were mixed in a ratio of 1 part by weight of the dyeing composition per 1.5 parts by weight of the oxidation composition in a plastic container.

The resulting mixture was applied to natural hair comprising 90% of white hair and then left to apply for 30 minutes. The hair was rinsed, rinsed with shampoo and then dried, then the tangled hair was loosened.

As a result, the hair was found to be darkly dyed with light brown.

Example 9

The dyeing compositions were prepared according to the components and weights listed in the table below, the amount of each of which is a weight percent value of the active substance based on the total weight of the dyeing composition:

AM: active substance

Claims (24)

Amphoteric polysaccharide compound represented by the following general formula (I) and having an aldehyde functional group:

In the general formula (I), The oxygen atom is bonded to one or more polysaccharide units of P, P represents a polysaccharide chain, which chain has at least one aldehyde functional group, and optionally at least one -COOV group, wherein the -COOV group can be obtained during the oxidation reaction of carbon atoms of the polysaccharide unit, Y is A linear or branched, saturated or unsaturated, optionally hydroxylated divalent C ₁ -C ₈ hydrocarbon group optionally comprising one or more ether groups and / or amine groups in the hydrocarbon chain, or The group represented by the following structural formula:

(In the above structural formula, A silicon atom is bonded to an oxygen atom of the group -O- (Y) _p -CAT, Each R represents R ₁ or -OR ₁ , can be the same or different from one another, Where R ₁ is Optionally containing one or more ether groups and / or amine groups in the hydrocarbon chain, linear or branched, saturated or unsaturated, optionally hydroxylated monovalent C ₁ -C ₈ hydrocarbon groups,  q is an integer from 0 to 10,  Z is Optionally comprises one or more ether groups and / or amine groups in the hydrocarbon chain, linear or branched, saturated or unsaturated, optionally hydroxylated divalent C ₁ -C ₁₂ hydrocarbon groups, p is 0 or 1, When CAT is a cationic polymer chain obtained by graft polymerization of an ethylene monomer having an ammonium group, p = 0, CAT, Ammonium group represented by the following structural formula:

 (In the above structural formula, Each of R ₂ , R ₃ , and R ₄ is independently of each other,   Is a hydrogen atom, or Optionally containing one or more ether groups and / or amine groups in the hydrocarbon chain, linear or branched, saturated or unsaturated, optionally hydroxylated monovalent C ₁ -C ₂₂ hydrocarbon groups, Q ^- is a mineral or organic anion), or It is a cationic polymer chain obtained by graft polymerization of an ethylene monomer having an ammonium group, m is a value such that the substitution degree at which the polysaccharide compound is substituted with the cationic group is 0.02 to 1.5. The method of claim 1, P in the general formula (I) Cellulose, starch, inulin, guar gum, xanthan gum, pullulan, agar-agar, sodium, potassium, or ammonium alginate, carrageenan ( carrageenan, dextran, percellaran, gellan gum, gum arabic, gum tragacanth, hyaluronic acid, konjac mannan ), Lignin sulfonate, carob gum, partially N-acetylated chitin, pectin, polydextrose, rhamsan gum, or welan gum Amphoteric polysaccharide compound obtained by the oxidation of the compound. The method of claim 2, P in the general formula (I) Cellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylcellulose, starch, starch acetate, hydroxyethyl starch, hydroxypropyl starch, inulin, guar gum, carboxymethylguar gum, Amphoteric polysaccharide compound obtained by oxidation of carboxymethyl hydroxypropyl guar gum, hydroxyethyl guar gum, hydroxypropyl guar gum, or xanthan gum. The method according to any one of claims 1 to 3, Y or Z which is a divalent hydrocarbon group in the said General formula (I), Linear or branched C ₁ to C ₈ alkylene groups, and linear or branched C ₂ , optionally having one or more hydroxy groups and / or one or more ether and / or amine groups in the alkylene or alkenylene chain amphoteric polysaccharide compounds being selected from ~C ₈ alkylene group. The method of claim 4, wherein Y or Z, the divalent hydrocarbon group Methylene group, ethylene group, n-propylene group, isopropylene group, n-butylene group, tert-butylene group, hexylene group, vinylene group, allylene group, crotonylene group, butenylene group, isobutenylene group, tert-part Amphoteric polysaccharide compound characterized in that it is selected from a tenylene group, a hexenylene group, and an octenylene group. The method according to any one of claims 1 to 5, Amphoteric polysaccharide compound wherein R ₁ in the structural formula is a linear or branched C ₁ -C ₄ alkyl group, or a linear or branched C ₂ -C ₄ alkenyl group. The method of claim 6, R ₁ is a methyl group, an ethyl group, n-propyl group, isopropyl group, n-butyl group, tert-butyl group, vinyl group, allyl group, crotonyl group, butenyl group, isobutenyl group, and tert-butenyl group Amphoteric polysaccharide compound, characterized in that selected from the group. The method according to any one of claims 1 to 7, Q ^- is an amphoteric polysaccharide compound characterized in that it is a halogen atom, acetate, citrate, lactate, oleate, or behenate. The method according to any one of claims 1 to 8, Each of R ₂ , R ₃ , and R ₄ is independently of each other, Amphoteric polysaccharide compound characterized in that it is a hydrogen atom, a linear or branched C ₁ -C ₄ alkyl group, a linear or branched C ₁₂ -C ₁₈ alkyl group, or a linear or branched C ₂ -C ₆ alkenyl group. The method of claim 9, Each of R ₂ , R ₃ , and R ₄ is independently of each other, Hydrogen atom or methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, tert-butyl group, lauryl group, myristyl group, cetyl group, stearyl group, vinyl group, An amphoteric polysaccharide compound, which is an allyl group, crotonyl group or butenyl group. The method according to any one of claims 1 to 10, Amphoteric polysaccharide compound, characterized in that the ethylene monomer having a quaternary ammonium group in the general formula (I) is a monomer represented by the following structural formula:

(In the above structural formula, Each of R ₅ , R ₆ , and R ₇ is independently of each other, Hydrogen atom, or a linear or branched C ₁ -C ₂₂ alkyl group, or a linear or branched C ₂ -C ₂₂ alkenyl group. The method of claim 11, In the above structural formula, each of R ₅ , R ₆ , and R ₇ is independently of each other, Amphoteric polysaccharide compound characterized by being a hydrogen atom or a linear or branched C ₁ -C ₄ alkyl group, a linear or branched C ₁₂ -C ₁₈ alkyl group, or a linear or branched C ₂ -C ₆ alkenyl group . The method of claim 12, Each of R ₅ , R ₆ , and R ₇ is independently of each other, Hydrogen atom or methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, tert-butyl group, lauryl group, myristyl group, cetyl group, stearyl group, vinyl group, allyl group, chromium Amphoteric polysaccharide compound, characterized in that the tonyl group or butenyl group. Use of the amphoteric polysaccharide compound having an aldehyde functional group according to any one of claims 1 to 13, for use as a conditioning agent in the cosmetic field. The method of claim 14, Use for the cosmetic treatment of keratin materials. The method of claim 15, Use for the care and protection of hair. The method of claim 15, Use for the cleaning and care of the skin. The method of claim 15, Use for the makeup of skin, lips, nails and toenails. A cosmetic composition comprising at least one amphoteric polysaccharide compound having an aldehyde functional group according to any one of claims 1 to 13 in a cosmetically acceptable medium. The method of claim 19, Cosmetic composition, characterized in that the amphoteric polysaccharide compound having an aldehyde functional group is included in an amount of 0.05% to 50% by weight based on the total weight of the composition. The method of claim 20, Cosmetic composition, characterized in that the amphoteric polysaccharide compound having an aldehyde functional group is included in an amount of 0.5% to 25% by weight based on the total weight of the composition. The method according to any one of claims 19 to 21, And wherein said cosmetically acceptable medium comprises water or a mixture of one or more organic solvents and water. The method of claim 22, Cosmetic composition, characterized in that the organic solvent is selected from C ₁ to C ₄ lower alcohols, alkylene polyols, polyol ethers, and mixtures thereof. The method according to any one of claims 19 to 23, Anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric or zwitterionic surfactants; Anionic polymers, cationic polymers, nonionic polymers, amphoteric or zwitterionic polymers; Thickeners; Nacreous agents; Opacifiers; UV blockers; Spices; Mineral oils, vegetable oils and / or synthetic oils; Fatty acid esters; dyes; Volatile or nonvolatile, organic modified or unorganically modified, cyclic or noncyclic, branched or non-branched silicones; Mineral or organic, natural or synthetic particles; antiseptic; And at least one additive selected from pH stabilizers.