Process for treating keratin fibres with carnitine salts or carnitine derivatives

Abstract

The present invention relates to a method for treating keratin fibres comprising applying to the fibres a composition comprising at least one chemical oxidizing agent, at least one (hydrogen) carbonate and at least one silicate, the method also using at least one carnitine salt or carnitine derivative.

Description

Technical Field

[0001] The present invention relates to a method for treating keratin fibers, which method comprises applying to the fibers a composition comprising at least one chemical oxidizing agent, at least one (bi)carbonate and at least one silicate, and also using at least one carnitine salt or carnitine derivative. Background Art

[0002] When people wish to change their hair color, especially when they wish to achieve a lighter color than their original color, hair lightening or bleaching is often required beforehand. In order to do this, lightening or bleaching products are used.

[0003] The lightening of hair is evaluated by the "depth of tone" which characterizes the degree or level of lightening. The concept of "tone" is based on a classification of natural shades, a tone separating each shade from the shade immediately behind or before it. This definition and classification of natural shades is well known to hair styling professionals and is disclosed in the book Sciences destraitements capillaires [The Science of Hair Care] by Charles Zviak, 1988, published by Masson, pages 215 and 278.

[0004] The depth of hue ranges from 1 (black) to 10 (very light gold), with one integer corresponding to one hue; the higher the number, the lighter the hue.

[0005] It is known practice to lighten or bleach the hair, in the vast majority of cases under alkaline pH conditions, with a lightening or bleaching composition containing at least one chemical oxidizing agent. The action of this oxidizing agent is to degrade the melanin of the hair, which, depending on the nature of the oxidizing agent present and the pH conditions, results in a more or less pronounced lightening of the fibers. Thus, for relatively mild lightening, the oxidizing agent is generally hydrogen peroxide. When a greater lightening is desired, in particular when the hair to be treated is dark, persulfates are generally used in the presence of hydrogen peroxide. However, the lightening obtained by the action of this combination is not always satisfactory, since the hair obtained has a rather unattractive orange-yellow hue that is very different from the natural hue, thereby complicating subsequent coloring by limiting it to obtaining warm tones. Moreover, lightening compositions based on persulfates may lead to a deterioration of the quality and integrity of the fibers. The hair may then end up deformed or damaged, which leads in particular to pronounced breakage during combing or detangling.

[0006] Therefore, in order to overcome these drawbacks, it is common practice to use hair care compositions that aim to condition the hair by giving it satisfactory cosmetic properties, in particular smoothness, gloss, softness, suppleness and lightness, and also good detangling properties, making it easy to comb and manage, so that the hair is easier to style and retain its shape. However, the conditioning effect obtained via these hair care compositions rapidly decreases over time and does not allow the hair cortex to be strengthened, in particular by improving the density of connections between the proteins present in the hair cortex, so as to protect or repair the hair and reduce its breakage, for example during combing or detangling. Moreover, in some cases, these care compositions may impair the dyeing or bleaching of the hair thus treated.

[0007] There is therefore a real need to develop a method that makes it possible to obtain an effective lightening of keratin fibers, in particular dark keratin fibers, with less yellowness and more natural results. Such a method would also have to pay greater attention to the quality and integrity of the fibers and make it possible in particular to maintain or even improve the quality and integrity of the keratin fibers and in particular to reduce their breakage, while avoiding compromising the lightening, in particular the deyellowing, of the fibers thus treated.

[0008] The Applicant has surprisingly found that all or some of these objects can be achieved by the method according to the invention. Summary of the invention

[0009] According to a first aspect, the subject of the invention is a method for treating keratin fibers, comprising:

[0010] a) applying to the keratin fibers one or more compounds D chosen from compounds of formula (I), solvates thereof, and mixtures thereof:

[0011]

[0012] In formula (I):

[0013] ■R 1 , R 2 and R 3 may be the same or different and represent (hydroxy)(C1-C4)alkyl;

[0014] ■R 4 represents a hydrogen atom, a (C1-C4)alkyl group or a group -C(O)R, wherein R is a (C1-C3)alkyl group;

[0015] ■R 5 represents a hydrogen atom, a (C1-C4) alkyl group, an alkali metal or an alkaline earth metal;

[0016] ■An -represents an organic anion;

[0017] ■ x is a stoichiometric coefficient selected to ensure the electroneutrality of the compound of formula (I);

[0018] b) applying to these keratin fibers a composition (B) comprising:

[0019] i) one or more chemical oxidants selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts, and mixtures thereof;

[0020] ii) one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof, preferably selected from carbonates, bicarbonates and mixtures thereof;

[0021] iii) one or more silicates;

[0022] Wherein compound D:

[0023] - in composition (B); and / or

[0024] - in a separate composition (A), which is applied to the keratin fibres before composition (B); and / or

[0025] - in a separate composition (C), which is applied to the keratin fibers after composition (B);

[0026] It should be understood that compositions (A) and (C) may be the same or different.

[0027] According to a second aspect, a subject of the invention is a composition (B) as defined previously, comprising one or more compounds D as defined previously.

[0028] According to a third aspect, a subject of the invention is the use of a composition (A) and / or (C) as previously defined for reducing damage to keratin fibres treated by a method for treating keratin fibres with a composition (B) as previously defined.

[0029] According to a fourth aspect, the subject of the invention is a multi-compartment device comprising:

[0030] ■ A first compartment containing a composition (B1) comprising:

[0031] - one or more chemical oxidants selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts, and mixtures thereof; and

[0032] ■ A second compartment containing a composition (B2) comprising:

[0033] - one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof; and

[0034] - one or more silicates; and

[0035] - optionally one or more colorants, preferably selected from direct dyes, oxidation dyes and mixtures thereof; and

[0036] ■ a third compartment containing a composition (A) or (C) as defined previously, which composition (A) or (C) may optionally comprise one or more colorants, preferably chosen from direct dyes, oxidative dyes and mixtures thereof; and

[0037] ■ a fourth compartment optionally containing a composition (B3) comprising one or more colorants, preferably chosen from direct dyes, oxidative dyes and mixtures thereof;

[0038] It will be appreciated that at least one of compositions (B1 ), (B2), (B3), (A) or (C) comprises one or more compounds D as defined previously. DETAILED DESCRIPTION

[0039] For the purposes of the present invention and unless otherwise indicated:

[0040] ■ The term "keratin fibers" means fibers of human or animal origin, such as hair, body hair, eyelashes, eyebrows, wool, angora, cashmere or fur. According to the invention, the keratin fibers are preferably human keratin fibers, more preferably hair.

[0041] ■ The term "salt" means an addition salt with an inorganic or organic acid or base. The addition salt with an acid is especially selected from the addition salt with an acid, such as hydrochloric acid, hydrobromic acid, sulfuric acid, citric acid, succinic acid, tartaric acid, lactic acid, toluenesulfonic acid, benzenesulfonic acid, phosphoric acid or acetic acid. The addition salt with a base is especially selected from the addition salt with a base, such as an alkalizing agent as defined below, especially an alkali metal hydroxide, alkaline earth metal hydroxide, ammonia, an amine or an alkanolamine.

[0042] ■ The term "alkyl" means a saturated, straight-chain or branched hydrocarbon group.

[0043] ■Term "(C x -C y )alkyl" means an alkyl group containing x to y carbon atoms, preferably methyl, ethyl, n-propyl, isopropyl or butyl, more preferably methyl or n-propyl, even more preferably methyl.

[0044] ■ The term "alkylene" means a linear or branched divalent saturated C1-C8, especially C1-C6, preferably C1-C4 hydrocarbon-based group, such as methylene, ethylene or propylene.

[0045] ■The term "hydroxyl (C x -C y ") alkyl" means a (C) group in which at least one of the hydrogen atoms is replaced by a hydroxyl group (-OH) x -C y )alkyl.

[0046] ■The term "alkoxy" means an alkyl group bonded to an oxygen atom.

[0047] ■Term "(C x -C y )alkoxy" means an alkoxy group containing x to y carbon atoms.

[0048] ■The term "hydroxyl (C x -C y The term "alkoxy" refers to a (C) group in which at least one of the hydrogen atoms is replaced by a hydroxy group (-OH). x -C y )alkoxy.

[0049] ■The term "(hydroxy)(C x -C y ) alkyl" means hydroxyl (C x -C y ) alkyl or (C x -C y )alkyl.

[0050] ■The term "(hydroxy)(C x -C y ) alkoxy means a hydroxyl group (C x -C y ) alkoxy or (C x -C y )alkoxy.

[0051] ■The term "(hetero)cycle" means a heterocyclic ring or a carbocyclic ring.

[0052] ■ The term "heterocycle" means a 4- to 8-membered, preferably a 5- or 6-membered, saturated or unsaturated or aromatic cyclic group, the ring members of which consist of carbon atoms and at least one heteroatom selected from the group consisting of O, S and N, preferably O and N. Heterocycle represents, for example, morpholinyl, piperidinyl, tetrahydrofuranyl or pyrrolidinyl.

[0053] ■ The term "carbocycle" means a 4- to 8-membered, preferably a 5- or 6-membered, saturated or unsaturated cyclic group, the ring members of which consist of carbon atoms. Carbocycle represents, for example, a cyclopentyl or cyclohexyl ring.

[0054] ■ The term "aryl" means a fused or non-fused, monocyclic or polycyclic carbon-based group containing 6 to 22 carbon atoms, and wherein at least one ring is aromatic. Preferably, the aryl group is phenyl, biphenyl, naphthyl, anthracenyl or tetrahydronaphthyl, and more preferably phenyl.

[0055] An "aryl" or "heterocyclic" or "carbocyclic" group or the aryl or heterocyclic or carbocyclic part of a group may be substituted by at least one substituent carried by a carbon atom, selected from:

[0056] - (C1-C6) alkyl, preferably (C1-C4) alkyl, which is optionally substituted by one or more groups selected from hydroxy and (C1-C2) alkoxy;

[0057] - halogen atoms such as chlorine;

[0058] - hydroxyl or thiol groups;

[0059] -(C1-C6)alkoxy or (C1-C6)alkylthio;

[0060] -(C2-C4)(poly)hydroxyalkoxy.

[0061] The (hetero)cyclic group or the non-aromatic part of the aryl group may also be substituted by one or more oxo groups.

[0062] ■ The term "protecting group for the phenolic functionality" means protecting groups such as those described in Greene's Protective Groups in Organic Synthesis, PGM Wutz, T. Greene, published by Wiley-Blackwell,

[0063] Acyl groups are preferred, especially acetyl groups.

[0064] ■ The term "silicate" means a salt of silicic acid.

[0065] ■ The term "colorant" means oxidation dye, direct dye or pigment.

[0066] ■ The term "oxidation dye" means an oxidation dye precursor selected from oxidation bases and couplers. Oxidation bases and couplers are colorless or slightly colored compounds which form colored substances via a condensation reaction in the presence of an oxidizing agent.

[0067] ■ The term "direct dyes" means natural and / or synthetic dyes other than oxidation dyes, including in the form of extracts. These are colored compounds that will spread on the surface on the fibers. They can be ionic or nonionic, that is, anionic, cationic, neutral or nonionic.

[0068] ■ The term "chemical oxidant" means an oxidant other than atmospheric oxygen.

[0069] Unless otherwise indicated, when a compound is mentioned in the present patent application, this also includes its optical isomers, its geometric isomers, its tautomers, its salts or solvates thereof (such as hydrates), and mixtures thereof.

[0070] The terms "at least one" and "one or more" are synonymous and can be used interchangeably.

[0071] The expressions "lightening" and "bleaching" are synonymous and can be used interchangeably.

[0072] method

[0073] According to a first aspect, a subject of the invention is a method for treating keratin fibers as previously defined.

[0074] According to a preferred embodiment, the method according to the invention is a method for lightening keratin fibers.

[0075] The Applicant has surprisingly observed that the process according to the invention makes it possible to obtain an effective lightening of keratin fibres, with less yellowish and more natural results.

[0076] When comparing the color of keratin fibers treated by the process according to the invention with the color of keratin fibers treated by a process using a lightening composition known from the prior art, it is observed that, at equal intensity levels L*, the values ​​of b* measured in the CIE L*a*b* system are lower for the process according to the invention than for the process using a lightening composition known from the prior art.

[0077] Furthermore, the method according to the invention pays greater attention to the quality of the fibers and makes it possible in particular to maintain or even improve the quality of keratin fibers and in particular to reduce their breakage, while avoiding impairment of the lightening, and in particular the deyellowing, of the fibers thus treated.

[0078] According to a preferred embodiment, compound D is in composition (B).

[0079] According to another preferred embodiment, compound D is in a separate composition (A) which is applied to the keratin fibres before composition (B).

[0080] According to another preferred embodiment, compound D is in a separate composition (C) which is applied to the keratin fibers after composition (B).

[0081] Combinations of these different embodiments are also conceivable.

[0082] Compound D

[0083] Compound D is present in composition (A) in a total content by weight preferably ranging from 1% to 25% by weight, more preferably ranging from 5% to 20% by weight, relative to the total weight of composition (A).

[0084] Compound D is present in composition (B) in a total content by weight preferably ranging from 1% to 20% by weight, more preferably ranging from 2% to 15% by weight, even more preferably ranging from 2% to 12% by weight, relative to the total weight of composition (B).

[0085] Compound D is preferably present in composition (C) in a total content by weight preferably ranging from 1% to 25% by weight, more preferably ranging from 2% to 20% by weight, even more preferably ranging from 2% to 15% by weight relative to the total weight of composition (C).

[0086] The cationic part of the compound of formula (I) is carnitine or a derivative thereof, and the anionic part of the compound of formula (I) is An - It is an organic anion.

[0087] Anion part

[0088] Preferably, An - represents an organic anion selected from the following:

[0089] □ Type - Compounds of OC(O)-ALK-C(O)-OM(IIa),

[0090] in:

[0091] -ALK represents (C1-C6)alkylene, preferably (C2-C4)alkylene, optionally substituted by one or more hydroxyl groups (-OH);

[0092] -M represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge or a hydrogen atom;

[0093] □ A compound of the following formula (IIb), (IIIb) or (IVb):

[0094]

[0095] in:

[0096] -R 6 To R 10 Independently of each other:

[0097] ● Hydrogen atoms;

[0098] ● (C1-C6) alkyl or (C1-C6) alkoxy, (C1-C6) alkyl or (C1-C6) alkoxy is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2; R represents a hydrogen atom or (C1-C4) alkyl, R' and R" independently represent a hydrogen atom, (C1-C4) alkyl or (C1-C4) alkylcarbonyl such as acetyl, it being understood that the group -NR'R" is not a -NH2 group;

[0099] ●Halogen atoms;

[0100] ● a group -OX, in which X represents a hydrogen atom or a protecting group for the phenol function, such as an acyl group, in particular an acetyl group;

[0101] It should be understood that two adjacent groups R 6 To R 10 They can also form, together with the carbon atoms that carry them, a saturated or unsaturated or aromatic 5- or 6-membered (hetero) ring;

[0102] -R a , R b , R c , R d , R e and R f Independently of each other:

[0103] ● Hydrogen atoms;

[0104] ● (C1-C6) alkyl, which is optionally substituted by one or more identical or different groups selected from the group consisting of: -OR, -NR'R", -C(O)OR, -OC(O)-R, (hetero)cycle, -C(O)-R, -NH-C(O)-R, -C(O)-NH-R, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0105] ● (C1-C6) alkoxy, which is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0106] ●Halogen atoms;

[0107] ● a group -OX, wherein X is as previously defined;

[0108] It should be understood that:

[0109] ■(R a and R b ) and / or (R c and R d ) can form a C=O bond together with the carbon atom that carries them;

[0110] ■R a and R b may, together with the carbon atoms that carry them, form a saturated or unsaturated 4- to 8-membered, in particular 4- to 6-membered, and more particularly 5- or 6-membered carbocyclic ring;

[0111] ■R a or R b or R c or R d Can be used with R 6 or R 10 Together with the carbon atom carrying them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring;

[0112] - represents a single bond or an olefinic double bond, it should be understood that when When it represents an olefinic double bond, R b and R c does not exist;

[0113] -p is an integer equal to 0 or 1;

[0114] -r is an integer equal to 0 or 1;

[0115] -R 11 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge;

[0116] □Compound of the following formula (IIc):

[0117]

[0118] in:

[0119] -X 1 , X 2 , X 3 and X 4 Independently of each other, represents a nitrogen atom or CR 7 It should be understood that X 1 , X 2 , X 3 and X 4At least two of them represent CR 7 ;

[0120] -R 6 and the substituent R 7 independently represent a hydrogen atom or a group selected from the following:

[0121] ● A group of the following formula (a) or (b) or (c):

[0122]

[0123] In formula (b), R 8 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge;

[0124] ●Hydroxyl group;

[0125] ●thiol group or SR';

[0126] ●(Hydroxy)(C1-C4)alkoxy;

[0127] ● Group -CO2R';

[0128] ● Group -OCOR';

[0129] ● (C1-C4) alkyl, which may be substituted by one or more identical or different groups selected from -CO2R', -OR', -OH, -SH, -SR', -NR a R b 、-CO-NR' a R' b and / or optionally interrupted by one or more non-adjacent oxygen atoms;

[0130] ●Halogen atoms;

[0131] -CF3 group;

[0132] ●R'-CO-NR' group a -;

[0133] ●Group-NR a R b ;

[0134] ●Group R' a R' b N-CO-;

[0135] ●Cyanide;

[0136] in:

[0137] □R' represents (C1-C4) alkyl; and

[0138] ■R a and Rb Each independently represents a hydrogen atom or a (C1-C4) alkyl group. It should be understood that R a and R b At least one of is not H; and

[0139] ■R' a and R' b independently of one another represent a hydrogen atom or a (hydroxy)(C1-C4)alkyl group, preferably a hydrogen atom or a (C1-C4)alkyl group;

[0140] It should be understood that:

[0141] ·R a and R b Together with the nitrogen atom carrying them, they can form a 5- or 6-membered heterocyclic ring;

[0142] -When X 2 and X 3 Each represents a group CR 7 When the two substituents R 7 Together with the carbon atoms that carry them, they can form a 5- or 6-membered (hetero) ring;

[0143] -R 6 and / or substituent R 7 At least one of them represents a group of formula (a) or (b) or (c), preferably a group of formula (a);

[0144] ■ and mixtures thereof.

[0145] Compound of formula (IIa)

[0146] The compound of formula (IIa) is preferably selected from the following compounds of formula (IIa1), (IIa2), (IIa3), (IIa4), (IIa5) or (IIa6):

[0147]

[0148] Compounds of formula (IIb), (IIIb) or (IVb)

[0149] First variant

[0150] According to a first variant, the compound of formula (IIb), (IIIb) or (IVb) is chosen from the following compounds of formula (IIb1), (IIIb1) or (IVb1), respectively:

[0151]

[0152] in:

[0153] -R 6 To R 10Independently of each other:

[0154] ● Hydrogen atoms;

[0155] ● (C1-C6) alkyl or (C1-C6) alkoxy, (C1-C6) alkyl or (C1-C6) alkoxy is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2; R represents a hydrogen atom or (C1-C4) alkyl, R' and R" independently represent a hydrogen atom, (C1-C4) alkyl or (C1-C4) alkylcarbonyl such as acetyl, it being understood that the group -NR'R" is not a -NH2 group;

[0156] ●Halogen atoms;

[0157] ● a group -OX, in which X represents a hydrogen atom or a protecting group for the phenol function, such as an acyl group, in particular an acetyl group;

[0158] It should be understood that two adjacent groups R 6 To R 10 They can also form, together with the carbon atoms that carry them, a saturated or unsaturated or aromatic 5- or 6-membered (hetero) ring;

[0159] -R a and R b Independently of each other:

[0160] ● Hydrogen atoms;

[0161] ● (C1-C6) alkyl, which is optionally substituted by one or more identical or different groups selected from the group consisting of: -OR, -NR'R", -C(O)OR, -OC(O)-R, (hetero)cycle, -C(O)-R, -NH-C(O)-R, -C(O)-NH-R, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0162] ● (C1-C6) alkoxy, which is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0163] ●Halogen atoms;

[0164] ● a group -OX, wherein X is as previously defined;

[0165] It should be understood that:

[0166] ■R a and R b can form C=O bonds with the carbon atom that carries them;

[0167] ■R a and R b may, together with the carbon atoms that carry them, form a saturated or unsaturated 4- to 8-membered, in particular 4- to 6-membered, and more particularly 5- or 6-membered carbocyclic ring;

[0168] ■R a or R b Can be used with R 6 or R 10 Together with the carbon atom that carries them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring.

[0169] -R 11 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge.

[0170] Preferably, according to this first variant, R 6 To R 10 Independently of each other:

[0171] ● Hydrogen atoms;

[0172] ●(C1-C4)alkyl;

[0173] ●(C1-C4)alkoxy;

[0174] ●Hydroxy(C1-C4)alkyl;

[0175] ●Halogen atoms;

[0176] ●Hydroxyl group;

[0177] ●-OC(O)-CH3 group;

[0178] It should be understood that two adjacent groups R 6 To R 10 Together with the carbon atom that carries them, they can also form a saturated 5- or 6-membered (hetero) ring.

[0179] More preferably, according to this first variant, R 6 To R 10 Independently of each other:

[0180] ● Hydrogen atoms;

[0181] ●(C1-C4)alkyl;

[0182] ●(C1-C4)alkoxy;

[0183] ●Hydroxy(C1-C4)alkyl;

[0184] ●Hydroxy.

[0185] Preferably, according to this first variant, R a and R b Independently of each other:

[0186] ● Hydrogen atoms;

[0187] ●(C1-C4)alkyl;

[0188] ●Hydroxy(C1-C4)alkyl;

[0189] ●(C1-C4)alkoxy;

[0190] ●Halogen atoms;

[0191] ●Hydroxyl group;

[0192] ●-OC(O)-CH3 group;

[0193] It should be understood that:

[0194] ■R a and R b can form C=O bonds with the carbon atom that carries them;

[0195] ■R a or R b Can be used with R 6 or R 10 Together with the carbon atom that carries them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring.

[0196] More preferably, according to this first variant, R a and R b Independently of each other:

[0197] ● Hydrogen atoms;

[0198] ●(C1-C4)alkyl;

[0199] ●(C1-C4)alkoxy;

[0200] ●Hydroxy(C1-C4)alkyl;

[0201] ●Hydroxy.

[0202] Second variant

[0203] According to a second variant, the compound of formula (IIb), (IIIb) or (IVb) is chosen from the following compounds of formula (IIb2), (IIIb2) or (IVb2), respectively:

[0204]

[0205] in:

[0206] -R 6 To R 10 Independently of each other:

[0207] ● Hydrogen atoms;

[0208] ● (C1-C6) alkyl or (C1-C6) alkoxy, (C1-C6) alkyl or (C1-C6) alkoxy is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2; R represents a hydrogen atom or (C1-C4) alkyl, R' and R" independently represent a hydrogen atom, (C1-C4) alkyl or (C1-C4) alkylcarbonyl such as acetyl, it being understood that the group -NR'R" is not a -NH2 group;

[0209] ●Halogen atoms;

[0210] ● a group -OX, in which X represents a hydrogen atom or a protecting group for the phenol function, such as an acyl group, in particular an acetyl group;

[0211] It should be understood that two adjacent groups R 6 To R 10 They can also form, together with the carbon atoms that carry them, a saturated or unsaturated or aromatic 5- or 6-membered (hetero) ring;

[0212] -R 11 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge.

[0213] Preferably, according to this second variant, R 6 To R 10 Independently of each other:

[0214] ● Hydrogen atoms;

[0215] ●(C1-C4)alkyl;

[0216] ●(C1-C4)alkoxy;

[0217] ●Hydroxy(C1-C4)alkyl;

[0218] ●Halogen atoms;

[0219] ●Hydroxyl group;

[0220] ●-OC(O)-CH3 group;

[0221] It should be understood that two adjacent groups R 6 To R 10 Together with the carbon atom that carries them, they can also form a saturated 5- or 6-membered (hetero) ring.

[0222] More preferably, according to this second variant, R 6 To R 10 Independently of each other:

[0223] ● Hydrogen atoms;

[0224] ●(C1-C4)alkyl;

[0225] ●(C1-C4)alkoxy;

[0226] ●Hydroxy(C1-C4)alkyl;

[0227] ●Hydroxy.

[0228] Third variant

[0229] According to a third variant, the compound of formula (IIb), (IIIb) or (IVb) is chosen from the following compounds of formula (IIb3), (IIIb3) or (IVb3), respectively:

[0230]

[0231] in:

[0232] -R 6 To R 10 Independently of each other:

[0233] ● Hydrogen atoms;

[0234] ● (C1-C6) alkyl or (C1-C6) alkoxy, (C1-C6) alkyl or (C1-C6) alkoxy is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2; R represents a hydrogen atom or (C1-C4) alkyl, R' and R" independently represent a hydrogen atom, (C1-C4) alkyl or (C1-C4) alkylcarbonyl such as acetyl, it being understood that the group -NR'R" is not a -NH2 group;

[0235] ●Halogen atoms;

[0236] ● a group -OX, in which X represents a hydrogen atom or a protecting group for the phenol function, such as an acyl group, in particular an acetyl group;

[0237] It should be understood that two adjacent groups R 6 To R 10 They can also form, together with the carbon atoms that carry them, a saturated or unsaturated or aromatic 5- or 6-membered (hetero) ring;

[0238] -R b express:

[0239] ● Hydrogen atoms;

[0240] ● (C1-C6) alkyl, which is optionally substituted by one or more identical or different groups selected from the group consisting of: -OR, -NR'R", -C(O)OR, -OC(O)-R, (hetero)cycle, -C(O)-R, -NH-C(O)-R, -C(O)-NH-R, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0241] ● (C1-C6) alkoxy, which is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0242] ●Halogen atoms;

[0243] ● a group -OX, wherein X is as previously defined;

[0244] It should be understood that:

[0245] ■R b Can be used with R 6 or R 10 Together with the carbon atom that carries them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring.

[0246] -R 11 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge.

[0247] Preferably, according to this third variant, R 6 To R 10 Independently of each other:

[0248] ● Hydrogen atoms;

[0249] ●(C1-C4)alkyl;

[0250] ●(C1-C4)alkoxy;

[0251] ●Hydroxy(C1-C4)alkyl;

[0252] ●Halogen atoms;

[0253] ●Hydroxyl group;

[0254] ●-OC(O)-CH3 group;

[0255] It should be understood that two adjacent groups R 6 To R 10 Together with the carbon atom that carries them, they can also form a saturated 5- or 6-membered (hetero) ring.

[0256] More preferably, according to this third variant, R 6 To R 10 Independently of each other:

[0257] ● Hydrogen atoms;

[0258] ●(C1-C4)alkyl;

[0259] ●(C1-C4)alkoxy;

[0260] ●Hydroxy(C1-C4)alkyl;

[0261] ●Hydroxy.

[0262] Preferably, according to this third variant, R b express:

[0263] ● Hydrogen atoms;

[0264] ●(C1-C4)alkyl;

[0265] ●Hydroxy(C1-C4)alkyl;

[0266] ●(C1-C4)alkoxy;

[0267] ●Halogen atoms;

[0268] ●Hydroxyl group;

[0269] ●-OC(O)-CH3 group;

[0270] It should be understood that:

[0271] ■R b Can be used with R 6 or R 10 Together with the carbon atom that carries them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring.

[0272] More preferably, according to this third variant, R b express:

[0273] ● Hydrogen atoms;

[0274] ●(C1-C4)alkyl;

[0275] ●(C1-C4)alkoxy;

[0276] ●Hydroxy(C1-C4)alkyl;

[0277] ●Hydroxy.

[0278] Fourth variant

[0279] According to a fourth variant, the compound of formula (IIb), (IIIb) or (IVb) is chosen from the following compounds of formula (IIb4), (IIIb4) or (IVb4), respectively:

[0280]

[0281] in:

[0282] -R 6 To R 10 Independently of each other:

[0283] ● Hydrogen atoms;

[0284] ● (C1-C6) alkyl or (C1-C6) alkoxy, (C1-C6) alkyl or (C1-C6) alkoxy is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2; R represents a hydrogen atom or (C1-C4) alkyl, R' and R" independently represent a hydrogen atom, (C1-C4) alkyl or (C1-C4) alkylcarbonyl such as acetyl, it being understood that the group -NR'R" is not a -NH2 group;

[0285] ●Halogen atoms;

[0286] ● a group -OX, in which X represents a hydrogen atom or a protecting group for the phenol function, such as an acyl group, in particular an acetyl group;

[0287] It should be understood that two adjacent groups R 6 To R 10 They can also form, together with the carbon atoms that carry them, a saturated or unsaturated or aromatic 5- or 6-membered (hetero) ring;

[0288] -R a , R b , R c and R d Independently of each other:

[0289] ● Hydrogen atoms;

[0290] ● (C1-C6) alkyl, which is optionally substituted by one or more identical or different groups selected from the group consisting of: -OR, -NR'R", -C(O)OR, -OC(O)-R, (hetero)cycle, -C(O)-R, -NH-C(O)-R, -C(O)-NH-R, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0291] ● (C1-C6) alkoxy, which is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0292] ●Halogen atoms;

[0293] ● a group -OX, wherein X is as previously defined;

[0294] It should be understood that:

[0295] ■(R a and R b ) and / or (R c and R d ) can form a C=O bond together with the carbon atom that carries them;

[0296] ■R a and R b may, together with the carbon atoms that carry them, form a saturated or unsaturated 4- to 8-membered, in particular 4- to 6-membered, and more particularly 5- or 6-membered carbocyclic ring;

[0297] ■R a or R b or R c or R d Can be used with R 6 or R 10 Together with the carbon atom carrying them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring;

[0298] -R 11 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge.

[0299] Preferably, according to this fourth variant, R 6 To R 10 Independently of each other:

[0300] ● Hydrogen atoms;

[0301] ●(C1-C4)alkyl;

[0302] ●(C1-C4)alkoxy;

[0303] ●Hydroxy(C1-C4)alkyl;

[0304] ●Halogen atoms;

[0305] ●Hydroxyl group;

[0306] ●-OC(O)-CH3 group;

[0307] It should be understood that two adjacent groups R 6 To R 10 Together with the carbon atom that carries them, they can also form a saturated 5- or 6-membered (hetero) ring.

[0308] More preferably, according to this fourth variant, R 6 To R 10 Independently of each other:

[0309] ● Hydrogen atoms;

[0310] ●(C1-C4)alkyl;

[0311] ●(C1-C4)alkoxy;

[0312] ●Hydroxy(C1-C4)alkyl;

[0313] ●Hydroxy.

[0314] Preferably, according to this fourth variant, R a , R b , R c and R d Independently of each other:

[0315] ● Hydrogen atoms;

[0316] ●(C1-C4)alkyl;

[0317] ●Hydroxy(C1-C4)alkyl;

[0318] ●(C1-C4)alkoxy;

[0319] ●Halogen atoms;

[0320] ●Hydroxyl group;

[0321] ●-OC(O)-CH3 group;

[0322] It should be understood that:

[0323] ■(R a and R b ) and / or (R c and R d ) can form a C=O bond together with the carbon atom that carries them;

[0324] ■R a or R b or R c or R d Can be used with R 6 or R 10 Together with the carbon atom that carries them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring.

[0325] More preferably, according to this fourth variant, R a , R b , R c and R d Independently of each other:

[0326] ● Hydrogen atoms;

[0327] ●(C1-C4)alkyl;

[0328] ●(C1-C4)alkoxy;

[0329] ●Hydroxy(C1-C4)alkyl;

[0330] ●Hydroxy.

[0331] Fifth variant

[0332] According to a fifth variant, the compound of formula (IIb), (IIIb) or (IVb) is chosen from the following compounds of formula (IIb5), (IIIb5) or (IVb5), respectively:

[0333]

[0334] in:

[0335] -R 6 To R 10 Independently of each other:

[0336] ● Hydrogen atoms;

[0337] ● (C1-C6) alkyl or (C1-C6) alkoxy, (C1-C6) alkyl or (C1-C6) alkoxy is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2; R represents a hydrogen atom or (C1-C4) alkyl, R' and R" independently represent a hydrogen atom, (C1-C4) alkyl or (C1-C4) alkylcarbonyl such as acetyl, it being understood that the group -NR'R" is not a -NH2 group;

[0338] ●Halogen atoms;

[0339] ● a group -OX, in which X represents a hydrogen atom or a protecting group for the phenol function, such as an acyl group, in particular an acetyl group;

[0340] It should be understood that two adjacent groups R 6 To R 10 They can also form, together with the carbon atoms that carry them, a saturated or unsaturated or aromatic 5- or 6-membered (hetero) ring;

[0341] -R a and R d Independently of each other:

[0342] ● Hydrogen atoms;

[0343] ● (C1-C6) alkyl, which is optionally substituted by one or more identical or different groups selected from the group consisting of: -OR, -NR'R", -C(O)OR, -OC(O)-R, (hetero)cycle, -C(O)-R, -NH-C(O)-R, -C(O)-NH-R, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0344] ● (C1-C6) alkoxy, which is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0345] ●Halogen atoms;

[0346] ● a group -OX, wherein X is as previously defined;

[0347] It should be understood that:

[0348] -R 11 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge.

[0349] -CR a With-CR c The olefinic double bonds between may be cis or trans.

[0350] Preferably, according to this fifth variant, R 6 To R 10 Independently of each other:

[0351] ● Hydrogen atoms;

[0352] ●(C1-C4)alkyl;

[0353] ●(C1-C4)alkoxy;

[0354] ●Hydroxy(C1-C4)alkyl;

[0355] ●Halogen atoms;

[0356] ●Hydroxyl group;

[0357] ●-OC(O)-CH3 group;

[0358] It should be understood that two adjacent groups R 6 To R 10 Together with the carbon atom that carries them, they can also form a saturated 5- or 6-membered (hetero) ring.

[0359] More preferably, according to the fifth variant, R 6 To R 10 Independently of each other:

[0360] ● Hydrogen atoms;

[0361] ●(C1-C4)alkyl;

[0362] ●(C1-C4)alkoxy;

[0363] ●Hydroxy(C1-C4)alkyl;

[0364] ●Hydroxy.

[0365] Preferably, according to this fifth variant, R a and R c Independently of each other:

[0366] ● Hydrogen atoms;

[0367] ●(C1-C4)alkyl;

[0368] ●Hydroxy(C1-C4)alkyl;

[0369] ●(C1-C4)alkoxy;

[0370] ●Halogen atoms;

[0371] ●Hydroxyl group;

[0372] ●-OC(O)-CH3 group.

[0373] More preferably, according to the fifth variant, R a and R c Independently of each other:

[0374] ● Hydrogen atoms;

[0375] ●(C1-C4)alkyl;

[0376] ●(C1-C4)alkoxy;

[0377] ●Hydroxy(C1-C4)alkyl;

[0378] ●Hydroxy.

[0379] Sixth variant

[0380] According to a sixth variant, the compound of formula (IIb), (IIIb) or (IVb) is selected from the following compounds of formula (IIb6), (IIIb6) or (IVb6), respectively:

[0381]

[0382] in:

[0383] -R 6 To R 10 Independently of each other:

[0384] ● Hydrogen atoms;

[0385] ● (C1-C6) alkyl or (C1-C6) alkoxy, (C1-C6) alkyl or (C1-C6) alkoxy is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2; R represents a hydrogen atom or (C1-C4) alkyl, R' and R" independently represent a hydrogen atom, (C1-C4) alkyl or (C1-C4) alkylcarbonyl such as acetyl, it being understood that the group -NR'R" is not a -NH2 group;

[0386] ●Halogen atoms;

[0387] ● a group -OX, in which X represents a hydrogen atom or a protecting group for the phenol function, such as an acyl group, in particular an acetyl group;

[0388] It should be understood that two adjacent groups R 6 To R 10 They can also form, together with the carbon atoms that carry them, a saturated or unsaturated or aromatic 5- or 6-membered (hetero) ring;

[0389] -R a , R b , R c , R d , R e and R f Independently of each other:

[0390] ● Hydrogen atoms;

[0391] ● (C1-C6) alkyl, which is optionally substituted by one or more identical or different groups selected from the group consisting of: -OR, -NR'R", -C(O)OR, -OC(O)-R, (hetero)cycle, -C(O)-R, -NH-C(O)-R, -C(O)-NH-R, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0392] ● (C1-C6) alkoxy, which is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group;

[0393] ●Halogen atoms;

[0394] ● a group -OX, wherein X is as previously defined;

[0395] It should be understood that:

[0396] ■(R a and R b ) and / or (R c and R d ) can form a C=O bond together with the carbon atom that carries them;

[0397] ■R a and R b may, together with the carbon atoms that carry them, form a saturated or unsaturated 4- to 8-membered, in particular 4- to 6-membered (hetero)cyclic ring, and more particularly a 5- or 6-membered carbocyclic ring;

[0398] ■R a or R b or R c or R d Can be used with R 6 or R 10 Together with the carbon atom carrying them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring;

[0399] -R 11 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge.

[0400] Preferably, according to this sixth variant, R 6 To R 10 Independently of each other:

[0401] ● Hydrogen atoms;

[0402] ●(C1-C4)alkyl;

[0403] ●(C1-C4)alkoxy;

[0404] ●Hydroxy(C1-C4)alkyl;

[0405] ●Halogen atoms;

[0406] ●Hydroxyl group;

[0407] ●-OC(O)-CH3 group;

[0408] It should be understood that two adjacent groups R 6 To R 10 Together with the carbon atom that carries them, they can also form a saturated 5- or 6-membered (hetero) ring.

[0409] More preferably, according to the sixth variant, R 6 To R 10 Independently of each other:

[0410] ● Hydrogen atoms;

[0411] ●(C1-C4)alkyl;

[0412] ●(C1-C4)alkoxy;

[0413] ●Hydroxy(C1-C4)alkyl;

[0414] ●Hydroxy.

[0415] Preferably, according to this sixth variant, R a , R b , R c , R d , R e and R fIndependently of each other:

[0416] ● Hydrogen atoms;

[0417] ●(C1-C4)alkyl;

[0418] ●Hydroxy(C1-C4)alkyl;

[0419] ●(C1-C4)alkoxy;

[0420] ●Halogen atoms;

[0421] ●Hydroxyl group;

[0422] ●-OC(O)-CH3 group;

[0423] It should be understood that:

[0424] ■(R a and R b ) and / or (R c and R d ) can form a C=O bond together with the carbon atom that carries them;

[0425] ■R a or R b or R c or R d Can be used with R 6 or R 10 Together with the carbon atom that carries them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring.

[0426] More preferably, according to the sixth variant, R a , R b , R c , R d , R e and R f Independently of each other:

[0427] ● Hydrogen atoms;

[0428] ●(C1-C4)alkyl;

[0429] ●(C1-C4)alkoxy;

[0430] ●Hydroxy(C1-C4)alkyl;

[0431] ●Hydroxy.

[0432] Compound of formula (IIc)

[0433] In the compound of formula (IIc), the substituent R 7 Can be the same or different.

[0434] Preferably, R6 and the substituent R 7 independently represent a hydrogen atom or a group selected from the following:

[0435] ● a group of formula (a) or (b) or (c) as defined above, preferably a group of formula (a);

[0436] ●Hydroxyl group;

[0437] ●(C1-C4)alkoxy.

[0438] First variant

[0439] According to a first variant, the compound of formula (IIc) is such that: R 6 and the substituent R 7 At least one of them represents a group of formula (a) or (b) or (c), preferably a group of formula (a).

[0440] Second variant

[0441] According to a second variant, the compound of formula (IIc) is such that: X 1 , X 2 , X 3 and X 4 Each indicates CR 7 , where R 7 As defined above.

[0442] According to a particular embodiment of this second variant, R 6 It represents a group of formula (a), (b) or (c), preferably a group of formula (a).

[0443] Third variant

[0444] According to a third variant, the compound of formula (IIc) is such that: X 1 , X 2 , X 3 and X 4 Only one of them represents a nitrogen atom.

[0445] According to a particular embodiment of this third variant, R 6 It represents a group of formula (a), (b) or (c), preferably a group of formula (a).

[0446] According to another particular embodiment of this third variant, R 6 represents a group of formula (a) or (b) or (c), preferably a group of formula (a), and R 7 independently represent a hydrogen atom, a hydroxyl group or a group of formula (a).

[0447] According to a specific embodiment, the compound of formula (IIc) is such that: X 1 , X 2 and X 3 Only one of them represents a nitrogen atom.

[0448] Fourth variant

[0449] According to a fourth variant, the compound of formula (IIc) is such that: X 1 , X 2 , X 3 and X 4 Two and only two of them represent nitrogen atoms.

[0450] According to a particular embodiment of this fourth variant, the compound of formula (IIc) is such that: X 2 represents a nitrogen atom and X 3 or X 4 Represents a nitrogen atom.

[0451] According to a particular embodiment of this fourth variant, R 6 It represents a group of formula (a), (b) or (c), preferably a group of formula (a).

[0452] Compositions (A) and / or (B) and / or (C) may contain different anions An - A mixture of compounds D such as those described above.

[0453] Preferably, An - represents an organic anion selected from the compounds of the following formulae 1 to 46:

[0454]

[0455]

[0456]

[0457]

[0458]

[0459]

[0460]

[0461]

[0462]

[0463]

[0464] More preferably, it is selected from the compounds of formula 4, 7, 10 or 36, and even more preferably, it is selected from the compounds of formula 4, 7 or 10.

[0465] According to a preferred embodiment, An - represents an organic anion selected from the compounds of the following formulae 1 to 6:

[0466]

[0467] According to the preferred embodiment, An - Preferably, the organic anion of formula 4 is represented.

[0468] According to another preferred embodiment, An - represents an organic anion selected from the compounds of the following formulae 7 to 35:

[0469]

[0470]

[0471]

[0472]

[0473]

[0474]

[0475]

[0476] According to another preferred embodiment, An - Preferably, an organic anion of formula 7 or 10 is represented.

[0477] According to another preferred embodiment, An - represents an organic anion selected from the compounds of the following formulae 36 to 46:

[0478]

[0479]

[0480]

[0481] According to another preferred embodiment, An - Preferably, an organic anion of formula 36 is represented.

[0482] Cationic part

[0483] In which R 5In the case of an alkali metal, it may be sodium.

[0484] Preferably, the compound of formula (I) is a carnitine salt. 1 , R 2 and R 3 represents a methyl group, and R 4 and R 5 Represents a hydrogen atom.

[0485] Preferably, the cationic part of the compound of formula (I) is in the form of an optical isomer of L (levorotatory) or D (dextrorotatory) configuration, more preferably L configuration.

[0486] The compound of formula (I) can be obtained by extemporaneously mixing a first composition comprising the cationic part of the compound of formula (I), optionally in salt form, and a second composition comprising the anionic part of the compound of formula (I), optionally in salt form. The mixing can be extemporaneous.

[0487] The compound of formula (I) is preferably selected from the compounds of the following formulae 1' to 46':

[0488]

[0489]

[0490]

[0491]

[0492]

[0493]

[0494]

[0495]

[0496]

[0497] More preferably, it is selected from the compounds of formula 4', 7', 10' or 36', and even more preferably, it is selected from the compounds of formula 4', 7' or 10'.

[0498] According to a preferred embodiment, composition (A) comprises a total content of colorants of less than 0.1% by weight, preferably less than 0.01% by weight, more preferably less than 0.001% by weight, relative to the total weight of composition (A), and / or composition (C) comprises a total content of colorants of less than 0.1% by weight, preferably less than 0.01% by weight, more preferably less than 0.001% by weight, relative to the total weight of composition (C).

[0499] According to a more preferred embodiment, composition (A) and / or composition (C) does not contain a colorant.

[0500] pH of compositions (A) and (C)

[0501] The pH of composition (A) is preferably greater than 7, more preferably in the range of 7 to 10, even more preferably in the range of 7.5 to 9.5.

[0502] The pH of composition (C) is preferably less than 7, more preferably in the range of 3 to 7, even more preferably in the range of 3.1 to 6.5, most preferably in the range of 3.5 to 6.

[0503] Composition (B)

[0504] According to a preferred embodiment, the composition (B) comprises:

[0505] i) hydrogen peroxide;

[0506] ii) one or more compounds selected from carbonates, bicarbonates and mixtures thereof;

[0507] iii) one or more silicates.

[0508] Chemical oxidants

[0509] Composition (B) comprises i) one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxygenated salts, and mixtures thereof.

[0510] The hydrogen peroxide generating system other than peroxide salts may be selected from urea peroxide, polymer complexes capable of releasing hydrogen peroxide, oxidases and mixtures thereof.

[0511] As examples of polymer complexes which can release hydrogen peroxide, mention may be made of polyvinylpyrrolidone / H2O2, in particular in powder form, and other polymer complexes described in US Pat. No. 5,008,093, US Pat. No. 3,376,110 and US Pat. No. 5,183,901.

[0512] Oxidase enzymes can generate hydrogen peroxide in the presence of a suitable substrate, such as glucose in the case of glucose oxidase or uric acid in the case of uricase.

[0513] According to a specific embodiment, hydrogen peroxide and / or a hydrogen peroxide generating system other than peroxide salts may be incorporated into the composition according to the invention just before applying the composition according to the invention to the keratin fibers. The intermediate composition comprising hydrogen peroxide and / or a hydrogen peroxide generating system other than peroxide salts may be called an oxidizing composition and may also contain various additional compounds or various auxiliaries conventionally used in compositions for lightening keratin fibers.

[0514] According to a preferred embodiment, composition (B) comprises hydrogen peroxide as chemical oxidizing agent.

[0515] The chemical oxidizing agent is preferably present in composition (B) in a total content ranging from 1% to 12% by weight, more preferably ranging from 3% to 9% by weight, even more preferably ranging from 3.5% to 8.5% by weight relative to the total weight of composition (B).

[0516] According to a preferred embodiment, hydrogen peroxide is present in composition (B) in a total content ranging from 1% to 12% by weight, preferably ranging from 3% to 9% by weight, more preferably ranging from 3.5% to 8.5% by weight relative to the total weight of composition (B).

[0517] Carbonate (bicarbonate) and / or bicarbonate (bicarbonate) generating system

[0518] Composition (B) further comprises ii) one or more compounds selected from the group consisting of carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof.

[0519] According to a preferred embodiment, composition (B) further comprises ii) one or more compounds selected from carbonates, bicarbonates and mixtures thereof.

[0520] According to a more preferred embodiment, composition (B) further comprises ii) one or more compounds selected from ammonium carbonate, ammonium bicarbonate and mixtures thereof.

[0521] Compound ii) is preferably present in composition (B) in a total content ranging from 0.01% to 20% by weight, preferably ranging from 1% to 15% by weight, more preferably ranging from 2% to 15% by weight, even more preferably ranging from 4% to 15% by weight relative to the total weight of composition (B).

[0522] Carbonates and / or carbonate generating systems

[0523] The term "carbonate generating system" means a system that generates carbonates in situ, such as carbon dioxide in water or percarbonate in water.

[0524] Preferably, the carbonate is selected from:

[0525] - alkali metal carbonates;

[0526] - Alkaline earth metal carbonates;

[0527] - lanthanide carbonates;

[0528] - Transition metal carbonates;

[0529] - bismuth carbonate;

[0530] - cadmium carbonate;

[0531] - thallium carbonate;

[0532] - zinc carbonate;

[0533] -Formula (N + R 1 R 2 R 3 R 4 )2,·CO3 2- A compound wherein R 1 , R 2 , R 3 and R 4 independently of one another represent a hydrogen atom or a (C1-C4)alkyl group which is optionally substituted by a hydroxyl group;

[0534] -guanidine carbonate;

[0535] - mixtures thereof.

[0536] More preferably, the carbonate is selected from the group consisting of sodium carbonate, potassium carbonate, cesium carbonate, lithium carbonate, magnesium carbonate, calcium carbonate, barium carbonate, strontium carbonate, cerium carbonate, lanthanum carbonate, yttrium carbonate, copper (II) carbonate, manganese carbonate, nickel carbonate, silver carbonate, zirconium carbonate, bismuth carbonate, cadmium carbonate, thallium carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate, tetraethylammonium carbonate, and mixtures thereof.

[0537] Even more preferably, the carbonate is selected from the group consisting of sodium carbonate, potassium carbonate, cesium carbonate, magnesium carbonate, calcium carbonate, cerium carbonate, manganese carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate and mixtures thereof.

[0538] Most preferably, the carbonate is selected from sodium carbonate, potassium carbonate, magnesium carbonate, calcium carbonate, ammonium carbonate and mixtures thereof.

[0539] According to a particularly preferred embodiment, the carbonate contained in composition (B) is ammonium carbonate.

[0540] The carbonates and / or carbonate generating systems are preferably present in composition (B) in a total content ranging from 0.01% to 20% by weight, more preferably ranging from 1% to 20% by weight, even more preferably ranging from 1% to 10% by weight, relative to the total weight of composition (B).

[0541] According to a preferred embodiment, the carbonate is present in composition (B) in a total content ranging from 0.01% to 20% by weight, preferably ranging from 1% to 20% by weight, more preferably ranging from 1% to 10% by weight, relative to the total weight of composition (B).

[0542] According to a preferred embodiment, compound ii) is selected from carbonates, carbonate generating systems and mixtures thereof, preferably selected from carbonates.

[0543] Bicarbonate and / or bicarbonate generating system

[0544] The term "bicarbonate generating system" means a system that generates bicarbonate in situ, such as carbon dioxide in water or by buffering carbonate with an inorganic or organic acid.

[0545] Preferably, the bicarbonate salt is selected from:

[0546] - alkali metal bicarbonates;

[0547] - alkaline earth metal bicarbonates;

[0548] -Formula N + R 1 R 2 R 3 R 4 ,·HCO3 - A compound wherein R 1 , R 2 , R 3 and R 4 independently of one another represent a hydrogen atom or a (C1-C4)alkyl group which is optionally substituted by a hydroxyl group;

[0549] -aminoguanidine bicarbonate;

[0550] - mixtures thereof.

[0551] More preferably, the bicarbonate salt is selected from the group consisting of sodium bicarbonate, potassium bicarbonate, lithium bicarbonate, cesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate, choline bicarbonate, triethylammonium bicarbonate, aminoguanidine bicarbonate, and mixtures thereof.

[0552] Even more preferably, the bicarbonate salt is selected from sodium bicarbonate, potassium bicarbonate, cesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate and mixtures thereof.

[0553] Most preferably, the bicarbonate salt is selected from sodium bicarbonate, potassium bicarbonate, ammonium bicarbonate and mixtures thereof.

[0554] According to a particularly preferred embodiment, the bicarbonate contained in composition (B) is ammonium bicarbonate.

[0555] The bicarbonate may originate from natural water, for example spring water from the Vichy basin or from La Roche Posay or Badoit water.

[0556] The bicarbonate and / or bicarbonate generating system is preferably present in composition (B) in a total content ranging from 0.01% to 20% by weight, more preferably ranging from 1% to 15% by weight, even more preferably ranging from 2% to 15% by weight, most preferably ranging from 4% to 15% by weight relative to the total weight of composition (B).

[0557] According to a preferred embodiment, the bicarbonate is present in a total content ranging from 0.01% to 20% by weight, preferably ranging from 1% to 15% by weight, more preferably ranging from 2% to 15% by weight, even more preferably ranging from 4% to 15% by weight relative to the total weight of composition (B).

[0558] According to a preferred embodiment, compound ii) is selected from bicarbonate, bicarbonate generating system and mixtures thereof, preferably selected from bicarbonate.

[0559] Silicate

[0560] Composition (B) further comprises iii) one or more silicates.

[0561] The silicate is preferably water soluble.

[0562] The term "water-soluble silicate" means a silicate having a solubility in water of greater than 0.5% by weight, preferably greater than 1% by weight, at ordinary room temperature (25°C) and atmospheric pressure (760 mmHg).

[0563] Preferably, the silicate is selected from alkali metal silicates, alkaline earth metal silicates, aluminum silicates, trimethylammonium silicate and mixtures thereof.

[0564] More preferably, the silicate is selected from the group consisting of sodium silicate, potassium silicate, calcium silicate, aluminum silicate, trimethylammonium silicate, and mixtures thereof.

[0565] Even more preferably, the silicate is selected from sodium silicate.

[0566] Preferably, the silicate is chosen from compounds having the INCI name sodium silicate (CAS: [1344-09-8]) and / or sodium metasilicate (CAS: [6834-92-0]).

[0567] The silicate is preferably present in composition (B) in a total content ranging from 1% to 40% by weight, more preferably ranging from 2% to 35% by weight, even more preferably ranging from 3% to 35% by weight, most preferably ranging from 4% to 20% by weight relative to the total weight of composition (B).

[0568] The weight ratio of the total amount of carbonates and / or carbonate generating systems / the total amount of silicates in composition (B) is preferably from 0.00025 to 20, more preferably from 0.028 to 10, even more preferably from 0.028 to 3.4.

[0569] According to a preferred embodiment, the weight ratio of the total amount of carbonates / the total amount of silicates in composition (B) is 0.00025 to 20, preferably 0.028 to 10, more preferably 0.028 to 3.4.

[0570] The weight ratio of total amount of carbonates and / or carbonate generating systems / total amount of chemical oxidants in composition (B) is preferably from 0.0008 to 20, more preferably from 0.1 to 6.6, even more preferably from 0.1 to 2.9.

[0571] According to a preferred embodiment, the weight ratio of the total amount of carbonates / the total amount of chemical oxidants in composition (B) is 0.0008 to 20, preferably 0.1 to 6.6, more preferably 0.1 to 2.9.

[0572] According to a preferred embodiment, the weight ratio of the total amount of carbonates / the total amount of hydrogen peroxide in composition (B) is 0.0008 to 20, preferably 0.1 to 6.6, more preferably 0.1 to 2.9.

[0573] The weight ratio of the total amount of bicarbonate and / or bicarbonate generating system / the total amount of silicate in composition (B) is preferably 0.00025 to 20, more preferably 0.02 to 7.5, even more preferably 0.05 to 5.

[0574] According to a preferred embodiment, the weight ratio of the total amount of bicarbonate / the total amount of silicate in composition (B) is 0.00025 to 20, preferably 0.02 to 7.5, more preferably 0.05 to 5.

[0575] The weight ratio of total amount of bicarbonate and / or bicarbonate generating system / total amount of chemical oxidizing agent in composition (B) is preferably from 0.0008 to 20, more preferably from 0.11 to 5, even more preferably from 0.2 to 4.2.

[0576] According to a preferred embodiment, the weight ratio of the total amount of bicarbonate salts / the total amount of chemical oxidizing agents in composition (B) is 0.0008 to 20, preferably 0.11 to 5, more preferably 0.2 to 4.2.

[0577] According to a more preferred embodiment, the weight ratio of the total amount of bicarbonate / the total amount of hydrogen peroxide in composition (B) is from 0.0008 to 20, preferably from 0.11 to 5, more preferably from 0.2 to 4.2.

[0578] The weight ratio of the total amount of carbonates and / or carbonate generating systems / the total amount of bicarbonates and / or bicarbonate generating systems in composition (B) is preferably 0.0005 to 2000, more preferably 0.06 to 20, even more preferably 0.06 to 5.

[0579] According to a preferred embodiment, the weight ratio of the total amount of carbonates / the total amount of bicarbonates in composition (B) is 0.0005 to 2000, preferably 0.06 to 20, more preferably 0.06 to 5.

[0580] Composition (B) preferably comprises a total content of magnesium carbonate of less than 5% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight and better still less than 0.001% by weight.

[0581] According to a particularly preferred embodiment, the composition contains no magnesium carbonate.

[0582] Composition (B) preferably comprises a total content of persulfate of less than 10% by weight, more preferably less than 5% by weight, even more preferably less than 1% by weight, most preferably less than 0.1% by weight, and better still less than 0.01% by weight, and even better still less than 0.001% by weight.

[0583] According to a particularly preferred embodiment, the composition is free of persulfates.

[0584] According to a particular embodiment, composition (B) further comprises iv) one or more colorants, preferably selected from direct dyes, oxidative dyes and mixtures thereof.

[0585] According to this particular embodiment, the method according to the invention is a method for the simultaneous bleaching and dyeing of keratin fibers.

[0586] When they are present in composition (B), the colorants are preferably present in composition (B) in a total content ranging from 0.001% to 10% by weight, more preferably ranging from 0.01% to 4% by weight, even more preferably ranging from 0.1% to 1% by weight relative to the total weight of composition (B).

[0587] Oxidation dyes

[0588] Oxidation dyes are generally chosen from one or more oxidation bases, optionally in combination with one or more coupling agents (also called couplers).

[0589] Oxidation base

[0590] Composition (B) may optionally comprise one or more oxidation bases advantageously chosen from those conventionally used in dyeing keratin fibres.

[0591] By way of example, the oxidation base is selected from p-phenylenediamine, bis(phenyl)alkylenediamine, p-aminophenol, o-aminophenol and heterocyclic bases and the corresponding addition salts.

[0592] The p-phenylenediamines that may be mentioned include, for example, p-phenylenediamine, p-toluenediamine, 2-chloro-p-phenylenediamine, 2,3-dimethyl-p-phenylenediamine, 2,6-dimethyl-p-phenylenediamine, 2,6-diethyl-p-phenylenediamine, 2,5-dimethyl-p-phenylenediamine, N,N-dimethyl-p-phenylenediamine, N,N-diethyl-p-phenylenediamine, N,N-dipropyl-p-phenylenediamine, 4-amino-N,N-diethyl-3-methylaniline, N,N-bis(β-hydroxyethyl)-p-phenylenediamine, 4-N,N-bis(β-hydroxyethyl)amino-2-methylaniline, 4-N,N-bis(β-hydroxyethyl)amino-2-chloroaniline, 2-β-hydroxyethyl-p-phenylenediamine, 2-methoxymethyl-p-phenylenediamine, 2-fluoro-p-phenylenediamine, diamine, 2-isopropyl-p-phenylenediamine, N-(β-hydroxypropyl)-p-phenylenediamine, 2-hydroxymethyl-p-phenylenediamine, N,N-dimethyl-3-methyl-p-phenylenediamine, N-ethyl-N-(β-hydroxyethyl)-p-phenylenediamine, N-(β,γ-dihydroxypropyl)-p-phenylenediamine, N-(4'-aminophenyl)-p-phenylenediamine, N-phenyl-p-phenylenediamine, 2-β-hydroxyethyloxy-p-phenylenediamine, 2-β-acetylaminoethyloxy-p-phenylenediamine, N-(β-methoxyethyl)-p-phenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl-p-phenylenediamine, 2-β-hydroxyethylamino-5-aminotoluene and 3-hydroxy-1-(4'-aminophenyl)pyrrolidine and the corresponding addition salts with acids.

[0593] Among the above-mentioned p-phenylenediamines, p-phenylenediamine, p-toluenediamine, 2-isopropyl-p-phenylenediamine, 2-β-hydroxyethyl-p-phenylenediamine, 2-β-hydroxyethyloxy-p-phenylenediamine, 2,6-dimethyl-p-phenylenediamine, 2,6-diethyl-p-phenylenediamine, 2,3-dimethyl-p-phenylenediamine, N,N-bis(β-hydroxyethyl)-p-phenylenediamine, 2-chloro-p-phenylenediamine and 2-β-acetylaminoethyloxy-p-phenylenediamine and corresponding addition salts with acids are particularly preferred.

[0594] Bis(phenyl)alkylenediamines that may be mentioned include, for example, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4′-aminophenyl)-1,3-diaminopropanol, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4′-aminophenyl)ethylenediamine, N,N′-bis(4-aminophenyl)tetramethylenediamine, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4-aminophenyl)tetramethylenediamine, N,N′-bis(4-methylaminophenyl)tetramethylenediamine, N,N′-bis(ethyl)-N,N′-bis(4′-amino-3′-methylphenyl)ethylenediamine and 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane and the corresponding addition salts.

[0595] The p-aminophenols mentioned include, for example, p-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-(β-hydroxyethylaminomethyl)phenol and 4-amino-2-fluorophenol and the corresponding addition salts with acids.

[0596] O-aminophenols that may be mentioned include, for example, 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol and 5-acetamido-2-aminophenol and the corresponding addition salts.

[0597] Among the heterocyclic bases, mention may be made, for example, of pyridine, pyrimidine and pyrazole derivatives.

[0598] Pyridine derivatives that may be mentioned include, for example, the compounds described in patents GB 1 026 978 and GB 1 153 196, such as 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine and 3,4-diaminopyridine and the corresponding addition salts.

[0599] Other pyridine oxidation bases useful in the present invention are the 3-aminopyrazolo[1,5-a]pyridine oxidation bases or the corresponding addition salts described, for example, in patent application FR 2 801 308. Examples that may be mentioned include pyrazolo[1,5-a]pyridin-3-ylamine, 2-acetylaminopyrazolo[1,5-a]pyridin-3-ylamine, 2-(morpholin-4-yl)pyrazolo[1,5-a]pyridin-3-ylamine, 3-aminopyrazolo[1,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[1,5-a]pyridin-3-ylamine, (3-aminopyrazolo[1,5-a]pyridin-7-yl)methoxypyrazolo[1,5-a]pyridin-3-ylamine, 2-(morpholin-4-yl)pyrazolo[1,5-a]pyridin-3-ylamine, 3-aminopyrazolo[1,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[1,5-a]pyridin-3-ylamine, 3-aminopyrazolo[1,5-a]pyridin-7-yl)methoxypyrazolo[1,5-a]pyridin-3-ylamine, 3-aminopyrazolo[1,5-a]pyridin-2-carboxylic acid, 3-aminopyrazolo[1,5-a]pyridin-3-ylamine, 3-aminopyrazolo[1,5-a]pyridin-7-yl)methoxypyrazolo[1,5-a]pyridin-3-ylamine, 3-amino ... alcohol, 2-(3-aminopyrazolo[1,5-a]pyridin-5-yl)ethanol, 2-(3-aminopyrazolo[1,5-a]pyridin-7-yl)ethanol, (3-aminopyrazolo[1,5-a]pyridin-2-yl)methanol, 3,6-diaminopyrazolo[1,5-a]pyridine, 3,4-diaminopyrazolo[1,5-a]pyridine, pyrazolo[1,5-a]pyridine-3,7-diamine, 7-(morpholine-4- 2-[(3-aminopyrazolo[1,5-a]pyridin-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a]pyridin-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a]pyridin-3-ylamine, 3-(morpholin-4-yl)pyrazolo[1,5-a]pyridin-3-ylamine, 2-[(3-aminopyrazolo[1,5-a]pyridin-5-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a]pyridin-7-yl)(2-hydroxyethyl)amino]ethanol, 3-(morpholin-4-yl)pyrazolo[1,5-a]pyridin-3-ylamine, 2-[(3-aminopyrazolo[1,5-a]pyridin-5-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a]pyridin-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a]pyridin-3-ylamine ... oxazolo[1,5-a]pyridine-5-ol, 3-aminopyrazolo[1,5-a]pyridine-4-ol, 3-aminopyrazolo[1,5-a]pyridine-6-ol, 3-aminopyrazolo[1,5-a]pyridine-7-ol, 2-β-hydroxyethoxy-3-aminopyrazolo[1,5-a]pyridine and 2-(4-dimethylpiperazinium-1-yl)-3-aminopyrazolo[1,5-a]pyridine, and corresponding addition salts.

[0600] More particularly, the oxidation bases useful in the present invention are chosen from 3-aminopyrazolo[1,5-a]pyridine and are preferably substituted on carbon atom 2 by:

[0601] a) (di)(C1-C6)(alkyl)amino, the alkyl group may be substituted with at least one hydroxyl, amino or imidazolium group;

[0602] b) an optionally cationic 5- to 7-membered heterocycloalkyl group containing 1 to 3 heteroatoms, which is optionally substituted by one or more (C1-C6)alkyl groups, such as a di(C1-C4)alkylpiperazinium group; or

[0603] c) (C1-C6)alkoxy optionally substituted by one or more hydroxy groups, such as β-hydroxyalkoxy, and the corresponding addition salts.

[0604] Pyrimidine derivatives that may be mentioned include the compounds described, for example, in patents DE 2359399, JP 88-169571, JP 05-63124 and EP 0770375 or in patent application WO 96 / 15765, such as 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine and addition salts thereof and also tautomeric forms thereof (when tautomeric equilibrium exists).

[0605] Pyrazole derivatives that may be mentioned include those described in patents DE 3843892 and DE 4133957 and patent applications WO 94 / 08969, WO 94 / 08970, FR-A-2 733 749 and DE 195 43 Compounds in 988, such as 4,5-diamino-1-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)pyrazole, 3,4-diaminopyrazole, 4,5-diamino-1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3-dimethyl-5-hydrazinopyrazole, 1-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4,5-diamino-1-tert-butyl-3-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)-3-methylpyrazole, 4,5 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropylpyrazole, 4,5-diamino-3-methyl-1-isopropylpyrazole, 4-amino-5-(2'-aminoethyl)amino-1,3-dimethylpyrazole, 3,4,5-triaminopyrazole, 1-methyl-3,4,5-triaminopyrazole, 3,5-diamino-1-methyl-4-methylaminopyrazole, 3,5-diamino-4-(β-hydroxyethyl)amino-1-methylpyrazole and corresponding addition salts. 4,5-diamino-1-(β-methoxyethyl)pyrazole can also be used.

[0606] Preference will be given to using 4,5-diaminopyrazole and even more preferably 4,5-diamino-1-(β-hydroxyethyl)pyrazole and / or the corresponding salts.

[0607] Pyrazole derivatives that may also be mentioned include diamino-N,N-dihydropyrazolopyrazolones and in particular those described in patent application FR-A-2 886 136, such as the following compounds and the corresponding addition salts: 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-ethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-isopropylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-a]pyrazol-1-one, 2-amino-3-(pyrrolidin-1-yl)-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 4,5-diamino-1,2-dimethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-diethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-di(2-hydroxyethyl) -1,2-dihydropyrazol-3-one, 2-amino-3-(2-hydroxyethyl)amino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-dimethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2,3-diamino-5,6,7,8-tetrahydro-1H,6H-pyridazin-1-one -a]pyrazol-1-one, 4-amino-1,2-diethyl-5-(pyrrolidin-1-yl)-1,2-dihydropyrazol-3-one, 4-amino-5-(3-dimethylaminopyrrolidin-1-yl)-1,2-diethyl-1,2-dihydropyrazol-3-one, 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one.

[0608] Preference will be given to using 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and / or the corresponding salts.

[0609] As heterocyclic bases, preference is given to using 4,5-diamino-1-(β-hydroxyethyl)pyrazole and / or 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and / or the corresponding salts.

[0610] Color former

[0611] Composition (B) may optionally comprise one or more couplers, advantageously chosen from those conventionally used in dyeing keratin fibres.

[0612] Among these couplers, mention may in particular be made of meta-phenylenediamine, meta-aminophenol, resorcinol, naphthalene-based couplers and heterocyclic couplers, and also the corresponding addition salts.

[0613] Mention may be made, for example, of 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 2,4-diamino-1-(β-hydroxyethoxy)benzene, 2-amino-4-(β-hydroxyethylamino)-1-methoxybenzene, 1,3-diaminobenzene, 1,3-bis(2,4-diaminophenoxy)propane, 3-ureidoaniline, 3-ureido-1-dimethylaminobenzene, sesamol, 1-β-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol, 2-methyl-1-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine, 3,5-diamino-2,6-dimethoxy- pyridine, 1-N-(β-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-bis(β-hydroxyethylamino)toluene, 6-hydroxyindoline, 2,6-dihydroxy-4-methylpyridine, 1H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 2,6-dimethylpyrazolo[1,5-b][1,2,4]triazole, 2,6-dimethyl[3,2-c][1,2,4]triazole, 6-methylpyrazolo[1,5-a]benzimidazole, 2-methyl-5-aminophenol, 5-N-(β-hydroxyethyl)amino-2-methylphenol, 3-aminophenol and 3-amino-2-chloro-6-methylphenol, the corresponding addition salts with acids and the corresponding mixtures.

[0614] In general, the addition salts of oxidation bases and couplers which can be used in the context of the present invention are chosen especially from addition salts with acids such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, toluenesulfonates, benzenesulfonates, phosphates and acetates.

[0615] The oxidation bases each advantageously represent from 0.001% to 10% by weight relative to the total weight of composition (B), and preferably from 0.005% to 5% by weight relative to the total weight of composition (B).

[0616] The couplers, if they are present, each advantageously represent from 0.001% to 10% by weight relative to the total weight of composition (B), and preferably from 0.005% to 5% by weight relative to the total weight of composition (B).

[0617] Direct dyes

[0618] Composition (B) may also comprise one or more direct dyes.

[0619] Synthetic direct dyes which can be used are, for example, chosen from those conventionally used for direct dyeing, and among them there may be mentioned all customary aromatic and / or non-aromatic dyes, such as nitrobenzene, azo, hydrazono, nitro(hetero)aryl, tri(hetero)arylmethane, (poly)methine, carbonyl, azine, porphyrin, metalloporphyrin, quinone and in particular anthraquinone, indigoamine and phthalocyanine direct dyes, and mixtures thereof.

[0620] Among the nitrobenzene direct dyes, mention may be made of: 1,4-diamino-2-nitrobenzene, 1-amino-2-nitro-4-β-hydroxyethylaminobenzene, 1-amino-2-nitro-4-bis(β-hydroxyethyl)aminobenzene, 1,4-bis(β-hydroxyethylamino)-2-nitrobenzene, 1-β-hydroxyethylamino-2-nitro-4-bis(β-hydroxyethylamino)benzene, 1-β-hydroxyethylamino-2-nitro-4-aminobenzene, 1-β-hydroxyethylamino-2-nitro-4-(ethyl)(β-hydroxyethyl)aminobenzene. Aminobenzene, 1-amino-3-methyl-4-β-hydroxyethylamino-6-nitrobenzene, 1-amino-2-nitro-4-β-hydroxyethylamino-5-chlorobenzene, 1,2-diamino-4-nitrobenzene, 1-amino-2-β-hydroxyethylamino-5-nitrobenzene, 1,2-bis(β-hydroxyethylamino)-4-nitrobenzene, 1-amino-2-tris(hydroxymethyl)methylamino-5-nitrobenzene, 1-hydroxy-2-amino-5-nitrobenzene, 1-hydroxy-2-amino-4-nitrobenzene, 1-hydroxy-3-nitrobenzene 1-β-hydroxyethyloxy-2-β-hydroxyethylamino-5-nitrobenzene, 1-methoxy-2-β-hydroxyethylamino-5-nitrobenzene, 1-β-hydroxyethyloxy-3-methylamino-4-nitrobenzene, 1-β,γ-dihydroxypropyloxy-3-methylamino-4-nitrobenzene, 1-β-hydroxyethylamino-4-β,γ-dihydroxypropyloxy-2-nitrobenzene, 1-β,γ-dihydroxypropylamino-4-trifluoromethyl-2-nitrobenzene -nitrobenzene, 1-β-hydroxyethylamino-4-trifluoromethyl-2-nitrobenzene, 1-β-hydroxyethylamino-3-methyl-2-nitrobenzene, 1-β-aminoethylamino-5-methoxy-2-nitrobenzene, 1-hydroxy-2-chloro-6-ethylamino-4-nitrobenzene, 1-hydroxy-2-chloro-6-amino-4-nitrobenzene, 1-hydroxy-6-bis(β-hydroxyethyl)amino-3-nitrobenzene, 1-β-hydroxyethylamino-2-nitrobenzene, 1-hydroxy-4-β-hydroxyethylamino-3-nitrobenzene.

[0621] Among the azo direct dyes, mention may be made of: Basic Red 51, Basic Orange 31, Disperse Red 17, Acid Yellow 9, Acid Black 1, Basic Red 22, Basic Red 76, Basic Yellow 57, Acid Yellow 36, Acid Orange 7, Acid Red 33, Acid Red 35, Acid Yellow 23, Acid Orange 24, Disperse Black 9, Basic Brown 16, Basic Brown 17.

[0622] Among the hydrazine direct dyes, mention may be made of: Basic Yellow 87.

[0623] Among the nitroaryl direct dyes, mention may be made of: HC Blue 2, HC Yellow 2, HC Red 3, 4-hydroxypropylamino-3-nitrophenol, N,N′-bis(2-hydroxyethyl)-2-nitrophenylenediamine.

[0624] Among the triarylmethane direct dyes, mention may be made of: basic violet 1, basic violet 2, basic violet 3, basic violet 4, basic violet 14, basic blue 1, basic blue 7, basic blue 26, basic green 1, basic blue 77 (also known as HC blue 15), acid blue 1; acid blue 3; acid blue 7, acid blue 9; acid violet 49; acid green 3; acid green 5; acid green 50.

[0625] Among the quinone direct dyes, mention may be made of: Disperse Red 15, Solvent Violet 13, Acid Violet 43, Disperse Violet 1, Disperse Violet 4, Disperse Blue 1, Disperse Violet 8, Disperse Blue 3, Disperse Red 11, Acid Blue 62, Disperse Blue 7, Basic Blue 22, Disperse Violet 15, Basic Blue 99, and also the following compounds: 1-N-methylmorpholiniumpropylamino-4-hydroxyanthraquinone, 1-aminopropylamino-4-methylaminoanthraquinone, 1-Aminopropylaminoanthraquinone, 5-β-hydroxyethyl-1,4-diaminoanthraquinone, 2-aminoethylaminoanthraquinone, 1,4-bis(β,γ-dihydroxypropylamino)anthraquinone, Acid Blue 25, Acid Blue 43, Acid Blue 78, Acid Blue 129, Acid Blue 138, Acid Blue 140, Acid Blue 251, Acid Green 25, Acid Green 41, Acid Violet 42, Mordant Red 3, Acid Black 48, HC Blue 16.

[0626] Among the azine direct dyes, mention may be made of: Basic Blue 17, Basic Red 2.

[0627] Among the indigoamine direct dyes, mention may be made of: 2-β-hydroxyethylamino-5-[bis(β-4′-hydroxyethyl)amino]anilino-1,4-benzoquinone, 2-β-hydroxyethylamino-5-(2′-methoxy-4′-amino)anilino-1,4-benzoquinone, 3-N-(2′-chloro-4′-hydroxy)phenylacetamido-6-methoxy-1,4-benzoquinoneimine, 3-N-(3′-chloro-4′-methylamino)phenylureido-6-methyl-1,4-benzoquinoneimine, 3-[4′-N-(ethylcarbamoylmethyl)amino]phenylureido-6-methyl-1,4-benzoquinoneimine.

[0628] The natural direct dyes that can be used are selected from, for example, arthenone, juglone, indigo, indigo white, indirubin, isatin, henna acid, alizarin, safflower, morin, purpurin, carminic acid, carminic acid, lac acid, erythrogallol, protocatechualdehyde, curcumin, penicillin, apigenin, lichen red, carotenoids, betanin, chlorophyll, chlorophyllin, Monascus, polyphenols or o-diphenols.

[0629] Among the ortho-diphenols used according to the invention, mention may be made of: catechin, quercetin, brazilwood, oxidized hematoxylin, hematoxylin, chlorogenic acid, caffeic acid, gallic acid, L-DOPA, cyanidin, (-)-epicatechin, (-)-epigallocatechin, (-)-epigallocatechin-3-gallate (EGCG), isoquercetin, auranthus flavonoids, escin, 6,7-dihydroxy-3-(3-hydroxy-2,4-dimethoxyphenyl)coumarin, pterostilbene A and B, mangiferin, butein, coreopsistin, thiocyanin, robinin, betaine, 6,7-dihydroxy-3,4-dihydro-2H-isoquinolin-1-one (pericampylinone A), theaflavins, proanthocyanidin A2, proanthocyanidin B2, proanthocyanidin C1, proanthocyanidin DP 4-8, tannic acid, gallol, 5,6-dihydroxy-2-methyl-1,4-naphthoquinone, alizarin, wedelia lactone and natural extracts containing them.

[0630] The direct dyes may be present in composition (B) in a total content ranging from 0.001% to 5% by weight, preferably from 0.01% to 3% by weight, more preferably from 0.1% to 1% by weight, even more preferably from 0.1% to 0.8% by weight relative to the total weight of composition (B).

[0631] According to a preferred embodiment, composition (B) comprises a total content of colorants less than 0.1% by weight, preferably less than 0.01% by weight, more preferably less than 0.001% by weight, relative to the total weight of composition (B).

[0632] According to a more preferred embodiment, composition (B) contains no colorant.

[0633] pH of composition (B)

[0634] Composition (B) preferably has a pH of less than or equal to 11, preferably less than or equal to 10.5, preferably less than or equal to 10.

[0635] The pH of composition (B) may vary from 8 to 11, preferably from 8 to 10.5, more preferably from 8 to 10.

[0636] According to a particularly preferred embodiment, the pH of the composition (B) according to the invention varies from 8.3 to 10.

[0637] The composition (B) may further comprise one or more compounds D as defined above. The various features of the compound D described above also apply to the compound D that may be comprised in the composition (B).

[0638] Compound D is preferably present in composition (B) in a total content by weight ranging from 1% to 20% by weight, more preferably ranging from 2% to 15% by weight, even more preferably ranging from 2% to 12% by weight relative to the total weight of composition (B).

[0639] Composition (A), (B) and / or (C)

[0640] Alkalizing agent

[0641] Compositions (A) and / or (B) and / or (C) may further comprise one or more alkalizing agents other than the carbonates, bicarbonates and silicates as defined above.

[0642] The alkalizing agent may be inorganic or organic. They may be selected from i) aqueous ammonia, ii) alkanolamines such as monoethanolamine, diethanolamine, triethanolamine and their derivatives, iii) oxyethylated and / or oxypropylated ethylenediamine, iv) inorganic or organic hydroxides, v) amino acids, preferably basic amino acids such as arginine, lysine, ornithine, citrulline and histidine, and vi) compounds of the following formula (II):

[0643]

[0644] in:

[0645] -W is a divalent (C1-C8)alkylene group, preferably a propylene group, optionally substituted, in particular, by hydroxy or C1-C4 alkyl;

[0646] -R a , R b , R c and R d may be the same or different and represent a hydrogen atom or a C1-C4 alkyl group or a C1-C4 hydroxyalkyl group;

[0647] vii) and mixtures thereof.

[0648] The inorganic or organic hydroxide is preferably selected from i) alkali metal hydroxides, such as sodium hydroxide or potassium hydroxide, ii) alkaline earth metal hydroxides, iii) transition metal hydroxides, such as hydroxides of metals from groups III, IV, V and VI, iv) hydroxides of lanthanides or actinides.

[0649] When they are present, alkalizing agents other than carbonates, bicarbonates and silicates as defined above preferably represent from 0.001% to 20% and more particularly from 0.005% to 16% by weight relative to the total weight of composition (A) or (B) or (C).

[0650] According to a preferred embodiment, composition (A) and / or (B) and / or (C) does not contain an alkalizing agent selected from ammonia and / or alkanolamines.

[0651] Acidifier

[0652] Compositions (A) and / or (B) and / or (C) may further comprise one or more acidulants.

[0653] Among the acidifying agents, examples that may be mentioned include inorganic acids, such as hydrochloric acid, (ortho)phosphoric acid, boric acid, nitric acid or sulfuric acid, or organic acids, such as compounds comprising at least one carboxylic acid function (such as acetic acid, tartaric acid, citric acid or lactic acid), a sulfonic acid function, a phosphonic acid function or a phosphoric acid function.

[0654] Chelating agents

[0655] Compositions (A) and / or (B) and / or (C) may optionally contain one or more chelating agents. As examples of chelating agents that can be used in the present invention, N,N-bis(carboxymethyl)-L-glutamic acid and tetrasodium N,N-bis(carboxymethyl)-L-glutamate may be mentioned.

[0656] Other characteristics of compositions (A), (B) and / or (C)

[0657] Compositions (A) and / or (B) and / or (C) preferably comprise water in a content ranging from 5% to 99% by weight, more preferably ranging from 5% to 80% by weight, relative to the total weight of the composition.

[0658] Composition (A) and / or (B) and / or (C) may further comprise at least one organic solvent.

[0659] The term "organic solvent" means an organic substance that is capable of dissolving another substance without chemically modifying it.

[0660] As organic solvents, mention may be made, for example, of lower C2-C4-alkanols, such as ethanol and isopropanol, polyols and polyol ethers, such as 2-butoxyethanol, propylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether or diethylene glycol monomethyl ether, and also aromatic alcohols, such as benzyl alcohol or phenoxyethanol, and mixtures thereof.

[0661] The organic solvent is present in a proportion preferably ranging from 0.1% to 40% by weight, more preferably from 1% to 30% by weight, even more preferably from 1% to 25% by weight, relative to the total weight of composition (A) and / or (B) and / or (C).

[0662] Compositions (A) and / or (B) and / or (C) may be provided in liquid form, in the form of a slurry, in a thickened form (in particular a gel, cream, wax or paste), or in the form of a foam.

[0663] Compositions (A) and / or (B) and / or (C) may further comprise one or more additional compounds chosen from nonionic, anionic, cationic or amphoteric surfactants, cationic, anionic, nonionic or zwitterionic, associative or non-associative thickening polymers of natural or synthetic origin, silicone or non-silicone vegetable, mineral or synthetic oils in the form of oils, gums or resins, UV-screening agents, fillers such as pearlescent agents and metal oxides such as titanium dioxide, clays, fragrances, peptizers, vitamins and preservatives.

[0664] Additional features of the processing method

[0665] According to a preferred embodiment, the method according to the invention is a method for lightening keratin fibers.

[0666] Preferably, the keratin fibres treated according to the method of the invention are dark keratin fibres.

[0667] The term "dark keratin fibers" is intended to mean keratin fibers having a shade depth (TD) less than or equal to 6 (dark blond) and preferably less than or equal to 4 (chestnut brown).

[0668] The process according to the invention makes it possible to obtain a lightening of keratin fibres, characterized in that the value of b* is lower, preferably 10% lower, more preferably 15% lower than the value of b* measured at the same intensity level L* on keratin fibres lightened with a composition comprising one or more persulfates, the values ​​of b* and L* being measured in the CIE L*a*b* system.

[0669] Preferably, the values ​​of b* and L* are measured according to the color evaluation method described in the Examples.

[0670] Composition (A)

[0671] The composition (A) is applied to the dry or moistened keratin fibres, preferably to the dry keratin fibres.

[0672] The composition (A) is applied to the keratin fibres in an amount preferably ranging from 0.1 g to 20 g, more preferably ranging from 0.5 g to 10 g of composition (A) per gram of keratin fibres.

[0673] The composition (A) is left on the keratin fibres for a time preferably ranging from 30 seconds to 30 minutes. For example, the composition (A) is left on the keratin fibres for 5 minutes.

[0674] The application temperature of the composition (A) is conventionally room temperature (15 to 25°C) to 70°C.

[0675] According to a preferred embodiment, the composition (A) is applied at room temperature (15° C. to 25° C.).

[0676] The composition (A) may be left on the fibers under a closing system. Non-limiting examples of closing systems that may be mentioned are closing systems such as aluminum packaging or plastic films or hair caps with or without holes.

[0677] After application of composition (A), the keratin fibres are optionally rinsed with water, or optionally washed with a shampoo and then rinsed with water, before optionally drying or leaving to dry naturally.

[0678] The drying step can be done using absorbent paper, a hair dryer or a styling hood.

[0679] Preferably, after application of composition (A), the keratin fibres are neither rinsed with water nor washed with shampoo.

[0680] Preferably, after application of composition (A), the keratin fibres are dried or left to dry naturally.

[0681] During implementation of the method according to the invention, the application of composition (A) may be repeated several times.

[0682] Composition (B)

[0683] The composition (B) is applied to the keratin fibres in an amount preferably ranging from 0.1 g to 20 g of composition per gram of keratin fibres.

[0684] The composition (B) is left on the keratin fibres for a time preferably ranging from 1 minute to 1 hour, more preferably ranging from 5 minutes to 60 minutes. For example, the composition (B) is left on the keratin fibres for 50 minutes.

[0685] The application temperature of the composition (B) is conventionally room temperature (15 to 25°C) to 80°C, preferably room temperature to 60°C.

[0686] According to a preferred embodiment, composition (B) is applied at 27°C.

[0687] The composition (B) may be left on the fibers under a closing system. Non-limiting examples of closing systems that may be mentioned are closing systems such as aluminum packaging or plastic films or hair caps with or without holes.

[0688] After application of composition (B), the keratin fibres are optionally rinsed with water, or optionally washed with a shampoo and then rinsed with water, before optionally drying or leaving to dry naturally.

[0689] The drying step can be done using absorbent paper, a hair dryer or a styling hood.

[0690] The composition (B) used in the process according to the invention is preferably prepared by mixing at least two compositions. Preferably, the mixing of the at least two compositions is carried out extemporaneously before applying the compositions to the keratin fibres.

[0691] According to a preferred embodiment, the composition (B) is produced by mixing:

[0692] ■ A composition (B1) comprising:

[0693] - one or more chemical oxidizing agents as defined above, selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts and mixtures thereof, preferably hydrogen peroxide; and

[0694] ■ A composition (B2) comprising:

[0695] - one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof as defined above, preferably selected from carbonates, bicarbonates and mixtures thereof as defined above; and

[0696] - one or more silicates as defined above; and

[0697] - optionally one or more colorants, preferably selected from direct dyes, oxidation dyes and mixtures thereof; and

[0698] ■Optionally a composition (B3) comprising:

[0699] - One or more colorants, preferably selected from direct dyes, oxidation dyes and mixtures thereof.

[0700] According to a preferred embodiment, the method according to the invention is a method for lightening keratin fibers, wherein composition (B) results from the mixing of:

[0701] ■ A composition (B1) comprising:

[0702] - one or more chemical oxidizing agents as defined above, selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts and mixtures thereof, preferably hydrogen peroxide; and

[0703] ■ A composition (B2) comprising:

[0704] - one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof as defined above, preferably selected from carbonates, bicarbonates and mixtures thereof as defined above; and

[0705] - One or more silicates as defined above.

[0706] According to another preferred embodiment, the process according to the invention is a process for the simultaneous bleaching and dyeing of keratin fibers, wherein composition (B) results from the mixture of:

[0707] ■ A composition (B1) comprising:

[0708] - one or more chemical oxidizing agents as defined above, selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts and mixtures thereof, preferably hydrogen peroxide; and

[0709] ■ A composition (B2) comprising:

[0710] - one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof as defined above, preferably selected from carbonates, bicarbonates and mixtures thereof as defined above; and

[0711] - one or more silicates as defined above; and

[0712] - One or more colorants, preferably selected from direct dyes, oxidation dyes and mixtures thereof.

[0713] According to another preferred embodiment, the process according to the invention is a process for the simultaneous bleaching and dyeing of keratin fibers, wherein composition (B) results from the mixture of:

[0714] ■ A composition (B1) comprising:

[0715] - one or more chemical oxidizing agents as defined above, selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts and mixtures thereof, preferably hydrogen peroxide; and

[0716] ■ A composition (B2) comprising:

[0717] - one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof as defined above, preferably selected from carbonates, bicarbonates and mixtures thereof as defined above; and

[0718] - one or more silicates as defined above; and

[0719] ■ A composition (B3) comprising one or more colorants, preferably chosen from direct dyes, oxidation dyes and mixtures thereof.

[0720] Preferably, at least one of the compositions (B1) or (B2) or at least one of the three compositions (B1) or (B2) or (B3) is aqueous. More preferably, composition (B1) is aqueous.

[0721] According to a specific embodiment, the composition (B2) is anhydrous.

[0722] According to a specific embodiment, composition (B1 ) is aqueous, composition (B2) is anhydrous and composition (B3) (when present) is aqueous.

[0723] "Aqueous composition" is understood to mean a composition comprising at least 2% by weight of water, preferably at least 5% by weight of water, more preferably at least 10% by weight of water and even more advantageously more than 20% by weight of water.

[0724] "Anhydrous composition" is understood to mean a composition containing less than 2% by weight of water, preferably less than 0.5% by weight of water, more preferably no water. Where appropriate, such small amounts of water may be introduced in particular via the ingredients of the composition which may contain residual amounts thereof.

[0725] Composition (C)

[0726] The composition (C) is applied to the dry or wet keratin fibres, preferably to the wet keratin fibres.

[0727] The composition (C) is applied to the keratin fibres in an amount preferably ranging from 0.01 g to 5 g, more preferably ranging from 0.05 g to 5 g of composition (C) per gram of keratin fibres.

[0728] The composition (C) is left on the keratin fibres for a time preferably ranging from 30 seconds to 30 minutes, more preferably ranging from 2 minutes to 10 minutes.

[0729] The application temperature of the composition (C) is conventionally room temperature (15 to 25°C) to 70°C.

[0730] According to a preferred embodiment, the composition (C) is applied at room temperature (15°C to 25°C).

[0731] The composition (C) may be left on the fibers under a closing system. Non-limiting examples of closing systems that may be mentioned are closing systems such as aluminum packaging or plastic films or hair caps with or without holes.

[0732] According to a preferred embodiment, the composition (C) is in the form of a shampoo. After applying the composition (C), the keratin fibers are preferably rinsed with water and optionally treated with a conditioner, lotion or mask type composition before optionally drying or leaving to dry naturally.

[0733] According to another preferred embodiment, composition (C) is in the form of a hair conditioner composition, for example, a conditioner, a lotion or a hair mask. According to this further embodiment, the method comprises a step of washing the keratin fibers with a shampoo, followed by rinsing with water, between the step of applying composition (B) and the step of applying composition (C). According to this further embodiment, after applying composition (C), the keratin fibers are preferably rinsed with water before optionally drying or leaving to dry naturally.

[0734] During the implementation of the method according to the invention, the application of composition (C) can be repeated several times. For example, the application of composition (C) can be repeated 1 to 5 times.

[0735] Composition (B)

[0736] According to a second aspect, a subject of the invention is a composition (B) as defined previously, comprising one or more compounds D as defined previously.

[0737] use

[0738] According to a third aspect, a subject of the invention is the use of a composition (A) and / or (C) as previously defined for reducing damage to keratin fibres treated by a method for treating keratin fibres with a composition (B) as previously defined.

[0739] According to a preferred embodiment, a subject of the invention is the use of compositions (A) and / or (C) as defined above for protecting and / or repairing keratin fibers treated by a method for treating keratin fibers with composition (B) as defined above.

[0740] According to a more preferred embodiment, a subject of the invention is the use of a composition (A) and / or (C) as defined above for reducing the breakage of keratin fibers treated by a method for treating keratin fibers with a composition (B) as defined above.

[0741] Multi-compartment device (test kit)

[0742] According to a fourth aspect, the subject of the invention is a multi-compartment device comprising:

[0743] ■ A second compartment containing a composition (B1) comprising:

[0744] - one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts, and mixtures thereof;

[0745] ■ A second compartment containing a composition (B2) comprising:

[0746] - one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof; and

[0747] - one or more silicates; and

[0748] - optionally one or more colorants, preferably selected from direct dyes, oxidation dyes and mixtures thereof; and

[0749] ■ a third compartment containing a composition (A) or (C) as defined above, which composition (A) or (C) may optionally comprise one or more colorants, preferably chosen from direct dyes, oxidative dyes and mixtures thereof; and

[0750] ■ a fourth compartment optionally containing a composition (B3) comprising one or more colorants, preferably chosen from direct dyes, oxidative dyes and mixtures thereof;

[0751] It will be appreciated that at least one of compositions (B1 ), (B2), (B3), (A) or (C) comprises one or more compounds D as defined previously.

[0752] According to a specific embodiment, the multi-compartment device (kit) comprises:

[0753] ■ A second compartment containing a composition (B1) comprising:

[0754] - one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts, and mixtures thereof;

[0755] ■ A second compartment containing a composition (B2) comprising:

[0756] - one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof; and

[0757] - one or more silicates; and

[0758] - optionally one or more colorants, preferably selected from direct dyes, oxidation dyes and mixtures thereof; and

[0759] ■ a third compartment containing a composition (A) as defined above, which composition (A) may optionally comprise one or more colorants, preferably chosen from direct dyes, oxidative dyes and mixtures thereof; and

[0760] ■ a fourth compartment containing a composition (C) as defined above, which composition (C) may optionally comprise one or more colorants, preferably chosen from direct dyes, oxidative dyes and mixtures thereof;

[0761] ■ a fifth compartment optionally containing a composition (B3) comprising one or more colorants, preferably chosen from direct dyes, oxidative dyes and mixtures thereof;

[0762] It will be appreciated that at least one of compositions (B1 ), (B2), (B3), (A) or (C) comprises one or more compounds D as defined previously.

[0763] Examples

[0764] The following examples allow the invention to be more clearly understood, however, are not limiting in nature.In the following examples, unless otherwise indicated, all amounts are shown as weight percentages relative to the total weight of the composition.

[0765] Examples 1 to 3: Method for treating keratin fibers with a pre-treatment step

[0766] The following pretreatment compositions A1 and A2 and also a bleaching composition B were prepared: x and B y , and then administered according to the administration schedule described below and evaluated according to the evaluation schedule described below:

[0767] Pretreatment composition

[0768] [Table 1]

[0769]

[0770] Bleaching composition

[0771] [Table 2]

[0772]

[0773] Administration regimen

[0774] Step a): Pretreatment

[0775] Compositions A1 and A2 are applied to 3 locks of type IV and HT4 Brazilian hair in the bath ratios (g composition / g hair) indicated in the table below. The hair is massaged with the fingers, making circular movements (5 times) along the entire length of the locks, and then the locks are left for 5 minutes. The locks are wrung out of water and then dried with a hair dryer.

[0776] Step b): Bleaching

[0777] Then the bleaching composition B x or B y The bath ratio indicated in the table below (g composition / g hair) is applied to 3 tresses of hair treated during step a). The tresses are then placed on a hot plate at 27° C. (a temperature representative of the temperature of the hair on the head) for 25 minutes, then turned over and placed on the hot plate for another 25 minutes. The tresses are then rinsed with tap water for 30 seconds, the water is wrung out, shampooed with DOP shampoo and then dried at 60° C.

[0778] These tresses were then evaluated for color and completeness according to the evaluation protocol described below.

[0779] Bath ratio

[0780] [Table 3]

[0781]

[0782] Color Evaluation Methods

[0783] The color of the streaks was evaluated in the CIE L*a*b* system using a Minolta spectrophotometer CM3610A colorimeter (illuminant D65).

[0784] In this L*a*b* system, L* represents the intensity of the color, a* indicates the chromaticity of the color on the green / red axis, and b* indicates the chromaticity of the color on the blue / yellow axis. The higher the value of L*, the lighter the color. The higher the value of a*, the redder the color, and the higher the value of b*, the yellower the color.

[0785] Methods used to assess hair integrity

[0786] The test involves pulling wet hair to see if the hair breaks, deforms irreversibly, or deforms and then returns to its original shape and length. Hairstylists often use this test to assess the integrity of their clients' hair. The test involves taking 6 hair fibers, soaking them in water for 30 seconds, then grasping them in both hands, spreading the fingers and thumb of each hand so that there are 3 centimeters of fiber between the hands, and then pulling so that the fiber deforms another 1 cm. The fiber is held for 3 seconds, and then the tension is gently released. The fiber is laid horizontally on a white paper for 5 minutes to dry, and then evaluated.

[0787] In the laboratory, a ruler was used to ensure that the distance was adhered to. The test was repeated 5 times, ie a total of 30 fibers.

[0788] Hair integrity properties are classified using the following rules:

[0789] If the sum of broken and irreversibly deformed fibers is equal to or greater than 10, the hair has very poor integrity.

[0790] If the sum of broken and irreversibly deformed fibers is from 6 to 9 (inclusive), the hair has poor integrity.

[0791] If the sum of broken and irreversibly deformed fibers is between 2 and 5, inclusive, the hair has good integrity.

[0792] If the sum of broken and irreversibly deformed fibers is 1 or less, the hair has very good integrity.

[0793] Colorimetric measurement

[0794] The colorimetric measurement results are summarized in the following table:

[0795] [Table 4]

[0796] Examples L* a* b* 1 40.6 9.5 22.8 2 41.1 8.3 21.7 3 40.8 9.0 21.7

[0797] The method according to the invention makes it possible to obtain colour chromaticities characterized by relatively low b* values ​​and therefore less yellow and more natural results.

[0798] Measurement of hair integrity

[0799] The results of the integrity measurements are summarized in the following table:

[0800] [Table 5]

[0801]

[0802] The method according to the invention respects the integrity of the fibres and makes it possible to protect the hair, in particular from breakage or deformation.

[0803] Examples 4 to 7: Method for treating keratin fibers with a post-treatment step

[0804] The following post-treatment compositions C1 to C4 and also the bleaching compositions B described in Examples 1 to 3 were prepared: x and B y , and then applied according to the administration scheme described below and evaluated according to the evaluation scheme described in Examples 1 to 3:

[0805] Post-treatment composition

[0806] [Table 6]

[0807]

[0808] [Table 7]

[0809]

[0810]

[0811] Administration regimen

[0812] Step b): Bleaching

[0813] The bleaching composition B x or B y The bath ratio indicated in the table below (g composition / g hair) was applied to 4 tresses of HT3 natural brown Japanese hair. The tresses were then placed on a hot plate at 27° C. (a temperature representative of the temperature of the hair on the head) for 25 minutes, then turned over and placed on the hot plate for another 25 minutes.

[0814] The tresses were rinsed with tap water for 30 seconds, the water was wrung out, shampooed with DOP shampoo and then wrung dry with a towel.

[0815] Step c): Post-processing

[0816] Compositions C1 to C4 are then applied to the 4 tresses treated during step b) at the bath ratios indicated in the table below (g composition / g hair). The hair is massaged with the fingers, making circular movements (5 times) along the entire length of the tresses, and the tresses are then left for 5 minutes. The tresses are then rinsed with tap water for 30 seconds, the water is wrung out, and then dried at 60°C.

[0817] The administration of compositions C3 and C4 was repeated 4 more times in order to achieve a total of 5 administrations of compositions C3 and C4.

[0818] Bath ratio

[0819] [Table 8]

[0820]

[0821]

[0822] Colorimetric measurement

[0823] The colorimetric measurement results are summarized in the following table:

[0824] [Table 9]

[0825] Examples L* a* b* 4 43.8 10.0 24.3 5 43.0 9.6 24.9 6 42.5 10.3 24.0 7 39.1 8.9 21.6

[0826] The method according to the invention makes it possible to obtain colour chromaticities characterized by relatively low b* values ​​and therefore less yellow and more natural results.

[0827] Measurement of hair integrity

[0828] The results of the integrity measurements are summarized in the following table:

[0829] [Table 10]

[0830]

[0831] The method according to the invention respects the integrity of the fibres and makes it possible to protect the hair, in particular from breakage or deformation.

[0832] Example 8: Method for treating keratin fibers with a pre-treatment step and a post-treatment step

[0833] Preparation of pretreatment composition A1 described in Examples 1 to 3, bleaching composition B described in Examples 1 to 3 y and also the following post-treatment composition C5, which was then applied according to the application protocol described below and evaluated with respect to the integrity of the hair according to the evaluation protocol described in Examples 1 to 3:

[0834] Post-treatment composition

[0835] [Table 11]

[0836]

[0837] Step a): Pretreatment

[0838] Composition A1 is applied to 1 lock of type IV and HT4 Brazilian hair at a bath ratio (g composition / g hair) equal to 1. The hair is massaged with the fingers, making circular movements (5 times) along the entire length of the lock, and the lock is then left for 5 minutes. The lock is then wrung out of water and then dried with a hair dryer.

[0839] Step b): Bleaching

[0840] Then the bleaching composition B y Apply to the tress treated during step a) at a bath ratio (g composition / g hair) equal to 10. The tress is then placed on a hot plate at 27° C. (a temperature representative of the temperature of the hair on the head) for 25 minutes, then turned over and placed on the hot plate for another 25 minutes. The tress is then rinsed with tap water for 30 seconds, the water is wrung out, shampooed with DOP shampoo and the water is then wrung out.

[0841] Step c): Post-processing

[0842] Composition C5 is then applied to the tress treated during step b) at a bath ratio equal to 0.4 (g composition / g hair). The hair is massaged with the fingers, making circular movements along the entire length of the tress (5 times), and the tress is then left for 5 minutes. The tress is then rinsed with tap water for 30 seconds, the water is wrung out and then dried at 60°C.

[0843] Measurement of hair integrity

[0844] The results of the integrity measurements are summarized in the following table:

[0845] [Table 12]

[0846]

[0847] The method according to the invention respects the integrity of the fibres and makes it possible to protect the hair, in particular from breakage or deformation.

[0848] Examples 9 to 11: Method for treating keratin fibers without a pre-treatment step and without a post-treatment step

[0849] Prepare the following bleaching composition B z and B t .

[0850] The bleaching composition B was applied according to the application schedule described below z , B t and the bleaching composition B described in Examples 1 to 3 y The bleaching composition B was evaluated in terms of hair color and integrity according to the evaluation protocol described in Examples 1 to 3. z and B t The bleaching composition B was evaluated in terms of hair integrity according to the evaluation protocol described in Examples 1 to 3. y .

[0851] [Table 13]

[0852]

[0853]

[0854] Step b): Bleaching

[0855] The bleaching composition B y , B z and B t Apply to 1 lock of type IV and HT4 Brazilian hair at a bath ratio (g composition / g hair) equal to 10. The lock is then placed on a hot plate at 27°C (a temperature representative of the temperature of the hair on the head) for 25 minutes, then turned over and placed on the hot plate for another 25 minutes. The lock is then rinsed with tap water for 30 seconds, the water is wrung out, shampooed with DOP shampoo, the water is wrung out and then dried at 60°C.

[0856] Colorimetric measurement

[0857] The colorimetric measurement results are summarized in the following table:

[0858] [Table 14]

[0859] Examples Bleaching composition L* a* b* 9 <![CDATA[B z ]]> 43.55 9.56 22.95 10 <![CDATA[B t ]]> 44.84 9.51 22.39

[0860] The method according to the invention makes it possible to obtain colour chromaticities characterized by relatively low b* values ​​and therefore less yellow and more natural results.

[0861] Measurement of hair integrity

[0862] The results of the integrity measurements are summarized in the following table:

[0863] [Table 15]

[0864]

[0865] The method according to the invention respects the integrity of the fibres and makes it possible to protect the hair, in particular from breakage or deformation.

Claims

1. A method for treating keratin fibers, the method comprising: a) applying to the keratin fibers one or more compounds D selected from compounds of formula (I), solvates thereof, and mixtures thereof: In formula (I): ■R 1 , R 2 and R 3 may be the same or different and represent (hydroxy)(C1-C4)alkyl; ■R 4 represents a hydrogen atom, a (C1-C4)alkyl group or a group -C(O)R, wherein R is a (C1-C3)alkyl group; ■R 5 represents a hydrogen atom, a (C1-C4) alkyl group, an alkali metal or an alkaline earth metal; ■An - represents an organic anion; ■ x is a stoichiometric coefficient selected to ensure the electroneutrality of the compound of formula (I); b) applying to the keratin fibers a composition (B) comprising: i) one or more chemical oxidants selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts, and mixtures thereof; ii) one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof, preferably selected from carbonates, bicarbonates and mixtures thereof; iii) one or more silicates; Wherein the compound D: - in the composition (B); and / or - in a separate composition (A), which is applied to the keratin fibers before composition (B); and / or - in a separate composition (C), which is applied to the keratin fibers after composition (B); It should be understood that compositions (A) and (C) may be the same or different.

2. The method according to the preceding claim, wherein: - said compound D is present in composition (A) in a total content by weight ranging from 1% to 25% by weight, preferably ranging from 5% to 20% by weight, relative to the total weight of composition (A); and / or - said compound D is present in composition (B) in a total content by weight ranging from 1% to 20% by weight, preferably ranging from 2% to 15% by weight, more preferably ranging from 2% to 12% by weight, relative to the total weight of composition (B); and / or - said compounds D are present in composition (C) in a total content by weight ranging from 1% to 25% by weight, preferably ranging from 2% to 20% by weight, more preferably ranging from 2% to 15% by weight, relative to the total weight of composition (C).

3. A method according to any one of the preceding claims, wherein: An - represents an organic anion selected from the group consisting of: □ Type - Compounds of OC(O)-ALK-C(O)-OM(IIa), in: -ALK represents (C1-C6)alkylene, preferably (C2-C4)alkylene, optionally substituted by one or more hydroxyl groups (-OH); -M represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge or a hydrogen atom; the compound of formula (IIa) is preferably selected from the following compounds of formula (IIa1), (IIa2), (IIa3), (IIa4), (IIa5) or (IIa6): More preferably, the compound is selected from formula (IIa1) or (IIa4); □ A compound of the following formula (IIb), (IIIb) or (IVb): in: -R 6 To R 10 Independently of each other: ● Hydrogen atoms; ● (C1-C6) alkyl or (C1-C6) alkoxy, the (C1-C6) alkyl or (C1-C6) alkoxy is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2; R represents a hydrogen atom or a (C1-C4) alkyl, R' and R" independently represent a hydrogen atom, a (C1-C4) alkyl or a (C1-C4) alkylcarbonyl such as an acetyl group, it being understood that the group -NR'R" is not a -NH2 group; ●Halogen atoms; ● a group -OX, in which X represents a hydrogen atom or a protecting group for the phenol function, such as an acyl group, in particular an acetyl group; It should be understood that two adjacent groups R 6 To R 10 They can also form, together with the carbon atoms that carry them, a saturated or unsaturated or aromatic 5- or 6-membered (hetero) ring; -R a , R b , R c , R d , R e and R f Independently of each other: ● Hydrogen atoms; ● (C1-C6) alkyl, which is optionally substituted by one or more identical or different groups selected from the group consisting of: -OR, -NR'R", -C(O)OR, -OC(O)-R, (hetero)cycle, -C(O)-R, -NH-C(O)-R, -C(O)-NH-R, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group; ● (C1-C6) alkoxy, which is optionally substituted by one or more identical or different groups selected from the following: -OR, -NR'R", -C(O)OR, -OC(O)-R, aryl and -CF3 and / or is optionally interrupted by one or more groups or heteroatoms selected from the following: O, NR', CO, S, SO and SO2, wherein R, R' and R" are as previously defined, it being understood that the group -NR'R" is not a -NH2 group; ●Halogen atoms; ● a group -OX, wherein X is as previously defined; It should be understood that: ■(R a and R b ) and / or (R c and R d ) can form a C=O bond together with the carbon atom that carries them; ■R a and R b may, together with the carbon atoms that carry them, form a saturated or unsaturated 4- to 8-membered, in particular 4- to 6-membered, and more particularly 5- or 6-membered carbocyclic ring; ■R a or R b or R c or R d Can be used with R 6 or R 10 Together with the carbon atom carrying them, they form a 4- to 8-membered (hetero)cyclic ring, more particularly a 5- to 6-membered carbocyclic ring; - represents a single bond or an olefinic double bond, it should be understood that when When it represents an olefinic double bond, R b and R c does not exist; -p is an integer equal to 0 or 1; -r is an integer equal to 0 or 1; -R 11 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge; the compound of formula (IIb), (IIIb) or (IVb) is preferably selected from the compounds of the following formula (IIb1), (IIIb1) or (IVb1), respectively: in: -R 6 To R 10 is as defined previously; -R a and R b is as defined previously; -R 11 is as defined previously; the compound of formula (IIb), (IIIb) or (Ivb) is more preferably selected from the following compounds of formula (IIb2), (IIIb2) or (IVb2), respectively: in: -R 6 To R 10 is as defined previously; -R b is as defined previously; -R 11 is as defined previously; □Compound of the following formula (IIc): in: -X 1 , X 2 , X 3 and X 4 Independently of each other, represents a nitrogen atom or CR 7 It should be understood that X 1 , X 2 , X 3 and X 4 At least two of them represent CR 7 ; -R 6 and the substituent R 7 independently represent a hydrogen atom or a group selected from the following: ● A group of the following formula (a) or (b) or (c): In formula (b), R 8 represents a hydrogen atom, a negative charge, an alkali metal or an alkaline earth metal, preferably a negative charge; ●Hydroxyl group; ●thiol group or SR'; ●(Hydroxy)(C1-C4)alkoxy; ● Group -CO2R'; ● Group -OCOR'; ● (C1-C4) alkyl, which may be substituted by one or more identical or different groups selected from -CO2R', -OR', -OH, -SH, -SR', -NR a R b 、-CO-NR' a R' b and / or optionally interrupted by one or more non-adjacent oxygen atoms; ●Halogen atoms; -CF3 group; ●R'-CO-NR' group a -; ●Group -NR a R b ; ●Group R' a R' b N-CO-; ●Cyanide; in: □R' represents (C1-C4) alkyl; and □R a and R b Each independently represents a hydrogen atom or a (C1-C4) alkyl group. It should be understood that R a and R b At least one of is not H; and □R' a and R' b independently of one another represent a hydrogen atom or a (hydroxy)(C1-C4)alkyl group, preferably a hydrogen atom or a (C1-C4)alkyl group; It should be understood that: -R a and R b Together with the carbon atom that carries them, they can form a 5- or 6-membered heterocyclic ring; -When X 2 and X 3 Each represents a group CR 7 When the two substituents R 7 Together with the carbon atoms that carry them, they can form a 5- or 6-membered (hetero) ring; -R 6 and / or substituent R 7 At least one of them represents a group of formula (a) or (b) or (c), preferably a group of formula (a); □ and their mixtures.

4. The method according to claim 1 or 2, wherein: An - represents an organic anion selected from the compounds of the following formulae 1 to 46: More preferably, it is selected from the compounds of formula 4, 7, 10 or 36, and even more preferably, it is selected from the compounds of formula 4, 7 or 10.

5. A method according to any one of the preceding claims, wherein: ■R 1 , R 2 and R 3 represents a methyl group; ■R 4 and R 5 Represents a hydrogen atom.

6. The method according to any one of claims 1, 2 or 5, wherein: The compound of formula (I) is selected from the compounds of the following formulae 1' to 46': More preferably, it is selected from the compounds of formula 4', 7', 10' or 36', and even more preferably, it is selected from the compounds of formula 4', 7' or 10'.

7. A method according to any one of the preceding claims, wherein: The chemical oxidizing agent in composition (B) is hydrogen peroxide.

8. A method according to any one of the preceding claims, wherein: The chemical oxidizing agent is present in composition (B) in a total content ranging from 1% to 12% by weight, preferably ranging from 3% to 9% by weight, more preferably ranging from 3.5% to 8.5% by weight relative to the total weight of composition (B).

9. A method according to any one of the preceding claims, wherein: Said compounds ii) are present in composition (B) in a total content ranging from 0.01% to 20% by weight, preferably ranging from 1% to 15% by weight, more preferably ranging from 2% to 15% by weight, even more preferably ranging from 4% to 15% by weight relative to the total weight of composition (B).

10. A method according to any one of the preceding claims, wherein: The compound ii) is selected from carbonates, carbonate generating systems and mixtures thereof, preferably selected from carbonates.

11. A method according to any one of the preceding claims, wherein: The carbonate and / or the carbonate generating system is present in composition (B) in a total content ranging from 0.01% to 20% by weight, preferably ranging from 1% to 20% by weight, more preferably ranging from 1% to 10% by weight, relative to the total weight of composition (B).

12. A method according to any one of the preceding claims, wherein: The carbonate is selected from: - alkali metal carbonates; - Alkaline earth metal carbonates; - lanthanide carbonates; - transition metal carbonates; - bismuth carbonate; - cadmium carbonate; - thallium carbonate; - zinc carbonate; -Formula (N + R 1 R 2 R 3 R 4 )2CO3 2- A compound wherein R 1 , R 2 , R 3 and R 4 independently of one another represent a hydrogen atom or a (C1-C4)alkyl group which is optionally substituted by a hydroxyl group; -guanidine carbonate; - mixtures thereof; Preferably, the carbonate is selected from the group consisting of sodium carbonate, potassium carbonate, cesium carbonate, lithium carbonate, magnesium carbonate, calcium carbonate, barium carbonate, strontium carbonate, cerium carbonate, lanthanum carbonate, yttrium carbonate, copper (II) carbonate, manganese carbonate, nickel carbonate, silver carbonate, zirconium carbonate, bismuth carbonate, cadmium carbonate, thallium carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate, tetraethylammonium carbonate and mixtures thereof, more preferably selected from the group consisting of sodium carbonate, potassium carbonate, cesium carbonate, magnesium carbonate, calcium carbonate, cerium carbonate, manganese carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate and mixtures thereof, even more preferably selected from the group consisting of sodium carbonate, potassium carbonate, magnesium carbonate, calcium carbonate, ammonium carbonate and mixtures thereof; more preferably, the carbonate is ammonium carbonate.

13. A method according to any one of the preceding claims, wherein: The compound ii) is selected from bicarbonate, bicarbonate generating system and mixtures thereof, preferably selected from bicarbonate.

14. A method according to any one of the preceding claims, wherein: The bicarbonate salt and / or the bicarbonate generating system is present in composition (B) in a total content ranging from 0.01% to 20% by weight, preferably ranging from 1% to 15% by weight, more preferably ranging from 2% to 15% by weight, even more preferably ranging from 4% to 15% by weight, relative to the total weight of composition (B).

15. A method according to any one of the preceding claims, wherein: The bicarbonate is selected from: - alkali metal bicarbonates; - alkaline earth metal bicarbonates; -Formula N + R 1 R 2 R 3 R 4 ,·HCO3 - A compound wherein R 1 , R 2 , R 3 and R 4 independently of one another represent a hydrogen atom or a (C1-C4)alkyl group which is optionally substituted by a hydroxyl group; -aminoguanidine bicarbonate; - mixtures thereof; Preferably, it is selected from sodium bicarbonate, potassium bicarbonate, lithium bicarbonate, cesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate, choline bicarbonate, triethylammonium bicarbonate, aminoguanidine bicarbonate and mixtures thereof; more preferably, it is selected from sodium bicarbonate, potassium bicarbonate, cesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate and mixtures thereof, more preferably, it is selected from sodium bicarbonate, potassium bicarbonate, cesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate and mixtures thereof, even more preferably, it is selected from sodium bicarbonate, potassium bicarbonate, ammonium bicarbonate and mixtures thereof; most preferably, the bicarbonate is ammonium bicarbonate.

16. A method according to any one of the preceding claims, wherein: The silicate is chosen from alkali metal silicates, alkaline earth metal silicates, aluminum silicates, trimethylammonium silicate and mixtures thereof, preferably from sodium silicate, potassium silicate, calcium silicate, aluminum silicate, trimethylammonium silicate and mixtures thereof, more preferably from sodium silicate, even more preferably from compounds with the INCI names sodium silicate and / or sodium metasilicate.

17. A method according to any one of the preceding claims, wherein: The silicate is present in composition (B) in a total content ranging from 1% to 40% by weight, preferably ranging from 2% to 35% by weight, more preferably ranging from 3% to 35% by weight, even more preferably ranging from 4% to 20% by weight, relative to the total weight of composition (B).

18. A method according to any one of the preceding claims, wherein: The weight ratio of the total amount of bicarbonate and / or bicarbonate generating system / the total amount of silicate in composition (B) is 0.00025 to 20, preferably 0.02 to 7.5, more preferably 0.05 to 5.

19. A method according to any one of the preceding claims, wherein: The weight ratio of the total amount of bicarbonate and / or bicarbonate generating system / the total amount of chemical oxidizing agent in composition (B) is from 0.0008 to 20, preferably from 0.11 to 5, more preferably from 0.2 to 4.

2.

20. A method according to any one of the preceding claims, wherein: The weight ratio of the total amount of carbonates and / or carbonate generating systems / the total amount of bicarbonates and / or bicarbonate generating systems in composition (B) is 0.0005 to 2000, preferably 0.06 to 20, more preferably 0.06 to 5.

21. A method according to any one of the preceding claims, wherein: Composition (B) comprises a total content of magnesium carbonate of less than 5% by weight, preferably less than 1% by weight, more preferably less than 0.1% by weight, even more preferably less than 0.01% by weight, most preferably less than 0.001% by weight, and better still, composition (B) contains no magnesium carbonate.

22. A method according to any one of the preceding claims, wherein: Composition (B) comprises a total content of persulfate of less than 10% by weight, preferably less than 5% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight and better still less than 0.001% by weight, and even better still composition (B) is free of persulfate.

23. A method according to any one of the preceding claims, wherein: The pH of composition (B) varies from 8 to 11, preferably from 8 to 10.5, more preferably from 8 to 10, even more preferably from 8.3 to 10.

24. A method according to any one of the preceding claims, wherein: Composition (B) comprises one or more colorants, preferably selected from direct dyes, oxidation dyes and mixtures thereof.

25. The method according to any one of claims 1 to 23, wherein: Composition (B) comprises a total content of colorants of less than 0.1% by weight, preferably less than 0.01% by weight, more preferably less than 0.001% by weight relative to the total weight of composition (B), and even more preferably, composition (B) contains no colorants.

26. A method according to any one of the preceding claims, wherein: The composition (B) is obtained by mixing: ■ A composition (B1) comprising: - one or more chemical oxidizing agents as defined in claim 1 or 7, selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxide salts, and mixtures thereof; and ■ A composition (B2) comprising: - one or more compounds as defined in claim 1, 10, 12, 13 or 15, selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof; and - one or more silicates as defined in claim 1 or 16; and - optionally one or more colorants, preferably selected from direct dyes, oxidative dyes and mixtures thereof; and ■Optionally a composition (B3) comprising one or more colorants, preferably chosen from direct dyes, oxidative dyes and mixtures thereof.

27. A composition (B) as defined in any one of claims 1, 2 or 7 to 26, comprising one or more compounds D as defined in any one of claims 1 or 3 to 6.

28. Use of a composition (A) and / or (C) as defined in any one of claims 1 or 2 for reducing damage to keratin fibers treated by a method for treating keratin fibers using a composition (B) as defined in any one of claims 1, 2 or 7 to 27, preferably for protecting and / or repairing keratin fibers treated by a method for treating keratin fibers using a composition (B) as defined in any one of claims 1, 2 or 7 to 27, more preferably for reducing breakage of keratin fibers treated by a method for treating keratin fibers using a composition (B) as defined in any one of claims 1, 2 or 7 to 27.

29. A multi-compartment device comprising: ■ a first compartment containing a composition (B1) as defined in claim 26; and ■ a second compartment containing a composition (B2) as defined in claim 26; and ■ optionally a third compartment containing a composition (B3) as defined in claim 26; and ■ a fourth compartment optionally containing a composition (A) as defined in any one of claims 1 to 6; and ■ a fifth compartment optionally containing a composition (C) as defined in any one of claims 1 to 6; It is to be understood that at least one of the compositions (B1 ), (B2), (B3), (A) or (C) comprises one or more compounds D as defined in any one of claims 1 or 3 to 6.

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