FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION (See section 10, rule 13)
1. Title of the invention: COSMETIC COMPOSITION COMPRISING A PARTICULAR
SILICONE EMULSION, A PARTICULAR CATIONIC POLYMER, A PARTICULAR ANIONIC SURFACTANT AND AN AMPHOTERIC SURFACTANT
2. Applicant(s)
NAME NATIONALITY ADDRESS
L'OREAL French 14, Rue Royale 75008 PARIS, FRANCE
3. Preamble to the description
COMPLETE SPECIFICATION
The following specification particularly describes the invention and the manner in which it
is to be performed.

DESCRIPTION
The present invention relates to a composition useful for cleansing and/or conditioning keratin fibers, and in particular human keratin fibers such as the hair, which comprises a particular silicone emulsion, a particular cationic polymer, a particular anionic surfactant and an amphoteric surfactant.
The invention also relates to a cosmetic process for washing and/or conditioning keratin fibres using such a composition.
Finally, the invention relates to the use of such a composition for washing and/or conditioning keratin fibres, preferably the hair.
It is common practice to use detergent cosmetic compositions such as shampoos and shower gels, based essentially on surfactants, for washing keratin materials especially such as the hair and the skin. These compositions are applied to the keratin materials, which are preferably wet, and the lather generated by massaging or rubbing with the hands or a toiletry flannel makes it possible, after rinsing with water, to remove the diverse types of soiling initially present on the hair or the skin.
These compositions generally contain substantial contents of "detergent" surfactants, which, in order to be able to formulate cosmetic compositions with good washing power, must especially give them good foaming power.
The surfactants that are useful for this purpose are generally of anionic, nonionic and/or amphoteric type, and particularly of anionic type.
These compositions have generally a good washing power, but the intrinsic cosmetic properties associated with them nevertheless remain fairly poor, owing in particular to the fact that the relatively aggressive nature of such a cleaning treatment can, in the long run, lead to more or less pronounced damage to the hair fibre, this damage being associated in particular with the gradual removal of the lipids or proteins contained in or on the surface of this fibre.
Thus, in order to improve the cosmetic properties of the above detergent compositions, and more particularly those which are to be applied to sensitized hair (i.e. hair which has been damaged or made brittle, in particular under the chemical action of atmospheric agents and/or hair treatments such as permanent-waving, dyeing or bleaching), it is now common to introduce additional cosmetic agents known as conditioners into these compositions. These conditioners are intended mainly to repair or limit the harmful or undesirable effects induced by the various treatments or

aggressions to which the hair fibres are subjected more or less repeatedly. They may, of course, also improve the cosmetic behavior of natural hair.
The conditioners most commonly used to date in shampoos include cationic polymers, silicones and/or silicone derivatives, which give washed, dry or wet hair an ease-of disentangling, softness and smoothness which are markedly better than that which can be obtained with corresponding cleaning compositions from which they are absent.
In particular, it is known to use a mixture of silicone and cationic polymer. However, the compositions containing them still have numerous disadvantages, such as leading to an insufficient deposit of silicones on hair which significantly affects their cosmetic performance.
Thus, there is a real need to provide compositions, such as compositions for cleansing and/or conditioning keratin fibres, and in particular human keratin fibres, that make it possible to overcome the drawbacks described above, i.e. which effectively remove dirt and excess sebum and enhance cosmetic properties of said fibres, such as softness, smoothness, manageability and disentangling. These cosmetic properties may also be long-lasting.
In particular, the composition should give a satisfactory deposition of conditioning substances, such as silicones and/or cationic polymers, onto the keratin fibres, thus leading to an improved smooth coating on the fibres, and should improve hair disentangling.
These objectives are achieved with the present invention, a subject-matter of which is a cosmetic composition comprising:
a) an oil-in-water emulsion having D50 particle size of less than 350 nm and
comprising:
- a silicone mixture comprising (i) a trialkylsilyl terminated dialkylpolysiloxane having a viscosity of from 40,000 to less than 100,000 mPa.s at 25°C and (ii) an amino silicone having a viscosity of from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10 mg of KOH per gram of amino silicone,
- a mixture of emulsifiers comprising one or more nonionic emulsifiers, wherein the mixture of emulsifiers has a HLB value of from 10 to 16, and
- water;

b) one or more cationic guar polymers,
c) one or more α-olefin sulfonate anionic surfactants, and
d) one or more amphoteric or zwitterionic surfactants.

This composition, when applied onto keratin fibres, in particular human keratin fibres such as hair and more particularly the sensitized hair, leads to an improvement of the condition and quality of hair, in terms of hair feel (e.g. smooth feel, soft feel, conditioned feel) and hair manageability: the hair has no or less frizz, has a good styleability/shapeability, less fly away, and a desirable volume. The combing and disentangling of the hair are easier.
In addition, the composition according to the invention makes it possible to significantly improve the silicone deposition onto the keratin fibres. This leads to a superior smooth coating on the fibres, from the roots to the tips, with lesser dry ends.
Even more surprisingly, it has been discovered that the silicones and/or cationic polymers deposition onto the hair is significantly higher with the composition according to the invention compared with a similar composition which does not comprise the particular association disclosed herein, in particular the particular silicone emulsion.
The composition according to the invention has a good detergent power.
When the composition contains foaming surfactants, it generates upon massaging upon a wet substrate a rich and creamy foam, which is easy to spread onto the fibres.
It has also been noted that hair treated with the composition according to the invention is particularly clean and light (no build-up).
The observed properties of the composition according to the invention are particularly long-lasting.
The present invention also relates to a process for treating, in particular for washing and/or conditioning, keratin fibres, preferably human keratin fibres such as the hair, comprising the application onto keratin fibres of this composition.
Another subject-matter of the invention is the use of the composition according to the invention for washing and/or conditioning keratin fibres, preferably the hair.
The invention also relates to a cosmetic process for cleansing keratin fibres, in particular human keratin fibres such as hair, which consists in applying to said keratin fibres a composition as previously defined.
Other subjects, characteristics, aspects and advantages of the invention will emerge even more clearly on reading the description and the example that follows.

In that which follows and unless otherwise indicated, the limits of a range of values are included within this range, in particular in the expressions "of between" and "ranging from ... to ...".
Moreover, the expression "at least one" used in the present description is equivalent to the expression "one or more".
Preferably, the composition according to the invention is free of sulfate, in particular free of sulfate anionic surfactants (i.e. free of anionic surfactants comprising at least one sulfate function but not comprising any carboxylate or sulfonate functions).
For the purposes of the present invention, the term "free of" refers to a composition which does not contain (0%) said component or which contains less than 0.1% by weight of said component, relative to the total weight of the composition.
a) Silicone emulsion
The composition according to the present invention comprises an oil-in-water (or silicone-in-water) emulsion having D50 particle size of less than 350 nm and containing:
- a silicone mixture comprising (i) a trialkylsilyl terminated dialkylpolysiloxane having a viscosity of from 40,000 to less than 100,000 mPa.s at 25°C and (ii) an amino silicone having a viscosity of from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10 mg of KOH per gram of amino silicone,
- a mixture of emulsifiers comprising one or more nonionic emulsifiers, wherein the mixture of emulsifiers has a HLB value of from 10 to 16, and
- water.
In the oil-in-water emulsion, or silicone-in-water emulsion, one liquid phase (the dispersed phase) is dispersed in the other liquid phase (the continuous phase); in the present invention, the silicone mixture, or silicone phase, is dispersed in the continuous aqueous phase.
• (i) trialkylsilyl terminated dialkylpolysiloxanes
The silicone mixture comprises a trialkylsilyl terminated dialkylpolysiloxane that is preferably of formula (IX):
R’3SiO(R’2SiO)pSiR’3
wherein:

- R’, same or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, even better from 1 to 3 carbon atoms, more preferably methyl, and
- p is an integer of from 500 to 2,000, preferably of from 1,000 to 2,000.
The trialkylsilyl terminated (or end-blocked or α,ω-position)
dialkylpolysiloxanes according to the invention have a viscosity of from 40,000 to less than 100,000 mPa.s (100,000 excluded) at 25°C, preferably a viscosity of from 40,000 to 70,000 mPa.s at 25°C, more preferably a viscosity of from 51,000 to 70,000 mPa.s at 25°C.
The trialkylsilyl terminated dialkylpolysiloxanes according to the invention are preferably linear but may contain additionally to the R’2SiO2/2 units (D-units) in formula (IX), R’2SiO3/2 units (T-units) and/or R’2SiO4/2 units (Q-units), wherein R’2, same or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms.
Preferably, R’, same or different, are alkyl radicals, preferably C1-C18 alkyl radicals, such as the methyl, ethyl, n-propyl, isopropyl, 1-n-butyl, 2-n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, neopentyl and tert-pentyl radicals, hexyl radicals, such as the n-hexyl radical, heptyl radicals such as the n-heptyl radical, octyl radicals such as the n-octyl radical and isooctyl radicals, such as the 2,2,4-trimethylpentyl radical, nonyl radicals, such as the n-nonyl radicals, decyl radicals, such as the n-decyl radical, dodecyl radicals, such as the n-dodecyl radical, and octadecyl radicals, such as the n-octadecyl radical; alkenyl radicals such as the vinyl and ally radical; cycloalkyl radicals, such as the cyclopentyl, cyclohexyl, cycloheptyl and methylcyclohexyl radicals; aryl radicals, such as the phenyl, naphthyl, anthryl and phenanthryl radical; alkaryl radicals, such as the o-, m- and p-tolyl radicals, xylyl radicals and ethylphenyl radicals; and aralkyl radicals such as the benzyl radical and the a- and the b-phenylethyl radical. Most preferred is the methyl radical.
Preferably, the trialkylsilyl terminated dialkylpolysiloxanes are trimethylsilyl terminated PDMS (polydimethylsiloxanes or dimethicones).
• (ii) amino silicones
The silicone mixture comprises an amino silicone that are preferably of formula (X):
XR2Si(OSiAR)n(OSiR2)mOSiR2X

wherein:
- R, same or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, even better from 1 to 3 carbon atoms, more preferably methyl;
- X, same or different, is R or a hydroxyl (OH) or a C1-C6-alkoxy group; preferably X is R, i.e. a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, even better from 1 to 3 carbon atoms, more preferably methyl;
- A is an amino radical of the formula -R1-[NR2-R3-]xNR22, or the protonated amino forms of said amino radical, wherein R1 is a C1-C6-alkylene radical, preferably a radical of the formula -CH2CH2CH2- or -CH2CH(CH3)CH2-, R2, same or different, is a hydrogen atom or a C1-C4-alkyl radical, preferably a hydrogen atom, R3 is a C1-C6-alkylene radical, preferably a radical of the formula -CH2CH2-, and x is 0 or 1;
and
- m+n is an integer from 50 to about 1000, preferably from 50 to 600.
Preferably, A is an amino radical of the formula
-R1-[NR2-R3-]xNR22, or the protonated amino forms of said amino radical,
wherein R1 is -CH2CH2CH2- or -CH2CH(CH3)CH2-, R2 are hydrogen atoms, R3 is -CH2CH2-, and x is 1.
Preferably, R, same or different, are alkyl radicals, preferably C1-C18 alkyl radicals, such as the methyl, ethyl, n-propyl, isopropyl, 1-n-butyl, 2-n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, neopentyl and tert-pentyl radicals, hexyl radicals, such as the n-hexyl radical, heptyl radicals such as the n-heptyl radical, octyl radicals such as the n-octyl radical and isooctyl radicals, such as the 2,2,4-trimethylpentyl radical, nonyl radicals, such as the n-nonyl radicals, decyl radicals, such as the n-decyl radical, dodecyl radicals, such as the n-dodecyl radical, and octadecyl radicals, such as the n-octadecyl radical; alkenyl radicals such as the vinyl and ally radical; cycloalkyl radicals, such as the cyclopentyl, cyclohexyl, cycloheptyl and methylcyclohexyl radicals; aryl radicals, such as the phenyl, naphthyl, anthryl and phenanthryl radical; alkaryl radicals, such as the o-, m- and p-tolyl radicals, xylyl radicals and ethylphenyl radicals; and aralkyl radicals such as the benzyl radical and the a- and the b-phenylethyl radical. Most preferred is the methyl radical.
The amino silicones according to the invention have a viscosity of from 1,000 to 15,000 mPa.s at 25°C, preferably of from 1,500 to 15,000 mPa.s.

The amino silicones according to the invention have an amine value of from 2 to 10 mg of KOH per gram of amino silicone, preferably of from 3.5 to 8 mg.
The mole percent of amine functionality is preferably in the range of from about 0.3 to about 8%.
Examples of amino silicones useful in the silicone mixture according to the invention include trialkylsilyl terminated amino silicone.
Most preferably, amino silicones are trimethylsilyl terminated aminoethylaminopropylmethylsiloxane, most preferably trimethylsilyl terminated aminoethylaminopropylmethylsiloxane - dimethylsiloxane copolymers. The amino radical A can be protonated partially or fully by adding acids to the amino silicone, wherein the salt forms of the amino radical are obtained. Examples of acids are carboxylic acids with 3 to 18 carbon atoms which can be linear or branched, such as formic acid, acetic acid, propionic acid, butyric acid, pivalic acid, sorbic acid, benzoic acid, salicylic acid. The acids are preferably used in amounts of from 0.1 to 2.0 mol per 1 mol of amino radical A in the amino silicone of formula (X).
The silicone mixture preferably comprises (i) one or more trialkylsilyl terminated dialkylpolysiloxanes having a viscosity of from 40,000 to less than 100,000 mPa.s at 25°C in a quantity of from 70 to 90% by weight, preferably from 75 to 85% by weight and (ii) one or more amino silicones having a viscosity of from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10 mg of KOH per gram of amino silicone, in a quantity of from 10 to 30% by weight, preferably from 15 to 25% by weight, relative to the total weight of the silicone mixture.
• mixture of emulsifiers
The oil-in-water emulsion further comprises a mixture of emulsifiers that comprises one or more nonionic emulsifiers. It could optionally comprise one or more cationic surfactants.
The mixture of emulsifiers has a HLB value from 10 to 16.
The nonionic emulsifiers can be chosen among the nonionic surfactants as described hereunder.
Mention may be made of alcohols, α-diols and (C1-20)alkylphenols, these compounds being polyethoxylated and/or polypropoxylated and/or polyglycerolated, the number of ethylene oxide and/or propylene oxide groups possibly ranging from 1 to 100, and the number of glycerol groups possibly ranging from 2 to 30; or

alternatively these compounds comprising at least one fatty chain comprising from 8 to 30 carbon atoms and especially from 16 to 30 carbon atoms.
Mention may also be made of condensates of ethylene oxide and of propylene oxide with fatty alcohols; polyethoxylated fatty amides preferably having from 2 to 30 ethylene oxide units, polyglycerolated fatty amides comprising on average from 1 to 5, and in particular from 1.5 to 4, glycerol groups; ethoxylated fatty acid esters of sorbitan preferably containing from 2 to 40 ethylene oxide units, fatty acid esters of sucrose, polyoxyalkylenated and preferably polyoxyethylenated fatty acid esters containing from 2 to 150 mol of ethylene oxide, including oxyethylenated plant oils, N-(C6-24 alkyl)glucamine derivatives, amine oxides such as (C10-14 alkyl)amine oxides or N-(C10-14 acyl)aminopropylmorpholine oxides.
Mention may also be made of nonionic surfactants of alkyl(poly)glycoside type, represented especially by the following general formula:
R1O-(R2O)t-(G)v
in which:
- R1 represents a linear or branched alkyl or alkenyl radical comprising 6 to 24 carbon atoms and especially 8 to 18 carbon atoms, or an alkylphenyl radical whose linear or branched alkyl radical comprises 6 to 24 carbon atoms and especially 8 to 18 carbon atoms;
- R2 represents an alkylene radical comprising 2 to 4 carbon atoms,
- G represents a sugar unit comprising 5 to 6 carbon atoms,
- t denotes a value ranging from 0 to 10 and preferably 0 to 4,
- v denotes a value ranging from 1 to 15 and preferably 1 to 4.
Preferably, the alkylpolyglycoside surfactants are compounds of the formula
described above in which:
- R1 denotes a linear or branched, saturated or unsaturated alkyl radical
comprising from 8 to 18 carbon atoms,
- R2 represents an alkylene radical comprising 2 to 4 carbon atoms,
- t denotes a value ranging from 0 to 3 and preferably equal to 0,
- G denotes glucose, fructose or galactose, preferably glucose;
- the degree of polymerization, i.e. the value of v, possibly ranging from 1 to 15 and preferably from 1 to 4; the mean degree of polymerization more particularly being between 1 and 2.
The glucoside bonds between the sugar units are generally of 1-6 or 1-4 type and preferably of 1-4 type. Preferably, the alkyl(poly)glycoside surfactant is an

alkyl(poly)glucoside surfactant. C8/C16 alkyl(poly)glycosides 1,4, and especially decyl glucosides and caprylyl/capryl glucosides, are most particularly preferred.
Among the commercial products, mention may be made of the products sold by the company COGNIS under the names PLANTAREN® (600 CS/U, 1200 and 2000) or PLANTACARE® (818, 1200 and 2000); the products sold by the company SEPPIC under the names ORAMIX CG 110 and ORAMIX NS 10; the products sold by the company BASF under the name LUTENSOL GD 70, or else the products sold by the company CHEM Y under the name AG10 LK.
The nonionic emulsifiers could preferably be chosen among ethoxylated aliphatic alcohols, polyoxyethylene surfactants, carboxylic esters, polyethylene glycol esters, sorbitol ester and their ethoxylated derivatives, glycol esters of fatty acids, carboxylic amides, monoalkanolamine condensates, polyoxyethylene fatty acid amides.
Preferably, nonionic emulsifiers are selected from:
(i) polyoxyalkylene alkyl ethers, especially (poly)ethoxylated fatty alcohols of formula:
R3-(OCH2CH2)cOH
with:
- R3 representing a linear or branched C8-C40 alkyl or alkenyl group,
preferably C8-C30 alkyl or alkenyl group, optionally substituted with one or more
hydroxyl groups, and
- c being an integer between 1 and 200 inclusive, preferentially between 2 and
150 and more particularly between 4 and 50, most preferably between 8 and 20.
The (poly)ethoxylated fatty alcohols are more particularly fatty alcohols comprising from 8 to 22 carbon atoms, oxyethylenated with 1 to 30 mol of ethylene oxide (1 to 30 OE);
(ii) polyoxyalkylene (C8-C32)alkylphenyl ethers,
(iii) polyoxyalkylene sorbitan (C8-C32) fatty acid esters, especially polyethoxylated fatty acid esters of sorbitan preferably containing from 2 to 40 ethylene oxide units, most preferably from 2 to 20 ethylene oxide units; preferably polyoxyethylenated sorbitan (C10-C24) fatty acid esters preferably containing from 2 to 40 ethylene oxide units, most preferably from 2 to 20 ethylene oxide units; and
(iv) polyoxyethylenated (C8-C32) fatty acid esters containing for example from 2 to 150 mol of ethylene oxide; preferably polyoxyethylenated (C10-C24) fatty acid esters containing for example from 2 to 150 mol of ethylene oxide.

Preferably, the nonionic emulsifiers could be selected from alkyl ether of polyalkyleneglycol and alkyl esters of polyalkyleneglycol; preferably of polyethyleneglycol (PEG).
Some useful emulsifiers are:
- polyethyleneglycol octyl ether; polyethyleneglycol lauryl ether;
polyethyleneglycol tridecyl ether; polyethyleneglycol cetyl ether; polyethyleneglycol
stearyl ether; among these, mention may be made more particularly of trideceth-3,
trideceth-10 and steareth-6.
- polyethyleneglycol nonylphenyl ether; polyethyleneglycol dodecylphenyl
ether; polyethyleneglycol cetylphenyl ether; polyethyleneglycol stearylphenyl ether;
- polyethyleneglycol sorbitan monostearate, polyethyleneglycol sorbitan
monooleate.
- polyethyleneglycol stearate, and especially PEG-100 stearate.
Most preferably, the nonionic emulsifiers are chosen among steareth-6, PEG-100 stearate, trideceth-3 and trideceth-10 and mixtures of these compounds; preferably, all these emulsifiers are present in the mixture of emulsifiers.
The mixture of emulsifiers may comprise one or more cationic emulsifiers that can be selected among tetraalkylammonium halides, tetraarylammonium halides, tetraalkylarylammonium halides, and their salts; quaternary ammonium compounds including salts; preferably, the cationic emulsifiers could be chosen among cetrimonium halides or behentrimonium halides, such as chloride.
The oil-in-water emulsion preferably comprises the mixture of emulsifiers in a total amount of from 5 to 15% by weight, more preferably of from 8 to 15% by weight, most preferably of from 10 to 12% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion preferably comprises nonionic emulsifiers in a total amount of from 5 to 15% by weight, more preferably of from 8 to 15% by weight, most preferably of from 10 to 12% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion preferably comprises cationic emulsifiers, when present, in a total amount of from 0.5 to 1.5% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion preferably comprises the silicone mixture in a total amount of from 40 to 60% by weight, more preferably of from 45 to 55% by weight, relative to the total weight of the emulsion.

The oil-in-water emulsion preferably comprises the trialkylsilyl terminated dialkylpolysiloxane(s) in a total amount of from 35 to 45% by weight, more preferably of from 38-42% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion preferably comprises the amino silicone(s) in a total amount of from 5 to 15% by weight, more preferably of from 8-12% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion comprises water preferably in an amount of from 25 to 50% by weight, more preferably of from 30 to 45% by weight, most preferably of from 35 to 42% by weight, relative to the total weight of the emulsion.
The oil-in-water emulsion could additionally comprise a biocide, such as phenoxyethanol, that could be present in the emulsion in a quantity of from 0.5 to 1% by weight, relative to the total weight of the emulsion.
A method of preparation of the oil-in-water emulsion preferably comprises:
- a step of mixing one or more trialkylsilyl terminated dialkylpolysiloxanes of viscosity of from 40,000 to less than 100,000 mPa.s at 25°C and one or more amino silicones of viscosity of from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10 mg of KOH per gram of amino silicone, at a temperature of from 15°C to 40°C, preferably at 25°C, to obtain a mixed silicone fluid, then
- a step of adding a mixture of emulsifiers comprising one or more nonionic emulsifiers, wherein the mixture of emulsifiers has a HLB value from 10 to 16, to the mixed silicone fluid to obtain a silicone-emulsifier-mixture, then
- a step of homogenizing the silicone-emulsifier-mixture followed by
- a step of adding, preferably step-wise, water, preferably demineralized
water, to obtain an oil-in-water emulsion having D50 particle size of less than 350 nm.
The method of preparation of the oil-in-water emulsion could further comprise an additional step of adding a biocide. Biocide could be added for preserving the emulsion against microbial contamination. The biocide could be added at the level of for preserving emulsion against microbial contamination and obtaining the said emulsion. The quantity of the biocide depends on the type of biocide and as recommended by the manufacturer.
The preparation of the mixture of emulsifiers could be made by mixing one or more nonionic emulsifiers.
The pH of the oil-in-water emulsion after neutralization (i.e. after addition of the biocide) is preferably of from 4 to 6.

The oil-in-water emulsion has D50 particle size of less than 350 nm, preferably from 100 to 300 nm, more preferably from 150 to 250 nm, even more preferentially from 150 to 225 nm, and most preferably from 160 to 200 nm. The D50 particle size corresponds to the average hydrodynamic particle diameter and is expressed in volume. The D50 particle size can be measured by using a device ZetaSizer from Malvern, UK, model Nano-ZS, which is based on the Photon Correlation Spectroscopy (PCS) method.
• Particle size measurement
Emulsion particle size can be measured by using a device ZetaSizer from Malvern, UK, model Nano-ZS which is based on the Photon Correlation Spectroscopy (PCS) method. The D50 value of particle size (average hydrodynamic particle diameter) is measured, wherein the evaluating algorithm is “cumulants analysis”.
For example, take 0.5 g of the emulsion sample in a 250 ml beaker, 100 ml of demineralized water is poured into it and then mixed properly to get the sample test solution. The sample test solution is poured in the cuvette cell and is put into the slot of the instrument to measure the particle size of the emulsion. D50 is defined as the value of the particle diameter at 50% in the cumulative distribution. For example, if D50=170 nm, then 50% of the particles in the sample are larger than 170 nm, and 50% smaller than 170 nm or about 50% by volume of all droplets in said emulsion is 170 nm.
• Viscosity measurement
The viscosity, especially of the silicones or of the emulsion, is measured at 25°C and at atmospheric pressure.
For viscosities between 1000 to 40,000 mPa.s at 25ºC: the viscosity can be measured with an Anton Paar Rheometer; model MCR101, geometry single gap cylinder: CC27 spindle and shear rate of 1 s-1 for 2 minutes, at 25°C.
For viscosities between 40,000 to 100,000 mPa.s at 25ºC: the viscosity can be measured with an Anton Paar Rheometer; model MCR101, 25-6 cone (Cone-plate geometry: 25 mm dia. / 6° cone); the “Zero gap” setting being made and with a shear rate of 1 s-1 for 2 minutes, at 25°C.
Three measurements are made for each sample and the viscosity value is taken at 60 seconds. MCR Rheometer Series products work as per USP (US Pharmacopeia Convention) 912 – Rotational Rheometer methods.

• Amine value measurement
The amine value is determined by acid-base titration using a potentiometer [Make: Veego; Model: VPT-MG]. 0.6 g of sample is taken in a 500 ml beaker and a toluene-butanol 1:1 mixture is added and stirred to mix the sample thoroughly; then the sample solution is titrated with a 0.1(N) HCl solution. A determination of the blank value with the toluene-butanol 1:1 mixture is also done. The calculation of the amine value is done by the above-mentioned potentiometer.
The amine value is calculated according to the formula:
56.11 × (V - VBlank) × N / W mg KOH/ g of sample,
wherein
V= Volume of HCl required in ml, VBlank= Volume of HCl for blank value (without sample) with the toluene-butanol 1:1 mixture in ml;
N= Normality of HCl, i.e. 0.1 N, W= weight of the sample taken in gram.
• HLB Value
The term HLB is well known to those skilled in the art, and denotes the hydrophilic-lipophilic balance of a surfactant or emulsifier. In the present invention, HLB values refer to the values at 25°C and at atmospheric pressure.
The HLB can be measured by experimental determination or can be calculated.
Calculation of HLB value of nonionic surfactant is calculated according to the equation: HLB = (E + P)/5, with E being the weight percentage of oxyethylene content and P being the weight percentage of polyhydric alcohol content, described in to the publication Griffin, J. Soc. Cosm. Chem. 1954 (vol.5, n°4), pp.249-256.
It can also experimentally be determined according to the book of F. Puisieux and M. Seiller, entitled "Galenica 5: Les systèmes disperses - Tome I - Agents de surface et émulsions - Chapitre IV - Notions de HLB et de HLB critique, pp.153-194 - paragraph 1.1.2. Determination de HLB par voie experimentale [Experimental determination of HLB], pp.164-180".
The calculated HLB is the preferred HLB values that should be taken into account.
Said calculated HLB could be defined as being the following:
“calculated HLB = 20 × molar mass of the hydrophilic part/total molar mass.”

For an oxyethylenated fatty alcohol, the hydrophilic part corresponds to the oxyethylene units condensed onto the fatty alcohol and the “calculated HLB” then corresponds to the “Griffin HLB” as defined hereabove.
For an ester or an amide, the hydrophilic part is naturally defined as being beyond the carbonyl group, starting from the fatty chain(s).
For ionic surfactants/emulsifiers, the HLB value of individual surfactant/emulsifier can be calculated applying the Davies formula as described in Davies JT (1957), "A quantitative kinetic theory of emulsion type, I. Physical chemistry of the emulsifying agent", Gas/Liquid and Liquid/Liquid Interface (Proceedings of the International Congress of Surface Activity): 426-438.
According to the formula, the HLB is derived by summing the hydrophilic/hydrophobic contribution afforded by the structural components of the emulsifier:
HLB = (hydrophilic groups numbers) – n(group number per CH2 group) +7.
Approximate HLB values for some cationic emulsifiers are given in Table IV, in “Cationic emulsifiers in cosmetics”, GODFREY, J. Soc. Cosmetic Chemists (1966) 17, pp17-27.
When two emulsifiers A and B of known HLB are blended for use, the HLBMix is said to be the required HLB for the mixture. This is expressed by the equation (WAHLBA + WBHLBB)/ (WA + WB) = HLBMix, where WA = the amount (weight) of the first emulsifier (A) used, and WB = the amount (weight) of the second emulsifier (B); HLBA, HLBB = the assigned HLB values for emulsifiers A and B; HLBMix = the HLB of the mixture.
The oil-in-water emulsion used in the present invention is for example described in WO 2017/108824.
The composition according to the invention preferably comprises the oil-in-water emulsion a) in an amount ranging from 0.1% to 20% by weight, more preferably from 0.3 % to 15% by weight, even more preferably from 0.5% to 12% by weight, better from 1 to 10%, even better from 1,5 to 5% by weight, relative to the total weight of the composition.
The composition according to the invention preferably comprises the trialkylsilyl terminated dialkylpolysiloxane(s) having a viscosity of from 40,000 to less than 100,000 mPa.s at 25°C in a total amount ranging from 0.1% to 8% by weight, more preferably from 0.2 % to 5% by weight, even more preferably from 0.5% to 4%

by weight, better from 0,6 to 3% by weight, relative to the total weight of the composition.
The composition according to the invention preferably comprises the amino silicone(s) having a viscosity of from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10 mg of KOH per gram of amino silicone, in a total amount ranging from 0.01% to 5% by weight, more preferably from 0.05 % to 3% by weight, even more preferably from 0.1 % to 2% by weight, better from 0.15 to 1% by weight, relative to the total weight of the composition.
b) Cationic polysaccharides
The composition according to the invention comprises one or more cationic polysaccharides.
The term "cationic polysaccharide" means any polysaccharide comprising cationic groups and/or groups that can be ionized to cationic groups, and not comprising anionic groups and/or groups that can be ionized to anionic groups.
Among the cationic polysaccharides that can be used according to the invention, mention may be made more particularly of cellulose ether derivatives comprising quaternary ammonium groups, cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer and cationic galactomannan gums.
The cellulose ether derivatives including quaternary ammonium groups are notably described in FR 1 492 597, and mention may be made of the polymers sold under the name Ucare Polymer JR (JR 400 LT, JR 125 and JR 30M) or LR (LR 400 and LR 30M) by the company Amerchol. These polymers are also defined in the CTFA dictionary as quaternary ammoniums of hydroxyethylcellulose that have reacted with an epoxide substituted with a trimethylammonium group.
Cationic cellulose copolymers or cellulose derivatives grafted with a water-
soluble quaternary ammonium monomer are described notably in patent US 4 131 576,
and mention may be made of hydroxyalkyl celluloses, for instance hydroxymethyl,
hydroxyethyl or hydroxypropyl celluloses notably grafted with a
methacryloylethyltrimethylammonium, methacrylamidopropyltrimethylammonium or dimethyldiallylammonium salt. The commercial products corresponding to this definition are more particularly the products sold under the names Celquat L 200 and Celquat H 100 by the company National Starch.

The cationic galactomannan gums are described more particularly in US
patents 3 589 578 and 4 031 307, and mention may be made of guar gums comprising
cationic trialkylammonium groups, preferably C1-C6 trialkylammonium groups. Use
is made, for example, of guar gums modified with a 2,3-
epoxypropyltrimethylammonium salt (for example, chloride). Such products are especially sold under the names JAGUAR C13 S, JAGUAR C 15, JAGUAR C 17 or JAGUAR C162 by the company Rhodia.
Preferably, the cationic polysaccharide(s) is(are) chosen from cationic celluloses, cationic galactomannan gums, and mixtures thereof.
Preferentially, the cationic polysaccharide(s) is(are) chosen from cellulose ether derivatives comprising quaternary ammonium groups, guar gums comprising cationic trialkylammonium groups, and mixtures thereof.
More preferably, cationic polysaccharide(s) is(are) chosen from cationic galactomannan gums, better from guar gums comprising cationic trialkylammonium groups. Even better, the cationic polysaccharide is guar hydroxypropyl ammonium chloride.
Preferably, the total amount of cationic polysaccharide(s) cb) ranges from 0.01 to 5% by weight, more preferentially from 0.015 to 4% by weight, even more preferentially from 0.02 to 3% by weight, better from 0.05 to 2% by weight, and even better from 0.1 to 1% by weight, relative to the total weight of the composition.
Preferably, when the cationic polysaccharide is a guar gum comprising cationic trialkylammonium groups, the total amount of said cationic polysaccharide ranges from 0.01 to 5% by weight, more preferentially from 0.015 to 4% by weight, even more preferentially from 0.02 to 3% by weight, better from 0.05 to 2% by weight, and even better from 0.1 to 1% by weight, relative to the total weight of the composition.
Preferably, when the cationic polysaccharide is guar
hydroxypropyltrimonium chloride, the total amount of said cationic polysaccharide ranges from 0.01 to 5% by weight, more preferentially from 0.015 to 4% by weight, even more preferentially from 0.02 to 3% by weight, better from 0.05 to 2% by weight, and even better from 0.1 to 1% by weight, relative to the total weight of the composition.
c) α-olefin sulfonate anionic surfactants

The composition according to the invention also comprises on or more anionic surfactants chosen from α-olefin sulfonates.
The term “anionic surfactant” means a surfactant including, as ionic or ionizable groups, only anionic groups.
In the present description, a species is termed as being “anionic” when it bears at least one permanent negative charge or when it can be ionized as a negatively charged species, under the conditions of use of the composition of the invention (for example the medium or the pH) and not comprising any cationic charge.
It is understood in the present description that the sulfonate anionic surfactants comprise at least one sulfonate function (-SO3H or -SO3 ) and may optionally also comprise one or more sulfate functions, but do not comprise any carboxylate functions.
The alkyl groups of the α-olefin sulfonate anionic surfactants comprise from 6 to 30 carbon atoms, especially from 8 to 28, better still from 10 to 24 or even from 12 to 22 carbon atoms, even better from 12 to 20 carbon atoms; the aryl group preferably denotes a phenyl or benzyl group.
These compounds are possibly polyoxyalkylenated, especially polyoxyethylenated, and then preferably comprising from 1 to 50 ethylene oxide units and better still from 2 to 10 ethylene oxide units.
When the α-olefin sulfonate anionic surfactant is in salt form, the said salt may be chosen from alkali metal salts, such as the sodium or potassium salt, ammonium salts, amine salts and in particular amino alcohol salts, and alkaline-earth metal salts, such as the magnesium salt.
Preferentially, the α-olefin sulfonate anionic surfactants are chosen, alone or as a mixture, from C6-C24 and notably C12-C20 α-olefin sulfonates, in particular in the form of alkali metal or alkaline-earth metal, ammonium or amino alcohol salts.
Preferably, the anionic surfactant(s) of sulfonate type are chosen from α-olefin sulfonates, and notably C6-C24 and notably C12-C20 α-olefin sulfonates, and also salts thereof and mixtures thereof.
The total content of anionic surfactant(s) chosen from α-olefin sulfonates and mixtures thereof ranges preferably from 0.1 to 25%by weight, more preferably ranges from 1 to 20% by weight, preferentially from 3 to 15% by weight and more preferentially from 5 to 10% by weight relative to the total weight of the composition.

In a preferred embodiment, the total content of anionic surfactant(s) chosen from (C6-C24 and notably C12-C20 α-olefin sulfonates and mixtures thereof ranges preferably from 0.1 to 25% by weight, more preferably ranges from 1 to 20% by weight, preferentially from 3 to 15% by weight and more preferentially from 5 to 10% by weight relative to the total weight of the composition.
d) Amphoteric or zwitterionic surfactants
The composition according to the invention also comprises one or more amphoteric or zwitterionic surfactants.
In particular, the amphoteric or zwitterionic surfactant(s) that may be used in the present invention, which are preferably non-silicone, may notably be derivatives of optionally quaternized secondary or tertiary aliphatic amines, in which derivatives the aliphatic group is a linear or branched chain including from 8 to 22 carbon atoms, said amine derivatives containing at least one anionic group, for instance a carboxylate, sulfonate, sulfate, phosphate or phosphonate group.
Mention may in particular be made of (C8-C20)alkylbetaines, (C8-
C20)alkylsulfobetaines, (C8-C20)alkylamido(C1-C6)alkylbetaines and (C8-
C20)alkylamido(C1-C6)alkylsulfobetaines, and mixtures thereof.
Among the optionally quaternized derivatives of secondary or tertiary aliphatic amines that may be used, as defined above, mention may also be made of the compounds having the respective structures (III) and (IV) below:
Ra-CONHCH2CH2-N+(Rb)(Rc)-CH2COO-, M+, X- (III)
in which formula (III):
- Ra represents a C10 to C30 alkyl or alkenyl group derived from an acid
RaCOOH preferably present in hydrolysed coconut kernel oil; preferably, Ra represents
a heptyl, nonyl or undecyl group;
- Rb represents a β-hydroxyethyl group;
- Rc represents a carboxymethyl group;
- M+ represents a cationic counterion derived from an alkali metal or alkaline-earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine; and
- X- represents an organic or mineral anionic counterion, such as that chosen from halides, acetates, phosphates, nitrates, (C1-C4)alkyl sulfates, (C1-C4)alkyl- or (C1-C4)alkylarylsulfonates, in particular methyl sulfate and ethyl sulfate; or alternatively M+ and X- are absent;

Ra’-CONHCH2CH2-N(B)(B’) (IV) in which formula (IV):
- B represents the group -CH2CH2OX’;
- B’ represents the group -(CH2)zY’, with z = 1 or 2;

- X’ represents the group -CH2COOH, -CH2-COOZ’, -CH2CH2COOH or CH2CH2-COOZ’, or a hydrogen atom;
- Y’ represents the group -COOH, -COOZ’ or -CH2CH(OH)SO3H or the group CH2CH(OH)SO3-Z’;

- Z’ represents a cationic counterion derived from an alkali metal or alkaline-earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine;
- Ra’ represents a C10 to C30 alkyl or alkenyl group of an acid Ra’-COOH which is preferably present in coconut kernel oil or in hydrolysed linseed oil, preferably Ra’ an alkyl group, notably a C17 group, and its iso form, or an unsaturated C17 group.
These compounds are classified in the CTFA dictionary, 5th edition, 1993,
under the names disodium cocoamphodiacetate, disodium lauroamphodiacetate,
disodium caprylamphodiacetate, disodium capryloamphodiacetate, disodium
cocoamphodipropionate, disodium lauroamphodipropionate, disodium
caprylamphodipropionate, disodium capryloamphodipropionate,
lauroamphodipropionic acid and cocoamphodipropionic acid.
By way of example, mention may be made of the cocoamphodiacetate sold by the company Rhodia under the trade name Miranol® C2M Concentrate.
Use may also be made of compounds of formula (V):
Ra”-NHCH(Y”)-(CH2)nCONH(CH2)n’-N(Rd)(Re) (V)
in which formula (V):
- Y” represents the group -COOH, -COOZ” or -CH2-CH(OH)SO3H or the group CH2CH(OH)SO3-Z”;
- Rd and Re, independently of each other, represent a C1 to C4 alkyl or hydroxyalkyl radical;

- Z’’ represents a cationic counterion derived from an alkali metal or alkaline-earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine;
- Ra” represents a C10 to C30 alkyl or alkenyl group of an acid Ra”-COOH which is preferably present in coconut kernel oil or in hydrolysed linseed oil; and

- n and n’ denote, independently of each other, an integer ranging from 1 to 3.
Among the compounds of formula (V), mention may be made of the compound classified in the CTFA dictionary under the name sodium diethylaminopropyl cocoaspartamide and sold by the company Chimex under the name Chimexane HB.
These compounds may be used alone or as mixtures.
Among the amphoteric or zwitterionic surfactants mentioned above, use is
advantageously made of (C8-C20)alkylbetaines, such as cocoyl betaine (C8-
C20)alkylamido(C3-C8)alkylbetaines, such as cocamidopropylbetaine, (C8-
C20)alkylamphoacetates, (C8-C20)alkylamphodiacetates and mixtures thereof; and
preferably (C8-C20)alkylbetaines, (C8-C20)alkylamido(C3-C8)alkylbetaines and
mixtures thereof.
Preferably, the amphoteric or zwitterionic surfactant(s) are chosen from (C8-C20)alkylbetaines, (C8-C20)alkylamido(C3-C8)alkylbetaines and mixtures thereof, better still from (C8-C20)alkylamido(C3-C8)alkylbetaines and mixtures thereof.
More preferably, the composition according to the invention comprises one or more amphoteric or zwitterionic surfactant(s) chosen from (C8-C20)alkylbetaines and one or more amphoteric or zwitterionic surfactant(s) chosen from(C8-C20)alkylamido(C3-C8)alkylbetaines.
The total content of the amphoteric or zwitterionic surfactant(s) preferably ranges from 0.1 to 15% by weight, more preferentially from 0.5 to 10% by weight, and better still from 1 to 5% by weight, relative to the total weight of the composition.
In a preferred embodiment, the total content of amphoteric or zwitterionic
surfactant(s) chosen from (C8-C20)alkylbetaines, (C8-C20)alkylamido(C3-
C8)alkylbetaines and mixtures thereof ranges from 0.1 to 15% by weight, more preferentially from 0.5 to 10% by weight, and better still from 1 to 5% by weight relative to the total weight of the composition.
Additional anionic surfactants different from α-olefin sulfonates c)
The composition according to the invention may further comprises one or
more anionic surfactants different from α-olefin sulfonates c). These anionic
surfactants are called additional anionic surfactants.

The additional anionic surfactants may be sulfate and/or carboxylic (or carboxylate) surfactants, preferably carboxylic surfactants. Needless to say, a mixture of these surfactants may be used.
The carboxylate anionic surfactants that may be used thus include at least one carboxylic or carboxylate function (-COOH or -COO-).
They may be chosen from the following compounds: fatty acids,
acylglycinates, acyllactylates, acylsarcosinates, acylglutamates; alkyl-D-
galactosideuronic acids, alkyl ether carboxylic acids, alkyl(C6-C30 aryl) ether carboxylic acids, alkylamido ether carboxylic acids; and also the salts of these compounds; and mixtures thereof;
the alkyl and/or acyl groups of these compounds including from 6 to 30 carbon atoms, notably from 12 to 28, even better still from 14 to 24 or even from 16 to 22 carbon atoms; the aryl group preferably denoting a phenyl or benzyl group;
these compounds possibly being polyoxyalkylenated, notably
polyoxyethylenated, and then preferably including from 1 to 50 ethylene oxide units and better still from 2 to 10 ethylene oxide units.
Use may also be made of C6-C24 alkyl monoesters of polyglycoside-polycarboxylic acids such as C6-C24 alkyl polyglycoside-citrates, C6-C24 alkyl polyglycoside-tartrates and C6-C24 alkyl polyglycoside-sulfosuccinates, and salts thereof.
Preferentially, the carboxylate anionic surfactants are chosen, alone or as a mixture, from:
- fatty acids;
- acylglutamates, notably of C6-C24 or even C12-C20, such as stearoylglutamates, and in particular disodium stearoylglutamate;
- acylsarcosinates, notably of C6-C24 or even C12-C20, such as palmitoylsarcosinates, and in particular sodium palmitoylsarcosinate;
- acyllactylates, notably of C12-C28 or even C14-C24, such as behenoyllactylates, and in particular sodium behenoyllactylate;
- C6 -C24 and notably C12 -C20 acylglycinates;
- (C6-C24)alkyl ether carboxylates, and notably (C12-C20)alkyl ether carboxylates;
- polyoxyalkylenated (C6-C24)alkyl(amido) ether carboxylic acids, in particular those including from 2 to 50 ethylene oxide groups;

in particular in the form of alkali metal or alkaline-earth metal, ammonium or amino alcohol salts.
Among the above carboxylic surfactants, mention may be made most particularly of surfactants of fatty acid type, notably of C6-C30. These surfactants are preferably chosen from the compounds of formula (a) below: R-C(O)-OX (a)
with
- X denoting a hydrogen atom, an ammonium ion, an ion derived from an alkali metal or an alkaline-earth metal or an ion derived from an organic amine, preferably a hydrogen atom, and
- R denoting a linear or branched, saturated or unsaturated alkyl group of 5 to 29 carbon atoms.
Preferably, R denotes a linear or branched, saturated or unsaturated alkyl group of 7 to 23 carbon atoms, preferably of 11 to 21 carbon atoms.
Among the fatty acids, mention may be made of lauric acid, palmitic acid, myristic acid, stearic acid, oleic acid and behenic acid.
The fatty acids are advantageously chosen from palmitic acid, myristic acid, stearic acid, and mixtures thereof.
Among the above carboxylic surfactants, mention may be made most particularly of surfactants of sarcosinate type, notably chosen from (C6-C30)acyl sarcosinates of formula (I) below:
R-C(O)-N(CH3)-CH2-C(O)-OX (I)
with
- X denoting a hydrogen atom, an ammonium ion, an ion derived from an
alkali metal or an alkaline-earth metal or an ion derived from an organic amine,
preferably a hydrogen atom, and
- R denoting a linear or branched alkyl group of 5 to 29 carbon atoms.
Preferably, R denotes a linear or branched alkyl group of 8 to 24 carbon atoms,
preferably of 12 to 20 carbon atoms.
Among the (C6-C30)acyl sarcosinates of formula (I) that may be used in the present composition, mention may be made of palmitoyl sarcosinates, stearoyl sarcosinates, myristoyl sarcosinates, lauroyl sarcosinates and cocoyl sarcosinates, in acid form or in salified form.

The anionic surfactant(s) of sarcosinate type are advantageously chosen from sodium lauroyl sarcosinate, stearoylsarcosine, myristoylsarcosine, and mixtures thereof, preferably from stearoylsarcosine, myristoylsarcosine, and mixtures thereof.
Among the above carboxylic surfactants, mention may also be made of polyoxyalkylenated alkyl(amido) ether carboxylic acids and salts thereof, in particular those including from 2 to 50 alkylene oxide and in particular ethylene oxide groups, such as the compounds sold by the company Kao under the Akypo names.
The polyoxyalkylenated alkyl(amido) ether carboxylic acids that may be used are preferably chosen from those of formula (II):
R1-(OC2H4)n-OCH2COOA (II)
in which:
- R1 represents a linear or branched C6-C24 alkyl or alkenyl radical, a (C8-
C9)alkylphenyl radical, a radical R2CONH-CH2-CH2- with R2 denoting a linear or
branched C9-C21 alkyl or alkenyl radical;
preferably, R1 is a C8-C20 and preferably C8-C18 alkyl radical, and aryl preferably denotes phenyl,
- n is an integer or decimal number (mean value) ranging from 2 to 24 and preferably from 2 to 10,
- A denotes H, ammonium, Na, K, Li, Mg or a monoethanolamine or triethanolamine residue.
Use may also be made of mixtures of compounds of formula (II), in particular mixtures of compounds bearing different groups R1.
The polyoxyalkylenated alkyl(amido) ether carboxylic acids that are particularly preferred are those of formula (II) in which:
- R1 denotes a C12-C14 alkyl, cocoyl, oleyl, nonylphenyl or octylphenyl radical,
- A denotes a hydrogen or sodium atom, and
- n ranges from 2 to 20, preferably from 2 to 10.
Even more preferentially, use is made of the compounds of formula (II) in which R1 denotes a C12 alkyl radical, A denotes a hydrogen or sodium atom and n ranges from 2 to 10.
Preferably, the additional anionic surfactants different from α-olefin sulfonates c) are chosen from carboxylic surfactants, preferentially from (C6-C30)acyl sarcosinates of formula (I), more preferentially from sodium lauroyl sarcosinate,

stearoylsarcosine, myristoylsarcosine, and mixtures thereof, preferably from stearoylsarcosine, myristoylsarcosine, and mixtures thereof, even more preferentially the additional anionic surfactant is sodium lauroyl sarcosinate.
The total content of the additional anionic surfactants different from α-olefin sulfonates c) preferably ranges from 0.1 to 15% by weight, more preferentially from 0.5 to 10% by weight, and better still from 0.7 to 5% by weight, relative to the total weight of the composition.
In a preferred embodiment, the total content of carboxylic surfactants, preferentially from (C6-C30)acyl sarcosinates, preferably ranges from 0.1 to 15% by weight, more preferentially from 0.5 to 10% by weight, and better still from 0.7 to 5% by weight, relative to the total weight of the composition.
Preferably, the composition according to the invention does not comprise anionic surfactant of sulfate type.
The total content of anionic surfactant(s) (i.e of α-olefin sulfonates and additional anionic surfactants) ranges preferably from preferably from 0.1 to 30% by weight, more preferably ranges from 1 to 25% by weight, preferentially from 3 to 20% by weight and more preferentially from 5 to 15%by weight relative to the total weight of the composition.
Additional cationic polymers different from cationic polysaccharides b)
The composition according to the invention may further comprises one or more cationic polymers different from cationic polysaccharides b). These cationic polymers are called additional cationic polymers, they are different from cationic polysaccharides.
The cationic polymers are not silicone-based (they do not comprise any Si-O units).
The cationic polymers may be associative or non-associative.
The preferred cationic polymers are chosen from those that contain units including primary, secondary, tertiary and/or quaternary amine groups that may either form part of the main polymer chain or may be borne by a side substituent directly connected thereto.
Preferably, the cationic polymers according to the invention do not comprise any anionic groups or any groups that can be ionized into anionic groups.

The cationic polymers that may be used preferably have a weight-average molar mass (Mw) of between 500 and 5×106 approximately and preferably between 103 and 3×106 approximately.
Among the cationic polymers, mention may be made more particularly of: (1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides and including at least one of the units having the following formulae:

in which formulae:
- R3, which may be identical or different, denote a hydrogen atom or a CH3
radical;
- A, which may be identical or different, represent a linear or branched
divalent alkyl group of 1 to 6 carbon atoms, preferably 2 or 3 carbon atoms, or a
hydroxyalkyl group of 1 to 4 carbon atoms;
- R4, R5 and R6, which may be identical or different, represent an alkyl group containing from 1 to 18 carbon atoms or a benzyl radical, and preferably an alkyl group containing from 1 to 6 carbon atoms;
- R1 and R2, which may be identical or different, represent a hydrogen atom or an alkyl group containing from 1 to 6 carbon atoms, preferably methyl or ethyl; and

- X denotes an anion derived from a mineral or organic acid, such as a
methosulfate anion or a halide such as chloride or bromide.
The copolymers of the family (1) may also contain one or more units deriving from comonomers which may be chosen from the family of acrylamides, methacrylamides, diacetone acrylamides, acrylamides and methacrylamides substituted on the nitrogen with lower alkyls (C1-C4), acrylic acids or methacrylic acids or esters thereof, vinyllactams such as vinylpyrrolidone or vinylcaprolactam, and vinyl esters.
Among these copolymers of family (1), mention may be made of:
- copolymers of acrylamide and of dimethylaminoethyl methacrylate
quaternized with dimethyl sulfate or with a dimethyl halide, such as the product sold
under the name Hercofloc by the company Hercules,
- copolymers of acrylamide and of methacryloyloxyethyltrimethylammonium
chloride, such as the products sold under the name Bina Quat P 100 by the company
Ciba Geigy,
- the copolymer of acrylamide and of
methacryloyloxyethyltrimethylammonium methosulfate, such as the product sold
under the name Reten by the company Hercules,
- quaternized or non-quaternized vinylpyrrolidone/dialkylaminoalkyl acrylate
or methacrylate copolymers, such as the products sold under the name Gafquat by the
company ISP, for instance Gafquat 734 or Gafquat 755, or alternatively the products
known as Copolymer 845, 958 and 937. These polymers are described in detail in
French patents 2 077 143 and 2 393 573,
- dimethylaminoethyl methacrylate/vinylcaprolactam/vinylpyrrolidone
terpolymers, such as the product sold under the name Gaffix VC 713 by the company
ISP,
- vinylpyrrolidone/methacrylamidopropyldimethylamine copolymers, such as
the products sold under the name Styleze CC 10 by ISP;
- quaternized vinylpyrrolidone/dimethylaminopropylmethacrylamide
copolymers such as the product sold under the name Gafquat HS 100 by the company
ISP;
- polymers, preferably crosslinked polymers, of methacryloyloxy(C1-
C4)alkyltri(C1-C4)alkylammonium salts, such as the polymers obtained by
homopolymerization of dimethylaminoethyl methacrylate quaternized with methyl
chloride, or by copolymerization of acrylamide with dimethylaminoethyl methacrylate

quaternized with methyl chloride, the homo- or copolymerization being followed by
crosslinking with an olefinically unsaturated compound, in particular
methylenebisacrylamide. Use may be made more particularly of a crosslinked
acrylamide/methacryloyloxyethyltrimethylammonium chloride copolymer (20/80 by
weight) in the form of a dispersion comprising 50% by weight of said copolymer in
mineral oil. This dispersion is sold under the name Salcare® SC 92 by the company
Ciba. Use may also be made of a crosslinked
methacryloyloxyethyltrimethylammonium chloride homopolymer comprising
approximately 50% by weight of the homopolymer in mineral oil or in a liquid ester. These dispersions are sold under the names Salcare® SC 95 and Salcare® SC 96 by the company Ciba.
(2) polymers formed from piperazinyl units and divalent alkylene or
hydroxyalkylene radicals containing linear or branched chains, optionally interrupted
with oxygen, sulfur or nitrogen atoms or with aromatic or heterocyclic rings, and also
the oxidation and/or quaternization products of these polymers.
(3) water-soluble polyaminoamides prepared in particular by
polycondensation of an acidic compound with a polyamine; these polyaminoamides
can be crosslinked with an epihalohydrin, a diepoxide, a dianhydride, an unsaturated
dianhydride, a bis-unsaturated derivative, a bis-halohydrin, a bis-azetidinium, a bis-
haloacyldiamine, a bis-alkyl halide or alternatively with an oligomer resulting from the
reaction of a difunctional compound which is reactive with a bis-halohydrin, a bis-
azetidinium, a bis-haloacyldiamine, a bis-alkyl halide, an epihalohydrin, a diepoxide
or a bis-unsaturated derivative; the crosslinking agent being used in proportions
ranging from 0.025 to 0.35 mol per amine group of the polyaminoamide; these
polyaminoamides can be alkylated or, if they include one or more tertiary amine
functions, they can be quaternized;
(4) polyamino amide derivatives resulting from the condensation of
polyalkylene polyamines with polycarboxylic acids followed by alkylation with
difunctional agents. Mention may be made, for example, of adipic
acid/dialkylaminohydroxyalkyldialkylenetriamine polymers in which the alkyl radical
includes from 1 to 4 carbon atoms and preferably denotes methyl, ethyl or propyl.
Among these derivatives, mention may be made more particularly of the adipic
acid/dimethylaminohydroxypropyl/diethylenetriamine polymers sold under the name
Cartaretine F, F4 or F8 by the company Sandoz.

(5) polymers obtained by reacting a polyalkylene polyamine including two primary amine groups and at least one secondary amine group with a dicarboxylic acid chosen from diglycolic acid and saturated aliphatic dicarboxylic acids containing from 3 to 8 carbon atoms; the mole ratio between the polyalkylene polyamine and the dicarboxylic acid preferably being between 0.8:1 and 1.4:1; the resulting polyaminoamide being reacted with epichlorohydrin in a mole ratio of epichlorohydrin relative to the secondary amine group of the polyaminoamide preferably of between 0.5:1 and 1.8:1. Polymers of this type are sold in particular under the name Hercosett 57 by the company Hercules Inc. or else under the name PD 170 or Delsette 101 by the company Hercules in the case of the adipic acid/epoxypropyl/diethylenetriamine copolymer.
(6) cyclopolymers of alkyldiallylamine or of dialkyldiallylammonium, such as homopolymers or copolymers including, as main constituent of the chain, units corresponding to formula (VI) or (VII):

in which formulae (VI) and (VII):
- k and t are equal to 0 or 1, the sum k + t being equal to 1;
- R12 denotes a hydrogen atom or a methyl radical;
- R10 and R11, independently of each other, denote an alkyl group containing from 1 to 6 carbon atoms, a hydroxyalkyl group in which the alkyl group contains 1 to 5 carbon atoms, a C1 to C4 amidoalkyl group; or alternatively R10 and R11 may denote, together with the nitrogen atom to which they are attached, heterocyclic groups such as piperidinyl or morpholinyl; R10 and R11, independently of each other, preferably denote an alkyl group containing from 1 to 4 carbon atoms; and
- Y- is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate or phosphate.
Mention may be made more particularly of the dimethyldiallylammonium salt (for example chloride) homopolymer (INCI name : POLYQUATERNIUM 6) sold under the name Merquat 100 by the company Nalco (and homologues thereof of low

weight-average molar masses) and the copolymers of diallyldimethylammonium salts (for example chloride) and of acrylamide (INCI name POLYQUATERNIUM 7), notably sold under the names Merquat 550 and Merquat 7SPR.
(7) quaternary diammonium polymers comprising repeating units of formula:

in which formula (VIII):
- R13, R14, R15 and R16, which may be identical or different, represent aliphatic, alicyclic or arylaliphatic radicals containing from 1 to 20 carbon atoms or lower hydroxyalkylaliphatic radicals, or alternatively R13, R14, R15 and R16, together or separately, constitute, with the nitrogen atoms to which they are attached, heterocycles optionally comprising a second non-nitrogen heteroatom, or alternatively R13, R14, R15 and R16 represent a linear or branched C1 to C6 alkyl radical substituted with a nitrile, ester, acyl or amide group or a group -CO-O-R17-D or -CO-NH-R17-D where R17 is an alkylene and D is a quaternary ammonium group;
- A1 and B1 represent divalent polymethylene groups comprising from 2 to 20 carbon atoms which may be linear or branched, and saturated or unsaturated, and which may contain, linked to or inserted in the main chain, one or more aromatic rings, or one or more oxygen or sulfur atoms or sulfoxide, sulfone, disulfide, amino, alkylamino, hydroxyl, quaternary ammonium, ureido, amide or ester groups; and
- X- denotes an anion derived from a mineral or organic acid;
it being understood that A1, R13 and R15 can form, with the two nitrogen atoms to which they are attached, a piperazine ring;
in addition, if A1 denotes a linear or branched, saturated or unsaturated alkylene or hydroxyalkylene radical, B1 can also denote a group (CH2)nCO-D-OC-(CH2)n- in which D denotes:
a) a glycol residue of formula -O-Z-O-, in which Z denotes a linear or branched hydrocarbon-based radical or a group corresponding to one of the following formulae: -(CH2-CH2-O)x-CH2-CH2- and -[CH2CH(CH3)-O]y-CH2-CH(CH3)-, where x and y denote an integer from 1 to 4, representing a defined and unique degree of polymerization or any number from 1 to 4 representing an average degree of polymerization;
b) a bis-secondary diamine residue, such as a piperazine derivative;

c) a bis-primary diamine residue of formula: -NH-Y-NH-, where Y denotes a linear or branched hydrocarbon-based radical, or alternatively the divalent radical -CH2-CH2-S-S-CH2-CH2-; or
d) a ureylene group of formula: -NH-CO-NH-.
Preferably, X- is an anion, such as chloride or bromide. These polymers have a number-average molar mass (Mn) generally of between 1000 and 100 000.
Mention may be made more particularly of polymers consisting of repeating units corresponding to the formula:

in which formula (IX) R1, R2, R3 and R4, which may be identical or different, denote an alkyl or hydroxyalkyl radical containing from 1 to 4 carbon atoms approximately, n and p are integers ranging from 2 to 20 approximately, and X- is an anion derived from a mineral or organic acid.
A compound of formula (IX) that is particularly preferred is the one for which R1, R2, R3 and R4 represent a methyl radical and n = 3, p = 6 and X = Cl, which is known as Hexadimethrine chloride according to the INCI (CTFA) nomenclature.
(8) polyquaternary ammonium polymers comprising units of formula (X):

in which formula (X):
- R18, R19, R20 and R21, which may be identical or different, represent a
hydrogen atom or a methyl, ethyl, propyl, β-hydroxyethyl, β-hydroxypropyl
or -CH2CH2(OCH2CH2)pOH radical, where p is equal to 0 or to an integer of between
1 and 6, with the proviso that R18, R19, R20 and R21 do not simultaneously represent a
hydrogen atom,
- r and s, which may be identical or different, are integers between 1 and 6,
- q is equal to 0 or to an integer between 1 and 34,
- X- denotes an anion, such as a halide, and
- A denotes a dihalide radical or preferably represents -CH2-CH2-O-CH2-
CH2-.

Examples that may be mentioned include the products Mirapol® A 15, Mirapol® AD1, Mirapol® AZ1 and Mirapol® 175 sold by the company Miranol.
(9) quaternary polymers of vinylpyrrolidone and of vinylimidazole, for
instance the products sold under the names Luviquat® FC 905, FC 550 and FC 370 by
the company BASF.
(10) polyamines such as Polyquart® H sold by Cognis, which is referenced under the name Polyethylene Glycol (15) Tallow Polyamine in the CTFA dictionary.
(11) polymers including in their structure:
(a) one or more units corresponding to formula (A) below:

(b) optionally one or more units corresponding to formula (B) below:

In other words, these polymers may be notably chosen from homopolymers or copolymers including one or more units derived from vinylamine and optionally one or more units derived from vinylformamide.
Preferably, these cationic polymers are chosen from polymers including, in their structure, from 5 mol% to 100 mol% of units corresponding to formula (A) and from 0 to 95 mol% of units corresponding to formula (B), preferentially from 10 mol% to 100 mol% of units corresponding to formula (A) and from 0 to 90 mol% of units corresponding to formula (B).
These polymers may be obtained, for example, by partial hydrolysis of polyvinylformamide. This hydrolysis may take place in acidic or basic medium.
The weight-average molecular mass of said polymer, measured by light scattering, may range from 1000 to 3 000 000 g/mol, preferably from 10 000 to 1 000 000 and more particularly from 100 000 to 500 000 g/mol.
The cationic charge density of these polymers may range from 2 meq/g to 20 meq/g, preferably from 2.5 to 15 meq/g and more particularly from 3.5 to 10 meq/g.
The polymers including units of formula (A) and optionally units of formula (B) are notably sold under the name Lupamin by the company BASF, for instance, in a non-limiting manner, the products sold under the names Lupamin 9095, Lupamin 5095, Lupamin 1095, Lupamin 9030 (or Luviquat 9030) and Lupamin 9010.

Preferably, the additional cationic polymer(s) are chosen from cyclopolymers of alkyldiallylamine or of dialkyldiallylammonium (family (6)) and mixtures thereof, more preferentially from copolymers of diallyldimethylammonium salts (for example chloride) and of acrylamide, and mixtures thereof.
The total content of the additional cationic polymer(s), when present in the composition according to the invention, is preferably greater than or equal to 0.05% by weight, more preferentially ranges from 0.05% to 5% by weight, better still from 0.07 % to 2% by weight, or even from 0.08% to 1.5% by weight, relative to the total weight of the composition.
Additives
The composition according to the present invention may further comprise one or more additive(s) other than the compounds of the invention.
As additives that may be used in accordance with the invention, mention may be made of nonionic and cationic surfactants, amphoteric, anionic or non-ionic polymers, antidandruff agents, anti-seborrhoea agents, agents for preventing hair loss and/or for promoting hair regrowth, vitamins and provitamins including tocopherol, sunscreens, mineral or organic pigments, sequestrants, plasticizers, solubilizers, mineral or organic thickeners, especially polymeric thickeners, opacifiers or nacreous agents, antioxidants, hydroxy acids, fragrances and preserving agents.
Needless to say, a person skilled in the art will take care to select this or these optional additional compound(s) such that the advantageous properties intrinsically associated with the composition according to the invention are not, or are not substantially, adversely affected by the envisaged addition(s).
The above additives may generally be present in an amount, for each of them, of between 0.001% and 20% by weight, relative to the total weight of the composition.
The composition according to the invention is a cosmetic composition, preferably a hair care composition such as a hair composition for washing and/or conditioning hair.

Another object of the present invention relates to a cosmetic process for cleansing and/or conditioning fibres, in particular human keratin fibres such as hair, which consists in applying to said keratin fibres a composition as previously defined, and after an optional leave-on time, optionally removing it by rinsing.
After an optional leave-on time, the composition may preferably be removed by rinsing with water. The fibres may then be dried or left to dry.
Generally, the leave-on time of the composition on the keratin fibres may range from 10 seconds to 5 minutes.
The composition may be applied to wet or dry keratin fibres, preferably wet keratin fibres.
In the present invention, the term “keratin fibres” denotes human keratin fibres, and in particular human hair.
Finally, the present invention relates to the use of a composition as described above for washing and/or conditioning keratin fibres, preferably the hair.
The example that follows serves to illustrate the invention without, however, being limiting in nature.
Examples
In the example that follow and unless otherwise indicated, the amounts are
given as mass percentages of active material (am) relative to the total weight of the composition.
The following compositions A1 and A2 according to the invention and the comparative composition B were prepared from the ingredients indicated in the table below (wt. % of active material).

Composition Composition Compositio
A1 (invention) A2 (invention) n B (comparativ e)
Sodium C14-16 olefin 7,2 8 7,2
sulfonate

Cocamidopropyl 1.7 1.7 1.7
betaine
Sodium lauroyl 1 1 1
sarcosinate
Glycerin 2 2 2
Dimethicone (and) 2% of 3% of -
Amodimethicone emulsion (i.e. emulsion (i.e.
(and) Trideceth-10 0,8% AM 1.2% AM
(and) PEG-100 dimethicone + dimethicone +
stearate (and) 0,2% AM 0,3% AM
Steareth-6 (and) amodimethico amodimethico
Trideceth-3 ne) ne)
Amodimethicone - - 1
Cocamide MEA 1.8 1.8 1.8
Propylene glycol 1.8 1.8 1.8
(and) PEG-55
propylene glycol
oleate
Glycol distearate 1.5 1.5 1.5
Polyquaternium-7 0.1 0.1 0.1
(PQ-7)
Coco-betaine 0,3 0,3 0,3
Hexylene glycol 0.5 0.5 0.5
Sodium chloride 0,8 0,4 0,8
Carbomer 0.36 0.36 0.36
Guar 0.2 0.2 0.2
hydroxypropyltrimon
ium chloride
preservatives qs qs qs
Water Qsp 100 Qsp 100 Qsp 100
The compositions according to the invention could be used as shampoos; they give an abundant foam, that could be rinsed easily; on wet hair, the detangling is good and the hair are tactile smooth, with a coated and supple feel.

When dried, hair have a good volume and a coated feel; the detangling, smoothness, shine parameters are good.
The silicone and PQ-7 depositions of compositions A1 and B above have been evaluated on locks of natural Indian hair.
The evaluation has been performed with the WDXRF Optim’x Thermofisher (Wavelength Dispersion) XRF system. The principle is based on radiation emissions characteristic of the chemical element, produced by the impact of high energy photons dispensed by an X-ray tube.
Operational parameters:
- Gas Flow Helium - Argon/Methane (90/10)
- X-ray tube (Rh), Crystal PET and detector FPC
- Tension 25kv– 2mA
- 3 measurements / lock = 60s/ measurement
- Minimum sample size 250mg (2mm pieces)
Protocol: 0.4g of composition was applied for 1g of hair lock. The shampoo was messaged 6 times using fingers from root to tip, to generate foam. The lock was then rinsed under running water (25°C) 10 second. The lock was then dried at 45°C in an oven.
The silicone depositions of the compositions A1 and B onto keratin fibres have been measured after 5 applications.
The results obtained are detailed in the table below.

Average Silicone and PQ-7 deposition
(ppm)

Silicones PQ7 Total
deposition (Si + PQ7)
Composition A1 436 ± 192 ± 7.02 628
(invention) 16.17
Composition B 257 ± 7.77 182 ± 439
(comparative) 10.26

Composition A1 according to the invention (i.e. comprising a silicone emulsion) shows higher silicone deposition and higher PQ7 deposition, that comparative composition B (comprising only amodimethicone).

I/We Claim:
1. Cosmetic composition comprising:
a) an oil-in-water emulsion having D50 particle size of less than 350 nm and
comprising:
- a silicone mixture comprising (i) a trialkylsilyl terminated dialkylpolysiloxane having a viscosity of from 40,000 to less than 100,000 mPa.s at 25°C and (ii) an amino silicone having a viscosity of from 1,000 to 15,000 mPa.s at 25°C and an amine value of from 2 to 10 mg of KOH per gram of amino silicone,
- a mixture of emulsifiers comprising one or more nonionic emulsifiers, wherein the mixture of emulsifiers has a HLB value of from 10 to 16, and
- water;

b) one or more cationic polysaccharide(s),
c) one or more α-olefin sulfonate anionic surfactants, and
d) one or more amphoteric or zwitterionic surfactants.
2. Composition according to claim 1, wherein the trialkylsilyl terminated
dialkylpolysiloxane (i) is of formula (IX):
R’3SiO(R’2SiO)pSiR’3
wherein
- R’, same or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, and
- p is an integer of from 500 to 2,000, preferably of from 1,000 to 2,000; and preferably is a trimethylsilyl terminated polydimethylsiloxane.
. Composition according to any one of the preceding claims, wherein the amino silicone (ii) is of formula (X): XR2Si(OSiAR)n(OSiR2)mOSiR2X wherein:
- R, same or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms,
- X, same or different, is R or a hydroxyl (OH) or a C1-C6-alkoxy group; preferably X is R,
- A is an amino radical of the formula -R1-[NR2-R3-]xNR22, or the protonated amino forms of said amino radical, wherein R1 is a C1-C6-alkylene radical, preferably a

radical of the formula -CH2CH2CH2- or -CH2CH(CH3)CH2-, R2, same or different, is a hydrogen atom or a C1-C4-alkyl radical, preferably a hydrogen atom, R3 is a C1-C6-alkylene radical, preferably a radical of the formula -CH2CH2-, and x is 0 or 1; and
- m+n is an integer from 50 to about 1000, preferably from 50 to 600;
preferably A is an amino radical of the formula -R1-[NR2-R3-]xNR22, or the protonated amino forms of said amino radical, wherein R1 is -CH2CH2CH2- or -CH2CH(CH3)CH2-, R2 are hydrogen atoms, R3 is -CH2CH2-, and x is 1.
4. Composition according to any one of the preceding claims, wherein said
mixture of emulsifiers comprises one or more nonionic emulsifiers chosen from:
(i) polyoxyalkylene alkyl ethers, especially (poly)ethoxylated fatty alcohols of formula: R3-(OCH2CH2)cOH with:
- R3 representing a linear or branched C8-C40 alkyl or alkenyl group, preferably C8-C30 alkyl or alkenyl group, optionally substituted with one or more hydroxyl groups, and
- c being an integer between 1 and 200 inclusive, preferentially between 2 and 150; and more particularly fatty alcohols comprising from 8 to 22 carbon atoms, oxyethylenated with 1 to 30 mol of ethylene oxide (1 to 30 OE);
(ii) polyoxyalkylene (C8-C32)alkylphenyl ethers;
(iii) polyoxyalkylene sorbitan (C8-C32) fatty acid esters, especially polyethoxylated
fatty acid esters of sorbitan preferably containing from 2 to 40 ethylene oxide units,
most preferably from 2 to 20 ethylene oxide units; preferably polyoxyethylenated
sorbitan (C10-C24) fatty acid esters preferably containing from 2 to 40 ethylene oxide
units, most preferably from 2 to 20 ethylene oxide units; and
(iv) polyoxyethylenated (C8-C32) fatty acid esters containing for example from 2 to
150 mol of ethylene oxide; preferably polyoxyethylenated (C10-C24) fatty acid esters
containing for example from 2 to 150 mol of ethylene oxide.
5. Composition according to any one of the preceding claims, wherein the
total amount of oil-in-water emulsion a) ranges from 0.1% to 20% by weight,
preferably from 0.3 % to 15% by weight, preferentially from 0.5% to 12% by weight,
more preferentially from 1 to 10%, even more preferentially from 1.5 to 5% by weight,
relative to the total weight of the composition.

6. Composition according to any one of the preceding claims, wherein the cationic polysaccharide(s) b) is(are) chosen from cationic celluloses, cationic galactomannan gums, and mixtures thereof; preferably from cellulose ether derivatives comprising quaternary ammonium groups, guar gums comprising cationic trialkylammonium groups, and mixtures thereof; preferentially from cationic galactomannan gums, better from guar gums comprising cationic trialkylammonium groups and mixtures thereof; better the cationic polysaccharide is guar hydroxypropyl ammonium chloride.
7. Composition according to any one of the preceding claims, wherein the total amount of cationic polysaccharide(s) b) ranges from 0.01 to 5% by weight, preferentially from 0.015 to 4% by weight, more preferentially from 0.02 to 3% by weight, better from 0.05 to 2% by weight, and even better from 0.1 to 1% by weight, relative to the total weight of the composition.
8. Composition according to any one of the preceding claims, wherein the one or more α-olefin sulfonate anionic surfactants c) are chosen from C6-C24 and notably C12-C20 α-olefin sulfonates, and also salts thereof and mixtures thereof.

9. Composition according to any one of the preceding claims, wherein the total amount of α-olefin sulfonate anionic surfactants c) ranges from 0.1 to 25% by weight, preferably from 1 to 20% by weight, more preferably from 3 to 15% by weight and preferentially from 5 to 10% by weight, relative to the total weight of the composition.
10. Composition according to any one of the preceding claims, wherein the amphoteric or zwitterionic surfactants d) is(are) chosen from (C8-C20)alkylbetaines, such as cocoyl betaine (C8-C20)alkylamido(C3-C8)alkylbetaines, such as cocamidopropylbetaine, (C8-C20)alkylamphoacetates, (C8-C20)alkylamphodiacetates and mixtures thereof; and preferably (C8-C20)alkylbetaines, (C8-C20)alkylamido(C3-C8)alkylbetaines and mixtures thereof; preferentially from (C8-C20)alkylamido(C3-C8)alkylbetaines and mixtures thereof.
11. Composition according to any one of the preceding claims, wherein the amphoteric or zwitterionic surfactants d) are chosen from a mixture of (C8-C20)alkylbetaines and of from(C8-C20)alkylamido(C3-C8)alkylbetaines.

12. Composition according to any one of the preceding claims, wherein the total amount of the amphoteric or zwitterionic surfactants d) ranges from 0.1 to 15% by weight, preferably from 0.5 to 10% by weight and preferentially from 1 to 5% by weight relative to the total weight of the composition.
13. Composition according to any one of the preceding claims, wherein said composition is free of sulfate, in particular free of sulfate anionic surfactants.
14. Process for treating keratin fibres, preferably for cleansing keratin fibres, comprising the application onto the keratin fibres of a composition according to any one of the preceding claims.
15. Use of the composition according to any of Claims 1 to 13 for washing and/or conditioning keratin fibres, preferably the hair.