WO2023141803A1

WO2023141803A1 - Composition suitable for high content of oil

Info

Publication number: WO2023141803A1
Application number: PCT/CN2022/073947
Authority: WO
Inventors: Yu Huang; Lingling Sun; Julien Laboureau
Original assignee: L'oreal
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2023-08-03
Also published as: FR3132017A1

Abstract

An aqueous composition comprises the components of: A) a cosmetically acceptable acid in an amount of at least 3% by weight; B) at least two thickeners; and C) an oil in an amount of at least 10% by weight.

Description

Composition suitable for high content of oil

Technical field

The present invention relates to a composition suitable for high content of oil.

Background

Skin is present widely on surface of human bodies. Many people have for a long time sought to fresh the body surface, so as to feel comfortable in daily life and work. It has always been an ultimate target of the cosmetic filed to deliver products with skin benefits such as hydration, moisturizing, anti-aging, whitening, cleansing, slippery feeling and so on.

Acids are widely used in cosmetics. For example, acid can be functional on unlock the SC cell desmosomes which is a key part for cells connection. Specifically, acid helps to remove the connection structure between the keratin in the stratum corneum, and shows a gentle melting effect of the keratin. Amongst others, alpha Hydroxyl Acid (AHA) is a representative exfoliating ingredient. However, it is also known that AHAs, e.g., glycolic acid, may still be irritative for the skin. Meanwhile, as useful compounds for chelating agents, preservatives, pH-adjusting agents, and the like, acids are widely used in cosmetic products.

Oils are also incorporated into cosmetic products for various purposes. In particular, for some applications, it is desirable to incorporate oils at a high content. However, especially when acid is present, oil is generally incorporate at a relatively low content.

There is thus still needed in the art to develop new compositions suitable for not only low content of oil, but also high content of oil, especially for product comprising relatively high content of acid (s) .

Summary of the invention

By deep study, the inventors have surprisingly discovered that by using specifically combination of at least two thickeners, especially at least one hydrophobically modified ammonium acryloyldimethyltaurate acid or salt with a polysaccharide, either low or high content of oil can be incorporated into a composition with high content of acid (s) .

Thus, one subject of the present invention is thus a composition with high content of oil, comprising the components of:

A) an acid;

B) at least two thickeners, comprising:

B-1) an AMPS copolymer, preferably comprising a hydrophobic modification moiety, more preferably a modification moiety modified with a C16～C22 fatty chain; and

B-2) at least one polysaccharide, preferably with a molecular weight of more than 500,000; and

C) an oil, preferably selected from the group consisting of hydrocarbon-based oils, silicone oils or fluorine-based oils.

The composition according to the present invention is particularly useful for products where a high content of oil is desirable, in particular in a skin care product. Accordingly, the composition of the present invention can be particularly a leave-on product in various form.

Embodiments of the invention

Throughout the description, including the claims, the term "comprising a" should be understood as being synonymous with "comprising at least one" , unless otherwise mentioned. Moreover, the expression "at least one" used in the present description is equivalent to the expression "one or more" .

Throughout the description, including the claims, an embodiment defined with “comprising” or the like should be understood to encompass a preferable embodiment defined with “consisting substantially of” and a preferable embodiment defined with “consisting of” .

Other than in the operating examples, or where otherwise indicated, all numbers expressing quantities of components and/or reaction conditions are to be understood as being modified in all instances by the term "about" , with conventionally known meaning in the art, e.g., within 10%of the indicated number (e.g. "about 10%" means 9%-11%and "about 2%" means 1.8%-2.2%) .

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

The present invention is directed to an aqueous composition with high content of oil, comprising the components of:

A) an acid;

B) at least two thickeners, comprising:

The present invention thus provides use of combination of component B) for enhancing the compatibility of high content of oil with high content of acid. In particular, the combination of component B) can improve the stability of a system containing both high content of oil and high content of acid. For example, in the form of emulsion, the system can be kept stable without demulsification or layering.

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

Component A) , cosmetically acceptable acid

The composition of the present invention comprises at least one cosmetically acceptable acid as component A) .

As stated above, acids are widely used in cosmetic products, including use as chelating agents, preservatives, pH-adjusting agents, active components, and the like. Accordingly, acids useful according to the present invention may comprise any cosmetically acceptable acid to be used in a high amount, e.g., 3wt%or more, together with a high amount, e.g., 10wt%or more, of oil.

The cosmetically acceptable acid may thus comprise cosmetically acceptable inorganic acid and cosmetically acceptable organic acid.

Examples of cosmetically acceptable acids useful according to the present invention comprise phosphoric acid, succinic acid, citric acid, salicylic acid, glutamic acid, maleic acid, aspartic acid, boric acid, lactic acid, and mixtures thereof.

According to the present invention, the cosmetically acceptable acid may be particularly a hydroxyl-containing acid, which can be particularly an α-hydroxyl acid. The term “α-hydroxyl acid” is understood to mean, according to the present invention, a carboxylic acid having at least one hydroxyl functional group occupying an α-position on said acid (carbon adjacent to a carboxylic acid functional group) . This acid is preferably present in the final composition in the form of the free acid and.

The α-hydroxyl acids (α-hydroxyl acid) include, for example, citric acid, lactic acid, methyllactic acid, glucuronic acid, glycolic acid, pyruvic acid, 2-hydroxybutanoic acid, 2-hydroxypentanoic acid, 2-hydroxyhexanoic acid, 2-hydroxyheptanoic acid, 2-hydroxyoctanoic acid, 2-hydroxynonanoic acid, 2-hydroxydecanoic acid, 2-hydroxyundecanoic acid, 2-hydroxydodecanoic acid, 2-hydroxytetradecanoic acid, 2-hydroxyhexadecanoic acid, 2-hydroxyoctadecanoic acid, 2-hydroxytetracosanoic acid, 2-hydroxyeicosanoic acid, mandelic acid, phenyllactic acid, gluconic acid, galacturonic acid, aleuritic acid, ribonic acid, tartronic acid, tartaric acid, malic acid, fumaric acid and their mixtures. It is also possible to use mixtures of these various acids.

According to an embodiment of the present invention, the α-hydroxyl acid is preferably a lower acid having 2-12 carbon atoms, or 2-8 carbon atoms, or 2-6 carbon atoms.

According to an embodiment of the present invention, the α-hydroxyl acid is preferably a mono-carboxylic acid.

Examples of the hydroxyl-containing acid may comprise glycolic acid, lactic acid, malic acid, citric acid; gluconic acid, lactobionic acid, tartaric acid and salicylic acid.

According to a preferable embodiment of the present invention, the α-hydroxyl acid is a lower mono-carboxylic acid having 2-6 carbon atoms, such as lactic acid, gluconic acid, or glycolic acid.

According to an embodiment of the present invention, the cosmetically acceptable acid

The component A) may be present in the composition according to the present invention in an amount ranging from 0.1 to 30%by weight, from 1 to 30%by weight, from 3 to 30%by weight, or from 5 to 20%by weight, relative to the total weight of the composition.

Component B) , thickener

For cosmetic products, in particular those in a leave-on form, it is usually preferable that the product can be distributed uniformly on skin, scalp, or hair. Accordingly, thickeners are generally used. According to the present invention, at least two thickeners can be preferably incorporated into the composition, so as to adjust the viscosity of the product obtained.

Component B-1) , AMPS copolymer

The composition according to the present invention may comprise component B-1) , an AMPS copolymer, for use as one of the thickeners.

The useful hydrophobic AMPS copolymers can be crosslinked or non-crosslinked copolymers comprising at least the acrylamido-2-methylpropanesulfonic acid monomer, optionally in a form partially or totally neutralized with ammonia or with a mineral base other than ammonia, such as sodium hydroxide or potassium hydroxide. Representative AMPS polymers are those commercially available from THE LUBRIZOL CORPORATION under the name

The MPS copolymers are preferably totally neutralized or virtually totally neutralized, i.e. at least 90%neutralized.

According to an embodiment of the present invention, the AMPS copolymers are preferably crosslinked.

According to an embodiment of the present invention, the AMPS copolymers are preferably in a form partially or totally neutralized with ammonia.

When the polymers are crosslinked, the crosslinking agents may be chosen from the polyolefinically unsaturated compounds commonly used for the crosslinking of polymers obtained by free-radical polymerization.

Examples of crosslinking agents that may be mentioned include divinylbenzene; ethers, such as diallyl ether, dipropylene glycol diallyl ether, polyglycol diallyl ethers, triethylene glycol divinyl ether, trimethylolpropane diallyl ether, allylic ethers of alcohols of the sugar series, or other allylic or vinyl ethers of polyfunctional alcohols, hydroquinone diallyl ether; esters, such as, triallyl cyanurate, diallyl maleate, also allylic esters of phosphoric and/or vinylphosphonic acid derivatives, and especially (meth) acrylate of fatty acids, such as ethylene glycol or tetraethylene glycol di (meth) acrylate, trimethylolpropane triacrylate, allyl (meth) acrylate; amides, such as methylenebisacrylamide, methylenebismethacrylamide, triallylamine, tetraallylethylenediamine, and or mixtures of these compounds.

The degree of crosslinking generally ranges from 0.01 mol%to 10 mol%and more particularly from 0.2 mol%to 2 mol%relative to the polymer.

The AMPS polymer in accordance with the invention is preferably water-soluble or water-dispersible. In this case they are preferably:

- copolymers obtained from AMPS and from one or more hydrophobic ethylenically unsaturated monomers and, if they are crosslinked, one or more crosslinking agents such as those defined above.

The term "water-soluble or water-dispersible" means polymers which, when introduced into an aqueous phase at 25℃, to a mass concentration equal to 1%, make it possible to obtain a macroscopically homogeneous and transparent solution, i.e. a solution that has a maximum light transmittance value, at a wavelength equal to 500 nm, through a sample 1 cm thick, of at least 60%and preferably of at least 70%.

The water-soluble or water-dispersible AMPS copolymers according to the invention contain water-soluble ethylenically unsaturated monomers, hydrophobic monomers or mixtures thereof.

The water-soluble comonomers may be ionic or nonionic.

Among the ionic water-soluble comonomers, examples that may be mentioned include the following compounds and the salts thereof:

- (meth) acrylic acid,

- styrenesulfonic acid,

- vinylsulfonic acid and (meth) allylsulfonic acid,

- vinylphosphonic acid,

- maleic acid,

- itaconic acid,

- crotonic acid,

- the water-soluble vinyl monomers of formula (A) below:

in which:

- R ₁ is chosen from H, -CH ₃, -C ₂H ₅ and-C ₃H ₇

- X ₁ is chosen from:

- alkyl ethers of-OR ₂ type in which R ₂ is a linear or branched, saturated or unsaturated hydrocarbon-based radical containing from 1 to 6 carbon atoms, substituted with at least one sulfonic (-SO ₃-) and/or sulfate (-SO ₄-) and/or phosphate (-PO ₄H ₂-) group.

Among the nonionic water-soluble comonomers, examples that may be mentioned include:

- (meth) acrylamide,

- N-vinylacetamide and N-methyl-N-vinylacetamide,

- N-vinylformamide and N-methyl-N-vinylformamide,

- maleic anhydride,

- vinylamine,

- N-vinyllactams comprising a cyclic alkyl group containing 4 to 9 carbon atoms, such as n-vinylpyrrolidone, N-butyrolactam and N-vinylcaprolactam,

- vinyl alcohol of formula CH ₂=CHOH,

- the water-soluble vinyl monomers of formula (B) below:

in which:

- R ₁₅ is chosen from H, -CH ₃, -C ₂H ₅ and-C ₃H ₇

- X ₂ is chosen from:

- alkyl ethers of-OR ₁₆ type in which R ₁₆ is a linear or branched, saturated or unsaturated hydrocarbon-based radical containing from 1 to 6 carbons, optionally substituted with a halogen atom (iodine, bromine, chlorine or fluorine) ; a hydroxyl group (-OH) ; ether.

Mention is made, for example, of glycidyl (meth) acrylate, hydroxyethyl methacrylate and (meth) acrylates of ethylene glycol, of diethylene glycol or of polyalkylene glycol.

Mention is made, for example, of methyl (meth) acrylate, ethyl (meth) acrylate, hydroxyethyl (meth) acrylate, n-butyl (meth) acrylate, tert-butyl (meth) acrylate, cyclohexyl (meth) acrylate, isobornyl (meth) acrylate, 2-ethylhexyl (meth) acrylate.

The AMPS polymer, preferably water-soluble or water-dispersible, of the invention preferably have a molar mass ranging from 50 000 g/mol to 10 000 000 g/mol, preferably from 80 000 g/mol to 8 000 000 g/mol or from 100 000 g/mol to 7 000 000 g/mol.

Examples of water-soluble or water-dispersible AMPS copolymers in accordance with the invention that may be mentioned include:

- acrylamide/sodium acrylamido-2-methylpropanesulfonate crosslinked copolymers, such as the copolymer used in the commercial product

305 (CTFA name: Polyacrylamide/C ₁₃-C ₁₄ Isoparaffin/Laureth-7) or the copolymer used in the commercial product sold under the trade name

600 (CTFA name: Acrylamide/Sodium Acryloyldimethyltaurate/Isohexadecane/Polysorbate-80) by the company SEPPIC;

- copolymers of AMPS and of vinylpyrrolidone or of vinylformamide, such as the copolymer used in the commercial product sold under the name

AVC by the company Clariant (CTFA name: Ammonium Acryloyldimethyltaurate/VP Copolymer) but neutralized with sodium hydroxide or potassium hydroxide;

- copolymers of AMPS and of sodium acrylate, for instance AMPS/sodium acrylate copolymer such as the copolymer used in the commercial product sold under the name

EG by the company SEPPIC (CTFA name: Acrylamide/Sodium Acryloyldimethyltaurate/Isohexadecane/Polysorbate-80) ;

- copolymers of AMPS and of hydroxyethyl acrylate, for instance AMPS/hydroxyethyl acrylate copolymer, such as the copolymer used in the commercial product sold under the name

NS by the company SEPPIC (CTFA name: Hydroxyethyl acrylate/Sodium Acryloyldimethyltaurate copolymer (and) Squalane (and) Polysorbate-60) ;

- ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer.

The preferred polymers are more particularly ammonium polyacryloyldimethyl taurate; and AMPS/hydroxyethyl acrylate copolymers, such as the copolymer used in the commercial product sold under the name Simulgel NS, or ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer.

According to an embodiment of the present invention, a hydrophobic AMPS copolymer is preferably used as an example for component B-1) . For the purpose of invention, a “hydrophobic AMPS copolymer” means an AMPS copolymer obtained from hydrophobic modification, and thus is exchangeable with the term “hydrophobically modified AMPS copolymer” . Accordingly, a hydrophobic AMPS copolymer of the invention comprises a hydrophobic modification moiety, preferably a modification moiety modified with a C16～C22 fatty chain.

According to an embodiment of the present invention, the hydrophobic AMPS copolymers are preferably copolymers of hydrophobically modified ammonium acryloyldimethyltaurate acid or salt.

For example, crosslinked AMPS copolymer is

HMS, ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer; non-crosslinked AMPS copolymer is

SNC, ammonium acryloyldimethyltaurate/steareth-8 methacrylate copolymer.

The component B-1) of AMPS copolymer in accordance with the invention are generally present in an amount ranging from 0.01%to 10%by weight, preferably 0.1%to 5%by weight, or particularly from 0.3%to 3%by weight, or preferably from 0.5%to 2%by weight relative to the total weight of the composition.

Component B-2) , polysaccharide

The composition according to the invention can comprise component B-2) , at least one polysaccharide, for use as one of the thickeners, which is preferably of biotechnological origin.

In particular, these polysaccharides may, where appropriate, be chemically modified to promote its hydrophilic valency, as is the case for cellulose derivatives, in particular hydroxyalkylcelluloses (e.g.: hydroxyethylcellulose) .

As examples of polysaccharides that may be used according to the invention, mention may be made especially of:

a) algal extracts such as alginates, carrageenans and agar-agar, and mixtures thereof. Examples of carrageenans that may be mentioned include Satiagum

and

from the company Degussa; an alginate that may be mentioned is the sodium alginate sold under the name

by the company ISP;

b) gums, such as xanthan gum, gellan gum, guar gum and nonionic derivatives thereof (e.g., hydroxypropyl guar) , gum arabic, konjac gum or mannan gum, gum tragacanth, ghatti gum, karaya gum, locust bean gum, agar gum, scleroglucan gums and mixtures thereof; examples that may be mentioned include the xanthan gum sold under the name

CG-T by the company CP Kelco, gellan gum sold under the name

CG LA by the company CP Kelco, guar gum sold under the name Jaguar HP

by the company Rhodia; mannan gum and konjac

(1%glucomannan) sold by the company GfN;

c) starches, which are preferably modified, such as those derived, for example, from cereals such as wheat, corn or rice, from legumes such as white lentil, from tubers such as potato or cassava, tapioca starches; dextrins, such as corn dextrins; Amidon de

from the company Roquette; potato feculent modified with 2-chloroethylaminodipropionic acid neutralized with sodium hydroxide, sold under the name Structure

by the company National Starch; native tapioca starch powder sold under the name Tapioca

by the company National Starch;

d) dextrins, such as dextrin extracted from corn under the name

from the company National Starch;

e) celluloses and derivatives thereof, in particular alkyl or hydroxyalkylcelluloses; mention may be made especially of methylcelluloses, hydroxyalkylcelluloses, ethylhydroxyethylcelluloses and carboxymethylcelluloses. Examples that may be mentioned include the hydroxyethylcellulose sold under the name Natrosol ^TM 250 HHR PC by the company Ashland, or under the name Cellosize ^TM QP 4400 H by the company Amerchol (Dow Chemical) , cetylhydroxyethylcelluloses sold under the names Polysurf

and Natrosol Plus

from Aqualon;

f) pectins,

g) chitosan and derivatives thereof,

h) polyholosides comprising at least two saccharides, preferably of natural origin, and especially chosen from:

- aldoses such as

- pentoses: ribose, arabinose, xylose or apiose, for example,

- hexoses: glucose, fucose, mannose or galactose, for example,

- ketoses such as fructose,

- deoxyoses, such as rhamnose, digitoxose, cymarose or oleandrose,

- saccharide derivatives such as uronic acids, for instance mannuronic acid, guluronic acid, galacturonic acid or glycuronic acid, or itols, for instance mannitol or sorbitol.

Mention may be made in particular of the polyholosides comprising fucose, galactose and galacturonic acid units, and for example a linear sequence of α-L-fucose, α-D-galactose and galacturonic acid, for instance the biosaccharide gum-1 sold under the trade name

1000 PP or

1.5P by the company Solabia,

i) anionic polysaccharides, in particular of biotechnological origin, such as anionic polysaccharide bearing as repeating unit a tetrasaccharide composed of L-fucose, D-glucose and glucuronic acid, such as the product bearing the INCI name Biosaccharide Gum-4 sold under the reference Glycofilm 1.5P by the company Solabia,

j) and mixtures thereof.

Preferably, the polysaccharide of the present invention is chosen from:

- gums such as xanthan gum, or gellan gum;

- cellulose and its derivatives, for example hydroxyethylcellulose;

- polyholosides comprising fucose, galactose and galacturonic acid units, for example biosaccharide gum-1.

For the purpose of the invention, it may be particularly advantageous to use a polysaccharide having a molecular weight of more than 500,000. According to an embodiment of the invention, the polysaccharide may have a molecular weight of not more than 40,000,000.

Xanthan

Amongst others, xanthan can be particularly mentioned as an example for component B-2) .

Xanthan is a heteropolysaccharide produced at the industrial scale by the aerobic fermentation of the bacterium Xanthomonas campestris. Its structure consists of a main chain of β (1, 4) -linked β-D-glucoses, similar to cellulose. One glucose molecule in two bears a trisaccharide side chain composed of an α-D-mannose, a β-D-glucuronic acid and a terminal β-D-mannose. The internal mannose residue is generally acetylated on carbon 6. About 30%of the terminal mannose residues bear a pyruvate group linked in chelated form between carbons 4 and 6. The charged pyruvic acids and glucuronic acids are ionizable, and are thus responsible for the anionic nature of xanthan (negative charge down to a pH equal to 1) . The content of pyruvate and acetate residues varies according to the bacterial strain, the fermentation process, the conditions after fermentation and the purification steps. These groups may be neutralized in commercial products with Na ⁺, K ⁺ or Ca ²⁺ ions (Satia company, 1986) . The neutralized form may be converted into the acid form by ion exchange or by dialysis of an acidic solution.

Xanthan gums may have a molecular weight of between 1 000 000 and 50 000 000 and a viscosity of between 0.6 and 1.65 Pa. s for an aqueous composition containing 1%of xanthan gum (measured at 25℃ on a Brookfield viscometer of LVT type at 60 rpm) .

Xanthan gums are represented, for example, by the products sold under the names Rhodicare by the company Rhodia Chimie, under the name Satiaxane ^TM by the company Cargill Texturizing Solutions (for the food, cosmetic and pharmaceutical industries) , under the name Novaxan ^TM by the company ADM, and under the names

and

by the company CP-Kelco.

According to an embodiment, the component B-2) can be present in the composition in an amount ranging from 0.0001%to 5%by weight, preferably from 0.001%to 2%by weight, or from 0.005%to 1%by weight of the polysaccharides, relative to the total weight of the composition.

Component C) , oil

According to the present invention, the composition may comprise at least one oil.

The term “oil” refers to any fatty body in liquid form at room temperature (20-25℃) and atmospheric pressure. These oils may be of animal, plant, mineral or synthetic origin.

The oils may be volatile or non-volatile.

The term "volatile oil" refers to any non-aqueous medium capable of evaporating from the skin or lips, in less than one hour, at room temperature (20-25℃) and atmospheric pressure (760 mmHg) .

More specifically, the volatile oil is a volatile cosmetic oil, liquid at room temperature. More specifically, a volatile oil has an evaporation rate of between 0.01 and 200mg/cm ²/min, inclusive.

The term "non-volatile oil" is intended to mean an oil remaining on the skin or keratin fiber at ambient temperature and atmospheric pressure.

More specifically, a non-volatile oil has an evaporation rate strictly below 0.01 mg/cm ²/min.

To measure this evaporation rate, 15g of oil or a mixture of oils to be tested are introduced into a crystallizer, 7cm in diameter, placed on a scale located in a large 0.3m ³ chamber temperature-controlled at a temperature of25℃, and humidity-controlled with a relative humidity of 50%. The liquid is left to evaporate freely, without stirring, by providing ventilation with a fan (PAPST-MOTOREN, reference 8550 N, rotating at 2700 rpm) positioned vertically above the crystallizer containing the solvent, with the blades directed toward the crystallizer and at a distance of20cm from the base of the crystallizer. The mass of oil remaining in the crystallizer is measured at regular intervals. The evaporation rates are expressed in mg of oil evaporated per surface area unit (cm ²) and per time unit (minute) .

The oils that are suitable for the present invention may be hydrocarbon-based oil, silicone oil or fluorine-based oil.

The term "fluorine oil" , “fluoro oil” or the like refers to an oil including at least one fluorine atom.

The term "hydrocarbon-based oil" refers to an oil containing primarily hydrogen and carbon atoms.

The oils may optionally include oxygen, nitrogen, sulfur and/or phosphorus atoms, for example, in the form of hydroxyl or acid radicals.

Preferably, the composition of the present invention comprises silicone oil (s) .

Specifically, the volatile oils useful according to the present invention may be chosen from hydrocarbon oils having 8 to 16 carbon atoms, and in particular branched C ₈-C ₁₆ alkanes (also called isoparaffins or isoalkanes) , such as isododecane (also called 2, 2, 4, 4, 6-pentamethylheptane) , isodecane, isohexadecane, and, for example, the oils sold under the trade names

or

It is also possible to cite, as a hydrocarbon volatile oil, linear C ₉-C ₁₇ alkanes, such as dodecane (C ₁₂) and tetradecane (C ₁₄) , sold respectively under the names

12-97 and

14-97 (Sasol) , and, as alkanes obtained according to the method described in the international application WO 2007/068371 A1, such as the undecane (C ₁₁) and tridecane (C ₁₃) mixture sold under the name

UT (Cognis) .

The non-volatile oils may, in particular, be chosen from among the non-volatile hydrocarbon oils.

It is possible to cite, as a non-volatile hydrocarbon oil:

- hydrocarbon oils of animal origin, such as perhydrosqualene,

- hydrocarbon oils of plant origin, such as phytostearyl esters, for instance phytostearyl oleate, phytostearyl isostearate and lauroyl/octyldodecyl/phytostearyl glutamate (AJINOMOTO, ELDEW PS203) , diesters such as diisopropyl sebacate, triglycerides constituted of fatty acid esters of glycerol, in particular in which the fatty acids may have chain lengths ranging from C ₄ to C ₃₆, and in particular from C ₁₈ to C ₃₆, it being possible for these oils to be linear or branched, and saturated or unsaturated; these oils may in particular be heptanoic or octanoic triglycerides, shea oil, alfalfa oil, poppy seed oil, pumpkin oil, millet oil, barley oil, quinoa oil, rye oil, candlenut oil, passionflower oil, aloe oil, sweet almond oil, peach kernel oil, groundnut oil, argan oil, avocado oil, baobab oil, barrage oil, broccoli oil, calendula oil, camelina oil, canola oil, carrot oil, safflower oil, hemp oil, rapeseed oil, cotton seed oil, coconut oil, marrow seed oil, wheat germ oil, jojoba oil, lily oil, macadamia oil, corn oil, meadowfoam oil, St. John's Wort oil, monoi oil, hazelnut oil, apricot kernel oil, nut oil, olive oil, evening primrose oil, palm oil, blackcurrant seed oil, kiwi seed oil, grape seed oil, pistachio oil, pumpkin oil, winter squash oil, quinoa oil, musk rose oil, sesame oil, soya oil, sunflower oil, castor oil and watermelon oil, and mixtures thereof, or alternatively caprylic/capric acid triglycerides, for instance those sold by the StEarineries Dubois company or those sold under the names Miglyol

and

by the Dynamit Nobel company,

- linear or branched hydrocarbons of mineral or synthetic origin, such as liquid paraffins and derivatives thereof, petroleum jelly, polydecenes, polybutenes, hydrogenated polyisobutene such as Parleam, squalane;

- ethers oils having from 10 to 40 carbon atoms.

According to the present invention, the term “ether oil” means oil that is liquid at room temperature (25℃) comprising at least one ether functional group.

Particularly, according to the present invention, the ether oil is a dialkyl ether oil chosen from di-n-hexyl ether, di-n-heptyl ether, di-n-octyl ether, di-n-nonyl ether, di-n-decyl ether, di-isodecyl ether, di-n-dodecyl ether, di-n-eteradecyl ether, di-n-hexadecyl ether, di-n-oxtadecyl ether, or a mixture thereof.

The dialkyl ethers that may be used according to the present invention may be soluble or insoluble in the compositions, but are preferably insoluble.

These compounds may be prepared according to the process described in patent application DE 4127230.

Most preferably, a di-n-octyl ether (INCI name: dicaprylyl ether) that may be used in the context of the present invention. Such product is commercially available, for example those sold under the name

OE by the company Cognis (BASF) , or

OE by the company Ecogreen Oleochemicals;

- synthetic esters, for instance oils of formula R ₁COOR ₂, in which R ₁ represents a linear or branched fatty acid residue containing from 1 to 40 carbon atoms, and R ₂ represents a hydrocarbon-based chain, in particular a branched chain, containing from 1 to 40 carbon atoms provided that R ₁ or R ₂ is greater than or equal to 10. The esters may in particular be selected from esters of fatty acid and of alcohol, for instance: cetostearyl octanoate, isopropyl alcohol esters, such as isopropyl myristate, isopropyl palmitate, ethyl palmitate, 2-ethylhexyl palmitate, isopropyl stearate or isostearate, isostearyl isostearate, octyl stearate, hydroxylated esters, for instance isostearyl lactacte, octyl hydroxystearate, diisopropyl adipate, heptanoates, and especially isostearyl heptanoate, alcohol or polyalcohol octanoates, decanoates or ricinoleates, for instance propylene glycol dioctanoate, cetyl octanoate, tridecyl octanoate, 2-ethylhexyl 4-diheptanoate and palmitate, alkyl benzoate, polyethylene glycol diheptanoate, propylene glycol 2-diethylhexanoate, and mixtures thereof, C ₁₂-C ₁₅ alkyl benzoates, hexyl laurate, neopentanoic acid esters, for instance isodecyl neopentanoate, isotridecyl neopentanoate, isostearyl neopentanoate, or octyldodecyl neopentanoate, isononanoic acid esters, for instance isononyl isononanoate, isotridecyl isononanoate and octyl isononanoate, hydroxylated esters such as isostearyl lactate and diisostearyl malate;

- polyol esters and pentaerythritol esters, for instance dipentaerythrityl tetrahydroxystearate/tetraisostearate,

- esters of diol dimers and diacid dimers, such as Lusplan

and Lusplan

sold by the nippon fine chemical company and described in the application US 2004-175338,

- copolymers of a diol dimer and of a diacid dimer and esters thereof, such as copolymers of dilinoleyl diol dimers/dilinoleic dimers and esters thereof, for instance Plandool-G,

- copolymers of polyols and of diacid dimers, and esters thereof, such as Hailuscent ISDA, or the copolymer of dilinoleic acid/butanediol,

- fatty alcohols that are liquid at ambient temperature, with a branched and/or unsaturated carbon chain having from 12 to 26 carbon atoms, for instance 2-octyldodecanol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, 2-butyloctanol and 2-undecylpentadecanol,

- C ₁₂-C ₂₂, higher fatty acids, such as oleic acid, linoleic acid or linolenic acid, and mixtures thereof, and,

- oils of higher molar mass having in particular a molar mass ranging from approximately 400 to approximately 10,000 g/mol, in particular from approximately 650 to approximately 10,000 g/mol, in particular from approximately 750 to approximately 7500 g/mol, and more particularly ranging from approximately 1000 to approximately 5000 g/mol. As oils of higher molar mass that can be used in the present invention, mention may in particular be made of the oils selected from:

● lipophilic polymers,

● linear fatty acid esters having a total carbon number ranging from 35 to 70,

● hydroxylated esters,

● aromatic esters,

● esters of C ₂₄-C ₂₈ branched fatty acids or fatty alcohols,

● oils of plant origin,

● and mixtures thereof; and

● mixtures thereof.

Useful fluoro oils may comprise, for instance, perfluoromethylcyclo pentane and perfluoro-1, 3-dimethylcyclohexane, sold under the names

PC1 and

PC3 by the company BNFL Fluorochemicals; perfluoro-1, 2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names PF

and PF

by the company 3M, or bromoperfluorooctyl sold under the name

by the company Atochem; nonafluoromethoxy butane and nonafluoroethoxyisobutane; perfluoromorpho line derivatives such as 4-trifluoromethyl perfluoromorpholine sold under the name PF

by the company 3M.

Silicone oil

According to an embodiment of the present invention, at least one silicone oil is used for component C) . For the purpose of the present invention, the term "silicone oil" is intended to mean an oil comprising at least one silicon atom, and especially at least one Si-O group. For purpose of the present invention, the term “silicone oil” is interchangeable with the terms “polysiloxane” and “polysiloxane oil. ”

Of course, a composition according to the invention or under consideration according to a process of the invention can contain a mixture of silicone oils only partly made up of such an oil.

The silicone oils that can be used in the compositions according to the invention may be non-volatile.

Non-volatile silicone oil

The present composition can optionally comprise at least one non-volatile silicone oil to be used as the silicone oil for component C) .

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

According to an embodiment of the present invention, examples of the non-volatile silicone oil can be made to polydialkylsiloxane family with terminal trimethylsilyl groups, such as oils with a viscosity in the range 0.2 m ²/s to 2.5 m ²/s at 25℃, for example oils from the DC200 series from DOW CORNING, in particular that with a viscosity of 60,000 Cst, from the SILBIONE 70047 series, more particularly 70,047 V 500,000 oil provided by the supplier RHODIA CHIMIE, polydialkylsiloxanes with terminal dimethylsilanol groups such as dimethiconol such as the oils of the 48 series from the company Rhodia or polyalkylarylsiloxanes such as SILBIONE 70641 V 200 oil provided by the supplier RHODIA CHIMIE.

The silicone oil may be present in the composition according to the present invention in an amount ranging from 0.1%to 10%by weight, preferably from 0.2%to 5%by weight and more particularly from 0.5%to 3%, relative to the total weight of the composition.

Amongst the silicone oils, amino silicone can be optionally used. The term “amino silicone” is intended to mean any silicone comprising at least one primary, secondary or tertiary amine or a quaternary ammonium group (i.e., a quaternizeed group) . Amino silicones are described, for example, in US2011/0155163 and US2011/155164, both of which are herein incorporated by reference.

A particular example of useful silicone oil is dimethicone or a derivative thereof.

Dimethicone derivatives

Thus, the compositions of the present invention may advantageously comprise a dimethicone derivative. Preferably, the dimethicone derivatives used herein are selected from the group consisting of polyoxyethylene derivatizeed dimethicones, polyoxypropylene derivatized dimethicones, polyoxyethylene/polyoxypropylene derivatized dimethicones, and combinations thereof.

As used herein, the term "polyoxyethylene derivattized dimethiccone′ is meant to include dimethicone polymers comprising a substituted or unsubstituted polyethylene glycol (PEG) functional group and methicone polymers comprising a substituted or unsubstituted PEG functional group. The polyoxyethylene derivatized dimethicone may be either pendant or linear. Pendant polyoxyethylene derivatized dimethicone has the following general structure of formula (XI) :

wherein R ₁ of formula (XI) is a substituted or unsubstituted polyethylene glycol functional group, x is any number from 0 to 350, and y is any number from 1 to 350. Polyoxyethylene derivatized dimethicones wherein x is 0 are methicone polymers comprising a substituted or unsubstituted PEG functional group.

Linear polyoxyethylene derivatized dimethicone has the following general structure of formula (XII) :

wherein R ₁ of formula (XII) is a substituted or unsubstituted polyethylene glycol functional group, and x is any number from 1 to 700.

Examples of preferred polyoxyethylene derivattized dimethicones suitable for use in the compositions of the present disclosure include

dimethicones, available from Momentive (Wilton, CT) , such as SF1488 (INCI desiignation: PEG-4 dimethicone) ,

805 (INCI designation: PEG-8 dimethicone; molecular weight: about 10,000) ; ;

810 (INCI designation: PEG-8 dimethicone; molecular weight: about 1, 700) ,

840 (INCI designation: PEG-8 dimethicone; molecular weight: about 4,000) ,

870 (INCI designation: PEG-12 dimethicone; molecular weiight: about 2, 100) , SF1288 (INCI designation: PEG-12 dimethicone) ; ;

875 (INCI designation: : PEG-12 dimethicone) ;

880 (INCI designation: PEG-12 dimethicone; molecular weight: about 5,000) ;

895 (INCI designation: PEG-17 dimethicone; molecular weight: about 5,000) , SF1388 (INCI designation: bis-PEG-20 dimethicone) . The SF1488, ,

810,

870, and SF1388 are linear polyoxyethylene derivatized dimethicones, while the

805,

840, SF1288,

8875,

880, and

895 are pendant polyoxyethyllene derivatized dimethicones.

Other examples of suitable polyoxyethylene derivatized dimethicones include PEG-I dimethicone, PEG-3 dimethicone, PEG-6 dimethicone, PEG-7 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-14 dimethicone, and the like.

The polyoxyethylene derivatized dimethicone may also includee PEG derivatizedd dimethicones that have additional moieties added to the polymer, including bis-PEG-15 methyl ether dimethicone, dimethicone PEG-15 acetate, dimethicone PEG-8 adipate, , dimethicone PEG-7 avocadoate, dimethicone PEG-8 avocadoate, dimethicone PEG-8 beeswax, dimethicone PEG-8 benzoate, dimethicone PEG-8 borageate, dimethicone PEG-7 cocoate, dimethicone PEG-7 isostearate, dimethicone PEG-8 isostearate, dimethicone PEG-7 lactate, dimethicone PEG-8 lanolate, dimethicone PEG-8 laurate, dimethicone PEG-8 meadowfoamate, dimethicone PEG-7 octyldodecyl citrate, dimethicone PEG-7 olivate, dimethicone PEG-8 olivate, dimethicone PEG-7 phosphate, dimethicone PEG-8 phosphate, dimethicone PEG-10 phosphate, dimethicone PEG-7 phthalate, dimethicone PEG-8 phthalate, dimethicone PEG-8 polyacrylate, dimethicone PEG-7 succinate, dimethicone PEG-8 succinate, dimethicone PEG-7 sulfate, dimethicone PEG-7 undecylenate, lauryl dimethicone PEG-10 phosphate, lauryl PEG-8 dimethicone, lauryl PEG-10 methyl ether dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, PEG-6 methyl ether dimethicone, PEG-7 methyl ether dimethicone, PEG-8 methyl ether dimethicone, PEG-9 methyl ether dimethicone, PEG-10 methyl ether dimethicone, PEG-Il methyl ether dimethicone, PEG-32 methyl ether dimethicone, PEG-12 methyl ether lauroxy PEG-5 amidopropyl dimethicone, perfluorononylethyl carboxydecyl PEG-8 dimethicone, perfluorononylethyl carboxydecyl PEG-10 dimethicone, perfluorononylethyl PEG-8 dimethicone, and combinations thereof.

Preferred polyoxyethylene derivatized dimethicones are selected from the group consisting of PEG-3 dimethicone, PEG-4 dimethicone, PEG-8 dimethicone, PEG-12 dimethicone, PEG-17 dimethicone, bis-PEG-20 dimethicone, and combinations thereof.

The dimethicone derivative may also be a polyoxypropylene derivatized dimethicone. As used herein, the term "polyoxypropylene derivatized dimethicone" is meant to include dimethicone polymers comprising a substituted or unsubstituted polypropylene glycol (PPG) functional group and methicone polymers comprising a substituted or unsubstituted PPG functional group. Like discussed above with regard to the polyoxyethylene derivatized dimethicones, the polyoxypropylene derivatized dimethicone may be either pendant or linear. Pendant and linear polyoxypropylene derivatized dimethicones have the same general structures as set forth above for pendant and linear polyoxyethylene derivatized dimethicones, respectively, except Ri is a substituted or unsubstituted polypropylene glycol functional group.

Examples of preferred polyoxypropylene derivatized dimethicones suitable for use in the compositions of the present disclosure include

dimethicones, available from Momentive (Wilton, CT) , such as

900 (INCI designation: PPG-12 dimethicone; molecular weight: about 2, 800) ,

910 (INCI designation: PPG-12 dimethicone; molecular weight: about 13,000) , and

920 (INCI designation: PPG-12 dimethicone) .

900 is a linear polyoxypropylene derivatized dimethicone, while

910 and

920 are a pendant polyoxypropylene derivatized dimethicones.

Other examples of suitable polyoxypropylene derivatized dimethicones include PPG-2 dimethicone, PPG-27 dimethicone, and the like. The polyoxypropylene derivatized dimethicone may also include PPG derivatized dimethicones that have additional moieties added to the polymer, including PPG-12 butyl ether dimethicone, and the like.

Thus, in one embodiment, the dimethicone derivative is a polyoxypropylene derivatized dimethicone selected from the group consisting of PPG-12 dimethicone, PPG-2 dimethicone, PPG-27 dimethicone, PPG-12 butyl ether dimethicone, and combinations thereof.

The dimethicone derivative may also be a polyoxyethylene/polyoxypropylene derivatized dimethicone. As used herein, the term "polyoxyethylene/polyoxypropylene derivatized dimethicone" is meant to include dimethicone polymers comprising a substituted or unsubstituted polyoxyethylene/polyoxypropylene (PEG/PPG) functional group and methicone polymers comprising a substituted or unsubstituted PEG/PPG functional group. Like discussed above with regard to the polyoxyethylene derivatized dimethicones and the polyoxypropylene derivatized dimethicones, the polyoxyethylene/polyoxypropylene derivatized dimethicone may be either pendant or linear. Pendant and linear polyoxyethylene/polyoxypropylene derivatized dimethicones have the same general structures as set forth above for pendant and linear polyoxyethylene derivatized dimethicones, respectively, except R1 is a substituted or unsubstituted polyethylene glycol/polypropylene glycol functional group.

Examples of preferred polyoxyethylene/polyoxypropylene derivatized dimethicones suitable for use in the compositions of the present disclosure include

dimethicones, available from Momentive (Wilton, CT) , such as

430 (INCI designation: PEG-20/PPG-23 dimethicone; molecular weight: about 29,000) , SF1188A (INCI designation: PEG/PPG 20-15 dimethicone) ,

440 (INCI designation: PEG-20/PPG-23 dimethicone; molecular weight: about 20,000) , and

475 (INCI designation: PEG-23/PPG-6 dimethicone; molecular weight: about 19,000) .

430, SF1188A,

440, and

475 are all pendant polyoxyethylene/polyoxypropylene derivatized dimethicones.

Other examples of suitable polyoxyethylene/polyoxypropylene derivatized dimethicones include PEG-3/PPG-10 dimethicone, PEG-4/PPG-12 dimethicone, PEG-6/PPG-11 dimethicone, PEG-8/PPG-14 dimethicone, PEG-8/PPG-26 dimethicone, PEG-10/PPG-2 dimethicone, PEG-12/PPG-16 dimethicone, PEG-12/PPG-18 dimethicone, PEG-14/PPG-4 dimethicone, PEG-15/PPG-15 dimethicone, PEG-16/PPG-2 dimethicone, PEG-16/PPG-8 dimethicone, PEG-17/PPG-18 dimethicone, PEG-18/PPG-6 dimethicone, PEG-18/PPG-18 dimethicone, PEG-19/PPG-19 dimethicone, PEG-20/PPG-6 dimethicone, PEG-20/PPG-15 dimethicone, PEG-20/PPG-20 dimethicone, PEG-20/PPG-29 dimethicone, PEG-22/PPG-23 dimethicone, PEG-22/PPG-24 dimethicone, PEG-23/PPG-6 dimethicone, PEG-25/PPG-25 dimethicone, PEG-27/PPG-27 dimethicone, PEG-30/PPG-10 dimethicone, and PPG-4-oleth-10 dimethicone (i.e., PEG-10/PPG-4 dimethicone) .

The polyoxyethylene/polyoxypropylene derivatized dimethicone may also include PEG/PPG derivatized dimethicones that have additional moieties added to the polymer, including Bis-PEG-16/PPG-16 PEG-I 6/PPG-l 6 dimethicone, dimethicone PEG-20/PPG-23 benzoate, dimethicone PEG-7/PPG-4 phosphate, dimethicone PEG-12/PPG-4 phosphate, PEG-28/PPG-21 acetate dimethicone, PEG/PPG-20/22 butyl ether dimethicone, PEG/PPG-22/22 butyl ether dimethicone, PEG/PPG-23/23 butyl ether dimethicone, PEG-24/PPG-18 butyl ether dimethicone PEG-27/PPG-9 butyl ether dimethicone PEG-24/PPG-24 methyl ether glycidoxy dimethicone, PEG-10/PPG-3 oleyl ether dimethicone, and the like.

Preferred polyoxyethylene/polyoxypropylene derivatized dimethicones are selected from the group consisting of PEG-20/PPG-23 dimethicone, PEG/PPG 20-15 dimethicone, PEG-23/PPG-6 dimethicone, and combinations thereof. In one preferred embodiment, the dimethicone derivative is a PEG-20/PPG-23 dimethicone, such as

440.

As noted above, the polyoxyethylene/polyoxypropylene derivatized dimethicones may be methicone polymers comprising a PEG/PPG functional group. Suitable examples of such polymers are the

methicones, available from Momentive (Wilton, CT) , such as

305 (INCI designation: PEG-5/PPG-3 methicone; molecular weight 600) .

Typically, the compositions comprise dimethicone derivatives in an amount of from about 0.5% (by total weight of the composition) to about 5.0% (by total weight of the composition) , preferably, from about 1.0% (by total weight of the composition) to about 5.0% (by total weight of the composition) , or in an amount of from about 2.0% (by total weight of the composition) to about 4.0% (by total weight of the composition) .

According to an embodiment of the invention, the dimethicone derivative may be an amino-derivative thereof. Non-limiting examples include amodimethicone, silicone quaternium-22, trimethylsilyl amodimethicone , bis-isobutyl/PEG/PPG-20/35/amodimethicone copolymer, bis-cetearyl amodimethicone, bis-amino PEG/PPG-41/3 aminoethyl PG-propyl dimethicone, PEG-40/PPG-8 methylaminopropyl hydroxypropyl dimethicone copolymer, bis-isobutyl/PEG/PPG-20/35/amodimethicone copolymer, quaternium-80, methoxy PEG/PPG-7/3 aminopropyl dimethicone, silicone quaternium-22, bis (C13-15 Alkoxy) PG-amodimethicone, bis-hydroxy/methoxy amodimethicone, aminopropyl phenyl trimethicone, aminopropyl dimethicone, bis-aminopropyl dimethicone, PEG-7 amodimethicone, silicone quaternium-8, visamino PEG/PPG-41/3 aminoethyl PG-propyl dimethicone, polysilicone-19, silicone quaternium-18, and mixtures thereof.

According to an embodiment, the component C) can be present in the composition in an amount ranging from 0.1%to 50%by weight, preferably from 1%to 40%by weight, or from 3%to 30%by weight, relative to the total weight of the composition.

More particularly, as an oil, the component C) can be present in a relatively high amount in the composition according to the present invention, in which a relatively high amount of acid may be concurrently present. Thus, the component C) may be particularly present in an amount of from 10%to 50%by weight, from 10%to 40%by weight, preferably from 15%to 30%by weight, or from 15%to 25%by weight, relative to the total weight of the composition.

Surfactant

Surfactants are generally added into the skin care products. The composition may comprise any known cationic surfactant, nonionic surfactant, and/or amphoteric surfactant, as long as the surfactants will not bring substantively disadvantage to the invention, especially to the compatibility of high content of oil with high content of acid.

Cationic surfactant

According to an embodiment of the invention, the composition of the present invention may comprise at least one cationic surfactant. Mention may be made, for example, of optionally polyoxyalkylenated primary, secondary or tertiary fatty amine salts, quaternary ammonium salts, and mixtures thereof.

Among the quaternary ammonium salts, preference may be given to:

- a) tetraalkylammonium halides such as tetraalkylammonium chlorides, for instance tetraalkylammonium or alkyltrimethylammonium halides such as dialkyldimethylammonium or alkyltrimethylammonium chlorides in which the alkyl group contains from approximately 12 to 22 carbon atoms, in particular halides such as behenyltrimethylammonium chloride, distearyldimethylammonium chloride, cetyltrimethylammonium chloride, benzyldimethylstearylammonium chloride, or else, secondly, alkoxy sulfates, especially distearoylethylhydroxyethylmethylammonium methosulfate, dipalmitoylethylhydroxyethylammonium methosulfate or distearoylethylhydroxyethylammonium methosulfate, or else, lastly, palmitylamidopropyltrimethylammonium halide, particularly the chloride or stearamidopropyldimethyl (myristyl acetate) ammonium chloride, sold under the name

70 by the company Van Dyk;

- b) quaternary ammonium salts of imidazoline;

- c) quaternary diammonium or triammonium salts;

- d) quaternary ammonium salts containing one or more ester functions.

Among the quaternary ammonium salts containing one or more ester functions, examples that may be mentioned include salts, especially the chloride or methyl sulfate, of diacyloxyethyldimethylammonium, diacyloxyethylhydroxyethylmethylammonium, monoacyloxyethyldihydroxyethylmethylammonium, triacyloxyethylmethylammonium or monoacyloxyethylhydroxyethyldimethylammonium, and mixtures thereof. The acyl groups preferably contain 14 to 18 carbon atoms and are obtained more particularly from a plant oil such as palm oil or sunflower oil. When the compound contains several acyl groups, these groups may be identical or different.

The composition according to the invention may contain, for example, a mixture of quaternary ammonium salts of mono-, di-and triesters with a weight majority of diester salts.

It is also possible to use the ammonium salts containing at least one ester function that are described in patents US-A-4 874 554 and US-A-4 137 180.

Use may be made of behenoylhydroxypropyltrimethylammonium chloride sold by KAO under the name Quatarmin BTC 131.

Preferably, the ammonium salts containing at least one ester function contain two ester functions.

Some amines may provide cations when being interacted with other reagents, e.g., certain acids. In such cases, the specific amines may be classified into the useful cationic surfactant.

Preferred examples of the useful cationic surfactant comprise non-silicone cationic surfactants, including cetyl triammonium, behenyl triammonium, dipalmitoylethyl hydroxyethyl methyl ammonium, distearoylethyl hydroxyethyl methyl ammonium, methyl (C9-C19) alkyl, (C10-C20) alkyl amidoethylimidazolium, and stearamidopropyldimethylamine, a salt of stearamidopropyl dimethylammonium, and mixtures thereof.

According to a preferred embodiment, the cationic surfactant is the chloride and bromide salts of tetraalkylammonium, alkylamidoalkyltrialkylammonium, trialkylbenzylammonium, trialkylhydroxyalkylammonium or alkylpyridinium.

Nonionic surfactant

The composition according to the present invention may preferably comprise at least one nonionic surfactant, which may be fatty acid ester or ether of polyglycerol, or other conventional surfactant.

As nonionic surfactant of the composition according to the invention, mono-or poly-glycerolated surfactants may be used, which preferably comprise on average from 1 to 30 glycerol groups, more particularly from 1 to 10 glycerol groups and in particular from 1.5 to 5.

The monoglycerolated or polyglycerolated surfactants are preferably chosen from the compounds of the following formulae:

R”O [CH ₂CH (CH ₂OH) O] _mH,

R”O [CH ₂CH (OH) CH ₂O] _mH or

R”O [CH (CH ₂OH) CH ₂O] _mH;

in which formulae:

●R” represents a saturated or unsaturated, linear or branched hydrocarbon-based radical comprising from 8 to 40 carbon atoms and preferably from 10 to 30 carbon atoms; m is an integer between 1 and 30, preferably between 1 and 10 and more particularly from 1.5 to 6; R” may optionally comprise heteroatoms, for instance oxygen and nitrogen. In particular, R” may optionally comprise one or more hydroxyl and/or ether and/or amide groups. R” preferably denotes mono-or polyhydroxylated C ₁₀-C ₂₀ alkyl, and/or alkenyl radicals.

Use may be made, for example, of the polyglycerolated (3.5 mol) hydroxylauryl ether sold under the name

NF from Chimex.

The (poly) ethoxylated fatty alcohols that are suitable for performing the invention are chosen more particularly from alcohols containing from 8 to 30 carbon atoms, and preferably from 12 to 22 carbon atoms.

The (poly) ethoxylated fatty alcohols more particularly contain one or more linear or branched, saturated or unsaturated hydrocarbon-based groups, comprising 8 to 30 carbon atoms, which are optionally substituted, in particular with one or more (in particular 1 to 4) hydroxyl groups. If they are unsaturated, these compounds may comprise one to three conjugated or non-conjugated carbon-carbon double bonds.

The (poly) ethoxylated fatty alcohol (s) preferably have the following formula (XII) :

with

- R ₃ representing a linear or branched C ₈-C ₄₀ alkyl or alkenyl group and preferably C ₈-C ₃₀ alkyl or alkenyl group, optionally substituted with one or more hydroxyl groups, and

- c is an integer between 1 and 200 inclusive, preferably between 2 and 50 and more particularly between 8 and 30, such as 20.

According to an embodiment of the invention, the composition may comprise at least one fatty acid ester of polyglycerol for use as a nonionic surfactant.

According to a preferred embodiment, the fatty acid ester of polyglycerol is chosen from esters resulting from the reaction of polyglycerol comprising from 2 to 12 glycerol units, preferably from 3 to 10 glycerol units, and of at least one fatty acid containing from 6 to 24 carbon atoms, preferably from 8 to 20 carbon atoms, or from 8 to 18 carbon atoms. The fatty acids containing from 8 to 24 carbon atoms may be linear or branched, and saturated or unsaturated.

The fatty acid esters of polyglycerol can be chosen from monoesters, diesters, triesters and tetraesters, polyesters and mixtures thereof. Use is preferably made of esters with a low degree of esterification, for instance fatty acid monoesters, diesters or triesters of polyglycerol, or a mixture. The fatty acid ester of polyglycerol can be in the form of a mixture of esters with a low degree of esterification, for instance a mixture of monoester and diester or a mixture of monoester, diester and triester.

Mention may in particular be made of polyglyceryl-2 distearate, in particular as sold by NIHON EMULSION under the name Emalex PGSA; polyglyceryl-10 decastearate, in particular as sold by TAIYO KAGAKU under the name Sunsoft Q-1810S; polyglyceryl-5 hexastearate, in particular as sold by TAIYO KAGAKU under the name Sunsoft A-186E; polyglyceryl-2 laurate, in particular as sold by TAIYO KAGAKU under the name Sunsoft Q-12D; polyglyceryl-5 laurate, in particular as sold by TAIYO KAGAKU under the name Sunsoft A-121E-C; polyglyceryl-10 pentaoleate, in particular as sold by TAIYO KAGAKU under the name Sunsoft Q-175S; polyglyceryl-10 pentastearate, in particular as sold by TAIYO KAGAKU under the name Sunsoft Q-185S; polyglyceryl-4 isostearate, in particular as sold by EVONIK GOLDSCHMIDT under the name Isolan GI 34; diisostearoyl polyglyceryl-3 dimer dilinoleate, in particular as sold by EVONIK GOLDSCHMIDT under the name Isolan PDI; polyglyceryl-2 oleate, in particular as sold by TAIYO KAGAKU under the name Sunsoft Q-17B; polyglyceryl-5 trimyristate, in particular as sold by TAIYO KAGAKU under the name Sunsoft A-143E; polyglyceryl-2 caprylate, in particular as sold by TAIYO KAGAKU under the name Sunsoft Q-81B; polyglyceryl-6 dicaprate, in particular as sold by TAIYO KAGAKU under the name SUNSOFT Q-102H-C.

According to an embodiment of the invention, the composition according to the present invention may comprise at least one additional nonionic surfactant other than fatty acid ester or ether of polyglycerol.

Examples of the useful additional nonionic surfactants may comprise esters of polyols and of fatty acids with a saturated or unsaturated chain containing, for example, from 8 to 24 carbon atoms and better still from 12 to 22 carbon atoms, and the oxyalkylenated derivatives thereof, i.e. derivatives containing oxyethylenated and/or oxypropylenated units, e.g., oxyalkylenated derivatives thereof; the polyethylene glycol esters of C ₈-C ₂₄ fatty acids, and the oxyalkylenated derivatives thereof; the sorbitol esters of C ₈-C ₂₄ fatty acids, and the oxyalkylenated derivatives thereof; the sugar (sucrose, glucose or alkylglucose) esters of C ₈-C ₂₄ fatty acids (fatty acid esters of glucose or of alkylglucose) , and the oxyalkylenated derivatives thereof; fatty alcohol ethers; the sugar ethers of C ₈-C ₂₄ fatty alcohols, and mixtures thereof.

Fatty acid esters of glucose or of alkylglucose that may be mentioned in particular include glucose palmitate, alkylglucose sesquistearates, for instance methylglucose sesquistearate, alkylglucose palmitates, for instance methylglucose palmitate or ethylglucose palmitate, fatty esters of methylglucoside and more especially the diester of methylglucoside and of oleic acid (CTFA name: methyl glucose dioleate) ; the mixed ester of methylglucoside and of the oleic acid/hydroxystearic acid mixture (CTFA name: methyl glucose dioleate/hydroxysterate) ; the ester of methylglucoside and of isostearic acid (CTFA name: methyl glucose isostearate) ; the ester of methylglucoside and of lauric acid (CTFA name: methyl glucose laurate) ; the mixture of the monoester and diester of methylglucoside and of isostearic acid (CTFA name: methyl glucose sesquiisostearate) ; the mixture of the monoester and diester of methylglucoside and of stearic acid (CTFA name: methyl glucose sesquistearate) and in particular the product sold under the name

SS by the company Amerchol, and mixtures thereof.

Examples of oxyethylenated ethers of a fatty acid and of glucose or of alkylglucose that may be mentioned include the oxyethylenated ethers of a fatty acid and of methylglucose, and in particular the polyethylene glycol ether of the diester of methyl glucose and of stearic acid containing about 20 mol of ethylene oxide (CTFA name: PEG-20 methyl glucose distearate) , such as the product sold under the name

E-20 distearate by the company Amerchol; the polyethylene glycol ether of the mixture of monoester and diester of methylglucose and of stearic acid containing about 20 mol of ethylene oxide (CTFA name: PEG-20 methyl glucose sesquistearate) and in particular the product sold under the name

SSE-20 by the company Amerchol, and the product sold under the name

PSE-20 by the company Goldschmidt, and mixtures thereof.

Examples of sucrose esters that may be mentioned include sucrose palmitostearate, sucrose stearate and sucrose monolaurate.

Examples of fatty alcohol ethers that may be mentioned include polyethylene glycol ethers of fatty alcohols containing from 8 to 30 carbon atoms and especially from 10 to 22 carbon atoms, such as polyethylene glycol ethers of cetyl alcohol, of stearyl alcohol or of cetearyl alcohol (mixture of cetyl alcohol and stearyl alcohol) . Examples that may be mentioned include ethers comprising from 1 to 200 and preferably from 2 to 100 oxyethylene groups, such as those of CTFA name Ceteareth-20 and Ceteareth-30, and mixtures thereof.

Sugar ethers that may especially be mentioned are alkylpolyglucosides, for example decylglucoside, for instance the product sold under the name

10 by the company Kao Chemicals, the product sold under the name

2000 by the company Henkel, and the product sold under the name

NS 10 by the company SEPPIC; caprylyl/capryl glucoside, for instance the product sold under the name

CG 110 by the company SEPPIC or under the name

GD 70 by the company BASF; laurylglucoside, for instance the products sold under the names

1200 N and

1200 by the company Henkel; cocoglucoside, for instance the product sold under the name Plantacare 818/UP by the company Henkel; cetostearyl glucoside optionally as a mixture with cetostearyl alcohol, sold, for example, under the name

68 by the company SEPPIC, under the name

CG90 by the company Goldschmidt and under the name

KE3302 by the company Henkel; arachidyl glucoside, for example in the form of the mixture of arachidyl alcohol and behenyl alcohol and arachidyl glucoside, sold under the name

202 by the company SEPPIC; cocoylethylglucoside, for example in the form of the mixture (35/65) with cetyl alcohol and stearyl alcohol, sold under the name

82 by the company SEPPIC; and mixtures thereof.

PEG modified ester can also be used, such as PEG-7 Olivate, PEG-7 Glyceryl Cocoate, PEG-30 Glyceryl Cocoate, PEG-80 Glyceryl Cocoate.

Polysorbate series, such as Polysorbate 20, 21, 60, 61 and 80, or glyceride compounds, such as caprylic glyceride (also called as monocaprylin) , capric glyceride (also called as monocaprin) , and lauric glyceride (also called as monolaurin) , e.g., PEG-6 caprylic/capric glyceride, may be additionally mentioned as examples of useful additional nonionic surfactants.

Amphoteric surfactant

According to an embodiment of the invention, the composition according to the present invention comprises at least one amphoteric surfactant, which may also be called as zwitterionic surfactant.

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

By way of example, mention may be made of the N-cocoylamidocarboxymethyl glycinate of an alkali metal such as sodium, or cocoamphodiacetate sold for example by the company Rhodia under the trade name

C2M concentrate.

Mention may be made in particular of a betaine surfactant, e.g., (C ₈-C ₂₀) alkylbetaines, sulfobetaines, (C ₈-C ₂₀ alkyl) amido (C ₂-C ₈ alkyl) betaines and (C ₈–C ₂₀ alkyl) amido (C ₂-C ₈ alkyl) sulfobetaines.

Among all the amphoteric surfactants mentioned above, use is preferably made of cocoylamidopropylbetaine, cocoylbetaine and the N-cocoylamidocarboxymethyl glycinate of an alkali metal such as sodium.

According to one specific embodiment of the present invention, the amphoteric surfactant mentioned above is cocoylamidopropylbetaine or cocoylbetaine.

Medium/solvent

The composition according to the invention can advantageously comprise at least one medium/solvent, for use as component C) , including water and/or organic medium/solvent.

Water

The composition according to the invention may advantageously comprise water in various amounts. For low viscosity applications of the composition, e.g., in form of leave-on lotion, a relatively high amount of water may be used. For example, water is used in a content of greater than or equal to 40%by weight relative to the total weight of composition. The water content in the low viscosity composition according to the invention may range from 40%to 85%by weight, preferably from 45%to 80%by weight, or from 50%to 70%by weight, relative to the total weight of the composition.

Organic medium/solvent

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

Examples of the organic medium/solvents that may be mentioned include linear or branched, and preferably saturated, monoalcohols or diols, comprising 2 to 10 carbon atoms, such as ethanol, (iso) propanol, butanol, hexylene glycol (2-methyl-2, 4-pentanediol) , neopentyl glycol and 3-methyl-1, 5-pentanediol, butylene glycol, dipropylene glycol and propylene glycol; aromatic alcohols such as phenylethyl alcohol; polyols containing more than two hydroxyl functions, in particular C3-C6 polyols, such as glycerol; polyol ethers, for instance ethylene glycol monomethyl, monoethyl and monobutyl ether, propylene glycol or ethers thereof, for instance propylene glycol monomethyl ether; and also diethylene glycol alkyl ethers, especially C ₁-C ₄ alkyl ethers, for instance diethylene glycol monoethyl ether or monobutyl ether, alone or as a mixture.

The organic medium/solvents, when they are present in an amount ranging from 0.1%to 40%by weight, preferably from 1%to 30%by weight, or from 5%to 20%by weight, relative to the total weight of the composition according to the invention.

Emulsion form

For use of the present invention, the composition according to the present invention may comprise an oil as component C) and water. In other words, according to an embodiment of the present invention, the composition comprises the concurrent presence of both oil and water.

The oil of component C) and water may be incorporated into the composition in any manner in the art for the concurrent presence thereof, such as layered composition, dispersion, emulsion and so on.

For example, the composition can be an emulsion, e.g., an oil-in-water (O/W) emulsion. Such an O/W emulsion comprises concurrently oil and aqueous phases, and can bring double senses of moisturizing and non-greasy feelings. Regarding the O/W emulsion, any conventional emulsifier can be used, as long as the purpose of the invention is not adversely affected. In addition, for the presence of the acid of component A) , the emulsion has a pH of not more than 6, preferably not more than 5.5.

Preservative

For use of the present invention, the composition according to the present invention may optionally comprise a preservative. The preservative useful according to the present invention can be any one conventionally used for cosmetics, in particular for ampoule products.

For example, preservatives can be used according to the present invention comprise methylchloroisothiazolinone, imidazolidinyl urea, derivatives of hydantoin, such as DMDMH, parahydroxybenzoate ester, phenoxyethanol, benzyl alcohol, chlorphenesin, benzoic acid and a derivative thereof, e.g., a salt thereof, such as sodium benzoate, potassium sorbate, hydroxyacetophenone, amino-acid based preservative, sorbitan octanate, glycerol caprylate and the like, or salicylic acid.

The preservative can be present according to the invention in an amount ranging from 0.01 to 5%, preferably from 0.01%to 3%, or from 0.01%to 1%, relative to the total weight of the composition of the present invention.

Chelating agents

According to one particularly advantageous embodiment, the composition may comprise a chelating agent. Such chelating agents are defined and described in particular in the article "Chelating agents" Kirk Othmer Encyclopedia of Chemical Technology, Vol. 5 pp. 708-739, published in 2003.

As mentioned in that article, the examples of a chelating agent are made to polyphosphates, aminocarboxylic acids, 1, 3-diketones, hydroxycarboxylic acids, polyamines, amino alcohols, heterocyclic aromatic bases, aminophenols, Schiff's bases, tetrapyrroles, sulfur compounds, synthetic macrocyclic compounds, polymers and phosphonic acids.

For the purpose of the present invention, useful chelating agents can comprise elhylenediamine tetraacetic acid (EDTA) , aminotriacetic acid, diethylene triaminepentaacetic acid, and a salt thereof, e.g., N, N-bis (carboxymethyl) glutamic acid, disodium EDTA, tetrasodium EDTA, tetrasodium salt of N, N-bis (carboxymethyl) glutamic acid (glutamic acid diacetic acid, GLDA) ; hydroxyl carboxylic acids, e.g., citric acid, tartaric acid, glucuronic acid, succinic acid, ethylenediamine disuccinic acid (EDDS) , and a salt thereof; hydroxyl aminocarboxylic acids, e.g., hydroxyethylethylenediamine triacetic acid (HEDTA) , dihydroxyethylglycine (DEG) , and a salt thereof; polyphosphonic acid, and a salt thereof; other phosphor-containing organic acid, e.g., phytic acid, and a salt thereof, e.g., sodium phytate, potassium phytate polycarboxylic acid, e.g., polyacrylic acid, polymethacrylic acid, and a salt thereof.

These agents are particularly useful for reducing the electrostatic bonding associated with substantial presence of water in the intermediate makeup and/or care composition according to the invention. To do this, the addition of a sequestrant or of a complexing agent, for instance disodium/tetrasodium EDTA, makes it possible to complex the free ions, and more specifically the cations of the type Ca ²⁺ (mineral fillers) especially present in the nacres and fillers. Consequently, when EDTA complexes these ions, the ionic strength of the water decreases. Preferably, this agent is chosen from aminocarboxylic acids, and is preferably EDTA or a derivative thereof.

For example, a useful chelating agent is chosen from sodium citrate, disodium EDTA, tetrasodium EDTA, tetrasodium GLDA, trisodium EDDS, phytic acid, sodium phytate, potassium phytate, and mixtures thereof.

According to the present invention, the chelating agent can be present in the composition from 0.001%to 5%by weight, preferably from 0.01%to 0.1%by weight, or preferably from 0.1%to 0.5%by weight, relative to the total weight of the composition according to the present invention.

Additional active ingredient

The composition according to the invention may advantageously comprise one or more additional active ingredients, in particular cosmetic, dermatological or pharmaceutical.

In the context of the present invention, an additional active ingredient is an active ingredient other than polydatin or resveratrol present in the composition and the other active agents specifically defined above.

Advantageously, such additional active ingredient, cosmetic, dermatological or pharmaceutical, may be intended to exert a cosmetic, care or hygiene effect on keratin materials such as skin, including face, hair, eyelashes, scalp and/or leather hairy, and preferentially on the skin.

The choice of this additional active ingredient is of course conditioned by the effect sought jointly by the composition in question.

Thus, a composition according to the invention may further comprise an active ingredient having an anti-aging activity, or a hydration activity.

Of course, those skilled in the art will take care to choose the optional additional active ingredient (s) added to the composition according to the invention in such a way that the advantageous properties intrinsically attached to the composition according to the invention are not, or substantially not, altered by the proposed addition.

These additional active ingredients are generally present in the composition in a content ranging from 0.0001%to 20%by weight and preferably from 0.01%to 10%by weight relative to the total weight of said composition.

Additives

According to various embodiments, the compositions of the present invention are provided for application to skin. In accordance with these embodiments, the compositions of the present invention can comprise various ingredients conventionally useful in compositions for conditioning skin, such as, humectants, fatty substances, antidandruff agents, anti-seborrhoea agents, agents for preventing loss and/or for promoting regrowth, vitamins and provitamins including panthenol, sunscreens, sequestrants, plasticizers, acidifying agents, opacifiers, pearlescent or nacreous agents, antioxidants, hydroxyacids, fragrances and preserving agents.

A non-exhaustive listing of such ingredients can be found in U.S. patent application publication no. 2004/0170586, the entire contents of which is hereby incorporated by reference. Still further examples of such additional ingredients may be found in the International Cosmetic Ingredient Dictionary and Handbook (9 ^th ed. 2002) .

A person skilled in the art will take care to select the optional additional additives and/or the amount thereof such that the advantageous properties of the composition according to the invention are not, or are not substantially, adversely affected by the envisaged addition.

These additives may be selected variously by the person skilled in the art in order to prepare a composition which has the desired properties, for example, consistency or texture. In particular, the additives, if used, and the amounts thereof are particularly determined according to the specific products/applications thereof, e.g., leave-on conditioner, rinse-off conditioner, skincare conditioner and the like.

These additives may be present in the composition in an amount from 0.01%to 50%relative to the total weight of the composition, including all ranges and subranges therebetween.

Method and use

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

According to an embodiment, the composition according to the present invention can be used to formulate products useful for cosmetic use, e.g., for caring for keratin materials.

The composition according to the present invention is preferably useful to formulate skincare products. The present invention thus provides use of combination of component B) for enhancing the compatibility of high content of oil with high content of acid.

The invention will be further illustrated by the following examples, which set forth particularly advantageous embodiments.

Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the present invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contain certain errors necessarily resulting from the standard deviation found in their respective measurements. The following examples are intended to illustrate the present invention without limiting the scope as a result.

Examples

The ingredient amounts/concentrations in the compositions/formulas described below were expressed in %by weight, relative to the total weight of each composition/formula.

Material:

AMMONIUM ACRYLOYLDIMETHYLTAURATE/STEARETH-25 METHACRYLATE CROSSPOLYMER: ARISTOFLEX HMS, available from CLARIANT;

LACTIC ACID: LACTIC ACID 90, available from MUSASHINOCHEMICAL LABORATORY;

XANTHAN GUM: KELTROL CG-T, available from CP KELCO;

SQUALANE: NEOSSANCE SQUALANE, available from AMYRIS; and

DIMETHICONE: BELSIL DM 5 PLUS DIMETHICONE, available from Wacker;

other materials without specification here were each commercially available.

EXAMPLE I, PREPARATION OF COMPOSITIONS

Compositions were prepared according to Example 1 and Comparative Examples 1-4 as in Table 1 below:

Table 1

The above listed compositions were prepared according to known manufacturing method of field. Briefly, for example, the procedure of preparing the composition of Ex. 1 comprised the steps of:

1) . dispersing AMMONIUM ACRYLOYLDIMETHYLTAURATE/STEARETH-25 METHACRYLATE CROSSPOLYMER with SQUALANE, adding the mixture obtained into water and mixing to an uniform phase;

2) . adding XANTHAN GUM and mixing until all the polymer well swell in water; and

3) . adding LACTIC ACID at last step.

EXAMPLE II

Stability and viscosity of the compositions were measured.

Stability:

All the samples were put in a 55℃ oven for 1 week, and stability was judged depend on the aspect. If the aspect became not even or phase separation, the sample was not stable.

Viscosity: using proRheo viscosity meter to measure the viscosity with spindle NO ₂. If the viscosity was higher than 30 UD, the sample could be used as a serum.

Table 2

Claims

An aqueous composition, comprising the components of:

A) a cosmetically acceptable acid;

B) at least two thickeners, comprising:

B-1) hydrophobic AMPS copolymer comprising a hydrophobic modification moiety, preferably a modification moiety modified with a C16～C22 fatty chain; and

B-2) at least one polysaccharide with a molecular weight of more than 500,000; and

C) an oil selected from the group consisting of hydrocarbon-based oils, silicone oils or fluorine-based oils.
The composition according to claim 1, wherein the component A) comprises cosmetically acceptable inorganic acid, e.g., phosphoric acid, and cosmetically acceptable organic acid, such as glycolic acid, lactic acid, malic acid, gluconic acid, lactobionic acid, citric acid, tartaric acid and salicylic acid, preferably lactic acid, gluconic acid, or glycolic acid.
The composition according to any one of the preceding claims, wherein the component A) is present in an amount ranging from 0.1 to 30%by weight, from 3 to 30%by weight, or from 5 to 20%by weight, relative to the total weight of the composition.
The composition according to any one of the preceding claims, wherein the component B-1) is totally neutralized or at least 90%neutralized, preferably partially or totally neutralized with ammonia.
The composition according to any one of the preceding claims, wherein the component B-1) is crosslinked copolymers comprising at least the acrylamido-2 methylpropanesulfonic acid monomer.
The composition according to any one of the preceding claims, wherein the component B-1) is selected from the group consisting of acrylamide/sodium acrylamido-2-methylpropanesulfonate crosslinked copolymers, copolymers of AMPS and of vinylpyrrolidone or of vinylformamide, copolymers of AMPS and of sodium acrylate, AMPS/hydroxyethyl acrylate copolymer, or ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer.
The composition according to any one of the preceding claims, wherein the component B-1) is present in an amount ranging from 0.01%to 10%by weight, preferably from 0.1%to 5%by weight, or particularly from 0.3%to 3%by weight, or preferably from 0.5%to 2%by weight relative to the total weight of the composition.
The composition according to any one of the preceding claims, wherein the polysaccharide of component B-2) has a molecular weight of not more than 40,000,000.
The composition according to any one of the preceding claims, wherein the component B-2) is selected from the group consisting of gums such as xanthan gum, or gellan gum; cellulose and its derivatives, for example hydroxyethylcellulose; polyholosides comprising fucose, galactose and galacturonic acid units, for example biosaccharide gum-1.
The composition according to any one of the preceding claims, wherein the component B-2) is present in an amount ranging from 0.0001%to 5%by weight, preferably from 0.001%to 2%by weight, or from 0.005%to 1%by weight of the polysaccharides, relative to the total weight of the composition.
The composition according to any one of the preceding claims, wherein the component C) is selected from the group consisting of non-volatile oils, such as hydrocarbon oils of animal origin, hydrocarbon oils of plant origin, linear or branched hydrocarbons of mineral or synthetic origin, or ethers oils having from 10 to 40 carbon atoms, and silicone oils, preferably non-volatile silicone, such as dimethicone or a derivative thereof.
The composition according to any one of the preceding claims, wherein the component C) is present in the composition in an amount ranging from 0.1%to 50%by weight, preferably from 1%to 40%by weight, or preferably from 10%to 30%by weight, or from 15%to 25%by weight, relative to the total weight of the composition.
The composition according to any one of the preceding claims, further comprising water, and the composition is present in form of an oil-in-water emulsion, preferably having a pH of not more than 5.5
Use of a combination of at least two thickeners, comprising:

B-1) hydrophobic AMPS copolymer; and

B-2) at least one polysaccharide;

for enhancing the compatibility of oil with acid, wherein the components B-1) and B-2) are as defined in any one of the preceding claims.
A product useful for cosmetic use, comprising the composition according to any one of the preceding claims 1-14.