Non-stick stable composition with texture transition properties

Abstract

The present invention relates to a composition comprising: (a) at least one cellulose particle; (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units; and (c) water. The compositions according to the present invention are stable and can provide a non-stick feeling or a reduced stickiness feeling after application, and can also provide a texture change during application.

Description

Technical Field

[0001] The present invention relates to a composition, preferably a cosmetic composition, and more preferably a skin cosmetic composition, which is stable and can provide a texture transformation and non-stickiness. Background Art

[0002] Endowing the skin with a comfortable texture is one of the key features of cosmetics, especially skin care cosmetics.

[0003] In particular, for consumer satisfaction in use, there is still a need for a texture transformation (where the texture changes from, for example, a gel or cream to a liquid, which corresponds to a change in the physical properties of the composition, such as the collapse of the structure of the composition, which can allow the liquid to flow out of the composition) that can provide a fresh feeling at the early stage of application and a non-sticky feeling or a reduced sticky feeling after application.

[0004] It should be noted that compositions that are unstable and prone to causing the collapse of the composition structure usually provide a comfortable feeling during use. This means that it is difficult to provide both a comfortable feeling during use and good stability.

[0005] To date, several techniques for gel-like compositions or emulsion compositions that endow improved texture and stability have been reported. For example, WO2022 / 124385 discloses a stable composition that can provide a texture transformation. Summary of the Invention

[0006] However, there has been insufficient research on stable compositions that provide a non-sticky feeling or a reduced sticky feeling in addition to texture transformation.

[0007] The object of the present invention is to provide a stable composition that provides a non-sticky feeling or a reduced sticky feeling after application in addition to texture transformation during application.

[0008] The above object of the present invention can be achieved by the following composition, which is preferably a cosmetic composition, and more preferably a skin cosmetic composition, and comprises: (a) at least one cellulose particle; (b) at least one associative polymer comprising one or more acrylic acid and / or methacrylic acid units; and (c) water.

[0009] (a) The particle size of the cellulose particle can be 50 μm or less, preferably 30 μm or less, and more preferably 10 μm or less.

[0010] (a) The cellulose particle can have The wet point of the oil is at least 40 ml / 100 g, preferably at least 50 ml / 100 g, and more preferably at least 60 ml / 100 g, and the wet point of water is at least 100 ml / 100 g, preferably at least 200 ml / 100 g, and more preferably at least 300 ml / 100 g.

[0011] (a) The ratio of the wet point of water to the wet point of oil of the cellulose particles can be 5 or less, preferably 4 or less, and more preferably 2 or less.

[0012] (a) The cellulose particles can be spherical.

[0013] The amount of (a) one or more cellulose particles in the composition according to the invention can be from 0.1% to 20% by weight, preferably from 0.5% to 15% by weight, and more preferably from 1% to 10% by weight, relative to the total weight of the composition.

[0014] (b) The associative polymer can comprise one or more (meth)acrylic acid (C1-C 12 ) alkyl ester units.

[0015] (b) The associative polymer can comprise one or more units derived from polyoxyalkylenated fatty alcohols.

[0016] The amount of (b) one or more associative polymers in the composition according to the invention can be from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

[0017] The composition according to the invention can further comprise (d) at least one lipophilic organic UV filter.

[0018] (d) The lipophilic organic UV filter can be selected from cresyl triazone, bis(ethylhexyl) methoxyphenyl triazine, ethylhexyl triazone, diethylamino hydroxybenzoyl hexyl benzoate, butyl methoxydibenzoylmethane, ethylhexyl methoxycinnamate, ethylhexyl salicylate, octocrylene, homosalate and mixtures thereof.

[0019] The amount of (d) one or more lipophilic organic UV filters in the composition according to the invention can be from 1% to 30% by weight, preferably from 3% to 25% by weight, and more preferably from 5% to 20% by weight, relative to the total weight of the composition.

[0020] The composition according to the invention can further comprise (e) at least one oil, preferably selected from polar oils, and more preferably selected from ester oils, synthetic triglycerides, and mixtures thereof.

[0021] The composition according to the invention may further comprise (f) at least one non-ionic surfactant, preferably selected from polyglycerol fatty acid esters, and more preferably monoester of polyglycerol fatty acid.

[0022] The invention also relates to a cosmetic method for treating keratin materials, which comprises the step of applying the composition according to the invention to the keratin materials.

[0023] Specific embodiments of the invention After diligent research, the inventors have found a new method to provide a stable composition, which can provide a non-sticky feeling or a reduced sticky feeling after application, in addition to the texture change during application.

[0024] Therefore, one aspect of the invention is a composition comprising: (a) at least one cellulose particle; (b) at least one associative polymer comprising one or more acrylic and / or methacrylic acid units; and (c) water.

[0025] The composition according to the invention is stable and can provide a non-sticky feeling or a reduced sticky feeling after application, in addition to the texture change during application.

[0026] The composition according to the invention is stable immediately after preparation of the composition and for a long time after preparation of the composition, even under temperature changes from cold to hot temperatures. Therefore, the composition according to the invention is stable over time and can be stored for a long time, even under temperature changes occurring from winter to summer.

[0027] The composition according to the invention can provide a non-sticky feeling or a reduced sticky feeling after application.

[0028] The term "stickiness" here refers to the property of providing a sticky feeling to the skin.

[0029] The composition according to the invention can provide a texture change during application, preferably at an early stage of application. Here, the texture change refers to a change in texture from, for example, a gel or a cream to a liquid, which corresponds to a change in the physical properties of the composition, such as the collapse of the structure of the composition, which can allow the liquid to flow out of the composition. The tissue change can provide a fresh feeling.

[0030] Therefore, the composition according to the invention can provide an excellent touch feeling, especially the skin feeling during and after application of the composition.

[0031] Even if the composition according to the invention comprises (d) at least one lipophilic organic UV filter which has properties similar to those of an oil and which, after application, can cause an oily or greasy feel and a shiny appearance such as shiny skin, the composition according to the invention can also not provide or provide a reduced oily or greasy feel, and not provide or provide a reduced shiny appearance such as shiny skin. Thus, even if the composition according to the invention comprises (d) at least one lipophilic organic UV filter, the composition according to the invention is stable and, apart from the texture transformation during application, provides a non-sticky feel or a reduced sticky feel after application, and does not provide or provides a reduced oily / greasy feel, and does not provide or provides a reduced shiny appearance.

[0032] Hereinafter, the composition according to the invention and the like will be described in more detail.

[0033] [Cellulose particles] The composition according to the invention comprises (a) at least one cellulose particle having specific properties. If two or more cellulose particles are used, they may be the same or different.

[0034] (a) The particle size of the cellulose particles corresponds to the primary particle size. Additionally, the particle diameter herein refers to the average particle size (average or mean particle size), which may be the volume average particle size and which can be measured, for example, by a laser diffraction particle size analyzer.

[0035] There is no limitation on the particle size of the (a) cellulose particles used in the present invention. However, preferably, the particle diameter of the (a) cellulose particles is 50 μm or less, preferably 30 μm or less, more preferably 15 μm or less, even more preferably 10 μm or less, and particularly preferably 2 to 5 μm.

[0036] Preferably, the average primary particle diameter of 90% by volume or more of the (a) cellulose particles used in the present invention is 0.1 - 10 μm, preferably 0.5 - 8 μm, and more preferably 1 - 7 μm. If 90% by volume or more of the (a) cellulose particles have an average primary particle diameter of 1 - 7 μm, the optical effect caused by the particles can also be achieved.

[0037] The (a) cellulose particles used in the present invention can be in any particle form.

[0038] Preferably, the ratio of the longest diameter to the shortest diameter of the (a) cellulose particles used in the present invention is in the range of 1.0 to 10, preferably in the range of 1.0 to 5, and more preferably in the range of 1.0 to 3.

[0039] More preferably, the (a) cellulose particles are spherical, preferably with a ratio of the longest diameter to the shortest diameter of 1.0 to 1.1.

[0040] The (a) cellulose particles for use in the present invention may have a wet point for oil of at least 40 ml / 100 g, preferably at least 50 ml / 100 g, more preferably at least 60 ml / 100 g, more preferably at least 100 ml / 100 g, and even more preferably at least 250 ml / 100 g, and preferably 1500 ml / 100 g or less; and a wet point for water of at least 100 ml / 100 g, preferably at least 200 ml / 100 g, more preferably at least 300 ml / 100 g, even more preferably at least 350 ml / 100 g, and preferably 1500 ml / 100 g or less.

[0041] In the present specification, the term "wet point for oil" refers to the amount of oil necessary to completely wet the target powder, which can be identified in particular by forming a paste with the target powder.

[0042] The wet point for oil can be determined by the following protocol.

[0043] (1) While adding oil, knead 2 g of the target powder on a glass plate with a spatula, the oil being in particular a linear ester oil such as isononyl isononanoate (WICKENOL 151 / ALZO).

[0044] (2) When the target powder is completely wetted and starts to form a paste, the weight of the added oil is determined as the weight of the wet point.

[0045] (3) The wet point for oil is calculated by the following formula: wet point for oil (ml / 100 g) = { (weight of the wet point) / 2 g} X 100 / density of the oil.

[0046] Similarly, the term "wet point for water" in the specification refers to the amount of water necessary to completely wet the target powder, which can be identified in particular by forming a paste with the target powder.

[0047] The wet point for water can be determined by the following protocol.

[0048] (1) While adding water with a density of 0.998 g / ml, knead 2 g of the target powder on a glass plate with a spatula.

[0049] (2) When the target powder is completely wetted and starts to form a paste, the weight of the added water is determined as the weight of the wet point.

[0050] (3) The wet point for water is calculated by the following formula: wet point for water (ml / 100 g) = { (weight of the wet point) / 2 g} X 100 / density of the water.

[0051] Preferably, the ratio of the wet point of water to the wet point of oil for the (a) cellulose particles used in the present invention is 5 or less, preferably 4 or less, more preferably 3 or less, and even more preferably 2 or less, and preferably 0.1 or more.

[0052] (a) The cellulose particles may be porous or non-porous, preferably porous.

[0053] (a) The porosity of the cellulose particles may be characterized in that: according to the BET method, the specific surface area is 0.05 m 2 / g to 1,500 m 2 / g, more preferably 0.1 m 2 / g to 1,000 m 2 / g, and even more preferably 0.2 m 2 / g to 500 m 2 / g.

[0054] In the present invention, the cellulose usable for the (a) cellulose particles is not limited by the type of cellulose, such as cellulose I, cellulose II, etc. As the cellulose that can be used as the material for the (a) cellulose particles of the present invention, type II cellulose is preferred.

[0055] (a) The cellulose particles, preferably spherical cellulose particles, can be prepared, for example, as follows.

[0056] (1) A slurry of calcium carbonate is added to an aqueous solution of an alkaline water-soluble anionic polymer as an aggregation inhibitor, and stirred.

[0057] (2) Viscose fibers are mixed with the aqueous solution obtained in the above (1) to form a dispersion of fine viscose fiber particles.

[0058] (3) The dispersion of the viscose fiber microparticles obtained in the above (2) is heated to cause the viscose fibers in the dispersion to aggregate, and neutralized with an acid to form cellulose microparticles.

[0059] (4) The cellulose microparticles are separated from the mother liquor obtained in the above (3), and if necessary, washed and dried.

[0060] Viscose fiber is the raw material of cellulose. Viscose fibers with a γ value of 30 to 100% by mass and an alkali concentration of 4 to 10% by mass are preferably used. As the above water-soluble anionic polymer, sodium polyacrylate, sodium polystyrene sulfonate, etc. can be mentioned. The above calcium carbonate is used to prevent the aggregation of viscose fiber microparticles in the dispersion and make the particle size of the cellulose particles smaller. As the calcium carbonate slurry, TamaPearl TP-221GS sold by Okutama Kogyo Co., Ltd. in Japan can be mentioned.

[0061] According to one embodiment, (a) the cellulose particles may or may not include a cellulose derivative. The cellulose derivative may be selected from cellulose esters and ethers.

[0062] It is shown that the term "cellulose ester" in the context of this text refers to a polymer composed of an α(1-4) sequence of partially or fully esterified anhydroglucose rings, the esterification being obtained by reaction of all or only some of the free hydroxyl functional groups of said anhydroglucose rings with a straight-chain or branched carboxylic acid or carboxylic acid derivative (acyl chloride or acid anhydride) containing 1-4 carbon atoms.

[0063] Preferably, the cellulose ester is produced by reaction of some of the free hydroxyl functional groups of the ring with a carboxylic acid containing 1 to 4 carbon atoms.

[0064] Advantageously, the cellulose ester is selected from cellulose acetate, cellulose propionate, cellulose butyrate, cellulose isobutyrate, cellulose acetate butyrate, and cellulose levulinate, and mixtures thereof.

[0065] These cellulose esters may have a weight-average molecular weight of from 3,000 to 1,000,000, preferably from 10,000 to 500,000, and more preferably from 15,000 to 300,000.

[0066] In the context of this text, the term "cellulose ether" refers to a polymer composed of an α(1-4) sequence of partially etherified anhydroglucose rings, some of the free hydroxyl functional groups of said rings being replaced by the group -OR, where R is preferably a straight-chain or branched alkyl group containing 1-4 carbon atoms.

[0067] Thus, the cellulose ether is preferably selected from cellulose alkyl ethers having an alkyl group containing 1-4 carbon atoms, such as cellulose methyl, propyl, isopropyl, butyl, and isobutyl ethers.

[0068] The weight-average molecular weight of these cellulose ethers may be from 3,000 to 1,000,000, preferably from 10,000 to 500,000, and more preferably from 15,000 to 300,000.

[0069] As (a) the cellulose particles for use in the present invention, there may be mentioned, for example, the following spherical cellulose particles sold by Daito Kasei in Japan: Cellulose beads USF (the wet point for oil is 296.0 ml / 100 g, the wet point for water is 400.8 ml / 100 g, and the ratio of the wet point for water to the wet point for oil is 1.4), having an average particle size of 4 μm; Cellulose beads USF-X (the maximum wet point for oil is 80 ml / 100 g, the wet point for water is 250 ml / 100 g, and the ratio of the wet point for water to the wet point for oil is 3.1 or less), having an average particle size of 3-5 μm; Cellulose beads D-5 (the maximum wet point for oil is 70 ml / 100 g, the wet point for water is 150 ml / 100 g, and the ratio of the wet point for water to the wet point for oil is 2.1 or less); having an average particle size of 8 - 10 μm, and cellulose beads D-10 (the maximum wet point for oil is 60 ml / 100 g, the wet point for water is 140 ml / 100 g, and the ratio of the wet point for water to the wet point for oil is 2.3 or less); having an average particle size of 12 - 15 μm.

[0070] The (a) cellulose particles for use in the present invention may be pre-coated or not.

[0071] In a specific embodiment, the (a) cellulose particles are initially coated. There is no limitation on the material of the original coating of the particles, but organic materials such as mono- or dicarboxylic acids or their salts, amino acids, N-acyl amino acids, acyl amides, silicones, and modified silicones may be preferred. As organic materials, potassium succinate, lauroyl lysine, and acryloyl-modified silicone may be mentioned.

[0072] In other words, the (a) cellulose particles for use in the present invention may be surface-treated. As examples of surface treatment, the following may be mentioned: (1) Treatment with fluorine-based compounds, such as treatment with perfluoroalkyl phosphate / salt, perfluoroalkyl silane, perfluoropolyether, fluorosilicone, and fluorinated silicone resin (2) Silicone treatment, such as treatment with methylhydrogenpolysiloxane, dimethylpolysiloxane, and tetramethyltetrahydrocyclotetrasiloxane in the gas phase (3) After gas-phase silicone treatment, side-chain treatment, such as treatment with addition of an alkyl chain or the like (4) Treatment with a silane coupling agent (5) Treatment with a titanium coupling agent (6) Treatment with an aluminum coupling agent (7) Treatment with an oil agent (8) Treatment with N-acetylated lysine (9) Treatment with polyacrylic acid (10) Treatment with metal soaps, such as those treated with stearate or myristate (11) Treatment with an acrylic resin (12) Treatment with a metal oxide Multiple surface treatments may be carried out in combination with the above treatments.

[0073] The amount of the (a) one or more cellulose particles in the composition according to the present invention may be 0.1 wt% or more, preferably 0.5 wt% or more, and more preferably 1 wt% or more, based on the total weight of the composition.

[0074] Based on the total weight of the composition, the amount of (a) one or more cellulose particles in the composition according to the present invention may be 20% by weight or less, preferably 15% by weight or less, and more preferably 10% by weight or less.

[0075] Based on the total weight of the composition, the amount of (a) one or more cellulose particles in the composition according to the present invention may be from 0.1% to 20% by weight, preferably from 0.5% to 15% by weight, and more preferably from 1% to 10% by weight.

[0076] [Associative polymer] The composition according to the present invention comprises (b) at least one associative polymer comprising one or more acrylic and / or methacrylic acid units. If two or more such associative polymers are used, they may be the same or different.

[0077] (b) The associative polymer may act as a thickener.

[0078] For the purposes of the present invention, the term "associative polymer" refers to a homopolymer or copolymer capable of reversibly binding to each other or to other molecules in an aqueous medium.

[0079] The (b) associative polymer used in the present invention is preferably an associative copolymer of one or more acrylic and / or methacrylic acid units and other units.

[0080] More particularly, the (b) associative polymer comprises at least one hydrophilic moiety and at least one hydrophobic moiety. For the purposes of the present invention, the term "hydrophobic group" refers to a group or polymer having a saturated or unsaturated, straight-chain or branched-chain hydrocarbon-based chain containing at least 10 carbon atoms, preferably from 10 to 30 carbon atoms, especially from 12 to 30 carbon atoms, and more preferably from 16 to 30 carbon atoms.

[0081] For the purposes of the present invention, the (b) associative polymer comprising one or more acrylic and / or methacrylic acid units means that the polymer comprises at least one acrylic acid unit or at least one methacrylic acid unit or a mixture thereof. The (b) associative polymer may comprise other units, such as units formed from alkyl esters of acrylic acid or methacrylic acid, preferably alkyl esters of acrylic acid, which contain less than 6 carbon atoms: for example C1-C4 alkyl acrylates, such as methyl acrylate, ethyl acrylate and butyl acrylate, hereinafter referred to as "simple esters".

[0082] In a preferred embodiment of the present invention, the (b) associative polymer used in the present invention comprises one or more (meth)acrylic acid (C1-C 12 ) alkyl ester units, more preferably one or more (meth)acrylic acid (C1-C6) alkyl ester units.

[0083] According to one specific embodiment, the (b) associative polymer for use in the present invention comprises one or more acrylic acid units. According to a further embodiment, the (b) associative polymer for use in the present invention comprises one or more methacrylic acid units. According to another embodiment, the (b) associative polymer for use in the present invention comprises one or more acrylic acid units and one or more methacrylic acid units.

[0084] In one specific embodiment, the (b) associative polymer may comprise another unit derived from another monomer different from (meth)acrylic acid. For example, such a monomer may be an ethylenically unsaturated hydrophilic monomer such as an ester of (meth)acrylic acid or itaconic acid with a polyoxyalkylenated fatty alcohol. Preferably, the fatty alcohol moiety of the ester monomer may be straight-chain or branched, preferably straight-chain, saturated or unsaturated, preferably saturated, (C 12 -C 30 ) fatty alcohol, and particularly (C 16 -C 26 ) fatty alcohol. The polyoxyalkylene chain of the ester monomer preferably consists of ethylene oxide units and / or propylene oxide units, and even more particularly consists of ethylene oxide units. The number of oxyalkylene units is generally from 3 to 100, preferably from 7 to 50, and more preferably from 12 to 30.

[0085] As an example of the (b) associative polymer, mention may be made, for example, of the product sold by LUBRIZOL under the trade name NOVETHIX L-10 (INCI name: Acrylates / Behenyl Alcohol Polyether-25 Methacrylate Copolymer), the product sold by DOW CHEMICAL under the trade name 28 (INCI name: Acrylates / Behenyl Alcohol Polyether-25 Methacrylate Copolymer), the product sold by DOW CHEMICAL under the trade name 22 (INCI name: Acrylates / Stearyl Alcohol Polyether-20 Methacrylate Copolymer), the product sold by DOW CHEMICAL under the trade name 88 (INCI name: Acrylates / Stearyl Alcohol Polyether-20 Methacrylate Copolymer), the product sold by DOW CHEMICAL under the trade name 2001 (INCI name: Acrylates / Stearyl Alcohol Polyether-20 Itaconate Copolymer) sold by AKZO NOBEL.

[0086] The (b) associative polymer that can be used in the present invention may also be selected from anionic associative (co)polymers containing acrylic acid-based and / or methacrylic acid-based units.

[0087] The (meth)acrylic acid-based anionic associative (co)polymers useful in the present invention may be selected from those comprising at least one hydrophilic unit (of an unsaturated olefinic carboxylic acid) and at least one hydrophobic unit (such as an alkyl ester of an unsaturated carboxylic acid). 10 -C 30 ) alkyl esters).

[0088] More particularly, these (meth)acrylic acid-based associative (co)polymers are preferably selected from those monomers in which the hydrophilic unit of the unsaturated olefinic carboxylic acid type corresponds to the following formula (I): wherein R 1 represents H or CH3, i.e., an acrylic acid or methacrylic acid unit, and in which the hydrophobic unit of the (C 10 -C 30 ) alkyl ester of the unsaturated carboxylic acid type corresponds to the monomer of the following formula (I): wherein R 1 represents H or CH3 (i.e., an acrylate or methacrylate unit), R 2 represents C 10 -C 30 and preferably C 12 -C 22 alkyl.

[0089] As the (C 10 -C 30 ) alkyl ester of the unsaturated carboxylic acid according to formula (I), more particularly, lauryl acrylate, stearyl acrylate, decyl acrylate, isodecyl acrylate, and dodecyl acrylate, and the corresponding methacrylates, lauryl methacrylate, stearyl methacrylate, decyl methacrylate, isodecyl methacrylate, and dodecyl methacrylate may be mentioned.

[0090] This type of (meth)acrylic acid-based associative (co)polymer has been described and prepared, for example, according to patents US 3915921 and US4509949.

[0091] The (meth)acrylic acid-based associative (co)polymers useful in the present invention may be more specifically represented by polymers formed from a monomer mixture comprising: (i) acrylic acid and one or more esters of the following formula (III): wherein R 3 represents H or CH3, R 4represents an alkyl group having 12 to 22 carbon atoms, and optionally a crosslinking agent, such as those composed of 95% to 60% by weight of acrylic acid (hydrophilic unit), 4% to 40% by weight of acrylic acid C 10 -C 30 alkyl esters (hydrophobic unit) and 0 to 6% by weight of crosslinkable polymerizable monomers, or those composed of 98% to 96% by weight of acrylic acid (hydrophilic unit), 1% to 4% by weight of acrylic acid C 10 -C 30 alkyl esters (hydrophobic unit) and 0.1% to 0.6% by weight of crosslinkable polymerizable monomers; or (ii) substantially acrylic acid and lauryl methacrylate, such as the product formed from 66% by weight of acrylic acid and 34% by weight of lauryl methacrylate.

[0092] For these embodiments of the present invention, the term "crosslinking agent" may represent a monomer containing the following groups and at least one other polymerizable group, and the unsaturated bonds of the monomers are not conjugated to each other. As crosslinking agents that can be used in the present invention, polyallyl ethers can be particularly mentioned, especially polyallyl sucrose and polyallyl pentaerythritol.

[0093] Among the above-mentioned (meth)acrylic acid associative (co)polymers, those particularly preferred for the present invention are the products sold by Goodrich under the trade names Pemulen TR1, Pemulen TR2, Carbopol 1382, and more preferably Pemulen TR1, and the product sold by S.E.P.C. under the name Coatex SX.

[0094] As (meth)acrylic acid associative (co)polymers, mention may also be made of copolymers of methacrylic acid / methyl acrylate / ethoxylated alcohol dimethyl - m - isopropenylbenzyl isocyanate, sold by Amerchol under the name Viscophobe DB1000.

[0095] Other (meth)acrylic acid associative (co)polymers that can be used in the present invention may also be sulfonic acid polymers containing at least one (meth)acrylic acid monomer having one or more sulfonic acid groups, in free form or in partially or fully neutralized form, and containing at least one hydrophobic moiety.

[0096] The hydrophobic moiety present in the sulfonic acid polymers that can be used in the present invention preferably contains 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and even more particularly 12 to 18 carbon atoms.

[0097] Preferably, these sulfonic acid polymers useful in the present invention are partially or completely neutralized with an inorganic base (sodium hydroxide, potassium hydroxide or ammonia) or an organic base such as mono-, di- or triethanolamine, aminomethylpropanediol, N-methylglucosamine, basic amino acids such as arginine and lysine, and mixtures of these compounds.

[0098] These sulfonic acid polymers generally have a number average molecular weight of 1,000 - 20,000,000 g / mol, preferably 20,000 - 5,000,000 g / mol, and even more preferably 100,000 - 1,500,000 g / mol.

[0099] The sulfonic acid polymers useful in the present invention may or may not be crosslinked. Crosslinked polymers are preferably selected.

[0100] When they are crosslinked, the crosslinking agent may be selected from polyethylenically unsaturated compounds commonly used for crosslinking polymers obtained by free radical polymerization. Mention may be made, for example, of divinylbenzene, diallyl ether, dipropylene glycol diallyl ether, polyglycol diallyl ether, triethylene glycol divinyl ether, hydroquinone diallyl ether, ethylene glycol diacrylate di(meth)acrylate or tetraethylene glycol diacrylate di(meth)acrylate, trimethylolpropane triacrylate, methylene bisacrylamide, methylene bismethacrylamide, triallylamine, triallyl cyanurate, diallyl maleate, tetraallylethylenediamine, tetraallyloxyethane, trimethylolpropane diallyl ether, allyl (meth)acrylate, allyl ethers of sugarseries alcohols or other allyl or vinyl ethers of polyfunctional alcohols, and allyl esters of phosphoric acid and / or vinylphosphonic acid derivatives, or mixtures of these compounds.

[0101] Methylene bisacrylamide, allyl methacrylate or trimethylolpropane triacrylate (TMPTA) are used more particularly.

[0102] The degree of crosslinking will generally be 0.01 - 10 mol%, and more particularly 0.2 - 2 mol%, relative to the polymer.

[0103] The (meth)acrylic acid monomers bearing one or more sulfonic acid groups of the sulfonic acid polymers useful in the present invention are particularly selected from (meth)acrylamido(C1-C 22 )alkylsulfonic acids and N-(C1-C 22 )alkyl(meth)acrylamido(C1-C 22 )alkylsulfonic acids, such as undecylacrylamidomethanesulfonic acid, and their partially or completely neutralized forms.

[0104] More preferably, (meth)acrylamido(C1-C 22Alkylsulfonic acids, such as acrylamidomethylsulfonic acid, acrylamidoethylsulfonic acid, acrylamidopropylsulfonic acid, 2-acrylamido-2-methylpropane sulfonic acid, methacrylamido-2-methylpropane sulfonic acid, 2-acrylamido-n-butanesulfonic acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-methacrylamidododecanesulfonic acid or 2-acrylamido-2,6-dimethyl-3-heptanesulfonic acid, and partially or fully neutralized forms thereof. Even more particularly, 2-acrylamido-2-methylpropane sulfonic acid (AMPS) and partially or fully neutralized forms thereof will be used.

[0105] The (meth)acrylic associative thickeners useful in the present invention are especially optionally selected from random amphiphilic AMPS polymers modified by reaction with C6-C 22 n-monoalkylamines or C6-C 22 di-n-alkylamines, such as those described in patent application WO 00 / 31154 (which forms part of the specification).

[0106] These polymers may also contain other ethylenically unsaturated hydrophilic monomers selected from, for example, (meth)acrylic acid, its β-substituted alkyl derivatives or esters obtained therefrom with a monohydric alcohol or mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid or maleic acid, or mixtures of these compounds.

[0107] The (meth)acrylic associative thickeners bearing one or more sulfonic acid groups which may be particularly preferably used in the present invention are preferably selected from amphiphilic copolymers of AMPS and at least one ethylenically unsaturated hydrophobic monomer which comprises at least one hydrophobic moiety containing 8-50 carbon atoms, more preferably 8-22 carbon atoms, even more preferably 8-18 carbon atoms, and very particularly 12-18 carbon atoms.

[0108] These same copolymers may also contain one or more ethylenically unsaturated monomers not containing a fatty chain, such as (meth)acrylic acid, its β-substituted alkyl derivatives or esters obtained therefrom with a monohydric alcohol or mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid or maleic acid, or mixtures of these compounds.

[0109] These copolymers are particularly described in patent application EP-A-750899, patent US 5089578 and the following publication by Yotaro Morishima: -Self-assembling amphiphilic polyelectrolytes and their nanostructures, Chinese Journal of Polymer Science, Vol.18, No.40, (2000), 323-336; -Micelle formation of random copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and a nonionic surfactant macromonomer in water as studied by fluorescence and dynamic light scattering, Macromolecules, 2000, Vol.33, No.10 - 3694-3704; -Solution properties of micelle networks formed by nonionic moieties covalently bound to a polyelectrolyte: salt effects on rheological behavior - Langmuir, 2000, Vol.16, No.12, 5324-5332;-Stimuli responsive amphiphilic copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and associative macromonomers, Polym.Preprint, Div.Polym.Chem.1999, 40(2), 220-221。

[0110] The ethylenically unsaturated hydrophobic monomers of these specific copolymers are preferably selected from acrylates or acrylamides of the following formula (IV): wherein R 5 and R 7 may be the same or different and represent a hydrogen atom or a straight-chain or branched C1-C6 alkyl group (preferably methyl); Y represents O or NH; R 6represents a hydrophobic hydrocarbon-based group containing at least 8 to 50 carbon atoms, more preferably 8 to 22 carbon atoms, even more preferably 6 to 18 carbon atoms, and more particularly 12 to 18 carbon atoms; x represents the molar number of the alkylene oxide and is from 0 to 100.

[0111] group R 6 is preferably selected from linear C6-C 18 alkyl groups (such as n-hexyl, n-octyl, n-decyl, n-hexadecyl, n-dodecyl), or branched or cyclic C6-C 18 alkyl groups (such as cyclododecane (C 12 )) or adamantane (C 10 )); C6-C 18 perfluoroalkyl groups (such as the group of formula –(CH2)2-(CF2)9-CF3); cholesteryl (C 27 ) or cholesteryl ester residues, such as cholesteryloxyhexanoate groups; aromatic polycyclic groups, such as naphthalene or pyrene. Among these groups, linear alkyl groups are more particularly preferred, and n-dodecyl is even more particularly preferred.

[0112] In a particularly preferred form according to the invention, the monomer of formula (IV) contains at least one alkylene oxide unit (x≥1) and preferably a polyalkylene oxide chain. The polyalkylene oxide chain is preferably composed of ethylene oxide units and / or propylene oxide units, and even more particularly of ethylene oxide units. The number of alkylene oxide units is generally from 3 to 100, more preferably from 3 to 50, and still more preferably from 7 to 25.

[0113] Among these polymers, mention may be made of: - Copolymers, which may be crosslinked or non-crosslinked, and which may be neutralized or non-neutralized, containing 15 - 60% by weight of AMPS units and 40 - 85% by weight of (C8-C 16 ) alkyl(meth)acrylamide units or (meth)acrylic acid (C8-C 16 ) alkyl ester units, such as those described in patent application EP-A-750899; - Terpolymers, which contain 10 - 90 mol% of acrylamide units, 0.1 - 10 mol% of AMPS units and 5 - 80 mol% of n-(C6-C 18 ) alkylacrylamide units, such as those described in patent US-5089578.

[0114] Also mention may be made of copolymers of fully neutralized AMPS and dodecyl methacrylate, and crosslinked and non-crosslinked copolymers of AMPS and n-dodecylmethacrylamide, such as those described in the above-mentioned Morishima article.

[0115] Polymers composed of 2 - acrylamido - 2 - methylpropanesulfonic acid (AMPS) units of the following formula (V) will be mentioned: where X + is a proton, an alkali metal cation, an alkaline earth metal cation or an ammonium ion; and units of the following formula (IV): where x represents an integer from 3 to 100, preferably from 5 to 80, and more preferably from 7 to 25; R 5 has the same meaning as shown in formula (IV) above, R 8 represents a straight - chain or branched C6 - C 22 alkyl group, and more preferably C 10 -C 22 alkyl group.

[0116] Preferred polymers are those in which x = 25, R 5 represents methyl and R 8 represents n - dodecyl; they are described in the article by Morishima mentioned above.

[0117] Furthermore, in formula (IV), the following monomers are particularly preferably used, where x = 20 to 25, R 5 represents methyl and R 8 represents C 12 -C 24 alkyl group, preferably, for example, lauryl, myristyl, palmityl, stearyl or behenyl. Particularly preferably used are the following monomers of formula (IV), where x = 20 to 25, R 5 represents methyl and R 8 represents C 16 -C 24 alkyl chain, such as stearyl or behenyl.

[0118] Polymers in which X + represents sodium or ammonium are even more particularly preferred.

[0119] Relative to the total weight of the composition, the amount of (b) one or more associative polymers in the composition according to the invention can be 0.01 wt% or more, preferably 0.05 wt% or more, and more preferably 0.1 wt% or more.

[0120] Relative to the total weight of the composition, the amount of (b) one or more associative polymers in the composition according to the invention can be 10 wt% or less, preferably 5 wt% or less, and more preferably 1 wt% or less.

[0121] Based on the total weight of the composition, the amount of (b) one or more associative polymers in the composition according to the invention can be from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 1% by weight.

[0122] [Water] The composition according to the invention comprises (c) water.

[0123] Based on the total weight of the composition, the amount of (c) water in the composition according to the invention can be 25% by weight or more, preferably 30% by weight or more, and more preferably 35% by weight or more.

[0124] On the other hand, based on the total weight of the composition, the amount of (c) water in the composition according to the invention can be 95% by weight or less, preferably 90% by weight or less, and more preferably 85% by weight or less.

[0125] Based on the total weight of the composition, the amount of (c) water in the composition according to the invention can be from 25% to 95% by weight, preferably from 30% to 90% by weight, more preferably from 35% to 85% by weight.

[0126] [Lipophilic organic UV filter] The composition according to the invention may comprise (d) at least one lipophilic organic UV filter. A single type of lipophilic organic UV filter can be used, but two or more different types of lipophilic organic UV filters can be used in combination.

[0127] The term "lipophilic organic UV filter" refers to an organic molecule that is capable of shielding UV radiation (preferably between 290 and 400 nm) and that can be dissolved or dispersed in a fatty phase, which includes fatty substances such as oils, in order to obtain a macroscopically homogeneous phase. The term "organic molecule" refers to any molecule that contains one or more carbon atoms in its structure. Thus, the (d) lipophilic organic UV filter used in the present invention can be active in the UV-A and / or UV-B regions.

[0128] (d) The lipophilic organic UV filter can be solid or liquid. The terms "solid" and "liquid" refer respectively to a solid and a liquid at 25 °C and 1 atm.

[0129] (d) The lipophilic organic UV filters can be particularly selected from cinnamic acid derivatives; anthranilic acid esters; salicylic acid derivatives; dibenzoylmethane derivatives, camphor derivatives; benzophenone derivatives; β,β-diphenylacrylate derivatives; triazine derivatives; benzotriazole derivatives; benzylidene malonate derivatives, especially those mentioned in patent US 5624663; imidazolines; p-aminobenzoic acid (PABA) derivatives; benzoxazole derivatives as described in patent applications EP 0832642, EP 1027883, EP 1300137 and DE 10162844; sieving polymers and sieving silicones, such as those described especially in patent application WO 93 / 04665; dimers based on α-alkylstyrene, such as those described in patent application DE19855649; 4,4-diarylbutadienes, such as those described in patent applications EP 0967200, DE19746654, DE 19755649, EP-A-1008586, EP 1133980 and EP 133981; merocyanine derivatives, such as those described in patent applications WO 04 / 006878, WO 05 / 058269, WO 06 / 032741, FR 2957249 and FR 2957250; and mixtures thereof.

[0130] As examples of the lipophilic organic UV filters of (d), mention may be made of those hereinafter represented by their INCI: Dibenzoylmethane derivatives: Butyl methoxydibenzoylmethane or avobenzone sold by DSM Nutritional Products under the trade name Parsol 1789, p-Aminobenzoic acid derivatives: Ethyl p-aminobenzoate, Ethylhexyl dihydroxypropyl PABA, Diethylhexyl dimethyl PABA, especially sold by ISP under the name Escalol 507, Salicylic acid derivatives: Homosalate sold by Rona / EM Industries under the name Eusolex HMS, Ethylhexyl salicylate sold by Symrise under the name Neo Heliopan OS, Cinnamic acid derivatives: Ethylhexyl methoxycinnamate, especially sold by DSM Nutritional Products under the trade name Parsol MCX, isopropyl methoxycinnamate, Isoamyl methoxycinnamate, sold by Symrise under the trade name Neo Heliopan E 1000, Cinoxate, Diisopropyl methylcinnamate, β,β-Diphenylacrylate derivatives: Octocrylene, especially sold by BASF under the trade name Uvinul N539; Etocrylene, especially sold by BASF under the trade name Uvinul N35; Benzophenone derivatives: Benzophenone-1, sold by BASF under the trade name Uvinul 400; Benzophenone-2, sold by BASF under the trade name Uvinul D50; Benzophenone-3 or oxybenzone, sold by BASF under the trade name Uvinul M40; Benzophenone-6, sold by Norquay under the trade name Helisorb 11; Benzophenone-8, sold by American Cyanamid under the trade name Spectra-Sorb UV-24; Benzophenone-12; N-Hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, sold by BASF under the trade name Uvinul A+ or in a mixture with octyl methoxycinnamate under the trade name Uvinul A+B; Benzylidene camphor derivatives: 3-Benzylidene camphor, produced by Chimex under the name Mexoryl SD; 4-Methylbenzylidene camphor, sold by Merck under the name Eusolex 6300; Polyacrylamidomethyl benzylidene camphor, produced by Chimex under the name Mexoryl SW; Phenylbenzotriazole derivatives: Methyltriazone, sold by Rhodia Chimie under the name Silatrizole, Triazine derivatives: Bis-(ethylhexyl) methoxyphenyl triazine, sold by BASF under the trade name Tinosorb S; Ethylhexyl triazone, sold by BASF under the trade name Uvinul T150, Diethylhexylbutamidotriazone, sold by Sigma 3V under the trade name Uvasorb HEB, 2,4,6-tris(4'-aminobenzylidene di-neopentyl malonate)-s-triazine, 2,4,6-tris(4'-aminobenzylidene diisobutyl malonate)-s-triazine, 2,4-bis(4'-aminobenzylidene di-neopentyl malonate)-6-(4'-n-butyl aminobenzoate)-s-triazine, - Triazine silicones substituted by two aminobenzoate groups, such as those described in EP0841341, in particular 2,4-bis-(4'-aminobenzylidene n-butyl malonate)-6-[(3-{1,3,3,3-tetramethyl-1-[(trimethylsilyloxy]disiloxanyl}propyl)amino]-s-triazine, Anthranilic acid derivatives: Menthol anthranilate, sold by Symrise under the trade name Neo Heliopan MA; Imidazoline derivatives: Ethylhexyl dimethoxy benzylidene dioxo imidazoline propionate; Benzylidene malonate derivatives: 4'-methoxybenzylidene di-neopentyl malonate; Polyorganosiloxanes containing benzylidene malonate functional groups, such as the polysiloxane-15 sold by DSM under the trade name Parsol SLX; 4,4-diarylbutadiene derivatives: 1,1-diformic acid (2,2'-dimethylpropyl)-4,4-diphenylbutadiene; Lipophilic merocyanine derivatives: - Octyl 5-N,N-diethylamino-2-benzoyl-2,4-pentadienoate; And mixtures thereof.

[0131] Preferably, (d) the lipophilic organic UV filter is selected from: Butyl methoxydibenzoylmethane, Ethylhexyl methoxycinnamate, Homosalate, Homosalate, Butyl methoxydibenzoylmethane, Octocrylene, Benzophenone-3, n-Hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, 4-Methylbenzylidene camphor, Bis(ethylhexyl oxy-phenol) methoxyphenyl triazine, Ethylhexyl triazone, Diethylhexylbutamidotriazone, 2,4-bis-(n-butyl 4'-aminobenzylidene malonate)-6-[(3-{1,3,3,3-tetramethyl-1-[(trimethylsilyloxy]-disiloxanyl}propyl)amino]-s-triazine, Drometrizole trisiloxane, Silicone-15, 1,1-diformic acid (2,2'-dimethylpropyl)-4,4-diphenylbutadiene, and their mixtures.

[0132] More preferably, (d) the lipophilic organic UV filter may be selected from: Butyl methoxydibenzoylmethane, Ethylhexyl methoxycinnamate, Octocrylene, Ethylhexyl salicylate, n-Hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, Bis(ethylhexyloxyphenol)methoxyphenyl triazine, 2,4-bis-(n-butyl 4'-aminobenzylidene malonate)-6-[(3-{1,3,3,3-tetramethyl-1-[(trimethylsilyloxy]-disiloxanyl}propyl)amino]-s-triazine, Ethylhexyl triazone, Diethylhexylbutamidotriazone, Drometrizole trisiloxane, and their mixtures.

[0133] In one embodiment, the composition according to the present invention may preferably comprise at least one selected from the following as (d) the lipophilic organic UV filter: drometrizole trisiloxane, bis(ethylhexyloxyphenol)methoxyphenyl triazine, ethylhexyl triazone, hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, butyl methoxydibenzoylmethane, ethylhexyl methoxycinnamate, ethylhexyl salicylate, octocrylene, homosalate, and their mixtures.

[0134] The amount of (d) one or more lipophilic organic UV filters in the composition according to the present invention may be 1% by weight or more, preferably 3% by weight or more, and more preferably 5% by weight or more based on the total weight of the composition.

[0135] On the other hand, the content of (d) one or more lipophilic organic UV filters in the composition according to the present invention may be 30% or less, preferably 25% or less, and more preferably 10% or less based on the total weight of the composition.

[0136] In the composition according to the invention, the amount of (d) one or more lipophilic organic UV filters may be from 1% to 30% by weight, preferably from 3% to 25% by weight, and more preferably from 5% to 20% by weight, relative to the total weight of the composition.

[0137] [Oil] The composition according to the invention may comprise (e) at least one oil. If two or more oils are used, they may be the same or different.

[0138] (e) The oil is different from (d) the lipophilic organic UV filter.

[0139] Herein, "oil" refers to a fatty compound or substance which is in liquid or paste (non-solid) form at room temperature (25 °C) and at atmospheric pressure (760 mmHg). As the oil, those commonly used in beauty can be used alone or in combination. These oils can be volatile or non-volatile.

[0140] (e) The oil can be a non-polar oil such as a hydrocarbon oil, a silicone oil, etc.; a polar oil such as a vegetable or animal oil, and an ester oil or an ether oil; or a mixture thereof.

[0141] (e) The oil can be selected from oils of plant or animal origin, synthetic oils, silicone oils, hydrocarbon oils and fatty alcohols.

[0142] As examples of vegetable oils, mention may be made, for example, of linseed oil, camellia seed oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, camellia oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil and mixtures thereof.

[0143] As examples of animal oils, mention may be made, for example, of squalene and squalane.

[0144] As examples of synthetic oils, mention may be made of alkane oils such as isododecane and isocetane, ester oils, ether oils and synthetic triglycerides.

[0145] Ester oils are preferably saturated or unsaturated, straight-chain or branched C1-C 26 aliphatic monocarboxylic or polycarboxylic acids with saturated or unsaturated, straight-chain or branched C1-C 26 aliphatic monohydric or polyhydric alcohols, the total number of carbon atoms of the ester being greater than or equal to 10.

[0146] Preferably, for esters of monohydric alcohols, at least one of the alcohol and the acid from which the ester is derived is branched.

[0147] Among the monoesters of monocarboxylic acids and monohydric alcohols, mention may be made of ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate and isostearyl neopentanoate.

[0148] Esters of C4-C 22 dicarboxylic or tricarboxylic acids with C1-C 22 alcohols and esters of monocarboxylic, dicarboxylic or tricarboxylic acids with non-sugar C4-C 26 dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy alcohols.

[0149] Mention may be made in particular of: diethyl sebacate; isopropyl lauroylsarcosinate; diisopropyl sebacate; bis(2-ethylhexyl) sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; bis(2-ethylhexyl) adipate; diisostearyl adipate; bis(2-ethylhexyl) maleate; triisopropyl citrate; triisocetyl citrate; triisostearyl citrate; trilactin; trioctanoin; tris(octyldodecyl) citrate; trioleyl citrate; neopentyl glycol diheptanoate; diethylene glycol diisononanoate.

[0150] As the ester oil, C6-C 30 fatty acids and preferably C 12 -C 22 sugar esters and diesters of fatty acids may be used. Recall that the term "sugar" refers to an oxygen-containing hydrocarbon-based compound containing several alcohol functions, with or without aldehyde or ketone functions, and containing at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides or polysaccharides.

[0151] Examples of suitable sugars that may be mentioned include sucrose (or saccharose), glucose, galactose, ribose, trehalose, maltose, fructose, mannose, arabinose, xylose and lactose, and their derivatives, especially alkyl derivatives such as methyl derivatives, for example methyl glucose.

[0152] The sugar esters of fatty acids may in particular be selected from the esters or ester mixtures of the sugars previously described with linear or branched, saturated or unsaturated C6-C 30 fatty acids and preferably C 12 -C 22 fatty acids. If they are unsaturated, these compounds may have one to three conjugated or non-conjugated carbon-carbon double bonds.

[0153] The esters according to this variant may also be selected from monoesters, diesters, triesters, tetraesters and polyesters, and their mixtures.

[0154] These esters can be, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates and arachidonates or mixtures thereof, in particular, for example, mixed esters of oleopalmitate, oleostearate and palmitostearate, and pentaerythritol tetraethylhexanoate.

[0155] More particularly, monoesters and diesters are used, and especially sucrose, glucose or methylglucose monooleate or dioleate, stearate, behenate, oleopalmitate, linoleate, linolenate and oleostearate.

[0156] One example that may be mentioned is the product sold by the company Amerchol under the name DO, which is methylglucose dioleate.

[0157] As examples of preferred ester oils, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl caproate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl octanoate / caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroylsarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, triglyceride (2-ethylhexanoate), pentaerythritol tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate and mixtures thereof can be mentioned.

[0158] As examples of artificial triglycerides, for example, capryloylcaprylglyceride, trimyristin, tripalmitin, trilinolenin, trilaurin, tricaprin, trioctanoin, tri(caprate / caprylate) glyceride and tri(caprate / caprylate / linolenate) glyceride can be mentioned.

[0159] As examples of silicone oils, for example, linear organopolysiloxanes such as polydimethylsiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, etc.; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.; and mixtures thereof can be mentioned.

[0160] Preferably, the silicone oil is selected from liquid polydialkylsiloxanes, especially liquid polydimethylsiloxane (PDMS) and liquid polyorganosiloxanes containing at least one aryl group.

[0161] These silicone oils can also be organically modified. The organically modified silicones that can be used in the present invention are silicone oils as defined above and contain one or more organic functional groups connected via hydrocarbon-based groups in their structures.

[0162] Organopolysiloxanes are more particularly defined in Walter Noll's Chemistry and Technology of Silicones (1968), Academic Press. They can be volatile or non-volatile.

[0163] When they are volatile, the silicones are more particularly selected from those having a boiling point of from 60 °C to 260 °C, and even more particularly from: (i) Cyclic polydialkylsiloxanes containing from 3 to 7 and preferably from 4 to 5 silicon atoms. These are for example octamethylcyclotetrasiloxane sold by Union Carbide under the name Volatile 7207 or by Rhodia under the name 70045V2, decamethylcyclopentasiloxane sold by Union Carbide under the name Volatile 7158, by Rhodia under the name 70045V5, and dodecamethylcyclohexasiloxane sold by Momentive Performance Materials under the name Silsoft 1217, and mixtures thereof. Mention may also be made of co-copolymers (such as of the dimethylsiloxane / methylalkylsiloxane type), such as Silicone FZ3109 sold by the company Union Carbide, having the formula: Mention may also be made of mixtures of cyclic polydialkylsiloxanes with organosilicon compounds, such as the mixture of octamethylcyclotetrasiloxane and tetrakis(trimethylsilyl)pentaerythritol (50 / 50), and the mixture of octamethylcyclotetrasiloxane and oxy-1,1'-bis(2,2,2',2',3,3'-hexatrimethylsilyloxy)neopentane; and (ii) Linear volatile polydialkylsiloxanes containing from 2 to 9 silicon atoms and having a viscosity at 25 °C of less than or equal to 5×10 -6 m 2 / s. An example is decamethyltetrasiloxane sold in particular by the company Toray Silicone under the name SH200. Silicones belonging to this class are also described in the article published in Cosmetics and Toiletries, Volume 91, January 76, pages 27 - 32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicones is measured at 25 °C in accordance with ASTM standard 445 appendix C.

[0164] Non-volatile polydialkylsiloxanes can also be used. These non-volatile silicones are more particularly selected from polydialkylsiloxanes, among which polydimethylsiloxanes containing trimethylsilyl end groups can be mainly mentioned.

[0165] Among these polydialkylsiloxanes, the following commercial products can be mentioned in a non-limiting way: - Oils of series 47 and 70047 sold by Rhodia or oils, such as oil 70047V500000; - Oils of series sold by the company Rhodia; - Oils of series 200 from the company Dow Corning, such as DC200 with a viscosity of 60,000 mm 2 / s; and - Oils from General Electric and certain oils of series SF from General Electric (SF 96, SF18). Oils and certain oils of series SF from General Electric (SF 96, SF18).

[0166] Polydimethylsiloxanes containing dimethylsilanol end groups, known under the name polydimethylsiloxanol (CTFA), such as oils of series 48 from the company Rhodia, can also be mentioned.

[0167] Among the silicones containing aryl groups, polydiarylsiloxanes can be mentioned, in particular polydiphenylsiloxanes and polyalkylarylsiloxanes, such as phenyl silicone oils.

[0168] The phenyl silicone oil can be selected from phenyl silicones of the following formula: where R1 to R 10 are independently of each other saturated or unsaturated straight-chain, cyclic or branched C1-C 30 hydrocarbon-based groups, preferably C1-C 12 hydrocarbon-based groups, and more preferably C1-C6 hydrocarbon-based groups, especially methyl, ethyl, propyl or butyl, and m, n, p and q are independently of each other integers from 0 to 900 (including the endpoints), preferably from 0 to 500 (including the endpoints) and more preferably from 0 to 100 (including the endpoints), with the proviso that the sum of n + m + q is not zero.

[0169] Examples that can be mentioned include products sold under the following names: - Oils of series 70641 from Rhodia - Oils of series from Rhodia; - From Rhodia Oils of the 70633 and 763 series; - Oil Dow Corning 556 Cosmetic Grade Fluid from Dow Corning; - Silicones of the PK series from Bayer, such as product PK20; - Certain oils of the SF series from General Electric, such as SF 1023, SF 1154, SF 1250 and SF 1265.

[0170] As phenyl silicone oil, phenyl trimethylsiloxane (in the above formula, R1 to R 10 are methyl; p, q and n = 0; m = 1) is preferred.

[0171] Hydrocarbon oils can be selected from: - Straight-chain or branched-chain, optionally cyclic, C5-C 19 alkanes. Examples that may be mentioned include hexane, undecane, dodecane, tridecane and isoparaffins, such as isocetane, isododecane and isodecane; and - Straight-chain or branched-chain hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petrolatum, polydecene and hydrogenated polyisobutene such as and squalane.

[0172] As preferred examples of hydrocarbon oils, for example, straight-chain or branched-chain hydrocarbons such as isocetane, isododecane, squalane, mineral oil (such as liquid paraffin), paraffin wax, petrolatum or petrolatum, naphthalene, etc.; hydrogenated polyisobutene, isoeicosane and decene / butene copolymer; and mixtures thereof.

[0173] The term "fatty" in fatty alcohols means containing a relatively large number of carbon atoms. Thus, alcohols having 4 or more, preferably 6 or more, and more preferably 12 or more carbon atoms are included within the scope of fatty alcohols. Fatty alcohols can be saturated or unsaturated. Fatty alcohols can be straight-chain or branched-chain.

[0174] Fatty alcohols can have the structure R-OH, where R is selected from saturated and unsaturated, straight-chain and branched-chain groups containing 4 to 40 carbon atoms, preferably 6 to 30 carbon atoms, and more preferably 12 to 20 carbon atoms. In at least one embodiment, R can be selected from C 12 -C 20 alkyl and C 12 -C 20 alkenyl. R can be or not be substituted by at least one hydroxyl group.

[0175] As examples of fatty alcohols, mention may be made of lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyl decanol, oleyl alcohol, linoleyl alcohol, palmoleyl alcohol, arachidonyl alcohol, brassidyl alcohol, and mixtures thereof.

[0176] Preferably, the fatty alcohol is a saturated fatty alcohol.

[0177] Thus, the fatty alcohol may be selected from straight-chain or branched-chain, saturated or unsaturated C6-C 30 alcohols, preferably straight-chain or branched-chain saturated C6-C 30 alcohols, and more preferably straight-chain or branched-chain saturated C 12 -C 20 alcohols.

[0178] The term "saturated fatty alcohol" as used herein refers to an alcohol having a long aliphatic saturated carbon chain. Preferably, the saturated fatty alcohol is selected from any straight-chain or branched-chain saturated C6-C 30 fatty alcohols. Among the straight-chain or branched-chain saturated C6-C 30 fatty alcohols, straight-chain or branched-chain saturated C 12 -C 20 fatty alcohols may preferably be used. Any straight-chain or branched-chain saturated C 16 -C 20 fatty alcohols may be more preferably used. Branched-chain C 16 -C 20 fatty alcohols may be even more preferably used.

[0179] As examples of saturated fatty alcohols, mention may be made of lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyl decanol, and mixtures thereof. In one embodiment, behenyl alcohol, stearyl alcohol, octyldodecanol, hexyl decanol, or a mixture thereof (such as cetearyl alcohol), and behenyl alcohol may be used as the saturated fatty alcohol.

[0180] According to at least one embodiment, the fatty alcohol used in the composition according to the present invention is preferably selected from cetyl alcohol, octyldodecanol, hexyl decanol, and mixtures thereof.

[0181] It is also preferred that (e) the oil is selected from oils having a molecular weight of less than 600 g / mol.

[0182] Preferably, (e) the oil has a low molecular weight, such as less than 600 g / mol, and is selected from ester oils having one or more short hydrocarbon chains (C1-C12) (e.g., isopropyl lauroyl sarcosinate, isopropyl myristate, isopropyl palmitate, isononyl isononanoate, and ethylhexyl palmitate), silicone oils (e.g., volatile silicone oils, such as cyclohexasiloxane), hydrocarbon oils (e.g., isododecane, isocetane, and squalane), branched-chain and / or unsaturated fatty alcohols (C12 -C 30 ) type oils (e.g., octyldodecanol and oleyl alcohol) and ether oils (e.g., dioctyl ether).

[0183] (e) The oil may be selected from polar oils, preferably ester oils, and more preferably ethylhexyl palmitate, and preferably synthetic triglycerides, and more preferably triglyceride caprylate / caprate.

[0184] The amount of (e) one or more oils in the composition according to the present invention may be 1% by weight or more, preferably 5% by weight or more, and more preferably 10% by weight or more relative to the total weight of the composition.

[0185] On the other hand, the amount of (e) one or more oils in the composition according to the present invention may be 50% by weight or less, preferably 45% by weight or less, and more preferably 40% by weight or less relative to the total weight of the composition.

[0186] The amount of (e) one or more oils in the composition according to the present invention may be 1% by weight to 50% by weight, preferably 5% by weight to 45% by weight, and more preferably 10% by weight to 40% by weight relative to the total weight of the composition.

[0187] [Non-ionic surfactant] The composition according to the present invention may further comprise (f) at least one non-ionic surfactant. A single type of non-ionic surfactant may be used, or two or more different types of non-ionic surfactants may be used in combination.

[0188] (f) The non-ionic surfactant may further enhance the stability of the composition according to the present invention.

[0189] (f) The non-ionic surfactant may be selected from: (1) Surfactants selected from polyglycerol fatty acid esters, polyoxyalkylated alkyl glycerol esters, and polyoxyalkylated fatty ethers; (2) Mixed esters of fatty acids or fatty alcohols, carboxylic acids, and glycerol; (3) Fatty acid esters of sugars and fatty alcohol ethers of sugars; (4) Surfactants selected from fatty esters of sorbitan, oxyalkylated fatty esters of sorbitan, and oxyalkylated fatty esters; (5) Block copolymers of ethylene oxide (A) and propylene oxide (B); (6) Polyoxyethylenated (1-40 EO) and polyoxypropylenated (1-30 PO) alkyl (C 16 -C 30 ) ethers; (7) Silicone surfactants; and (8) Mixtures thereof.

[0190] The surfactant (1) can be a fluid at a temperature of 45 °C or lower.

[0191] The surfactant (1) can in particular be selected from: - polyglycerol fatty acid esters of at least one (preferably one) fatty acid and 2 - 12 glycerols (preferably 2 - 10 glycerols, and more preferably 2 - 8 glycerols), the fatty acid containing at least one saturated or unsaturated, straight-chain or branched C8-C 22 hydrocarbyl group, such as C8-C 22 alkyl or alkenyl group, preferably C8-C 18 alkyl or alkenyl group, and more preferably C8-C 12 alkyl or alkenyl group; - polyoxyethylenated (PEGylated) alkyl glycerol esters, such as polyethylene glycol derivatives of mixtures of monoglycerides, diglycerides and triglycerides of caprylic acid and capric acid (preferably 2 to 30 ethylene oxide units, more preferably 2 to 20 ethylene oxide units, and even more preferably 2 to 10 ethylene oxide units), such as PEG-6 caprylic / capric glycerides, PEG-7 caprylic / capric glycerides and PEG-7 glyceryl cocoate; - polyoxyethylenated fatty ethers of at least one (preferably one) fatty alcohol, the fatty alcohol containing at least one saturated or unsaturated, straight-chain or branched C8-C 22 hydrocarbyl group, such as C8-C 22 alkyl or alkenyl group, preferably C8-C 18 alkyl or alkenyl group, and more preferably C8-C 12 alkyl or alkenyl group, and 2 to 60 ethylene oxide units, preferably 2 to 30 ethylene oxide units, and more preferably 2 to 10 ethylene oxide units; and - mixtures thereof.

[0192] (f) The nonionic surfactant can preferably be a mixture of at least two selected from the above polyglycerol fatty acid esters, polyoxyethylenated alkyl glycerol esters and polyoxyethylenated fatty ethers.

[0193] The polyglycerol fatty acid esters preferably have a polyglycerol moiety derived from 2 to 8 glycerols, more preferably a polyglycerol moiety derived from 2 to 6 glycerols, and even more preferably a polyglycerol moiety derived from 2 to 4 glycerols.

[0194] The polyglycerol fatty acid esters can be selected from monoesters, diesters or triesters of saturated or unsaturated acids, preferably saturated acids, which contain 8 to 22 carbon atoms, preferably 8 to 18 carbon atoms, and more preferably 8 to 12 carbon atoms, such as caprylic acid, capric acid, lauric acid, oleic acid, stearic acid, isostearic acid and myristic acid.

[0195] The polyglycerol fatty acid ester may be selected from PG2 caprate, PG2 dicaprate, PG2 tricaprate, PG2 caprylate, PG2 dicaprylate, PG2 tricaprylate, PG2 laurate, PG2 dilaurate, PG2 trilaurate, PG2 myristate, PG2 dimyristate, PG2 trimyristate, PG2 stearate, PG2 distearate, PG2 tristearate, PG2 isostearate, PG2 diisostearate, PG2 triisostearate, PG2 oleate, PG2 dioleate, PG2 trioleate, PG3 caprate, PG3 dicaprate, PG3 tricaprate, PG3 caprylate, PG3 dicaprylate, PG3 tricaprylate, PG3 laurate, PG3 dilaurate, PG3 trilaurate, PG3 myristate, PG3 dimyristate, PG3 trimyristate, PG3 stearate, PG3 distearate, PG3 tristearate, PG3 isostearate, PG3 diisostearate, PG3 triisostearate, PG3 oleate, PG3 dioleate, PG3 trioleate, PG4 caprate, PG4 dicaprate, PG4 tricaprate, PG4 caprylate, PG4 dicaprylate, PG4 tricaprylate, PG4 laurate, PG4 dilaurate, PG4 trilaurate, PG4 myristate, PG4 dimyristate, PG4 trimyristate, PG4 stearate, PG4 distearate, PG4 tristearate, PG4 isostearate, PG4 diisostearate, PG4 triisostearate, PG4 oleate, PG4 dioleate, PG4 trioleate, PG5 caprate, PG5 dicaprate, PG5 tricaprate, PG5 caprylate, PG5 dicaprylate, PG5 tricaprylate, PG5 laurate, PG5 dilaurate, PG5 trilaurate, PG5 myristate, PG5 dimyristate, PG5 trimyristate, PG5 stearate, PG5 distearate, PG5 tristearate, PG5 isostearate, PG5 diisostearate, PG5 triisostearate, PG5 oleate, PG5 dioleate, PG5 trioleate, PG6 caprate, PG6 dicaprate, PG6 tricaprate, PG6 caprylate, PG6 dicaprylate, PG6 tricaprylate, PG6 laurate, PG6 dilaurate, PG6 trilaurate, PG6 myristate, PG6 dimyristate, PG6 trimyristate, PG6 stearate, PG6 distearate, PG6 tristearate, PG6 isostearate, PG6 diisostearate, PG6 triisostearate, PG6 oleate, PG6 dioleate, PG6 trioleate, PG10 caprate, PG10 dicaprate, PG10 tricaprate, PG10 caprylate, PG10 dicaprylate, PG10 tricaprylate, PG10 laurate, PG10 dilaurate, PG10 trilaurate, PG10 myristate,PG10 dimyristate, PG10 trimyristate, PG10 stearate, PG10 distearate, PG10 tristearate, PG10 isostearate, PG10 diisostearate, PG10 triisostearate, PG10 oleate, PG10 dioleate, and PG10 trioleate.

[0196] Polyoxyalkylated fatty ethers, preferably polyoxyethylated fatty ethers, may contain from 2 to 60 ethylene oxide units, preferably from 2 to 30 ethylene oxide units, and more preferably from 2 to 10 ethylene oxide units. The fatty chain of the ether may be particularly selected from lauryl, behenyl, arachidyl, stearyl, and cetyl units, and mixtures thereof, such as cetearyl. Examples of ethoxylated fatty ethers that may be mentioned include lauryl alcohol ethers containing 2, 3, 4, and 5 ethylene oxide units (CTFA names: laureth-2, laureth-3, laureth-4, and laureth-5, such as products sold by Nikko Chemicals Co., Ltd. under the name Nikkol BL-2, products sold by Nihon Emulsion Co., Ltd. under the name Emalex 703, products sold by Nikko Chemicals Co., Ltd. under the name Nikkol BL-4, and products sold by Nihon Emulsion Co., Ltd. under the name EMALEX 705).

[0197] (2) Mixed esters of fatty acids or fatty alcohols, carboxylic acids, and glycerol that can be used as the above nonionic surfactants, and are particularly preferably selected from: fatty acids or fatty alcohols having an alkyl or alkenyl chain containing 8 to 22 carbon atoms, preferably 8 to 18 carbon atoms, and more preferably 8 to 12 carbon atoms, and mixed esters of α-hydroxy acids and / or succinic acid with glycerol. The α-hydroxy acids may be, for example, citric acid, lactic acid, glycolic acid, or malic acid, and mixtures thereof.

[0198] The alkyl chain of the fatty acid or alcohol from which the mixed esters used in the nanoemulsion of the present invention are derived may be straight-chain or branched-chain, and saturated or unsaturated. They may particularly be chains of stearate, isostearate, linoleate, oleate, behenate, arachidonate, palmitate, myristate, laurate, caprate, isostearate, stearate, linoleate, oleate, behenate, myristate, laurate, or caprylate, and mixtures thereof.

[0199] As examples of the mixed esters that can be used in the nanoemulsions of the present invention, mention may be made of the mixed esters of glycerol with citric acid, lactic acid, linoleic acid and oleic acid sold by Hüls under the name Imwitor 375 (CTFA name: glyceryl citrate / lactate / linoleate / oleate); the mixed esters of succinic acid and isostearyl alcohol with glycerol sold by Hüls under the name Imwitor 780K (CTFA name: isostearyl diglycerol succinate); the mixed esters of citric acid and stearic acid with glycerol sold by Hüls under the name Imwitor 370 (CTFA name: glyceryl stearate citrate); the mixed esters of lactic acid and stearic acid with glycerol sold by Danisco under the name Lactodan B30 or Rylo LA30 (CTFA name: glyceryl stearate lactate).

[0200] (3) Fatty acid esters of sugars that can be used as the above nonionic surfactants, in particular, may be selected from C8-C 22 esters or ester mixtures of fatty acids with sucrose, maltose, glucose or fructose, and C 14 -C 22 esters or mixtures of esters of fatty acids with methylglucose.

[0201] The C8-C 22 or C 14 -C 22 fatty acids forming the fatty units of the esters that can be used in the present invention contain saturated or unsaturated straight-chain alkyl or alkenyl chains, which contain 8 to 22 or 14 to 22 carbon atoms, respectively. The fatty units of the esters are in particular preferably selected from stearates, behenates, arachidonates, palmitates, myristates, laurates, and caprates and mixtures thereof. Stearates are preferably used.

[0202] Examples of esters or ester mixtures of fatty acids with sucrose, maltose, glucose or fructose may include sucrose monostearate, sucrose distearate and sucrose tristearate and mixtures thereof, such as the products sold by Croda under the names Crodesta F50, F70, F110 and F160; and examples of esters or mixtures of esters of fatty acids with methylglucose, which may mention the methylglucose polyglyceryl-3 distearate sold by Goldschmidt under the name Tego-care 450. Glucose or maltose monoesters may also be mentioned, such as methyl hexadecanoyl-6-D-glucoside and hexadecanoyl-6-D-maltoside.

[0203] (3) Fatty alcohol ethers of sugars that can be used as the above nonionic surfactants may be solid at temperatures below or equal to 45 °C, and are in particular preferably selected from C8-C 22Ethers or mixtures of ethers of fatty alcohols with glucose, maltose, sucrose or fructose, and C 14 -C 22 Ethers or ether mixtures of fatty alcohols with methylglucose. These are especially alkyl polyglucosides.

[0204] C8-C of the fatty units of the alcohol forming the ether for use in the nanoemulsions of the present invention 22 or C 14 -C 22 The fatty alcohols contain straight-chain alkyl or alkenyl chains that are saturated or unsaturated and contain 8 to 22 or 14 to 22 carbon atoms, respectively. The fatty units of the ethers are especially optionally selected from decyl, cetyl, behenyl, arachidyl, stearyl, palmitoyl, myristoyl, lauroyl, octyl and cetyl units, and mixtures thereof, such as cetearyl.

[0205] As examples of fatty alcohol ethers of sugars, mention may be made of alkyl polyglucosides, such as decyl glucoside and lauryl glucoside, which are sold, for example, by Henkel under the names Plantaren 2000 and Plantaren 1200, respectively; cetearyl glucoside (optionally sold in the form of a mixture with cetearyl alcohol), such as sold by SEPPIC under the name Montanov68; sold by Goldschmidt under the name Tego-care CG90; and sold by Henkel under the name Emulgade KE3302; and arachidyl glucoside, such as sold by SEPPIC under the name Montanov 202 in the form of a mixture of arachidyl alcohol, behenyl alcohol and arachidyl glucoside.

[0206] More specifically used surfactants are sucrose monostearate, sucrose distearate or sucrose tristearate and mixtures thereof, methyl glucose polyglycerol-3 distearate and alkyl polyglucosides.

[0207] The fatty acid esters of sorbitan and oxyethylenated fatty acid esters of sorbitan that can be used as the above nonionic surfactants are optionally selected from C 16 -C 22 fatty acid esters of sorbitan and oxyethylenated C 16 -C 22 fatty acid esters of sorbitan. They can be formed from at least one fatty acid containing at least one saturated straight-chain alkyl chain (containing 16 to 22 carbon atoms, respectively), and sorbitol or ethoxylated sorbitol. The oxyethylenated esters generally can contain 1 to 100 ethylene glycol units, and preferably 2 to 40 ethylene oxide (EO) units.

[0208] These esters are particularly preferably selected from stearates, behenates, arachidates, palmitates, and mixtures thereof. Stearates and palmitates are preferably used.

[0209] Examples of the nonionic surfactants that can be used in the present invention include sorbitan monostearate (CTFA name: sorbitan stearate) sold by ICI under the name Span 60, sorbitan monopalmitate (CTFA name: sorbitan palmitate) sold by ICI under the name Span 40, and sorbitan tristearate 20EO (CTFA name: polysorbate 65) sold by ICI under the name Tween 65.

[0210] The (4) oxyalkylated fatty esters that can be used as the above nonionic surfactants, preferably ethoxylated fatty esters, may be esters formed from 1 to 100 ethylene oxide units, preferably 2 to 60 ethylene oxide units, and more preferably 2 to 30 ethylene oxide units, and at least one fatty acid chain containing 8 to 22 carbon atoms, preferably 8 to 18 carbon atoms, and more preferably 8 to 12 carbon atoms. The fatty chains in the esters are particularly preferably selected from stearate, behenate, arachidate, and palmitate units, and mixtures thereof. Examples of the ethoxylated fatty esters that can be mentioned are esters of stearic acid containing 40 ethylene oxide units, such as the product sold by ICI under the name Myrj 52 (CTFA name: PEG-40 stearate); and esters of behenic acid containing 8 ethylene oxide units (CTFA name: PEG-8 behenate), such as the product sold by Gattefosse under the name Compritol HD5 ATO.

[0211] The (5) block copolymers of ethylene oxide (A) and propylene oxide (B) that can be used as the above nonionic surfactants are particularly preferably selected from the block copolymers represented by formula (I): HO(C2H4O) x (C3H6O) y (C2H4O) z H(I) wherein x, y, and z are integers such that x + z is 2 to 100, and y is 14 to 60, and mixtures thereof, and more particularly preferably selected from the block copolymers represented by formula (I) having an HLB value of 8.0 to 14.0.

[0212] The (6) polyoxyethylenated (1 - 40 EO) and polyoxypropylenated (1 - 30 PO) alkyl (C 16 -C 30 ) ethers that can be used as the above nonionic surfactants are selected from the following: PPG-6-decyltetradeceth-30; polyoxyethylene (30) polyoxypropylene (6) tetradecyl ether, such as those sold by Nikko Chemicals Co. under the trade name Nikkol PEN-4630, PPG-6-decyltetradeceth-12; polyoxyethylene (12) polyoxypropylene (6) tetradecyl ether, such as those sold by Nikko Chemicals Co. under the trade name Nikkol PEN-4612, PPG-13-decyltetradeceth-24; polyoxyethylene (24) polyoxypropylene (13) decyltetradecyl ether, such as those sold by NOF Corporation under the trade name UNILUBE 50MT-2200B, PPG-6-decyltetradeceth-20; polyoxyethylene (20) polyoxypropylene (6) decyltetradecyl ether, such as those sold by Nikko Chemicals Co. under the trade name Nikkol PEN-4620, PPG-4-ceteth-1; polyoxyethylene (1) polyoxypropylene (4) cetyl ether, such as those sold by Nikko Chemicals Co. under the trade name Nikkol PBC-31, PPG-8-ceteth-1; polyoxyethylene (1) polyoxypropylene (8) cetyl ether, such as those sold by Nikko Chemicals Co. under the trade name Nikkol PBC-41, PPG-4-ceteth-10; polyoxyethylene (10) polyoxypropylene (4) cetyl ether, such as those sold by Nikko Chemicals Co. under the trade name Nikkol PBC-33, PPG-4-ceteth-20; polyoxyethylene (20) polyoxypropylene (4) cetyl ether, such as those sold by Nikko Chemicals Co. under the trade name Nikkol PBC-34, PPG-5-ceteth-20; polyoxyethylene (20) polyoxypropylene (5) cetyl ether, such as those sold by Croda Inc. under the trade name Procetyl AWS, PPG-8-ceteth-20; polyoxyethylene (20) polyoxypropylene (8) cetyl ether, such as those sold by Nikko Chemicals Co. under the trade name Nikkol Nikkol PBC-44; and PPG-23 Steareth-34; polyoxyethylene polyoxypropylene stearyl ether (34 EO) (23 PO), such as those sold by Pola Chemical Industries as Unisafe 34S-23. It can provide long-term stability to the composition even when the temperature of the composition rises and falls within a relatively short period of time.

[0213] More preferably, the polyoxyethylenated (1 - 40 EO) and polyoxypropylenated (1 - 30 PO) alkyl (C 16 -C 30 ) ether is (15 - 40 EO) and polyoxypropylenated (5 - 30 PO) alkyl (C 16 -C 24 ) ether, which may be selected from PPG-6 decyltetradeceth-30, PPG-13 decyltetradeceth-24, PPG-6 decyltetradeceth-20, PPG-5 ceteth-20, PPG-8 ceteth-20, and PPG-23 Steareth-34.

[0214] Even more preferably, the polyoxyethylenated (1 - 40 EO) and polyoxypropylenated (1 - 30 PO) alkyl (C 16 -C 30 ) ether is (15 - 40 EO) and polyoxypropylenated (5 - 30 PO) alkyl (C 16 -C 24 ) ether, which may be selected from PPG-6 decyltetradecaneth-30, PPG-13 decyltetradecaneth-24, PPG-5 ceteth-20, and PPG-8 ceteth-20.

[0215] As the (7) silicone surfactant that can be used as the above nonionic surfactant, those disclosed in documents US-A-5364633 and US-A-5411744 may be mentioned.

[0216] As the (7) silicone surfactant of the above nonionic surfactant, it may preferably be a compound of formula (I): Wherein: R1, R2, and R3 each independently represent a C1 - C6 alkyl group or the group -(CH2) x -(OCH2CH2) y -(OCH2CH2CH2) z -OR4, where at least one of the groups R1, R2, or R3 is not an alkyl group; R4 is hydrogen, an alkyl group, or an acyl group; A is an integer from 0 to 200; B is an integer from 0 to 50; provided that A and B are not both zero; x is an integer from 1 to 6; y is an integer from 1 to 30; z is an integer from 0 to 5.

[0217] According to a preferred embodiment of the present invention, in the compound of formula (I), the alkyl group is methyl, x is an integer from 2 to 6, and y is an integer from 4 to 30.

[0218] As an example of the organosilicon surfactant of formula (I), the compound of formula (II) may be mentioned: wherein A is an integer from 20 to 105, B is an integer from 2 to 10, and y is an integer from 10 to 20.

[0219] As an example of the silicone surfactant represented by formula (I), the compound represented by formula (III) may also be mentioned: H-(OCH2CH2) y -(CH2)3-[(CH3)2SiO] A’ -(CH2)3-(OCH2CH2) y -OH (III) wherein A' and y are integers from 10 to 20.

[0220] The compounds that can be used in the present invention are those sold by Dow Corning under the names DC 5329, DC 7439-146, DC2-5695 and Q4-3667. Compounds DC 5329, DC 7439-146 and DC 2-5695 are compounds of formula (II), wherein respectively, A is 22, B is 2, and y is 12; A is 103, B is 10, and y is 12; A is 27, B is 3, and y is 12.

[0221] Compound Q4-3667 is a compound of formula (III), wherein A is 15 and y is 13.

[0222] (f) The non-ionic surfactant may have a HLB (hydrophilic-lipophilic balance) value of 8.0 to 14.0, preferably 9.0 to 13.5, and more preferably 10.0 to 13.0. If two or more non-ionic surfactants are used, the HLB value is determined by the weighted average of the HLB values of all non-ionic surfactants.

[0223] Preferably, the (f) non-ionic surfactant is selected from polyglycerol fatty acid esters, and more preferably monoesters of polyglycerol fatty acids.

[0224] Specifically, (f) the nonionic surfactant may be a mixture of a first polyglycerol fatty acid monoesters with an HLB value of less than 10, preferably less than 9, and more preferably less than 8, and a second polyglycerol fatty acid monoesters with an HLB value of greater than 11, preferably greater than 12, and more preferably greater than 13.

[0225] In the composition according to the invention, the amount of (f) one or more nonionic surfactants may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, based on the total weight of the composition.

[0226] On the other hand, in the composition according to the invention, the amount of (f) one or more nonionic surfactants may be 5% by weight or less, preferably 3% by weight or less, and more preferably 1% by weight or less, based on the total weight of the composition.

[0227] In the composition according to the invention, the amount of (f) one or more nonionic surfactants may be from 0.01% by weight to 5% by weight, preferably from 0.05% by weight to 3% by weight, and more preferably from 0.1% by weight to 1% by weight, based on the total weight of the composition.

[0228] [Inorganic particles] The composition according to the invention may further comprise (g) at least one inorganic particle. A single type of inorganic particle may be used, or two or more different types of inorganic particles may be used in combination.

[0229] (g) The particle size of the inorganic particles corresponds to the primary particle size. In addition, the particle size here refers to the average particle size, which may be the volume average particle size, for example, which can be measured by a laser diffraction particle size analyzer.

[0230] The particle size of the (g) inorganic particles used in the present invention is not limited. However, the particle size of the (f) inorganic particles is preferably 50 μm or less, preferably 30 μm or less, more preferably 15 μm or less, even more preferably 10 μm or less, and particularly preferably 2 to 5 μm.

[0231] (g) The inorganic particles may be porous or non-porous, preferably non-porous.

[0232] (g) The inorganic particles may be hollow or solid, preferably hollow.

[0233] (g) The inorganic particles may comprise or consist of at least one material selected from the following: - Metal oxides, such as zirconia, ceria, iron oxide, and titanium oxide; - Alumina; - Silicates, such as talc, clay, and kaolin; - Glass particles; - Silicon dioxide; - Calcium carbonate or magnesium carbonate; - Magnesium bicarbonate; - Hydroxyapatite; and - Mixtures thereof.

[0234] Among the silicon dioxide particles, hollow spherical silicon dioxide particles can be mentioned, such as the product sold under the trade name BA4 by JGC Catalysts and Chemicals Ltd. in Japan.

[0235] The amount of (g) one or more inorganic particles in the composition according to the present invention can be 1% by weight or more, preferably 2% by weight or more, and more preferably 3% by weight or more, based on the total weight of the composition.

[0236] On the other hand, the amount of (g) one or more inorganic particles in the composition according to the present invention can be 20% by weight or less, preferably 15% by weight or less, and more preferably 10% by weight or less, based on the total weight of the composition.

[0237] The amount of (g) one or more inorganic particles in the composition according to the present invention can be from 1% by weight to 20% by weight, preferably from 2% by weight to 15% by weight, and more preferably from 3% by weight to 10% by weight, based on the total weight of the composition.

[0238] [Other optional ingredients] The composition according to the present invention may further comprise an effective amount of one or more other optional ingredients that have been previously known elsewhere in cosmetic compositions, such as anionic, cationic or amphoteric surfactants; organic powders different from ingredient (a); thickeners different from ingredient (b); chelating agents such as EDTA and trisodium ethylenediaminedisuccinate; preservatives; vitamins or provitamins such as panthenol; fragrances; plant extracts; and the like.

[0239] The composition according to the present invention may comprise one or more cosmetically acceptable organic solvents, which can be alcohols: especially monohydric alcohols such as ethanol, isopropanol, benzyl alcohol, phenoxyethanol and phenethyl alcohol; diols such as ethylene glycol, caprylyl glycol, propylene glycol, dipropylene glycol and butylene glycol; other polyols such as glycerol, sugars and sugar alcohols; and ethers such as ethylene glycol monomethyl ether, monoethyl ether and monobutyl ether, propylene glycol monomethyl ether, monoethyl ether and monobutyl ether, and butylene glycol monomethyl ether, monoethyl ether and monobutyl ether.

[0240] The organic water-soluble solvent can be present in an amount of 0.01% by weight or more, preferably 0.1% by weight or more, and more preferably 1% by weight or more, based on the total weight of the composition.

[0241] The organic water-soluble solvent may be present in an amount of 20% by weight or less, preferably 15% by weight or less, and more preferably 10% by weight or less, based on the total weight of the composition.

[0242] The organic water-soluble solvent may be present in an amount of 0.01% by weight to 20% by weight, preferably 0.1% by weight to 15% by weight, and more preferably 1% by weight to 10% by weight, based on the total weight of the composition.

[0243] [Preparation and properties] The composition according to the invention can be prepared by mixing one or more of the essential ingredients and one or more optional ingredients (if required) as described above.

[0244] The methods and means for mixing the above essential ingredients and optional ingredients are not limited. Any conventional methods and means can be used to mix the above essential ingredients and optional ingredients to prepare the composition according to the invention. Conventional methods and means may include homogenizers, such as turbo mixers.

[0245] [Form] The composition according to the invention can have various forms.

[0246] Since the composition according to the invention contains (c) water, the composition according to the invention can be a fluid such as an aqueous solution. Since (b) the associative polymer can be used as a thickener, the appearance of the composition of the invention can be a gel.

[0247] If the composition of the invention contains (d) at least one lipophilic organic UV filter and / or (e) at least one oil, it can be in the form of an O / W emulsion. The appearance of the composition according to the invention in the form of an O / W emulsion can be a paste or a cream.

[0248] The composition in the form of an O / W emulsion according to the invention contains a dispersed fat phase, such as an oil phase dispersed in a continuous aqueous phase. The dispersed fat phase can exist in the form of oil droplets in the aqueous phase.

[0249] Since (b) the associative polymer can be used as a thickener, the aqueous phase can be thickened. The composition according to the invention is preferably in the form of an O / W gel emulsion.

[0250] The O / W system or structure consists of a fat phase dispersed in an aqueous phase, having an external aqueous phase, and thus, the composition having an O / W system or structure according to the invention can provide a pleasant feeling during use because the aqueous phase can provide an instant refreshing feeling.

[0251] The viscosity of the composition according to the invention is preferably 10,000 mPa·s or higher, more preferably 15,000 mPa·s or higher, and even more preferably 20,000 mPa·s or higher. The viscosity can be measured at 25 °C using a B-type viscometer (e.g., rotor: No. 4, rotation speed: 6 rpm, measurement time: 1 minute).

[0252] Also preferably, the viscosity of the composition according to the invention at 25 °C is 200,000 mPa·s or lower, more preferably 150,000 mPa·s or lower, and even more preferably 100,000 mPa·s or lower.

[0253] Preferably, the viscosity of the composition according to the invention at 25 °C is from 10,000 mPa·s to 200,000 mPa·s, more preferably from 15,000 mPa·s to 150,000 mPa·s, and even more preferably from 20,000 mPa·s to 100,000 mPa·s.

[0254] [Methods and uses] The composition according to the invention is preferably a cosmetic composition, and more preferably a cosmetic composition for keratinous substances (such as the skin).

[0255] The composition according to the invention can be used in non-therapeutic methods, such as cosmetic methods, for treating keratinous substances by applying it to keratinous substances such as the skin, hair, mucous membranes, nails, eyelashes, eyebrows and / or scalp.

[0256] Therefore, the present invention also relates to a cosmetic method for treating keratinous substances (preferably the skin), which method comprises the step of applying the composition according to the invention to the keratinous substance.

[0257] The present invention may also relate to the use of the composition according to the invention as a cosmetic product or in a cosmetic product (such as a care product) for body and / or facial skin and / or mucous membranes and / or scalp and / or hair and / or nails and / or eyelashes and / or eyebrows, etc.

[0258] In other words, the composition according to the invention can be directly used as a cosmetic product. Alternatively, the composition according to the invention can be used as an element of a cosmetic product. For example, the composition according to the invention can be added to or combined with any other element to form a cosmetic product.

[0259] The care product can be a lotion, a cream, etc.

[0260] The present invention may also relate to (a) the use of at least one cellulose particle in a composition comprising: (b) At least one associative polymer comprising one or more acrylic and / or methacrylic acid units; and (c) Water, such that when the composition is applied to keratinous substances (such as the skin) (preferably at the initial stage of application), it causes a combined physical transformation, and / or reduces the stickiness of the keratinous substance after application.

[0261] The present invention may also relate to the use of (b) at least one associative polymer comprising one or more acrylic and / or methacrylic acid units in a composition comprising: (a) At least one cellulose granule; and (c) Water, such that when the composition is applied to keratinous substances (such as the skin) (preferably at the initial stage of application), it causes a combined physical transformation, and / or stabilizes the composition.

[0262] The explanations regarding components (a) to (c) in the composition according to the present invention may apply to those in the above uses according to the present invention.

[0263] The present invention may also relate to the use of (a) at least one cellulose granule in a composition comprising: (b) At least one associative polymer comprising one or more acrylic and / or methacrylic acid units; (c) Water; and (d) At least one lipophilic organic UV filter and / or (e) at least one oil, for causing a change in its texture when the composition is applied to keratinous substances (such as the skin) (preferably at the initial stage of application), and / or stabilizing the composition, and / or reducing the stickiness, oily / greasy and shiny appearance of the keratinous substance after application.

[0264] The present invention may also relate to the use of (b) at least one associative polymer comprising one or more acrylic and / or methacrylic acid units in a composition comprising: (a) At least one cellulose granule; (c) Water; and (d) At least one lipophilic organic UV filter and / or (e) at least one oil, such that when the composition is applied to keratinous substances (such as the skin) (preferably at the initial stage of application), it causes a change in its texture, and / or stabilizes the composition.

[0265] The explanations regarding components (a) to (e) in the composition according to the present invention may apply to those in the above uses according to the present invention.

[0266] The composition used in the above-mentioned use according to the present invention may preferably comprise (f) at least one non-ionic surfactant.

[0267] The composition used in the above-mentioned use according to the present invention may preferably comprise (g) at least one inorganic particle. Examples

[0268] The present invention will be described in more detail by way of examples, which should not be construed as limiting the scope of the present invention.

[0269] [Example 1A and Comparative Examples 1A-6A] According to Example 1A and Comparative Examples 1A-6A shown in Table 1A, the following compositions in the form of aqueous gels were prepared by mixing the components shown in Table 1A as follows: (1) Mix the components in row A of Table 1A at 75-80 °C to form a homogeneous phase A mixture; (2) Add the components in row B of Table 1A to the phase A mixture, and then homogenize it to obtain a homogeneous mixture (phase A and phase B); (3) Add the components in row C of Table 1A to the mixture of phase A and phase B, and then homogenize it to obtain a homogeneous mixture (phase A, phase B and phase C), and cool the resulting mixture to room temperature (25 °C); and (4) Add the components in row D of Table 1A to the mixture of phase A, phase B and phase C, and then homogenize it to obtain a homogeneous mixture (phase A, phase B, phase C and phase D).

[0270] The numerical values of the amounts of the components shown in Table 1A are all based on "wt%" of the raw materials.

[0271] The properties of the component (a) (cellulose particles) in Table 1A are shown in Table 2A.

[0272] Table 2A Average size: number-average primary particle size WP oil: wet point of oil WP water: wet point of water.

[0273] (wet point of oil) The wet point of the oil was determined by the following protocol: (1) Knead 2 g of the powder component on a glass plate while adding isononyl isononanoate having a viscosity of 9 cP and a density of 0.853 g / ml at 25 °C.

[0274] (2) When the powder component is completely wetted and starts to form a paste, the weight of the added oil is determined as the wet point weight.

[0275] (3) The wet point of the oil is calculated by the following formula: Wet point of oil (ml / 100g) = {(wet point weight) / 2g} × 100 / density of the oil.

[0276] (Wet point of water) The wet point of water is determined by the following protocol: (1) While adding water with a density of 0.998 g / ml, knead 2 grams of the powder component on a glass plate with a spatula.

[0277] (2) When the powder component is completely wet and starts to form a paste, determine the weight of the added water as the wet point weight.

[0278] (3) The wet point of water is calculated by the following formula: Wet point of water (ml / 100g) = {(wet point weight) / 2g} × 100 / density of water.

[0279]

Evaluation

[0280] The results are shown in Table 1A.

[0281] (Texture transition) Five professional reviewers evaluated the "texture transition" during the application of the compositions according to Example 1A and Comparative Examples 1A - 6A. Each reviewer took each composition and applied it to their face in a circular motion. They evaluated the time at which the texture transition (from gel to liquid) occurred and scored it from 1 (poor) to 5 (very good), and then classified it into the following four grades based on the average score: Very good: 5.0 to 4.0 (Texture transition is clearly felt at the initial stage of application) Good: 3.9 to 3.0 (Texture transition is felt at the initial stage of application) Poor: 2.9 to 2.0 (Texture transition is hardly felt at the initial stage of application) Very poor: 1.9 to 1.0 (Texture transition is not felt at all at the initial stage of application) The results are shown in Table 1A.

[0282] (Non - sticky feeling) Five professional reviewers evaluated the "non-sticky feeling" after the application of the compositions according to Example 1A and Comparative Examples 1A-6A. Each reviewer took each composition and applied it to their face, evaluated the non-sticky feeling after application, and scored it from 1 (poor) to 5 (very good), and then classified it into the following four grades based on the average score: Very good: 5.0 to 4.0 (no sticky feeling is felt at all after application) Good: 3.9 to 3.0 (almost no sticky feeling is felt after application) Poor: 2.9 to 2.0 (sticky feeling is felt after application) Very poor: 1.9 to 1.0 (obvious sticky feeling is felt after application) The results are shown in Table 1A.

[0283] (Stability) The compositions according to Example 1A and Comparative Examples 1A-6A were respectively filled into glass bottles and stored at 4 °C, 25 °C, 37 °C and 45 °C under temperature change conditions for 2 months. Then, the degree of change (appearance, color and odor) of each sample was investigated and evaluated according to the following criteria: Very good: Almost the same as when produced.

[0284] Good: Almost no change in appearance, color and odor is observed.

[0285] Poor: Obvious changes in appearance, color and odor are observed.

[0286] Very poor: Changes in appearance, color and odor can be significantly noticed.

[0287] The results are shown in Table 1A.

[0288] (Summary) It is clearly known from Table 1A that the aqueous gel composition according to the present invention (Example 1A) provides excellent cosmetic effects in terms of texture transformation, non-sticky feeling and stability under temperature change for 2 months, which can be attributed to the combination of components (a) and (b) in the presence of component (c). Therefore, the composition according to the present invention can provide particularly excellent touch and long-term stability even under temperature change.

[0289] On the other hand, the compositions according to Comparative Examples 1A-3A without component (a) (cellulose particles) showed poor texture transformation and stickiness.

[0290] The composition according to Comparative Example 4A containing silica particles instead of component (a) showed poor texture transformation.

[0291] The composition according to Comparative Example 5A that does not contain component (b) (acrylate / behenyl alcohol polyether-25 methacrylate copolymer) cannot be thickened and shows poor texture transition and instability.

[0292] The composition according to Comparative Example 6A that contains another thickening agent instead of component (b) shows poor texture transition.

[0293] [Examples 2A and Comparative Examples 7A - 10A] The compositions in the form of creams (O / W emulsions) according to Example 2A and Comparative Examples 7A - 10A shown in Table 3A were prepared by mixing the components shown in Table 3A below: (1) Mix the components in row A of Table 3A at 75 - 80 °C to form a homogeneous phase A mixture; (2) Add the components in row B of Table 3A to the phase A mixture, and then homogenize it to obtain a homogeneous mixture (phase A and phase B); (3) Add the components in row C of Table 3A to the mixture of phase A and phase B, and then homogenize it to obtain a homogeneous mixture (phase A, phase B, and phase C), and cool the obtained mixture to room temperature (25 °C); (4) Add the components in row E of Table 3A to the mixture of phase A, phase B, and phase C, and then homogenize it to obtain a homogeneous mixture (phase A, phase B, phase C, and phase E); and (5) Add the components in row D of Table 3A to the mixture of phase A, phase B, phase C, and phase E, and then homogenize it to obtain a homogeneous mixture (phase A, phase B, phase C, phase D, and phase E). The numerical values of the amounts of each component in Table 3A are shown based on the "weight percentage" of the raw materials. Table 3A

[0294] The properties of the cellulose (granular) in Table 3A are the same as those shown in Table 2A.

[0295] [Evaluation] (Viscosity) At room temperature (25 °C), the viscosities of the compositions according to Example 2A and Comparative Examples 7A, 8A, and 10A were measured using a Brookfield viscometer under the conditions of rotor: No. 4, rotation speed: 6 rpm, and measurement time: 1 minute.

[0296] Since the composition according to Comparative Example 9A underwent phase separation, its viscosity could not be measured.

[0297] The results are shown in Table 3A.

[0298] (Texture transition) Five professional reviewers evaluated the "texture transition" during the application of the compositions according to Example 2A and Comparative Examples 7A - 10A. Each reviewer took each composition and applied it in a circular motion to their face. They evaluated the time at which the texture transition (from cream to liquid) occurred and scored it from 1 (poor) to 5 (very good), and then classified it into the following four grades based on the average score: Very good: 5.0 to 4.0 (The texture transition was significantly felt at the initial stage of application) Good: 3.9 to 3.0 (The texture transition was felt at the initial stage of application) Poor: 2.9 to 2.0 (The texture transition was hardly felt at the initial stage of application) Very poor: 1.9 to 1.0 (The texture transition was not felt at all at the initial stage of application) The results are shown in Table 3A.

[0299] (Non - sticky feeling) Five professional reviewers evaluated the "non - sticky feeling" after applying the compositions according to Example 2A and Comparative Examples 7A - 10A. Each reviewer took each composition and applied it to their face, evaluated the non - sticky feeling after application, and scored it from 1 (poor) to 5 (very good), and then classified it into the following four grades based on the average score:: Very good: 5.0 to 4.0 (No stickiness was felt at all after application) Good: 3.9 to 3.0 (Hardly any stickiness was felt after application) Poor: 2.9 to 2.0 (Stickiness was felt after application) Very poor: 1.9 to 1.0 (Obvious stickiness was felt after application) The results are shown in Table 3A.

[0300] (Stability) The compositions according to Example 2A and Comparative Examples 7A - 10A were respectively filled into glass bottles and stored at variable temperatures of 4°C, 25°C, 37°C, and 45°C for 2 months. Then, the degree of change (appearance, color, and odor) of each sample was investigated and evaluated according to the following criteria: Very good: Almost the same as when produced.

[0301] Good: Almost no changes were observed in appearance, color, and odor.

[0302] Poor: Obvious changes were observed in appearance, color, and odor.

[0303] Very poor: Significant changes could be noticed in appearance, color, and odor.

[0304] The results are shown in Table 3A.

[0305] (Summary) As can be clearly seen from Table 3A, the cream composition according to the present invention (Example 2A) provides beneficial cosmetic effects in terms of texture transition, non-sticky feeling, and stability under temperature changes over 2 months, which can be attributed to the combination of components (a) and (b) in the presence of component (c). Therefore, the composition according to the present invention can provide an excellent touch and long-term stability even under temperature changes.

[0306] On the other hand, the composition according to Comparative Example 7A without component (a) (cellulose particles) shows poor texture transition and stickiness.

[0307] The composition according to Comparative Example 8A containing silica particles instead of component (a) shows poor texture transition and instability.

[0308] The composition according to Comparative Example 9A without component (b) (acrylate / behenyl alcohol polyether-25 methacrylate copolymer) shows poor texture transition and instability.

[0309] The composition according to Comparative Example 10A containing other thickeners instead of component (b) shows poor texture transition performance and instability.

[0310] [Examples 1B - 2B and Comparative Examples 1B - 2B] According to Examples 1B - 2B and Comparative Examples 1B - 2B in Table 1B, the following compositions in the form of O / W emulsions were prepared by mixing the components shown in Table 1B as follows: (1) Mix the components in row A of Table 1B at 75 - 80 °C to form a homogeneous mixture of phase A; (2) Add the components in row B of Table 1B to the phase A mixture, and then homogenize it to obtain a homogeneous mixture (phase A and phase B); (3) Add the components in row C of Table 1B (if any) to the mixture of phase A and phase B, and then homogenize it to obtain a homogeneous mixture (phase A, phase B, and phase C); (4) Add the components in row D of Table 1B to the mixture of phase A and phase B, and then homogenize it to obtain a homogeneous mixture (phase A, phase B, phase C, and phase D), and cool the resulting mixture to room temperature (25 °C); (5) Add the components in row E of Table 1B to the mixture of phase A, phase B, phase C, and phase D, and then homogenize it to obtain a homogeneous mixture (phase A, phase B, phase C, phase D, and phase E); (6) Add the components in row F of Table 1B to the mixture of phases A, B, C, D, and E, and then homogenize it to obtain a uniform mixture (phases A, B, C, D, E, and F); and (7) Add the components in row G of Table 1B to the mixture of phases A, B, C, D, E, and F, and then homogenize it to obtain a uniform mixture (phases A, B, C, D, E, F, and G) with a pH of 7.0.

[0311] The numerical values of the amounts of the respective components in Table 1B are all based on "wt%" of the raw materials.

[0312] The properties of component (a) (cellulose) in Table 1B are shown in Table 2B.

[0313] Table 2B Average size: number-average primary particle size WP oil: wet point of the oil WP water: wet point of the water.

[0314] (wet point of the oil) The wet point of the oil is determined by the following procedure: (1) Knead 2 g of the powder component on a glass plate with a spatula while adding isononyl isononanoate having a viscosity of 9 cP and a density of 0.853 g / ml at 25°C.

[0315] (2) When the powder component is completely wetted and starts to form a paste, determine the weight of the added oil as the wet point weight.

[0316] (3) The wet point of the oil is calculated by the following formula: wet point of the oil (ml / 100 g) = {(wet point weight) / 2 g} × 100 / density of the oil.

[0317] (wet point of the water) The wet point of the water is determined by the following procedure: (1) Knead 2 g of the powder component on a glass plate with a spatula while adding water having a density of 0.998 g / ml.

[0318] (2) When the powder component is completely wetted and starts to form a paste, determine the weight of the added water as the wet point weight.

[0319] (3) The wet point of the water is calculated by the following formula: wet point of the water (ml / 100 g) = {(wet point weight) / 2 g} × 100 / density of the water.

[0320]

Evaluation

[0321] The results are shown in Table 1B.

[0322] (Texture transition) Five professional reviewers evaluated the "texture transition" of the compositions according to Examples 1B-2B and Comparative Examples 1B-2B during application. Each reviewer took each composition and applied it to their face in a circular motion. They evaluated the time at which the texture transition (from gel to liquid) occurred and scored it from 1 (poor) to 5 (very good), and then classified it into the following four grades based on the average score: Very good: 5.0 to 4.0 (texture transition was clearly felt at the initial stage of application) Good: 3.9 to 3.0 (texture transition was felt at the initial stage of application) Poor: 2.9 to 2.0 (texture transition was hardly felt at the initial stage of application) Very poor: 1.9 to 1.0 (texture transition was not felt at all at the initial stage of application) The results are shown in Table 1B.

[0323] (Non-sticky feeling) Five professional reviewers evaluated the "non-sticky feeling" after applying the compositions according to Examples 1B-2B and Comparative Examples 1B-2B. Each reviewer took each composition and applied it to their face, evaluated the non-sticky feeling after application, and scored it from 1 (poor) to 5 (very good), and then classified it into the following four grades based on the average score: Very good: 5.0 to 4.0 (no stickiness was felt at all after application) Good: 3.9 to 3.0 (almost no stickiness was felt after application) Poor: 2.9 to 2.0 (stickiness was felt after application) Very poor: 1.9 to 1.0 (obvious stickiness was felt after application) The results are shown in Table 1B.

[0324] (Non-oily / greasy feeling) Five professional reviewers evaluated the "non-oily / greasy feeling" after the application of the compositions according to Example 1B-2B and Comparative Example 1B-2B. Each reviewer took each composition, applied it to their face, evaluated the non-greasy feeling after application, and scored it from 1 (poor) to 5 (very good). Then, based on the average score, it was divided into the following four grades: Very good: 5.0 to 4.0 (completely no oily / greasy feeling after application) Good: 3.9 to 3.0 (almost no oily / greasy feeling after application) Poor: 2.9 to 2.0 (oily / greasy feeling after application) Very poor: 1.9 to 1.0 (obvious oily / greasy feeling after application) The results are shown in Table 1B.

[0325] (Dull skin appearance) Five professional reviewers evaluated the "dull skin appearance" after using the compositions according to Example 1B-2B and Comparative Example 1B-2B. Each reviewer took each composition, applied it to their face, evaluated the dull skin appearance after application, and scored it from 1 (poor) to 5 (very good). Then, based on the average score, it was divided into the following 4 grades: Very good: 5.0 to 4.0 (completely no gloss feeling after application) Good: 3.9 to 3.0 (almost no gloss feeling after application) Poor: 2.9 to 2.0 (gloss feeling after application) Very poor: 1.9 to 1.0 (obvious gloss feeling after application) (Stability) The compositions according to Example 1B-2B and Comparative Example 1B-2B were respectively filled into glass bottles and stored at 4 °C, 25 °C, 37 °C and 45 °C under temperature change conditions for 2 months. Then, the degree of change (appearance, color and odor) of each sample was investigated and evaluated according to the following criteria: Very good: Almost the same as when produced.

[0326] Good: Almost no change in appearance, color and odor was observed.

[0327] Poor: Obvious changes in appearance, color and odor were observed.

[0328] Very poor: Significant changes in appearance, color and odor were noticeable.

[0329] The results are shown in Table 1B.

[0330] (Summary) It can be clearly seen from Table 1B that the compositions in the form of O / W emulsions according to the present invention (Examples 1B and 2B) provide beneficial cosmetic effects in the following aspects: texture transformation during application, non-sticky feeling after application, absence of oiliness / greasiness and dull appearance, as well as stability under temperature variations over 2 months, which can be attributed to the combination of components (a) and (b) in the presence of components (c) and (d). Therefore, the compositions according to the present invention can provide particularly excellent touch and long-term stability even under temperature variations.

[0331] Due to the presence of component (g) (silica particles), the composition according to Example 2B is superior to the composition according to Example 1B in terms of non-sticky feeling, absence of oiliness / greasiness and dull appearance after application.

[0332] On the other hand, the composition according to Comparative Example 1B, which does not contain component (a) (cellulose particles), shows poor texture transformation, stickiness, oiliness / greasiness and shiny appearance, and is unstable.

[0333] The composition according to Comparative Example 2B, which does not contain component (b) (acrylate / behenyl methacrylate copolymer), cannot be thickened well, shows poor texture transformation, and has poor stability.

Claims

1. A composition, preferably a cosmetic composition, and more preferably a skin cosmetic composition, comprising: (a) at least one cellulose particle; (b) at least one associative polymer comprising one or more acrylic and / or methacrylic acid units; and (c) water.

2. The composition according to claim 1, wherein, The particle size of the cellulose particles (a) is 50 μm or less, preferably 30 μm or less, and more preferably 10 μm or less.

3. The composition according to claim 1 or 2, wherein, The cellulose particles (a) have: a wet point of oil of at least 40 ml / 100 g, preferably at least 50 ml / 100 g, and more preferably at least 60 ml / 100 g, and a wet point of water of at least 100 ml / 100 g, preferably at least 200 ml / 100 g, and more preferably at least 300 ml / 100 g.

4. The composition according to any one of claims 1 to 3, wherein, The ratio of the wet point of water to the wet point of oil of the cellulose particles (a) is 5 or less, preferably 4 or less, and more preferably 2 or less.

5. The composition according to any one of claims 1 to 4, wherein, The cellulose particles (a) are spherical.

6. The composition according to any one of claims 1 to 5, wherein, The amount of the one or more cellulose particles (a) in the composition is 0.1% by weight to 20% by weight, preferably 0.5% by weight to 15% by weight, and more preferably 1% by weight to 10% by weight, based on the total weight of the composition.

7. The composition according to any one of claims 1 to 6, wherein, The said (b) associative polymer comprises one or more (meth)acrylic (C1-C 12 ) alkyl ester units.

8. The composition according to any one of claims 1 to 7, wherein, The associative polymer (b) contains one or more units derived from polyoxyalkylated fatty alcohols.

9. The composition according to any one of claims 1 to 8, wherein, The amount of the one or more associative polymers (b) in the composition is 0.01% by weight to 10% by weight, preferably 0.05% by weight to 5% by weight, and more preferably 0.1% by weight to 1% by weight, based on the total weight of the composition.

10. The composition according to any one of claims 1 to 9, wherein, The composition further comprises (d) at least one lipophilic organic UV filter.

11. The composition according to claim 10, wherein (d) the lipophilic organic UV filter is selected from cresyl triazone, bis(ethylhexyl) methoxyphenyl triazine, ethylhexyl triazone, diethylamino hydroxybenzoyl hexyl benzoate, butyl methoxydibenzoylmethane, ethylhexyl methoxycinnamate, ethylhexyl salicylate, octocrylene, homosalate and mixtures thereof.

12. The composition according to claim 10 or 11, wherein the amount of (d) one or more lipophilic organic UV filters in the composition is from 1% to 30% by weight, preferably from 3% to 25% by weight, and more preferably from 5% to 20% by weight.

13. The composition according to any one of claims 1 to 12, wherein, The composition further comprises (e) at least one oil, preferably selected from polar oils, and more preferably selected from ester oils, synthetic triglycerides, and mixtures thereof.

14. The composition according to any one of claims 1 to 13, wherein the composition further comprises (f) at least one nonionic surfactant, preferably selected from polyglycerol fatty acid esters, and more preferably selected from monoesters of polyglycerol fatty acids.

15. A cosmetic method for treating keratin materials, comprising the step of applying the composition according to any one of claims 1 to 14 to the keratin materials.

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