SUSPENSION OF FAT PHASE BEADS IN AN AQUEOUS SURFACTANT GEL

Abstract

SUSPENSION OF FAT-PHASE BEADS IN AN AQUEOUS SURFACTANT GEL The present invention relates to a method for preparing a suspension of fat-phase beads in an aqueous surfactant gel. The invention also relates to a suspension of fat-phase beads in an aqueous surfactant gel, particularly obtained by the method of the present invention, and its use as a suitable cosmetic composition, in particular for cleansing keratin fibers.

Description

Title of the invention: SUSPENSION OF FATTY PHASE BEADS IN AN AQUEOUS SURFACTANT GEL FIELD OF THE INVENTION

[0001] The present invention relates to a process for preparing a suspension of fatty phase beads in an aqueous surfactant gel.

[0002] The invention also relates to a suspension of fatty phase beads in an aqueous surfactant gel, in particular obtained by the process of the present invention, as well as its use as a suitable cosmetic composition, in particular, for cleaning keratin fibers. STATE OF THE ART

[0003] The search for new textures with the aim of improving the sensory properties of cosmetic products has grown considerably in recent years.

[0004] Among these new textures, the encapsulation and dispersion in an aqueous phase of fatty phase in the form of macroscopic drops or beads, allowing the delivery of a lipophilic active ingredient in an aqueous formula, is enjoying growing success among consumers.

[0005] This type of texture requiring the presence of drops or beads visible to the naked eye is difficult to achieve using a conventional emulsification process leading to the formation of very fine droplets having a diameter of the order of 0.1 to 100 μm depending on the fineness of the emulsion.

[0006] It is known in the prior art that these textures are often obtained in several stages, the oil or fatty phase beads being previously manufactured by a separate process and then suspended in the aqueous phase. However, several disadvantages are associated with the use of prefabricated beads. In particular, specific development will be necessary depending on the need and the options desired in the finished product (active, color, etc.). If we add to this the transport of the prefabricated beads requiring special precautions to ensure the integrity and quality of the beads as well as a step of filtration and rinsing of the beads before use, the process for manufacturing the bead suspensions is ultimately complex and the associated cost is particularly high.

[0007] For example, patents FR3071730, FR2972367 and FR2976824 and application WO2012120043 are known relating to dispersions of macroscopic drops of fatty phase in an aqueous phase, the dispersions being obtained by a microfluidic process, making it possible to obtain monodisperse and macroscopic drops whose size can vary between 1000 μm and 2000 μm. In particular, in order to confer to give the drops obtained good resistance and prevent their coalescence, these contain a shell, formed by coacervation of polymers of opposite charges, providing a certain rigidity to the drops produced and therefore an appearance and texture that are not very pleasant for the consumer.

[0008] Another difficulty arises in the case where cleaning formulas containing suspended oil beads are desired. Indeed, with the addition of foaming surfactants in the composition, a risk of interaction between the different ingredients may occur, for example between the gelling agents and the surfactants, which may have a negative impact on the viscosity, transparency or even the suspension of the oil beads. In addition, the presence of surfactant, by lowering the surface tension of the water, may promote the solubilization and emulsification of a portion of the fatty phase in the aqueous phase, thus leading to a reduction in the size of the beads but also to a loss of transparency due to emulsification.

[0009] Thus, there is a need for a process allowing the in situ formation of macroscopic fatty phase beads, devoid of a protective shell or membrane and suspended in an aqueous phase containing surfactants, without emulsifying the two phases. Indeed, an emulsification of the two phases could lead to the formation of very small fatty phase beads, of the order of 0.1 to 100 μm, giving an opaque white appearance to the final product. The process implemented must also be reproducible on an industrial scale, without deterioration of the beads obtained in situ due to the shearing that the beads could undergo during their manufacture.

[0010] The present invention therefore aims to provide a process for preparing a suspension of fatty phase beads in an aqueous surfactant gel, comprising an aqueous phase, comprising at least one aqueous phase gelling and / or thickening agent and at least one surfactant; and a fatty phase in the form of gelled beads, obtained in situ, suspended in the aqueous phase and comprising at least one fatty phase gelling and / or thickening agent and at least one fatty substance.

[0011] Advantageously, the method according to the present invention allows the in situ manufacture of fatty phase beads, as well as a scale-up without emulsification of the fatty phase in the aqueous phase, thus leading to a stable suspension, i.e. not exhibiting creaming, sedimentation or aggregation of the fatty phase beads with each other, as well as the absence of opacification of the aqueous phase due to the emulsification of a part of the fatty phase in the aqueous phase. Due to the in situ manufacture of the beads, another advantage of the method according to the present invention is to allow the formulation of beads directly adapted to the desired characteristics of each finished product (active ingredients, color, etc.), while reducing production and transport costs.

[0012] SUMMARY

[0013] The invention relates to a process for preparing a suspension of fatty phase beads in an aqueous surfactant gel, comprising the following steps: a. in a first reactor, mixing, at a temperature between 30°C and 130°C, at least one gelling and / or thickening agent for the fatty phase and at least one fatty substance; b. in a second reactor, mixture of formulation water and at least one aqueous phase gelling and / or thickening agent; c. stirring the fluid mixture obtained in step b) until a vortex is obtained and maintaining the vortex by constant stirring of the mixture obtained; d. slow addition of the mixture obtained in step a) into the center of the vortex formed in step c) allowing the production of gelled fatty phase beads having an average diameter greater than 300 pm; e. adding the mixture obtained in step d) to an aqueous solution comprising at least one surfactant and homogenizing with slow stirring; and f. adjusting the pH of the mixture obtained in step e) to a pH between 4.0 and 11.0 and homogenizing the mixture obtained with slow stirring.

[0014] According to one embodiment, the mixture obtained in step a) is heated to a temperature between 70°C and 95°C, preferably between 80°C and 90°C.

[0015] According to one embodiment, the fatty phase gelling and / or thickening agent is chosen from organic or mineral lipophilic gelling and / or thickening agents, waxes which are solid at room temperature, butters or a mixture thereof.

[0016] According to one embodiment, the fatty phase gelling and / or thickening agent is present in an amount ranging from 0.01% to 10% by weight relative to the total weight of said suspension.

[0017] According to one embodiment, the fatty substance is chosen from alkanes, fatty alcohols, fatty acids, fatty acid esters, fatty alcohol esters, triglycerides, oils such as non-silicone mineral, vegetable, animal and synthetic oils, non-silicone waxes, silicones, pasty fatty substances or butters or a mixture thereof.

[0018] According to one embodiment, the fatty substance is present in an amount ranging from 0.1% to 10% by weight relative to the total weight of said suspension.

[0019] According to one embodiment, the aqueous phase gelling and / or thickening agent is chosen from anionic synthetic gelling and / or thickening agents such as carbomers, sodium polyacrylate, copolymers of acrylic or methacrylic acid, copolymers of acrylic or methacrylic acid and a C1-C30 alkyl acrylate or methacrylate, modified sulfonated acrylic acid copolymers, associative acrylic polymers or copolymers or a mixture thereof.

[0020] According to one embodiment, the aqueous phase gelling and / or thickening agent is present in an amount ranging from 0.1% to 5.0% by weight relative to the total weight of said suspension.

[0021] According to one embodiment, the surfactant is chosen from cationic, anionic, non-ionic, amphoteric, zwitterionic surfactants or a mixture thereof.

[0022] According to one embodiment, the surfactant is present in an amount ranging from 1% to 30% by weight relative to the total weight of said suspension.

[0023] According to one embodiment, during step f), the pH of the mixture obtained in step e) is adjusted to a pH ranging from 4.5 to 7.0.

[0024] The invention also relates to a suspension of fatty phase beads in an aqueous surfactant gel, comprising:

[0025] an aqueous phase comprising: - at least one aqueous phase gelling and / or thickening agent; - at least one surfactant; and

[0026] a fatty phase in the form of gelled beads suspended in the aqueous phase, comprising: - at least one gelling and / or thickening agent for the fatty phase; and - at least one fatty substance.

[0027] In one embodiment, the fatty phase beads have an average diameter greater than 300 μm.

[0028] According to one embodiment, the suspension according to the present invention is obtained and / or capable of being obtained by the method of the present invention.

[0029] According to one embodiment, the surfactant is present in an amount ranging from 1% to 30% by weight relative to the total weight of said suspension.

[0030] According to one embodiment, the suspension according to the invention has a viscosity ranging from 500 mPa.s to 50000 mPa.s.

[0031] According to one embodiment, the suspension according to the invention has a pH ranging from 4.0 to 11.0.

[0032] DEFINITIONS

[0033] In the present invention, the terms below are defined as follows:

[0034] The term "comprising" and its variations are to be understood herein as not excluding the presence of other steps and / or components. In some embodiments, the term comprising may be interpreted as "consisting essentially of".

[0035] The term "gel" refers to a homogeneous, isotropic, rigid, vibrating and elastic medium. A gel is a three-dimensional network of solids diluted in a fluid that exhibits no flow when in a steady state. In bulk, gels are mainly made of liquid, but have a behavior close to that of solids thanks to their three-dimensional network entangled within the liquid. It is these entanglements that give gels their structure and contribute to their adhesion.

[0036] The terms “gelling agent” and “thickening agent” relate to ingredients capable of modifying the rheology and increasing the viscosity of a liquid composition. “Gelling agents” and / or “thickeners” are of terrestrial plant (carob), marine plant (alginate), animal (gelatin), biofermentative (xanthan), mineral (silica, salts), synthetic (carbomer) origin, and all confer specific sensory characteristics that can be combined by associating them in the composition. In a non-exhaustive manner, thickening agents can also include all combinations of raw materials making it possible to increase the viscosity of the aqueous system, such as combinations of surfactants. Non-limiting examples of these combinations of surfactants include the combination of surfactants from the isethionate, alkyl betaine, alkylpolygluside and alkanolamide families.These gelling and / or thickening agents must give the system suspensive properties allowing a homogeneous distribution of the fatty phase beads in a lasting manner.

[0037] The term "fatty substance" refers to a substance composed of molecules having hydrophobic properties. A fatty substance is in the liquid, semi-solid or solid state at room temperature and is insoluble in water. Fatty substances may be of animal, vegetable, mineral or synthetic origin. For the purposes of the invention, the fatty substance is chosen from alkanes, fatty alcohols, fatty acids, fatty acid esters, fatty alcohol esters, synthetic triglycerides, oils such as non-silicone mineral, vegetable, animal and synthetic oils, non-silicone waxes, silicones.

[0038] The term "surfactant" in the context of the present invention relates to water-soluble substances having the particularity of aggregating at the interfaces between water and fatty substances and therefore of promoting the foaming effect of hygiene products such as shower gels, soaps or shampoos. For the purposes of the invention, the surfactant is chosen from anionic surfactants, cationic surfactants, amphoteric surfactants, zwitterionic surfactants or non-ionic surfactants. In particular, the surfactant is chosen from surfactants having an HLB value greater than 10.

[0039] The term "HLB" or "Hydrophilic / Lipophilic Balance" refers to a number used to characterize the rather lipophilic or, on the contrary, hydrophilic character of a surfactant. If the surfactant has an HLB greater than 10, it will be predominantly hydrophilic, and if the HLB is less than 10, it will be rather lipophilic. Reference may be made to the document "Encyclopedia of Chemical Technology, KIRK-OTHMER", volume 22, p. 333-432, 3rd edition, 1979, WILEY, for the definition of the properties and functions of surfactants.

[0040] The term "suspension" in the context of the present invention relates to a homogeneous dispersion of solid, semi-solid or liquid droplets, insoluble in a liquid or a gel and visible to the naked eye, i.e. having an average diameter greater than 200 pm. On the contrary, an "emulsion" relates to a colloidal system of two immiscible liquids, i.e. leading to two different phases, having a macroscopically homogeneous, but microscopically heterogeneous appearance. A first phase, the dispersed phase, is present in the form of droplets dispersed in a second homogeneous phase, the continuous phase. The average diameter of the dispersed phase droplets generally ranges from 0.1 nm to 100 pm.

[0041] The term "viscosity" concerns all the phenomena of resistance to the movement of a fluid for a flow with or without turbulence. According to the invention, the viscosities are measured at room temperature (20°C) and at ambient pressure, using a Brookfield RV DV viscometer with a type 4 spindle, at a speed of 12 revolutions / minute. DETAILED DESCRIPTION

[0042] Method

[0043] The present invention relates to a process for preparing a suspension of fatty phase beads in an aqueous surfactant gel, comprising an aqueous phase comprising at least one aqueous phase gelling and / or thickening agent and at least one surfactant; and a fatty phase in the form of gelled beads, obtained in situ, suspended in the aqueous phase and comprising at least one fatty phase gelling and / or thickening agent and at least one fatty substance.

[0044] According to one embodiment, the method of the present invention comprises the following steps:

[0045] a) in a first reactor, mixture of at least one gelling and / or thickening agent of fatty phase and at least one fatty substance;

[0046] b) in a second reactor, mixture of formulation water and at least one aqueous phase gelling and / or thickening agent;

[0047] c) stirring the fluid mixture obtained in step b) until a vortex is obtained;

[0048] d) slow addition of the mixture obtained in step a) into the center of the vortex formed at step c), in order to form in situ fatty phase beads;

[0049] e) adding the mixture obtained in step d) to an aqueous solution comprising at least one surfactant and homogenizing with slow stirring; and

[0050] f) adjusting the pH of the mixture obtained in step e).

[0051] According to one embodiment, the mixture obtained in step a) comprising a gelling and / or thickening agent for the fatty phase and at least one fatty substance is heated to a temperature ranging from 30°C to 130°C. In one embodiment, the mixture obtained in step a) is heated to a temperature ranging from 70°C to 95°C. In a preferred embodiment, the mixture obtained in step a) is heated to a temperature ranging from 80°C to 90°C.

[0052] In one embodiment, the mixing in step b) of the formulation water with the aqueous phase gelling and / or thickening agent is carried out at room temperature. In one embodiment, the aqueous phase gelling and / or thickening agent is added to the formulation water, without stirring, until complete hydration.

[0053] In one embodiment, a low shear stirring system is provided in the second reactor and the mixture obtained in step b) is stirred until a vortex is obtained. In one embodiment, the mixture obtained in step b) is stirred at room temperature.

[0054] The term "vortex" designates the swirling movement around a rectilinear axis of a fluid. In the context of the invention, the fluid being the mixture obtained in step b).

[0055] In one embodiment, the vortex is maintained by constant stirring of the mixture obtained in step b).

[0056] In one embodiment, the mixture obtained in step a) is slowly added to the center of the vortex formed in step c), leading to the in situ formation of gelled fatty phase beads.

[0057] Advantageously, the mixture obtained in step a) being at a temperature ranging from 30°C to 130°C, sets instantly on contact with the aqueous phase at room temperature, thus promoting the formation of fatty phase beads.

[0058] In the context of the present invention, the term "slow addition" and all variants of this term, relates to the fact of adding in a continuous stream the mixture obtained in step a) into the center of the vortex formed in step c).

[0059] Advantageously, a slow addition of the fatty phase obtained in step a) to the center of the vortex formed in step c) allows the in situ formation of gelled fatty phase beads of controlled size, preferably of macroscopic size, more preferably of a size greater than 300 μm, without emulsification of the fatty phase with the aqueous phase.

[0060] For the purposes of the invention, the term "without emulsification" means the fact of not forming a colloidal system of two immiscible liquids, i.e. composed of a dispersed phase present in the form of dispersed droplets, having an average diameter ranging from 0.1 nm to 100 pm, in a second homogeneous phase, the continuous phase.

[0061] In one embodiment, the fatty phase beads obtained in step d) have an average diameter greater than 300 μm. In one embodiment, the fatty phase beads obtained in step d) have an average diameter ranging from 300 μm to 5000 μm. In one embodiment, the fatty phase beads obtained in step d) have an average diameter ranging from 300 μm to 2000 μm.

[0062] In one embodiment, the mixture obtained in step d) is added to an aqueous solution comprising at least one surfactant and the mixture obtained is homogenized at room temperature with slow stirring so as not to emulsify it.

[0063] In the context of the present invention, the term "slow stirring" means the minimum stirring speed to set a liquid or semi-solid phase in motion in order to homogenize it, without forming a vortex or incorporating air bubbles.

[0064] In one embodiment, the aqueous solution comprising at least one surfactant is initially prepared in a third reactor by mixing the formulation water with at least one surfactant.

[0065] In a preferred embodiment, the mixing of the formulation water with at least one surfactant is carried out at room temperature.

[0066] Optionally, in the case where raw materials which are difficult to dissolve in water are used, the mixing of the formulation water with at least one surfactant can be carried out at a temperature ranging from 30°C to 130°C, preferably at a temperature ranging from 70°C to 95°C, more preferably at a temperature ranging from 80°C to 90°C.

[0067] In the case where the mixture of the formulation water with at least one surfactant has been heated, the aqueous solution comprising at least one surfactant is cooled with slow stirring until it reaches room temperature and the mixture obtained in step d) is added.

[0068] In one embodiment, the pH of the mixture obtained in step e) is adjusted to a pH ranging from 4.0 to 11.0. In one embodiment, to a pH ranging from 4.5 to 7.0. In a preferred embodiment, to a pH ranging from 5.0 to 5.5.

[0069] Gelling and / or thickening agent for fatty phase

[0070] According to one embodiment, the fatty phase gelling and / or thickening agent(s) which can be used according to the present invention are chosen from any gelling and / or thickening agent known to those skilled in the art.

[0071] In one embodiment, the fatty phase gelling and / or thickening agent(s) that can be used according to the present invention are chosen from organic or mineral lipophilic gelling agents, waxes that are solid at room temperature, butters or a mixture thereof.

[0072] Non-limiting examples of organic lipophilic gelling and / or thickening agents that can be used according to the present invention include organopolysiloxanes; polystyrene / polyalkylene copolymers such as polystyrene / polyisoprene, polystyrene / polybutadiene, polystyrene / copoly(ethylene-propylene), polystyrene / copoly(ethylene-butylene); polyamide copolymers such as tertiary amide terminated polyamides, ester terminated poly(ester-amides), polyalkyleneoxy terminated polyamides or polyether polyamides; polyacrylates resulting from the polymerization of C10-C30 alkyl acrylate(s); polysaccharide fatty acid esters such as dextrin fatty acid esters such as dextrin palmitate, dextrin myristates, dextrin palmitates / ethylhexanoates and mixtures thereof, glycerol fatty acid mono-, di- or triesters or inulin fatty acid esters;fatty acids and their salts such as sodium palmitate or sodium stearate; polyethers, polyesters, polyurethanes, and modified polyurethanes, polyanhydrides, polycarbonates, polyureas, polyethylene glycol, polypropylene glycol, polyacetals, polyimides, polyolefins, polysulfides, polydimethylsiloxanes or a mixture thereof.

[0073] Non-limiting examples of mineral gelling agents that may be used according to the present invention include clays such as C10-C22 ammonium chloride modified hectorites, distearyldimethylammonium chloride modified hectorite, benzalkonium quatemium-18 bentonite, steralkonium bentonite; hydrophilic silicas; silicas whose silanol groups are substituted by hydrophobic groups such as dimethylsiloxyl, trimethylsiloxyl or polydimethylsiloxane groups; or a mixture thereof.

[0074] Non-limiting examples of waxes that are solid at room temperature and that can be used according to the present invention include waxes of animal, vegetable, mineral, synthetic origin or a mixture thereof. Mention may in particular be made of hydrocarbon waxes such as beeswax, lanolin wax, and Chinese insect waxes; rice wax, carnauba wax, candelilla wax, ouricurry wax, alfa wax, cork fiber wax, sugarcane wax, japan wax and sumac wax, montan wax, microcrystalline waxes, paraffins and ozokerite, polyethylene waxes, waxes obtained by Fisher-Tropsch synthesis and waxy copolymers and their esters.

[0075] Non-limiting examples of butters that may be used according to the present invention include shea butter, Nilotica Shea butter (Butyrospermum parkii), Galam butter (Butyrospermum parkii), Borneo butter or fat (or tengkawang tallow) (Shorea stenoptera), Shorea butter, Illipe butter, Madhuca butter or Bassia Madhuca longifolia, mowrah butter (Madhuca Latifolia), Katiau butter (Madhuca mottleyana), Phulwara butter (M.butyracea), Mango Butter (Mangifera indica), Murumuru Butter (Astrocatyum murumuru), Kokum Butter (Garcinia Indica), Ucuuba Butter (Virola sebifera), Tucuma Butter, Painya Butter (Kpangnan) (Pentadesma butyracea), Coffee Butter (Coffea arabica), Apricot Butter (Prunus Armeniaca), Macadamia Butter (Macadamia Temifolia), Grape Seed Butter (Vitis vinifera), Avocado Butter (Persea gratissima), Olive Butter (Olea europaea), Sweet Almond Butter (Prunus amygdalus dulcis), Cocoa Butter (Theobroma cacao) and Sunflower Butter, the butter under the INCI name Astrocaryum Murumuru Seed Butter, the butter under the INCI name Theobroma Grandiflorum Seed Butter, and butter under the INCI name Irvingia Gabonensis Kernel Butter, jojoba esters (mixture of wax and hydrogenated jojoba oil) (INCI name: Jojoba esters) and shea butter ethyl esters (INCI name: Shea butter ethyl esters).

[0076] In a preferred embodiment, the fatty phase gelling and / or thickening agent is selected from organic lipophilic gelling agents. In a more preferred embodiment, the fatty phase gelling and / or thickening agent is a modified polyurethane such as polyurethane-79.

[0077] In one embodiment, the fatty phase gelling and / or thickening agent is present in an amount ranging from 0.01% to 10% by weight relative to the total weight of the suspension. In one embodiment, in an amount ranging from 0.01% to 5%. In a preferred embodiment, in an amount ranging from 0.05% to 2%.

[0078] Fatty body

[0079] According to one embodiment, the fatty substance(s) that can be used according to the present invention are chosen from any fatty substance known to those skilled in the art.

[0080] In one embodiment, the fatty substance(s) that can be used according to the present invention are chosen from alkanes, fatty alcohols, fatty acids, fatty acid esters, fatty alcohol esters, synthetic triglycerides, oils such as non-silicone mineral, vegetable, animal and synthetic oils, non-silicone waxes, silicones, pasty fatty substances or butters or a mixture thereof.

[0081] In one embodiment, the fatty alcohols, fatty acids and fatty acid esters have at least one linear or branched, saturated or unsaturated hydrocarbon group comprising from 6 to 30 carbon atoms, optionally substituted, for example, by at least one hydroxyl group (for example 1 to 4). If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or not.

[0082] In one embodiment, the alkanes have from 6 to 30 carbon atoms and are linear or branched, optionally cyclic. As examples, the alkanes may be chosen from hexane, dodecane, isoparaffins such as isohexadecane, isododecane and isodecane.

[0083] Non-limiting examples of non-silicone oils that can be used according to the invention include hydrocarbon oils of animal origin, such as perhydrosqualene and squalane; hydrocarbon oils of vegetable origin, such as liquid triglycerides of fatty acids having from 6 to 30 carbon atoms such as triglycerides of heptanoic or octanoic acids, or for example sunflower oil, corn oil, soybean oil, cucurbitaceae oil, grape seed oil, sesame oil, hazelnut oil, apricot oil, macadamia oil, arara oil, sunflower oil, castor oil, avocado oil, triglycerides of caprylic / capric acids, jojoba oil, shea butter oil;hydrocarbons with more than 16 carbon atoms, linear or branched, of mineral or synthetic origin, such as paraffin oils, petroleum jelly, liquid paraffin, polydecenes, hydrogenated polyisobutene, partially fluorinated hydrocarbon oils; as fluorinated oils, mention may be made, by way of non-limiting examples, of perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane; bromoperfluorooctyl; nonafluoromethoxybutane and nonafluoroethoxyisobutane; perfluoromorpholine derivatives, such as 4-trifluoromethyl perfluoromorpholine.

[0084] Non-limiting examples of fatty alcohols that can be used according to the invention include non-alkoxylated, saturated or unsaturated, linear or branched fatty alcohols having from 6 to 30 carbon atoms and more particularly from 8 to 30 carbon atoms, for example, cetyl alcohol, stearyl alcohol and their mixture (cetylstearyl alcohol), octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleyl alcohol or linoleyl alcohol.

[0085] Non-limiting examples of non-silicone waxes that can be used according to the invention include mineral waxes such as paraffin, ceresin, microcrystalline waxes or ozokerite; vegetable waxes such as carnauba wax, candelilla wax and Alfa wax, olive wax, rice wax, hydrogenated jojoba wax or absolute flower waxes such as blackcurrant flower essential wax; animal waxes such as beeswax, modified beeswax (cerabellina) or Chinese insect waxes; other waxes or waxy raw materials that can be used according to the present invention are, for example, marine waxes, synthetic waxes such as polyethylene or polyolefin waxes in general.

[0086] Non-limiting examples of fatty acid esters that can be used according to the invention include esters of C1-C26 aliphatic mono- or polyacids, saturated or unsaturated, linear or branched, and of C1-C26 aliphatic mono- or polyalcohols, saturated or unsaturated, linear or branched, the total number of carbons of the esters being, for example, greater than or equal to 10.

[0087] Non-limiting examples of monoesters include dihydroabietyl behenate; octyldodecyl behenate; isocetyl behenate; cetyl lactate; C12-C15 alkyl lactate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; (iso)stearyl octanoate; isocetyl octanoate; octyl octanoate; cetyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methyl acetyl ricinoleate; myristyl stearate; octyl isononanoate; 2-ethylhexyl isononate; octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate;ethyl and isopropyl palmitates, 2-hexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, 2-octyldodecyl, mirystyl, stearyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate and 2-hexyldecyl laurate. ;

[0088] Other non-limiting examples of esters include: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoylstearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate, tridecyl erucate; triisopropyl citrate; triisotearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisanonate; and polyethylene glycol distearates.

[0089] Fatty esters may also include esters of sugars and fatty acids having from 6 to 30 carbon atoms. The term "sugar" refers to oxygen-containing hydrocarbon compounds which have several alcohol functions, with or without aldehyde or ketone functions, and having at least 4 carbon atoms. The sugars may be monosaccharides, oligosaccharides or polysaccharides.

[0090] Suitable sugars include, by way of non-limiting examples, sucrose, glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, lactose, and their derivatives, for example alkylated, such as methylated derivatives such as methylglucose.

[0091] Non-limiting examples of fatty acids include oleate, laurate, palmitate, myristate, behenate, cocoate, stearate, linoleate, linolenate, caprate, arachidonates, or their mixtures such as mixed esters oleo-palmitate, oleo-stearate, palmito-stearate.

[0092] In one embodiment, the silicones are chosen from volatile or non-volatile, cyclic, linear or branched silicones, modified or not by organic groups.

[0093] In one embodiment, the silicones are in the form of oils, waxes, resins or gums.

[0094] Non-limiting examples of silicones that can be used according to the invention include polydialkylsiloxanes, such as polydimethylsiloxanes (PDMS), and organomodified polysiloxanes having at least one functional group selected from poly(alkoxylated) groups, amine groups and alkoxy groups.

[0095] Non-limiting examples of pasty fatty bodies or butters that can be used according to the invention include lanolin and its derivatives such as lanolin alcohol, oxyethylenated lanolins, acetylated lanolin, lanolin esters such as isopropyl lanolate, oxypropylenated lanolins; polymeric or non-polymeric fluorinated compounds; vinyl polymers such as olefin homopolymers or olefin copolymers; homopolymers and copolymers of hydrogenated dienes; homopolymers and copolymers of vinyl ethers having C8-C30 alkyl groups; fat-soluble polyethers resulting from the polyetherification between one or more diols; esters and polyesters; C10-C18 triglycerides; butters such as shea butter, Shea Nilotica butter (Butyrospermum parkii), Galam butter (Butyrospermum parkii), Borneo butter or fat (or tengkawang tallow) (Shorea stenoptera), Shorea butter,Illipe butter, Madhuca butter or Bassia Madhuca longifolia, mowrah butter (Madhuca Latifolia), Katiau butter (Madhuca mottleyana), Phulwara butter (M. butyracea), mango butter (Mangifera indica), Murumuru butter (Astrocatyum murumuru), Kokum butter (Garcinia Indica), Ucuuba butter (Virola sebifera), Tucuma butter, Painya butter (Kpangnan) (Pentadesma butyracea), coffee butter (Coffea arabica), apricot butter (Prunus Armeniaca), Macadamia butter (Macadamia Temifolia), grape seed butter (Vitis vinifera), avocado butter (Persea gratissima), olive butter (Olea europaea), butter sweet almond (Prunus amygdalus dulcis), cocoa butter (Theobroma cacao) and sunflower butter, the butter under the INCI name Astrocaryum Murumuru Seed Butter, the butter under the INCI name Theobroma Grandiflorum Seed Butter, and the butter under the INCI name Irvingia Gabonensis Kernel Butter,jojoba esters (mixture of wax and hydrogenated jojoba oil) (INCI name: Jojoba esters) and shea butter ethyl esters (INCI name: Shea butter ethyl esters).

[0096] In a preferred embodiment, the fatty substance is chosen from compounds which are liquid at room temperature and at atmospheric pressure. In a preferred embodiment, the fatty substance is chosen from mineral, vegetable, animal and non-silicone synthetic oils as described above, or a mixture thereof.

[0097] In one embodiment, the fatty substance is present in an amount ranging from 0.1% to 10% by weight relative to the total weight of the suspension. In one embodiment, the fatty substance or mixture of fatty substances is present in an amount ranging from 0.1% to 5%. In a preferred embodiment, the fatty substance or mixture of fatty substances is present in an amount ranging from 0.5% to 5%.

[0098] Gelling and / or thickening agent for aqueous phase

[0099] According to one embodiment, the aqueous phase gelling and / or thickening agent(s) that can be used according to the present invention are chosen from any aqueous phase gelling and / or thickening agent known to those skilled in the art.

[0100] In one embodiment, the aqueous phase gelling and / or thickening agent(s) that can be used according to the present invention are chosen from synthetic gelling agents, natural gelling agents; chemically transformed semi-synthetic or naturally occurring gelling agents; salts; combinations of surfactants or a mixture thereof.

[0101] Non-limiting examples of synthetic gelling agents and / or thickeners that may be used according to the invention include anionic gelling agents such as carbomers, sodium polyacrylate, copolymers of acrylic or methacrylic acid, copolymers of acrylic or methacrylic acid and a C1-C30 alkyl acrylate or methacrylate, modified sulfonated acrylic acid copolymers, associative acrylic polymers or copolymers or a mixture thereof; cationic gelling agents such as acrylamidopropyltrimonium chloride / acrylate copolymer or polyquaternium-37.

[0102] Non-limiting examples of natural gelling agents that can be used according to the invention include gums such as xanthan gum, guar gum, acacia gum, gum arabic, locust bean gum, tara gum, gellan gum, tragacanth gum, tragacanth gum, alginates, carrageenans, gelatin; pectins; agar-agar or a mixture thereof.

[0103] Non-limiting examples of chemically transformed semi-synthetic or naturally occurring gelling agents that can be used according to the invention include starch and its derivatives; celluloses such as microcrystalline cellulose, cellulose gum, cellulose powder, methylcellulose, ethylcellulose, hydroxycellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, ethylcellulose, carboxymethylcellulose or a mixture thereof.

[0104] Non-limiting examples of salts that can be used according to the invention include halides of alkali metals, alkaline earth metals, ammonium or other metals such as aluminum and zinc; sulfates and phosphates of alkali metals, alkaline earth metals, ammonium or other metals such as aluminum and zinc; salts of monethanolamine (MEA) and diethanolamine (DEA); silicates of alkali metals or a mixture thereof. Examples include sodium chloride, potassium chloride, sodium sulfate, potassium sulfate, magnesium chloride, magnesium sulfate, zinc sulfate, ammonium chloride or MEA chloride.

[0105] Non-limiting examples of surfactant combinations include the combination of surfactants from the family of isethionates, alkyl betaines, alkylpolyglucosides and alkanolamides.

[0106] In a preferred embodiment, the aqueous phase gelling and / or thickening agent is chosen from synthetic anionic gelling agents. In a more preferred embodiment, the aqueous phase gelling and / or thickening agent is a copolymer of acrylic or methacrylic acid and a C1-C30 alkyl acrylate or methacrylate such as a crosslinked acrylates / C10-C30 alkyl acrylate copolymer.

[0107] In one embodiment, the aqueous phase gelling and / or thickening agent is present in an amount ranging from 0.1% to 5.0% by weight relative to the total weight of the suspension. In one embodiment, the aqueous phase gelling and / or thickening agent is present in an amount ranging from 0.5% to 5%. In a preferred embodiment, the aqueous phase gelling and / or thickening agent is present in an amount ranging from 0.5% to 2%.

[0108] Surfactant

[0109] According to one embodiment, the surfactant(s) that can be used according to the present invention are chosen from cationic surfactants, anionic surfactants, non-ionic surfactants, amphoteric surfactants, zwitterionic surfactants or a mixture thereof.

[0110] Non-limiting examples of anionic surfactants that may be used according to the invention include alkyl sulfates; alkyl ether sulfates; alkylamido ether sulfates; alkylaryl polyether sulfates; monoglyceride sulfates; alkylsulfonates; alkylamidesulfonates; alkylarylsulfonates; α-olefinsulfonates; paraffinsulfonates; alkyl sulfosuccinates; alkyl ether sulfosuccinates; alkylamide sulfosuccinates; alkyl sulfoacetates; acyl sarcosinates; acyl glutamates; alkyl ether carboxylates; alkyl sulfosuccinamates; acyl isethionates and N-acyl taurates; esters monoalkyl polyglycoside and polycarboxylic acid salts; lactylate acyls; salts of D-galactosideuronic acids; salts of alkyl ether carboxylic acids; salts of alkylaryl ether carboxylic acids; salts of alkylamido ether carboxylic acids and the corresponding unsalified forms of all these compounds, the alkyl and acyl groups of all these compounds comprising from 6 to 24 carbon atoms and the aryl group denoting a phenyl group; lipo-amino acids such as sodium lauroyl oat amino acids and sodium cocoyl apple amino acids; or a mixture thereof.

[0111] In one embodiment, the anionic surfactant is a salt of at least one anionic surfactant as described above. In one embodiment, the salt is selected from alkali metal salts such as the sodium salt or the potassium salt; ammonium salts; amine salts such as amino alcohol salts; or alkaline earth metal salts such as magnesium salts.

[0112] Non-limiting examples of amphoteric or zwitterionic surfactants that can be used according to the invention include optionally quaternized secondary or tertiary aliphatic amine derivatives comprising at least one anionic group, for example a carboxylate, sulfonate, sulfate, phosphate or phosphonate group, and in which at least one aliphatic group is a linear or branched chain comprising from 8 to 22 carbon atoms.

[0113] Examples that may be mentioned are (C8-C20) alkyl betaines, sulfobetaines, (C8-C20) alkylamido (Ci-C6) betaines such as cocoamidopropyl betaine, or (C8-C20) alkylamido (Ci-C6) alkyl sulfobetaines.

[0114] Mention may also be made of optionally quaternized secondary or tertiary aliphatic amines such as disodium cocoamphodiacetate, disodium lauroamphodiacetate, disodium caprylamphodiacetate, disodium caprylamphodiacetate, disodium cocoamphodipropionate, disodium lauroamphodipropionate, disodium caprylamphodipropionate, disodium caprylamphodipropionate, lauroamphodipropionic acid and cocoamphodipropionic acid.

[0115] Non-limiting examples of non-ionic surfactants that can be used according to the invention include:

[0116] - alkoxylated derivatives of fatty alcohols, alkylphenols, fatty acids, esters fatty acids and fatty acid amides. In one embodiment, the alkoxy groups are selected from the group consisting of C2-C6 oxides and mixtures thereof such as ethylene oxide, propylene oxide and mixtures thereof. The alkyl chain may be straight, branched, saturated or unsaturated;

[0117] - alkylpolyglucosides, which are the condensation products of long-chain alcohols chain, for example C8-C30 fatty alcohols, with sugar or starch polymers. These compounds can be represented by the formula (S)n—O—R in which S is a sugar moiety; n is an integer from about 1 to about 1000, and R is a C8-C30 alkyl group. Examples of long-chain alcohols include decyl alcohol, cetyl alcohol, stearyl alcohol, lauryl alcohol, myristyl alcohol or oleyl alcohol;

[0118] - alkanolamides resulting from the acylation of an amino alcohol by a fatty acid. Non-limiting examples of amino alcohol include monoethanolamine, diethanolamine, isopropanolamine or diethylene glycolamine (2-(2-aminoethoxy) ethanol). Non-limiting examples of fatty acids include lauric acid, palmitic acid, stearic acid, oleic acid, linoleic acid and fatty acids derived from vegetable oils such as coconut oil, soybean oil, canola oil, wheat germ oil, peanut oil, corn oil, olive oil;

[0119] - esters of sugars and mono- or polyacids having from 6 to 30 carbon atoms. Non-limiting examples of mono- or polyacids having from 6 to 30 carbon atoms include oleic acid, lauric acid, palmitic acid, myristic acid, behenic acid, stearic acid, linoleic acid, linolenic acid, capric acid, arachidonic acid, or mixtures thereof such as oleo-palmitate, oleo-stearate, palmito-stearate mixed esters;

[0120] - glyceryl esters such as glyceryl oleate, glyceryl monostearate, glyceryl monoistearate, glyceryl monopalmitate, glyceryl monobehenate and mixtures thereof; polyglyceryl esters such as polyglyceryl-4 isostearate, polyglyceryl-3 oleate, polyglyceryl-2 sesquioleate, triglyceryl diisostearate, diglyceryl monooleate, tetraglyceryl monooleate and mixtures thereof;

[0121] - sorbitan mono-, di-, tri-, esters such as sorbitan monooleate, sorbitan sesquioleate, sorbitan monoisostearate, sorbitan stearates, sorbitan trioleate, sorbitan tristearate, sorbitan dipalmitates and sorbitan isostearate. Sorbitan monooleate is preferred for use in the second composition according to the present invention;

[0122] - alkoxylated derivatives of glyceryl esters, sorbitan esters and of alkylpolyglycosides, in which the alkoxy groups are chosen from the group consisting of C2-C6 oxides and their mixtures, ethoxylated or propoxylated derivatives being preferred.

[0123] The term "sugar" refers to oxygen-containing hydrocarbon compounds that have multiple alcohol functions, with or without aldehyde or ketone functions, and having at least 4 carbon atoms. Sugars can be monosaccharides, oligosaccharides or polysaccharides.

[0124] Suitable sugars include, by way of non-limiting examples, sucrose, glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, lactose, and their derivatives, for example alkylated, such as methylated derivatives such as methylglucose.

[0125] Non-limiting examples of cationic surfactants that can be used according to the invention include salts of optionally polyoxyalkylenated primary, secondary and tertiary fatty amines, quaternary ammonium salts such as tetraalkyl ammonium, alkylamidoalkyltrialkyl ammonium, trialkylbenzyl ammonium, trialkylhydroxyalkyl ammonium, alkylpyridinium chlorides and bromides, imidazoline derivatives, cationic amine oxides, or a mixture thereof.

[0126] In a preferred embodiment, a mixture of surfactants, selected from the surfactants as described above, is used.

[0127] In a preferred embodiment, the surfactant is chosen from anionic surfactants, amphoteric or zwitterionic surfactants or a mixture thereof.

[0128] In a preferred embodiment, a mixture of anionic and amphoteric or zwitterionic surfactants as described above is used.

[0129] In a preferred embodiment, the anionic surfactant is selected from C6-C24 alkyl sulfates, C6-C24 alkyl ether sulfates, acyl glutamates or a salt thereof. In a more preferred embodiment, the anionic surfactant is sodium cocoyl glutamate.

[0130] In a preferred embodiment, the amphoteric or zwitterionic surfactant is selected from (C8-C20) alkylamido (C1-C6) alkylbetaines. In a more preferred embodiment, the amphoteric or zwitterionic surfactant is cocoylamidopropyl betaine.

[0131] In one embodiment, the surfactant or mixture of surfactants is present in an amount ranging from 1% to 30% by weight relative to the total weight of the suspension. In one embodiment, in an amount ranging from 1% to 20%. In one embodiment, in an amount ranging from 5% to 20%. In a preferred embodiment, in an amount ranging from 10% to 20%.

[0132] Cleaning suspension obtained by the process according to the invention

[0133] The invention also relates to a suspension of fatty phase beads in a gel. aqueous surfactant, comprising an aqueous phase comprising at least one aqueous phase gelling and / or thickening agent; and at least one surfactant; and a fatty phase in the form of gelled beads suspended in the aqueous phase, comprising at least one gelling and / or thickening agent for the fatty phase; and at least one fatty substance.

[0134] In one embodiment, the suspension according to the present invention is obtained and / or capable of being obtained by the method of the present invention as described above.

[0135] The embodiments defining the fatty phase gelling and / or thickening agent, the fatty substance, the aqueous phase gelling and / or thickening agent and the surfactant above apply mutatis mutandis to the suspension according to the invention.

[0136] In one embodiment, the gelled fatty phase beads have an average diameter greater than 300 μm. In one embodiment, the gelled fatty phase beads have an average diameter ranging from 300 μm to 5000 μm. In one embodiment, the gelled fatty phase beads have an average diameter ranging from 300 μm to 2000 μm.

[0137] In one embodiment, the suspension according to the invention has a viscosity ranging from 500 mPa.s to 50000 mPa.s. In one embodiment, a viscosity ranging from 1000 mPa.s to 25000 mPa.s. In a preferred embodiment, a viscosity ranging from 2000 mPa.s to 10000 mPa.s.

[0138] In one embodiment, the suspension according to the invention has a pH ranging from 4.0 to 11.0. In one embodiment, ranging from 4.5 to 7.0. In a preferred embodiment, ranging from 5.0 to 5.5.

[0139] According to one embodiment, the suspension according to the invention and in particular the aqueous phase and / or the fatty phase further comprise at least one additional compound different from the fatty phase gelling and / or thickening agent, the fatty substance, the aqueous phase gelling and / or thickening agent, the surfactant, as described above.

[0140] In one embodiment, the suspension according to the invention and in particular the aqueous phase and / or the fatty phase further comprise at least one humectant, at least one coloring agent chosen from water-soluble or liposoluble organic colorants, natural colorants of plant or mineral origin, pigments, pearlescent agents or a mixture thereof; and at least one ingredient chosen from cosmetic active ingredients such as cationic polymers, perfumes, preservatives, antioxidants, stabilizers, chelators, pH adjusting agents or a mixture thereof.

[0141] Those skilled in the art will know how to adapt the quantity of the cosmetic ingredient(s) so as not to alter the organosensory qualities and properties of the cosmetic composition.

[0142] According to one embodiment, the suspension according to the invention further comprises at least one coloring agent as defined above. In one embodiment, the coloring agent is included in the fatty phase in order to color the gelled beads.

[0143] According to one embodiment, the suspension according to the invention further comprises at least one cationic polymer. In one embodiment, the cationic polymer is included in the aqueous phase and makes it possible to improve the conditioning power of the skin or hair when the suspension according to the invention is used as a cosmetic composition suitable for cleaning keratin fibers as described below.

[0144] Non-limiting examples of cationic polymers that can be used according to the invention include starch hydroxypropyltrimonium chloride, guar hydroxypropyltrimonium chloride, carob hydroxypropyltrimonium chloride, caesalpinia spinosa hydroxypropyltrimonium chloride, cas sia hydroxypropyltrimonium chloride, dextran hydroxypropyltrimonium chloride, hydroxypropyl guar hydroxypropyltrimonium chloride, oxidized starch hydroxypropyl chloride pg-trimonium, hydrogenated starch hydrolysate hydroxypropyltrimonium chloride, ginseng hydroxypropyltrimonium chloride, lauryl methyl gluceth-10 hydroxypropyldimonium chloride, acrylamidopropyltrimonium chloride / acrylamide copolymer, propyltrimoniumchloride acrylamide / dimethylacrylamide, dimethylacrylamide / ethyltrimonium methacrylate chloride copolymer, polymethacrylamidopropyltrimonium chloride,le copolymère de chlorure d’acrylamidopropyltrimonium / acrylate, le chlorure de pg-hydroxyethylcellulose cocodimonium, le chlorure de pg-hydroxyethylcellulose stearyldimonium, le chlorure de soyamidopropalkonium, le chlorure de distearoylethyl dimonium, le chlorure de dipalmitoylethyl dimonium, les polyquatemiums tels que polyquaternium-1, polyquaternium-10, polyquaternium-104, polyquaternium-11, polyquaternium-15, polyquaternium-16, polyquaternium-18, polyquaternium-19, polyquaternium-2, polyquaternium-22, polyquaternium-24, polyquaternium-28, polyquaternium-30, polyquaternium-32, polyquaternium-33, polyquaternium-35, polyquaternium-37, polyquaternium-39, polyquaternium-4, polyquaternium-43, polyquaternium-44, polyquaternium-46, polyquaternium-47, polyquaternium-49, polyquaternium-50, polyquaternium-51, polyquaternium-52, polyquaternium-53, polyquaternium-55, polyquaternium-56, polyquaternium-57, polyquaternium-6, polyquaternium-61, polyquaternium-62, polyquaternium-63,polyquaternium-64, polyquaternium-65, polyquaternium-67, polyquaternium-68, polyquaternium-69, polyquaternium-7, polyquaternium-73, polyquaternium-74, polyquaternium-75, polyquaternium-76, polyquaternium-78 and polyquaternium-80. ,

[0145] In a preferred embodiment, the cationic polymer is chosen from polyquaterniums as described above.

[0146] In one embodiment, when the suspension according to the invention comprises a cationic polymer, the latter is present in an amount ranging from 0.1% to 10% by weight relative to the total weight of the suspension. In a preferred embodiment, in an amount ranging from 0.1% to 5%. In a preferred embodiment, in an amount ranging from 0.1% to 1%.

[0147] Use

[0148] According to one embodiment, the suspension according to the invention can be used directly as a cosmetic composition.

[0149] In one embodiment, the suspension according to the invention is in the form of a cosmetic composition suitable for the gentle cleansing of keratin fibers such as the skin of the body and / or face and / or hair, due to the presence of the fatty phase beads. In one embodiment, the suspension according to the invention is in the form of a gel suitable for cleansing the skin of the body and / or face and / or hair.

[0150] In one embodiment, the suspension according to the invention is in the form of a shower gel or a facial cleansing gel. In one embodiment, the suspension according to the invention is in the form of a shampoo or a conditioner. EXAMPLES

[0151] The present invention will be better understood by reading the following examples which illustrate the invention in a non-limiting manner.

[0152] All percentages mentioned for the compositions in the examples below are percentages by weight relative to the total weight of said composition.

[0153] Example 1: Preparation of a cleaning suspension according to the invention

[0154] Materials and Methods

[0155] In a first reactor with a capacity of 1 to 5 kg, the fatty phase was prepared by mixing, at a temperature of 80-90°C, the fatty phase gelling and / or thickening agent, the fatty substance and optionally a colorant.

[0156] In a second reactor with a capacity of 10 to 50 kg, the aqueous phase gelling and / or thickening agent was suspended in the formulation water, without stirring and at room temperature, until completely hydrated. The resulting mixture was then stirred slowly for 5 to 15 min. A low shear stirring system was then set up in the second reactor and the resulting mixture was stirred until a vortex was obtained, which was maintained by constant stirring of the mixture.

[0157]

[0158]

[0159]

[0160]

[0161]

[0162]

[0163]

[0164]

[0165] The fatty phase previously prepared in the first reactor was then added in a trickle into the center of the vortex obtained previously, leading to the instantaneous formation of fatty phase beads of the desired size. In a third reactor with a capacity of 10 to 50 kg, the aqueous solution comprising at least one surfactant was prepared by mixing, at a temperature of 60-85°C, formulation water, at least one surfactant and at least one preservative. The mixture was stirred until completely dissolved and optionally a cationic polymer was added with stirring to the resulting mixture. The aqueous solution obtained, comprising at least one surfactant, was then cooled to room temperature and the mixture comprising the gelled fatty phase beads obtained previously was added at room temperature. The whole was then homogenized with slow stirring. The pH was then adjusted to pH 5.0-5.5 and the mixture was homogenized with slow stirring. Examples 2 and 3: Examples of cleaning suspensions obtained by the process according to the invention The cleaning suspensions of Examples 2 and 3 are prepared according to Example 1 above using the compositions described in Tables 1 and 2 below. Viscosities are measured at room temperature (20°C) and ambient pressure, using a Brookfield RV DV viscometer with a Type 4 spindle, at a speed of 20 rpm. Example 2: Shampoo composition comprising suspended oil beads Table 1 below shows an example of a shampoo composition comprising colored oil beads suspended in a surfactant gel. Table 1 INCI % w / w aqua 70.00 - 80.00 sodium cocoyl glutamate 6.00 - 10.00 cocamidopropyl betaine 4.00 - 8.00 sodium chloride 1.00-4.00 acrylates / C10-30 alkyl acrylate crosspoly mer 0.80 - 2.00 dicaprylyl carbonate 0.50-1.00 polyquatemium-10 0.10-0.50 citric acid 0.10-0.50 polyurethane-79 0.05 - 0.50 caprylic / capric triglyceride 0.10-0.50 preservative 0.10-2.00 perfume 0.50 - 2.00 cosmetic active ingredients 0.10-0.50 nacre 0.001 - 0.01

[0166]

[0167]

[0168] The composition according to Example 2 is in the form of a transparent surfactant gel comprising suspended colored gelled fatty phase beads, the beads having an average diameter ranging from 300 pm to 2000 pm. The composition according to Example 2 has a viscosity ranging from 4800 mPa.s to 8500 mPa.s and a pH ranging from 5.0 to 5.5. Example 3: Cleansing composition for body and face skin Table 2 below shows an example of a shower gel and / or facial cleanser composition comprising colored oil beads suspended in a surfactant gel.

[0169] Table 2 INCI % w / w aqua 78.00 - 82.00 cocamidopropyl betaine 6.00 - 10.00 glycerin 4.00 - 8.00 sodium chloride 1.00-4.00 sodium cocoyl glutamate 1.00-4.00 acrylates / C10-30 alkyl acrylate crosspoly mer 0.50-1.50 dicaprylyl carbonate 0.10-1.00 caprylic / capric triglyceride 0.10-0.50 sodium hydroxide 0.10-0.50 polyurethane-79 0.05 - 0.50 perfume 0.10-1.00 preservatives 0.10-2.00 nacre 0.001 - 0.08

[0170] The composition according to Example 3 is in the form of a transparent surfactant gel comprising gelled and colored fatty phase beads in suspension, the beads having an average diameter ranging from 300 μm to 2000 μm. The composition according to Example 3 has a viscosity ranging from 5000 mPa.s to 7500 mPa.s and a pH ranging from 5.0 to 5.5.

Claims

1.

2.

3.

4. Claims A process for preparing a suspension of fatty phase beads in an aqueous surfactant gel, comprising the following steps: a. in a first reactor, mixing, at a temperature between 30°C and 130°C, at least one gelling and / or thickening agent for the fatty phase and at least one fatty substance; b. in a second reactor, mixing formulation water and at least one gelling and / or thickening agent for the aqueous phase; c. stirring the fluid mixture obtained in step b) until a vortex is obtained and maintaining the vortex by constantly stirring the mixture obtained; d. slow addition of the mixture obtained in step a) into the center of the vortex formed in step c) allowing the production of gelled fatty phase beads having an average diameter greater than 300 pm; e. addition of the mixture obtained in step d) into an aqueous solution comprising at least one surfactant chosen from anionic surfactants, amphoteric or zwitterionic surfactants or a mixture thereof and homogenization with slow stirring; and f. adjusting the pH of the mixture obtained in step e) to a pH between 4.0 and 11.0 and homogenizing the mixture obtained with slow stirring. A process according to claim 1, wherein the mixture obtained in step a) is heated to a temperature between 70°C and 95°C, preferably between 80°C and 90°C. A process according to claim 1 or claim 2, in wherein said at least one fatty phase gelling and / or thickening agent is chosen from organic, mineral lipophilic gelling and / or thickening agents, waxes solid at room temperature, butters or a mixture thereof. A process according to any one of claims 1 to 3, wherein said at least one fatty phase gelling and / or thickening agent is present in an amount ranging from 0.01% to 10% by weight relative to the total weight of said suspension.

5. A process according to any one of claims 1 to 4, wherein said at least one fatty substance is chosen from alkanes, fatty alcohols, fatty acids, fatty acid esters, fatty alcohol esters, triglycerides, oils such as mineral oils, vegetable oils, animal and synthetic non-silicone oils, non-silicone waxes, silicones, pasty fatty substances or butters or a mixture of these.

6. A method according to any one of claims 1 to 5, wherein said at least one fatty substance is present in an amount ranging from 0.1% to 10% by weight relative to the total weight of said suspension.

7. A method according to any one of claims 1 to 6, wherein said at least one aqueous phase gelling and / or thickening agent is chosen from anionic synthetic gelling and / or thickening agents such as carbomers, sodium polyacrylate, copolymers of acrylic or methacrylic acid, copolymers of acrylic or methacrylic acid and a C1-C30 alkyl acrylate or methacrylate, modified sulfonated acrylic acid copolymers, associative acrylic polymers or copolymers or a mixture thereof.

8. A process according to any one of claims 1 to 7, wherein said at least one aqueous phase gelling and / or thickening agent is present in an amount ranging from 0.1% to 5.0% by weight relative to the total weight of said suspension.

9. A process according to any one of claims 1 to 8, wherein said at least one surfactant is present in an amount ranging from 1% to 30% by weight relative to the total weight of said suspension.

10. A process according to any one of claims 1 to 9, wherein, during step f), the pH of the mixture obtained in step e) is adjusted to a pH ranging from 4.5 to 7.0, preferably from 5.0 to 5.

5.

11. Suspension of fatty phase beads in an aqueous surfactant gel, comprising: an aqueous phase comprising: - at least one aqueous phase gelling and / or thickening agent; - at least one surfactant chosen from anionic surfactants, amphoteric or zwitterionic surfactants or a mixture thereof; and

12.

13.

14.

15. a fatty phase in the form of gelled beads suspended in the aqueous phase, comprising: - at least one fatty phase gelling and / or thickening agent; and - at least one fatty substance, in which the fatty phase beads have an average diameter greater than 300 pm. Suspension according to claim 11, obtained or obtainable by the process as described in claims 1 to 10. Suspension according to claim 11 or claim 12, wherein said at least one surfactant is present in an amount ranging from 1% to 30% by weight relative to the total weight of said suspension. Suspension according to any one of claims 11 to 13, wherein said suspension has a viscosity ranging from 500 mPa.s to 50000 mPa.s. Suspension according to any one of claims 11 to 14, wherein said suspension has a pH ranging from 4.0 to 11.0.