Anhydrous foaming composition

Abstract

The present invention provides an anhydrous foaming composition comprising: (a) at least one cosmetic oil; (b) at least one oil phase thickener present in an amount ranging from 1.2 to 12% by weight, based on the total weight of the composition; (c) at least one nonionic surfactant selected from polyglycerol fatty acid esters; (d) at least one propellant selected from the group consisting of alkanes, halohydrocarbons, and mixtures thereof; and (e) at least one additional surfactant different from (c). The invention also provides a cosmetic process for removing makeup and / or cleansing a keratin material from a keratin material, comprising the step of applying said composition to the keratin material.

Description

An anhydrous foaming composition Technical Field This invention relates to the field of cosmetic technology. Specifically, it relates to anhydrous foaming compositions for removing makeup from and / or cleaning keratinous substances. The invention also relates to cosmetic methods for removing makeup from and / or cleaning keratinous substances. Background Technology: More and more people are using makeup to enhance their personal image and temperament, and to express their individual style. Makeup products can help people cover up facial imperfections and highlight their facial features, a change that not only affects appearance but also has a positive psychological impact. Makeup products typically contain a large amount of oils, waxes, powder ingredients, hydrocarbons, and other chemical components, therefore they need to be thoroughly removed; otherwise, they can have numerous negative effects on the skin.

[0003] Currently, mainstream makeup removers on the market are mainly divided into four categories based on their formulation: cleansing water, cleansing milk, cleansing balm, and cleansing oil. Compared to the other three, cleansing oil has the strongest cleansing power, quickly dissolving makeup and sebum, making it suitable for all skin types, especially dry and sensitive skin. Commercially available cleansing oils primarily consist of a pure oil system composed of mineral oil, synthetic esters, and plant oils, or a blend of surfactants. Overall, they tend to feel greasy and heavy, and their high fluidity often leads to dripping. Furthermore, as is well known, oil has excellent defoaming properties; therefore, most current cleansing oil products either do not foam or quickly deflate after foaming. However, cleansing oil products must contain oil to maintain the high makeup-removing efficacy provided by oil.

[0004] To provide better usability (e.g., no dripping, lightweight feel), there is currently some development and research on foaming cleansing oil products.

[0005] CN107929175A discloses a gentle makeup remover mousse and its preparation method, comprising: 30-70% solvent, 5-30% propellant, 2-10% emulsifier, 2-15% emollient, and 0.01-28% skin conditioning agent. The mixture is combined with an aerosol can, valve, and nozzle to release makeup remover oil in mousse form.

[0006] CN114917151A discloses a dry and wet universal foaming makeup remover oil, which contains 75-85 parts of plant oil; 8-15 parts of polyglycerol-2 oleate; 3-7 parts of coconut oil alcohol-caprylate / capric acid ester; 1.5-2 parts of carbon dioxide; and 1-1.5 parts of water. When used with an aerosol can, it sprays out as a creamy foam.

[0007] CN118453455A discloses a mousse-like cleansing oil and its preparation method, comprising 5-20 parts propellant, 15-40 parts synthetic oil, 10-30 parts emulsifier, 0.01-3 parts surfactant, 0.01-0.5 parts antioxidant, 0.5-5 parts water, and 40-80 parts plant oil. The mousse texture optimizes the makeup removal experience, increases the contact area between the product and the skin, and improves the dripping caused by the high fluidity of the cleansing oil.

[0008] CN112469385B discloses a foaming composition comprising: (a) at least one ether oil; (b) at least one selected from (C8-C 24 )alkyl betaine, (C8-C 24 (c) an alkylamide (C1-C6) alkyl betaine and mixtures thereof, which are amphoteric surfactants; (d) at least one anionic surfactant; (e) at least one polyglycerol fatty acid ester; and (f) at least one alkyl polyglycoside. They can form good foam and effectively remove makeup.

[0009] There is still a demand for anhydrous foaming compositions for makeup removal / cleansing that can form a pleasant and long-lasting foam. In view of the above, the present invention provides an anhydrous foaming composition and a method for preparing the same, thereby effectively solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0011] Therefore, in a first aspect, the present invention provides an anhydrous foaming composition comprising: (a) at least one cosmetic oil; (b) at least one oil-phase thickener present in an amount ranging from 1.2 to 12% by weight relative to the total weight of the composition; (c) at least one nonionic surfactant selected from polyglycerol fatty acid esters; (d) at least one propellant selected from alkanes, one or more of propane, n-butane, isobutane, n-pentane and isopentane; halogenated hydrocarbons, one or more of 1,1-difluoroethane, dichlorodifluoromethane, 1,1-dichloro-1,1,2,2-tetrafluoroethane, 1-chloro-1,1-difluoro-2,2-trifluoroethane, 1-chloro-1,1-difluoroethane, 1,1-difluoroethane, dichlorodifluoromethane and trans-1,3,3,3-tetrafluoropropene; mixtures thereof; and (e) at least one additional surfactant different from (c).

[0012] In a second aspect, the present invention provides a cosmetic method for removing makeup from and / or cleaning keratinous substances, comprising the step of applying a composition according to a first aspect of the present invention to the keratinous substance.

[0013] The composition according to the present invention can be directly sprayed in foam form through an aerosol device, without shaking, easy to use, and improves the dripping problem caused by the strong fluidity of makeup remover oil; the resulting foam has a fine texture, reduces the stickiness and heaviness of the oil, and enhances the user experience; moreover, the foam is long-lasting and stable, and can penetrate deep into pores to remove excess oil and dirt, achieving thorough makeup removal and / or cleansing. Detailed Description of Embodiments To enable those skilled in the art to further understand the present invention, specific embodiments of the present invention are described in detail below. However, it should be understood that the embodiments of the present invention described below are merely exemplary, and the present invention is not limited to these embodiments.

[0015] According to one aspect of the invention, an anhydrous foaming composition is provided, comprising: (a) at least one cosmetic oil; (b) at least one oil-phase thickener present in an amount ranging from 1.2 to 12% by weight relative to the total weight of the composition; (c) at least one nonionic surfactant selected from polyglycerol fatty acid esters; (d) at least one propellant selected from alkanes, one or more of propane, n-butane, isobutane, n-pentane and isopentane; halogenated hydrocarbons, one or more of 1,1-difluoroethane, dichlorodifluoromethane, 1,1-dichloro-1,1,2,2-tetrafluoroethane, 1-chloro-1,1-difluoro-2,2-trifluoroethane, 1-chloro-1,1-difluoroethane, 1,1-difluoroethane, monochlorodifluoromethane and trans-1,3,3,3-tetrafluoropropene; mixtures thereof; and (e) at least one additional surfactant different from (c).

[0016] The components of the composition according to the present invention will be described in detail below.

[0017] (a) Cosmetic oil According to a first aspect, the composition of the present invention comprises (a) at least one cosmetic oil.

[0018] In the context of this invention, the term "oil" refers to a fatty compound or fatty substance that is in liquid or paste (non-solid) form at room temperature (25°C) under atmospheric pressure (760 mmHg). Oils can be used alone or in combination with those commonly used in cosmetics. These oils can be volatile or non-volatile.

[0019] Oils can be non-polar oils, such as hydrocarbon oils, silicone oils, etc.; polar oils, such as vegetable or animal oils and ester or ether oils; or mixtures thereof.

[0020] These oils can have animal, plant, mineral, or synthetic sources.

[0021] Examples of vegetable oils include flaxseed oil, camellia oil, macadamia oil, corn oil, argan oil, olive oil, avocado oil, tea oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, coconut oil, rosehip oil, grapeseed oil, shea butter, wheat germ oil, oat kernel oil, avocado oil, and evening primrose oil.

[0022] Examples of animal fats include squalene and squalane.

[0023] Examples of mineral oils include straight-chain or branched hydrocarbons, such as isohexadecane and isododecane; liquid paraffin, petrolatum, and petrolatum.

[0024] Examples of synthetic oils include ester oils, ether oils, synthetic triglycerides, and silicone oils.

[0025] Examples of preferred ester oils include, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyl dodecyl octanoate, isodecanyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl octanoate / decanoate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dioctyl carbonate, and lauroyl hydroxyl. Isopropyl amino acid, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecanyl oleate, tri(2-ethylhexanoate)glyceryl ester, pentaerythritol tetra(2-ethylhexanoate) ester, 2-ethylhexyl succinate, diethyl sebacate, cetyl ethylhexanoate, pentaerythritol tetraisostearate, diisostearate malate, etc.

[0026] Examples of preferred synthetic triglycerides include trimyridine triglyceride, tripalmitoyl triglyceride, trilinolenic acid triglyceride, trilauric acid triglyceride, tridecanoic acid triglyceride, tricaprylic acid triglyceride, tri(decanoic acid / caprylic acid) triglyceride, and tri(decanoic acid / caprylic acid / linolenic acid) triglyceride.

[0027] Examples of silicone oils include linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydropolysiloxane; and cyclic organopolysiloxanes such as cyclohexylsiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecylcyclohexasiloxane.

[0028] Advantageously, the cosmetic oil is present in an amount ranging from 20 to 70% by weight, preferably 30 to 55% by weight, and more preferably 33 to 52% by weight, relative to the total weight of the composition.

[0029] (b) Oil phase thickenerAccording to a first aspect, the composition of the present invention comprises (b) at least one oil-phase thickener, which is present in an amount ranging from 1.2 to 12 by weight relative to the total weight of the composition.

[0030] In the context of this invention, the term "oil phase thickener" refers to a substance that, upon addition to an oil phase, can adjust the viscosity of the oil phase, and more particularly refers to a substance that exists only in the oil phase. Examples include dextrin fatty acid esters, hydrocarbon-styrene copolymer thickeners, polymers having a carbamate backbone, glycerol fatty acid esters, amino acid thickeners, sucrose fatty acid esters, and esters containing structural units derived from hydrogenated castor oil and structural units derived from dimer acids.

[0031] Dextrin fatty acid esters are esters of dextrin or reduced dextrin with higher fatty acids, and can be used without particular limitation as long as they are substances commonly used in cosmetics. Dextrin or reduced dextrin with an average degree of polymerization of 3 to 100 is preferred. Furthermore, saturated fatty acids with 8 to 22 carbon atoms are preferred as the constituent fatty acids of dextrin fatty acid esters. Specifically, examples include dextrin palmitate, dextrin oleate, dextrin stearate, dextrin myristate, and dextrin palmitate / ethylhexanoate.

[0032] Hydrocarbon-styrene copolymer gelling agents refer to copolymers and hydrogenated hydrocarbon copolymers, and mixtures thereof, comprising at least one styrene unit and units selected from butadiene, ethylene, propylene, butene, and isopropylene. Specifically, mixtures of (ethylene / propylene / styrene) copolymers and (butene / ethylene / styrene) copolymers can be listed. As a commercially available product, Versagel ME2000 (sold by Karmet Pentelco) is an example.

[0033] Examples of high molecular weight compounds with a carbamate backbone include castor oil / isophorone diisocyanate (IPDI) copolymers. Commercially available examples include Estogel M or EMC30 (castor oil / IPDI copolymer, with or without caprylic / capric triglycerides, sold by PolymerExpert).

[0034] Glyceryl fatty acid esters are esterification products obtained by reacting glycerol, a diacid with 18 to 28 carbon atoms, and a fatty acid with 8 to 28 carbon atoms (excluding the diacid). They can be used without particular restrictions as long as they are substances commonly used in cosmetics. Specifically, examples include glyceryl (bevacizumic acid / isostearic acid / eicosanoic acid) ester, glyceryl (bevacizumic acid / eicosanoic acid) ester, and polyglycerol ester-10 bevacizumic acid ester / eicosanoic acid ester.

[0035] Examples of amino acid thickeners include N-lauroyl-L-glutamic acid dibutylamide (dibutyllauroyl glutamine), N-2-ethylhexanoyl-L-glutamic acid dibutylamide (dibutylethylhexanoyl glutamine), polyamide-8, and polyamide-3.

[0036] Sucrose fatty acid esters are preferably those whose fatty acids are linear or branched, and have 12 to 22 carbon atoms, and are either saturated or unsaturated. Specifically, examples include sucrose caprylate, sucrose decanoate, sucrose laurate, sucrose myristate, sucrose palmitate, sucrose stearate, sucrose oleate, and sucrose erucic acid ester.

[0037] Examples of esters containing structural units derived from hydrogenated castor oil and structural units derived from dimer acids include hydrogenated castor oil / sebacic acid copolymers and hydrogenated castor oil dimer linoleate. Commercially available examples include Estogel Green or Estogel Green 40 (hydrogenated castor oil / sebacic acid copolymer, diluted with or without caprylic / capric triglycerides, sold by PolymerExpert).

[0038] Preferably, the oil phase thickener is selected from polymers having a urethane backbone (e.g., castor oil / IPDI copolymer), esters containing structural units derived from hydrogenated castor oil and structural units derived from dimer acids (e.g., hydrogenated castor oil / sebacic acid copolymer and hydrogenated castor oil dimer linoleate), and mixtures thereof.

[0039] The amount of oil phase thickener present relative to the total weight of the composition is preferably 1.5 to 10% by weight, more preferably 2.5 to 7.5% by weight.

[0040] (c) Nonionic surfactants selected from fatty acid esters of polyglycerol According to a first aspect, the composition of the present invention comprises (c) at least one nonionic surfactant selected from polyglycerol fatty acid esters.

[0041] Preferably, the polyglycerol fatty acid esters suitable for use in this invention have a polyglycerol portion derived from 2 to 10 glycerol units, more preferably 2 to 8 glycerol units, and more preferably 2 to 6 glycerol units.

[0042] The polyglycerol fatty acid esters suitable for use in this invention may be selected from monoesters, diesters, and trimers of saturated or unsaturated fatty acids, wherein the acid comprises 4 to 30 carbon atoms, preferably 6 to 20 carbon atoms, and more preferably 8 to 18 carbon atoms, such as lauric acid, oleic acid, stearic acid, isostearic acid, decanoic acid, caprylic acid, and myristic acid.

[0043] Preferably, the polyglycerol fatty acid ester suitable for the present invention is selected from one or more saturated or unsaturated fatty acids comprising 6 to 20 carbon atoms, preferably 8 to 18 carbon atoms, and polyglycerol having a polyglycerol moiety derived from 2 to 8 glycerol units, preferably 2 to 6 glycerol units.

[0044] The polyglycerol fatty acid esters suitable for use in this invention may be selected from PG2 caprylate, PG2 dicaprylate, PG2 tricaprylate, PG2 decanoate, 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 caprylate, PG3 dicaprylate, PG3 tricaprylate, PG3 decanoate, PG3 dicaprylate, PG3 tricaprylate, PG3 laurate, P G3 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 caprylate, PG4 dicaprylate, PG4 tricaprylate, PG4 decanoate, PG4 didecanoate, PG4 tridecanoate, 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 caprylate, PG5 dicaprylate, PG5 tricaprylate, PG5 tetracaprylate, PG5 decanoate, PG5 didecanoate, PG5 tridecanoate, PG5 tetradecanoate, PG5 laurate, PG5 dilaurate, PG5 trilaurate, PG5 tetralaurate, PG5 myristate, PG5 dimyristate, PG5 trimyristate, PG5 tetramyristate, PG5 stearate, PG5 distearate, PG5 tristearate, PG5 tetrastearate, PG5 isostearate, PG5 diisostearate, PG5 triisostearate PG5 tetraisostearate, PG5 oleate, PG5 dioleate, PG5 trioleate, PG5 tetraoleate, PG6 caprylate, PG6 dicaprylate, PG6 tricaprylate, PG6 tetracaprylate, PG6 pentacaprylate, PG6 decanoate, PG6 didecanoate, PG6 tridecanoate, PG6 tetradecanoate, PG6 pentadecanoate, PG6 laurate, PG6 dilaurate, PG6 trilaurate, PG6 tetralaurate, PG6 pentalaurate, PG6 myristate, PG6 dimyristate, PG6 trimyristate, PG6 tetramyristate, PG6 pentamyristate, PG6 stearate, PG6 distearate, PG6 tristearate, PG6 tetrastearatePG6 pentastearate, PG6 isostearate, PG6 diisostearate, PG6 triisostearate, PG6 tetraisostearate, PG6 pentaisostearate, PG6 oleate, PG6 dioleate, PG6 trioleate, PG6 tetraoleate, PG6 pentaoleate, PG10 caprylate, PG10 dicaprylate, PG10 tricaprylate, PG10 tetracaprylate, PG10 pentacaprylate, PG10 hexacaprylate, PG10 decanoate, PG10 didecanoate, PG10 tridecanoate, PG10 tetradecanoate, PG10 pentadecanoate, PG10 hexadecanoate, PG10 laurate, PG10 dilaurate, PG10 trilaurate, PG10 tetralaurate, PG10 pentalaurate, PG10 hexalaurate, PG10 myristate, PG10 dimyristate, PG10 trimyristate, PG10 tetramyristate, PG10 pentamyristate, PG10 hexamyristate, PG10 stearate, PG10 distearate, PG10 tristearate, PG10 tetrastearate, PG10 pentastearate, PG10 hexastearate, PG10 isostearate, PG10 diisostearate, PG10 triisostearate, PG10 tetraisostearate, PG10 pentaisostearate, PG10 hexaisostearate, PG10 oleate, PG10 dioleate, PG10 trioleate, PG10 tetraoleate, PG10 pentaoleate, and PG10 hexaoleate.

[0045] Advantageously, the amount of the nonionic surfactant selected from polyglycerol fatty acid esters is in the range of 3 to 9% by weight, preferably 6 to 8% by weight, relative to the total weight of the composition.

[0046] In particular, the polyglycerol fatty acid esters suitable for use in this invention are selected from: - polyglycerol mono / di / trilaurates containing 2 to 6 glycerol units; - polyglycerol mono / di / trioleates containing 2 to 6 glycerol units; - mixtures thereof.

[0047] These compounds are commercially available. For example, compounds sold by Nikkol under the following trade names may be mentioned: Sunsoft Q-12D-C (polyglycerol-2-laurate), Sunsoft A-12E or Sunsoft A-121E-C (polyglycerol-5-laurate), and Sunsoft A-173E-C (polyglycerol-5-trioleate).

[0048] Preferably, the polyglycerol fatty acid ester is selected from a mixture of at least one polyglycerol mono / di / trilaurate (e.g., polyglycerol-2-laurate) containing 2 to 6 glycerol units and at least one polyglycerol mono / di / trioleate (e.g., polyglycerol-5-trioleate) containing 2 to 6 glycerol units.

[0049] Advantageously, relative to the total weight of the composition, at least one polyglycerol mono / di / trilaurate comprising 2 to 6 glycerol units is present in an amount ranging from 2 to 6 wt%, and at least one polyglycerol mono / di / trioleate comprising 2 to 6 glycerol units is present in an amount ranging from 1 to 3 wt%.

[0050] More preferably, the polyglycerol fatty acid ester is selected from a mixture of polyglycerol-2 laurate and polyglycerol-5 trioleate, with the weight ratio of the two preferably ranging from 2:1 to 3:1.

[0051] (d) Propellant According to a first aspect, the composition of the present invention comprises (d) at least one propellant selected from alkanes, halogenated hydrocarbons, and mixtures thereof.

[0052] The propellant may contain one or more volatile substances in a gaseous state, capable of carrying other components of the cleansing oil in the form of particles, droplets, or foam. The propellant may have a boiling point in the range of about -45°C to about 5°C. When pressurized and encapsulated in a conventional aerosol container, the propellant can be liquefied. The rapid boiling of the propellant upon exiting the aerosol foam dispenser can facilitate the atomization of other components in the cleansing oil.

[0053] Examples of propellants that can be used in the anhydrous foaming compositions described herein include propane, n-butane, isobutane, n-pentane, isopentane; 1,1-difluoroethane (HFC-152a), dichlorodifluoromethane, 1,1-dichloro-1,1,2,2-tetrafluoroethane, 1-chloro-1,1-difluoro-2,2-trifluoroethane, 1-chloro-1,1-difluoroethane, 1,1-difluoroethane, monochlorodifluoromethane, trans-1,3,3,3-tetrafluoropropene (HFO-1234ze); and mixtures thereof.

[0054] Preferably, the propellant used in the anhydrous foaming composition described herein is selected from 1,1-difluoroethane, trans-1,3,3,3-tetrafluoropropylene, propane and butane, and mixtures thereof.

[0055] Advantageously, the amount of propellant present relative to the total weight of the composition ranges from 5 to 20% by weight, preferably from 5 to 15% by weight.

[0056] (e) Other surfactants According to a first aspect, the composition of the present invention comprises (e) at least one additional surfactant different from (c), such as a cationic surfactant, anionic surfactant, nonionic surfactant, or amphoteric surfactant. A single type of additional surfactant may be used, or two or more different types of additional surfactants may be used in combination.

[0057] Anionic surfactantsAnionic surfactants are preferably selected from (C6-C) 30 )alkyl sulfates, (C6-C 30 )alkyl ether sulfates, (C6-C 30 Alkyl amide ether sulfates, alkyl aryl polyether sulfates, and glycerol monoester sulfates; (C6-C 30 )alkyl sulfonates, (C6-C 30 )alkylamide sulfonates, (C6-C 30 )alkyl aryl sulfonates, α-olefin sulfonates and alkane sulfonates; (C6-C 30 )alkyl phosphates; (C6-C 30 )alkyl sulfonyl succinate, (C6-C 30 )alkyl ether sulfosuccinate and (C6-C 30 )alkylamide sulfonyl succinate; (C6-C 30 )alkyl sulfonyl acetate; (C6-C 24 Acylsarcosine salt; (C6-C 24 Acylglutamate; (C6-C 30 )alkyl polyglycoside carboxylic ether; (C6-C 30 )alkyl polyglycoside sulfosuccinate; (C6-C 30 )alkyl sulfonyl succinate; (C6-C 24 Acylhydroxyethyl sulfonate; N-(C6-C 24 Acyl taurine; C6-C 30 Fatty acid salts; cocoate or hydrogenated cocoate; (C8-C 20 Acyl lactyl lactate; (C6-C 30 )alkyl-D-galactoside uronic acid salt; polyoxyalkylene oxide (C6-C 30 )alkyl ether carboxylates; polyoxyalkylene compounds (C6-C 30 )alkyl aryl ether carboxylates; and polyoxyalkylene compounds (C6-C 30 Alkyl amide ether carboxylate.

[0058] Anionic surfactants are more preferably selected from (C6-C) 30 Alkyl ether sulfates, polyoxyalkylene oxides (C6-C) 30 Alkyl ether carboxylates and mixtures thereof. Examples include polyoxyethylene and carboxymethylated fatty acids derived from olive oil, produced by Biologia E Tecnologia under the name Olivem. The kind that's sold; sodium lauryl ether sulfate (CTFA name: sodium lauryl ether sulfate), the kind that Cognis sells under the names Texapon N40 and Texapon AOS225UP.

[0059] In at least one embodiment, the anionic surfactant is in the form of a salt, such as an alkali metal salt, for example a sodium salt; an alkaline earth metal salt, for example a magnesium salt; an ammonium salt; an amine salt; and an amino alcohol salt.

[0060] Preferably, the composition according to the invention comprises at least one (C6-C) 30 Alkyl ether sulfates, polyoxyalkylene oxides (C6-C) 30 Carboxylate salts or mixtures thereof.

[0061] Nonionic surfactants Nonionic surfactants are well-known compounds; for this purpose, see, for example, M.R. Porter’s “Handbook of Surfactants”, Blackie & Son (Glasgow and London), 1991, pp. 116–178.

[0062] Therefore, they may be selected, for example, from alcohols, α-diols, alkylphenols, and fatty acid esters, which are ethoxylated, propoxylated, or glycerolized, and have at least one fatty chain containing, for example, 8 to 30 carbon atoms, with the number of ethylene oxide or propylene oxide groups possibly ranging from 2 to 30, and the number of glycerol groups possibly ranging from 1 to 30; copolymers of ethylene oxide and / or propylene oxide; condensates of ethylene oxide and / or propylene oxide with fatty alcohols; polyethoxylated fatty amides containing, for example, 2 to 30 moles of ethylene oxide; polyglycerolized fatty amides containing, for example, 1.5 to 5 (e.g., 1.5 to 4) glycerol groups; ethoxylated fatty acid esters of sorbitol containing 2 to 30 moles of ethylene oxide; ethoxylated oils of plant origin; fatty acid esters of sucrose; fatty acid esters of polyethylene glycol; glycerol (C6-C 24 ) Alkyl polyglycosides, polyethoxylated fatty acid monoesters or diesters; N-(C6-C 24 )alkyl glucosamine derivatives; amine oxides, such as (C 10 -C 14 )alkylamine oxides or N-(C 10 -C 14 Acylaminopropylmorpholine oxide; silicone surfactants; and mixtures thereof.

[0063] The nonionic surfactant is preferably selected from monooxyalkylated, polyoxyalkylated, monoglycerolized, or polyglycerolized nonionic surfactants. The alkylene oxide unit is particularly ethylene oxide or propylene oxide units, or combinations thereof.

[0064] Examples of monooxyalkyl or polyoxyalkyl nonionic surfactants that may be mentioned include: monooxyalkyl or polyoxyalkyl (C8-C) 24Alkylphenols, saturated or unsaturated, straight or branched, monooxyalkylated or polyoxyalkylated C8-C 30 Alcohols, saturated or unsaturated, straight or branched, monooxyeninated or polyoxyeninated C8-C 30 Amides, saturated or unsaturated, straight or branched, C8-C 30 Esters of acids and polyalkylene glycols, saturated or unsaturated, straight or branched, C8-C 30 Monooxyalkyl or polyoxyalkylene esters of acids and sorbitol, saturated or unsaturated monooxyalkyl or polyoxyalkylene vegetable oils, especially condensates of ethylene oxide and / or propylene oxide, alone or as mixtures.

[0065] The nonionic surfactant preferably contains 1-100 moles of ethylene oxide and / or propylene oxide, and most preferably 2-50 moles of ethylene oxide and / or propylene oxide.

[0066] Specifically, the polyoxyethylene nonionic surfactant is selected from polyoxyethylene fatty alcohols (polyethylene glycol ethers of fatty alcohols) and polyoxyethylene fatty esters (polyethylene glycol esters of fatty acids).

[0067] Polyoxyethylene fatty alcohols (or C8-C) may be mentioned 30 Examples of alcohols include adducts of ethylene oxide and lauryl alcohol, especially those containing 2-50 ethylene oxide units, and more particularly those containing 2-20 ethylene oxide units (CTFA names: lauryl alcohol polyether-2 to lauryl alcohol polyether-20); adducts of ethylene oxide and betaine alcohol, especially those containing 2-50 ethylene oxide units, and more particularly those containing 2-20 ethylene oxide units (CTFA names: betaine alcohol polyether-2 to betaine alcohol polyether-20); adducts of ethylene oxide and cetearyl alcohol (mixtures of cetearyl alcohol and stearyl alcohol), especially those containing 2-30 ethylene oxide units (CTFA name: cetearyl alcohol polyether-20). Stearyl alcohol polyether-2 to cetearyl alcohol polyether-30; adducts of ethylene oxide and cetyl alcohol, particularly those containing 2-30 ethylene oxide units (CTFA name: cetyl alcohol polyether-2 to cetyl alcohol polyether-30); adducts of ethylene oxide and stearyl alcohol, particularly those containing 2-50 ethylene oxide units and more particularly those containing 2-20 ethylene oxide units (CTFA name: stearyl alcohol polyether-2 to stearyl alcohol polyether-20); adducts of ethylene oxide and isostearyl alcohol, particularly those containing 2-50 ethylene oxide units (CTFA name: isostearyl alcohol polyether-2 to isostearyl alcohol polyether-50); and mixtures thereof.

[0068] Examples of polyoxyethylene fatty esters that may be mentioned include adducts of ethylene oxide with esters of saturated or unsaturated fatty acids such as lauric acid, palmitic acid, oleic acid, and stearic acid, particularly those containing 2 to 100, preferably 2 to 50, and more preferably 2 to 20 oxyethylene units, such as PEG-30 dihydroxystearate, PEG-4 dilaurate, PEG-8 dioleate, PEG-40 sorbitan peroleate, PEG-7 glyceryl cocoate, PEG-20 amygdalin glyceride, PEG-25 hydrogenated castor oil, glyceryl stearate (and) PEG-100 stearate, PEG-7 olive oil ester, PEG-8 oleate, PEG-8 laurate, PEG-60 amygdalin glyceride, PEG-20 methyl glucose sesquistearate, PEG-40 stearate, PEG-100 stearate, and PEG-80 sorbitan laurate.

[0069] Preferably, the composition according to the invention comprises at least one polyoxyethylene C8-C containing 2-20 ethylene oxide units. 30 Fatty alcohols and polyoxyethylene C8-C containing 2-20 ethylene oxide units 30 Fatty esters.

[0070] cationic surfactants The cationic surfactant can be selected from optional polyoxyalkylated primary, secondary or tertiary fatty amine salts, quaternary ammonium salts and mixtures thereof.

[0071] As a non-limiting example, references may be made to cetrimonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, methylbenzyltrimethylammonium sulfate, methylbenzylammonium sulfate, stearamide-propyltrimethylammonium chloride, eicosyltrimethylammonium chloride, distearate dimethylammonium chloride, diceryldimethylammonium chloride, tricerylmethylammonium chloride, oleamide-propyldimethylamine, linoleamide-propyldimethylamine, stearamide-propyldimethylamine, oleylhydroxyethylimidazoline, stearamide-propyldimethylamine, behenamide-propyldimethylamine, behenamide-propyldiethylamine, behenamide-ethyldiethylamine, behenamide-ethyldimethylamine, arachidamide-propyldimethylamine, arachidamide-propyldiethylamine, arachidamide-ethyldiethylamine, arachidamide-ethyldimethylamine, and mixtures thereof.

[0072] Amphoteric surfactants Amphoteric or zwitterionic surfactants can be, for example, amine derivatives, such as aliphatic secondary or tertiary amines, and optionally quaternary amine derivatives, wherein the aliphatic group is a straight or branched chain containing 8 to 22 carbon atoms and at least one water-soluble anionic group (e.g., carboxylate, sulfonate, sulfate, phosphate, or phosphonate).

[0073] Amphoteric surfactants are preferably selected from betaine and carboxylated derivatives of amides.

[0074] Amphoteric surfactants of the betaine type are preferably selected from alkyl betaines, alkylamide alkyl betaines, sulfobetaines and alkylamide alkylsulfobetaines, especially (C8-C 24 )alkyl betaine, (C8-C 24 )alkyl amide (C1-C8) alkyl betaine, sulfobetaine and (C8-C 24 )alkylamide (C 1- C8)alkylsulfonyl betaine. In one embodiment, the betaine-type amphoteric surfactant is selected from (C8-C... 24 )alkyl betaine, (C8-C 24 Alkyl amide (C1-C8) alkyl sulfonyl betaine, sulfonyl betaine and phosphate betaine.

[0075] Among amide carboxyl derivatives, products sold under the name Miranol, as described in U.S. Patent Nos. 2,528,378 and 2,781,354 and classified in the CTFA Dictionary, 3rd edition, 1982, under the names of amphoteric carboxyglycinate and amphoteric carboxypropionate, with the respective structures: R1-CONHCH2CH2-N + (R2)(R3)(CH2COO - Where: R1 refers to the alkyl, heptyl, nonyl, or undecyl group of acid R1-COOH present in hydrolyzed coconut oil; R2 refers to β-hydroxyethyl; and R3 refers to carboxymethyl; and R1′-CONHCH2CH2-N(B)(C) where: B represents -CH2CH2OX', and C represents -(CH2). z -Y′, where z = 1 or 2, X′ refers to the -CH2CH2-COOH group, -CH2-COOZ', -CH2CH2-COOH, -CH2CH2-COOZ' or a hydrogen atom, Y′ refers to the -COOH, -COOZ', -CH2-CHOH-SO3Z′ or -CH2-CHOH-SO3H group, Z′ represents an alkali metal or alkaline earth metal, such as sodium ions, ammonium ions or ions derived from organic amines, and R1′ refers to the alkyl or alkyl group of acid R1′-COOH present in coconut oil or hydrolyzed linseed oil, such as C7, C9, C6. 11 Or C 13 Alkyl, C 17 Alkyl groups and their isomers, or unsaturated C 17 Group.

[0076] Amphoteric surfactants are specifically selected from (C8-C 24 )-alkyl amphoteric monoacetate, (C8-C 24 )alkyl amphoteric diacetate, (C8-C 24)alkyl amphoteric monopropionates and (C8-C 24 Alkyl amphoteric dipropionate.

[0077] For example, Rhodia Chimie could be mentioned using its product name. C2M concentrate is sold as cocoamphodiacetate.

[0078] Preferably, the additional surfactant is selected from anionic surfactants, nonionic surfactants other than (c), and mixtures thereof.

[0079] Advantageously, the additional surfactant is present in an amount ranging from 30 to 60% by weight, preferably 35 to 50% by weight, relative to the total weight of the composition.

[0080] ( f) Additional adjuvants or additives The compositions according to the invention may optionally include various auxiliaries and additives conventionally used in cleaning compositions, such as cationic / anionic / nonionic / ampholytic or zwitterionic polymers, antioxidants, chelating agents, fragrances, dispersants, conditioning agents, film-forming agents, preservatives, co-preservatives, and mixtures thereof.

[0081] Those skilled in the art can select the amount of additional adjuvants or additives so as not to adversely affect the final use of the composition according to the invention.

[0082] preparation The composition according to the invention can be prepared by mixing the essential components (a) to (e) and the optional components as described above.

[0083] The methods and apparatus for mixing the above-mentioned essential and preferred / optional components are not limited. Any conventional methods and apparatus can be used to mix the above-mentioned essential and optional components to prepare the composition according to the invention.

[0084] Beauty methods and uses The compositions according to the invention can be used to remove makeup from and / or clean keratinous substances, such as skin, including scalp; hair; eyelashes; and mucous membranes, such as lips, preferably skin, lips and eyelashes, and especially facial skin, lips and eyelashes.

[0085] Therefore, according to a second aspect, the present invention also relates to a cosmetic method for removing makeup and / or cleaning keratinous substances from keratinous substances (e.g., skin, lips, and eyelashes), comprising the step of applying a composition according to a first aspect of the present invention to the keratinous substance.

[0086] The present invention will be further described below with reference to embodiments, so that those skilled in the art can fully understand the purpose, features and effects of the present invention. However, the scope of protection of the present invention is not limited to the following embodiments.

[0087] The main raw materials used in the examples, their trade names, and suppliers are listed in Table 1. Table 1

[0088] Invention Example 1-1 1. The components contained in the anhydrous foaming compositions according to Examples 1-11 are shown in Table 2 below. All numerical values ​​for the amounts of components are based on the active raw materials as "wt%".

[0089] Taking the composition of Example 1 as an example, the composition of the present invention is prepared as follows: 1) Mix the components of the oil phase and heat to 85°C, and add the oil phase thickener; 2) Continue heating and stirring to mix evenly until the liquid is clear; 3) Cool down to 65°C, and add polyglycerol fatty acid ester and other surfactants; 4) Stir and cool to room temperature, then fill into a can with propellant to obtain the final product.

[0090] The foaming performance of the compositions of Invention Examples 1-11 is evaluated from the following three perspectives: • Foaming state: the state of the sprayed foam, the denser the foam, the better; • Foam density: reflects the foaming ability and foaming ratio, the lower the foam density, the better the foaming ability; • Foam stabilization time: the ability to maintain the foam state, the longer the foam stabilization time, the longer the normal use time.

[0091] The foaming condition evaluation procedure was as follows: Five expert panel members used a Mijes AW56-2 foam nozzle to spray foam onto a disposable weighing pan (Bikman Biotechnology, white, Chinese side). The density of the sprayed foam was scored according to the following criteria, and the average value was taken.

[0092] 5: Excellent 4: Good 3: Fair 2: Poor 1: Very Poor

[0093] The foam density measurement procedure is as follows: 1) Take three sets of 25ml clean beakers, weigh their initial weight, and record it as m1 (g); 2) Using a Mijes AW50-1 long-tube nozzle, place the nozzle at the bottom of the beaker to start spraying foam to fill the beaker. After the beaker is overfilled, remove the excess foam from the mouth of the beaker, weigh it after filling, and record it as m2 (g); 3) According to the equation: (m2-m1) / 25 (g / cm³) 3 ) Calculate the foam density; 4) Test the three sets of data and take the average value.

[0094] The evaluation results are shown in Table 2 below. Table 2

[0095] Comparative Example 1 The components contained in the anhydrous foaming composition according to Comparative Example 1 are shown in Table 3 below. All component amounts are based on active raw materials as of "wt%". The composition of Comparative Example 1 was prepared and evaluated using the same preparation method and evaluation method as the composition of the Invention Example. The evaluation results are shown in Table 3 below. Table 3 ND: Not measured.

[0096] The composition of Comparative Example 1 contains less than 1.2% by weight of oil-phase thickener relative to the total weight of the composition.

[0097] Comparative Example 2 The components contained in the anhydrous foaming composition of Comparative Example 2 are shown in Table 4 below. All component amounts are based on active raw materials as of "wt%". The composition of Comparative Example 2 was prepared using the same preparation method as the composition of the Invention Examples. The composition of Comparative Example 2 was prepared and evaluated using the same preparation method and evaluation method as the composition of the Invention Examples. The evaluation results are shown in Table 4 below. Table 4

[0098] The composition of Comparative Example 2 contains 10% by weight of dimethyl ether as a propellant relative to the total weight of the composition.

[0099] The terms "comprising" and "including" as used in this invention include both cases where the invention consists only of the included elements and cases where it includes other elements in addition to the included elements.

[0100] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. The essential technical content of the present invention is broadly defined within the scope of the claims of this application. Any technical entity or method implemented by others that is completely identical to or an equivalent modification of the technical content defined within the scope of the claims of this application shall be deemed to be covered within the scope of the claims of this application.

Claims

1. An anhydrous foaming composition comprising: (a) at least one cosmetic oil; (b) at least one oil-phase thickener present in an amount ranging from 1.2 to 12% by weight relative to the total weight of the composition; (c) at least one nonionic surfactant selected from polyglycerol fatty acid esters; (d) at least one propellant selected from alkanes, one or more of propane, n-butane, isobutane, n-pentane and isopentane; halogenated hydrocarbons, one or more of 1,1-difluoroethane, dichlorodifluoromethane, 1,1-dichloro-1,1,2,2-tetrafluoroethane, 1-chloro-1,1-difluoro-2,2-trifluoroethane, 1-chloro-1,1-difluoroethane, 1,1-difluoroethane, monochlorodifluoromethane and trans-1,3,3,3-tetrafluoropropene; mixtures thereof; and (e) at least one additional surfactant different from (c).

2. The anhydrous foaming composition according to claim 1, characterized in that, The at least one cosmetic oil mentioned in (a) is selected from vegetable oils, animal oils, mineral oils, synthetic oils, and mixtures thereof.

3. The anhydrous foaming composition according to claim 1 or 2, characterized in that, The amount of at least one cosmetic oil (a) is in the range of 20 to 70% by weight, preferably 30 to 55% by weight, relative to the total weight of the composition.

4. The anhydrous foaming composition according to any one of claims 1-3, characterized in that, The at least one oil phase thickener in (b) is selected from polymers having a urethane backbone, such as castor oil / IPDI copolymers, esters containing structural units derived from hydrogenated castor oil and structural units derived from dimer acids, such as hydrogenated castor oil / sebacic acid copolymers and hydrogenated castor oil dimer linoleate, and mixtures thereof.

5. The anhydrous foaming composition according to any one of claims 1-4, characterized in that, The amount of at least one oil phase thickener (b) is in the range of 1.5 to 10% by weight, preferably 2.5 to 7.5% by weight, relative to the total weight of the composition.

6. The anhydrous foaming composition according to any one of claims 1-5, characterized in that, The (c) at least one nonionic surfactant selected from polyglycerol fatty acid esters is selected from one or more saturated or unsaturated fatty acids comprising 6 to 20 carbon atoms, preferably 8 to 18 carbon atoms, and polyglycerol having a polyglycerol moiety derived from 2 to 8 glycerol units, preferably 2 to 6 glycerol units.

7. The anhydrous foaming composition according to any one of claims 1-6, characterized in that, The (c) at least one nonionic surfactant selected from polyglycerol fatty acid esters is selected from polyglycerol mono / di / trilaurate containing 2 to 6 glycerol units, polyglycerol mono / di / trioleate containing 2 to 6 glycerol units, and mixtures thereof.

8. The anhydrous foaming composition according to any one of claims 1-7, characterized in that, The (c) at least one nonionic surfactant selected from polyglycerol fatty acid esters is selected from a mixture of polyglycerol-2 lauryl ester and polyglycerol-5 trioleate in a weight ratio preferably ranging from 2:1 to 3:

1.

9. The anhydrous foaming composition according to any one of claims 1-8, characterized in that, The amount of at least one nonionic surfactant selected from polyglycerol fatty acid esters in (c) is in the range of 3 to 9% by weight, preferably 6 to 8% by weight, relative to the total weight of the composition.

10. The anhydrous foaming composition according to any one of claims 1-9, characterized in that, The (d) at least one propellant is selected from 1,1-difluoroethane, trans-1,3,3,3-tetrafluoropropylene, propane and butane, and mixtures thereof.

11. The anhydrous foaming composition according to any one of claims 1-10, characterized in that, The amount of at least one propellant (d) is in the range of 5 to 20% by weight, preferably 5 to 15% by weight, relative to the total weight of the composition.

12. The anhydrous foaming composition according to any one of claims 1-11, characterized in that, The at least one additional surfactant in (e) other than (c) is selected from cationic surfactants, anionic surfactants, nonionic surfactants other than (c), amphoteric surfactants, and mixtures thereof. Preferably, the at least one additional surfactant in (e) other than (c) is selected from anionic surfactants, nonionic surfactants other than (c), and mixtures thereof.

13. The anhydrous foaming composition according to any one of claims 1-12, characterized in that, The presence of at least one additional surfactant, different from (c), in (e) is in the range of 30 to 60% by weight, preferably 35 to 50% by weight, relative to the total weight of the composition.

14. A cosmetic method for removing makeup from and / or cleaning keratinous substances, comprising the step of applying a composition according to any one of claims 1 to 13 to the keratinous substance.

15. The method according to claim 14, characterized in that, The keratin material is selected from skin, lips, and eyelashes.

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