Use of apg-based microemulsions in personal care compositions

Abstract

The present invention relates to: a method of improving the deposition of a conditioner on the hair and / or skin, the method comprising applying to the hair and / or skin a personal care composition comprising a microemulsion based on an alkyl (oligo) glycoside and a conditioner; and a personal care composition, in particular a hair care composition, comprising at least one surfactant, a silicone conditioner and a microemulsion based on alkyl (oligo) glycosides.

Description

TECHNICAL FIELD

[0001] The present invention relates to the use of alkyl (oligo)glycoside (APG)-based microemulsions in personal care compositions, and also to personal care compositions, especially hair care compositions, comprising the alkyl (oligo)glycoside (APG)-based microemulsions. BACKGROUND

[0002] Personal care compositions, such as hair care compositions, typically comprise active ingredients in addition to surfactants. Conditioning agents are active ingredients that are commonly used in personal care compositions to improve the feel, texture, appearance of the skin or hair. Conditioning agents typically include natural and synthetic emollients, humectants, and occlusive agents. Suitable materials for use as conditioning agents are well known, such as silicones, oils, or waxes. Among the silicone compounds that are widely used in cosmetic and personal care formulations, the most commonly used are cyclomethicone, phenyltrimethicone, and dimethicone. In personal care formulations, particularly in hair care formulations such as hair conditioners, silicone compounds can provide various benefits, such as reduced wet combing force and increased shine of the hair. In particular, silicone compounds can provide the above benefits without promoting oiliness or greasiness, which is highly desirable in personal care formulations such as shampoos and hair conditioning formulations. However, there are drawbacks to the use of silicone compounds in personal care formulations. For example, silicone compounds are not biodegradable and are not ecologically friendly for use in personal care formulations, and some publications have suggested that silicone compounds (e.g., dimethicone) are suspected to be environmental toxins and bioaccumulators.

[0003] Some materials have been proposed as alternatives to silicones. For example, US 20100311627 Al describes microemulsions as conditioning agents in shampoo compositions. The microemulsions were shown to be effective in improving the combability of the hair, as described in the patent application. However, it has been found that shampoo compositions without silicones do not provide satisfactory feel and appearance of the hair for some people, particularly Asians with hard and thick hair.

[0004] It is challenging to reduce the dosage of active ingredients (such as conditioning agents) in personal care compositions in order to mitigate their negative or detrimental effects, because a reduction in dosage is expected to adversely affect the intended effects of those active ingredients. SUMMARY

[0005] It is an object of the present invention to provide personal care compositions that comprise a lower dosage of those active ingredients, such as conditioning agents, than conventional formulations, without adversely affecting the intended effects of those active ingredients.

[0006] The inventors found that this object can be achieved by an alkyl (oligo)glycoside based microemulsion which can significantly improve the deposition of conditioning agents on hair and thus less of those active ingredients are possible in personal care compositions.

[0007] Thus, in a first aspect, the present application relates to the use of an alkyl (oligo)glycoside based microemulsion in a personal care composition for improving the deposition of a conditioning agent on hair or skin.

[0008] In some embodiments according to the first aspect, the present application relates to the use of a microemulsion in a personal care composition for improving the deposition of a conditioning agent on hair or skin, the microemulsion comprising

[0009] (i) an alkyl (oligo)glycoside, (ii) an ester of glycerol and a saturated or unsaturated C 12-22 -fatty acid, (iii) a non-silicone oil, and (iv) water.

[0010] In some other embodiments according to the first aspect, the present application relates to the use of an alkyl (oligo)glycoside based microemulsion in a personal care composition for improving the deposition of a conditioning agent on hair or skin, the conditioning agent being selected from the group consisting of silicones and fatty esters.

[0011] In some embodiments of the present application, the present application relates to the use of an alkyl (oligo)glycoside based microemulsion in a personal care composition for improving the deposition of a conditioning agent on hair or skin, the conditioning agent being selected from the group consisting of silicones, fatty esters and hydrocarbon based oils of plant origin.

[0012] In some further embodiments according to the first aspect, the present application relates to the use of a microemulsion in a personal care composition for improving the deposition of a conditioning agent on hair or skin, the microemulsion comprising

[0013] (i) an alkyl (oligo)glycoside, (ii) an ester of glycerol and a saturated or unsaturated C 12-22 -fatty acid, (iii) a non-silicone oil, and (iv) water, the conditioning agent being selected from the group consisting of silicones and fatty esters.

[0014] In some further embodiments according to the first aspect, the present application relates to the use of a microemulsion in a personal care composition for improving the deposition of a conditioning agent on hair or skin, the microemulsion comprising

[0015] (i) an alkyl (oligo)glycoside, (ii) glycerol and esters of saturated or unsaturated C 12-22 - fatty acids, (iii) non-silicone oils, and (iv) water, The conditioning agent is selected from the group consisting of silicones, fatty esters and hydrocarbon-based oils of plant origin.

[0016] In a second aspect, the present application relates to a method of improving the deposition of a conditioning agent on hair and / or skin, the method comprising applying to the hair and / or skin a personal care composition comprising an alkyl (oligo)glycoside-based microemulsion and a conditioning agent.

[0017] In a third aspect, the present application relates to a personal care composition, in particular a hair care composition, comprising

[0018] - at least one surfactant, - a silicone conditioning agent, and - an alkyl (oligo)glycoside-based microemulsion.

[0019] Preferably, the personal care composition further comprises at least one cationic polymer.

[0020] In some embodiments according to the third aspect, the present application relates to a hair care composition, in particular a shampoo composition, comprising

[0021] - at least one surfactant, - at least one cationic polymer, - a silicone conditioning agent, and - a microemulsion comprising (i) an alkyl (oligo)glycoside, (ii) glycerol and esters of saturated or unsaturated C 12-22 - fatty acids, (iii) non-silicone oils, and (iv) water.

[0022] In some further embodiments according to the third aspect, the present application relates to a hair care composition, in particular a shampoo composition, comprising

[0023] - at least one surfactant, - at least one cationic polymer, - a silicone conditioning agent, - a microemulsion comprising (i) an alkyl (oligo)glycoside, (ii) glycerol and esters of saturated or unsaturated C 12-22 - fatty acids, (iii) non-silicone oils, and (iv) water, and - at least one conditioning agent selected from the group consisting of fatty esters.

[0024] In some further embodiments according to the third aspect, the present application relates to a hair care composition, in particular a shampoo composition, comprising

[0025] - at least one surfactant, - at least one cationic polymer, - a silicone conditioning agent, - a microemulsion comprising (i) an alkyl (oligo)glycoside, (ii) glycerol and an ester of a fatty acid, (iii) a non-silicone oil, and (iv) water, and 12-22 - an ester of a fatty acid, (iii) a non-silicone oil, and (iv) water, and - at least one conditioning agent selected from the group consisting of fatty esters and hydrocarbon-based oils of plant origin. DETAILED DESCRIPTION

[0026] The singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. The terms "comprise(s)," "comprising," "comprise," "comprising," "comprise(s)," and the like can be used interchangeably with "contain(s)," "containing," "contains," "contain," "contains," and / or "containing." That is, for example, additional components or elements can be present. The expression "consist(s) of" or cognates can be included in "comprise(s)" or cognates. The terms "include(s)," "including," and the like are to be construed in a non-limiting, open-ended fashion.

[0027] In the present text, the terms "personal care composition" and "hair care composition" are used in their broadest sense. The term "personal care composition" is intended to mean a product or composition suitable for topical application to the skin, hair or other keratinous tissue of a mammal. The term "hair care composition" is intended to mean a product or composition suitable for topical application to the hair of a mammal, including but not limited to shampoos, conditioners and hair masks.

[0028] In the present text, the term "alkyl (oligo)glycoside-based microemulsion" is also simply referred to as "microemulsion".

[0029] In the present text, the expression "essentially free of silicone" in the context of a microemulsion is intended to mean that silicone is in an extremely minimal amount and is not intentionally introduced or added, and preferably is not present at analytically detectable levels. For example, silicone, if any, can be present at a level of less than 3%, or less than 1%, less than 0.5%, or even less than 0.1% by weight of the total amount of the microemulsion.

[0030] In the present context, any percentage given for a component of a composition is calculated with reference to its active ingredients, based on the total weight of the composition, excluding impurities which can be present in commercially available sources of such components (e.g. residual solvents or by-products), unless otherwise specified. Furthermore, all ratios are by weight, unless otherwise specified.

[0031] In a first aspect, the present application provides the use of an alkyl (oligo)glycoside based microemulsion for improving deposition of a conditioning agent on hair or skin in a personal care composition, in particular a hair care composition, more particularly a shampoo composition.

[0032] Microemulsion

[0033] Alkyl (oligo)glycoside (APG) based microemulsions (also referred to herein as APG based microemulsions) are known from e.g. US20100311627 A1 and WO 2006045510 A1. For the purpose of the present application, the alkyl (oligo)glycoside based microemulsion is essentially free of silicone, in particular free of silicone.

[0034] In some embodiments according to the first aspect, the microemulsion comprises

[0035] (i) an alkyl (oligo)glycoside, (ii) an ester of glycerol and a saturated or unsaturated C 12-22 fatty acid, (iii) a non-silicone oil, and (iv) water.

[0036] In the present context, the term "alkyl (oligo)glycoside" is used synonymously with alkyl (poly)glycoside and is also abbreviated as "APG". The alkyl (oligo)glycoside can include alkyl (oligo)glycosides represented by the following formula

[0037] R 1 -O-[G] p -H (I), wherein R 1 is C 4-22 -alkyl, preferably C 8-16 -alkyl, G is a sugar residue having 5 or 6 carbon atoms, and p is a number in the range of 1 to 10.

[0038] Alkyl (oligo)glycosides can be used as sugar surfactants in microemulsions and can be derived from aldoses or ketoses having 5 or 6 carbon atoms. For example, G represents a sugar residue selected from: glucose, dextran, sucrose, fructose, idole, gulose, galactose, maltose, isomaltose, maltotriose, lactose, cellobiose, mannose, ribose, xylose, arabinose, lysose, allose, azurose, dextran, and tarose residues, preferably glucose, xylose, and arabinose residues, especially glucose residues. The exponent p in formula (I) indicates the average degree of oligomerization (DP), i.e., the distribution of monoglycosides and oligoglycosides, and is typically a decimal in the range of 1 to 10, for example, 1 to 6. Alkyl (oligo)glycosides with an average degree of oligomerization p in the range of 1.1 to 3.0 are preferred. From an application perspective, those alkyl (oligo)glycosides with an average degree of oligomerization less than 1.7, particularly in the range of 1.2 to 1.4, are preferred. APG may be present in the microemulsion in an amount of 4% to 30% by weight, preferably 5% to 25% by weight, and more preferably 10% to 20% by weight, based on the total amount of the microemulsion. Suitable alkyl glucoside surfactants include, but are not limited to, decyl glucoside, cocoyl glucoside, lauryl glucoside, or mixtures thereof.

[0039] Microemulsions contain glycerol with saturated or unsaturated C 12-22 - An ester of fatty acids, preferably selected from metaesters, particularly monoesters of glycerol. Preferably, it is a monoester of glycerol and unsaturated straight-chain fatty acids; more preferably, it is a monoester of glycerol and unsaturated C... 14-18 - Monoesters of fatty acids, and more preferably glycerol and unsaturated C 16-18 - Monoesters of fatty acids, such as glyceryl monooleate. Glyceryl esters may be present in the microemulsion in an amount of 1% to 25% by weight, preferably 4% to 20% by weight, and more preferably 5% to 15% by weight, based on the total weight of the microemulsion.

[0040] Non-silicone oils (i.e., organic oil phases) can be selected from the following groups: based on C 6-20 -Guerbet alcohol of fatty alcohols, straight-chain C 6-22 - Fatty acids and straight-chain or branched C 6-22 -Ester or branched C of fatty alcohols 6-13 -Carboxylic acid with straight-chain or branched C 6-22 -Ester of fatty alcohols, straight-chain C 6-22 -Esters of fatty acids and branched-chain alcohols, C 6-22 - Esters of fatty alcohols and / or guerbert alcohols with aromatic carboxylic acids, based on C 6-10 - Triglycerides of fatty acids, C 2-12 -Dicarboxylic acid with straight-chain or branched C 1-22 - Alcohols or C-type alcohols having 2 to 6 hydroxyl groups 2-10-Esters of polyols, vegetable oils, branched primary alcohols, substituted cyclohexanes, straight-chain and branched C-chains 6-22 - Fatty alcohol carbonates, based on guerbert carbonates of fatty alcohols having 6 to 18, preferably 8 to 10, carbon atoms, benzoic acid with straight-chain and / or branched C atoms. 6-22 -Esters of alcohols, straight-chain or branched, symmetrical or asymmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, aliphatic hydrocarbons and / or cycloalkanes, and dialkylcyclohexanes.

[0041] As non-silicone oils, fats and / or waxes can also be used alone or in mixtures with the oils specified in the preceding paragraph. Typical examples of fats are glycerides, which are solid or liquid plant or animal products consisting essentially of a mixture of glycerides of higher fatty acids. Suitable waxes are especially natural waxes, such as candelilla wax, carnauba wax, Japanese wax, esparto grass wax, cork wax, guarana wax, rice germ oil wax, sugarcane wax, small crown coconut wax, lignite wax, beeswax, shellac wax, whale wax, lanolin (wool wax), tail fat, pure terrestrial wax, natural terrestrial wax (terrestrial wax), petrolatum, paraffin wax, microcrystalline wax; chemically modified waxes (hard waxes), such as lignite wax, sassoon wax, hydrogenated jojoba wax; and synthetic waxes, such as polyalkylene wax and polyethylene glycol wax. Tocopherols and essential oils are also suitable.

[0042] Preferably, the non-silicone oil is selected from ester oils, such as isopropyl palmitate, isopropyl myristate, ethylhexyl palmitate, ethylhexyl stearate, di-n-octyl carbonate (dioctyl carbonate), myristate, myristate palmitate, myristate stearate, myristate isostearate, myristate oleate, myristate benzyl acid, myristate erucic acid, cetyl myristate, cetyl palmitate, cetyl stearate, cetyl isostearate, cetyl oleate, cetyl benzyl acid, cetyl erucic acid, stearyl myristate, stearyl palmitate, stearyl stearate, stearyl isostearate, stearyl oleate, stearyl benzyl acid, stearyl erucic acid, isostearyl myristate, isostearyl palmitate. Isostearyl stearate, isostearyl isostearyl oleate, isostearyl benzyl acid, isostearyl oleate, oleyl palmitate, oleyl stearate, isostearyl isostearyl oleate, oleyl benzyl oleate, oleyl erucic acid, oleyl myristate, oleyl palmitate, oleyl stearate, oleyl isostearyl oleate, oleyl benzyl oleate, oleyl benzyl oleate, oleyl palmitate, oleyl stearate, oleyl isostearyl oleate, oleyl benzyl oleate, oleyl benzyl oleate, oleyl palmitate, oleyl stearate, oleyl isostearyl isostearyl oleate, oleyl benzyl oleate and oleyl palmitate, dioctyl malate, propylene glycol, dimerized glycol or trimerized glycol, ether oils such as dioctyl ether (di-n-octyl ether), or mixtures thereof. For the purposes of this invention, ether oils (e.g., dioctyl ether) are preferred.

[0043] The non-silicone oil may be present in the microemulsion in an amount of 5% to 30% by weight, preferably 10% to 30% by weight, more preferably 15% to 30% by weight, or 15% to 25% by weight, based on the total weight of the microemulsion.

[0044] For microemulsions, the water is preferably demineralized or deionized. Water may be present in the microemulsion in an amount up to 80% by weight, preferably 40% to 80% by weight, more preferably 45% to 60% by weight, and particularly 45% to 55% by weight. It will be understood that water includes not only the portion added separately, but also portions derived from other components available or applicable in aqueous form.

[0045] Preferably, the microemulsion comprises or consists of the following: based on the total amount of the microemulsion.

[0046] (i) 4% to 30% by weight of alkyl (oligo)glycosides, (ii) 1% to 25% by weight of glycerol with saturated or unsaturated C 12-22 - Fatty acid esters, (iii) 5% to 30% by weight of non-silicone oil, and (iv) Up to 80% water by weight.

[0047] More preferably, the microemulsion comprises or consists of the following: based on the total amount of the microemulsion.

[0048] (i) 5% to 25% by weight, preferably 10% to 20% by weight, of alkyl (oligoglycosides), preferably C 4-22 -alkyl (oligoglycosides), (ii) 4% to 20% by weight, preferably 5% to 15% by weight, of glycerol with saturated or unsaturated C 12-22 - Fatty acid esters, (iii) 10% to 30% by weight, preferably 15% to 30% by weight, more preferably 15% to 25% by weight of non-silicone oil, and (iv) 40% to 80% by weight, preferably 45% to 60% by weight, more preferably 45% to 55% by weight of water.

[0049] More preferably, the microemulsion comprises or consists of the following: based on the total amount of the microemulsion

[0050] (i) 5% to 25% by weight, preferably 10% to 20% by weight of C 4-22 -alkyl (oligoglycoside), preferably C 8-16-alkyl (oligo)glycosides, more preferably alkyl (oligo)glycosides selected from decyl glucoside, cocoyl glucoside, lauryl glucoside, or mixtures thereof. (ii) 4% to 20% by weight, preferably 5% to 15% by weight, of glycerol with saturated or unsaturated C 12-22 -Esters of fatty acids, preferably glycerol and unsaturated C 14-18 -Esters of straight-chain fatty acids, (iii) 10% to 30% by weight, preferably 15% to 30% by weight, more preferably 15% to 25% by weight of ether oil, preferably dioctyl ether (di-n-octyl ether). (iv) 40% to 80% by weight, preferably 45% to 60% by weight, more preferably 45% to 55% by weight of water.

[0051] Specifically, the microemulsion comprises or consists of the following items: based on the total amount of the microemulsion.

[0052] (i) 5% to 25% by weight, preferably 10% to 20% by weight, of an alkyl (oligo)glycoside selected from decyl glucoside, cocoyl glucoside, lauryl glucoside, or mixtures thereof. (ii) 4% to 20% by weight, preferably 5% to 15% by weight, of glycerol and unsaturated C 14-18 -Esters of straight-chain fatty acids, (iii) 10% to 30% by weight, preferably 15% to 30% by weight, more preferably 15% to 25% by weight of dioctyl ether (di-n-octyl ether). (iv) 40% to 80% by weight, preferably 45% to 60% by weight, more preferably 45% to 55% by weight of water.

[0053] Microemulsions can be produced simply by mixing an oil body with an oil-soluble component to provide an oil phase, heating the oil phase to above the melting points of all the constituent components, and subsequently adding a phase containing an aqueous surfactant. Thermodynamically stable microemulsions then spontaneously form under stirring, if desired.

[0054] For the purposes of this invention, any known conditioning agents that can be used in personal care compositions may be mentioned.

[0055] In some embodiments, the present invention relates to the use of alkyl (oligo)glycoside-based microemulsions as described herein for improving the deposition of conditioning agents in personal care compositions, the conditioning agents being selected from the group consisting of silicones and fatty esters.

[0056] Conditioner

[0057] Suitable conditioning agents used in this invention, particularly for conditioning hair, can be silicone compounds, as well as amino-, fatty acid-, alcohol-, polyether-, epoxy-, fluorine-, glycoside-, and / or alkyl-modified silicone compounds. Silicone compounds can be present in liquid or resin form at room temperature. Suitable silicone oils include volatile cyclic and linear silicones as well as non-volatile silicones, such as dialkylsiloxanes and alkylarylsiloxanes, linear polydialkylsiloxanes such as dimethylpolysiloxane and methylphenylpolysiloxane, and their alkoxylated and / or amination derivatives, dihydroxypolydimethylsiloxane and polyphenylalkylsiloxane, and cyclic silicones such as cyclopentylsiloxane, cyclotetrasiloxane, cyclohexylsiloxane, octamethylcyclotetrasiloxane, and decamethylcyclopentylsiloxane.

[0058] Particularly suitable silicone compounds may include, for example, straight-chain or branched non-volatile polydimethylsiloxanes (PDMS); containing C 2-24 - Alkyl, alkoxy, or phenyl polydimethylsiloxanes, which are side chains of a silicone chain or at the end of a silicone chain; phenyl silicones, such as phenyl polytrimethylsiloxane, phenyl polydimethylsiloxane, phenyltrimethylsiloxydiphenyl-siloxane, diphenyl polydimethylsiloxane, diphenylmethyl-diphenyltrisiloxane, and 2-phenylethyltrimethylsiloxysilicate. Hydroxyl-terminated polydimethylsiloxanes known by the name polydimethylsiloxane alcohol (CTFA) may also be mentioned.

[0059] Preferred silicone compounds for use in this invention include cyclopentasiloxane, cyclotetrasiloxane, cyclohexylsiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, polydimethylsiloxane, polydimethylsiloxane alcohol, polydimethylsiloxane copolyol, phenyl polytrimethylsiloxane, polymethylsiloxane, hydrated silica polydimethylsiloxane (simethicone), polysilicone-15, or combinations thereof.

[0060] Suitable silicone compounds are commercially available, for example, from Shin-Etsu in its DM-fluid series, from Momentive Performance Materials Inc. in its Vicasil® series, and from Dow Corning Corporation in its Xiameter series, such as PMX-200 silicone fluid and Xiameter MEM 1785 emulsion.

[0061] Suitable fatty esters as conditioning agents are well known, and these fatty esters can be selected from non-volatile esters (e.g., monoesters, polyol esters, and dicarboxylic and tricarboxylic acid esters, dicarbonates) having a hydrocarbon chain derived from fatty acids or fatty alcohols. The hydrocarbon group of the ester may include or have other compatible functional groups covalently bonded thereto, such as amide and alkoxy moieties (e.g., ethoxy or ether bonds, etc.).

[0062] The preferred option is derived from C. 12-22 - Fatty acid esters, such as isopropyl isostearate, hexyl laurate, isohexyl laurate, isohexyl palmitate, isopropyl palmitate, decyl oleate, isodecyl oleate, hexadecyl stearate, and decyl stearate; derived from C 10-22 - Fatty esters of fatty alcohols, such as lauryl lactate, myristyl lactate, cetyl lactate, stearyl oleate, oleyl oleate, myristyl oleate, lauryl acetate, cetyl propionate, and C benzoate. 12-15 Alkyl esters, adipate oleyl esters, di-n-octyl carbonate (dioctyl carbonate); and fatty esters derived from guerbert fatty alcohols (i.e., 2-alkyl fatty alcohols) having 12 to 24 carbon atoms, such as octyldodecyl myristate. Other suitable fatty esters are those listed in the Personal Care Products Council. International Cosmetic Ingredient Dictionary and Handbook [International Cosmetic Ingredient Dictionary and Handbook] , Thirteenth edition, 2010, those described under the functional category of "esters".

[0063] Another preferred conditioning agent suitable for this invention is a plant-derived hydrocarbon-based oil, such as plant stearyl esters, such as plant stearyl oleate, plant stearyl isostearate, and lauroyl / octyldodecyl / plant stearyl glutamate, triglycerides formed from fatty acid esters of glycerol (particularly wherein the fatty acids may have a range of C4 to C5). 36 And especially C 18 To C 36These oils (with varying chain lengths) may be linear or branched, and saturated or unsaturated; they may include, in particular, heptanoic or caprylic triglycerides, shea oil, alfalfa oil, corn oil, barley oil, rye oil, kukui nut oil, passion fruit oil, shea butter, aloe vera oil, sweet almond oil, peach stone oil, peanut oil, argan oil, avocado oil, baobab oil, borage oil, broccoli oil, calendula oil, camellia oil, canola oil, carrot oil, safflower oil, linseed oil, rapeseed oil, cottonseed oil, zucchini seed oil, wheat germ oil, jojoba oil, lily oil, macadamia nut oil, corn oil, meadowfoam oil, and monocotyledonous tiacladus orientalis oil. Oils containing hazelnut, apricot kernel, walnut, olive oil, evening primrose oil, palm oil, blackcurrant seed oil, kiwi seed oil, grape seed oil, pistachio oil, winter squash oil, pumpkin oil, quinoa oil, musk rose oil, sesame oil, soybean oil, sunflower oil, castor oil, and watermelon oil, as well as mixtures thereof, or alternatives to caprylic / capric triglycerides. In particular, the most preferred plant-derived hydrocarbon-based oils include those from BASF under the trade name Cetiol. ® SB 45 is a commercially available shea butter from BASF under the trade name Lipofructyl. ® Argan LS 9779 is a commercially available argan kernel oil, and it is also available from BASF under the trade name Cegesoft. ® Commercially available plant oils for PS6.

[0064] Microemulsions can be specifically used to improve the deposition of conditioning agents in personal care compositions, which are selected from C... 12-22 - Fatty acid esters; derived from C 10-22 - Fatty esters of fatty alcohols, such as lauryl lactate, myristyl lactate, cetyl lactate, stearyl oleate, oleyl oleate, myristyl oleate, lauryl acetate, cetyl propionate, and C benzoate. 12-15 -Alkyl esters, adipate oleyl alcohol esters, di-n-octyl carbonate (dioctyl carbonate); and fatty esters derived from Guerbert fatty alcohols having 12 to 24 carbon atoms, such as octyldodecyl myristate, which are selected from cinnamic esters such as ethylhexyl methoxycinnamate and triazine derivatives such as ethylhexyl triazine ketone.

[0065] The preferred amount of microemulsion that effectively improves the deposition of conditioning agents in a personal care composition is, for example, 0.5% to 10% by weight, particularly 0.5% to 8% by weight, and more particularly 1% to 5% by weight, based on the total weight of the personal care composition.

[0066] Personal care composition

[0067] Personal care compositions typically contain a primary surfactant component as known in the art. The surfactant component may include at least one of anionic, nonionic, cationic, amphoteric, and zwitterionic surfactants. In particular, the surfactant component includes anionic surfactants and at least one of nonionic, cationic, amphoteric, and zwitterionic surfactants.

[0068] It will be understood that the surfactant components described herein are not intended to include any surfactant present in microemulsions or in the application form of conditioners.

[0069] Suitable anionic surfactants are, for example, alkyl sulfate salts, alkyl ether sulfate salts, alkyl sulfonates, alkyl aryl sulfonates, alkyl succinate salts, alkyl sulfosuccinate salts, N-alkylacylsarcosine salts, acyl taurate salts, acyl isothiosulfate salts, alkyl phosphate salts, alkyl ether phosphate salts, alkyl ether carboxylates, α-olefin sulfonates, particularly their respective alkali metal and alkaline earth metal salts, ammonium salts, or alkanolamine salts. Alkyl ether sulfate salts, alkyl ether phosphate salts, and alkyl ether carboxylates may have between 1 and 10 ethyleneoxy and / or propyleneoxy units in the molecule, preferably 1 to 3 ethyleneoxy units. Examples of anionic surfactants include, but are not limited to, sodium lauryl sulfate, ammonium lauryl sulfate, sodium lauryl ether sulfate, ammonium lauryl ether sulfate, sodium lauryl sarcosine, sodium oleyl succinate, ammonium lauryl sulfosuccinate, sodium dodecylbenzenesulfonate, triethanolamine dodecylbenzenesulfonate, or any combination thereof. Alkyl sulfate salts and / or alkyl ether sulfate salts may be specifically mentioned as anionic surfactants in personal care compositions.

[0070] The personal care composition may contain one or more anionic surfactants in an amount of 1% to 45% by weight, preferably 5% to 40% by weight, and more preferably 10% to 40% by weight, based on the total amount of the personal care composition.

[0071] Suitable nonionic surfactants are, for example, aliphatic C 10-22 - alcohol or C 6-20 - The reaction product of alkylphenols with 6 to 60 moles of alkyl oxides such as ethylene oxide and / or propylene oxide per mole of alcohol or phenol. Also suitable are alkylamine oxides, fatty acid esters of polyethylene glycol, ethoxylated fatty acid amides, alkyl polyglycosides, sorbitol ether esters, or mono- or dialkylalkanolamides, especially mono- or dialkylalkanolamides.

[0072] The personal care composition may contain one or more nonionic surfactants in an amount of 0.01% to 30% by weight, preferably 0.1% to 10% by weight, based on the total amount of the personal care composition.

[0073] Suitable cationic surfactants are quaternary ammonium compounds and quaternary ammonium esters, particularly quaternized fatty acid trialkylolamine esters. Examples of quaternary ammonium compounds include, but are not limited to, alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, and trialkylmethylammonium chloride, such as cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, distearate dimethylammonium chloride, lauryldimethylammonium chloride, lauryldimethylbenzylammonium chloride, and tricetylmethylammonium chloride, as well as imidazole compounds known under the INCI names Quaternary Ammonium Salt-27, Quaternary Ammonium Salt-83, and Quaternary Ammonium Salt-87. The alkyl chain of the above surfactants preferably has 10 to 18 carbon atoms. Examples of quaternary ammonium esters include, but are not limited to, quaternized esters of fatty acids with triethanolamine, quaternized esters of fatty acids with diethanolalkylamine, and quaternized esters of fatty acids with 1,2-dihydroxypropyldialkylamine.

[0074] Personal care compositions may contain one or more cationic surfactants in an amount of 0% to 5% by weight, preferably 0.01% to 1% by weight, based on the total amount of the personal care composition.

[0075] Suitable amphoteric or amphoteric surfactants are, for example, alkyl betaine, alkylamidopropyl betaine, alkyl sulfobetaine, alkyl glycinate, alkyl carboxyglycinate, alkyl amphoteric acetate or propionate, alkyl amphoteric diacetate or dipropionate. Examples of amphoteric surfactants include, but are not limited to, cocamidopropyl betaine, lauryl betaine, cocamidopropyl betaine, or sodium cocamidopropyl propionate.

[0076] The personal care composition may contain one or more amphoteric or zwitterionic surfactants in an amount of 0.1% to 20% by weight, preferably 3% to 10% by weight, based on the total amount of the personal care composition.

[0077] Personal care compositions may further comprise cationic polymers. Preferably, the personal care composition comprises at least one cationic polymer. Suitable cationic polymers are, for example, homopolymers or copolymers of esters or amide derivatives of acrylic acid or methacrylic acid (e.g., INCI: polyquaternium-7), homopolymers of methacryloyl ethyl trimethylammonium chloride (INCI: polyquaternium-37), quaternary copolymers of hydroxyethyl cellulose and diallyl dimethylammonium chloride (INCI: polyquaternium-4), quaternized ammonium salts of hydroxyethyl cellulose polymers modified with trimethylammonium-substituted epoxides (INCI: polyquaternium-10, polyquaternium-67), depolymerized guar gum derivatives that have been quaternized (INCI: guar hydroxypropyl trimethylammonium chloride), amphoteric copolymers (INCI: polyquaternium-74), quaternized guar gum derivatives, and homopolymers of diallyl dimethylammonium chloride (DADMAC) (INCI: polyquaternium-6).

[0078] The personal care composition may contain one or more cationic polymers in an amount of 0.01% to 5% by weight, preferably 0.1% to 2% by weight, based on the total amount of the personal care composition.

[0079] The personal care compositions according to the invention may further comprise one or more beneficial agents that can provide positive and / or beneficial effects on the treated substrate (e.g., hair and skin). Those skilled in the art can select suitable such optional ingredients for the intended application based on common sense in the field of formulating personal care compositions such as shampoos, shower gels, and liquid hand soaps, and the extensive literature associated with them. In some embodiments, the personal care compositions according to the invention further comprise one or more beneficial agents, such as emollients, moisturizers, conditioning agents other than those described above, such as skin care agents or hair conditioners; vitamins or derivatives thereof, such as B-complex vitamins, including thiamine, niacin (... Vitamins (such as niacin), biotin, pantothenic acid, choline, riboflavin, vitamin B6, vitamin B12, pyridoxine, inositol, carnitine, vitamin A, vitamin C, vitamin D, vitamin E, vitamin K and their derivatives such as vitamin A palmitate, and provitamins such as panthenol (provitamin B5), panthenol triacetate and mixtures thereof; antioxidants; free radical scavengers; natural or synthetic abrasives; dyes; hair coloring agents; bleaching agents; hair bleaching agents; antimicrobial agents; antibacterial agents, such as... Bacitracin, erythromycin, neomycin, tetracycline, chlortetracycline, benzyl chloride, phenol, p-chloro-meta-xylenol (PCMX), triclocarban (TCC), chlorhexidine gluconate (CHG), zinc pyrithione, selenium disulfide; antifungal agents; melanin regulators; tanning accelerators; depigmenting agents, such as retinoids (e.g., retinol), kojic acid and its derivatives (e.g., kojic acid dipalmitate), hydroquinone and its derivatives (e.g., arbutin), tranexamic acid, vitamins (e.g., niacin, vitamin C and its derivatives), azelaic acid, p- Lacertia, licorice, extracts from plants (such as chamomile and green tea), with retinol, kojic acid and hydroquinone being preferred; skin brightening agents such as hydroquinone, catechols and their derivatives, ascorbic acid and its derivatives; skin pigments such as dihydroxyacetone; fat regulators; weight loss agents; anti-acne agents; anti-seborrheic agents; anti-aging agents; anti-wrinkle agents; keratolytic agents; anti-inflammatory agents; anti-acne agents such as retinoic acid, isotretinoin, morphine, adapalene, tazarotene, azelaic acid, retinol, salicylic acid, peroxide Benzoyl, resorcinol; antibiotics such as tetracycline and its isomers, erythromycin; anti-inflammatory agents such as ibuprofen, naproxen, hetrophen; plant extracts such as alder, arnica, artemisia capillaris, asarum root, calendula, chamomile, cnidium, plants of the Boraginaceae family, fennel, gallnut, hawthorn, houttuynia cordata, plants of the Hypericum genus, jujube, kiwifruit, licorice, magnolia, olive, peppermint, philodendron, sage, white bamboo; imidazoles such as ketoconazole and neoconazole (elubiol); air fresheners; healing agents; vascular protectants;Medications used to relieve dandruff (anti-dandruff agents), seborrheic dermatitis, or psoriasis, such as pyrithione salts, which are formed from heavy metals such as zinc, tin, cadmium, magnesium, aluminum, sodium, and zirconium, such as zinc pyrithione; shale oil and its derivatives such as sulfonated shale oil; selenium sulfide; sulfur; salicylic acid; coal tar; povidone-iodine; imidazoles such as ketoconazole, dichlorophenylimidazolidinyl ether, clotrimazole, itraconazole, miconazole, clomiphene, tiaconazole, thioconazole, butoconazole, fluconazole, miconazole nitrite, and any possible stereoisomers and their derivatives. Drugs such as anthraquinone, octopirox, selenium sulfide, ciclopiroxamine, anti-psoriasis agents such as vitamin D analogs, such as calcipotriol, calcitriol, and tacaleitrol, vitamin A analogs such as vitamin A esters (including vitamin A palmitate), retinoids, retinol, and retinoic acid, corticosteroids such as hydrocortisone, clobetasol butyrate, and clobetasol propionate; antiperspirants or deodorants such as aluminum oxychloride and aluminum zirconium chlorohydrates; immunomodulators; nourishing agents; depilatory agents such as calcium thioglycolate, magnesium thioglycolate, potassium thioglycolate, and strontium thioglycolate; agents for combating hair loss; reducing agents for permanent perming; reflective agents such as mica, alumina, calcium silicate, glycol dioleate, glycol distearate, silica, and sodium magnesium fluorosilicate; essential oils and fragrances. ;

[0080] It will be understood that the personal care composition will also contain water, in addition to water contained in microemulsions and possibly in conditioning agents, as well as any other optional active ingredients or additives.

[0081] The inventors have discovered that microemulsions effectively increase the deposition of conditioning agents on the hair by at least 10%, and in some cases even by 150%, and several times more, compared to the corresponding deposition in the absence of microemulsions. A reduction in the use of those active ingredients in personal care compositions can be expected. This reduction in the dosage of conditioning agents in personal care compositions is advantageous because it mitigates the negative or harmful effects of those ingredients.

[0082] In a second aspect, the present invention relates to a method for improving the deposition of a conditioning agent on hair and / or skin, the method comprising applying a personal care composition to hair and / or skin comprising an alkyl (oligo)glycoside-based microemulsion and a conditioning agent. Any general description and preferences described above with respect to the microemulsion, conditioning agent, and personal care composition according to a first aspect of the invention may be applied herein without limitation.

[0083] In a third aspect, the present invention relates to a personal care composition, particularly a hair care composition, comprising...

[0084] - At least one surfactant, - Silicone conditioner, and - Microemulsions based on alkyl (oligo)glycosides.

[0085] Preferably, the personal care composition further comprises at least one cationic polymer.

[0086] Silicone conditioning agents may be present in personal care compositions, such as hair care compositions, in an amount of 0.01% to 10% by weight, more preferably less than 5% by weight, based on the total amount of the personal care composition.

[0087] In particular, personal care compositions such as hair care compositions may contain

[0088] - At least one surfactant, - Silicone conditioner, and - A microemulsion comprising (i) alkyl (oligo)glycosides, (ii) glycerol and saturated or unsaturated C 12-22 -Esters of fatty acids, (iii) non-silicone oils, and (iv) water.

[0089] Preferably, the personal care composition further comprises at least one cationic polymer.

[0090] Silicone conditioning agents may be present in personal care compositions, such as hair care compositions, in an amount of 0.01% to 10% by weight, preferably less than 5% by weight, based on the total amount of the personal care composition.

[0091] More specifically, hair care compositions may contain

[0092] - At least one surfactant, - At least one cationic polymer, - Silicone conditioner, and - A microemulsion comprising or consisting of: (i) 4% to 30% by weight, preferably 5% to 25% by weight, more preferably 10% to 20% by weight of C 4-22 -alkyl (oligoglycoside), preferably C 8-16 -alkyl (oligo)glycoside, (ii) 4% to 20% by weight, preferably 5% to 15% by weight, of glycerol with saturated or unsaturated C 12-22 -Esters of fatty acids, preferably glycerol and unsaturated C 14-18- An ester of a straight-chain fatty acid, (iii) 10% to 30% by weight, preferably 15% to 30% by weight, more preferably 15% to 25% by weight of an ether oil, preferably dioctyl ether (di-n-octyl ether), and (iv) 40% to 80% by weight, preferably 45% to 60% by weight, and 45% to 55% by weight of water.

[0093] Preferably, the silicone conditioner is present in the hair care composition in an amount of 0.01% to 10% by weight, more preferably less than 5% by weight, based on the total amount of the personal care composition.

[0094] In particular, hair care compositions may contain

[0095] - At least one surfactant, - At least one cationic polymer, - Silicone conditioning agent - A microemulsion comprising (i) alkyl (oligo)glycosides, (ii) glycerol and saturated or unsaturated C 12-22 - Fatty acid esters, (iii) non-silicone oils, and (iv) water, and - At least one conditioning agent selected from fatty esters.

[0096] Preferably, the silicone conditioner is present in the hair care composition in an amount of 0.01% to 10% by weight, more preferably less than 5% by weight, based on the total amount of the personal care composition.

[0097] More specifically, hair care compositions may contain

[0098] - At least one surfactant, - At least one cationic polymer, - Silicone conditioning agent - A microemulsion comprising or consisting of: (i) 4% to 30% by weight, preferably 5% to 25% by weight, more preferably 10% to 20% by weight of C 4-22 -alkyl (oligoglycoside), preferably C 8-16 -alkyl (oligo)glycosides, more preferably decyl glucoside, cocoyl glucoside, lauryl glucoside or mixtures thereof, (ii) 4% to 20% by weight, preferably 5% to 15% by weight, of glycerol with saturated or unsaturated C 12-22 -Esters of fatty acids, preferably glycerol and unsaturated C 14-18- An ester of a straight-chain fatty acid, (iii) 10% to 30% by weight, preferably 15% to 30% by weight, more preferably 15% to 25% by weight of an ether oil, preferably dioctyl ether (di-n-octyl ether), and (iv) 40% to 80% by weight, preferably 45% to 60% by weight, and 45% to 55% by weight of water, and - At least one conditioning agent selected from fatty esters.

[0099] Preferably, the silicone conditioner is present in the hair care composition in an amount of 0.01% to 10% by weight, more preferably less than 5% by weight, based on the total amount of the personal care composition.

[0100] Hair care compositions can be any hair treatment product, especially shampoo compositions.

[0101] At least one surfactant, conditioner, and microemulsion is one of those described above with respect to the first aspect of the invention.

[0102] The personal care composition may further comprise one or more beneficial agents as described above with respect to the first aspect of the invention.

[0103] In addition, the personal care composition will contain water, in addition to water contained in microemulsions and possibly in conditioning agents, as well as any other optional active ingredients or additives.

[0104] In some illustrative embodiments, the personal care composition, particularly the hair care composition, may include the following: based on the total amount of the personal care composition.

[0105] - At least one surfactant, comprising 5% to 50% by weight, preferably 10% to 30% by weight. - 0.1% to 5% by weight, preferably 1% to 3% by weight, of a silicone conditioning agent. - 0.5% to 10% by weight, preferably 0.5% to 8% by weight, and even more preferably 1% to 5% by weight of alkyl (oligo)glycoside-based microemulsions, and Add water to 100%.

[0106] Preferably, the personal care composition further comprises at least one cationic polymer in an amount of 0.01% to 5% by weight, preferably 0.1% to 2% by weight, based on the total amount of the personal care composition.

[0107] In some specific embodiments, the hair care composition may include the following: based on the total amount of the personal care composition.

[0108] - At least one surfactant, comprising 5% to 50% by weight, preferably 10% to 30% by weight. - 0.1% to 5% by weight, preferably 1% to 3% by weight, of a silicone conditioning agent. - A microemulsion comprising (i) alkyl (oligo)glycosides, (ii) glycerol and saturated or unsaturated C 12-22 -Esters of fatty acids, preferably glycerol and unsaturated C 14-18 -Esters of straight-chain fatty acids, (iii) non-silicone oils, preferably ether oils, more preferably dioctyl ethers (di-n-octyl ethers), and (iv) water, and - 25% to 80%, preferably 35% to 75% by weight of additional water.

[0109] Preferably, the personal care composition further comprises at least one cationic polymer in an amount of 0.01% to 5% by weight, preferably 0.1% to 2% by weight, based on the total amount of the personal care composition.

[0110] Example

[0111] Various embodiments are listed below. It will be understood that the embodiments listed below can be combined with all aspects of the invention and other embodiments.

[0112] 1. A method for improving the deposition of a conditioning agent on hair and / or skin, the method comprising applying a personal care composition to hair and / or skin, the personal care composition comprising an alkyl (oligo)glycoside-based microemulsion and a conditioning agent.

[0113] 2. Use of alkyl (oligo)glycoside-based microemulsions in personal care compositions to improve the deposition of conditioning agents on hair or skin.

[0114] 3. The method or use according to Example 1 or 2, wherein the microemulsion comprises

[0115] (i) Alkyl (oligo)glycosides, (ii) Glycerol with saturated or unsaturated C 12-22 - Fatty acid esters, (iii) Non-silicone oils, and (iv) Water.

[0116] 4. The method or use according to Example 3, wherein the microemulsion comprises or consists of the following: based on the total amount of the microemulsion

[0117] (i) 4% to 30% by weight of alkyl (oligo)glycosides, (ii) 1% to 25% by weight of glycerol with saturated or unsaturated C 12-22 - Fatty acid esters, (iii) 5% to 30% by weight of non-silicone oil, and (iv) Up to 80% water by weight.

[0118] 5. The method or use according to Example 4, wherein the microemulsion comprises (i) 5% to 25% by weight of alkyl (oligo)glycosides.

[0119] 6. The method or use according to Example 5, wherein the microemulsion comprises 10% to 20% by weight of alkyl (oligo)glycosides.

[0120] 7. The method or use according to any one of Examples 4 to 6, wherein the microemulsion comprises (ii) 4% to 20% by weight of glycerol and saturated or unsaturated C 12-22 -Esters of fatty acids.

[0121] 8. The method or use according to Example 7, wherein the microemulsion comprises (ii) 5% to 15% by weight of glycerol and saturated or unsaturated C 12-22 -Esters of fatty acids.

[0122] 9. The method or use according to any one of Examples 3 to 7, wherein the glycerol is reacted with saturated or unsaturated C 12-22 - Fatty acid esters are glycerol and unsaturated C. 14-18 - Monoesters of fatty acids.

[0123] 10. The method or use according to any one of Examples 4 to 9, wherein the microemulsion comprises (iii) 10% to 30% by weight of a non-silicone oil.

[0124] 11. The method or use according to Example 10, wherein the microemulsion comprises (iii) 15% to 30% by weight of a non-silicone oil.

[0125] 12. The method or use according to Example 11, wherein the microemulsion comprises (iii) 15% to 25% by weight of a non-silicone oil.

[0126] 13. The method or use according to any one of Examples 3 to 12, wherein the non-silicone oil is an ether oil.

[0127] 14. The method or use according to any one of Examples 4 to 13, wherein the microemulsion comprises (iv) 40% to 80% water by weight.

[0128] 15. The method or use according to Example 14, wherein the microemulsion comprises (iv) 45% to 60% water by weight.

[0129] 16. The method or use according to any one of Examples 1 to 15, wherein these alkyl (oligo)glycosides are represented by the following formula

[0130] R 1 -O-[G] p -H (I), in R 1 It is C 4-22 -alkyl, preferably C 8-16 -alkyl, G is a sugar residue with 5 or 6 carbon atoms, and p is a number in the range of 1 to 10.

[0131] 17. The method or use according to Example 16, wherein the sugar residue is selected from the group consisting of glucose, dextran, sucrose, fructose, idole, gulose, galactose, maltose, isomaltose, maltotriose, lactose, cellobiose, mannose, ribose, xylose, arabinose, lysoose, allose, azoose, dextran, and tarose residues, preferably glucose, xylose, and arabinose residues, especially glucose residues.

[0132] 18. The method or use according to any one of Examples 1 to 17, wherein the conditioner is selected from the group consisting of silicones, fatty esters and plant-derived hydrocarbon-based oils.

[0133] 19. The method or use according to Example 18, wherein the silicones are selected from the group consisting of volatile and non-volatile cyclic and linear silicones, preferably from the group consisting of: cyclopentasiloxane, cyclotetrasiloxane, cyclohexylsiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, polydimethylsiloxane, polydimethylsiloxane alcohol, polydimethylsiloxane copolyol, phenyl polytrimethylsiloxane, polymethylsiloxane, hydrated silica polydimethylsiloxane, polysilicon-15, and any combination thereof.

[0134] 20. The method or use according to Example 18, wherein these fatty esters are selected from the group consisting of: derived from C 12-22 - Fatty acid fatty esters, derived from C 10-22 - Fatty esters of fatty alcohols, and fatty esters derived from Gerbert fatty alcohols having 12 to 24 carbon atoms.

[0135] 21. The method or use according to any one of Examples 1 to 20, wherein the microemulsion is used in an amount of 0.5% to 10% by weight based on the total weight of the personal care composition.

[0136] 22. The method or use according to Example 21, wherein the microemulsion is used in an amount of 0.5% to 8% by weight.

[0137] 23. The method or use according to Example 22, wherein the microemulsion is used in an amount of 1% to 5% by weight.

[0138] 24. A personal care composition, particularly a hair care composition, comprising...

[0139] - At least one surfactant, - Silicone conditioner, and - Microemulsions based on alkyl (oligo)glycosides as defined in any of Examples 1 to 17.

[0140] 25. The personal care composition according to Example 24, further comprising at least one cationic polymer.

[0141] 26. The personal care composition according to Example 24 or 25, wherein the microemulsion is present in an amount of 0.5% to 10% by weight based on the total weight of the personal care composition.

[0142] 27. The personal care composition according to Example 26, wherein the microemulsion is present in an amount of 0.5% to 8% by weight.

[0143] 28. The personal care composition according to Example 27, wherein the microemulsion is present in an amount of 1% to 5% by weight.

[0144] 29. The personal care composition according to any one of Examples 24 to 28, wherein the silicone conditioner is selected from the group consisting of volatile and non-volatile cyclic and linear silicones, preferably selected from the group consisting of: cyclopentasiloxane, cyclotetrasiloxane, cyclohexylsiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, polydimethylsiloxane, polydimethylsiloxane alcohol, polydimethylsiloxane copolyol, phenyl polytrimethylsiloxane, polymethylsiloxane, hydrated silica polydimethylsiloxane, polysiloxane-15, and any combination thereof.

[0145] 30. The personal care composition according to any one of Examples 24 to 29, wherein the silicone conditioner is present in an amount of 0.1% to 10% by weight based on the total weight of the personal care composition.

[0146] 31. The personal care composition according to Example 30, wherein the silicone conditioner is present in an amount of less than 5% by weight.

[0147] 32. The personal care composition according to any one of Examples 25 to 31, wherein the cationic polymer is present in an amount of 0.01% to 5% by weight based on the total amount of the personal care composition.

[0148] 33. The personal care composition according to Example 32, wherein the cationic polymer is present in an amount of 0.1% to 2% by weight.

[0149] 34. The personal care composition according to any one of Examples 24 to 33, wherein the at least one surfactant is selected from anionic, nonionic, and amphoteric or zwitterionic surfactants.

[0150] Example

[0151] The various aspects of the invention will be more fully illustrated by the following examples, which are presented to illustrate certain aspects of the invention and should not be construed as limiting it.

[0152] Preparation of shampoo formulations: - Heat the water to 80°C and add the other components of phase A, stirring until clear and homogeneous; - Add the components of phase B to phase A one by one and stir until it is transparent and homogeneous; - Stop heating and cool the mixture of phases A and B to room temperature, then add the components of phase C one by one and stir until it is transparent and homogeneous.

[0153] General procedures for characterizing sediments

[0154] Material Cleaned Chinese hair: 15 cm / 2 g Shampoo testing

[0155] deal with The hair strands were treated with the test shampoo (0.5 g / 2 g hair) and then incubated in an oven at 37°C for 1 hour, followed by rinsing for 1 minute. Repeat the above steps 6 times; The hair strands were cut into 5 mm segments and used as test samples for NMR determination.

[0156] Quantitative NMR determination of conditioner deposition

[0157] Device Bruker 1 GHz AEON NMR spectrometer Material Deuterated chloroform (CDCl3) with TDME NMR tube 5 mm Piper Petri Dishes Sample preparation (solvent method) Transfer 1 g of sample to a 250 ml bottle and mix with 100 ml of n-pentane. Shake for 1 hour and wait for phase separation; Transfer the solvent to a Piper dish and allow it to dry completely at room temperature; The residue was dissolved in 1 ml of deuterated chloroform with TDME as an internal reference standard, and then transferred to an NMR tube. Each sample was processed three times in parallel, and each sample was extracted twice.

[0158] Inspect all glass materials and reagents used for silicone oil contamination. The limit of detection is 0.01 mg / kg, and the limit of quantitation is 0.02 mg / kg.

[0159] The formulations of the tested shampoos are shown in Tables 1 to 4 below, and the microemulsions used are Plantasil, which is commercially available from BASF. ® Micro has the following composition:

[0160] Table 1. Formulations of Shampoos Containing Silicone Conditioners

[0161] 1 Based on the weight percentage provided by commercial products Silicone Conditioner The deposition of silicone on hair treated with shampoo C1 (without microemulsion) was 23.3 mg / kg, as measured by NMR, while the deposition of silicone on hair treated with shampoo E1 (containing microemulsion) increased to 130.2 mg / kg. With the aid of microemulsion, silicone deposition increased approximately 4.6 times.

[0162] Table 2. Shampoo Ingredients Containing Fatty Acid Ester Conditioners

[0163] 1 Based on the weight percentage provided by commercial products Fat ester conditioner Octyldodecyl myristate deposition on hair treated with shampoo C2 (without microemulsion) was 5.9 mg / kg, as measured by NMR, while deposition on hair treated with shampoo E1 (containing microemulsion) increased to 17.2 mg / kg. With the aid of microemulsion, octyldodecyl myristate deposition increased by approximately 1.9 times.

[0164] Table 3. Shampoo formulations containing ester-based conditioning agents

[0165] 1 Based on the weight percentage provided by commercial products Fat ester conditioner The deposition of dioctyl carbonate on hair treated with shampoo C3 (without microemulsion) was 186.8 mg / kg, as measured by NMR, while the deposition of dioctyl carbonate on hair treated with shampoo E3 (containing microemulsion) increased to 239.8 mg / kg. The deposition of dioctyl carbonate increased by approximately 28% with the aid of microemulsions.

[0166] Although the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the methods and apparatus of the invention without departing from the spirit and scope thereof. Therefore, the invention is intended to include modifications and variations within the scope of the appended claims and their equivalents.

[0167] Table 4. Shampoo formulations containing plant-derived hydrocarbon-based oils as conditioning agents

[0168] 1 Based on the weight percentage provided by commercial products Hydrocarbon-based oils from plant sources as conditioning agents Shea butter (Cetiol SB 45) deposited at 74.0 mg / kg on hair treated with shampoo C4 (without microemulsions), as measured by NMR. However, the deposition of shea butter increased to 98.0 mg / kg on hair treated with shampoo E4 (containing microemulsions). The deposition of the conditioner increased by approximately 32% due to the microemulsions.

[0169] Table 5. Shampoo formulations containing plant-derived hydrocarbon-based oils as conditioning agents

[0170] 1 Based on the weight percentage provided by commercial products Hydrocarbon-based oils from plant sources as conditioning agents Lipofuctyl Argan LS 9779 deposited at 48.0 mg / kg on hair treated with shampoo C5 (without microemulsions), as measured by NMR, while shea butter deposited at 60.0 mg / kg on hair treated with shampoo E5 (containing microemulsions). The deposition of the conditioner increased by approximately 25% due to the microemulsions.

[0171] Table 6. Shampoo formulations containing plant-derived hydrocarbon-based oils as conditioning agents

[0172] 1 Based on the weight percentage provided by commercial products Hydrocarbon-based oils from plant sources as conditioning agents The deposition of plant oil (Cegesoft PS 6) on hair treated with shampoo C6 (without microemulsion) was 109.0 mg / kg, as measured by NMR, while the deposition of shea butter on hair treated with shampoo E6 (containing microemulsion) increased to 155.0 mg / kg. The deposition of the conditioner increased by approximately 42% due to the microemulsion.

Claims

1. A method for improving the deposition of a conditioning agent on hair and / or skin, the method comprising applying a personal care composition to hair and / or skin, the personal care composition comprising an alkyl (oligo)glycoside-based microemulsion and a conditioning agent.

2. Use of alkyl (oligo)glycoside-based microemulsions in personal care compositions for improving the deposition of conditioning agents on hair or skin.

3. The method or use according to claim 1 or 2, wherein, This microemulsion contains (i) Alkyl (oligo)glycosides, (ii) Glycerol with saturated or unsaturated C 12-22 - Fatty acid esters, (iii) Non-silicone oils, and (iv) Water.

4. The method or use according to claim 3, wherein, The microemulsion comprises or consists of the following items: based on the total amount of the microemulsion. (i) 4% to 30% by weight of alkyl (oligo)glycosides, (ii) 1% to 25% by weight of glycerol with saturated or unsaturated C 12-22 - Fatty acid esters, (iii) 5% to 30% by weight of non-silicone oil, and (iv) Up to 80% water by weight.

5. The method or use according to claim 4, wherein, The microemulsion comprises or consists of the following items: based on the total amount of the microemulsion. (i) 5% to 25% by weight, preferably 10% to 20% by weight, of alkyl (oligo)glycosides. (ii) 4% to 20% by weight, preferably 5% to 15% by weight, of glycerol with saturated or unsaturated C 12-22 -Esters of fatty acids, preferably glycerol and unsaturated C 14-18 - Monoesters of fatty acids, (iii) 10% to 30% by weight, preferably 15% to 30% by weight, of non-silicone oil, preferably ether oil, and (iv) 40% to 80% by weight, preferably 45% to 60% by weight of water.

6. The method or use according to any one of claims 1 to 5, wherein, These alkyl (oligoglycosides) are represented by the following formula. R 1 -O-[G] p -H (I), in R 1 It is C 4-22 -alkyl, preferably C 8-16 -alkyl, G is a sugar residue with 5 or 6 carbon atoms, and p is a number in the range of 1 to 10.

7. The method or use according to claim 6, wherein, The sugar residue is selected from the group consisting of: glucose, dextran, sucrose, fructose, idose, gulose, galactose, maltose, isomaltose, maltotriose, lactose, cellobiose, mannose, ribose, xylose, arabinose, lysoose, allose, azoose, dextran, and tarose residues, with preference for glucose, xylose, and arabinose residues, especially glucose residues.

8. The method or use according to any one of claims 1 to 7, wherein, This conditioner is selected from the group consisting of silicones, fatty esters, and plant-derived hydrocarbon-based oils.

9. The method or use according to claim 8, wherein, These silicones are selected from the group consisting of volatile and non-volatile cyclic and linear silicones, and preferably from the group consisting of: cyclopentasiloxane, cyclotetrasiloxane, cyclohexylsiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, polydimethylsiloxane, polydimethylsiloxane alcohol, polydimethylsiloxane copolyol, phenyl polytrimethylsiloxane, polymethylsiloxane, hydrated silica polydimethylsiloxane, polysilicon-15, and any combination thereof.

10. The method or use according to claim 8, wherein, These fatty esters were selected from the group consisting of: derivatives of C 12-22 - Fatty acid fatty esters, derived from C 10-22 - Fatty esters of fatty alcohols, and fatty esters derived from Gerbert fatty alcohols having 12 to 24 carbon atoms.

11. The method or use according to any one of claims 1 to 10, wherein, The microemulsion is used in an amount of 0.5% to 10% by weight, particularly 0.5% to 8% by weight, and even more particularly 1% to 5% by weight, based on the total weight of the personal care composition.

12. A personal care composition, particularly a hair care composition, comprising... - At least one surfactant, - Silicone conditioner, and - Microemulsions based on alkyl (oligo)glycosides as defined in any one of claims 1 to 7.

13. The personal care composition of claim 12, further comprising at least one cationic polymer.

14. The personal care composition according to claim 12 or 13, wherein, The microemulsion is present in an amount of 0.5% to 10% by weight, particularly 0.5% to 8% by weight, and even more particularly 1% to 5% by weight, based on the total weight of the personal care composition.

15. The personal care composition according to any one of claims 12 to 14, wherein, The silicone conditioner is selected from the group consisting of volatile and non-volatile cyclic and linear silicones, and preferably from the group consisting of: cyclopentasiloxane, cyclotetrasiloxane, cyclohexylsiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, polydimethylsiloxane, polydimethylsiloxane alcohol, polydimethylsiloxane copolyol, phenyl polytrimethylsiloxane, polymethylsiloxane, hydrated silica polydimethylsiloxane, polysilicon-15, and any combination thereof.

16. The personal care composition according to any one of claims 12 to 15, wherein, The silicone conditioning agent is present in an amount of 0.1% to 10% by weight, preferably less than 5% by weight, based on the total weight of the personal care composition.

17. The personal care composition according to any one of claims 13 to 16, wherein, The cationic polymer is present in an amount of 0.01% to 5% by weight, preferably 0.1% to 2% by weight, based on the total amount of the personal care composition.

18. The personal care composition according to any one of claims 12 to 17, wherein, The at least one surfactant is selected from anionic, nonionic, and amphoteric or zwitterionic surfactants.

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