Stabilizer concentrate for wax dispersions

Abstract

The present invention relates to a stabilizer concentrate that improves the stability of waxes of monoesters and / or diesters of monoethylene glycol and / or diethylene glycol in the form of wax dispersions in personal care compositions, the stabilizer concentrate comprising hydrogenated castor oil and a selected nonionic emulsifier, in particular an alkyl polyglucoside, and is free of anionic surfactants.

Description

[Technical field]

[0001] The present invention relates to a stabilizer concentrate capable of improving the stability of waxes of mono- and / or diesters of monoethylene glycol and / or diethylene glycol, used in the form of a wax dispersion in a personal care dispersion, said stabilizer concentrate comprising hydrogenated castor oil and a non-ionic emulsifier and free of anionic surfactants; furthermore, the present invention relates to the use of such concentrates and their preparation methods, as well as to personal care compositions containing them and to methods for preparing personal care compositions. [Background technology]

[0002] prior art The use of wax dispersions based on alkylene glycol fatty acid esters is a long-established known technique for providing personal care products with attractive, rich, and interesting appearance.Depending on the desired appearance properties, wax dispersions can be modified to produce pearlescent properties with high brightness and / or opalescent properties with high whiteness.For intended use in personal care compositions, wax dispersions need to have high compatibility with other ingredients, excellent physical stability, and especially high performance in storage stability and appearance properties.In addition, manufacturers of personal care compositions want to have wax dispersions that are easy to add during processing without time-consuming and energy-consuming manufacturing steps such as melting.

[0003] A preferred option is to use wax in the form of a premixed wax dispersion. European Patents EP 0581193 B1 and EP 0568848 B1 disclose flowable concentrated pearling formulations containing large amounts of fatty acid glycol esters, betaines as zwitterionic surfactants, and fatty alcohol alkoxylates as nonionic surfactants. International Patent Application WO 96 / 21711 also describes pearling concentrates containing nonionic, zwitterionic and anionic surfactants.

[0004] WO 2003 / 033634 A1 describes fluid, highly concentrated opacifier preparations based on fatty acid glycol esters, amphoteric surfactants and fatty acid partial glycerides.

[0005] Unfortunately, the use of wax dispersions in personal care products can lead to product separation, which is very aesthetically unattractive, at least to consumers.To improve the stability of personal care compositions that contain wax dispersions, EP 2037877 B1 discloses the use of hydrogenated castor oil.However, hydrogenated castor oil needs to be heated in an additional manufacturing step, which is slow and expensive.

[0006] EP 3324927 describes aqueous dispersions of hydrogenated castor oil, which are used together with surfactant mixtures consisting of anionic, amphoteric and nonionic surfactants to stabilize cosmetic compositions such as shampoos or shower gels.The dispersions can be added at room temperature, i.e. no further preparation steps are required.Nevertheless, these hydrogenated castor oil dispersions have high viscosity and are not fluid, therefore requiring long stirring times and high stirring speeds to homogenize.

[0007] WO 2016 / 064847 describes a personal care composition comprising a premix composition containing crystals derived from hydrogenated castor oil. The premix is ​​formed by combining hydrogenated castor oil with a surfactant and water and heating the whole to 65-84°C under high shear. However, according to all examples, the premix composition requires the presence of an anionic surfactant and exhibits high viscosity. Furthermore, the preparation of such dispersions appears to be highly temperature sensitive, as temperatures above 84°C do not produce the desired results. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] EP 0581193 B1 [Patent Document 2] EP 0568848 B1 [Patent Document 3] WO 96 / 21711 [Patent Document 4] WO 2003 / 033634 A1 [Patent Document 5] EP 2037877 B1 [Patent Document 6] EP 3324927 [Patent Document 7] WO 2016 / 064847 Summary of the Invention

[0009] Therefore, there is a need for additional stabilizers for waxes used in the form of wax dispersions in personal care compositions with high active ingredient content (concentrates) and very low viscosity. Furthermore, the stabilizer should improve the stability of the wax in personal care compositions, especially in personal care compositions, especially in personal care compositions that contain a deposition agent, for example in conditioners that contain a cationic polymer. Furthermore, there is a need for stabilizers that can be blended in an easy and cost-effective manner, especially at room temperature (via "cold processing").

[0010] Description of the Invention The present invention relates to monoethylene glycol and / or diethylene glycol. Le 1. A stabilizer concentrate for a wax selected from the group consisting of monoesters and / or diesters, whereby the wax is in the form of a dispersion contained in a personal care composition, the concentrate comprising: (a) hydrogenated castor oil; (b) a non-ionic emulsifier selected from the group consisting of fatty acid polyglycol esters, fatty acid polyglycol ethers, ethoxylated fatty acid glycerol esters; mixed ethers or mixed formals; polysorbates and sugar-based carbohydrates; (c) optionally an amphoteric and / or zwitterionic surfactant; (d) optionally other auxiliary substances or additives (including salts); and (e) water provided that the concentrate does not contain an anionic surfactant, contains hydrogenated castor oil a) in an amount greater than 7.0% by weight and not greater than 20% by weight, the sum of the amounts of (a) to (d) is within the range of 30% by weight to 80% by weight, and water totals 100% by weight; Regarding the concentrate.

[0011] Surprisingly, it has been found that a stabilizer concentrate containing hydrogenated castor oil in a specific amount in combination with a specific nonionic emulsifier produces a concentrate with a high active ingredient content and a very low viscosity when no anionic surfactant is present. Furthermore, the stabilizer concentrate according to the present invention is very stable by itself and provides a very good improvement in the stability of waxes in personal care compositions, especially in personal care compositions containing a deposition agent.

[0012] In particular, waxes used in the form of dispersions as pearlizing and / or opacifying agents in personal care compositions can have their storage stability improved, for example. Thus, the pearlized / opacified white color is maintained and no separation of the personal care product is observed during storage. Surprisingly, the above effect is also observed in personal care compositions containing cationic polymers. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] According to the present invention, a "stabilizer concentrate" or "concentrate" is a composition having a higher content of components (a)-(d) and a lower content of water compared to a typical dispersion. According to the present invention, the total amount of (a)-(d) is in the range of 30%-80% by weight, with water totaling 100% by weight.

[0014] The abbreviation "wt%" means "percent by weight" and is synonymous with "% by weight." According to the present invention, all weight percentages refer to active material weight percentages, unless otherwise specified.

[0015] According to the invention, a "wax" is a compound having a melting point above 25° C., preferably above 50° C. and especially above 80° C. The melting point was determined according to ISO 6321.

[0016] According to the present invention, the term "free of anionic surfactants" means that anionic surfactants are not intentionally added as ingredients for preparing the concentrate, so that in theory the concentrate has 0% by weight of anionic surfactants, and in fact the ingredients of the concentrate may contain by-products, which may be anionic surfactants. However, these potential by-products are not intentionally added, so that the concentrate according to the present invention does not contain anionic surfactants.

[0017] According to the present invention, the term "stabilizing agent" means that the concentrate has a stabilizing effect on the wax in the form of a dispersion contained in the personal care composition. The stabilizing effect of the concentrate was measured in terms of the visual appearance of the personal care composition after storage as storage stability (at least 4 weeks at 40°C). The stabilizing effect means that when the concentrate of the present invention is added, the visual appearance does not change, for example no separation or crystallization is observed.

[0018] concentrate The concentrate according to the invention comprises a) Hydrogenated castor oil (HCO) Includes.

[0019] Castor oil (CAS-No. 8001-79-4) is a vegetable oil that contains glycerides, especially triglycerides, of fatty acids with C10-C22 alkyl or alkenyl moieties containing hydroxyl groups. Hydrogenation of castor oil produces hydrogenated castor oil by converting the double bonds present in the starting oil as ricinoleyl moieties. These moieties are converted to saturated hydroxyalkyl moieties, such as ricinoleyl moieties, e.g. hydroxystearyl.

[0020] The hydrogenated castor oil (HCO) may be processed in any suitable starting form, for example, but not limited to, a form selected from solid, molten and mixtures thereof. Useful hydrogenated castor oil (HCO) may have the following characteristics: more than 80% by weight, in particular 80-90% by weight, of triglycerides of ricinoleic acid. The residue may be free fatty acids, water and other impurities.

[0021] Preferred is hydrogenated castor oil (HCO) having a melting point of about 40° C. to about 100° C., or about 65° C. to about 95° C., and in particular an iodine value range of about 0 to about 5, or about 0 to about 4, and or about 0 to about 2.6. The melting point of hydrogenated castor oil (HCO) can be measured using DSC (Differential Scanning Calorimetry).

[0022] Suitable hydrogenated castor oils (HCO) include commercially available hydrogenated castor oils. Non-limiting examples of commercially available hydrogenated castor oils (HCO) suitable for use include: THIXCIN-R (supplied by Elementis) and Cutina® HR (supplied by BASF Personal Care and Nutrition GmbH), both of which are supplied as powders.

[0023] According to the invention, the concentrate comprises (a) hydrogenated castor oil in an amount of more than 7.0% by weight and up to 20% by weight, preferably in the range of 7.5 to 15% by weight, in particular 8.5 to 12% by weight, based on the concentrate.

[0024] b) Non-ionic emulsifiers

[0025] In accordance with the present invention, the concentrate comprises a non-ionic emulsifier selected from the group consisting of fatty alcohol polyglycol ethers, ethoxylated fatty acid glycerol esters; mixed ethers or formals; polysorbates and sugar-based carbohydrates.

[0026] In the context of the present invention, the terms "nonionic surfactant" or "nonionic emulsifier" are used synonymously and are also understood to mean a mixture of one or more.

[0027] When the non-ionic emulsifiers contain polyglycol ether chains, these may have a conventional homolog distribution, but preferably have a narrow homolog distribution.

[0028] Examples of fatty alcohol polyglycol ethers include alkoxylation products, especially ethoxylation and / or propoxylation products, of fatty alcohols, especially linear fatty alcohols containing 6 to 22 carbon atoms. Preference is given to adducts of linear saturated fatty alcohols having 12 and / or 14 carbon atoms. Particular preference is given to fatty alcohol adducts of 1 to 7 mol ethylene oxide and opt. 2 to 8 mol propylene oxide. Commercially available products such as Arlypon® FT available from BASF Personal Care Nutrition GmbH are suitable.

[0029] Examples for ethoxylated fatty acid glycerol esters are as follows, except that (b) is different from (a): partial esters of glycerol with unsaturated linear or saturated linear or branched fatty acids containing 6 to 22 carbon atoms and / or hydroxycarboxylic acids containing 3 to 18 carbon atoms, and their adducts with 1 to 30 mol of ethylene oxide; - triglycerides, i.e. triesters, of glycerol with unsaturated linear or saturated linear or branched fatty acids containing from 6 to 22 carbon atoms and / or hydroxycarboxylic acids containing from 3 to 18 carbon atoms, and their adducts with 1 to 30 mol of ethylene oxide.

[0030] Typical examples of suitable ethoxylated partial glycerides are adducts of 1 to 30 mol, preferably 5 to 10 mol, of ethylene oxide with glycerol partially esterified with the above fatty acids. Preferred examples are hydroxystearic acid monoglyceride, hydroxystearic acid diglyceride, isostearic acid monoglyceride, isostearic acid diglyceride, oleic acid monoglyceride, oleic acid diglyceride, ricinoleic acid monoglyceride, ricinoleic acid diglyceride, linoleic acid monoglyceride, linoleic acid diglyceride, linolenic acid monoglyceride, linolenic acid diglyceride, erucic acid monoglyceride, erucic acid diglyceride, tartaric acid monoglyceride, tartaric acid diglyceride, citric acid monoglyceride, citric acid diglyceride, malic acid monoglyceride, malic acid diglyceride and technical mixtures thereof, which may still contain small amounts of triglycerides resulting from the manufacturing process.

[0031] Among the ethoxylated fatty acid glycerol esters, partial esters of ethoxylated glycerol with a mixture of fatty acids derived from coconut are preferred, in particular mixtures of partial esters of ethoxylated glycerol with a mixture of fatty acids derived from coconut, the monoester content being more than 40% by weight in the mixture of mono-, di- and triesters. The commercial product Cetiol® HE available from BASF Personal Care Nutrition GmbH is suitable.

[0032] Typical examples of ethoxylated triglycerides are addition products of 1 to 15 or 15 to 60 moles of ethylene oxide with castor oil and / or hydrogenated castor oil. The commercial product Eumulgin® HRE 40 available from BASF Personal Care Nutrition GmbH is suitable.

[0033] Typical examples of polysorbates are sorbitan monoisostearate, sorbitan sesquiisostearate, sorbitan diisostearate, sorbitan triisostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan dioleate, sorbitan trioleate, sorbitan monoerucate, sorbitan sesquierucate, sorbitan dierucate, sorbitan trierucate, sorbitan monoricinoleate, sorbitan sesquierucate, sorbitan diricinoleate, sorbitan triricinoleate, sorbitan Monohydroxystearate, sorbitan sesquihydroxystearate, sorbitan dihydroxystearate, sorbitan trihydroxystearate, sorbitan monotartrate, sorbitan sesquitartrate, sorbitan ditartrate, sorbitan tritartrate, sorbitan monocitrate, sorbitan sesquicitrate, sorbitan dicitrate, sorbitan tricitrate, sorbitan monomaleate, sorbitan sesquimaleate, sorbitan dimaleate, sorbitan trimaleate and technical mixtures thereof. Also suitable are addition products of 1 to 30 mol, preferably 5 to 10 mol, of ethylene oxide with the abovementioned sorbitan esters.

[0034] Examples of mixed ethers or formals include triblock copolymers containing three blocks of mono- or polymeric ethylene oxide and polymeric propylene oxide, such as Pluracare® L44 (Poloxamer 124), Pluracare® F 127 (Poloxamer 407).

[0035] Examples of sugar-based carbohydrates include alk(en)yl polyglycosides or glucuronic acid derivatives, fatty acid N-alkyl glucamides.

[0036] Examples of glucuronic acid derivatives and fatty acid N-alkyl glucamides include N-alkyl glucamides derived from lauric acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid and technical mixtures thereof. In particular, the use of N-methyl glucamides is preferred, especially C 12 -C 14 - those based on the technical fraction of coconut fatty acids are preferred. Suitable products are Glucopure® Foam or Glucopure® Sense available from Clariant.

[0037] Examples of sugar-based carbohydrates include alkyl polyglycosides.

[0038] The alkyl polyglycosides are in particular those of formula (I): RO-[G] p (I) (In the formula, R is an alkyl group having 6 to 22 carbon atoms, - G is a sugar group having 5 or 6 carbon atoms, - p is a number from 1 to 10) It is a known nonionic surfactant having the formula:

[0039] They can be obtained by relevant methods of preparative organic chemistry. The alkyl polyglycosides can be derived from aldoses or ketoses having 5 or 6 carbon atoms, preferably from glucose. The preferred alkyl polyglycosides are therefore alkyl polyglucosides. The index p in the general formula (I) specifies the degree of polymerization (DP), i.e. the distribution of monoglycosides and polyglycosides, and is a number between 1 and 10. p in a given compound must always be an integer, and here we may assume in particular values ​​p=1 to 6, although the value p for a particular alkyl polyglycoside is a calculated parameter that is analytically determined and is most often a fraction. Preferably, alkyl polyglycosides are used that have an average degree of polymerization p between 1.1 and 3.0. From the point of view of technical application, preference is given to alkyl polyglycosides whose degree of polymerization is less than 1.7, in particular between 1.2 and 1.7.

[0040] The alkyl group R can be derived from primary alcohols having 6 to 22, preferably 6 to 18, carbon atoms. Typical examples are caproic alcohol, caprylic alcohol, capric alcohol, decyl alcohol and undecyl alcohol, and also mixtures of the technical grades thereof, as obtained, for example, in the hydrogenation of technical grade fatty acid methyl esters or during the hydrogenation of aldehydes derived from the Laurent oxo synthesis. The alkyl group R 7 can also be derived from lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol, brassidyl alcohol, and also mixtures of technical grades thereof.

[0041] In the context of the present invention, preference is given in particular to mixtures of different alkyl polyglycosides of formula (I) in which R is derived from a mixture of primary alcohols. According to one preferred embodiment, R is derived from a mixture of primary alcohols containing 10-50% by weight of 8-10 carbon atoms and 50-90% by weight of 12-16 carbon atoms.

[0042] According to another preferred embodiment, R is derived from a mixture of primary alcohols containing 75 to 95% by weight of primary higher alcohols having 10 to 22 carbon atoms, and in particular from a mixture of fatty acids obtained from coconut, preferably having 12 to 16 carbon atoms.

[0043] Suitable products are Plantacare® 2000 and Plantacare® 818, both available from BASF Personal Care Nutrition GmbH.

[0044] The concentrate preferably comprises as non-ionic emulsifier (b) a sugar-based carbohydrate, more preferably an alk(en)yl polyglycoside, a glucuronic acid derivative and a fatty acid N-alkylglycamide, in particular an alk(en)yl polyglycoside.

[0045] Preferably, the concentrate comprises the nonionic emulsifier (b) in an amount ranging from 10 to 60% by weight, preferably from 20 to 40% by weight, particularly preferably from 25 to 35% by weight, based on the concentrate.

[0046] The concentrate preferably has a quantitative ratio of nonionic emulsifier b):hydrogenated castor oil a) in the range of 2:1 to 4:1, in particular about 3:1.

[0047] c) Amphoteric and / or zwitterionic surfactants The concentrates according to the invention may contain amphoteric and / or zwitterionic surfactants, in particular amphoacetates and / or betaines.

[0048] Betaines are known surfactants that are primarily produced by carboxyalkylation, preferably carboxymethylation, of amine-based compounds. The starting material is preferably condensed with a halocarboxylic acid or its salt, more specifically with sodium chloroacetate. Examples of suitable betaines are represented by the formula (II):

[0049] [ka] and R 1 represents an alkyl and / or alkenyl group containing 6 to 22 carbon atoms, R 2 represents hydrogen or an alkyl group containing 1 to 4 carbon atoms; R 3 represents an alkyl group containing 1 to 4 carbon atoms, n is a number from 1 to 6, and X is an alkali metal and / or alkaline earth metal or ammonium. Typical examples are hexylmethylamine, hexyldimethylamine, octyldimethylamine, decyldimethylamine, dodecylmethylamine, dodecyldimethylamine, dodecylethylmethylamine, C 12 / 14 Cocoalkyl dimethylamine, myristyl dimethylamine, cetyl dimethylamine, stearyl dimethylamine, stearyl ethyl methylamine, oleyl dimethylamine, C 16 / 18 Carboxymethylation products of tallow alkyldimethylamines and their technical mixtures.

[0050] Other suitable betaines have the formula (III):

[0051] [ka] where R 6 CO is a fatty acyl group containing 6 to 22 carbon atoms and 0 or 1 to 3 double bonds, m is a number from 1 to 3, and R 4 is hydrogen or C 1-4 represents an alkyl group, R5 is C 1-4 where n is a number between 1 and 6, and X is an alkali metal and / or alkaline earth metal or ammonium. Typical examples are the reaction products of fatty acids containing 6 to 22 carbon atoms, namely caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, eleostearic acid, arachic acid, gadoleic acid, behenic acid and erucic acid, and technical mixtures thereof, with N,N-dimethylaminoethylamine, N,N-dimethylaminopropylamine, N,N-diethylaminoethylamine and N,N-diethylaminopropylamine, condensed with sodium chloroacetate. C, known under the CTFA name of cocamidopropyl betaine, 8 / 18 It is preferred to use the condensation products of coco fatty acid-N,N-dimethylaminopropylamide with sodium chloroacetate. Particularly preferred are betaines that are distinguished by their high purity; in other words, low-salt betaines are used that have a maximum salt content of 13% by weight, preferably 11% by weight and more particularly 7% by weight, based on the active substance. The corresponding salt is determined by the formation of amphoteric surfactants; in the most common example, this is sodium chloride. In a particularly preferred embodiment, these betaines also have a low content of free fatty acids, up to 4% by weight, preferably up to 3% by weight, based on the active substance.

[0052] Furthermore, imidazolinium betaines are also included. These substances are also known substances which can be obtained, for example, by cyclocondensation of 1 or 2 moles of fatty acids with polyfunctional amines, such as, for example, aminoethylethanolamine (AEEA) or diethylenetriamine. The corresponding carboxyalkylation products are mixtures of various open-chain betaines. Typical examples are the condensation products of the abovementioned fatty acids with AEEA, preferably with lauric acid or again with C 12 / 14 -An imidazoline based on coconut fatty acid, which is subsequently betained with sodium chloroacetate.

[0053] Suitable cocamidopropyl betaines are commercially available, such as Dehyton® PK 45 (supplied by BASF Personal Care and Nutrition GmbH).

[0054] If the concentrate comprises surfactants (c), they are preferably selected from the group comprising amphoteric and / or zwitterionic surfactants, in particular betaines and / or amphoacetates.

[0055] The concentrate may contain said surfactant c) in an amount ranging from 0 to 30% by weight, based on the concentrate.

[0056] When the concentrate comprises a surfactant (c), the quantitative ratio of the nonionic emulsifier (b) to the amphoteric and / or zwitterionic surfactant (c) is preferably in the range of 10:1 to 20:1.

[0057] Optionally included auxiliaries or additives (including salts) d) According to the invention, the concentrate may also contain d) other auxiliaries or additives (including salts).

[0058] Depending on the preparation of the betaine surfactant (c), salts may be included as by-products; in the most common example, the salt is sodium chloride. Additionally, low contents of free fatty acids may also be possible by-products.

[0059] Examples of other auxiliaries are thickeners, complexing agents, non-aqueous solvents, preservatives and / or pH adjusters. It is preferred not to add auxiliaries, although their addition is still possible.

[0060] Preferred concentrates contain other auxiliaries or additives (including salts) (d) in the range of 0.1-15% by weight based on the concentrate material.

[0061] According to one preferred embodiment of the invention, the concentrate comprises: (a) more than 7% but not more than 20% by weight of hydrogenated castor oil; (b) 10.0 to 60.0 weight percent of a nonionic emulsifier; (d) 0.1 to 15% by weight of other auxiliaries or additives (including salts), and (e) Water, in an amount totalling 100% by weight It consists of:

[0062] According to another preferred embodiment of the present invention, the concentrate comprises (a) 7.5 to 15.0% by weight of hydrogenated castor oil; (b) 20.0 to 50.0% by weight of a nonionic emulsifier; (d) 0.1 to 15% by weight of other auxiliaries or additives (including salts), and (e) Water, in an amount totalling 100% by weight It consists of:

[0063] Both embodiments are at least the preferred concentrates covered by claim 1, i.e. with the proviso that the concentrate does not contain anionic surfactants and that the sum of the amounts of (a)-(d) is in the range of 30%-80% by weight, with water adding up to 100% by weight. Particularly preferred are concentrates in which the sum of the amounts of (a)-(d) is in the range of 40%-80% by weight, with water adding up to 100% by weight.

[0064] According to the invention, the concentrate is flowable and preferably has a viscosity in the range of 2,500 to 8,000 mPas, in particular 3,000 to 7,000 mPas, more preferably 3,000 to 5,500 mPas (Brookfield, RVT; spindle 4; 10 rpm; 20° C.).

[0065] According to a further subject matter of the invention, the concentrate is prepared by mixing together components (a), (b) and optionally (c) and / or optionally (d), adding the required amount of water, heating the mixture to about 85°C to 90°C, and then cooling with stirring. Preferably, the mixture is heated to about 88°C to 93°C.

[0066] The reaction mixture is preferably cooled while being agitated, for example with stirring, in particular for at least 5 to 150 minutes, preferably at 50 to 150 rpm. In the sense of the present invention, it is desirable to avoid crystallization or recrystallization of the hydrogenated castor oil (a) during the process. For cooling, a cooling rate of 15 to 30° C. per hour during the process is preferred.

[0067] Wax Dispersion According to the present invention, a stabilizer concentrate is used for waxes selected from the group consisting of monoesters and / or diesters of monoethylene glycol and / or diethylene glycol, whereby said waxes are in the form of a dispersion included in the personal care composition.

[0068] According to the present invention, the term "mono- and / or diesters of monoethylene glycol and / or diethylene glycol" means monoesters of monoethylene glycol, monoesters of diethylene glycol and diesters of diethylene glycol, as well as mixtures thereof.

[0069] The following formula describes a suitable ester of ethylene glycol: R 8 CO(OA) q OR 7 (IV) In the formula, R 8 CO is a linear or branched, saturated or unsaturated acyl group containing 6 to 22 carbon atoms; R 7 is hydrogen or R 8It has the same meaning as CO, A is a linear alkylene radical containing 2 carbon atoms and q is the number 2, provided that they are waxes at room temperature. Typical examples are the monoesters of monoethylene glycol and the mono- and / or diethylene glycol (q=2) with fatty acids containing 16 to 22, preferably 16 to 18, carbon atoms, such as palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, eleostearic acid, arachic acid, gadoleic acid, behenic acid and erucic acid, and technical mixtures thereof.

[0070] Preferred are the mono- and / or diesters of diethylene glycol, especially with fatty acids having from 6 to 22 carbon atoms.

[0071] According to one embodiment of the invention, the wax comprises mono- and / or diesters of diethylene glycol with a fatty acid mixture comprising 85-100% by weight of stearic acid and 0-15% by weight of different further fatty acids having 12-22 carbon atoms, relative to the total amount of fatty acids. Said fatty acid mixture preferably comprises 90-98% by weight of stearic acid and 2-10% by weight of other saturated fatty acids having 16-22 carbon atoms, relative to the total amount of fatty acids, in particular said fatty acid mixture consists of 90-96% by weight of stearic acid and 4-10% by weight of other saturated fatty acids having 16-22 carbon atoms. The other saturated fatty acids having 16-22 carbon atoms are palmitic acid, arachidic acid and behenic acid.

[0072] Preferably, the wax comprises a diethylene glycol fatty acid ester, in particular a diethylene glycol difatty acid ester, which for technical reasons comprises 90 to 100% by weight of a diethylene glycol difatty acid ester and 0 to 10% by weight of a diethylene glycol monofatty acid ester.

[0073] In a very particularly preferred embodiment, the concentrate according to the invention stabilizes a wax dispersion, in which the wax comprises, based on the weight % of the wax, 90 to 100% by weight of diethylene glycol di-fatty acid esters and 0 to 10% by weight of diethylene glycol mono-fatty acid esters, particularly preferably, based on the weight % of the fatty acid mixture, 90 to 98% by weight of esters of a fatty acid mixture comprising stearic acid and 2 to 10% by weight of other saturated fatty acids having 16 to 22 carbon atoms.

[0074] In a preferred embodiment, the wax in the dispersion has an average particle size d50 in the range of 0.8-3.5 μm, in particular in the range of 1.0-3.0 μm, with the particle size distribution preferably showing more than 50% below 3 μm and 90% of all particles below 7 μm. In particular, the wax particles have a predominantly spherical particle shape, in particular 70% of all particles having a three-dimensional structure characterized in particular by a height:width:length ratio of 1:1:1. Such particle shape and particle amount can be determined by laser diffraction using a Mastersizer® 2000 device and the corresponding production description of MALVERN INSTRUMENTS GmbH, Marie-Curie-Strasse 4 / 1, 71083 Herrenberg, Germany.

[0075] Preferably, the wax dispersion contains the wax in an amount of 15 to 35% by weight based on the wax dispersion.

[0076] In a further embodiment, the wax dispersion comprises an additional surfactant and optional auxiliaries or additives. The additional surfactant may be a non-ionic surfactant, an anionic surfactant and / or a betaine.

[0077] Suitable nonionic surfactants may be the same or different from those described as nonionic emulsifier b).Typical examples of nonionic surfactants include fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, fatty acid polyglycol esters, fatty acid amide polyglycol ethers, fatty amine polyglycol ethers, alkoxylated triglycerides, fatty acid partial glycerides, mixed ethers and mixed formals, alk(en)yl oligoglycosides, partially oxidized alk(en)yl oligoglycosides and glucuronic acid derivatives, fatty acid N-alkyl glucamides, polyol fatty acid esters, sugar esters, sorbitan esters, polysorbates and amine oxides.When nonionic surfactants contain polyglycol ether chains, they may have conventional homolog distributions, but preferably have narrow homolog distributions.

[0078] Preferred nonionic surfactants in wax dispersions are alk(en)yl oligoglycosides and / or fatty acid partial glycerides. In this context, fatty acid partial glycerides means monoglycerides, diglycerides and technical mixtures thereof, which may still contain small amounts of glycerol and triglycerides resulting from the manufacturing process. Preferred fatty acid partial glycerides are technical mixtures of fatty acid partial glycerides with a monoglyceride content in the range of 50-95% by weight, preferably 60-90% by weight, hereinafter also referred to as glycerol mono fatty acid esters. Preferred fatty acid partial glycerides are selected from the group formed by glycerol mono-fatty acid esters with lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, eleostearic acid, arachnic acid, gadoleic acid, behenic acid and erucic acid and technical mixtures thereof. Particularly preferred are mono-fatty acid esters of (technical) glycerol with fatty acids having 12 to 18 C atoms, preferably fatty acid mixtures comprising 90 to 100% by weight of oleic acid relative to the fatty acid mixture.

[0079] A suitable commercially available industrial product is, for example, Monomuls® 90-O 18, a retail product from BASF Personal Care & Nutrition GmbH.

[0080] The fatty acid partial glyceride is preferably contained in an amount of 0.5 to 3.0% by weight, and more preferably 1.0 to 2% by weight, based on the wax dispersion.

[0081] The wax dispersion may further contain alk(en)yl oligoglycosides as non-ionic surfactants, especially in combination with fatty acid partial glycerides. Suitable alk(en)yl oligoglycosides have already been described above as non-ionic emulsifiers b). The product Plantacare® 818 available from BASF Personal Care & Nutrition GmbH is preferred.

[0082] The wax dispersion may further comprise an anionic surfactant selected from the group consisting of fatty alcohol (ether) sulfates.

[0083] In particular, the general formula (V): R'O(CH2CH2O) 0-10 SO3Y (V) where R' is a linear or branched alkyl and / or alkenyl group having 6 to 22 carbon atoms, and Y is an alkali metal and / or alkaline earth metal, ammonium, alkylammonium, alkanolammonium or glucanmonium. If the above numbers are zero (=0), this is a fatty alcohol sulfate. Fatty alcohol ether sulfates (numbers 1 to 10) are preferred. Typical examples are investment product sulfates of caproic alcohol, capryl alcohol, 2-ethylhexyl alcohol, capri alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palm oleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and brassylic alcohol and technical mixtures thereof in the form of their sodium and / or magnesium salts, with an average of 1 to 10 mol, in particular 2 to 5 mol, of ethylene oxide. Fatty alcohol (ether) sulfates can have both conventional and narrowed homolog distributions. Technical C lauryl ether sulfates, preferably in the form of their sodium and / or magnesium salts, with an average of 1 to 6 mol, preferably 1 to 3 mol, of ethylene oxide, are preferred. 12 / 14 , or C 12 / 18 It is particularly preferable to use fatty alcohol ether sulfates which are based on adducts with coconut fatty alcohol fractions.

[0084] A suitable commercially available industrial product is, for example, Texapon® N70, a retail product from BASF Personal Care & Nutrition GmbH.

[0085] A preferred wax dispersion comprises an anionic surfactant, especially lauryl ether sulfate with an average degree of ethoxylation of 1 or 2, preferably in an amount of 8 to 15% by weight, preferably 9 to 12% by weight, based on the wax dispersion.

[0086] Furthermore, the wax dispersion may contain the betaine surfactants already described as component c) of the concentrates according to the invention, preferably according to formula (I) and / or (II), in particular according to formula (II), of this group the C 10 betaine surfactants known under the CTFA name Cocamidopropyl Betaine. 8 / 18 It is preferred to use the condensation product of coconut fatty acid-N,N-dimethylaminopropylamide with sodium chloroacetate.

[0087] Preferred wax dispersions contain a betaine surfactant, especially cocamidopropyl betaine, preferably in an amount of 0 to 5% by weight, preferably 0.5 to 2.5% by weight, based on the wax dispersion.

[0088] It may be possible for the dispersion to comprise further auxiliaries or additives (including salts), e.g. as listed as component d) in the concentrates, in an amount of 0 to 20% by weight, preferably 0 to 10% by weight.

[0089] Finally, the wax dispersion may contain up to 100% water by weight.

[0090] According to one embodiment of the present invention, the concentrate stabilizes waxes in personal care compositions whereby the waxes are used in the form of a wax dispersion, the wax dispersion comprising, in weight percent based on the wax dispersion, 20-35% by weight, preferably 25-30% by weight, of a wax selected from the group consisting of monoesters and / or diesters of monoethylene glycol and / or diethylene glycol, and 0.5 to 3.0% by weight, preferably 1.0 to 2% by weight, of a nonionic surfactant, and 8.0 to 15.0% by weight, preferably 9.0 to 12.0% by weight, of an anionic surfactant, and 0 to 5.0% by weight, preferably 0.5 to 2.5% by weight, of a betaine surfactant, and 0-10% by weight of auxiliaries or additives (including salts), and Up to 100% water by weight It is preferred that the compound contains

[0091] In particular: waxes selected from diesters of diethylene glycol fatty acid esters, with a diethylene glycol difatty acid content of 90-100% by weight and a content of stearic acid of 90-98% by weight and other saturated fatty acids with 16-22 carbon atoms of 2-10% by weight in the fatty acid mixture, and 0.5 to 3.0% by weight, preferably 1.0 to 2% by weight, of a fatty acid partial glyceride, and 8.0 to 15.0% by weight, preferably 9.0 to 12.0% by weight, of lauryl ether sulfate having an average degree of ethoxylation of 1 or 2, and 0 to 5.0% by weight, preferably 0.5 to 2.5% by weight, of cocamidopropyl betaine, and 0-10% by weight of auxiliaries or additives (including salts), and Up to 100% water by weight It consists of:

[0092] According to a second embodiment of the invention, the wax dispersion is free of anionic surfactants, in particular free of anionic surfactants, selected from the group consisting of sulfates and / or ether sulfates. In this embodiment of the invention, the wax dispersion is free of anionic surfactants, in % by weight based on the wax dispersion. 15 to 25% by weight of a wax selected from the group consisting of monoesters and / or diesters of monoethylene glycol and / or diethylene glycol, and 0.5 to 5.0% by weight, preferably 1.0 to 3% by weight, of a fatty acid partial glyceride, and 10 to 20% by weight of a non-ionic surfactant selected from the group of alk(en)yl oligoglycosides, and 0-10% by weight of auxiliaries or additives (including salts), and Up to 100% water by weight Includes.

[0093] In particular: waxes selected from diesters of diethylene glycol fatty acid esters with a diethylene glycol difatty acid content of 90-100% by weight and a content of stearic acid of 90-98% by weight and other saturated fatty acids with 16-22 carbon atoms of 2-10% by weight in the fatty acid mixture; 0.5 to 5.0% by weight, preferably 1.0 to 3% by weight, of a fatty acid partial glyceride, and 10 to 20.0% by weight of a nonionic surfactant, in particular an alk(en)yl oligoglycoside, and 0-10% by weight of auxiliaries or additives (including salts), and Up to 100% water by weight It consists of:

[0094] According to the present invention, the concentrate stabilizes the wax in the personal care composition, whereby the wax is very well in the form of the wax dispersion described above, and in particular personal care compositions further comprising a cationic polymer show good results, since the deposition agent does not promote the separation of the wax.

[0095] A further subject of the present invention is therefore the use of the claimed concentrate as a stabilizer for waxes selected from the group consisting of mono- and / or diesters of monoethylene glycol and / or diethylene glycol, whereby the waxes are in the form of a dispersion contained in a personal care composition.

[0096] The claimed concentrates are preferably used as stabilizers for waxes in the form of wax dispersions used as pearlizing and / or opacifying agents in personal care compositions, preferably personal care compositions comprising a cationic polymer.

[0097] And a further subject of the invention is the use of the claimed concentrate, which is prepared by mixing together components (a), (b) and optionally (c) and / or optionally (d), adding the required amount of water, heating the mixture to about 85-95°C and then cooling with stirring.

[0098] The concentrates are preferably used in the range of 0.1 to 5% by weight, preferably 0.5 to 1.5% by weight, calculated as active material, of the personal care composition.

[0099] The use of the concentrate results in a significantly higher storage stability: after several weeks no optical changes of the personal composition can be observed, i.e. no streaks, crystals or wax separation occurs.

[0100] Personal Care Compositions Personal care compositions are understood here as all compositions known to those skilled in the art that are intended exclusively or primarily for external application to the human body or hair to cleanse, care for, protect, keep in good condition, impart fragrance, change or affect the appearance.Preferably, the concentrates are used in liquid personal care compositions, in particular surface-active personal care compositions, such as foam baths, shower gels, shower baths, shower milks, shower creams, shampoos, hair masks, hair milks and hair conditioners.

[0101] Another subject of the invention is A) 0.1% to 5% by weight, in particular 0.25% to 3% by weight, of a concentrate according to at least one of claims 1 to 13, and B) a wax dispersion comprising a wax selected from the group consisting of mono- and / or diesters of monoethylene glycol and / or diethylene glycol, as already described; C) one or more detersive surfactants selected from the group consisting of anionic surfactants, nonionic surfactants, amphoteric surfactants and / or zwitterionic surfactants; D) optionally a cationic polymer, and E) optionally, other ingredient(s) different from C) and / or D); Personal care, including:

[0102] Preferably, the personal care composition comprises, based on weight percent of the personal care composition: A) 0.1% to 5.0% by weight, in particular 0.25% to 3% by weight, of a concentrate according to at least one of claims 1 to 13, B) a wax dispersion comprising from 0.1% to 5% by weight, in particular from 0.5% to 2.5% by weight, of a wax selected from the group consisting of the monoesters and / or diesters of monoethylene glycol and / or diethylene glycol, as already described, C) 1.0 to 30% by weight, in particular 5.0 to 25.0% by weight, of one or more cleaning surfactants selected from the group selected from anionic surfactants, nonionic surfactants, amphoteric surfactants and / or zwitterionic surfactants, D) 0 to 5% by weight, in particular 0.01 to 1% by weight, of a cationic polymer, E) up to 100% by weight of other components different from C) and / or D). Includes.

[0103] C) Anionic, nonionic, amphoteric and / or zwitterionic surfactants Examples of anionic surfactants are soaps, alkylbenzenesulfonates, alkane sulfonates, olefinsulfonates, alkyl ether sulfonates, glycerol ether sulfonates, α-methyl ester sulfonates, sulfofatty acids, alkyl sulfates, fatty alcohol ether sulfates, glycerol ether sulfates, fatty acid ether sulfates, hydroxy mixed ether sulfates, monoglyceride (ether) sulfates, fatty acid amide (ether) sulfates, mono- and dialkyl sulfosuccinates, mono- and dialkyl sulfosuccinamates, sulfotriglycerides, amide soaps, ether carboxylic acids and their salts, fatty acid isethionates, fatty acid sarcosinates, fatty acid taurides, N-acylamino acids such as acyl lactylates, acyl tartrates, acyl glutamates and acyl aspartates, alkyl oligoglucoside sulfates, protein fatty acid condensates (especially wheat-based plant products) and alkyl (ether) phosphates. When the anionic surfactant comprises a polyglycol ether chain, the polyglycol ether chain preferably has a narrow homolog distribution, but may also have a conventional homolog distribution. Particularly preferred anionic surfactants in the preparation according to the invention are the alkyl ether sulfates already disclosed in formula (V).

[0104] Alkyl ether sulfates ("ether sulfates") are known anionic surfactants that are produced on an industrial scale by SO3 or chlorosulfonic acid (CSA) sulfation of fatty alcohol or oxoalcohol polyglycol ethers, followed by neutralization. Ether sulfates can have both conventional and narrow homolog distributions. Technical Cs in the form of sodium and / or magnesium salts are widely used. 12 / 14 Or C 12 / 18 It is particularly preferable to use ether sulfates based on an adduct of coconut fatty alcohol fractions with an average of 1 to 6 mol and preferably 1 to 3 mol of ethylene oxide.

[0105] Further anionic surfactants useful within the context of the present invention are the α-sulfofatty acid di-salts according to formula (VI) defined above. R 9 CH(SO3M1)COOM2 (VI) In the formula, the group R 9 is a linear or branched alkyl or alkenyl group having 6 to 18 carbon atoms, and the groups M1 and M2 are independently selected from the group comprising H, Li, Na, K, Ca / 2, Mg / 2, ammonium and alkanolamines. Particularly preferred alkanolamines in this context are monoethanolamine, diethanolamine, triethanolamine and monoisopropanolamine.

[0106] In a preferred embodiment, the group R in formula (VI) 9 is a saturated linear alkyl group having 10 to 16 carbon atoms. The groups M1 and M2 in formula (VI) are preferably selected from the group comprising H (hydrogen) and Na (sodium).

[0107] The compounds can be prepared by any method known to those skilled in the art. A particularly preferred preparation method here is the sulfation of the corresponding carboxylic acid. Here, the corresponding carboxylic acid, in particular the corresponding fatty acid, is reacted with gaseous sulfur trioxide, which is preferably used in an amount such that the molar ratio of SO3 to fatty acid is in the range of 1.0:1 to 1.1:1. The crude product thus obtained, which is the acidic sulfation product, is then partially or completely neutralized, with complete neutralization being preferred with an aqueous NaOH solution. If desired, it is also possible to carry out a purification step and / or bleaching (to adjust the desired light color of the product).

[0108] A preferred alpha-sulfo fatty acid di-salt is a technical grade mixture of alpha-sulfo fatty acid di-salts, available commercially as Texapon SFA® from BASF Personal Care Nutrition GmbH.

[0109] Furthermore, in addition to or instead of the anionic surfactants, amphoteric and / or zwitterionic surfactants may be used. Suitable surfactants have already been described as component c) of the concentrates of the invention, preferably betaine surfactants according to formula (II) and / or (III) are useful, in particular the C-type surfactants known under the CTFA name Cocamidopropyl Betaine. 8 / 18 The condensation product of coconut fatty acid-N,N-dimethylaminopropylamide with sodium chloroacetate is preferred.

[0110] Furthermore, in addition to or instead of the anionic, amphoteric or zwitterionic surfactants, non-ionic surfactants may be used.Suitable non-ionic surfactants have already been described as component b) of the concentrates of the invention, and are preferably non-ionic surfactants selected from the group consisting of fatty alcohol polyglycol ethers, ethoxylated fatty acid glycerol esters, mixed ethers or mixed formals, polysorbates and sugar-based carbohydrates.

[0111] As non-ionic surfactants, alk(en)yl polyglucosides, in particular as described according to formula (I), are preferred, in particular the already disclosed products Plantacare® 2000 and Plantacare® 818 available from BASF Personal Care Nutrition GmbH.

[0112] It is preferred to use anionic surfactants, amphoteric and / or zwitterionic surfactants and / or nonionic surfactants in amounts of 1.0 to 30% by weight, especially 5.0 to 25.0% by weight, of the personal care compositions, calculated as active substances.

[0113] D) Cationic polymers Cationic polymers are known deposition agents, i.e., when used in personal care compositions, they deposit on skin and / or hair, giving them a pleasant and soft feel.However, personal care compositions that contain cationic polymers, such as cationic guar polymers, have problems with their stability when wax dispersions are present, probably because the wax tends to settle more easily as a result of the deposition properties of cationic polymers.This problem can be overcome by adding the concentrate according to the present invention to stabilize wax in personal care compositions.

[0114] Preferred personal care compositions also include cationic polymers, which may include at least one of cationic guar polymers, cationic non-guar galactomannan polymers, cationic tapioca polymers, cationic copolymers of acrylamide monomers and cationic monomers, and / or synthetic non-crosslinked cationic polymers. Suitable cationic polymers are, for example, cationic cellulose derivatives, such as quaternized hydroxyethylcellulose available from Amerchol under the name Polymer JR 400®, cationic starch, copolymers of diallyl ammonium salts and acrylamide, quaternized vinylpyrrolidone / vinylimidazole polymers, such as, for example, Luviquat® (BASF), condensation products of polyglycols with amines, quaternized collagen polypeptides, such as, for example, lauryldimonium hydroxypropyl hydrolyzed collagen (Lamequat® L, Grünau), quaternized wheat polypeptides, polyethyleneimine, cationic silicone polymers, such as, for example, amodimethicone, copolymers of adipic acid and dimethylaminohydroxypropyldiethylenetriamine (Cartaretine®, Sandoz), copolymers of acrylic acid and dimethyldiallyl ammonium chloride (Merquat®), 550, Chemviron), polyaminopolyamides and their crosslinked water-soluble polymers, cationic chitin derivatives such as quaternized chitosan, optionally in microcrystalline distribution, condensation products of dihaloalkyls, such as dibromobutane, with bis-dialkylamines, such as bis-dimethylamino-1,3-propane, cationic guar gums, such as Jaguar® CBS, Jaguar® C-17, Jaguar® C-16 from Celanese, quaternized ammonium salt polymers, such as Mirapol® A-15, Mirapol® AD-1, Mirapol® AZ-1 from Miranol.

[0115] In particular, the personal care composition may comprise a cationic polymer selected from the group consisting of cationically modified cellulose derivatives, PQ10, PQ67, cationically modified guar derivatives such as Dehyquart® Guar N, guar hydroxypropyltrimonium chloride, acrylamide-based cationic homopolymers or copolymers, vinylpyrrolidone-based cationic homopolymers or copolymers, quaternized vinylimidazole-based cationic homopolymers or copolymers, and methacrylate-based cationic homopolymers or copolymers.

[0116] In particular there are cationically modified guar derivatives, preferably guar hydroxypropyltrimonium chloride.

[0117] Based on the personal care composition, the cationic polymer is preferably used in an amount of 0 to 5% by weight, in particular 0.01 to 1.0% by weight.

[0118] E) Other ingredients Depending on the end user application, cosmetic formulations may contain a range of further auxiliaries and additives such as, for example, water, bodying agents, viscosity reducers, thickeners, salts, superfatting agents, stabilizers, polymers, fats, waxes, silicones, lecithins, protein hydrolysates, phospholipids, bioactive ingredients, UV sunscreen factors, antioxidants, deodorants, antiperspirants, antidandruff agents, film formers, swelling agents, insect repellents, self-tanning agents, tyrosinase inhibitors (bleaching agents), hydrotropes, solubilizers, preservatives, perfume oils, pigments, etc. (including water).

[0119] To reduce the viscosity, the personal care composition may further comprise a polyol as an optional ingredient. Suitable polyols preferably contain 2 to 15 carbon atoms and at least two hydroxyl groups. The polyol may contain other functional groups, more particularly amino groups, or may be modified with nitrogen. Typical examples are the following: Glycerol; Alkylene glycols, such as ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, hexylene glycol and polyethylene glycol having an average molecular weight of 100 to 1,000 daltons; technical oligoglycerol mixtures having a degree of self-condensation of 1.5 to 10, such as, for example, technical diglycerol mixtures having a diglycerol content of 40 to 50% by weight; Methylol compounds, in particular trimethylolethane, trimethylolpropane, trimethylolbutane, pentaerythritol and dipentaerythritol; Lower alkyl glucosides, in particular those containing 1 to 8 carbon atoms in the alkyl group, such as methyl glucoside and butyl glucoside; sugar alcohols containing 5 to 12 carbon atoms, such as sorbitol or mannitol; sugars containing 5 to 12 carbon atoms, such as glucose or sucrose; Amino sugars, e.g. glucamine; Dialcoholamines, such as diethanolamine or 2-aminopropane-1,3-diol.

[0120] The polyol is typically used in an amount of 0.1 to 10%, preferably 0.5 to 5%, more particularly 0.7 to 3% by weight of the personal care composition. When a large amount of polyol, preferably glycerol or ethylene glycol, is used, the concentrate is simultaneously stabilized against microbial attack.

[0121] Suitable oily components are, for example, Guerbet alcohols, which are based on fatty alcohols containing 6 to 18, preferably 8 to 10, carbon atoms; linear C 6-22 Fatty acids and linear C 6-22 Esters with fatty alcohols, branched chain C 6-13 Carboxylic acids and linear C 6-22 Esters with fatty alcohols, for example myristyl myristate, myristyl palmitate, myristyl stearate, myristyl isostearate, myristyl oleate, myristyl behenate, myristyl erucate, cetyl myristate, cetyl palmitate, cetyl stearate, cetyl isostearate, cetyl oleate, cetyl behenate, cetyl erucate, stearyl myristate, stearyl palmitate, stearyl stearate, stearyl isostearate, stearyl oleate, stearyl behenate, stearyl erucate, isostearyl myristate, isostearyl palmitate, isostearyl stearyl ester, isostearyl isostearate, isostearyl oleate, isostearyl behenate, isostearyl oleate, oleyl myristate, oleyl palmitate, oleyl stearate, oleyl isostearate, oleyl oleate, oleyl behenate, oleyl erucate, behenyl myristate, behenyl palmitate, behenyl stearate, behenyl isostearate, behenyl oleate, behenyl behenate, behenyl erucate, erucyl myristate, erucyl palmitate, erucyl stearate, erucyl isostearate, erucyl oleate, erucyl behenate, and erucyl erucate.6-22 Esters of fatty acids with branched alcohols, more particularly 2-ethylhexanol, hydroxycarboxylic acids with linear or branched C 6-22 Esters with fatty alcohols, more particularly dioctyl maleate, esters of linear and / or branched fatty acids with polyhydric alcohols (e.g. propylene glycol, dimer diol or trimer triol) and / or Guerbet alcohols, C 6-10 Triglycerides based on fatty acids, C 6-18 Fatty acid based liquid monoglyceride / diglyceride / triglyceride mixture, C 6-22 Esters of fatty alcohols and / or Guerbet alcohols with aromatic carboxylic acids, more particularly with benzoic acid, C 2-12 Esters of dicarboxylic acids with linear or branched alcohols containing 1 to 22 carbon atoms or polyols containing 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched C 6-22 Fatty alcohol carbonates, Guerbet carbonates, benzoic acid and linear and / or branched C 6-22 Also suitable are esters with alcohols (e.g. Finsolv® TN), linear or branched, symmetrical or asymmetrical dialkyl ethers containing 6 to 22 carbon atoms per alkyl group, ring-opening products of epoxidized fatty acid esters with polyols, silicone oils and / or aliphatic or naphthenic hydrocarbons, such as squalane, squalene or dialkylcyclohexanes.

[0122] Superfatting agents can be selected from materials such as lanolin and lecithin, as well as polyethoxylated or acylated lanolin and lecithin derivatives, polyol fatty acid esters, monoglycerides and fatty acid alkanolamides, which also act as foam stabilizers.

[0123] The consistency factors mainly used are fatty alcohols or hydroxyfatty alcohols containing 12 to 22, preferably 16 to 18, carbon atoms, and also partial glycerides, fatty acids or hydroxyfatty acids. Preferably, a combination of these substances with alkyl oligoglucosides and / or fatty acid N-methylglucamides of the same chain length and / or polyglycerol poly-12-hydroxystearates is used.

[0124] Suitable thickeners are, for example, Aerosil types (hydrophilic silicas), polysaccharides, more especially xanthan gum, guar-guar, agar-agar, alginates and tyloses, carboxymethylcellulose and hydroxyethylcellulose, furthermore also relatively high molecular weight polyethylene glycol mono- and diesters of fatty acids, polyacrylates (e.g. Carbopols® [Goodrich] or Synthalens® [Sigma]), polyacrylamides, polyvinyl alcohols and polyvinylpyrrolidones, surfactants, such as, for example, ethoxylated fatty acid glycerides, esters of fatty acids with polyols, for example pentaerythritol or trimethylolpropane, narrow-range fatty alcohol ethoxylates or alkyl oligoglucosides, and electrolytes, such as, for example, sodium chloride and ammonium chloride.

[0125] Suitable silicone compounds are, for example, dimethylpolysiloxanes, methylphenylpolysiloxanes, cyclic silicones and amino-, fatty acid-, alcohol-, polyether-, epoxy-, fluorine-, glycoside- and / or alkyl-modified silicone compounds, which can be both liquid-like and resin-like at room temperature. Another suitable silicone compound is simethicone, which is a mixture of dimethicone and hydrogenated silicate with an average chain length of 200-300 dimethylsiloxane units. Typical examples of fats are glycerides, suitable waxes are, inter alia, natural waxes such as candelilla wax, carnauba wax, Japan wax, espartograss wax, cork wax, guaruma wax, rice oil wax, sugarcane wax, ouricury wax, montan wax, beeswax, shellac wax, spermaceti, lanolin (wool wax), uropygial fat, ceresin, ozocerite (earth wax), petrolatum, paraffin wax, microwaxes, etc.; chemically modified waxes (hard waxes), such as montan ester wax, sasol wax, hydrogenated jojoba wax, etc., and synthetic waxes such as polyalkylene waxes and polyethylene glycol waxes.

[0126] Metal salts of fatty acids, such as magnesium, aluminum and / or zinc stearates or ricinoleates, can be used as stabilizers.

[0127] Salts such as sodium chloride may be included as a by-product.

[0128] In the context of the present invention, biogenic agents are, for example, tocopherol, tocopherol acetate, tocopherol palmitate, ascorbic acid, deoxyribonucleic acid, retinol, bisabolol, allantoin, phytantriol, panthenol, AHA acids, amino acids, ceramides, pseudoceramides, essential oils, plant extracts and vitamin complexes.

[0129] Furthermore, film-forming agents may be present. Conventional film-forming agents are, for example, chitosan, microcrystalline chitosan, quaternized chitosan, polyvinylpyrrolidone, vinylpyrrolidone-vinyl acetate copolymers, polymers based on acrylic acid, quaternary cellulose derivatives, collagen, hyaluronic acid and its salts, and similar compounds.

[0130] If desired, further protein hydrolysates known from the prior art, for example based on keratin, can be used, such as the commercially available Nutrilan® Keratin W PP, or wheat-based protein hydrolysates Gluadin® WLM Benz, Gluadin® WK or Gluadin® WP, etc. It is also possible to add small amounts of free amino acids, such as lysine or arginine.

[0131] Cosmetic deodorants attenuate, mask or eliminate body odor. Body odor is formed through the action of skin bacteria on apocrine perspiration, which leads to the formation of unpleasant odorous decomposition products. Deodorants therefore contain active ingredients that act as bacteria inhibitors, enzyme inhibitors, odor absorbers or odor masking agents.

[0132] Basically, suitable bacterial inhibitors are any substances acting against gram-positive bacteria, such as 4-hydroxybenzoic acid and its salts and esters, N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)-urea, 2,4,4'-trichloro-2'-hydroxydiphenyl ether (triclosan), 4-chloro-3,5-dimethylphenol, 2,2'-methylene-bis-(6-bromo-4-chlorophenol), 3-methyl-4-(1-methylethyl)-phenol, 2-benzyl-4-chlorophenol, ... -(4-chlorophenoxy)-propane-1,2-diol, 3-iodo-2-propynyl butylcarbamate, chlorhexidine, 3,4,4'-trichlorocarbanilide (TTC), antibacterial fragrances, thymol, thyme oil, eugenol, nettle oil, menthol, mint oil, farnesol, phenoxyethanol, glycerol monolaurate (GML), diglycerol monocaprate (DMC), salicylic acid-N-alkylamides, such as salicylic acid-n-octylamide or salicylic acid-n-decylamide.

[0133] Suitable enzyme inhibitors are, for example, esterase inhibitors.Esterase inhibitors are preferably trialkyl citrates, such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, tributyl citrate and, in particular, triethyl citrate (Hydagen® CAT, Henkel KGaA, Dusseldorf, Germany).Esterase inhibitors inhibit enzyme activity and thus reduce odor formation. Other esterase inhibitors are sterol sulfates or phosphates, such as lanosterol, cholesterol, campesterol, stigmasterol and sitosterol sulfates or phosphates, dicarboxylic acids and their esters, such as glutaric acid, glutaric acid monoethyl ester, glutaric acid diethyl ester, adipic acid, adipic acid monoethyl ester, adipic acid diethyl ester, malonic acid and malonic acid diethyl ester, hydroxycarboxylic acids and their esters, such as citric acid, malic acid, tartaric acid or tartaric acid diethyl ester, and zinc glycinate.

[0134] Suitable odor absorbers are substances that can absorb and largely retain odor-forming compounds. They reduce the partial pressure of the individual components and thus also the rate at which they spread. An important prerequisite in this respect is that the perfume must remain intact. Odor absorbers are not effective against bacteria. They contain as their main components, for example, complex zinc salts of ricinoleic acid, or special perfumes with an almost neutral odor known to experts as "fixateurs", such as extracts of labdanum or styrax, or certain abietic acid derivatives. Odor masking agents are perfumes or perfume oils that, in addition to their odor masking function, impart their specific perfume note to the deodorant. Suitable perfume oils are, for example, mixtures of natural and synthetic fragrances. Natural fragrances include extracts of flowers, stems and leaves, fruits, peels, roots, trees, herbs and grasses, needles and branches, resins and balsams, etc. Animal raw materials such as civet and beaver may also be used. Typical synthetic fragrance compounds are products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type. Examples of fragrance compounds of the ester type are benzyl acetate, p-tert.butylcyclohexyl acetate, linalyl acetate, phenylethyl acetate, linalyl benzoate, benzyl formate, allyl cyclohexyl propionate, styrallyl propionate and benzyl salicylate. Examples of ethers include, for example, benzyl ethyl ether, and examples of aldehydes include, for example, linear alkanals containing 8 to 18 carbon atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamen aldehyde, hydroxycitronellal, lilial and bougeonal. Examples of suitable ketones are ionones and methyl cedryl ketone. Suitable alcohols are anethole, citronellol, eugenol, isoeugenol, geraniol, linalool, phenylethyl alcohol and terpineol.The hydrocarbons include mainly the terpenes and balsams.However, it is preferred to use a mixture of different perfume compounds that together produce a desired fragrance.Other suitable perfume oils are relatively low-volatility essential oils that are mainly used as aroma ingredients.Examples are sage oil, chamomile oil, clove oil, melissa oil, mint oil, cinnamon leaf oil, lime flower oil, juniper berry oil, vetiver oil, olibanum oil, galbanum oil, ladanum oil, and lavandin oil. The following are preferably used, either individually or in the form of a mixture: bergamot oil, dihydromyrcenol, lilial, lyral, citronellol, phenylethyl alcohol, hexylcinnamaldehyde, geraniol, benzyl acetone, cyclamen aldehyde, linalool, Boisambrene Forte, Ambroxan, indole, hedione, sandelice, citrus oil, mandarin oil, orange oil, allyl amyl glycolate, cyclovertal, lavandin oil, clary oil, geranium oil bourbon, cyclohexyl salicylate, Vertofix Coeur, Iso-E-Super, Fixolide NP NP), evernyl, iraldine gamma, phenylacetic acid, geranyl acetate, benzyl acetate, rose oxide, romillat, irotyl and floramat.

[0135] Antiperspirants reduce sweating, thereby reducing underarm wetness and body odor by affecting the activity of eccrine sweat glands. Aqueous or anhydrous antiperspirants typically contain an astringent active agent, such as a salt of aluminum, zirconium or zinc. Suitable antihydrotic agents of this type are, for example, aluminum chloride, aluminum chlorohydrate, aluminum dichlorohydrate, aluminum sesquichlorohydrate, and their complexes, for example with 1,2-propylene glycol, aluminum hydroxyalantoinate, aluminum chloride tartrate, aluminum zirconium trichlorohydrate, aluminum zirconium tetrachlorohydrate, aluminum zirconium pentachlorohydrate, and their complexes, for example with amino acids, such as glycine. Oil-soluble and water-soluble auxiliaries typically encountered in antiperspirants may also be present in relatively small amounts. Such oil-soluble auxiliaries include, for example, anti-irritation, skin-protecting or pleasant-smelling essential oils, synthetic skin protectants and / or oil-soluble perfume oils.

[0136] Typical water-soluble additives are, for example, preservatives, water-soluble flavorings, pH adjusting agents, e.g., buffer mixtures, water-soluble thickening agents, e.g., water-soluble natural or synthetic polymers, e.g., xanthan gum, hydroxyethylcellulose, polyvinylpyrrolidone or high molecular weight polyethylene oxide, and the like.

[0137] Suitable anti-dandruff agents are climbazole, octopirox and zinc pyrithione.

[0138] Standard film-forming agents are, for example, chitosan, microcrystalline chitosan, quaternized chitosan, polyvinylpyrrolidone, vinylpyrrolidone / vinyl acetate copolymers, polymers based on acrylic acid, quaternary cellulose derivatives, collagen, hyaluronic acid and its salts and similar compounds.

[0139] Additionally, hydrotropes such as ethanol, isopropyl alcohol or polyols may be used to improve the flow behavior.

[0140] Suitable preservatives are, for example, phenoxyethanol, formaldehyde solution, parabens, pentanediol or sorbic acid and other classes of compounds listed in Annex 6, Parts A and B of the Kosmetikverordnung (Cosmetics Directive). Suitable insect repellents are N,N-diethyl-m-toluamide, pentane-1,2-diol or ethyl butylacetylaminopropionate. A suitable self-tanning agent is dihydroxyacetone.

[0141] Suitable perfume oils are mixtures of natural and synthetic fragrances. Natural fragrances include extracts of flowers (lily, lavender, rose, jasmine, neroli, ylang-ylang), stems and leaves (geranium, patchouli, petitgrain), fruits (anise, coriander, caraway, juniper), peels (bergamot, lemon, orange), roots (nutmeg, angelica, celery, cardamom, costus, iris, calmus), wood (pine, sandalwood, guaiacwood, cedarwood, rosewood), herbs and grasses (tarragon, lemongrass, sage, thyme), needles and branches (spruce, fir, pine, pumila), resins and balsams (galbanum, elemi, benzoin, myrrh, olibanum, opoponax), etc. Animal sources, such as civet and beaver, may also be used. Typical synthetic fragrance compounds are products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type. Examples of fragrance compounds of the ester type are benzyl acetate, phenoxyethyl isobutyrate, p-tert.butylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinyl acetate, phenylethyl acetate, linalyl benzoate, benzyl formate, ethylmethylphenylglycinate, allylcyclohexylpropionate, styralyl propionate and benzyl salicylate. Examples of ethers include benzyl ethyl ether, and examples of aldehydes include linear alkanals containing 8 to 18 carbon atoms, such as citral, citronellal, citronellyloxyacetaldehyde, cyclamen aldehyde, hydroxycitronellal, lilial and bougeonal. Examples of suitable ketones are ionone, isomethyl ionone and methyl cedryl ketone. Suitable alcohols are anethol, citronellol, eugenol, isoeugenol, geraniol, linalool, phenylethyl alcohol and terpineol. Hydrocarbons include mainly terpenes and balsams. However, it is preferred to use mixtures of different perfume compounds which together produce the desired fragrance.Other suitable perfume oils are essential oils of relatively low volatility which are primarily used as aroma components: examples are sage oil, chamomile oil, clove oil, melissa oil, mint oil, cinnamon leaf oil, lime flower oil, juniper berry oil, vetiver oil, olibanum oil, galbanum oil, ladanum oil and lavandin oil. The following are preferably used, either individually or in the form of a mixture: bergamot oil, dihydromyrcenol, lilial, lyral, citronellol, phenylethyl alcohol, hexylcinnamon aldehyde, geraniol, benzyl acetone, cyclamen aldehyde, linalool, Boisambrene Forte, Ambroxan, indole, hedione, sandelice, citrus oil, mandarin oil, orange oil, allyl amyl glycolate, cyclovertal, lavandin oil, clari oil, damascone, geranium oil bourbon, cyclohexyl salicylate, Vertofix Coeur, Iso-E-Super, Fixolide NP NP), evernyl, iraldine gamma, phenylacetic acid, geranyl acetate, benzyl acetate, rose oxide, romillat, irotyl and floramat.

[0142] Dyes which may be used are substances approved for and suitable for use in cosmetics, such as those listed in the publication "Kosmetische Faerbemittel (Cosmetic Colorant)" issued by the Farbstoffkommission der Deutschen Forschungsgemeinschaft (Dyes commission of the German research society), Verlag Chemie, Weinheim, 1984, pp. 81-106. Examples are cochineal red A (CI 16255), patent blue V (CI 42051), indigotine (CI 73015), chloropyrin (CI 75810), quinoline yellow (CI 47005), titanium dioxide (CI 77891), indanthrene blue RS (CI 69800) and madder lake (CI 58000). Luminol may also be present as a luminescent dye. These dyes are usually used in concentrations of 0.001 to 0.1% by weight relative to the total mixture.

[0143] Based on the personal care composition, these other ingredients E) are preferably used in an amount of up to 100% by weight.

[0144] Finally, another subject of the invention is a process for producing a personal care composition according to the claims, characterized in that one or more surfactants C) and a wax dispersion B) and optionally a cationic polymer D) are mixed at room temperature and a concentrate A) according to at least one of claims 1 to 13 is added and stirred together, whereby optionally further components E) can be added before or after the addition of the concentrate A). EXAMPLES

[0145] Example 1: Concentrate with hydrogenated castor oil as stabilizer (=phase A)

[0146] The concentrates were prepared by mixing all compounds listed in Table 1 below in the amounts indicated (wt % as active material) at 90°C until homogeneous, stirring (100 rpm) for 5-120 minutes, and cooling to room temperature (approximately 25°C).

[0147] The following ingredients were used (active substance = AS):

[0148] Dehyton® PK 45: Cocamidopropyl betaine: 37% by weight active material; 7% by weight sodium chloride and up to 100% by weight water Cutina® HR Powder: Hydrogenated castor oil; 100% by weight active substance Cetiol® HE: Nonionic surfactant; mono- and diesters of coconut oil-based fatty acid mixtures and glycerol, ethoxylated with 7 moles of ethylene oxide. Plantacare® 2000: Aqueous solution of C8-C16 fatty alcohol polyglycosides; INCI: Decyl glucoside; Non-ionic surfactant, approx. 51-55% active substance Plantacare® 818: Aqueous solution of C8-C18 fatty alcohol polyglycosides; INCI coco-glucoside; non-ionic surfactant, approx. 51-53% active substance Texapon® N70: Aqueous solution of the Na salt of C12-C14 alkyl ether sulfate; INCI: Sodium laureth sulfate; anionic surfactant; about 70% active substance.

[0149] [Table 1-1]

[0150] Table 1a shows that the inventive concentrates having hydrogenated castor oil (a) in an amount of more than 7% by weight and a nonionic emulsifier exhibit a significantly lower viscosity than the concentrate containing betaine and an additional anionic surfactant (Comparative Example C1a).

[0151] [Table 1-2]

[0152] Table 1b shows that the comparative concentrates comprising a nonionic emulsifier, hydrogenated castor oil (a) and an anionic surfactant are solid or pasty, i.e. exhibit very high viscosities, compared to the inventive concentrates not comprising an anionic surfactant according to Table 1a.

[0153] Example 2: Shower cream

[0154] The concentrate according to Example 1 of the invention was used in a shower cream containing the following wax dispersion WD-1 (% by weight on active substance basis; AS 40.8%): 27.0% by weight of a mixture of about 6% by weight of monoesters of ethylene glycol and about 94% by weight of diesters of ethylene glycol, where the fatty acids constituting the esters are It had about 90-98.5 weight percent C18 atoms and 2-10 weight percent C16+C20+C22 carbon atoms (as determined by GC); 10% by weight of sodium laureth sulfate (with 1 EO), 1.5 to 2.0% by weight of cocamidopropyl betaine, 1.0 to 3.0% by weight of glyceryl monooleate, Up to 100% by weight water, citric acid and benzoates.

[0155] The dispersed wax had an average particle size d50 of 1.5-2.5 μm as measured by laser diffraction (Mastersizer 2000®).

[0156] or wax dispersion WD-2 (wt. % active substance basis; AS approx. 39%): 22% by weight of a mixture of about 6% by weight of monoesters of ethylene glycol and about 94% by weight of diesters of ethylene glycol, where the fatty acids constituting the esters are It had about 90-98.5 weight percent C18 atoms and 2-10 weight percent C16+C20+C22 carbon atoms (as determined by GC); 10 to 20% by weight of coconut oil alkyl glucoside, 1.55% by weight of glyceryl monooleate, Up to 100% by weight water, citric acid and benzoates.

[0157] The dispersed wax had an average particle size d50 of 1.5-3.0 μm as measured by laser diffraction (Mastersizer 2000®).

[0158] or wax dispersion WD-3 (wt. % active substance basis; AS approx. 40.8%): 34.0% by weight of a mixture of about 6% by weight of monoesters of ethylene glycol and about 94% by weight of diesters of ethylene glycol, where the fatty acids in the esters are It had about 90-98.5 weight percent C18 atoms and 2-10 weight percent C16+C20+C22 carbon atoms (as determined by GC); 10% by weight of sodium laureth sulfate (with 1 EO), 1.5 to 2.0% by weight of cocamidopropyl betaine, Up to 100% by weight water, citric acid and benzoates.

[0159] A wax dispersion was used as phase B).

[0160] The following additional ingredients were used: Dehyquart® Guar N is guar gum, 2-hydroxy-3-(trimethylammonio)propyl ether, chloride; IN-CI: Guar hydroxypropyltrimonium chloride; AS approx. 90% Plantacare® 818: Aqueous solution of C8-C18 fatty alcohol polyglycosides; INCI coconut alkyl glucosides; non-ionic surfactant; approx. 51-53% active substance Texapon® SB 3 KC: Di-sodium salt of lauryl polyglycol ether sulfosuccinate; INCI: Disodium laureth sulfosuccinate; Anionic surfactant 31.5-34.5% Jordapon® SCI: Sodium Cocoyl Isethionate; AS: at least 82% Arlypon® TT: Mixture of ethoxylated and propoxylated trimethylolpropane trioleates and ethoxylated fatty alcohols; INCI: PEG / PPG-120 / 10 trimethylolpropane trioleate (and) laureth-2 Plantasil® 4V: A mixture of ethoxylated hydrogenated castor oil, ethoxylated glyceryl fatty acid esters, ethoxylated polyol esters and glycerin; INCI: PEG-40 hydrogenated castor oil (and) PEG-7 glyceryl cocoate (and) PEG / PPG-120 / 10 trimethylolpropane trioleate (and) glycerin Cetiol® LDO: A blend of dicaprylyl ether and lauryl alcohol Covi-ox® T 90 C: Tocopherol Lamesoft® PO 65: Coco-alkyl glucoside (and) glyceryl oleate D-Panthenol(R) 75 W: Panthenol Lamesoft(R)TM Benz: Glycol distearate, coconut oil alkyl glucoside, glyceryl oleate, glyceryl stearate

[0161] The shower cream of table 2 was prepared according to the following procedure: all ingredients of phases B) and C) and D) were mixed together under stirring at room temperature (23°C) until they were completely homogenous. The concentrate prepared according to example 1 (=phase A) was added, followed by phase E) and stirring until a completely homogenous shower cream product was obtained. The ingredients were used in the commercial form mentioned above, in the weight % indicated. The active substance of the active ingredients is indicated in % AS.

[0162] [Table 2-1] [Table 2-2] [Table 2-3]

[0163] Example 3: Creamy Care Body Wash A body wash composition was prepared by mixing the ingredients of Phase A under stirring and allowing to swell for 10 minutes. The ingredients of Phase B were mixed in the given order and stirred until completely homogenous. Phase A was added to Phase B and the ingredients of Phase C were added in small portions. The pH was adjusted by adding lactic acid in D).

[0164] [Table 3]

[0165] The body was creamy and white in color and was stable for more than 4 weeks.

[0166] Example 4: Whitening Body Wash The ingredients of Phase A were mixed in the order given until completely homogeneous. The pH was adjusted by adding Phase B and the viscosity was adjusted by adding Phase C.

[0167] [Table 4]

[0168] Example 5: Whitening Shampoo The shampoo was prepared in a similar manner as described in Example 4.

[0169] [Table 5]

[0170] Example 6: Whitening Shampoo The ingredients of Phase A were mixed under stirring and allowed to swell for about 10 minutes. The ingredients of Phase B were added in the given order and stirred until completely homogenous. The pH was adjusted by adding Phase C and the viscosity was adjusted by adding Phase D.

[0171] [Table 6]

[0172] Example 7: Conditioning Shampoo The ingredients of Phase A were mixed under stirring and allowed to swell for approximately 10 minutes. The ingredients of Phase B were added in the order given, stirring after each addition until completely homogenous. Phase A was added to Phase B, followed by the addition of Phase C in small increments. The pH was adjusted by adding Phase D, and the viscosity was adjusted by adding Phase E.

[0173] [Table 7] The present invention includes, for example, the following aspects. [Section 1] 1. A stabilizer concentrate for a wax selected from the group consisting of monoesters and / or diesters of monoethylene glycol and / or diethylene glycol, whereby said wax is in the form of a dispersion contained in a personal care composition, said concentrate comprising: (a) hydrogenated castor oil; (b) a non-ionic emulsifier selected from the group consisting of fatty alcohol polyglycol ethers, fatty acid polyglycol esters, ethoxylated triglycerides, ethoxylated fatty acid glycerol esters; mixed ethers or mixed formals; polysorbates and sugar-based carbohydrates; (c) optionally an amphoteric and / or zwitterionic surfactant; (d) optionally other auxiliary substances or additives (including salts); (e) water provided that the concentrate does not contain an anionic surfactant, contains hydrogenated castor oil a) in an amount greater than 7.0% by weight and not greater than 20% by weight, the sum of the amounts of (a) to (d) is within the range of 30% to 80% by weight, and water totals 100% by weight; The concentrate. [Section 2] Item 2. The concentrate according to item 1, characterized in that the concentrate contains (a) hydrogenated castor oil in an amount ranging from 7.5 to 15% by weight, preferably 8.5 to 12% by weight, based on the concentrate. [Section 3] 3. The concentrate according to claim 1 or 2, characterized in that it comprises a non-ionic emulsifier b) selected from the group consisting of sugar-based carbohydrates, preferably alk(en)yl polyglycosides, glucuronic acid derivatives and fatty acid N-alkylglycamides, in particular selected from the group consisting of alk(en)yl polyglycosides. [Section 4] 4. The concentrate according to any one of claims 1 to 3, characterized in that the concentrate comprises a non-ionic emulsifier b) in an amount ranging from 10 to 60% by weight, based on the concentrate. [Section 5] 5. The concentrate according to any one of items 1 to 4, characterized in that the quantitative ratio of the nonionic emulsifier b) to the hydrogenated castor oil (a) is within the range of 2:1 to 4:1. [Section 6] Item 6. The concentrate according to any one of items 1 to 5, characterized in that the concentrate contains other auxiliaries or additives (including salts) (d) in an amount ranging from 0.1 to 15% by weight based on the concentrate. [Section 7] Item 7. Concentrate according to any one of items 1 to 6, characterized in that the concentrate comprises an amphoteric and / or zwitterionic surfactant (c) selected from the group consisting of betaines and / or amphoacetates. [Section 8] 8. The concentrate according to any one of claims 1 to 7, characterized in that the concentrate comprises an amphoteric and / or zwitterionic surfactant (c) in an amount ranging from 0 to 30% by weight, based on the concentrate. [Section 9] The concentrate is (a) more than 7.0% by weight but not more than 20% by weight of hydrogenated castor oil; (b) 10.0 to 60.0 weight percent of a nonionic emulsifier; (d) 0.1 to 15.0% by weight of other auxiliaries or additives (including salts), and (e) Water, in an amount totalling 100% by weight 8. The concentrate according to any one of items 1 to 7, comprising: [Section 10] The concentrate is (a) 7.5 to 20% by weight of hydrogenated castor oil; (b) 20.0 to 50.0% by weight of a nonionic emulsifier; (d) 0.1 to 15.0% by weight of other auxiliaries or additives (including salts), and (e) Water, in an amount totalling 100% by weight 10. The concentrate according to any one of items 1 to 9, comprising: [Section 11] Item 11. The concentrate according to any one of items 1 to 10, characterized in that the concentrate has a viscosity in the range of 2,500 to 8,000 mPas, in particular 3,000 to 7,000 mPas (Brookfield, RVT; spindle 4; 10 rpm; 20 ° C.). [Section 12] The concentrate according to any one of items 1 to 11, characterized in that the concentrate stabilizes a wax containing 90 to 100% by weight of diethylene glycol difatty acid ester and 0 to 10% by weight of diethylene glycol monofatty acid ester, based on the weight % of the wax, particularly preferably a wax containing 90 to 98% by weight of stearic acid and 2 to 10% by weight of an ester of a fatty acid mixture containing other saturated fatty acids having 16 to 22 carbon atoms, based on the weight % of the fatty acid mixture. [Section 13] Item 13. The concentrate according to any one of items 1 to 12, characterized in that the concentrate stabilizes a wax having an average particle size d50, measured via laser diffraction on a Mastersizer 2000®, of 0.8 to 3.5 μm, in particular 1.0 to 3.0 μm. [Section 14] 12. A method for producing the concentrate according to any one of claims 1 to 11, characterized in that the concentrate is produced by mixing together components (a), (b) and optionally (c) and / or optionally (d), adding the required amount of water, heating the mixture to about 85-95°C, and then cooling with stirring. [Section 15] Use of the concentrate according to any one of claims 1 to 11 and / or 14 as a stabilizer for a wax selected from the group consisting of monoesters and / or diesters of monoethylene glycol and / or diethylene glycol, whereby the wax is in the form of a dispersion contained in a personal care composition. [Section 16] Item 16. Use of the concentrate according to item 15, characterized in that the concentrate is produced by the method according to item 14. [Section 17] 16. Use of the concentrate according to item 15, characterized in that the concentrate is a stabilizer for waxes to be used in the form of wax dispersions as pearlizing and / or opacifying agents in personal care compositions, preferably personal care compositions comprising a cationic polymer. [Section 18] A) 0.1% to 5% by weight, in particular 0.25% to 3% by weight, of a concentrate according to any one of claims 1 to 13, and B) a wax dispersion comprising a wax selected from the group consisting of monoesters and / or diesters of monoethylene glycol and / or diethylene glycol, and C) one or more cleaning surfactants selected from the group consisting of anionic surfactants, nonionic surfactants, amphoteric surfactants or zwitterionic surfactants, and D) optionally a cationic polymer, and E) optionally one or more other components different from C) and / or D). 1. A personal care composition comprising: [Section 19] Item 18. A method for producing a personal care composition according to item 18, characterized in that one or more surfactants C) and a wax dispersion B) and optionally a cationic polymer D) are mixed at room temperature and a concentrate A) according to any one of items 1 to 13 is added and stirred together, whereby optionally other ingredients E) can be added before or after the addition of the concentrate A).

Claims

1. 1. A stabilizer concentrate for a wax selected from the group consisting of monoesters and / or diesters of monoethylene glycol and / or diethylene glycol, whereby the wax is in the form of a dispersion contained in a personal care composition, the concentrate comprising: (a) hydrogenated castor oil; (b) a non-ionic emulsifier selected from the group consisting of fatty alcohol polyglycol ethers, fatty acid polyglycol esters, ethoxylated triglycerides, ethoxylated fatty acid glycerol esters; mixed ethers or mixed formals; polysorbates and sugar-based carbohydrates; (c) optionally an amphoteric and / or zwitterionic surfactant; (d) optionally other auxiliary substances or additives (including salts); (e) water provided that the concentrate is free of anionic surfactants, contains hydrogenated castor oil a) in an amount greater than 7.0% and less than or equal to 20% by weight, the sum of the amounts of (a) through (d) being within the range of 30% to 80% by weight, and water totaling 100% by weight.

2. 2. The concentrate according to claim 1, characterized in that the concentrate contains (a) hydrogenated castor oil in an amount ranging from 7.5 to 15% by weight relative to the concentrate.

3. 3. The concentrate according to claim 1 or 2, characterized in that it comprises a non-ionic emulsifier b) selected from the group consisting of sugar-based carbohydrates.

4. 4. The concentrate according to claim 1, wherein the concentrate comprises non-ionic emulsifier b) in an amount ranging from 10 to 60% by weight relative to the concentrate.

5. 5. Concentrate according to claim 1, characterized in that the quantitative ratio between nonionic emulsifier b) and hydrogenated castor oil (a) is in the range from 2:1 to 4:

1.

6. 6. The concentrate according to claim 1, further comprising (d) other auxiliaries (including salts) in an amount ranging from 0.1 to 15% by weight relative to the concentrate.

7. 7. Concentrate according to claim 1, characterized in that it comprises an amphoteric and / or zwitterionic surfactant (c) selected from the group consisting of betaines and / or amphoacetates.

8. 8. Concentrate according to claim 1 , characterized in that it comprises amphoteric and / or zwitterionic surfactant (c) in an amount ranging from 0 to 30% by weight relative to the concentrate.

9. The concentrate is (a) More than 7.0% but not more than 20% by weight of hydrogenated castor oil; (b) 10.0 to 60.0 weight percent of a nonionic emulsifier; (d) 0.1 to 15.0% by weight of other auxiliaries (including salts), and (e) Water, in an amount totalling 100% by weight. The concentrate according to any one of claims 1 to 6, characterized in that it consists of

10. The concentrate is (a) 7.5 to 20% by weight of hydrogenated castor oil; (b) 20.0 to 50.0 weight percent of a nonionic emulsifier; (d) 0.1 to 15.0% by weight of other auxiliaries (including salts), and (e) Water, in an amount totalling 100% by weight.

10. The concentrate according to any one of claims 1 to 6 and 9, characterized in that it consists of

11. 11. The concentrate according to claim 1, characterized in that it has a viscosity in the range of 2,500 to 8,000 mPas (Brookfield, RVT; spindle 4; 10 rpm; 20° C.).

12. 12. The concentrate according to claim 1, characterized in that the concentrate stabilizes a wax comprising 90-100% by weight of diethylene glycol di-fatty acid ester and 0-10% by weight of diethylene glycol mono-fatty acid ester, based on the weight percent of the wax.

13. 13. Concentrate according to any one of the preceding claims, characterized in that the concentrate stabilizes a wax having a mean particle size d50, measured via laser diffraction on a Mastersizer 2000®, between 0.8 and 3.5 μm.

14. A process for preparing the concentrate according to any one of claims 1 to 11, characterized in that the concentrate is prepared by mixing together components (a), (b) and optionally (c) and / or optionally (d), adding the required amount of water, heating the mixture to 85-95°C and then cooling with stirring.

15. 12. Use of the concentrate according to any one of claims 1 to 11 as a stabiliser for waxes selected from the group consisting of mono- and / or diesters of monoethylene glycol and / or diethylene glycol, whereby the wax is in the form of a dispersion included in a personal care composition.

16. Use of the concentrate according to claim 15, characterized in that the concentrate is produced by the method according to claim 14.

17. 16. Use of the concentrate according to claim 15, characterized in that it is a stabilizer for waxes used in the form of wax dispersions as pearlizing and / or opacifying agents in personal care compositions.

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