EP2858723A2

EP2858723A2 - Thickened antiperspirant roll-ons having an improved residue behavior

Info

Publication number: EP2858723A2
Application number: EP13727206.8A
Authority: EP
Inventors: Thomas Döring; Natascha Schevardo
Original assignee: Henkel AG and Co KGaA
Current assignee: Henkel AG and Co KGaA
Priority date: 2012-06-08
Filing date: 2013-06-07
Publication date: 2015-04-15
Also published as: WO2013182667A3; CN104812448A; WO2013182667A2; US20150086499A1; DE102012209621A1

Abstract

Disclosed are antiperspirant compositions which are suitable for application with a roll-on applicator, contain water, at least one antiperspirant aluminum or aluminum-zirconium compound, dehydroxanthan gum, and at least one thickening polymer selected from among cellulose, cellulose ethers, and mixtures thereof, have an increased shelf life even at elevated temperatures, and leave fewer visible residues on the skin.

Description

"Thickened antiperspirant rollons with improved residue behavior"

The present application relates to hydrous antiperspirant compositions, also referred to as antiperspirant compositions, which are suitable for application with a roll applicator and have improved storage stability even at elevated temperatures and reduced visible residues on the skin, wherein the compositions water, at least one antiperspirant aluminum or aluminum-zirconium compound, furthermore dehydroxane gum gum and additionally at least one thickening polymer selected from cellulose and cellulose ethers and mixtures thereof.

There are numerous ways to apply antiperspirant compositions to the skin. Dimensionally stable pen masses are spread over the skin from a pen dispenser until an effective amount is applied. Gels and creams can also be applied with pen-like dispensers that are painted over the skin with a dispenser surface. In particular, for antiperspirant and / or deodorant compositions for the forearm area numerous different forms of application have been developed, in addition to the already mentioned above all the propellant-containing and propellant-free sprays and the roll-on compositions. In the latter, a slightly thickened liquid is applied from a reservoir via a rotatably mounted ball by rolling over the skin. Antiperspirant roll-on compositions may be anhydrous and oil-based; For example, the oil-based Sud conventional antiperspirant sprays is also suitable for administration as Rollon. Here, the antiperspirant active is present as a suspended powder in an oil thickened to prevent settling of the powder particles with a lipophilic gelling agent. However, such Rollons are hardly represented in the market. Conventional antiperspirant roll-on compositions are water-based, that is they contain about 50% by weight and more of their total weight of water. The antiperspirant active, usually an antiperspirant aluminum or aluminum-zirconium compound, is in dissolved form. A thickening is required here to allow the applicability of the composition with a roll applicator. Usually, the thickening is carried out with a hydrophilic thickener. In the selection of the hydrophilic thickener, for example, the acidic pH of the roll-on composition must be taken into account, that is, polyacrylates usually can not be used for this purpose. Instead, starches, starch derivatives, cellulose and cellulose derivatives are used. These starches, starch derivatives, cellulose and cellulose derivatives can pose the difficulty that they decompose under the influence of the acidic antiperspirant active ingredients, so that the originally set viscosity of the composition decreases significantly after a short time, so that the composition runs down after rolling on the skin and creates an unpleasant feeling of wetness.

Another disadvantage of known antiperspirant rollons, which are present as an emulsion, is their lack of temperature stability. Here, for example, in the case of severe temperature fluctuations, which the products may be exposed to during transport and storage, the coalescence of the droplets of the dispersed phase may occur, which impairs the product properties.

Another disadvantage of known water-based antiperspirant rollons is the whitening effect which occurs when the composition dries on the skin after application and thus the portion of the antiperspirant salt not yet absorbed by the skin becomes visible as an undesirable white residue on the skin.

It was therefore an object of the present application to provide water-based antiperspirant rollons having improved viscosity stability.

Another object of the present application was to provide antiperspirant rollons in the form of hydrous emulsions having improved temperature stability.

Another object of the present application was to provide water-based antiperspirant rollons with improved residue behavior and in particular reduced white residues.

Surprisingly, it has been found that the above objects are achieved by a combination of thickeners, the dehydroxanthan gum in combination with at least one nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof.

The subject matter of the present application is therefore an antiperspirant composition for roll-on application comprising the four following components:

a) water,

b) at least one antiperspirant aluminum or aluminum-zirconium compound, c) dehydroxanthan gum,

d) at least one nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof.

Further preferred embodiments of the compositions according to the invention are the

Subclaims refer.

water content

The compositions according to the invention preferably contain 40-90% by weight, more preferably 50-85% by weight, most preferably 60-80% by weight, even more preferably 65-75% by weight of water, each based on the total weight the composition. For the purposes of the present application, "water" means "free water", ie water which is not in the form of water of crystallization, water of hydration or similar molecularly bound water in the antiperspirant composition is included. The content of water of crystallization, water of hydration or similar molecularly bound water which is contained in the constituents used, in particular in the antiperspirant active ingredients, does not constitute free water in the context of the present application. Free water is water which is used, for example, as a solvent or as Solvent component of other active ingredients in the composition of the invention is included.

For the purposes of the present application, "normal conditions" are a temperature of 20 ° C. (dimensional reference temperature) and a pressure of 1013 mbar. Melting point data likewise refer to a pressure of 1013 mbar.

Dehydroxanthan gum

The compositions of the present invention preferably contain dehydroxanthan gum in an amount of 0.05-1 wt%, more preferably 0.1-0.8 wt%, most preferably 0.2-0.5 wt%, respectively based on the total weight of the composition.

Furthermore, the compositions according to the invention comprise at least one nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof.

With the combination of dehydroxanthan gum with at least one nonionic thickening polymer, which is selected from cellulose and cellulose ethers and mixtures thereof, the viscosities of the compositions according to the invention in the application-technically required range between 1500 and 2500 mPas, the viscosity at 23 ° C with a Rotationsviskosi - Brookfield meter, RVF device, spindle 4, shear rate (revolution frequency) 20 min ^"1 , without Helipath, is measured.

Water-based antiperspirant rollons which contain only cellulose or a cellulose ether, for example hydroxyethyl cellulose, and no dehydroxanthan gum, exhibit unstable viscosities with respect to the combination of dehydroxanthan gum and cellulose or cellulose ethers with the same amount of thickener. Water-based antiperspirant rollons thickened only with dehydroxanthan gum are stable, but show an undesirable whitening effect after application and drying (Example 1).

By combining dehydroxanthan gum with at least one nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof, antiperspirant oil-in-water emulsions with particularly favorable stability properties are obtained at temperatures up to 45 ° C. The viscosities are in the application-technically required range between 1500 and 2500 mPas (23 ° C). Antiperspirant oil-in-water emulsions containing only the cellulose ether, hydroxyethyl cellulose and no dehydroxanthan gum, are already separated into two phases at 40 ° C after eight weeks.

Preferred cellulose ethers are selected from hydroxyalkylcelluloses, in particular from hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, cetyl hydroxyethylcellulose, hydroxybutylmethylcellulose and methylhydroxyethylcellulose and mixtures thereof. Highly preferred is hydroxyethylcellulose. It is further highly preferred that hydroxyethyl cellulose be included in the composition as well as dehydroxanthan gum as the sole thickening polymer.

Preferred compositions according to the invention comprise at least one nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof, in a total amount of 0.05-1% by weight, preferably 0.1-0.7% by weight, more preferably 0.1-0.3% by weight, based in each case on the total weight of the composition.

Further preferred compositions according to the invention contain from 0.05 to 1% by weight, preferably from 0.1 to 0.7% by weight, particularly preferably from 0.1 to 0.3% by weight, of hydroxyethylcellulose, in each case based on the total weight of Composition.

Further preferred compositions according to the invention contain, based in each case on the total weight of the composition, 0.05-1.0% by weight, preferably 0.1-0.8% by weight, particularly preferably 0.2-0.5% by weight. %, Dehydroxanthan gum and 0.05-1% by weight, preferably 0.1-0.7% by weight, more preferably 0.1-0.3% by weight, of hydroxyethylcellulose.

Further preferred compositions according to the invention are characterized in that dehydroxanthan gum and the total amount of nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof, in a weight ratio of 1 to 2.5, preferably 1, 2 to 2.0, particularly preferably 1 , 4 to 1, 6 are included.

Further preferred compositions according to the invention are characterized in that dehydroxanthan gum and hydroxyethylcellulose are present in a weight ratio of from 1 to 2.5, preferably from 1.2 to 2.0, more preferably from 1.4 to 1.6.

Antiperspirant aluminum or aluminum-zirconium compound

Particularly preferred antiperspirant actives are selected from aluminum chlorohydrate, aluminum chlorohydrate, in particular having the general formula [Al ₂ (OH) ₅ CI ^■ 1 -6 H ₂ 0] _n, [AI preferably ₂ (OH) ₅ CI 2-3 ^■ H ₂ 0 ] _n , which may be in non-activated or in activated (depolymerized) form, and aluminum chlorohydrate having the general formula [Al ₂ (OH) ₄ Cl ₂ ^■ 1 -6 H ₂ O] _n , preferably [Al ₂ (OH) ₄ CI ₂ ^■ 2-3 H ₂ O] _n , which may be in unactivated or in activated (depolymerized) form.

The preparation of preferred antiperspirant agents is disclosed, for example, in US 3887692, US 3904741, US 4359456, GB 2048229 and GB 1347950.

Also preferred are aluminum sesquichlorohydrate, aluminum dichlorohydrate, aluminum chlorohydrex-propylene glycol (PG) or aluminum chlorohydrex-polyethylene glycol (PEG), aluminum or aluminum zirconium glycol complexes, eg. Aluminum or aluminum zirconium-propylene glycol complexes, aluminum sesquichlorohydrex PG or aluminum sesquichlorohydrex PEG, aluminum PG-dichlorohydrx or aluminum PEG-dichlorhydrex, aluminum hydroxide, furthermore selected from the aluminum niumzirconiumchlorhydraten as Aluminiumzirconiumtrichlorhydrat, Aluminiumzirconiumtetrachlor- hydrate Aluminiumzirconiumpentachlorhydrat, Aluminiumzirconiumoctachlorhydrat, the aluminum-zirconium-chlorohydrate konium-glycine complexes, such as Aluminiumzirconiumtrichlorhydrexglycin, Aluminiumzirco- niumtetrachlorhydrexglycin, Aluminiumzirconiumpentachlorhydrexglycin, Aluminiumzirconiumoctachlor- hydrexglycin, potassium aluminum sulfate (KAI (S0 ₄₎ ₂ 12H ₂ ^■ 0, alum), dehydrated alum (KAI (S0 ₄ ) ₂ with zero to 1 1 mol of water of crystallization), aluminum undecylenoyl collagen amino acid, sodium aluminum lactate + aluminum sulfate, sodium aluminum chlorhydroxactate, aluminum bromohydrate, aluminum chloride, the aluminum salts of lipoamino acids, aluminum sulfate, aluminum lactate, aluminum chlorohydrate, and Sodium aluminum chlorhydroxylactate and mixtures thereof.

Antiperspirant active ingredients which are particularly preferred according to the invention are selected from what are known as "activated" aluminum and aluminum zirconium salts, which are also referred to as "enhanced activity" as antiperspirant active ingredients. Such agents are known in the art and are also commercially available. Their preparation is disclosed, for example, in GB 2048229, US 4775528 and US 6010688. Activated aluminum and aluminum zirconium salts are typically produced by heat treating a relatively dilute solution of the salt (e.g., about 10% by weight salt) to increase its HPLC peak 4-to-peak 3 area ratio. The activated salt can then be dried to a powder, in particular spray-dried. In addition to the spray drying z. B. also suitable for drum drying.

Activated aluminum and aluminum zirconium salts typically have a HPLC peak 4-to-peak 3 area ratio of at least 0.4, preferably at least 0.7, more preferably at least 0.9, with at least 70% of the aluminum attributable to these peaks ,

Activated aluminum and aluminum zirconium salts do not necessarily have to be used as a spray-dried powder. Antiperspirant active agents which are likewise preferred according to the invention are nonaqueous solutions or solubilisates of an activated aluminum or aluminum zirconium antiperspirant salt, for example according to US Pat. No. 6,010,688, which is prepared by adding an effective amount of a polyhydric alcohol having 3 to 6 carbon atoms and 3 to 6 hydroxyl Groups, preferably propylene glycol, sorbitol and pentaerythritol, are stabilized against the loss of activation against the rapid degradation of the HPLC peak 4: peak 3 area ratio of the salt. For example, preferred are compositions containing by weight (USP): 18-45% by weight of an activated aluminum or aluminum zirconium salt, 55-82% by weight of at least one anhydrous polyhydric alcohol of 3 to 6 carbon atoms and 3 to 6 Hydroxyl groups, preferably propylene glycol, butylene glycol, diethylene glycol, dipropylene glycol, glycerol, sorbitol and pentaerythritol, more preferably propylene glycol.

Also particularly preferred are complexes of activated antiperspirant aluminum or aluminum zirconium salts with a polyhydric alcohol containing 20-50% by weight, more preferably 20-42% by weight, activated antiperspirant aluminum or aluminum zirconium salt and 2-16% by weight .- % molecularly bound water, the remainder to 100% by weight of at least one polyhydric alcohol having 3 to 6 carbon atoms and 3 to 6 hydroxyl groups. Propylene glycol, propylene glycol / sorbitol mixtures and propylene glycol / pentaerythritol mixtures are preferred such alcohols. Such inventively preferred complexes of an activated antiperspirant aluminum or aluminum zirconium salt with a polyhydric alcohol are, for. As disclosed in US 5643558 and US 6245325.

Further preferred antiperspirant active substances are basic calcium aluminum salts, as disclosed, for example, in US Pat. No. 2,571,030. These salts are prepared by reacting calcium carbonate with aluminum chlorhydroxide or aluminum chloride and aluminum powder or by adding calcium chloride dihydrate to aluminum chlorhydroxide.

Other preferred antiperspirant actives are aluminum-zirconium complexes as disclosed, for example, in US Pat. No. 4,017,599, which are buffered with salts of amino acids, in particular with alkali metal and alkaline earth glycinates.

Other preferred antiperspirant actives are activated aluminum or aluminum zirconium salts, such as disclosed in US 6245325 or US 6042816, containing 5-78% by weight (USP) of an activated antiperspirant aluminum or aluminum zirconium salt, an amino acid or hydroxyalkanoic acid in an amount to provide an (amino acid or hydroxyalkanoic acid) to (Al + Zr) weight ratio of 2: 1-1: 20 and preferably 1: 1 to 1:10, and a water-soluble calcium salt in one Amount to provide a Ca: (Al + Zr) weight ratio of 1: 1 - 1:28 and preferably 1: 2 - 1:25. Particularly preferred solid activated antiperspirant salt compositions, for example according to US 6245325 or US 6042816, contain 48-78% by weight (USP), preferably 66-75% by weight of an activated aluminum or aluminum zirconium salt and 1-16% by weight. %, preferably 4-13% by weight molecularly bound water (water of hydration), furthermore sufficient water-soluble calcium salt, that the Ca: (Al + Zr) weight ratio is 1: 1-1: 28, preferably 1: 2-1: 25, is and so much amino acid that the amino acid to (Al + Zr) - weight ratio 2: 1 - 1: 20, preferably 1: 1 - 1: 10, is.

Further particularly preferred solid antiperspirant activated salt compositions, for example according to US 6245325 or US 6042816, contain 48-78% by weight (USP), preferably 66-75% by weight of an activated aluminum or aluminum zirconium salt and 1-16% by weight. %, preferably 4-13% by weight molecularly bound water (water of hydration), furthermore so much water-soluble calcium salt, that the Ca: (Al + Zr) weight ratio is 1: 1-1: 28, preferably 1: 2-1: 25 is, and so much glycine, that the glycine to (Al + Zr) - weight ratio 2: 1 - 1: 20, preferably 1: 1 - 1: 10 ,. Further particularly preferred solid antiperspirant activated salt compositions, for example according to US 6245325 or US 6042816, contain 48-78% by weight (USP), preferably 66-75% by weight of an activated aluminum or aluminum zirconium salt and 1-16% by weight. %, preferably 4-13% by weight of molecularly bound water, furthermore as much water-soluble calcium salt, the Ca: (Al + Zr) weight ratio is 1: 1-1: 28, preferably 1: 2-1: 25, and as much hydroxyalkanoic acid that the hydroxyalkanoic acid becomes (Al + Zr) - weight ratio 2: 1 - 1: 20, preferably 1: 1 - 1: 10, is.

Preferred water-soluble calcium salts for the stabilization of the antiperspirant salts are selected from calcium chloride, calcium bromide, calcium nitrate, calcium citrate, calcium formate, calcium acetate, calcium gluconate, calcium ascorbate, calcium lactate, calcium glycinate, calcium carbonate, calcium sulfate, calcium hydroxide, and mixtures thereof.

Preferred amino acids for the stabilization of the antiperspirant salts are selected from glycine, alanine, leucine, isoleucine, β-alanine, valine, cysteine, serine, tryptophan, phenylalanine, methionine, β-amino-n-butanoic acid and γ-amino-n-butanoic acid and the salts thereof, each in the d-form, the I-form and the dl-form; Glycine is particularly preferred.

Preferred hydroxyalkanoic acids for the stabilization of the antiperspirant salts are selected from glycolic acid and lactic acid.

Further preferred activated aluminum salts are those of the general formula Al ₂ (OH) ₆ . _a Xa, wherein X is Cl, Br, I or N0 ₃ and "a" is a value of 0.3 to 5, preferably from 0.8 to 2.5 and particularly preferably 1 to 2, so that the molar ratio of Al X is 0.9: 1 to 2.1: 1, as disclosed, for example, in US 6074632. These salts generally associate some hydration water, typically 1 to 6 moles of water per mole of salt. Particularly preferred is aluminum chlorohydrate (ie, X is Cl in the aforementioned formula) and especially 5/6 basic aluminum chlorohydrate wherein "a" is 1 such that the molar ratio of aluminum to chlorine is 1.9: 1 to 2.1: 1 , Zirconium-free aluminum sesquichlorohydrates which are particularly preferred according to the invention have a molar metal-to-chloride ratio of 1.5: 1-1.8: 1.

Preferred activated aluminum-zirconium salts are those which are mixtures or complexes of the aluminum salts described above with zirconium salts of the formula ZrO (OH) ₂ - represent _Pb Y _b wherein Y is Cl, Br, I, N0 ₃ or S0 _4, b is a rational number from 0.8 to 2 and p is the valence of Y, as disclosed, for example, in US 6074632. The zirconium salts also typically associate some hydration water associatively, typically 1 to 7 moles of water per mole of salt. Preferably the zirconium salt is zirconyl hydroxychloride of the formula ZrO (OH) ₂ _ _b Cl _b wherein b is a rational number from 0.8 to 2, preferably 1, 0 to 1. 9 Preferred aluminum-zirconium salts have an Al: Zr molar ratio of 2 to 10 and a metal: (X + Y) ratio of 0.73 to 2.1, preferably 0.9 to 1.5. A particularly preferred salt is aluminum-zirconium chlorohydrate (ie, X and Y are Cl), which has an Al: Zr ratio of 2 to 10 and a molar MetalhCl ratio of 0.9 to 2.1. The term aluminum zirconium chlorohydrate includes the tri-, tetra-, penta- and octachlorohydrate forms.

Zirconium salts preferred according to the invention have the general formula ZrO (OH) ₂ - _a Cl _a ^.x H ₂ O where a = 1 .5-1 .87; x = 1-7, where a and x are rational numbers. These zirconium salts are disclosed, for example, in the Belgian specification BE 825146. Other preferred antiperspirant actives are disclosed in US 6663854 and US 20040009133.

The antiperspirant active ingredients are in dissolved form. The antiperspirant active ingredients can be used as nonaqueous solutions or as glycolic solubilisates.

Preferred aluminum zirconium salts have a molar metal-to-chloride ratio of 0.9-1.3, preferably 0.9-1.1, more preferably 0.9-1.0.

Preferred aluminum zirconium chlorohydrates generally have the empirical formula AlnZr (OH) _[ 3n ₊ 4-m (n + i _)] (Cl) [m (n + i)] where π = 2.0-10.0, preferably 3, 0 - 8.0, m = 0.77 - 1, 1 1 (corresponding to a molar metal (Al + Zr) to chloride ratio of 1.3 to 0.9), preferably m = 0.91 to 1 , 1 1 (corresponding to M: CI = 1, 1 - 0.9), and particularly preferably m = 1, 00 - 1, 1 1 (corresponding to M: CI = 1, 0 - 0, 9), furthermore very preferably m = 1, 02-1.11 (corresponding to M: CI = 0.98-0.9) and very preferably m = 1.04-1.1 (corresponding to M: CI = 0.96-0.9) ,

In general, some of the water of hydration is associatively bound to these salts, typically 1-6 moles of water per mole of salt, corresponding to 1-16% by weight, preferably 4-13% by weight of water of hydration.

Usually, the preferred aluminum zirconium chlorohydrates are associated with an amino acid to prevent polymerization of the zirconium species during manufacture. Preferred stabilizing amino acids are selected from glycine, alanine, leucine, isoleucine, β-alanine, cysteine, valine, serine, tryptophan, phenylalanine, methionine, β-amino-n-butanoic acid and γ-amino-n-butanoic acid and the salts thereof, each in the d-form, the I-form and the dl-form; Glycine is particularly preferred. The amino acid is contained in the salt in an amount of 1 to 3 moles, preferably 1 to 3 to 1.8 moles, per mole of zirconium.

Preferred antiperspirant salts are aluminum-zirconium tetrachlorohydrate (Al: Zr = 2-6, M: CI = 0.9-1.3), in particular salts having a molar metal-to-chloride ratio of 0.9-1.1, preferably 0 , 9 - 1, 0.

Also preferred according to the invention are aluminum zirconium chlorohydrate-glycine salts which are stabilized with betaine ((CH ₃ ) ₃ N ⁺ -CH ₂ -COO ^- ). Particularly preferred corresponding compounds have a total molar (betaine + glycine) / Zr ratio of (0.1-1.0): 1, preferably (0.7-1.5): 1, and a betaine molar ratio Glycine of at least 0.001: 1 on. Corresponding compounds are disclosed, for example, in US Pat. No. 7,105,691.

In a particularly preferred embodiment according to the invention, the particularly effective antiperspirant salt comprises a so-called "activated" salt, in particular one with a high HPLC peak 5-aluminum content, in particular with a peak 5 surface of at least 33%, particularly preferred at least 45%, based on the total area under peaks 2-5, as measured by HPLC of a 10% by weight aqueous solution of the active substance under conditions in which the aluminum species are resolved into at least 4 consecutive peaks (with peaks 2 - 5). 5 designated). Preferred aluminum zirconium salts having a high HPLC peak 5-aluminum content (also referred to as "E ⁵ AZCH") are disclosed, for example, in US 6436381 and US 6649152.

Furthermore, preference is given to those activated "E ⁵ AZCH" salts whose HPLC peak has a 4-to-peak 3 area ratio of at least 0.4, preferably at least 0.7, particularly preferably at least 0.9.

Further particularly preferred antiperspirant active ingredients are those aluminum zirconium salts having a high HPLC peak 5-aluminum content, which are additionally stabilized with a water-soluble strontium salt and / or with a water-soluble calcium salt. Corresponding salts are disclosed, for example, in US Pat. No. 6,923,952.

Particularly preferred compositions according to the invention contain at least one antiperspirant aluminum or aluminum-zirconium compound in a total amount of 5 to 35% by weight, preferably 8 to 30% by weight, more preferably 10 to 25% by weight and most preferably 16 - 20 wt .-%, each based on the total weight of the crystal water and ligand-free active substance (USP) in the overall composition.

Further particularly preferred compositions according to the invention comprise at least one antiperspirant aluminum compound in a total amount of 5 to 35% by weight, preferably 8 to 30% by weight, more preferably 10 to 25% by weight and most preferably 16 to 20% by weight. -%, in each case based on the total weight of the crystal water and ligand-free active substance (USP) in the total composition.

Further particularly preferred compositions according to the invention comprise at least one antiperspirant aluminum-zirconium compound in a total amount of 5 to 35% by weight, preferably 8 to 30% by weight, more preferably 10 to 25% by weight and most preferably 16 to 20 % By weight, based in each case on the total weight of the water of crystallization and ligand-free active substance (USP) in the total composition.

Preferred compositions according to the invention comprise at least one oil-in-water emulsifier having an HLB value greater than 7 to 20, which is particularly preferably selected from nonionic oil-in-water emulsifiers having an HLB value of greater than 7 to 20.

These are emulsifiers which are generally known to the person skilled in the art, as are listed, for example, in Kirk-Othmer, "Encyclopedia of Chemical Technology", 3rd ed., 1979, Volume 8, pages 913-916. For ethoxylated products, the HLB value is calculated according to the formula HLB = (100-L): 5, where L is the weight fraction of the lipophilic groups, that is the fatty alkyl or fatty acyl groups, in the ethylene oxide adducts, expressed in weight percent.

Further preferred antiperspirant compositions according to the invention are characterized in that at least one nonionic emulsifier having an HLB value in the range from 12 to 18 is contained. Preferred antiperspirant compositions according to the invention are characterized in that the nonionic oil-in-water emulsifiers having an HLB value of greater than 7 to 20 are selected from ethoxylated C ₈ -C ₂ alkanols having an average of 10 to 100 moles of ethylene oxide per mole of ethoxylated C ₈ -C ₂ 4 carboxylic acids with an average of 10 to 100 moles of ethylene oxide per mole, with an average of 20 to 100 moles of ethylene oxide per mole of ethoxylated sorbitan monoesters of linear saturated and unsaturated C _K -C ₃₀ -carboxylic acids which may be hydroxylated, in particular those of myristic acid, palmitic acid, stearic acid or of mixtures of these fatty acids, silicone copolyols with ethylene oxide units or with ethylene oxide and propylene oxide Units, alkyl mono- and oligoglycosides having 8 to 22 carbon atoms in the alkyl radical and their ethoxylated analogs, ethoxylated sterols, partial esters of polyglycerols with n = 2 to 10 glycerol units and having 1 to 4 saturated or unsaturated, linear or branched, optionally hydroxylated C ₈ - C ₃₀ fatty acid residues esterified, provided they have an HLB value of greater 7 to 20, and mixtures of the aforementioned substances.

The ethoxylated C ₈ -C ₂ alkanols have the formula R 0 (CH ₂ CH ₂ 0) _n H, where R is a linear or branched alkyl and / or alkenyl radical having 8-24 carbon atoms and n, the average number of ethylene oxide units per molecule, for numbers from 10 to 100, preferably 10 to 30, moles of ethylene oxide to 1 mole of caprylic alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmitoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol , Arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and brassidyl alcohol and their technical mixtures. Adducts of 10 to 100 moles of ethylene oxide onto technical fatty alcohols containing 12 to 18 carbon atoms, such as, for example, coconut, palm, palm kernel or tallow fatty alcohol, are also suitable.

The ethoxylated C ₈ -C ₂₄ carboxylic acids have the formula R 0 (CH ₂ CH ₂ O) _n H, where R 0 is a linear or branched saturated or unsaturated acyl radical having 8-24 carbon atoms and n, the average number of ethylene oxide Units per molecule, for numbers from 10 to 100, preferably 10 to 30, mol of ethylene oxide to 1 mol of caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, cetylic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid , Petroselic, arachidic, gadoleic, behenic, erucic and brassidic acids and their technical mixtures. Adducts of 10 to 100 moles of ethylene oxide with technical fatty acids containing 12 to 18 carbon atoms, such as coconut, palm, palm kernel or tallow fatty acid, are also suitable. Particularly preferred are PEG-50 monostearate, PEG-100 monostearate, PEG-50 monooleate, PEG-100 monooleate, PEG-50 monolaurate and PEG-100 monolaurate.

Particular preference is given to using the C ₂ -C- | ₈ alkanols or the Ci ₂ -C | _8- carboxylic acids with in each case 10 to 30 units of ethylene oxide per molecule and mixtures of these substances, in particular Ceteth-10, Ceteth-12, Ceteth-20, Ceteth-30, Steareth-10, Steareth-12, Steareth-20, Steareth-21, Steareth-30, ceteareth-10, ceteareth-12, ceteareth-20, ceteareth-30, laureth-12 and beheneth-20. Preferred ones having on average 20-100 moles of ethylene oxide per mole of ethoxylated sorbitan monoesters of linear saturated and unsaturated C _K -C ₃₀ carboxylic acids which may be hydroxylated are selected from Polysorbate-20, Polysorbate-40, Polysorbate-60 and Polysorbate-80.

Furthermore, C ₈ are preferably - C ₂ 2-alkyl mono- and oligoglycosides employed. C ₈ -C ₂ 2-alkyl mono- and oligoglycosides are known, commercially available surfactants and emulsifiers. They are prepared in particular by reacting glucose or oligosaccharides with primary alcohols having 8-22 carbon atoms. With regard to the glycoside radical, monoglycosides in which a cyclic sugar radical is glycosidically linked to the fatty alcohol and oligomeric glycosides with a degree of oligomerization of up to about 8, preferably 1-2, are suitable. The degree of oligomerization is a statistical mean, which is based on a homolog distribution typical for such technical products. Products that are available under the trademark plantation care ^®, a glucosidically bonded C ₈ -C ₆ alkyl group included in a Oligogluco- sidrest whose average degree of oligomerization with 1-2, particularly 1, 2 - 1, 4 is located. Particularly preferred C ₈ -C ₂ 2-alkyl mono- and oligoglycosides are selected from octyl glucoside, decyl glucoside, lauryl glucoside, palmityl glucoside, isostearyl glucoside, stearyl glucoside, arachidyl glucoside and behenyl glucoside and mixtures thereof. The glucamine-derived acylglucamides are also suitable as nonionic oil-in-water emulsifiers.

Ethoxylated sterols, in particular ethoxylated soy sterols, are also suitable oil-in-water emulsifiers according to the invention. The degree of ethoxylation must be greater than 5, preferably at least 10, in order to have an HLB value greater than 7. Suitable commercial products are, for. PEG-10 Soy Sterol, PEG-16 Soy Sterol and PEG-25 Soy Sterol.

Furthermore, partial esters of polyglycerols having 2 to 10 glycerol units and having 1 to 4 saturated or unsaturated, linear or branched, optionally hydroxylated C ₈ -C ₃₀ fatty acid residues are preferably esterified, if they have an HLB value of greater than 7 to 20. Particularly preferred Diglycerinmonocaprylat, Diglycerinmonocaprat, diglycerol, tri- are glycerol monocaprylate, Triglycerinmonocaprat, triglycerol, Tetraglycerinmonocaprylat, Tetraglycerinmonocaprat, Tetraglycerinmonolaurat, Pentaglycerinmonocaprylat, Pentaglycerinmono- caprate, Pentaglycerinmonolaurat, Hexaglycerinmonocaprylat, Hexaglycerinmonocaprat, monolaurate Hexaglycerin-, Hexaglycerinmonomyristat, Hexaglycerinmonostearat, Decaglycerinmonocaprylat, glycerol monocaprate deca-, decaglyceryl monolaurate , decaglyceryl monomyristate, Decaglycerinmonoisostea- rat, decaglycerol monostearate, Decaglycerinmonooleat, Decaglycerinmonohydroxystearat, Decaglyce- rindicaprylat, stearate Decaglycerindicaprat, Decaglycerindilaurat, Decaglycerindimyristat, Decaglycerindiiso-, Decaglycerindistearat, Decaglycerindioleat, Decaglycerindihydroxystearat, Decaglycerintri- caprylate, Decaglycerintricaprat, Decaglycerintrilaurat, Decaglycerintrimyristat, Decaglycerintriisostearat, Decaglycerintriste arate, decaglycerol trioleate and decaglycerol trihydroxystearate. Particularly preferred antiperspirant compositions according to the invention comprise at least one oil-in-water emulsifier having an HLB value of greater than 7 to 20 in a total amount of 0.5-5% by weight, preferably 0.8-4% by weight. , more preferably 1, 2 - 3 wt .-%, and most preferably 1, 5 - 2 wt .-%, each based on the total composition.

Further antiperspirant compositions which are particularly preferred according to the invention comprise at least one nonionic oil-in-water emulsifier having an HLB value in the range of 12-18 in a total amount of 0.5-5% by weight, preferably 0.8-4% by weight .-%, more preferably 1, 2 - 3 wt .-%, and most preferably 1, 5 - 2 wt .-%, each based on the total composition.

Contain further according to the invention particularly preferred antiperspirant compositions contain at least one non-ionic oil-in-water emulsifier having a HLB value in the range of 12 - 18, which is selected from linear saturated and unsaturated C _K - C ₂ 4-alkanols having from 7 - 40 ethylene oxide units are etherified per molecule, in a total amount of 0.5 to 5 wt .-%, preferably 0.8 to 4 wt .-%, particularly preferably 1, 2 - 3 wt .-%, and extraordinarily preferably 1, 5-2% by weight, in each case based on the total composition. The aforementioned oil-in-water emulsifiers are particularly preferably selected from steareth, ceteth, myristeth, laureth, trideceth, arachideth and beheneth with in each case 7 to 40 ethylene oxide units per molecule, in particular steareth-10, steareth-20, steareth-21 , Steareth-30, Steareth-40, Ceteth-10, Ceteth-20, Ceteth-21, Ceteth-30, Ceteth-40, Laureth-10, Laureth-20, Laureth-30, Trideceth-10, Trideceth-20 and trideceth-30, as well as mixtures thereof.

Other preferred antiperspirant compositions of this invention contain at least one nonionic oil-in-water emulsifier having an HLB in the range of 12-18 selected from steareth-10, steareth-20, steareth-21, steareth-30, steareth -40, ceteth-10, ceteth-20, ceteth-21, ceteth-30, ceteth-40, laureth-10, laureth-20, laureth-30, trideceth-10, trideceth-20 and trideceth-30 and mixtures thereof, in a total amount of 0.5-5% by weight, preferably 0.8-4% by weight, more preferably 1.2-3% by weight, and most preferably 1.5-2% by weight, in each case based on the total composition.

Further antiperspirant compositions preferred according to the invention comprise at least one cosmetic oil and at least one oil-in-water emulsifier having an HLB value of greater than 7 to 20 and are present as an oil-in-water emulsion. For the purposes of the present application, the term emulsion does not include microemulsions.

Particularly preferred antiperspirant compositions according to the invention are in the form of an oil-in-water emulsion and comprise at least one oil-in-water emulsifier having an HLB value of greater than 7 to 20 in a total amount of 0.5-5% by weight, preferably 0.8 to 4 wt .-%, particularly preferably 1, 2 to 3 wt .-%, and most preferably 1, 5 to 2 wt .-%, each based on the total composition. Further antiperspirant compositions which are particularly preferred according to the invention are in the form of an oil-in-water emulsion and comprise at least one nonionic oil-in-water emulsifier having an HLB value in the range of 12-18 in a total amount of 0.5-5% by weight. %, preferably 0.8 to 4 wt .-%, particularly preferably 1, 2 to 3 wt .-%, and most preferably 1, 5 - 2 wt .-%, each based on the total composition.

Further antiperspirant compositions particularly preferred according to the invention are in the form of an oil-in-water emulsion and comprise at least one nonionic oil-in-water emulsifier having an HLB value in the range from 12 to 18, selected from linear saturated and unsaturated C12-C ₂ 4-alkanols, which are etherified with 7 to 40 ethylene oxide units per molecule, in a total amount of 0.5 to 5 wt .-%, preferably 0.8 to 4 wt .-%, particularly preferably 1, 2-3 Wt .-%, and most preferably 1, 5 - 2 wt .-%, each based on the total composition. The aforementioned oil-in-water emulsifiers are particularly preferably selected from steareth, ceteth, myristeth, laureth, trideceth, arachideth and beheneth, each having 7 to 40 ethylene oxide units per molecule, in particular steareth-10, steareth-20, steareth-21 , Steareth-30, steareth-40, ceteth-10, ceteth-20, ceteth-21, ceteth-30, ceteth-40, laureth-10, laureth-20, laureth-30, trideceth-10, trideceth-20 and trideceth-30, as well as mixtures thereof.

Further preferred antiperspirant compositions according to the invention are in the form of an oil-in-water emulsion and contain at least one nonionic oil-in-water emulsifier having an HLB value in the range from 12 to 18, which is selected from steareth-10, steareth- 20, Steareth 21, Steareth 30, Steareth 40, Ceteth 10, Ceteth 20, Ceteth 21, Ceteth 30, Ceteth 40, Laureth 10, Laureth 20, Laureth 30, Trideceth 10, Trideceth-20 and trideceth-30 and mixtures thereof, in a total amount of 0.5 to 5 wt .-%, preferably 0.8 to 4 wt .-%, particularly preferably 1, 2 - 3 wt .-%, and extraordinarily preferably 1, 5-2 wt .-%, each based on the total composition.

Water-in-oil emulsifiers

Further antiperspirant compositions preferred according to the invention contain at least one water-in-oil emulsifier, preferably at least one nonionic water-in-oil emulsifier, each having an HLB value greater than 1.0 and less than or equal to 7.0, preferably in the range 3-6. Some of these water-in-oil emulsifiers are listed, for example, in Kirk-Othmer, "Encyclopedia of Chemical Technology" 3rd Ed., 1979, Vol. 8, page 913. For ethoxylated adducts, the HLB value, as already mentioned, can also be calculated.

Preferred water-in-oil emulsifiers are:

linear or branched, saturated or unsaturated C | ₂ - C ₃₀ alkanols, each having 1 - etherified 4 ethylene oxide units per molecule, which are exceptionally preferably from steareth, ceteth, Myristeth, Laureth, Trideceth, Arachideth and Beheneth each having 1 - 4 ethylene oxide units per molecule, especially steareth-2, steareth-3, steareth-4, ceteth-2, ceteth-3, ceteth-4, Myristeth-2, myristeth-3, myristeth-4, laureth-2, laureth-3, laureth-4, trideceth-2, trideceth-3 and trideceth-4, and mixtures thereof;

linear saturated alkanols with 12-30 carbon atoms, in particular with 16-22 carbon atoms, in particular cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol and lanolin alcohol or mixtures of these alcohols, as obtainable in the industrial hydrogenation of vegetable and animal fatty acids;

Esters and in particular partial esters of a polyol having 2 to 6 C atoms and linear saturated and unsaturated fatty acids having 12 to 30, in particular 14 to 22, C atoms which may be hydroxylated. Such esters or partial esters are, for. For example, the mono- and diesters of glycerol or ethylene glycol or the monoesters of propylene glycol with linear saturated and unsaturated C _K -C ₃₀ carboxylic acids which may be hydroxylated, especially those with palmitic and stearic acid, the sorbitan mono-, di - or triesters of linear saturated and unsaturated C _K - C ₃₀ - carboxylic acids which may be hydroxylated, in particular those of myristic acid, palmitic acid, stearic acid or mixtures of these fatty acids, the pentaerythrityl mono-, di-, tri- and tetraesters and the methyl glucose mono- and diesters of linear, saturated and unsaturated C ₁₂ -C ₃₀ -carboxylic acids, which may be hydroxylated, of which the mono-, di-, tri- and tetraesters of pentaerythritol with linear saturated fatty acids are particularly preferred. 30, in particular 14-22 carbon atoms, which may be hydroxylated, and mixtures thereof. Particularly preferred according to the invention are the mono- and diesters. C ₂ -C ₃₀ fatty acid radicals preferred according to the invention are selected from lauric acid, myristic acid, palmitic acid, stearic acid, arachic acid and behenic acid radicals; particularly preferred is the stearic acid residue. Nonionic water-in-oil emulsifiers particularly preferred according to the invention having an HLB value greater than 1.0, and less than or equal to 7.0 are selected from glyceryl monostearate, glyceryl distearate, glyceryl monopalmitate, glyceryl dipalmitate and mixtures thereof;

Sterols, ie steroids which carry a hydroxyl group at the C3 atom of the steroid skeleton and both from animal tissue (zoosterols, eg cholesterol, lanosterol) as well as from plants (phytosterols, eg ergosterol, stigmasterol, sitosterol) and from fungi and yeasts (mycosterols) which may be low ethoxylated (1-5 EO);

Alkanols and carboxylic acids each having 8-24 C atoms, in particular having 16-22 C atoms, in the alkyl group and 1-4 ethylene oxide units per molecule which have an HLB value of greater than 1.0, and less than or equal to 7.0 exhibit,

Glycerol monoethers of saturated and / or unsaturated, branched and / or unbranched alcohols having a chain length of 8-30, in particular 12-18, carbon atoms,

Partial ester of polyglycerols having n = 2 to 10 glycerol units and esterified with 1 to 5 saturated or unsaturated, linear or branched, optionally hydroxylated C ₈ - C ₃₀ fatty acid residues, provided that they have an HLB value greater than 1, 0 to less than or equal to 7 exhibit, and mixtures of the aforementioned substances.

Particularly preferred is the at least one water-in-oil emulsifier having an HLB value greater than 1, 0 and less than or equal to 7.0, preferably in the range of 3-6, selected from linear or branched, saturated or unsaturated C _K - C ₃₀ alkanols each etherified with 1 to 4 ethylene oxide units per molecule, which are extremely preferred from steareth, ceteth, myristeth, laureth, trideceth, arachideth and beheneth having in each case 1 to 4 ethylene oxide units per molecule, in particular steareth -2, steareth-3, steareth-4, ceteth-2, ceteth-3, ceteth-4, myristeth-2, myristeth-3, myristeth-4, laureth-2, laureth-3, laureth-4, trideceth-2 , Trideceth-3 and trideceth-4, as well as mixtures thereof. According to the invention, it may be preferable to use only a single water-in-oil emulsifier. In another preferred embodiment, the compositions according to the invention comprise mixtures, in particular technical mixtures, of at least two water-in-oil emulsifiers. Antiperspirant compositions preferred according to the invention contain at least one water-in-oil emulsifier having an HLB value of greater than 1.0, and less than or equal to 7.0, preferably in the range of 3-6, in a total amount of 1.8-3 wt .-%, preferably 2 - 2.8 wt .-% and particularly preferably 2.4 - 2.6 wt .-%, each based on the total weight of the composition according to the invention.

Further preferred antiperspirant compositions according to the invention comprise at least one nonionic water-in-oil emulsifier having an HLB value in the range from 3 to 6, selected from steareth-2, steareth-3, steareth-4, ceteth-2, ceteth-3 , Ceteth-4, myristeth-2, myristeth-3, myristeth-4, laureth-2, laureth-3, laureth-4, trideceth-2, trideceth-3 and trideceth-4 and mixtures thereof, in a total amount of 1, 8-3% by weight, preferably 2-8.8% by weight and more preferably 2.4-2.6% by weight, in each case based on the total weight of the composition according to the invention.

Further preferred antiperspirant compositions according to the invention are in the form of an oil-in-water emulsion and contain at least one water-in-oil emulsifier having an HLB value of greater than 1.0, and less than or equal to 7.0, preferably in the range of 3. 6, in a total amount of 1, 8 - 3 wt .-%, preferably 2 - 2.8 wt .-% and particularly preferably 2.4 - 2.6 wt .-%, each based on the total weight of the composition according to the invention.

Further preferred antiperspirant compositions according to the invention are in the form of an oil-in-water emulsion and comprise at least one nonionic water-in-oil emulsifier having an HLB value in the range from 3 to 6, selected from steareth-2, steareth-3, Steareth-4, ceteth-2, ceteth-3, ceteth-4, myristeth-2, myristeth-3, myristeth-4, laureth-2, laureth-3, laureth-4, trideceth-2, trideceth-3 and trideceth- 4 and mixtures thereof, in a total amount of 1, 8 - 3 wt .-%, preferably 2 - 2.8 wt .-% and particularly preferably 2.4 - 2.6 wt .-%, each based on the total weight of composition according to the invention.

oils Antiperspirant compositions preferred according to the invention are in the form of an oil-in-water emulsion and comprise at least one cosmetic oil, preferably in a total amount of 0.1-15% by weight, particularly preferably 0.3-10% by weight. , most preferably 0.5-6 wt .-%, each based on the weight of the total Antitranspirant composition according to the invention.

In the case of cosmetic oils, a distinction is made between volatile and non-volatile oils. Non-volatile oils are understood as meaning oils having a vapor pressure of less than 2.66 Pa (0.02 mm Hg) at 20 ° C and an ambient pressure of 1013 hPa. Volatile oils are understood to mean those oils which, at 20 ° C. and an ambient pressure of 1013 hPa, have a vapor pressure of 2.66 Pa-40,000 Pa (0.02 mm-300 mm Hg), preferably 13-12,000 Pa (0.1-4. 90 mm Hg), more preferably 15-3000 Pa, most preferably 30-500 Pa.

Non-volatile non-silicone oils which are particularly preferred according to the invention are selected from the adducts of at least 6 ethylene oxide and / or propylene oxide units with monovalent or polyvalent C ₃ . ₂ 2-alkanols such as butanol, butanediol, myristyl alcohol and stearyl alcohol, eg. PPG-13 butyl ether, PPG-14 butyl ether, PPG-9 butyl ether, PPG-10-butanediol, PPG-15 stearyl ether and mixtures thereof.

Particularly preferred compositions according to the invention comprise at least one cosmetic oil selected from PPG-13-butyl ether, PPG-14-butyl ether, PPG-9-butyl ether, PPG-10-butanediol, PPG-15 stearyl ether and mixtures thereof, in a total amount from 0.1 to 15% by weight, more preferably from 0.3 to 10% by weight, most preferably from 0.5 to 6% by weight, based on the weight of the total antiperspirant composition of the invention. Extremely preferred compositions according to the invention contain from 0.1 to 15% by weight, more preferably from 0.3 to 10% by weight, most preferably from 0.5 to 6% by weight of PPG-15 stearyl ether, all by weight the entire antiperspirant composition of the invention.

Further non-volatile non-silicone oils which are particularly preferred according to the invention are esters of linear or branched saturated or unsaturated fatty alcohols having 2 to 30 carbon atoms with linear or branched saturated or unsaturated fatty acids having 2 to 30 carbon atoms which may be hydroxylated. Preference is given to esters of linear or branched saturated fatty alcohols having 2 to 5 carbon atoms with linear or branched saturated or unsaturated fatty acids having 10 to 18 carbon atoms which may be hydroxylated. Preferred examples thereof are isopropyl palmitate, isopropyl stearate, isopropyl myristate, 2-hexyldecyl stearate, 2-hexyldecyl laurate, isononyl isononanoate, 2-ethylhexyl palmitate and 2-ethylhexyl stearate. Also preferred are isooctyl stearate, isononyl stearate, isocetyl stearate, isononyl isononanoate, isotridecyl isononanoate, cetearyl isononanoate, 2-ethylhexyl laurate, 2-ethylhexyl isostearate, 2-ethylhexyl cocoate, 2-octyl dodecyl palmitate, butyloctanoic acid 2-butyl octanoate, diisotridecyl acetate, n-hexyl laurate, n-decyl oleate, oleyl oleate, oleyl erucate , erucyl, C ₂ -C ₅ alkyl lactate and di-Ci2-Ci ₃ -Alkylmalat and the benzoic acid esters of linear or branched C. ₈ ₂ 2-alkanols. Particularly preferred are benzoic acid-Ci ₂ -Ci ₅ -alkyl esters, for. B. available as a commercial product Finsolv TN (Ci2-Ci ₅ -alkyl benzoate), and isostearyl benzoate, z. As available as Finsolv ^® SB, 2-ethyl hexylbenzoate such. B. available as Finsolv ^® EB, and benzoic acid 2-octyldodecylester, z. As available as Finsolv ^® BOD. Another particularly preferred ester oil is triethyl citrate.

Further non-volatile non-silicone oils which are preferred according to the invention are selected from branched saturated or unsaturated fatty alcohols having 6 to 30 carbon atoms. These alcohols are also often referred to as Guerbet alcohols, as they are obtainable by the Guerbet reaction. Preferred alcohol oils are 2-hexyldecanol, 2-octyldodecanol and 2-ethylhexyl alcohol. Also preferred is isostearyl alcohol. Other preferred nonvolatile oils are selected from mixtures of Guerbet alcohols and Guerbet alcohol esters, e.g. For example, 2-hexyldecanol and 2-hexyldecyl laurate.

The term "triglyceride" used hereinafter means "glycerol triester". Further preferred nonvolatile oils according to the invention are selected from the triglycerides of linear or branched, saturated or unsaturated, optionally hydroxylated C ₈ . ₃₀ fatty acids, provided that they are liquid under normal conditions. Particularly suitable may be the use of natural oils, eg soybean oil, cottonseed oil, sunflower oil, palm oil, palm kernel oil, linseed oil, almond oil, castor oil, corn oil, rapeseed oil, olive oil, sesame oil, thistle oil, wheat germ oil, peach kernel oil and the liquid portions of coconut oil and the like. Particularly preferred are synthetic triglyceride oils, in particular Capric / Caprylic triglycerides, z. As the commercial products Myritol ^® 318 or Myritol ^® 331 (BASF) with unbranched fatty acid residues and glyceryl triisostearin and glyceryl tri (2-ethylhexanoate) with branched fatty acid residues. Such triglyceride oils preferably account for less than 50% by weight of the total weight of all cosmetic oils in the composition of the invention.

Further according to the invention particularly preferred non-volatile non-silicone oils are selected from the dicarboxylic acid esters of linear or branched C ₂ -C ₀ -alkanols, in particular diisopropyl propyladipat, di-n-butyl adipate, di- (2-ethylhexyl) adipate, dioctyl adipate, diethyl / di- n-butyl / dioctyl sebacate, diisopropyl sebacate, dioctyl malate, dioctyl maleate, dicaprylyl maleate, diisooctyl succinate, di-2-ethylhexyl succinate and di (2-hexyldecyl) succinate.

Further inventively particularly preferred non-volatile non-silicone oils are selected from the addition products of 1 to 5 propylene oxide units of mono- or polyhydric C ₈ . ₂ 2-alkanols such as octanol, decanol, decanediol, lauryl alcohol, myristyl alcohol and stearyl alcohol, preferably PPG-2-myristyl ether and PPG-3-myristyl ether.

Further according to the invention particularly preferred non-volatile non-silicone oils are selected from the symmetrical, asymmetrical or cyclic esters of carbonic acid with C ₆ -C ₂ o-alcohols, z. Di-n-caprylyl carbonate or di- (2-ethylhexyl) carbonate. Carbonic acid esters with CC ₅ -alcohols, e.g. As glycerol carbonate or propylene carbonate, however, are not suitable as a cosmetic oil compounds. Other oils which may be preferred according to the invention are selected from the esters of dimers of unsaturated C 1 C ₂ -C ₂₂ fatty acids (dimer fatty acids) with monovalent linear, branched or cyclic C ₂ -C ₈ -alkanols or with polyvalent linear or branched C ₂ -C ₆ -alkanols. The total weight of dimer fatty acid esters is particularly preferably 0.5-10% by weight, preferably 1-5% by weight, in each case based on the total composition.

Volatile cosmetic oils are usually selected from cyclic silicone oils having the INCI name Cyclomethicone. The INCI name cyclomethicones is understood in particular to mean cyclotrisiloxane (hexamethylcyclotrisiloxane), cyclotetrasiloxane (octamethylcyclotetrasiloxane), cyclopentasiloxane (decamethylcyclopentasiloxane) and cyclohexasiloxane (dodecamethylcyclohexasiloxane). These oils have a vapor pressure of about 13-15 Pa at 20 ° C.

Cyclomethicones are known in the art as well-suited oils for cosmetic products, in particular for antiperspirant and deodorant products. Due to their persistence in the environment, it may be preferred according to the invention to dispense with the use of cyclomethicones. In a particularly preferred embodiment, the compositions according to the invention contain from 0 to less than 1% by weight of cyclomethicones, based on the weight of the composition.

A preferred cyclomethicone substitute is a mixture of C13-C16 isoparaffins, C12-C14 isoparaffins and C13-C15 alkanes whose viscosity is in the range of 2 to 6 mPas at 25 ° C and which has a vapor pressure of 20 ° C in the range of 100 up to 150 Pa. Such a mixture is z. B. under the name SiClone SR-5 from Presperse Inc. available.

Further preferred volatile silicone oils are selected from volatile linear silicone oils, in particular volatile linear silicone oils having 2 to 10 siloxane units, such as hexamethyldisiloxane (L ₂ ), octamethyltrisiloxane (L ₃ ), decamethyltetrasiloxane (L ₄ ), as described, for example, in US Pat. B. in the commercial products DC 2-1184, Dow Corning ^® 200 (0.65 cSt), and Dow Corning ^® 200 (1, 5 cSt) from Dow Corning are contained, and low molecular weight phenyl trimethicone having a vapor pressure at 20 ° C of about 2000 Pa as available, for example, from GE Bayer Silicones / Momentive under the name Baysilone Fluid PD 5.

Preferred antiperspirant compositions of the present invention contain at least one volatile non-silicone oil because of the drier skin feel and faster drug release. Preferred volatile non-silicone oils are selected from C ₈ -C ₆ -isoparaffins, in particular from isononane, isodecane, isoundecane, isododecane, isotridecane, isotetradecane, isopentadecane, and isohexadecane, and mixtures thereof. Preference is given to Ci ₀ -Ci ₃ isoparaffin mixtures, in particular those having a vapor pressure at 20 ° C of 10 - 400 Pa, preferably 13 - 100 Pa.

Further preferred antiperspirant compositions according to the invention in the form of oil-in-water emulsions are characterized in that the at least one propylene glycol monoester of branched saturated C ₆ -C ₃₀ -alkanecarboxylic acids is selected from propylene glycol monoisostearic acid. rat, propylene glycol monoisopalmitate, propylene glycol monoiso-ashenate, propylene glycol monoisoarachinate, propylene glycol monoiso- myristate, propylene glycol monoisocaprate, propylene glycol monoisocaprinate and propylene glycol monoisocaprylate, and mixtures thereof. Further preferred antiperspirant compositions according to the invention in the form of oil-in-water emulsions are characterized in that the at least one branched saturated C ₁₀ -C ₃₀ -alkanol is selected from isostearyl alcohol, isocetyl alcohol, isomyristyl alcohol, isotridecyl alcohol, isoarachidyl alcohol, Isobehenyl alcohol, iso-capryl alcohol, isocaprinyl alcohol, isocaprylyl alcohol, and mixtures thereof.

Further preferred antiperspirant compositions according to the invention in the form of oil-in-water emulsions are characterized in that at least one nonionic emulsifier having an HLB value in the range of 3 to 6 and at least one nonionic emulsifier having an HLB value in the range of 12 - 18 are included.

Further inventively preferred antiperspirant compositions in the form of oil-in-water emulsions are characterized in that at least one nonionic emulsifier having an HLB value in the range of 3-6 in a total amount of 1, 8 to 3 wt .-% and at least one nonionic emulsifier having an HLB value in the range of 12 to 18 in a total amount of 1 to 2 wt .-%, wherein the amounts are in each case based on the total weight of the composition according to the invention.

Further preferred antiperspirant compositions according to the invention in the form of oil-in-water emulsions are characterized in that they have a nonionic emulsifier with an HLB value in the range from 3 to 6 steareth-2 and at the same time as a nonionic emulsifier with an HLB value in the range from 12 to 18 steareth-21 is included.

Further preferred antiperspirant compositions according to the invention in the form of oil-in-water emulsions are characterized in that steareth-2, steareth-21 and PPG-15 stearyl ether are present.

Further inventively preferred antiperspirant compositions contain a total of at most 3 wt .-%, preferably at most 1 wt .-% and particularly preferably 0 wt .-%, each based on the total weight of the composition according to the invention, of monohydric Ci - C ₃ alkanols, such as Ethanol or isopropanol.

additives

In addition to the aforementioned ingredients, the compositions of the invention may contain other additives and adjuvants, for example, improve their shelf life, such as preservatives, eg. Phenoxyethanol, methylparaben or propylparaben, antioxidants, e.g. As Tetradi- butyl pentaerythrityl Hydroxyhydrocinnamate, Lipochroman-6, tocopherol, tocopheryl acetate or ascorbic acid and derivatives thereof, vitamins and their derivatives, such as tocopherol, tocopheryl acetate, ascorbic acid, panthenol or pantolactone, perfumes, essential oils, menthol and menthol derivatives, which have a skin-cooling effect show skin care soothing agents such as Bisabolol and Allantoin, agents that delay hair growth, eg. Eflornithine or glycyrrhizin and its derivatives, moisturizers and humectants, such as 1,2-propylene glycol, glycerol, 2-methyl-1,3-propanediol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, Pentylene glycols such as 1, 2-pentanediol and 1, 5-pentanediol, hexanediols such as 1, 2-hexanediol and 1, 6-hexanediol, hexane triols such as 1, 2,6-hexanetriol, 1, 2-octanediol, 1, 8-octanediol , Dipropylene glycol, tripropylene glycol, diglycerol, triglycerol, erythritol, sorbitol, cis-1,4-dimethylolcyclohexane, trans-1,4-dimethylolcyclohexane, any isomeric mixtures of cis- and trans-1,4-dimethylolcyclohexane, urea, N, N 'Bis (2-hydroxyethyl) urea, sodium pyrrolidone carboxylate, plant extracts, e.g. As aloe vera extract, natural fats and oils such as jojoba oil, evening primrose oil or linseed oil, saturated and unsaturated fatty acids such as stearic acid, oleic acid, linoleic acid, linolenic acid or gamma-linolenic acid, squalane, squalene, deodorant agents such as silver salts, colloidal silver , Zeolites, 2-benzylheptan-1-ol, anisalcohol, mixtures of 2-benzylheptan-1-ol and phenoxyethanol, 3- (2-ethylhexyloxy) -1, 2-propanediol or tropolone, and mixtures thereof

Substances.

Another object of the present application is the use of a combination of dehydroxanthan gum and at least one nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof, for reducing the residue and / or for improving the viscosity stability of an antiperspirant composition for roll-on application, which contains water and at least one antiperspirant aluminum or aluminum-zirconium compound and optionally has the characterizing feature according to at least one of claims 2 to 14.

The following embodiments are intended to illustrate the subject matter of the present invention without being limited thereto.

Recipe A Recipe El

% By weight

Steareth-21 1 8 1, 48

Steareth-2 2, 38 2, 38

PPG-15 stearyl ether 0, 50 0, 50

Water, demineralized 54, 09; 54, 09

Aluminum chlorohydr ^; 40, 00 40, 00

Phenoxyethanol 0, 90: 0, 90

Amaze XT 0.40 i

Tylose H 100000 YP2 0, 25? 0, 65

i Sodiurn hydroxide pearls ο, ο ί. ^" ööi

Tylose H 100000 YP2 = hydroxyethylcellulose (ex Shin-Etsu)

Amaze XT = dehydroxanthan gum (ex AkzoNobel)

Formulations A (according to the invention), B (not according to the invention) and C (not according to the invention) are antiperspirant oil-in-water emulsions (not microemulsions).

Figure 1 shows the course of the viscosity of the emulsions A and B, which were stored at a room temperature of 45 ° C, over a period of 8 weeks. After this time, the non-inventive emulsion B was separated in oil and water phase.

Figure 2 shows the residues of each 0.3 grams of the emulsions A (according to the invention) and C (not according to the invention), which were applied to black cardboard and dried for 24 hours at 20 ° C. Formulation A according to the invention left significantly less visible residue than the comparative formulation C.

Some preferred compositions of the present invention can be found in the following Tables (all amounts are in weight percent, based on the total weight of the composition):

1 2 3 4

Water 40 - 90 50 - 85 60 - 80 65 - 75

Total amount of at least one weld5 - 35 8 - 30 10 - 25 16 - 20

inhibiting aluminum or aluminum-zirconium compound

Dehydroxanthan Gum 0.05 - 1 0.1 - 0.8 0.2 - 0.5 0.2 - 0.5

Total amount of at least one not 0.05 - 1 0.1 - 0.7 0.1 - 0.3 0.1 - 0.3

ionic thickening polymer,

selected from cellulose, cellulose ethers and mixtures thereof 5 6 7 8

Water 40-90 50-85 60-80 65-75

Total amount of at least one sweat-inhibiting aluminum or aluminum-zirconium compound

Dehydroxanthan gum 0.05-1 0.1 -0.8 0.2-0.5 0.2-0.5

Total amount of at least one cellulose 0.05-1 0.1 -0.7 0.1 -0.3 0.1 -0.3 ether

17 18 19 20

Water 40-90 50-85 60-80 65-75

Total amount of at least one sweat-inhibiting aluminum or aluminum-zirconium compound Dehydroxanthan gum 0.05-1 0.1 -0.8 0.2-0.5 0.2-0.5

Hydoxyethy lcel 1 u lose 0.05-1 0.1 -0.7 0.1 -0.3 0.1 -0.3

Total amount of at least one OI-in 0.5-5 0.8-4 1.2-3 1.5-2 water emulsifier with an HLB value

from greater 7 to 20

29 30 31 32

Water 40-90 50-85 60-80 65-75

Dehydroxanthan gum 0.05-1 0.1 -0.8 0.2-0.5 0.2-0.5 Total amount of at least one cellulose 0.05-1 0.1 -0.7 0.1 -0.3 0.1 -0.3 ether

Steareth-21 0,5-5 0,8-4 1,2-3 1,5-2

41 42 43 44

Water 40-90 50-85 60-80 65-75

Dehydroxanthan gum 0.05-1 0.1 -0.8 0.2-0.5 0.2-0.5

Hydroxyethylcel I u lose 0.05-1 0.1 - 0.7 0.1 -0.3 0.1 -0.3 Total amount of at least one oil 0.5-5 0.8-4 1.2-3 1.5-2 water emulsifier with an HLB value

from greater 7 to 20

Total amount of at least one water 1.8-3 2-2.8 2-2.8 2.4-2.6 in-oil emulsifier with an HLB value

greater than 1, 0 and less than or equal to 7.0,

49 50 51 52

Water 40-90 50-85 60-80 65-75

Dehydroxanthan gum 0.05-1 0.1 -0.8 0.2-0.5 0.2-0.5

Hydroxyethylcel I u lose 0.05-1 0.1 - 0.7 0.1 -0.3 0.1 -0.3

Total amount of at least one oil 0.5-5 0.8-4 1.2-3 1.5-2 water emulsifier with an HLB value

from greater 7 to 20

Total amount of at least one water 1.8-3 2-2.8 2-2.8 2.4-2.6 in-OI emulsifier with an HLB value

greater than 1, 0 and less than or equal to 7.0,

Total amount of at least one cosmetic 0.1-15 0.3-10 0.5-6 0.5-6 oil

57 58 59 60

Water 40-90 50-85 60-80 65-75

Dehydroxanthan gum 0.05-1 0.1 -0.8 0.2-0.5 0.2-0.5

Hydroxyethylcel I u lose 0.05-1 0.1 - 0.7 0.1 -0.3 0.1 -0.3

Total amount of at least one non-0.5-5 0.8-4 1.2-3 1.5-2 ionic oil-in-water emulsifier with

an HLB value greater than 7 to 20

Total amount of at least one non-1.8-3 2-2.8 2-2.8 2.4-2.6 ionic water-in-oil emulsifier with an HLB value greater than 1, 0 and

less than or equal to 7.0,

Total amount of at least one cosmeti0.1 - 15 0.3-10 0.5-6 0.5-6

oil

61 62 63 64

Water 40-90 50-85 60-80 65-75

Total amount of at least one sweat5-35 8-30 10-25 16-20

inhibiting aluminum or aluminum-zirconium compound

Dehydroxanthan gum 0.05-1 0.1 -0.8 0.2-0.5 0.2-0.5

Hydroxyethylcel I u lose 0.05-1 0.1 - 0.7 0.1 -0.3 0.1 -0.3

Steareth-21 0,5-5 0,8-4 1,2-3 1,5-2

Steareth-2 1,8-3 2-2,8 2-2,8 2,4-2,6

PPG-15 stearyl ether 0.1-15 0.3-10 0.5-6 0.5-6

The inventive compositions Nos. 45 to 64 are in the form of an oil-in-water emulsion.

Claims

An antiperspirant composition for roll-on application, comprising the four components below:

a) water,

A composition according to claim 1, characterized in that 0.05 to 1 wt .-%, preferably 0.1 to 0.8 wt .-%, particularly preferably 0.2 to 0.5 wt .-%, each based on the Total weight of the composition, contained in dehydroxanthan gum.

A composition according to claim 1 or 2, characterized in that the at least one nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof, in a total amount of 0.05 to 1 wt .-%, preferably 0.1 to 0, 7 wt .-%, particularly preferably 0.1 to 0.3 wt .-%, each based on the total weight of the composition.

A composition according to claim 1, 2 or 3, characterized in that dehydroxanthan gum and the total amount of nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof, in a weight ratio of 1 to 2.5, preferably 1, 2 to 2.0 , more preferably 1, 4 to 1, 6, is included.

Composition according to Claim 1, 2, 3 or 4, characterized in that hydroxyethylcellulose is present as the nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof.

Composition according to Claim 1, 2, 3, 4 or 5, characterized in that, based in each case on the total weight of the composition, 0.1-0.8% by weight of dehydroxanthan gum and 0.1-0.7% by weight of % Hydroxyethyl cellulose are included.

Composition according to Claim 1, 2, 3, 4, 5 or 6, characterized in that at least one oil-in-water emulsifier having an HLB value of greater than 7 to 20, preferably at least one nonionic oil-in-water emulsifier with an HLB value greater than 7 to 20, is included.

8. The composition of claim 1, 2, 3, 4, 5, 6 or 7, characterized in that at least one water-in-oil emulsifier having an HLB value greater than 1, 0 and less than or equal to 7.0, preferably in the range of 3 - 6, is included.

9. The composition of claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that at least one cosmetic oil, preferably in a total amount of 0.1 to 15 wt .-%, particularly preferably 0.3 - 10 wt .-%, most preferably 0.5 - 6 wt .-%, each based on the weight of the total antiperspirant composition according to the invention, is included.

10. The composition of claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, characterized in that the composition comprises at least one cosmetic oil and at least one oil-in-water emulsifier having an HLB value of more contains 7 to 20 and is present as an oil-in-water emulsion, which is not a microemulsion.

11. A composition according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, characterized in that the composition comprises at least one cosmetic oil, at least one oil-in-water emulsifier having an HLB value of more than 7 to 20 and at least one water-in-oil emulsifier having an HLB value greater than 1.0, and less than or equal to 7.0, preferably in the range of 3-6, and is present as an oil-in-water Emulsion which is not a microemulsion is present.

12. The composition of claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or 1 1, characterized in that the composition comprises at least one cosmetic oil in a total amount of 0.1 - 15 wt. %, at least one oil-in-water emulsifier having an HLB value of more than 7 to 20 in a total amount of in a total amount of 0.5 to 5 wt .-% and at least one water-in-oil emulsifier with an HLB value greater than 1, 0 and less than or equal to 7.0, preferably in the range of 3-6, a total amount of 1, 8 - 3 wt .-%, each based on the weight of the total antiperspirant composition according to the invention and as an oil-in-water emulsion which is not a microemulsion.

13. The composition of claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1 or 12, characterized in that the composition comprises at least one cosmetic oil in a total amount of 0.5 to 6 wt %, at least one oil-in-water emulsifier having an HLB value of more than 7 to 20 in a total amount of in a total amount of 1, 2-3% by weight and at least one water-in-oil Emulsifier with an HLB value greater than 1, 0 and less than or equal to 7.0, preferably in the range of 3-6, a total amount of 1, 8 to 3 wt .-%, each based on the weight of entire antiperspirant composition according to the invention, and is present as an oil-in-water emulsion, which is not a microemulsion.

14. The composition of claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12 or 13, characterized in that the composition 0.1 to 0.8 wt .-% dehydroxanthan Gum, 0.1 to 0.7% by weight of hydroxyethylcellulose, at least one cosmetic oil in a total amount of 0.5-6% by weight, at least one oil-in-water emulsifier having an HLB value of more than 7 to 20 in a total amount of in a total amount of 1, 2-3 wt .-% and at least one water-in-oil emulsifier having an HLB value greater than 1, 0 and less than or equal to 7.0, preferably in the range from 3 to 6, a total amount of 1, 8 to 3 wt .-%, each based on the weight of the total antiperspirant composition according to the invention, and is present as an oil-in-water emulsion, which is not a microemulsion.

15. Use of a combination of dehydroxanthan gum and at least one nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof, for reducing the residue and / or for improving the viscosity stability of an antiperspirant composition for roll-on application, the water and at least contains an antiperspirant aluminum or aluminum-zirconium compound and optionally has the characterizing feature according to any one of claims 2 to 14.