GB2549562A - Active substance combination for deodorants - Google Patents

Abstract

The present invention relates to cosmetic agents that contain 0.01-1% by weight of at least one menthol ester and 0.1-3% by weight of at least one glycerol ether. The agent further comprises at least two compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal (also known as lilial), citronellol, alpha-isomethyl ionone, and geraniol. Preferably the menthol ester is menthyl acetate and the glycerol ether is ethylhexylglycerin. The cosmetic agent may have a long-lasting deodorizing effect and it claimed is the use of the cosmetic agent for the treatment of body odour.

Description

"Active substance combination for deodorants" [0001] The present application relates to cosmetic and dermatological deodorant compositions that have an improved and long-lasting effect.

[0002] In addition, the present invention relates to the use of said compositions for the treatment of body odor.

[0003] There are eccrine and apocrine sweat glands in the human axilla. Whereas the eccrine glands produce an aqueous secretion in response to heat, the apocrine glands secrete a viscous secretion in response to stress. This apocrine sweat is a complex mixture, which contains, among others, steroids, cholesterol, and other fats and about 10% protein. An unpleasant odor under the axilla forms from the initially odorless secretion due to the bacterial decomposition of substances in apocrine sweat.

[0004] The decomposition products of apocrine sweat, which contribute substantially to body odor, in particular to axillary body odor, can be divided into in two classes: on the one hand, into short-chain C4-C10 fatty acids, which may be linear, branched, saturated, and unsaturated (for example, isovaleric acid), and on the other, into various steroid hormones and their metabolic products (for example, 5-a-androstenol and 5-a-androstenone).

[0005] Body odor can be controlled accordingly by preventing the bacterial decomposition of sweat or by using perfume to cover the body odor. Antimicrobial substances that reduce the number of sweat-decomposing bacteria on the skin by killing them are used in the state of the art to prevent the bacterial decomposition of sweat. However, the effect of such antibacterial substances on the prevention of body odor and the use of perfume to cover the arising body odor do not always result in a satisfactory deodorant performance.

[0006] There is a need therefore for cosmetic agents that have both a high and a long-lasting deodorizing action against body odor.

[0007] The object of the present invention therefore was to provide a cosmetic agent for reducing and/or preventing body odor, which has a good and long-lasting action against body odor. Furthermore, these cosmetic agents are to be producible cost-effectively and to have a high storage stability.

[0008] It was now found surprisingly that a combination of a menthol ester, a glycerol ether, and at least two compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol not only specifically combats odor-causing bacteria but, moreover, has an unexpectedly long deodorizing effect.

[0009] A first subject of the present application therefore is a cosmetic agent containing in a cosmetically acceptable carrier and based on its total weight a) 0.01 to 1.0% by weight of at least one menthol ester, b) 0.1 to 3.0% by weight of at least one glycerol ether, and c) at least two compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol.

[0010] The term "menthol ester" according to the invention is understood to be carboxylic acid derivatives that have at least one functional group R1-C(0)-0-R2, where Rt stands for Ci-C^ alkyl groups, C2-C30 alkylene groups, and C5-C30 aralkyl groups, and R2 for the menthol group. Menthol esters preferred according to the invention can be obtained by reacting menthol with a carboxylic acid and contain precisely one aforementioned functional group. The term "menthol ester" according to the invention also comprises all diastereomeric and enantiomeric forms of said esters, in particular esters of (+)-menthol, (-)-menthol, (+)-neomenthol, (-)-neomenthol, (+)-isomenthol, (-)-isomenthol, (+)-neoisomenthol, (-)-neoisomenthol, and mixtures thereof.

[0011] Furthermore, the term "glycerol ether" according to the invention is understood to be compounds that have at least one functional R3-0-R4 group. R3 in this case stands for the glycerol group and R4 for linear or branched C2-C30 alkyl groups. Preferred glycerol ethers contain precisely one aforementioned functional group and are also called glycerol monoethers. Ethers of this kind can be obtained, for example, by condensing glycerol with a suitable alcohol with use of strong acids or by reacting salts of glycerol with suitable alkyl halides.

[0012] The data given in percentages by weight in the present case, provided not stated otherwise, refer to the total weight of the cosmetic agents of the invention, the sum of all ingredients of the agents of the invention being 100% by weight.

[0013] The cosmetic agent contains components a) to c) in a cosmetically acceptable carrier. The carrier preferably contains at least one component selected from water, ethanol, a cosmetic oil that is liquid under normal conditions, and mixtures thereof. The cosmetic oils that are liquid under normal conditions are not miscible with water and are neither fragrances nor essential oils. "Normal conditions" in the context of the present application are a temperature of 20°C and a pressure of 1013 hPa.

[0014] Preferred cosmetically acceptable carriers are aqueous, alcoholic, or aqueous-alcoholic media, the aqueous and aqueous-alcoholic media preferably containing at least 10% by weight of water, based on the total weight of the cosmetic agent. Particularly preferably, the cosmetically acceptable carrier contains water, in particular in a total amount; namely the cosmetic agent contains, calculated in terms of the total weight of the cosmetic agent, at least 10% by weight, preferably at least 20% by weight, in particular at least 40% by weight of water. Very particularly preferably cosmetic agents have, based on their total weight, a proportion of water of 50 to 95% by weight, preferably of 60 to 90% by weight, in particular of 65 to 85% by weight.

[0015] In particular, lower alcohols, usually used for cosmetic purposes and having 1 to 4 carbon atoms, for example, ethanol and isopropanol, can be contained as alcohols. Aqueous-alcoholic carriers preferably contain ethanol in a total amount of 20 to 70% by weight, preferably of 25 to 65% by weight, in particular of 25 to 60% by weight, based on the total weight of the cosmetic composition.

[0016] Additional preferred cosmetic carriers are liquid cosmetic oils. These cosmetic oils can be selected from the group of (i) volatile nonsilicone oils, in particular liquid paraffin oils and isoparaffin oils, such as isodecane, isoundecane, isododecane, isotridecane, isotetradecane, isopentadecane, isohexadecane, and isoeicosane; (ii) nonvolatile nonsilicone oils, in particular triethyl citrates, dicarboxylic acid esters of linear or branched C2-C10 alkanols, adducts of ethylene oxide and/or propylene oxide to mono- or polyhydric C3-C22 alkanols, which optionally may be esterified, symmetric, asymmetric, or cyclic esters of carbonic acid with fatty alcohols, esters of dimers of unsaturated C12-C22 fatty acids with monohydric, linear, branched, and cyclic C2-C18 alkanols or C2-C6 alkanols, benzoic acid esters of linear or branched C8-C22 alkanols, such as benzoic acid C12-C15 alkyl esters and benzoic acid isostearyl esters and benzoic acid octyldodecyl esters, synthetic hydrocarbons, such as polyisobutene and polydecenes, alicyclic hydrocarbons; and (iii) mixtures thereof.

[0017] The term "volatile cosmetic oil" according to the invention describes cosmetic oils that at 20°C and an ambient pressure of 1013 hPa have a vapor pressure of 2.66 Pa to 40,000 Pa (0.02 to 300 mm Hg), preferably of 10 to 12,000 Pa (0.1 to 90 mm Hg), more preferably of 13 to 3,000 Pa (0.1 to 23 mm Hg), in particular of 15 to 500 Pa (0.1 to 4 mm Hg). In addition, the term "nonvolatile cosmetic oils" in the context of the present invention is understood to be cosmetic oils that at 20°C and an ambient pressure of 1013 hPa have a vapor pressure of less than 2.66 Pa (0.02 mm Hg).

[0018] Preferred further according to the invention is the use of mixtures of the aforementioned cosmetic oils, in particular of nonvolatile and volatile cosmetic oils, because parameters such as skin feel, residue visibility, and stability of the cosmetic agent of the invention can be specified in this way and the agent can therefore be better adapted to the needs of consumers.

[0019] Within the context of the present invention, it is preferable if the cosmetic oil that is liquid at 20°C and 1013 hPa is contained in a total amount of 1.0 to 50% by weight, primarily of 2.0 to 40% by weight, preferably of 3.0 to 30% by weight, more preferably of 4.0 to 25% by weight, in particular of 5.0 to 20% by weight, based on the total weight of the cosmetic agent.

[0020] The cosmetic agent of the invention contains at least one menthol ester as the first essential component a). Menthol is a monocyclic monoterpene alcohol, which occurs in two enantiomeric forms, (+)- and (-)-menthol.

[0021] Furthermore, there are three diastereomeric pairs (also designated as so-called isomeric menthols), which are known under the names neomenthol, isomenthol, and neoisomenthol.

[0022] According to the invention, esters of all enantiomeric and diastereomeric forms of menthol and mixtures thereof can be used as menthol esters.

[0023] Preferably, menthol esters are employed according to the invention that are obtained by condensation of menthol and its enantiomers and diastereomers with linear or branched carboxylic acids. Preferred cosmetic agents of the invention are therefore characterized in that they contain at least one menthol ester from the group of menthol esters with linear or branched CrC2o carboxylic acids and mixtures thereof. The use of esters of this kind in combination with the other components b) and c) of the cosmetic agents of the invention has proven especially advantageous in regard to the deodorizing performance and long-term effect.

[0024] Particularly preferably, the cosmetic agents of the invention contain special menthol esters. It is particularly preferred therefore in the context of the present invention, if the cosmetic agent contains at least one menthol ester in the form of menthyl acetate. Menthyl acetate (CAS number 89-48-5) is understood to be the ester of (+)- and/or (-)-menthol with formic acid, which has the following general structural formula:

[0025] The use of menthyl acetate in combination with the at least one glycerol ether and component c) in the cosmetic agents of the invention results in an excellent deodorizing effect, which in addition lasts for a long time. In contrast, the use of menthyl acetate as the sole active substance does not result in satisfactory deodorizing.

[0026] The at least one menthol ester a) is used within specific amount ranges. It is advantageous according to the invention, however, to use these esters in narrower amount ranges. Preferred cosmetic agents of the present invention are therefore characterized in that, based on their total weight, they contain at least one menthol ester, in particular menthyl acetate, in a total amount of 0.02 to 0.8% by weight, primarily of 0.03 to 0.5% by weight, preferably of 0.04 to 0.3% by weight, in particular of 0.05 to 0.2% by weight. The use of the at least one menthol ester, in particular menthyl acetate, in the aforementioned amount ranges in combination with the other components b) and c) of the cosmetic agents of the invention leads to excellent deodorizing. Furthermore, the deodorizing effect achieved with these amounts lasts for a long time period. Moreover, these amounts do not lead to a negative interaction with other ingredients of the cosmetic agents of the invention, so that the cosmetic agents of the invention have a high stability.

[0027] The cosmetic agent of the invention contains at least one glycerol ether as second essential component b).

[0028] It is preferred according to the invention if specific glycerol ethers are used. It is therefore advantageous according to the invention, if the cosmetic agent contains at least one glycerol ether from the group of mono-, di-, or triethers of glycerol with linear or branched C2-C2o alcohols and mixtures thereof. The use of ethers of this kind has proven especially advantageous in combination with the other components a) and c) of the agents of the invention in regard to the long-lasting deodorizing effect of these agents.

[0029] It is particularly preferred in the context of the present invention, if glycerol monoethers with branched alcohols are used. Preferred cosmetic agents of the invention are therefore characterized in that they contain at least one glycerol ether in the form of 3-[(2-ethylhexyl)oxy]-1,2-propanediol. 3-[(2-Ethylhexyl)oxy]-1,2-propanediol (CAS number: 70445-33-9) is also known under the chemical name Octoxyglycerin and has the following structural formula:

[0030] The use of ethylhexylglycerin in combination with the at least one menthol ester, in particular menthyl acetate, and component c) in the cosmetic agents of the invention leads to an excellent deodorizing effect, which moreover lasts for a long time. In contrast, the use of ethylhexylglycerin as the sole active substance does not result in satisfactory deodorizing.

[0031] The at least one glycerol ether b) is used in specific amount ranges. It is advantageous according to the invention, however, to use this ether in narrower amount ranges. Preferred cosmetic agents of the present invention are therefore characterized in that, based on their total weight, they contain at least one glycerol ether, in particular ethylhexylglycerin, in a total amount of 0.2 to 2.5% by weight, primarily of 0.3 to 2.0% by weight, preferably of 0.3 to 1.5% by weight, in particular of 0.5 to 1.2% by weight. The use of the at least one glycerol ether, in particular 3-[(2-ethylhexyl)oxy]-1,2-propanediol, in the aforementioned amount ranges in combination with the at least one menthol ester, in particular menthyl acetate, and the further component c) of the cosmetic agents of the invention leads to excellent deodorizing. Furthermore, the deodorizing effect achieved with these amounts lasts for a long time period. Moreover, these amounts do not lead to a negative interaction with other ingredients of the cosmetic agents of the invention, so that the cosmetic agents of the invention have a high stability.

[0032] It has proven especially advantageous in the context of the present invention, if specific weight ratios of the at least one menthol ester a), in particular menthyl acetate, to the at least one glycerol ether b), in particular 3-[(2-ethylhexyl)oxy]-1,2-propanediol, are used. It is therefore preferred according to the invention, if the cosmetic agent has a weight ratio of the at least one menthol ester a), in particular menthyl acetate, to the at least one glycerol ester b), in particular 3-[(2-ethylhexyl)oxy]-1,2-propanediol, of 1:20 to 1:1, preferably of 1:15 to 1:1, preferably of 1:10 to 1:3, in particular of 1:10 to 1:6. When the aforementioned weight ratios of components a) and b), in particular menthyl acetate and 3-[(2-ethylhexyl)oxy]-1,2-propanediol, are used, an especially good deodorizing effect is achieved, which moreover lasts for a long time period.

[0033] The cosmetic agents of the invention contain as the third component c) at least two compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol. The aforementioned terms cover both the individual enantiomers and racemic mixtures of these enantiomers. These compounds have the following general structural formulas:

[0034] The use of more than two of the aforementioned compounds is preferred according to the invention. For this reason, preferred cosmetic agents of the invention are characterized in that they contain at least three compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol.

[0035] Other agents preferred according to the invention are characterized in that they contain at least four compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol.

[0036] Particularly preferred agents of the invention are characterized in that they contain limonene and 3-(4-tert-butylphenyl)-2-methylpropanal and citronellol and alpha-isomethyl ionone and geraniol. The use of more than two of the aforementioned compounds, in particular of three, four, or all aforementioned compounds, in combination with the at least one menthol ester a) and the at least one glycerol ether b), in particular with menthyl acetate and 3-[(2-ethylhexyl)oxy]-1,2-propanediol, leads to a synergistic increase in the deodorizing effect and to a prolongation of the deodorizing effect in comparison with agents that do not have the aforementioned combination.

[0037] It has proven advantageous in the context of the present invention if component c) is used in specific amount ranges. It is therefore preferred according to the invention, if the cosmetic agent, based on its total weight, contains the at least two compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol in a total amount of 0.0005 to 1.0% by weight, primarily of 0.001 to 0.5% by weight, preferably of 0.01 to 0.1% by weight, in particular of 0.01 to 0.05% by weight. The aforementioned quantitative data refer in each case to the sum of the total amounts of all compounds used as component c). The use of the aforementioned amounts in combination with components a) and b), in particular menthyl acetate and 3-[(2-ethylhexyl)oxy]-1,2-propanediol, leads to an especially good deodorizing effect, which moreover lasts for a long time. Further, the incorporation of these amounts does not lead to incompatibilities with other components of the cosmetic agents of the invention, so that they have a high stability.

[0038] It can be advantageous in the context of the present invention, if the cosmetic agents of the invention contain, apart from components a) to c), at least one additional compound d). It is therefore preferred in the context of the present invention, if the cosmetic agent, based on its total weight, contains in addition at least one compound d), selected from the group comprising 2,6-dimethyloct-7-en-2-ol, hexyl salicylate, 3,7-dimethyloctan-3-ol, octacyclohexadecen-2-one, 4-tert-butylcyclohexyl acetate, cis-2-tert-butylcyclohexyl acetate, and mixtures thereof in a total amount of 0.0002 to 0.3% by weight, primarily 0.0003 to 0.2% by weight, preferably 0.0004 to 0.15% by weight, in particular 0.0005 to 0.1% by weight. The total amount in this case refers to the sum of all compounds used as component d). Using a mixture of all aforementioned compounds is particularly preferable in this case. The deodorizing effect of the agents of the invention can be increased further thereby.

[0039] It is advantageous furthermore in the context of the present invention, if the cosmetic agent, based on its total weight, contains in addition at least one compound e), selected from the group comprising undecan-4-olide, cyclohexadec-8-en-1-one, 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol, pentadecan-15-olide, alpha-methyl-4-(1-methylethyl)cyclohexanemethanol, 3a,4,5,6,7,7a-hexahydro-4,7-methano-1 H-indenyl propionate, 2,4,4,7-tetramethyl-6-octen-3-one, T,T,5',5'-tetramethylhexahydrospiro[1,3-dioxolane-2,8'(5'H)-2H-2,4a-methanonaphthalene], and mixtures thereof in a total amount of 0.00002 to 0.05% by weight, primarily 0.00003 to 0.04% by weight, preferably 0.00004 to 0.03% by weight, in particular 0.00005 to 0.02% by weight. The total amount in this case refers to the sum of all compounds used as component e). Using a mixture of all aforementioned compounds is particularly preferable in this case. The deodorizing action of the agents of the invention can also be increased further thereby.

[0040] The cosmetic agents of the invention are preferably deodorants that contain no antiperspirant compounds such as, for example, aluminum and/or aluminum-zirconium salts. The cosmetic agents of the invention are therefore characterized in that they contain no antiperspirant compounds, in particular antiperspirant aluminum and/or zirconium salts. Antiperspirant compounds according to the invention are understood to be compounds that prevent or reduce the transpiration of the body's sweat glands. Furthermore, the terms "aluminum salt" and aluminum-zirconium salt" are understood to be chemical compounds that are made of positively charged ions (also called cations) in the form of zirconium and/or aluminum and negatively charged ions (also called anions) in the form of halides, in particular chlorides, and hydroxides. There are ionic bonds between these ions.

[0041] In this regard, it is particularly preferred, if the cosmetic agents of the invention do not contain any of the antiperspirant aluminum and/or zirconium salts and mixtures thereof listed hereafter: (i) water-soluble astringent salts of aluminum, in particular aluminum chlorohydrate, aluminum sesquichlorohydrate, aluminum dichlorohydrate, aluminum hydroxide, potassium aluminum sulfate, aluminum bromohydrate, aluminum chloride, and aluminum sulfate; (ii) water-soluble astringent aluminum-zirconium salts, in particular aluminum zirconium-propylene glycol complexes, aluminum-zirconium trichlorohydrex glycine, aluminum-zirconium tetrachlorohydrexglycine, aluminum-zirconium pentachlorohydrex glycine, and aluminum-zirconium octachlorohydrex glycine.

[0042] It can be provided in the context of the present invention that the cosmetic agents of the invention contain further active substances and ingredients. These substances can be selected in particular from the esters of C3-C30 carboxylic acids, nonionic surfactants, chelating agents, thickeners, active deodorant substances, and mixtures thereof.

[0043] Preferred cosmetic agents of the present invention contain in addition at least one ester of a C3-C30 carboxylic acid, in particular triethyl citrate. It is therefore preferred in the context of the present invention, if the cosmetic agents contain in addition an ester of a C3-C30 carboxylic acid, preferably an ester from the group of 2-ethylhexyl palmitate, isopropyl palmitate, and triethyl citrate, in a total amount of 0.1 to 15% by weight, primarily of 0.2 to 10% by weight, preferably of 0.5 to 5.0% by weight, in particular of 1.0 to 3.0% by weight, based on the total weight of the cosmetic agent. Particularly preferred cosmetic agents contain as esters a C3-C30 carboxylic acid triethyl citrate in the aforementioned total amounts. The use of esters of this kind, in particular of triethyl citrate, has proven to be advantageous in regard to the deodorizing performance and the improved long-term effect of the cosmetic agents of the invention.

[0044] It is advantageous, furthermore, in the context of the present invention, if the cosmetic agents of the invention contain in addition at least one nonionic surfactant. The term "nonionic surfactants" according to the invention is understood to be compounds that contain at least one hydrophobic and at least one hydrophilic molecular moiety and no charged or ionizable groups. The hydrophobic group is preferably a hydrocarbon chain having 8 to 28 carbon atoms, which may be saturated or unsaturated, linear or branched. Particularly preferably said C8-C28 alkyl chain is linear. The hydrophilic molecular moiety is preferably a poly(alkylene oxide), in particular polyethylene oxide) and/or polypropylene oxide). Cosmetic agents of the present invention that are preferred according to the invention are therefore characterized in that they contain in addition a nonionic surfactant from the group of polyalkylene glycol ethers, preferably from the group of alkoxylated C8-C24 alkanols with on average 10 to 100 mol of alkylene oxide per mole, preferably from the group of ethoxylated C12-C18 alkanols with on average 10 to 30 mol of ethylene oxide per mole, alkoxylated hydrogenated castor oils, and mixtures thereof in a total amount of 0.1 to 10% by weight, primarily of 0.2 to 7.0% by weight, preferably of 0.3 to 6.0% by weight, in particular of 0.4 to 5.0% by weight, based on the total weight of the cosmetic agent. Particularly preferred cosmetic agents of this embodiment contain nonionic surfactants from the group of alkoxylated C18 alcohols with on average 15 mol of propylene oxide and/or 2 to 21 mol of ethylene oxide, hydrogenated castor oil with on average 40 mol of ethylene oxide, C16-C18 alcohols with on average 2 to 12 mol of ethylene oxide, and mixtures thereof in the aforementioned total amounts. The use of surfactants of this kind enables better incorporation of the ingredients and therefore an improved storage stability of the cosmetic agents of the invention.

[0045] Furthermore, it can be preferred in the context of the present invention, if the cosmetic agents of the invention contain in addition at least one chelating agent. Chelating agents according to the invention are understood to be compounds that can bind to a central atom, in particular a metal atom with at least two binding sites, in particular free electron pairs. It is therefore advantageous in the context of the present invention, if the cosmetic agent contains in addition at least one chelating agent, selected from ethylenediaminetetraacetic acid (EDTA) and salts thereof, nitrilotriacetic acid (NTA) and salts thereof, as well as mixtures thereof, in particular the sodium salts of ethylenediaminetetraacetic acid (EDTA), in a total amount of 0.01 to 0.5% by weight, primarily of 0.02 to 0.3% by weight, preferably of 0.03 to 0.2% by weight, in particular of 0.05 to 0.1% by weight, based on the total weight of the cosmetic agent. Particularly preferred cosmetic agents contain sodium salts of ethylenediaminetetraacetic acid (EDTA) in the aforementioned total amounts. The deodorizing effect of the combination of the invention can be increased further by the use of chelating agents of this kind. Furthermore, stabilization of the cosmetic agent ingredients and therefore an improved storage stability can be achieved.

[0046] Preferably, the cosmetic agents of the invention are formulated as flowable preparations. In this case, the agents should be formulated so that, on the one hand, they can be distributed well, but on the other, are sufficiently viscous so that they remain at the site of action, in particular under the axilla, during the contact time and do not run or are not transferred excessively to clothing. Preferred cosmetic agents are therefore characterized in that they contain in addition at least one thickener, selected from the group comprising cellulose ethers, xanthan gum, sclerotium gum, succinoglucans, guar gums, locust bean gum, nonionic hydroxyalkyl guar derivatives and locust bean gum derivatives, pectins, agar, carrageen (carrageenan), tragacanth, gum arabic, karaya gum, tara gum, gellan gum, gelatin, casein, hydroxyalkyl celluloses, propylene glycol alginate, alginic acids and salts thereof, polyvinylpyrrolidones, polyvinyl alcohols, polyacrylamides, hydroxypropylated starch phosphates and starch octenylsuccinates, acrylic acid/acrylate copolymers, acrylic acid/acrylamide copolymers, acrylic acid/vinylpyrrolidone copolymers, acrylic acid/vinyl formamide copolymers and polyacrylates, in a total amount of 0.01 to 2.0% by weight, in particular of 0.1 to 0.5% by weight, based on the total weight of the cosmetic agent. Preferred thickeners are selected from cellulose ethers, especially from hydroxyalkyl celluloses, in particular hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, carboxymethylcellulose, cetyl hydroxyethyl cellulose, hydroxybutyl methyl cellulose, and methyl hydroxyethyl cellulose, as well as mixtures thereof. Hydroxyethyl cellulose is used particularly preferably as a thickener.

[0047] It can be preferred, furthermore, in the context of the present invention to use, apart from the aforementioned active substance combination of the invention, other active deodorant substances. Preferred cosmetic agents of the invention are therefore characterized in that they contain in addition at least one active deodorant substance in a total amount of 0.0001 to 40% by weight, primarily of 0.2 to 20% by weight, preferably of 1 to 15% by weight, in particular of 1.5 to 5% by weight, based on the total weight of the cosmetic agent. If ethanol is used in the agents of the invention, in the context of the present invention it is not regarded as an active deodorant substance but as a component of the carrier. Active deodorant substances preferred according to the invention are selected from the group of (i) silver salts; (ii) aromatic alcohols, in particular 2-benzylheptan-1-ol, and mixtures of 2-benzylheptan-1-ol and phenoxyethanol; (iii) 1,2-alkane diols having 5 to 12 carbon atoms, in particular 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol; (iv) active substances against exoesterases, in particular against aryl sulfatases, lipases, beta-glucuronidases, and cystathione-p-lyases; (v) cationic phospholipids; (vi) odor absorbers, in particular silicates, such as montmorillonite, kaolinite, illite, beidellite, nontronite, saponite, hectorite, bentonite, smectite and talc, zeolites, zinc ricinoleate, and cyclodextrins; (vii) ion exchangers having a deodorizing action; (viii) bacteriostatic agents; (ix) components having a prebiotic action; and (x) mixtures of the above active deodorant substances.

[0048] The cosmetic agents of the invention can be formulated as a propellant-driven aerosol. In this case, the agents contain at least one propellant. Preferred propellants (propellant gases) are propane, propene, n-butane, isobutane, isobutene, n-pentane, pentene, isopentane, isopentene, methane, ethane, dimethyl ether, nitrogen, air, oxygen, laughing gas, 1,1,1,3-tetrafluorethane, heptafluoro-n-propane, perfluoroethane, monochlorodifluoromethane, and 1,1-difluoroethane, in fact both individually and in combination. Hydrophilic propellant gases such as, e.g., carbon dioxide, can also be used advantageously in the context of the present invention, if a low proportion of hydrophilic gases is selected and a lipophilic propellant gas (e.g., propane/butane) is present in excess. Propane, n-butane, isobutane, and mixtures of said propellant gases are particularly preferred. It has been shown that the use of n-butane as the sole propellant can be particularly preferred according to the invention.

[0049] The total amount of the propellants is primarily 5 to 95% by weight, preferably 20 to 88% by weight, in particular 30 to 80% by weight, based in each case on the total weight of the cosmetic agent, consisting of the agent of the invention (= agent of the invention) and the propellant.

[0050] Vessels made of metal (aluminum, tin plate, tin), of protected or non-splintering plastic, or of glass that is externally coated with plastic may be used as compressed-gas containers; pressure and breaking strength, corrosion resistance, ease of filling, as well as aesthetic aspects, handling, printability, etc., play a role in their selection. Special internal protective coatings ensure corrosion resistance with respect to the composition of the invention.

[0051] Particularly preferred embodiments AF 1 to AF 128 of the cosmetic agents of the invention are listed in the following tables (all data are given in percentage by weight, unless otherwise stated). Embodiments AF 1 to AF 128 contain no antiperspirant compounds.

1) Component c) contains at least two or three or four or five compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol; 2) The carrier contains water, ethanol, propellant, and mixtures thereof; 3) The menthol ester is selected from the group of menthol esters with linear or branched C20 carboxylic acids and mixtures thereof; 4) The glycerol ether is selected from the group of mono-, di-, or triethers of glycerol with linear or branched C2-C20 alcohols and mixtures thereof; 5) Compound d) contains 2,6-dimethyloct-7-en-2-ol, hexyl salicylate, 3,7-dimethyloctan-3-ol, octacyclohexadecen-2-one, 4-tert-butylcyclohexyl acetate, and cis-2-tert-butylcyclohexyl acetate; 6) Compound e) contains undecan-4-olide, cyclohexadec-8-en-1-one, 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol, pentadecan-15-olide, alpha-methyl-4-(1-methylethyl)-cyclohexanemethanol, 3a,4,5,6,7,7a-hexahydro-4,7-methanol-1H-indenyl propionate, 2,4,4,7-tetramethyl-6-octen-3-one, and 1 ',1 ',5',5'-tetramethylhexahydrospiro[1,3-dioxolane-2,8'(5'H)-2H-2,4a-methanonaphthalene], [0052] The embodiments AF 1 to 128 have a weight ratio of the at least one menthol ester or menthyl acetate to the at least one glycerol ether or 3-[(2-ethylhexyl)oxy]-1,2-propanediol of 1:10 to 1:6.

[0053] Embodiments 1 to 128, presented above, of the cosmetic agents of the invention, because of the use of a combination of at least one menthol ester, in particular menthyl acetate, at least one glycerol ether, in particular 3-[(2-ethylhexyl)oxy]-1,2-propanediol, and at least further component c), result in a synergistic increase in the deodorizing effect in comparison with the use of the individual components or a mixture of only two of the three components a) to c). Furthermore, the use of said combination can prolong the deodorizing effect. Moreover, said combination can be easily incorporated into formulations, so that no incompatibilities arise and these agents have a high storage stability.

[0054] A second subject of the present invention is the use of a cosmetic agent of the invention for the treatment of body odor.

[0055] The statements made about the cosmetic agents of the invention apply mutatis mutandis in regard to further preferred embodiments of the use of the invention, in particular in regard to the employed cosmetic agents.

[0056] In summary, the present invention is characterized in particular by the following points: 1. A cosmetic agent, containing in a cosmetically acceptable carrier and based on its total weight a) 0.01 to 1.0% by weight of at least one menthol ester, b) 0.1 to 3.0% by weight of at least one glycerol ether, and c) at least two compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol. 2. The cosmetic agent according to point 1, characterized in that it contains at least one menthol ester from the group of menthol esters with linear or branched <3,-020 carboxylic acids and mixtures thereof. 3. The cosmetic agent according to one of points 1 or 2, characterized in that it contains at least one menthol ester in the form of menthyl acetate. 4. The cosmetic agent according to one of preceding points, characterized in that, based on its total weight, it contains at least one menthol ester, preferably menthyl acetate, in a total amount of 0.02 to 0.8% by weight, preferably of 0.03 to 0.5% by weight, more preferably of 0.04 to 0.3% by weight, most preferably of 0.05 to 0.2% by weight. 5. The cosmetic agent according to one of preceding points, characterized in that it contains at least one glycerol ether from the group of mono-, di-, or triethers of glycerol with linear or branched C2-C20 alcohols and mixtures thereof. 6. The cosmetic agent according to one of preceding points, characterized in that it contains at least one glycerol ether in the form of 3-[(2-ethylhexyl)oxy]-1,2-propanediol. 7. The cosmetic agent according to one of preceding points, characterized in that, based on its total weight, it contains at least one glycerol ether, preferably 3-[(2-ethylhexyl)oxy]-1,2-propanediol, in a total amount of 0.2 to 2.5% by weight, preferably of 0.3 to 2.0% by weight, more preferably of 0.3 to 1.5% by weight, most preferably of 0.5 to 1.2% by weight. 8. The cosmetic agent according to one of preceding points, characterized in that it has a weight ratio of the at least one menthol ester a), preferably menthyl acetate, to the at least one glycerol ester b), preferably 3-[(2-ethylhexyl)oxy]-1,2-propanediol, of 1:20 to 1:1, preferably of 1:15 to 1:1, more preferably of 1:10 to 1:3, most preferably of 1:10 to 1:6. 9. The cosmetic agent according to one of preceding points, characterized in that it contains at least three compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol. 10. The cosmetic agent according to one of preceding points, characterized in that it contains at least four compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol. 11. The cosmetic agent according to one of preceding points, characterized in that it contains limonene and 3-(4-tert-butylphenyl)-2-methylpropanal and citronellol and alpha-isomethyl ionone and geraniol. 12. The cosmetic agent according to one of preceding points, characterized in that, based on its total weight, it contains the at least two compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol in a total amount of 0.0005 to 1.0% by weight, preferably of 0.001 to 0.5% by weight, more preferably of 0.01 to 0.1% by weight, most preferably of 0.01 to 0.05% by weight. 13. The cosmetic agent according to one of preceding points, characterized in that, based on its total weight, it contains in addition at least one compound d), selected from the group comprising 2,6-dimethyloct-7-en-2-ol, hexyl salicylate, 3,7-dimethyloctan-3-ol, octacyclohexadecen-2-one, 4-tert-butylcyclohexyl acetate, cis-2-tert-butylcyclohexyl acetate, and mixtures thereof in a total amount of 0.0002 to 0.3% by weight, preferably 0.0003 to 0.2% by weight, more preferably 0.0004 to 0.15% by weight, most preferably 0.0005 to 0.1% by weight. 14. The cosmetic agent according to one of preceding points, characterized in that, based on its total weight, it contains in addition at least one compound e), selected from the group comprising undecan-4-olide, cyclohexadec-8-en-1-one, 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1 -yl)-2-buten-1 -ol, pentadecan-15-olide, alpha-methyl-4-(1 - methylethyl)cyclohexanemethanol, 3a,4,5,6,7,7a-hexahydro-4,7-methano-1H-indenyl propionate, 2,4,4,7-tetramethyl-6-octen-3-one, 1',1',5',5'-tetramethylhexahydrospiro[1,3-dioxolane-2,8'(5'H)-2H-2,4a-methanonaphthalene], and mixtures thereof in a total amount of 0.00002 to 0.05% by weight, preferably 0.00003 to 0.04% by weight, more preferably 0.00004 to 0.03% by weight, most preferably 0.00005 to 0.02% by weight. 15. The cosmetic agent according to one of preceding points, characterized in that it contains no antiperspirant compounds, in particular antiperspirant aluminum and/or zirconium salts. 16. The cosmetic agent according to one of the preceding points, characterized in that it contains in addition an ester of a C3-C30 carboxylic acid, preferably an ester from the group of 2-ethylhexyl palmitate, isopropyl palmitate, and triethyl citrate, in a total amount of 0.1 to 15% by weight, preferably of 0.2 to 10% by weight, more preferably of 0.5 to 5.0% by weight, most preferably of 1.0 to 3.0% by weight, based on the total weight of the cosmetic agent. 17. Cosmetic agent according to one of the preceding points, characterized in that it contains in addition a nonionic surfactant from the group of polyalkylene glycol ethers, preferably from the group of alkoxylated C8-C24 alkanols with on average 10 to 100 mol of alkylene oxide per mole, preferably from the group of ethoxylated C12-C18 alkanols with on average 10 to 30 mol of ethylene oxide per mole, alkoxylated hydrogenated castor oils, and mixtures thereof in a total amount of 0.1 to 10% by weight, preferably of 0.2 to 7.0% by weight, more preferably of 0.3 to 6.0% by weight, most preferably of 0.4 to 5.0% by weight, based on the total weight of the cosmetic agent. 18. The cosmetic agent according to one of the preceding points, characterized in that it contains in addition at least one chelating agent, selected from ethylenediaminetetraacetic acid (EDTA) and salts thereof, nitrilotriacetic acid (NTA) and salts thereof, as well as mixtures thereof, preferably the sodium salts of ethylenediaminetetraacetic acid (EDTA), in a total amount of 0.01 to 0.5% by weight, preferably of 0.02 to 0.3% by weight, preferably of 0.03 to 0.2% by weight, most preferably of 0.05 to 0.1% by weight, based on the total weight of the cosmetic agent. 19. The cosmetic agent according to one of the preceding points, characterized in that it contains in addition at least one thickener, selected from the group comprising cellulose ethers, xanthan gum, sclerotium gum, succinoglucans, guar gums, locust bean gum, nonionic hydroxyalkyl guar derivatives and locust bean gum derivatives, pectins, agar, carrageen (carrageenan), tragacanth, gum arabic, karaya gum, tara gum, gellan gum, gelatin, casein, hydroxyalkyl celluloses, propylene glycol alginate, alginic acids and salts thereof, polyvinylpyrrolidones, polyvinyl alcohols, polyacrylamides, hydroxypropylated starch phosphates and starch octenylsuccinates, acrylic acid/acrylate copolymers, acrylic acid/acrylamide copolymers, acrylic acid/vinylpyrrolidone copolymers, acrylic acid/vinyl formamide copolymers and polyacrylates, in a total amount of 0.01 to 2.0% by weight, preferably of 0.1 to 0.5% by weight, based on the total weight of the cosmetic agent. 20. Use of a cosmetic agent according to one of points 1 to 19 for the treatment of body odor.

Examples: [0057] The menthol ester used in the following examples is preferably menthyl acetate, and the glycerol ether is preferably 3-[(2-ethylhexyl)oxy]-1,2-propanediol.

[0058] Preferably at least two or three or four or five compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol are used as compound c).

[0059] Compound d) is preferably a mixture of 2,6-dimethyloct-7-en-2-ol, hexyl salicylate, 3,7-dimethyloctan-3-ol, octacyclohexadecen-2-one, 4-tert-butylcyclohexyl acetate, and cis-2-tert-butylcyclohexyl acetate, and compound e) preferably a mixture of undecan-4-olide, cyclohexadec-8-en-1-one, 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol, pentadecan-15-olide, alpha-methyl-4-(1-methylethyl)cyclohexanemethanol, 3a,4,5,6,7,7a-hexahydro-4,7-methano-1H-indenyl propionate, 2,4,4,7-tetramethyl-6-octen-3-one, and 1',1',5',5'- tetramethylhexahydrospiro[1,3-dioxolane-2,8'(5'H)-2H-2,4a-methanonaphthalene].

Deodorant roll-on with alcohol (data in % by weight)

Deodorant roll-on with alcohol (data in % by weight)

[0060] Formulations 4A to 4D were filled in a 3:1 weight ratio with the propellant propane/butane (15/85) into aerosol cans.

Claims (20)

Claims

1. A cosmetic agent, containing in a cosmetically acceptable carrier and based on its total weight a) 0.01 to 1.0% by weight of at least one menthol ester, b) 0.1 to 3.0% by weight of at least one glycerol ether, and c) at least two compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol.

2. The cosmetic agent according to claim 1, characterized in that it contains at least one menthol ester from the group of menthol esters with linear or branched carboxylic acids and mixtures thereof.

3. The cosmetic agent according to one of claims 1 or 2, characterized in that it contains at least one menthol ester in the form of menthyl acetate.

4. The cosmetic agent according to one of preceding claims, characterized in that, based on its total weight, it contains at least one menthol ester, preferably menthyl acetate, in a total amount of 0.02 to 0.8% by weight, preferably of 0.03 to 0.5% by weight, more preferably of 0.04 to 0.3% by weight, most preferably of 0.05 to 0.2% by weight.

5. The cosmetic agent according to one of preceding claims, characterized in that it contains at least one glycerol ether from the group of mono-, di-, or triethers of glycerol with linear or branched C2-C2o alcohols and mixtures thereof.

6. The cosmetic agent according to one of preceding claims, characterized in that it contains at least one glycerol ether in the form of 3-[(2-ethylhexyl)oxy]-1,2-propanediol.

7. The cosmetic agent according to one of preceding claims, characterized in that, based on its total weight, it contains at least one glycerol ether, preferably 3-[(2-ethylhexyl)oxy]-1,2-propanediol, in a total amount of 0.2 to 2.5% by weight, preferably of 0.3 to 2.0% by weight, more preferably of 0.3 to 1.5% by weight, most preferably of 0.5 to 1.2% by weight.

8. The cosmetic agent according to one of preceding claims, characterized in that it has a weight ratio of the at least one menthol ester a), preferably menthyl acetate, to the at least one glycerol ester b), preferably 3-[(2-ethylhexyl)oxy]-1,2-propanediol, of 1:20 to 1:1, preferably of 1:15 to 1:1, more preferably of 1:10 to 1:3, most preferably of 1:10 to 1:6.

9. The cosmetic agent according to one of preceding claims, characterized in that it contains at least three compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol.

10. The cosmetic agent according to one of preceding claims, characterized in that it contains at least four compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol.

11. The cosmetic agent according to one of preceding claims, characterized in that it contains limonene and 3-(4-tert-butylphenyl)-2-methylpropanal and citronellol and alpha-isomethyl ionone and geraniol.

12. The cosmetic agent according to one of preceding claims, characterized in that, based on its total weight, it contains the at least two compounds from the group comprising limonene, 3-(4-tert-butylphenyl)-2-methylpropanal, citronellol, alpha-isomethyl ionone, and geraniol in a total amount of 0.0005 to 1.0% by weight, preferably of 0.001 to 0.5% by weight, more preferably of 0.01 to 0.1% by weight, most preferably of 0.01 to 0.05% by weight.

13. The cosmetic agent according to one of preceding claims, characterized in that, based on its total weight, it contains in addition at least one compound d), selected from the group comprising 2,6-dimethyloct-7-en-2-ol, hexyl salicylate, 3,7-dimethyloctan-3-ol, octacyclohexadecen-2-one, 4-tert-butylcyclohexyl acetate, cis-2-tert-butylcyclohexyl acetate, and mixtures thereof in a total amount of 0.0002 to 0.3% by weight, preferably 0.0003 to 0.2% by weight, more preferably 0.0004 to 0.15% by weight, most preferably 0.0005 to 0.1% by weight.

14. The cosmetic agent according to one of preceding claims, characterized in that, based on its total weight, it contains in addition at least one compound e), selected from the group comprising undecan-4-olide, cyclohexadec-8-en-1-one, 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1 -yl)-2-buten-1 -ol, pentadecan-15-olide, alpha-methyl-4-(1 - methylethyl)cyclohexanemethanol, 3a,4,5,6,7,7a-hexahydro-4,7-methano-1H-indenyl propionate, 2,4,4,7-tetramethyl-6-octen-3-one, 1',1',5',5'-tetramethylhexahydrospiro[1,3-dioxolane-2,8'(5'H)-2H-2,4a-methanonaphthalene], and mixtures thereof in a total amount of 0.00002 to 0.05% by weight, preferably 0.00003 to 0.04% by weight, more preferably 0.00004 to 0.03% by weight, most preferably 0.00005 to 0.02% by weight.

15. The cosmetic agent according to one of preceding claims, characterized in that it contains no antiperspirant compounds, in particular antiperspirant aluminum and/or zirconium salts.

16. The cosmetic agent according to one of the preceding claims, characterized in that it contains in addition an ester of a C3-C30 carboxylic acid, preferably an ester from the group of 2-ethylhexyl palmitate, isopropyl palmitate, and triethyl citrate, in a total amount of 0.1 to 15% by weight, preferably of 0.2 to 10% by weight, more preferably of 0.5 to 5.0% by weight, most preferably of 1.0 to 3.0% by weight, based on the total weight of the cosmetic agent.

17. Cosmetic agent according to one of the preceding claims, characterized in that it contains in addition a nonionic surfactant from the group of polyalkylene glycol ethers, preferably from the group of alkoxylated C8-C24 alkanols with on average 10 to 100 mol of alkylene oxide per mole, preferably from the group of ethoxylated C12-C18 alkanols with on average 10 to 30 mol of ethylene oxide per mole, alkoxylated hydrogenated castor oils, and mixtures thereof in a total amount of 0.1 to 10% by weight, preferably of 0.2 to 7.0% by weight, more preferably of 0.3 to 6.0% by weight, most preferably of 0.4 to 5.0% by weight, based on the total weight of the cosmetic agent.

18. The cosmetic agent according to one of the preceding claims, characterized in that it contains in addition at least one chelating agent, selected from ethylenediaminetetraacetic acid (EDTA) and salts thereof, nitrilotriacetic acid (NTA) and salts thereof, as well as mixtures thereof, preferably the sodium salts of ethylenediaminetetraacetic acid (EDTA), in a total amount of 0.01 to 0.5% by weight, preferably of 0.02 to 0.3% by weight, more preferably of 0.03 to 0.2% by weight, most preferably of 0.05 to 0.1% by weight, based on the total weight of the cosmetic agent.

19. The cosmetic agent according to one of the preceding claims, characterized in that it contains in addition at least one thickener, selected from the group comprising cellulose ethers, xanthan gum, sclerotium gum, succinoglucans, guar gums, locust bean gum, nonionic hydroxyalkyl guar derivatives and locust bean gum derivatives, pectins, agar, carrageen (carrageenan), tragacanth, gum arabic, karaya gum, tara gum, gellan gum, gelatin, casein, hydroxyalkyl celluloses, propylene glycol alginate, alginic acids and salts thereof, polyvinylpyrrolidones, polyvinyl alcohols, polyacrylamides, hydroxypropylated starch phosphates and starch octenylsuccinates, acrylic acid/acrylate copolymers, acrylic acid/acrylamide copolymers, acrylic acid/vinylpyrrolidone copolymers, acrylic acid/vinyl formamide copolymers and polyacrylates, in a total amount of 0.01 to 2.0% by weight, preferably of 0.1 to 0.5% by weight, based on the total weight of the cosmetic agent.

20. Use of a cosmetic agent according to one of claims 1 to 19 for the treatment of body odor.