GB2568135A - Low molecular weight polyethylenimine as antiperspirant product - Google Patents

Abstract

An antiperspirant cosmetic product which contains, in an aqueous carrier, at least one polycationic branched homo-polyethyleneimine (PEI) with a molecular weight of 300-10,000g/mol and wherein the homo-polyethyleneimine contains 20-35mol% tertiary amines; at least one emulsifier; at least one oil component; and wherein the antiperspirant product has a pH of 2.5-7.5, contains at least one anion selected from chloride, phosphate and sulfate and wherein the antiperspirant contains no halides and/or hydroxyhalides of aluminium and/or zirconium. It has been found that the use of homo-polyethyleneimines in compositions that have been pH adjusted to acidic or neutral pH and which contain certain anions (preferably chloride anions) have an antiperspirant/deodorising effect without the use of aluminium or zirconium salts and have a lower tendency to stain textiles. The antiperspirant product may be an oil-in-water emulsion or water-in-oil emulsion. An exemplary antiperspirant product comprises an unmodified, branched homo-polyethyleneimine with a ratio of primary:secondary:tertiary amino groups of 40:36:24, and the composition adjusted to a pH of 3.5 with hydrochloric acid. Also disclosed is a cosmetic method for preventing and/or reducing body odour and/or bodily perspiration, in which said antiperspirant cosmetic product is applied to the skin and remains there for at least one hour.

Description

LOW MOLECULAR WEIGHT POLYETHYLENIMINE AS ANHPERSPIRANT PRODUCT

TECHNICAL FIELD [0001] Embodiments of the present disclosure relate to a cosmetic antiperspirant product which contains at least one branched homo-polyethylenimine (occasionally referred to in the following as “PEI”) in an aqueous cosmetic carrier, and which exists together with selected anions, wherein the cosmetic product has an acidic or neutral pH-value. The present disclosure further relates to a non-therapeutic cosmetic method for preventing and/or reducing bodily perspiration, in which an antiperspirant cosmetic product according to the disclosure is applied to the skin, particularly the skin of the armpits, and remains on the skin of the armpits for at least about 1 hour, preferably at least about 2 hours, more preferably for at least about 4 hours, particularly for at least about 6 hours.

BACKGROUND [0002] Washing, cleaning and caring for one’s body represents a basic human need, and modern industry is trying unceasingly to satisfy these human needs in very many different ways. A particularly important aspect of daily hygiene is the ongoing elimination or at least reduction of body odour and underarm wetness. Very many specialised deodorising or antiperspirant body care products are known in the related art, which have been developed for use in body regions with a high density of sweat glands, particularly in the armpit area. These have been prepared for use in an enormous range of administration forms, for example as powders, in stick form, as aerosol sprays, pump sprays, liquid and gel roll-on applicators, creams, gels and impregnated flexible substrates (deodorant wipes).

[0003] Besides at least one oil or a wax and fragrance component or perfume, cosmetic antiperspirants of the related art contain at least one antiperspirant composition in the form of aluminium salts and/or aluminium-zirconium salts, particularly in the form of halides and/or hydroxyhalides of aluminium and/or zirconium. On the one hand, these antiperspirant compositions reduce the body’s sweat secretion by temporarily constricting and/or blocking the excretory ducts of the sweat glands so that the quantity of sweat may be reduced by from about 20 to about 60 percent. On the other, they have an additional deodorising effect due to their antimicrobial action.

[0004] When combined with the acidic pH value of these antiperspirants, halides and/or hydroxyhalides of aluminium and/or zirconium provoke unpleasant skin reactions in some users. The use of the aforementioned antiperspirant compositions may also cause staining of clothes.

[0005] WO 2006/018073 Al discloses various polyamines, including polyethylenimines among others, as alternatives to halides and/or hydroxyhalides of aluminium and/or zirconium as antiperspirant products. These antiperspirant products are described in WO 2006/018073 Al as flocculating, by which it is meant that the transmission of light by natural sweat is reduced by at least 10% on contact with the sweat inhibiting agent. WO 2006/018073 Al further discloses that the flocculating water-soluble polymers are partly or completely quaternised in a pH from about 4 to about 8. It is believed that the antiperspirant effect is achieved because the flocculations formed block the excretory ducts from sweat glands. The formation of flocculations is often perceived as visually unattractive by consumers, and the flocculations may also be transferred to clothing, where they give rise to stains.

[0006] It is therefore desirable to provide antiperspirant agents without halides and/or hydroxyhalides of aluminium and/or zirconium. The antiperspirant ingredients contained in the cosmetic product should have an improved or very good antiperspirant effect and cause less staining on textiles.

SUMMARY [0007] Aspects and embodiments of the invention are defined in the appended claims. [0008] By using such a cosmetic product in accordance with the appended claims, it is possible to produce cosmetic antiperspirant substances which contain no aluminium salts and/or zirconium salts and yet are still highly effective with reduced staining effects on textiles.

DETAILED DESCRIPTION [0009] Surprisingly, it has been found by the present inventors that the use of certain polyethylenimines contained in a cosmetic product that has been adjusted to an acid to neutral pH-value and contains certain anions have an antiperspirant effect which is even comparable with the antiperspirant effect of formulations with aluminium salts and/or aluminiumzirconium salts. Accordingly, the antiperspirant products according to the disclosure do not contain any antiperspirant halides and/or hydroxyhalides of aluminium and/or zirconium.

[0010] The present disclosure includes the following points:

1. An antiperspirant cosmetic product which, in an aqueous cosmetic carrier, contains relative to the total quantity of the cosmetic product:

a. at least one branched homo-polyethylenimine with a molecular weight from about 300 to about 10.000 g/mol in a total quantity from about 0.1 to about 20 wt%, wherein the homopoly ethylenimine contains a fraction of from about 20 mol% to about 35 mol% amino groups with three non-hydrogen atom radicals relative to the amount of substance of all amino groups in the homo-polyethylenimine,

b. at least one emulsifier in a total quantity from about 0.05 to about 10 wt%, and

c. at least one oil component in a total quantity from about 0.05 to about 50 wt%, wherein:

- the cosmetic product has a pH value from about 2.5 to about 7.5 and the homopolyethylenimine is polycationic,

- the cosmetic product contains at least one anion selected from the group consisting of chloride, phosphates and sulfates, and

- the cosmetic product contains no halides and/or hydroxyhalides of aluminium and/or zirconium.

2. Antiperspirant cosmetic product according to item 1, characterized in that it contains from about 0.5 to about 10 wt%, preferably from about 1.0 to about 7.0 wt%, more preferably from about 2.0 to about 5.0 wt% homo-polyethylenimine.

3. Antiperspirant cosmetic product according to item 1 or 2, characterized in that

10%, 30%, 50%, 95,0 wt% or more, particularly preferably from about 99.0 wt% to about 100 wt%, of the anions are chloride ions.

4. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that it at 22 °C it has a determined pH value from about 2.5 to about 7.0, preferably from about 3.0 to about 5.5, more preferably from about 3.3 to about 4.5.

5. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that the homo-polyethylenimine has an average molecular weight as determined by GPC from about 500 to about 3000 mol/g, preferably from about 1000 to about 2000 mol/g.

6. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that the fraction of amino groups with one non-hydrogen radical (corresponding to primary amino groups with alkaline pH value) is from about 30 to about 45 mol%, preferably from about 35 to about 42 mol%, relative in each case to the amount of substance or all amino groups in the homo-polyethylenimine.

7. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that the fraction of amino groups with two non-hydrogen radicals (corresponding to secondary amino groups with alkaline pH value) is from about 30 to about 45 mol%, preferably from about 32 to about 40 mol%, more preferably from about 34 to about 38 mol%, relative in each case to the amount of substance or all amino groups in the homopolyethylenimine.

8. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that the fraction of amino groups with one non-hydrogen radical is from about 35 to about 42 mol%, the fraction of amino groups with two non-hydrogen radicals is from about 34 to about 38 mol%, and the fraction of amino groups with three non-hydrogen radicals is from about 22 to about 30 mol%, relative in each case to the amount of substance or all amino groups in the homo-polyethylenimine.

9. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that the total quantity of the at least one emulsifier is from about 0.2 to about 10.0 wt% relative to the total weight of the cosmetic product.

10. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that the total quantity of the at least one oil component is from about 0.1 to about 15.0 wt%.

11. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that it contains at least one deodorant agent in a total quantity from about 0.0001 to about 15 wt%, preferably from about 0.5 to about 10 wt%, relative in each case to the total weight of the cosmetic product.

12. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that it contains an antioxidant in an amount of from about 0.01 to about 5.0 wt%.

13. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that it contains at least one thickening agent.

14. Antiperspirant cosmetic product according to any one of the preceding items, characterized in that it contains at least one further anion, preferably an organic anion, which is also preferably selected from the group consisting of citrate, lactate, tartrate and malate.

15. A non-therapeutic cosmetic method for preventing and/or reducing body odour and/or bodily perspiration, in which a cosmetic product according any one of items from about 1 to about 11 is applied to the skin, particularly the skin of the armpits, and remains on the skin for at least about 1 hour, preferably for at least about 2 hours, preferably for at least about 4 hours, particularly for at least about 6 hours.

[0011] For the purpose of the disclosure, the term “antiperspirant” is understood to refer to the inhibition or reduction of perspiration by the body’s sweat glands.

[0012] For the purpose of the disclosure, the term “halides and/or hydroxyhalides of aluminium and/or zirconium” is understood to refer particularly to chlorides, bromides and iodides of aluminium and zirconium, and to compositions with formulas AI(0H)_yX and Zr(OH)zX, wherein X in said formulas stands for a halide ion. The statement that according to the disclosure the cosmetic product contains no halides and/or hydroxyhalides of aluminium and/or zirconium means that the content thereof is less than about 0.5 wt%, preferably less than about 0.1 wt%, particularly preferably 0 wt%.

[0013] Unless otherwise indicated, percentage by weight values given in the present disclosure refer to the total quantity of the cosmetic product without any propellant present.

[0014] Essential for the purpose of the present disclosure is the presence of at least one branched homo-polyethylenimines (“PEI”“). Homo-polyethylenimines are typically constructed with the following general structural units and may be linear or branched.

[0015] Branched polyethylenimines may be described with the following schematic substructure formula, i.e. a section of the overall structure in which the ends are not shown, and the ratios between the primary, secondary and tertiary amino groups may vary.

H,N

[0016] The polyethylenimines may also have a branched stellate structure.

[0017] In aqueous solution, branched and unbranched homo-polyethylenimines have an alkaline pH value. In the acidic pH value range, the quaternisable amino groups are partly to completely quaternised.

[0018] Surprisingly, in the context of the of the present disclosure, it was found that certain branched homo-polyethylenimines exhibited excellent antiperspirant effect in an acidic to neutral pH value range and in combination with certain anions, particularly chloride ions. In particular, when an acid pH value was set using hydrochloric acid, so that chloride ions were present as anions, outstanding antiperspirant action was observed. Even with low application concentrations of such a PEI of about 3 wt%, the antiperspirant effect observed was comparable to that obtained with a 10 wt% aluminium chlorohydrate solution.

[0019] The homo-polyethylenimines used according to the disclosure are branched polyethylenimines which are unmodified, that is to say they do not have any substituents at the nitrogen atoms other than hydrogen radicals. For the purposes of the disclosure, it is further understood that the homo-polyethylenimines in question are constructed exclusively from ethyleneimine as the structural unit, and they contain no other monomers, such as other alkylene imine units, for example.

[0020] As was noted previously, branched homo-polyethylenimines may have different ratios between the primary, secondary and tertiary amino groups. The homopolyethylenimines that are used according to the disclosure are those which in an alkaline pHrange have a percentage of tertiary amino groups from about 20 mol% to about 35 mol% relative to the total quantity of the amino groups in the homo-polyethylenimine. Since the homo-polyethylenimines according to the disclosure are present in an acidic pH value range, the quaternisable amino groups are partially to completely quaternised. Therefore, in the present disclosure the percentage of tertiary amino groups in the homo-polyethylenimine is not defined, but rather the percentage of amino groups which have three non-hydrogen atom radicals is defined as from about 20 mol% to about 35 mol% relative to the amount of substance of all amino groups, that is to say quaternised and non quaternised amino groups in the homo-polyethylenimine (i.e. relative to the total of all groups having one, two and three non-hydrogen atom radicals). For the purposes of the disclosure, the percentage of amino groups with three non-hydrogen atom radicals is preferably 21 to 32 mol%, more preferably 22 to 30 mol%, relative in each case to the amount of substance of all amino groups in the homo-polyethylenimine.

[0021] According to the disclosure, the percentage of amino groups with one non-hydrogen radical (corresponding to primary amino groups with an alkaline pH value) is preferably from about 30 to about 45 mol%, more preferably from about 35 to about 42 mol%, relative in each case to the amount of substance of all amino groups in the homo-polyethylenimine.

[0022] According to the disclosure, the percentage of amino groups with two non-hydrogen radicals (corresponding to secondary amino groups with an alkaline pH value) is preferably from about 30 to about 45 mol%, more preferably from about 35 to about 40 mol%, still more preferably from about 34 to about 38 mol%, relative in each case to the amount of substance of all amino groups in the homo-polyethylenimine.

[0023] In particularly preferred cosmetic products according to the disclosure, the percentage of amino groups with one non-hydrogen radical (corresponding to primary amino groups with alkaline pH value) is from about 35 to about 42 mol%, the percentage of amino groups with two non-hydrogen radicals (corresponding to secondary amino groups with alkaline pH value) is from about 34 to about 38 mol% and the percentage of amino groups with three non-hydrogen radicals is from about 22 to about 30 mol%,relative in each case to the amount of substance of all amino groups in the homo-polyethylenimine.

[0024] The percentage of primary, secondary and tertiary amino groups relative to the amount of substance of all amino groups in the homo-polyethylenimine may be determined by NMR spectroscopy.

[0025] The essential feature for the purposes of the present disclosure is that the cosmetic product has a pH value that has been set in the acid range, from about 2.5 to about 7.5 (determined at 22 °C). The pH value of the of the cosmetic product according to the disclosure is preferably set to a range from about 2.5 to about 7.0, more preferably from about 3.0 to about 5.5, more preferably still from about 3.3 to about 4.5. As was noted earlier, aqueous solutions of unmodified homo-polyethylenimines have an alkaline pH value. In order to bring the pH value into the range claimed according to the disclosure, a pH adjuster is used. According to the disclosure, inorganic acids such as hydrochloric acid, phosphoric acid and/or sulfuric acid are particularly suitable for this. Accordingly, the cosmetic product according to the disclosure contains chloride ions, sulfate ions and/or phosphate ions respectively as inorganic anions, wherein chloride ions are particularly preferred. The best antiperspirant action was observed with chloride ions. In preferred embodiments, therefore, chloride is contained as the inorganic anion. The percentage of chloride ions is 10%, 30%, 50%, 95,0 wt% or more, more preferably from about 99.0 wt% to about 100 wt%, of all anions contained. According to the disclosure, hydrogen sulfate ions are also counted as sulfate ions. The phosphates according to the disclosure also include hydrogen phosphates and dihydrogen phosphates.

[0026] Some embodiments of the disclosure may contain at least one further anion besides the chloride, sulfate ions and/or phosphate ions. Inorganic anion or organic anions may be contained as further anions. The organic anions may be for example phosphonates, citrate, lactate, tartrate and/or malate. During the course of the present disclosure, it was found that if organic anions such as lactate and/or citrate are used exclusively, the little or no antiperspirant effect was obtained. In preferred embodiments, the cosmetic products therefore contain lactate and/or citrate in a total quantity of less than about 0.5 wt%, more preferably 0.1 wt% or less, more preferably still or 0 wt% relative to the total quantity of the cosmetic product.

[0027] In preferred embodiments of the disclosure, no anions other than chloride ions, sulfate ions and/or phosphate ions are contained.

[0028] According to the disclosure, the polyethylenimines contained in the cosmetic product have an average molecular weight Mw from about 300 to about 10,000 g/mol, preferably from about 500 to about 3,000 g/mol, more preferably from about 1,000 to about 2,000 g/mol. The average molecular weight Mw may be determined example by gel permeation chromatography (GPC) (Andrews P: “Estimation of the Molecular Weights of Proteins by Sephadex Gel-Filtration; Biochem. J., 1964, 91, pp 222 to 233).

[0029] The cosmetic product according to the disclosure contains the at least one homo polyethylenimine in a total quantity from about 0.1 to about 20 wt% relative to the total quantity of the cosmetic product. The at least one homo-polyethylenimine is more preferably present in a total quantity from about 0.5 to about 10 wt%, still more preferably from about 2.0 to about 7.0 wt%, most preferably from about 2.5 to about 5.0 wt%. Given the outstanding antiperspirant effect of the homo-polyethylenimine in the acid pH- range as chloride, sulfate and/or phosphate, particularly as chloride, excellent sweat inhibition may be obtained even with relatively low application concentrations thereof.

[0030] The antiperspirant effect is caused by an influence exerted on the sweat gland(s). For the purpose of the disclosure, influence on the sweat gland(s) is understood to refer to a mechanism the purpose of which is to prevent or reduce the excretion of sweat from the excretory duct.

[0031] Accordingly, the cosmetic product according to the disclosure contains at least one emulsifier. The cosmetic product of the present disclosure may be formulated as an oil-inwater emulsion or as a water-in-oil emulsion. Within the scope of the of the present disclosure, it is preferable if the antiperspirant cosmetic product is embodied as an oil-in-water emulsion. In this case, the cosmetic product according to the disclosure is preferably sprayed as a propellant-free pump spray or squeeze spray, or applied as a roll-on. Within the scope of the present disclosure, however, the antiperspirant cosmetic product may also be embodied as a water-in-oil emulsion. In this context, it may particularly be a sprayable water-in-oil emulsion, which may be sprayed with the aid of a propellant.

[0032] The antiperspirant cosmetic product of the present disclosure may be embodied as an aqueous, aqueous-alcoholic, aqueous-glycolic solution and/or as an emulsion. The cosmetic product may be embodied as a thin product or as a product with adapted viscosity (flow behaviour).

[0033] The at least one emulsifier is contained in a total quantity of from about 0.05 to about 10.0 wt%, preferably 0.2 to 5.0 wt%, more preferably from about 1.0 to about 4.0 wt% still more preferably from about 1.5 to about 3,0 wt%.

[0034] Suitable emulsifiers according to the disclosure may be selected from anionic, cationic, non-ionic, amphoteric, particularly ampholytic and zwitterionic emulsifiers. However, since according to the disclosure the homo-polyethylenimine is present together with certain anions, particularly chloride, non-ionic emulsifiers are particularly preferred according to the disclosure. In preferred embodiments, the cosmetic product according to the disclosure therefore only contains non-ionic emulsifiers.

[0035] Oil-in-water emulsifiers:

The cosmetic products according to the disclosure that are formulated as emulsions, particularly oil-in-water emulsions, preferably contain at least one non-ionic oil-in-water emulsifier with a HLB value from more than from about 7 to about 20. Such emulsifiers are generally known to the person skilled in the art. The HLB value for ethoxylated products is calculated according to the formula HLB = (100 - L):5, wherein L is the weight proportion of the lipophilic groups, that is to say the fatty alkyl or fatty acyl groups in the e ethylene oxide adducts, expressed as a percentage by weight. In the selection of suitable non-ionic oil-inwater emulsifiers according to the disclosure, it is particularly preferred to use a mixture of non-ionic oil-in-water emulsifiers in order to be able to adjust the stability of the compositions according to the disclosure most effectively. The individual emulsifier components then contribute an amount to the total HLB value or the average HLB value of the oil-in-water emulsifier mixture according to their quantity share of the total quantity of the oil-in-water emulsifiers. According to the disclosure, the average HLB value of the oil-in-water emulsifier mixture is 10-19, preferably 12-18 and particularly preferably 14-17. In order to obtain average HLB values of this order, oil-in-water emulsifiers from the HLB value ranges 10-14, 14-16 and optionally 16-19 are preferably combined with each other. Of course, the oil-inwater emulsifier mixtures may also contain non-ionic emulsifiers with HLB values in the range from > 7-10 and 19-20; such emulsifier mixtures may also be preferred according to the disclosure. But in another preferred embodiment, the deodorant or antiperspirant compositions according to the disclosure may only contain a single oil-in-water emulsifier with an HLB value in the range of 10-19. Preferred deodorant or antiperspirant compositions according to the disclosure contain at least one non-ionic oil-in-water emulsifier which is selected from ethoxylated C8-C24 alkanols with on average 10-100 mol ethylene oxide per mol, ethoxylated C8-C24 carboxylic acids with on average 10-100 mol ethylene oxide per mol, silicone copolyols with ethylene oxide units or with ethylene oxide and propylene oxide units, alkylmono- and -oligoglycosides with 8-22 carbon atoms in the alkyl radical and the ethoxylated analogues thereof, ethoxylated sterols, partial esters of polyglycerols with 2 to 10 glycerol units and esterified with 1-4 saturated or unsaturated, linear or branched, optionally hydroxylated C8-C30 fatty acid radicals provided they have a HLB value higher than 7, and mixtures of the abovementioned substances. The ethoxylated C8-C24- alkanols have the formula R¹O(CH2CH2O)nH, wherein R¹ stands for a linear or branched alkyl and/or alkenyl radical with 8-24 carbon atoms, and n is the average number of ethylene oxide units per molecule, for numbers from 10-100, preferably 10-30 mol ethylene oxide for 1 mol capryl 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 technical mixtures thereof. Adducts of 10-100 mol ethylene oxide to technical fatty alcohols with 12-18 carbon atoms, such as coconut, palm, palm kernel or tallow fatty alcohol are suitable.

[0036] Preferred cosmetic products contain a non-ionic emulsifier from the group of polyalkylene glycol ether, preferably from the group of alkoxylated C8-C24 alkanols with on average 10-100 Mol alkylene oxide per mol, preferably from the group of ethoxylated C12-C18 alkanols with on average 10-30 mol ethylene oxide per mol.

[0037] The ethoxylated C8-C24 carboxylic acids have the formula R^OCFbCFbjnOH, wherein R¹ stands for a linear or branched saturated or unsaturated acyl radical with 8-24 carbon atoms, and n is the average number of ethylene oxide units per molecule, for numbers from 10-100, preferably 10-30 mol ethylene oxide for 1 mol caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, cetyl acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, arachic acid, gadoleic acid, behenic acid, erucic acid and brassidic acid and technical mixtures thereof. Adducts of 10-100 mol ethylene oxide to form technical fatty acids with 12-18 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. Particularly favoured are the C12-C18 alkanols or the C12-C18 carboxylic acids each having 10-30 units ethylene oxide per molecule and mixtures of these substances, particularly Ceteth-12, Ceteth-20, Ceteth-30, Steareth-12, Steareth-20, Steareth-30, Laureth-12 and Beheneth-20. C8-C22 alkylmono- and oligoglycosides are also preferred for use. C8-C22 alkylmono- and -oligoglycosides represent known,standard commercial tensides and emulsifiers. These are manufactured particularly by reacting glucose or oligosaccharides with primary alcohols having 8-22 carbon atoms. Regarding the glycoside radical, both monoglycosides in which a cyclic sugar radical is bound glycosidically to the fatty alcohol and oligomeric glycosides with a degree of oligomerisation up to about 8, preferably 1-2, are suitable. The degree of oligomerisation is a statistical average which is based on a typical homologue distribution for such technical products. Products which are sold commercially under the trade name Plantacare® contain a glucosidically bound Cs-Ci6 alkyl group on an oligoglucoside radical, the average degree of oligomerisation of which is in the range 1-2, particularly 1.1-1.4. Particularly preferred CsC22 alkylmono- 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 acyl glucamides derived from glucamine are also suitable for use as non-ionic oil-in-water emulsifiers. Ethoxylated sterols, particularly ethoxylated soy sterols, also represent suitable oil-in-water-emulsifiers according to the disclosure. The degree of ethoxylation must be greater than 5, preferably at least about 10, in order to produce an HLB value higher than from about 7 to about 20. Suitable commercial products are for example PEG-10 soy sterol, PEG-16 soy sterol and PEG-25 soy sterol. Also preferred for use are partial esters of polyglycerols with from about 2 to about 10 glycerol units and esterified with from about 1 to about 4 saturated or unsaturated, linear or branched, optionally hydroxylated C8-C30 fatty acid radicals, provided they have a HLB value in the range from more than from about 7 to about 20. Particularly preferred are diglycerol monocaprylate, diglycerol monocaprate, diglycerol monolaurate, triglycerol monocaprylate, triglycerol monocaprate, triglycerol monolaurate, tetraglycerol monocaprylate, tetraglycerol monocaprate, tetraglycerol monolaurate, pentaglycerol monocaprylate, pentaglycerol monocaprate, pentaglycerol monolaurate, hexaglycerol monocaprylate, hexaglycerol monocaprate, hexaglycerol monolaurate, hexaglycerol monomyristate, hexaglycerol monostearate, decaglycerol monocaprylate, decaglycerol monocaprate, decaglycerol monolaurate, decaglycerol monomyristate, decaglycerol monoisostearate, decaglycerol monostearate, decaglycerol monooleate, decaglycerol monohydroxystearate, decaglycerol dicaprylate, decaglycerol dicaprate, decaglycerol dilaurate, decaglycerol dimyristate, decaglycerol diisostearate, decaglycerol distearate, decaglycerol dioleate, decaglycerol dihydroxystearate, decaglycerol tricaprylate, decaglycerol tricaprate, decaglycerol trilaurate, decaglycerol trimyristate, decaglycerol triisostearate, decaglycerol tristearate, decaglycerol trioleate and decaglycerol trihydroxystearate. Further particularly suitable oil-in-water emulsifiers are polyethylene glycol derivatatives of hydrogenated castor oil (PEGHydrogenated Castor Oil). Particularly preferred deodorant or antiperspirant compositions according to the disclosure are characterized in that the non-ionic oil-in-water-emulsifier is contained in a total quantity of 0.5-10 wt%, particularly preferably 1-4 wt% and exceptionally preferably 1.5-3 wt% relative to the total composition.

[0038] Water-in-oil emulsifiers:

Preferred cosmetic products according to the disclosure preferably also contain at least one non-ionic water-in-oil emulsifier with a HLB value greater than 1.0 and less than/equal to 7.0, selected from the mono- and diesters of ethylene glycol and the mono-, di-, tri- and tetraesters of pentaerythritol with linear saturated fatty acids having 12-30, particularly 14-22 carbon atoms, which may be hydroxylated, and mixtures thereof, as consistency enhancers and/or water retention agents. Preferred according to the disclosure are the mono- and diesters. C12C3o-fatty acid radicals that are preferred according to the disclosure are selected from radicals of lauric acid, myristic acid, palmitic acid, stearic acid, arachic acid and behenic acid; particularly preferred is the stearic acid radical. Particularly preferred non-ionic water-in-oil emulsifiers with a HLB value greater than 1.0 and less than/equal to 7.0 according to the disclosure are selected from pentaerythrityl monostearate, pentaerythrityl distearate, pentaerythrityl tristearate, pentaerythrityl tetrastearate, ethylene glycol monostearate, ethylene glycol distearate and mixtures thereof. Particularly preferred water-in-oil-emulsifiers with a HLB value greater than 1.0 and less than/equal to 7.0 according to the disclosure are commercially available for example as products under the trade names Cutina® PES (INCI: pentaerythrityl distearate), Cutina® AGS (INCI: glycol distearate) or Cutina® EGMS (INCI: glycol stearate). These commercial products are already mixtures of mono- and diesters (in the case of the pentaerythrityl esters, tri- and tetraesters are also included). It may be preferred according to the disclosure to use only one water-in-oil-emulsifier. In another preferred embodiment, the compositions according to the disclosure contain mixtures, particularly technical mixtures, which contain at least two water-in-oil emulsifiers. The term technical mixture is understood to represent a commercial product such as Cutina® PES for example. Apart from the abovementioned water-in-oil emulsifiers based on ethylene glycol or pentaerythrityl esters, in a preferred embodiment at least one further non-ionic water-in-oilemulsifier with a HLB value greater than 1.0 and less than/equal to 7.0 may also be contained, which should however preferably not constitute a more than 80% of the total weight of nonionic water-in-oil-emulsifiers having a HLB value greater than 1.0 and less than/equal to 7.0. In a particularly preferred embodiment, the compositions according to the disclosure contain the at least one further water-in-oil-emulsifier with a HLB value greater than 1.0 and less than/equal to 7.0 only in a weight proportion not exceeding 5%, or they are entirely without additional water-in-oil emulsifiers. The HLB value may also be calculated for ethoxylated adducts as described earlier.

Substances which are preferably suitable for use as water-in-oil-emulsifiers are:

- linear saturated alkanols with 12-30 carbon atoms, particularly with 16-22 carbon atoms, in particular cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol and lanolin alcohol or mixtures of these alcohols, such as are commercially available for the technical hydrogenation of vegetable and animal fatty acids,

- esters and particularly partial esters from a polyol with 3-6 C-atoms and linear saturated and unsaturated fatty acids with 12-30, particularly 14-22 C atoms, which may be branched and or hydroxylated. Such esters or partial esters are for example the mono- and diesters of glycerol or the monoesters of propylene glycol with linear or branched, saturated and unsaturated C-Ccarboxylic acids, which may be hydroxylated, particularly those with palmitic, isostearic and stearic acid, which may be sorbitan mono-, di- or triesters of linear saturated and unsaturated C-C-carboxylic acids, which may be hydroxylated, particularly those of myristic acid, palmitic acid, stearic acid or of mixtures of these fatty acids and the methylglucose mono- and diesters of linear saturated and unsaturated C-C-carboxylic acids, which may be hydroxylated;

- sterole, that is to say steroids which have a hydroxyl group on the C3 atom of the steroid core structure and are isolated from both animal tissue (zoosterols, e.g., cholesterol, lanosterol) and from plants (phytosterols, e.g., ergosterol, stigmasterol, sitosterol) and from fungi and yeasts (mycosterols) and which may have low ethoxylation values (1-5 EO);

- alkanols and carboxylic acids, each having 8-24 C atoms, particularly with 16-22 C atoms, in der the alkyl group and 1-4 ethylene oxide units per molecule which have a HLB value greater than 1.0 and less than/equal to 7.0,

- glycerol monoether saturated and/or unsaturated, branched and/or unbranched alcohols with a chain length of 8-30, particularly 12-18 carbon atoms.

- partial esters of polyglycerols with n = 2 to 10 glycerol units and esterified with from about 1 to about 5 saturated or unsaturated, linear or branched, optionally hydroxylated C-C fatty acid radicals, provided that have a HLB value less than/equal to 7,

- and mixtures of the aforementioned substances.

[0039] It may be preferable to use only a single additional water-in-oil emulsifier. In another preferred embodiment, the compositions according to the disclosure contain mixtures, particularly technical mixtures, or at least two additional water-in-oil emulsifiers. A technical mixture is understood to be for example a commmercially available product such as Cutina® GMS, which is a mixture of glyceryl monostearate and glyceryl distearate. Additional waterin-oil emulsifiers that may be used particularly advantageously are stearyl alcohol, cetyl alcohol, glyceryl monostearate, particularly in the form of the commercial products Cutina® GMS and Cutina® MD (ex Cognis), glyceryl distearate, glyceryl monocaprinate, glyceryl monocaprylate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monohydroxystearate, glyceryl monooleate, glyceryl monolanolate, glyceryl dimyristate, glyceryl dipalmitate, glyceryl dioleate, propylene glycol monostearate, propylene glycol monolaurate, sorbitan monocaprylate, sorbitan monolaurate, sorbitan monomyristate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquistearate, sorbitan distearate, sorbitan dioleate, sorbitan sesquioleate, sucrose distearate, arachidyl alcohol, behenyl alcohol, polyethylene glycol(2)stearylether (Steareth-2), Steareth-5, Oleth-2, diglycerol monostearate, diglycerol monoisostearate, diglycerol monooleate, diglycerol dihydroxystearate, diglycerol distearate, diglycerol dioleate, triglycerol distearate, tetraglycerol monostearate, tetraglycerol distearate, tetraglycerol tristearate, decaglycerol pentastearate, decaglycerol pentahydroxystearate, decaglycerol pentaisostearate, decaglycerol pentaoleate, soy sterol, PEG-1 soy sterol, PEG-5 soy sterol, PEG-2-monolaurate and PEG-2-monostearate.

[0040] Preferred deodorant or antiperspirant compositions according to the disclosure are characterized in that they contain at least one water-in-oil emulsifier in a total quantity of about 0.1- about 10 wt%, preferably about 0.5- about 8.0 wt%, and particularly preferably about 1- about 4 wt% relative to the total composition. Quantities of about 2-about 3 wt% relative to the total weight of the composition may also be exceptionally preferable according to the disclosure. The HLB values may be calculated using the Griffin method. If different information for the HLB value of a substance are given in the literature, the HLB value which is closest to the value calculated by the Griffin method should be used for the teaching according to the disclosure. If it is not possible to determine an unequivocal HLB value in this way, the HLB value stated by the manufacturer of the emulsifier is to be used for the teaching according to the disclosure. If this is also not possible, the HLB value must be determined experimentally.

[0041] A particularly preferred group of water-in-oil emulsifiers according to the disclosure is represented by the poly-(C2-C3)alkyleneglycol-modified silicones, which formerly had the INCI designation Dimethicone Copolyol, and now have the INCI designations PEG-x Dimethicone (with x = 2-20, preferably 3-17, particularly preferred 1112), Bis-PEG-y Dimethicone (with y = 3-25, preferably 4-20), PEG/PPG a/b Dimethicone (wherein a and b are independent of one another and stand for numbers from 2-30, preferably

3- 30 and particularly preferably 12-20, most particularly 14-18), Bis-PEG/PPG-c/d Dimethicone (wherein c and d are independent of one another and stand for numbers from 1025, preferably 14-20 and particularly preferably 14-16) and Bis-PEG/PPG-e/f PEG/PPG g/h Dimethicone (wherein e, f, g and h are independent of one another and stand for numbers from 10-20, preferably 14-18 and particularly preferably 16). Particularly preferred are PEG/PPG18/18 Dimethicone, which is available commercially in a 1:9 mixture with cyclomethicone as DC 3225 C or DC 5225 C, or as a mixture with dimethicone as DC 5227 DM, PEG/PPG-4/12 Dimethicone, which is available commercially under the name Abil B 8852, and BisPEG/PPG-14/14 Dimethicone, which is available commercially in a mixture with cyclomethicone under the name Abil EM 97 (Goldschmidt), Bis-PEG/PPG-20/20 Dimethicone, which is available commercially under the name Abil B 8832, PEG/PPG-5/3 Trisiloxane (Silsoft 305), and PEG/PPG-20/23 Dimethicone (Silsoft 430 and Silsoft 440). Further preferred W/O emulsifiers according to the disclosure are Poly-(C2-C3) alkyleneglycol-modified silicones which are hydrophobically modified with C4-C18 alkyl groups, particularly preferably Cetyl PEG/PPG-10/1 Dimethicone (formerly: Cetyl Dimethicone Copolyol, available commercially as Abil EM 90 or in a mixture of polyglyceryl-

4- isostearate, Cetyl PEG/PPG-10/1 Dimethicone and hexyl laurate under the trade name Abil WE 09), also Alkyl Methicone Copolyols.

[0042] The cosmetic products of the present disclosure further contain at least one oil component in a total quantity from about 0.05 to about 15 wt%. The term oil component is understood to comprise cosmetic oils according to the disclosure. For the purposes of the present disclosure, the term “cosmetic oil” is understood to refer to an oil which is suitable for use in cosmetics, which is not miscible with water in all quantities. The cosmetic oil used according to the disclosures neither a fragrance nor an essential oil.

[0043] The cosmetic products according to the disclosure contain at least one substance as a cosmetic oil which is selected from the group of cosmetic oils that are liquid at 20 °C and 1013 hPa.

[0044] Within the scope of the present disclosure, the cosmetic oil which is liquid at 20 °C and 1013 hPa is selected from the group of (i) volatile cyclic sillicone oils, particularly cyclic and linear silicone oils; (ii) volatile non-silicone oils, particularly liquid paraffin oils and isoparaffin oils; (iii) non-volatile silicone oils; (iv) non-volatile non-silicone oils; and (v) mixtures thereof.

[0045] According to the disclosure, the term “volatile oil” refers to oils that exhibit a vapour pressure from about 2.66 Pa to about 40,000 Pa (from about 0.02 to about 300 mm Hg), preferably from about 10 to about 12,000 Pa (from about 0.1 to about 90 mm Hg), more preferably from about 13 to about 3,000 Pa (from about 0.1 to about 23 mm Hg), particularly from about 15 to about 500 Pa (from about 0.1 to about 4 mm Hg) at 20 °C and under an ambient pressure of 1,013 hPa.

[0046] Also, for the purposes of the disclosure the term “non-volatile oils” refers to oils that exhibit a vapour pressure less than about 2.66 Pa (0.02 mm Hg) at 20 °C and under an ambient pressure of 1,013 hPa.

[0047] It may be preferable according to the disclosure to use mixtures of volatile silicone oils and volatile non-silicone oils in the antiperspirant cosmetic products according to the disclosure, since this gives rise to a drier skin sensation. It may also be preferable within the scope of the present disclosure if the antiperspirant cosmetic products contain a non-volatile silicone oil and/or a non-volatile non-silicone oil to mask insoluble components such as talcum or ingredients which have begun to dry on the skin.

[0048] The use of mixtures of non-volatile and volatile cosmetic oils is particularly preferred, since this makes it possible to adjust parameters such as skin sensation, visibility of the residue and stability of the antiperspirant cosmetic product according to the disclosure, so that the product may be better adapted to the needs of consumers.

[0049] Volatile cosmetic oils are usually selected from cyclic silicone oils with INCI designation Cyclomethicone. The INCI designation is understood in particular to encompass cyclotrisiloxane (hexamethyl cyclotrisiloxane), cyclotetrasiloxane (octamethyl cyclotetrasiloxane), cyclopentasiloxane (decamethyl cyclopentasiloxane) and cyclohexasiloxane (dodecamethyl cyclohexasiloxane). These oils exhibit a vapour pressure of about 13-15 Pa at 20 °C. Cyclomethicones known in the related art to be well suited for use as oils for cosmetic compositions, particularly for deodorising compositions, such as sprays and sticks. However, given their persistence in the environment it may be preferable for the purposes of the disclosure if cyclomethicones are not used. In an especially preferred embodiment, the compositions according to the disclosure which are used according to the disclosure contain 0 to less than about 1 wt%, preferably not more than about 0.1 wt% cyclomethicone relative to the weight of the composition, wherein any propellant present is not taken into account. A cyclomethicone substitute that is preferred according to the disclosure is a mixture of C13-C16 isoparaffins, C12-C14 isoparaffins and C13-C15 alkanes with a viscosity in the range from about 2 to about 6 mPas at 25 °C and which has a vapour pressure in the range from abour 10 to about 150 Pa, preferably from about 100 to about 150 Pa, at 20 °C. Such a mixture is available from the company Presperse Inc. for example with the name SiClone SR-5. Further preferred volatile silicone oils are selected from volatile linear silicone oils, particularly volatile linear silicone oils with 2-10 siloxane units, such as hexamethyl disiloxane (L2), octamethyl trisiloxane (L3), decamethyl tetrasiloxane (L4), such as are contained in the commercial products DC 2-1184, Dow Corning® 200 (0,65 cSt) and Dow Corning® 200 (1,5 cSt) from Dow Corning, and low molecular phenyl trimethicone with a vapour pressure of about 2,000 Pa at 20 °C, such as is available under the name Baysilone Fluid PD 5 from GE Bayer Silicones/Momentive for example. Preferred antiperspirant compositions according to the disclosure contain at least one volatile silicone oil, which may be cyclic or linear to promote a drier skin sensation and faster release of the active ingredients. Further preferred products according to the disclosure contain at least one volatile non-silicone oil in order favour a drier skin sensation and faster release of the active ingredients. Preferred volatile non-silicone oils are selected from Cs-Ci6 isoparaffins, particularly from isononane, isodecane, isoundecane, isododecane, isotridecane, isotetradecane, isopentadecane and isohexadecane, and mixtures thereof. Preferred are C10-C13 isoparaffin mixtures, particularly those with a vapour pressure of about 10- about 400 Pa, preferably about 13- about 100 Pa at °C. Further products according to the disclosure preferably contain at least one non-volatile cosmetic oil selected from non-volatile silicone oils and non-volatile non-silicone oils. Residues of components that are insoluble in the composition, such as antiperspirant agents (= antiperspirant aluminium salts) or talcum may be masked successfully with a non-volatile oil. Moreover, with a mixture of various ouls, which particularly includes non-volatile and volatile oil, it is possible to fine-tune parameters such as skin sensation, residue visibility and stability of the composition according to the disclosure, so that it can be better adapted to the consumers’s needs. Preferred products according to the disclosure are characterized in that the cosmetic oil, which is not a fragrance or an essential oil, comprises at least one volatile oil with a vapour pressure from about 10- about 3,000 Pa at 20 °C, and which is neither a fragrance nor an essential oil, in a total quantity from about 0.1- about 100 wt%, particularly preferable about 10- about 90 wt%, relative in each case to the total weight of the cosmetic oils.

[0050] Of course it is also possible to formulate products according to the disclosure with a low percentage of volatile oils relative to the total weight of the product, or even without volatile oils. Particularly preferred oils according to the disclosure are esters of the linear or branched saturated or unsaturated fatty alcohols with 2-30 carbon atoms with linear or branched saturated or unsaturated fatty acids with 2-30 carbon atoms, which may be hydroxylated. It should be noted on this subject that some esters linear or branched C1-C22 alkanols or C14-C22 alkenols and some triesters of glycerol with linear or branched C2-C22 carboxylic acids, which may be saturated or unsaturated, are solid under normal conditions, such as cetyl stearate or glycerol tristearate (= stearol). According to the disclosure, these esters which are solid under normal conditions do not represent any cosmetic oils because these do not fultil the condition of being “liquid under normal conditions”. The determination as to whether such an ester is liquid or solid under normal conditions lies within the scope of the general knowledge of the person skilled in the art. Preferred are esters of the linear or branched saturated fatty alcohols with 2-18 carbon atoms with linear or branched saturated or unsaturated fatty acids with 3-18 carbon atoms, which may be hydroxylated. Preferred examples of these are isopropyl palmitate, isopropyl stearate, isopropyl myristate, 2 hexyldecyl stearate, 2-hexyldecyl laurate, isodecyl neopentanoate, isononyl isononanoate, 2ethylhexyl palmitate and 2-ethylhexyl stearate. Also preferred are isopropyl isostearate, isopropyl oleate, isooctyl stearate, isononyl stearate, isocetyl stearate, isononyl isononanoate, isotridecyl isononanoate, cetearyl isononanoate, 2-ethylhexyl laurate, 2-ethylhexyl isostearate, 2-ethylhexyl cocoate, 2-octyldodecyl palmitate, butyloctanoic acid-2-butyl octanoate, diisotridecyl acetate, n-butyl stearats, n-hexyl laurate, n-decyl oleate, oleyl oleate, oleyl erucate, erucyl oleate, erucyl erucate, ethylene glycol dioleate, ethylene glycol dipalmitate, nhexyl laurate, n-decyl oleate, oleyl oleate, oleyl erucate, erucyl oleate, C12-C15 alkyl lactate and di-Cn-C 13-alkyl malate as well as the benzoic acid esters of linear or branched C8-22 alkanols. Particularly preferred are benzoic acid C12-C15 alkyl esters, which are available as commercial products. Further oil components which are preferred according to the disclosure are selected from the C8-C22 fatty alcohol esters of monovalent or polyvalent C2-C7 hydroxy carboxylic acids, particularly the esters of glycolic acid, lactic acid, malic acid, tartaric acid, citric acid and salicylic acid. Such esters based on linear C14/15 alkanols, e.g., C12-C15 alkyl lactate, and on Cl2/13 alkanols which are branched in 2 positions can be purchased under the trade name Cosmacol® from Nordmann, Rassmann GmbH & Co, Hamburg, particularly the commercial substances Cosmacol® ESI, Cosmacol® EMI and Cosmacol® ETI, Finsolv® TN (C12-C15 alkyl benzoate), and benzoic acid isostearyl esters may be purchased as Finsolv® SB, 2-ethylhexyl benzoate, available for example as Finsolv® EB, and benzoic acid-2octyldodecyl esters, available for example as Finsolv® BOD.

[0051] A further particularly preferred ester oil is triethyl citrate.

[0052] Preferred cosmetic products are characterized in that these cosmetic products contain an ester of a C3-C30 carboxylic acid, preferably an ester from the group 2-ethylhexyl palmitate, isopropyl palmitate and triethyl citrate.

[0053] Products that are preferred according to the disclosure may contain branched saturated or unsaturated fatty alcohols with 6-30 carbon atoms. These are also often called Guerbet alcohols, because they can be obtained according to the Guerbet reaction. Preferred alcohol oils are 2-hexyldecanol, 2-octyldodecanol and 2-ethylhexyl alcohol. Also preferred is isostearylalcohol. Further preferred non-volatile oils are selected from mixtures of Guerbet alcohols and Guerbet alcohol esters, e.g., 2-hexyldecanol and 2-hexyldecyl laurate. The expression “triglyceride” used in the following text denotes “glycerol triesters”. Other nonvolatile oils preferred according to the disclosure are selected from the triglycerides of linear or branched, saturated or unsaturated, optionally hydroxylated C8-30 fatty acids, provided these are liquid under normal conditions. The use of natural oils, for example soy oil, cottonseed oil, sunflower oil, palm oil, palm kernel oil, linseed oil, almond oil, castor oil, corn oil, rapeseed oil, olive oil, sesame oil, safflower oil, wheatgerm oil, peach stone oil and the liquid fractions of coconut oil and the like may be particularly suitable. Particularly preferred are synthetic triglyceride oils, particularly capric/caprylic triglycerides, e.g., the commercial products Myritol® 318 or Myritol® 331 (BASF/ Cognis) with unbranched fatty acid radicals, and glyceryl triisostearol and glyceryl tri(2-ethylhexanoate) with branched fatty acid radicals. Such triglyceride oil preferably constitutes less than about 50 wt% of the total weight of all cosmetic oils in the compositions according to the disclosure. Particularly preferably, the total weight of triglyceride oils constitutes about 0.5- about 10 wt%, preferably about 1- about 5 wt% relative in each case to the total composition, without taking into account any propellant present. Further particularly preferred non-volatile non-silicone oils according to the disclosure are selected from the di carboxylic acid esters of linear or branched C2-C10 alkanols, particularly diisopropyl adipate, 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 non-volatile non-silicone oils which are particularly preferred according to the disclosure are selected from the adducts from 1 to 5 propylene oxide units with monovalent or polyvalent Cs-22 alkanols such as octanol, decanol, decanediol, lauryl alcohol, myristyl alcohol and stearyl alcohol, e.g., PPG-2-myristyl ether and PPG-3-myristyl ether. Further particularly preferred non-volatile non-silicone oils according to the disclosure are selected from the adducts from at least 6 ethylene oxide and/or propylene oxide units with monovalent or polyvalent C3-22 alkanols such as glycerol, butanol, butanediol, myristyl alcohol and stearyl alcohol, which may be esterified if desired, e.g., PPG-14-butylether, PPG-9 butylether, PPG-10-butanediol and PPG-15-stearylether. Further particularly preferred nonvolatile non-silicone oils according to the disclosure are selected from the symmetrical, nonsymmetrical or cyclic esters of carbonic acid with C6-C20-alcohols, e.g., di-n-caprylyl carbonate (Cetiol® CC) or di-(2-ethylhexyl)carbonate (Tegosoft DEC). On the other hand, esters of carbonic acid with C1-C5 alcohols, e.g., glycerol carbonate or propylene carbonate, are not suitable compounds for use as cosmetic oil. Other oils that may be used for preference according to the disclosure are selected from the esters of dimers of unsaturated C12-C22 fatty acids (dimer fatty acids) with monovalent linear, branched or cyclic C2-C18 alkanols or with polyvalent or with polyvalent linear or branched C2-C6 alkanols. The total weight of dimer fatty acid esters is particularly preferably about 0.1- about 10 wt%, preferably about 1- about 5 wt%, relative in each case to the total composition, without taking into account any propellant present. Further cosmetic oils which are particularly preferred according to the disclosure are selected from non-volatile silicone oils. Preferred non-volatile silicone oils according to the disclosure are selected from linear polyalkyl siloxanes with a kinematic viscosity of at least from about 5 cSt to about 2000 cSt at 25 °C, particularly selected from linear poly dimethyl siloxanes having a kinematic viscosity of from about 5 cSt to about 2000 cSt at 25 °C, preferably from about 10 to about 350 cSt, particularly preferably 50-100 cSt, such as are available commercially for example under the trade names Dow Corning® 200 or Xiameter PMX from Dow Corning and Xiameter respectively. Further preferred non-volatile silicone oils are phenyltrimethicone with a kinematic viscosity of from about 10 to about 100 cSt, preferably about 15- about 30 cSt at 25 °C, and cetyldimethicone. Preferred natural and synthetic carbohydrates according to the disclosure are selected from paraffin oils, isohexadecane, isoeicosane, polyisobutenes and polydecenes, which are available commercially under the name Emery® 3004, 3006, 3010 or under the name Ethylflo® from Albemarle, or Nexbase® 2004G from Nestle, and l,3-di-(2-ethylhexyl)-cyclohexane.

[0054] Particularly preferred mixtures according to the disclosure are free from volatile silicones and/or alkanes (linear /branched).

[0055] The cosmetic products according to the disclosure may further contain at least one fragrancing substance. Within the meaning of the present disclosure, the term “fragrancing substances” is understood to refer to substances having a molar mass from about 74 to about 300 g/mol which have at least one osmophoric group in the molecule and have a smell and/or taste, i.e., they are able to stimulate the receptors in the hair cells of the olfactory system. Osmophoric groups are groups that are bound covalently to the molecular structure in the form of hydroxy groups, formyl groups, oxo-groups, alkoxy carbonyl groups, nitrile groups, nitrogroups, azide groups etc. In this context, the term “fragrancing substances” within the meaning of the present disclosure also embraces perfume oils, perfumes or perfume oil components which are liquid at 20 °C and 1013 hPa. However, mixtures of various fragrancing substances are combined to produce an attractive scent.

[0056] Particularly pleasant smelling antiperspirant cosmetic products according to the disclosure are obtained if the at least one fragrancing substance is contained in a total quantity from about 0.001 to about 10 wt%, preferably from about 0.05 to about 9 wt%, more preferably from about 0.01 to about 8 wt%, particularly preferably from about 0.1 to about 7 wt%, most preferably from about 0.2 to about 6 wt%, particularly from about 0.2 to about 2 wt% relative to the total weight of the antiperspirant cosmetic product.

Perfume oils may be present as free oil and/or in encapsulated form.

[0057] The antiperspirant cosmetic products according to the disclosure may also contain a wax. For the purposes of the present disclosure, the term “wax” is understood to denote substances that are kneadable or solid to friably hard at 20 °C, have a coarse to fine crystalline structure and a translucent to opaque colouring but are not vitreous. These substances also melt without decomposing above 25 °C, are slightly liquid (not viscous) slightly above the melting point, have a strongly temperature-dependent consistency and solubility and are polishable with light pressure.

[0058] This wax is preferably selected from the group of (i) fatty acid glycerol mono-, -diand -triesters; (ii) Butyrospermum Parkii (shea butter); (iii) esters of saturated, monovalent CsCi8 alcohols with saturated C12-C18 monocarboxylic acids; (iv) linear, primary C12-C24 alkanols; (v) esters from a saturated, monovalent C16-C60 alkanol and a saturated C8-C36 mono carboxylic acid; (vi) glycerol triesters from saturated linear C12-C30 carboxylic acids, which may be hydroxylated; (vii) natural vegetable waxes; (viii) animal waxes; (ix) synthetic waxes; and (x) mixtures thereof. Waxes that may be used for preference in the context of the present disclosure are disclosed in patent application DE 10 2012 222 692 Al.

[0059] In the context of the present disclosure, it is preferable if the wax is included in a total quantity from about 0.01 to about 30 wt%, particularly from about 6 to about 25 wt% relative to the total weight of the antiperspirant cosmetic product.

[0060] According to one embodiment of the present disclosure, it may be provided that the antiperspirant cosmetic products according to the disclosure contain a propellant in a total quantity from about 0.1 to about 99 wt% relative to the total weight of the antiperspirant cosmetic product. If the antiperspirant cosmetic products according to the disclosure contain a propellant, it is preferably present in a total quantity from about 1 to about 98 wt%, preferably from about 20 to about 90 wt%, more preferably from about 30 to about 85 wt%, particularly from about 40 to about 75 wt% relative to the total weight of the antiperspirant cosmetic product. In this case, the cosmetic products according to the disclosure are prepared in the form of aerosols which are propelled by means of a propellant gas. Preferred propellants (propellant gases) are propane, propene, n-butane, iso-butane, iso-butene, n-pentane, pentene, iso-pentane, iso-pentene, methane, ethane,dimethylether, nitrogen, air, oxygen, nitrous oxide, 1,1,1,3- tetrafluoroethane, heptafluoro-n-propan, perfluoroethane, monochiorodifluoromethane, 1,1-difluoroethane, tetrafluoropropene, both individually and in mixtures thereof. Hydrophilic propellant gases such as carbon dioxide may also be used advantageously within the scope of the present disclosure, if the selected fraction of hydrophilic gases is low, and lipophilic propellant gas (e.g., propane/butane) represents the major component. Particularly preferred are propane, n-butane, iso-butane and mixtures of these propellant gases. It has been found that the use of n-butane as the sole propellant gas may be particularly preferred according to the disclosure.

[0061] It is also preferable according to the disclosure if the antiperspirant cosmetic product additionally contains at least one preservative. Preferred preservatives according to the disclosure are formaldehyde separators iodopropinyl butylcarbamates, parabenes, phenoxyethanol, ethanol, benzoic acid and salts thereof, dibromdicyanobutane, 2-brom-2nitro-propane-l,3-diol, imidazolidinyl urea, 5-chloro-2-methyl-4-isothiazolin-3-one, 2chloroacetamide, benzalkonium chloride, benzyl alcohol, salicylic acid and salicylates. Further preservatives that are usable within the scope of the present disclosure are substances listed in Annex 6 of the Cosmetics Ordinance and cosmetic raw materials with preservative properties which support and enhance the preservative effect of the aforementioned preservatives. The preservatives are preferably contained in a total quantity from about 0.01 to about 10 wt%, preferably from about 0.1 to about 7 wt%, more preferably from about 0.2 to about 5 wt%, particularly from about 0.3 to about 2.0 wt% relative to the total weight of the antiperspirant cosmetic product.

[0062] According to the disclosure, the antiperspirant cosmetic product may further preferably contain at least one antioxidant, preferably in a total quantity from about 0.01 to about 5.0 wt% relative to the total weight of the cosmetic product. The antioxidant may be selected from ascorbic acid, ascorbyl palmitate, BHT, substituted hydroxyhydrocinnamic acid esters, substituted benzotriazoles, dialkylthiodialkanoates, tocopherol and esters thereof (e.g., acetate), hydroxymethoxyphenyl decanone, paradol and mixtures thereof, in particular substituted hydroxyhydrocinnamic acid esters and mixtures thereof.

[0063] According to the disclosure, the antiperspirant cosmetic product contains an aqueous cosmetic carrier. The antiperspirant cosmetic product contains free water, preferably in a quantity from about 5 to about 99 wt% relative to the total weight of the antiperspirant cosmetic product. The antiperspirant cosmetic product therefore also preferably contains free water in a total quantity from about 5 to about 96 wt%, preferably from aboutl5 to about 80 wt%, more preferably from about 30 to about 70 wt%, particularly from about 40 to about 60 wt% relative to the total weight of the antiperspirant cosmetic product. In certain embodiments of the disclosure, the aqueous cosmetic carrier may also contain ethanol. For example, ethanol may be contained in the cosmetic product of the present disclosure in a quantity from about 0.1 to about 30 wt% or from about 0.5 to about 10 or from aboutl to about 5 wt% relative to the total weight of the antiperspirant cosmetic product.

[0064] The antiperspirant cosmetic product according to the disclosure may be applied by a variety of processes. According to a preferred embodiment, the antiperspirant cosmetic product is prepared as a spray application. The spray application is carried out with a spray apparatus which contains a charge of the aqueous antiperspirant cosmetic product according to the disclosure in a reservoir. The charge may be pressurised by a propellant (compressed gas cans, compressed gas packs, aerosol packs), or it may be a mechanically operated pump atomiser without propellant gas (pump sprays/ squeeze bottle). In this context, the antiperspirant cosmetic product may be atomised physically, mechanically or electromechanically, for example by piezoeffects or electrical pumping.

[0065] The antiperspirant cosmetic product may also preferably be conditioned in the form of a stick, soft solid, cream, gel or roll-on. The formulation of the antiperspirant cosmetic product according to the disclosure in a given delivery form, such as an antiperspirant roll-on, an antiperspirant stick or an antiperspirant gel, for example, is preferably adapted to the requirements of the intended purpose. Depending on the intended purpose, the antiperspirant cosmetic products according to the disclosure may thus be available in solid, semi-solid, liquid, dispersed, emulsified, suspended, gel or multiphase form. Within the scope of the present disclosure, the term liquid also embraces all kinds of solid dispersions in liquids. Additionally within the scope of the present disclosure, the term “multiphase antiperspirant cosmetic products” according to the disclosure is understood to mean substances that have at least 2 different phases with a phase separation, and in which the phases may be arranged horizontally, that is to say one above the other, or vertically, that is to say side by side. The application may be carried out for example with a rollerball applicator or by means of a solid stick.

[0066] It may also be preferred if the antiperspirant cosmetic product is accommodated on and/or in a disposable substrate selected from the group of wipes, pads and wads. Moist wipes are particularly preferred, i.e. prefabricated, moist wipes preferably packed f individually for the user, such as are sufficiently known from glass cleaning or moist toilet paper applications. Such moist wipes, which may advantageously also contain preserving agents, are impregnated or coated with an antiperspirant cosmetic product according to the disclosure. Preferred substrate materials are selected from porous, flat cloths. Such wipes include fabrics made from woven and nonwoven (fleece), synthetic and natural fibres, felt, paper, foam, such as hydrophilic polyurethane foam. Preferred deodorising or antiperspirant substrates according to the disclosure may be created by soaking or impregnating or even by fusing an antiperspirant cosmetic product according to the disclosure onto a substrate.

[0067] Preferably according to the disclosure, the antiperspirant cosmetic product contains at least one further excipient selected from the group of thickening agent; chelating agents; active deodorant ingredients; mono- and/or polyvalent alcohols and/or polyethylene glycols; skin cooking agents; pH adjusters; skin care agents such as moisturisers, skin soothing substances, skin healing substances, skin smoothing substances; and mixtures thereof.

[0068] In order to thicken the antiperspirant cosmetic products according to the disclosure, substances are used that are preferably selected from cellulose ethers, xanthan gum, sclerotium gum, succinoglucanes, polygalactomannanes, pectins, agar, carrageenan, tragacanth, gum arabic, karaya gum, tara gum, gellan, gelatin, propylene glycol alginate, algic acids and salts thereof, polyviny lpyrrolidones, polyvinyl alcohols, polyacrylamides, physically (e.g., by pregelatinisation) and/or chemically modified starches, acrylic acid-acrylate-copolymers, acrylic acid-acrylamide copolymers, acrylic acid-vinylpyrrolidone copolymers, acrylic acidvinylformamide copolymers and polyacrylates. Particularly preferred thickening agents are also selected from carbomers. Carbomers are crosslinked thickening polymers of acrylic acid, methacrylic acid and salts thereof. Crosslinking may be initiated by means of polyfunctional compositions such as polyalkylene ethers of polysaccharides or polyalcohols, for example sucrose allyl ether, pentaerythritol allyl ether, propylene allyl ether. Preferred within the scope of the present disclosure are homopolymers of acrylic acid or its salts which are crosslinked with a pentaerythritol allyl ether, a sucrose allyl ether or a propylene allyl ether. One thickening that is usable within the scope of the present disclosure is a copolymer of Cio-3oalkyl acrylate, acrylic acid, methacrylic acid and esters thereof, which is crollslinked with a sucrose allyl ether or a pentaerythritol allyl ether. Carbomer-based thickening agents are those products that are commercially available under the trade name Carbopol® (BF Goodrich, Ohio, USA), such as Carbopol 934, Carbopol 940, Carbopol 941, Carbopol 971, Carbopol 974, Carbopol EZ2, Carbopol ETD 2001, Carbopol ETD 2020, Carbopol ETD 2050, Carbopol ultrez 10, Carbopol ultrez 20, or Carbopol ultrez 21.

[0069] Lipophilic thickening agents may also be used to thicken the antiperspirant cosmetic products according to the disclosure. Preferred lipophilic thickening agents according to the disclosure are selected from hydrophobised clay minerals, bentonites, pyrogenic silicas and their derivatives.

[0070] It may be advantageous to add at least one chelating agent to the preparations according to the disclosure in a total quantity from about 0.01 to about 3.0 wt%, preferably from about 0.02 to about 1.0 wt%, particularly from about 0.05 to about 0.1 wt% relative to the total weight of the antiperspirant product according to the disclosure. Preferred chelating agents within the scope of the present disclosure are selected from the group of β-alanine diacetic acid, cyclodextrin, diethylene triaminepentamethylene phosphonic acid, sodium-, potassium, calciumdisodium-, ammonium- and triethanol amine salts of ethylendiaminetetraacetic acid (EDTA), etidronic acid, hydroxyethylethylenediaminetetraacetic acid (HEDTA) and the sodium salts thereof, sodium salts of nitrilotriacetic acid (NTA), diethylenetriaminepentaacetic acid, phytic acid, hydroxypropylcyclodextrin, methylcyclodextrin, aminotrimethylenephosphonatepentasodium, ethylenediaminetetramethylenephosphonate-pentasodium, diethylenetriaminepentaacetate-pentasodium, pentasodium triphosphate, potassium EDTMP, sodium EDTMP, sodium dihydroxyethyl glycinate, sodium phytate, sodium polydimethyl glycinophenol sulfonate, tetrahydroxyethylethylene diamine, tetrahydroxypropylethylene diamin, tetrapotassiumetidronate, tetrasodium etidronate, tetrasodium imino disuccinate, trisodium ethylenediamine disuccinate, tetrasodium-Ν,Ν- bis(carboxymethyl)glutamate, tetrasodiumDL-alanine-N,N-diacetate and deferoxamine.

[0071] In order to further improve the antiperspirant and deodorising effect of the compositions according to the disclosure, in a preferred embodiment they contain at least one deodorant agent in a total quantity from about 0.001 to about 15 wt% relative to the total weight of the cosmetic product. If ethanol is used in the products according to the disclosure, the ethanol is not considered as a deodorant agent but as a component of the carrier for the purposes of the present disclosure.

[0072] Preferred deodorant agents according to the disclosure are odour absorbers, ion exchangers with deodorising action, germ-inhibitors, prebiotically acting components and enzyme inhibitors or, particularly preferably, combinations of said agents.

[0073] Silicates function as odour absorbers and at the same time also advantageously enhance the rheological properties of the composition according to the disclosure. The particularly preferred silicates according to the disclosure include above all sheet silicates, and of these in particular montmorillonite, kaolinite, illite, beidellite, nontronite, saponite, hectorite, bentonite, smectite and talcum.

[0074] Further preferred odour absorbers are for example zeolite, zinc ricinoleate, cyclodextrin, certain metal oxides such as for example aluminium oxide and chlorophyll.

[0075] Further preferred odour absorbers according to the disclosure are selected from perlite.

[0076] For the purposes of the disclosure, germ-inhibiting or antimicrobial agents are understood to be agents which reduce the numbers of skin flora that contribute to odour generation or limit the growth thereof. These microbes include inter alia various species from the group of Staphylococci, the group of corynebacteria, anaerococci and micrococci.

[0077] Preferred germ-inhibiting or antimicrobial agents according to the disclosure are particularly organohalogen compounds and halides, quarternary ammonium compounds, a range of plant extracts and zinc compounds. These include inter alia triclosan, chlorhexidine and chlorhexidine gluconate, 3,4,4'-trichlorocarbanilide, bromochlorophene, dichlorophene, chlorothymol, chloroxylenol, hexachlorophene, dichloro-m-xylenol, dequalinium chloride, domiphen bromide, ammonium phenol sulfonate, benzalkonium halides, benzalkonium cetyl phosphate, benzalkonium saccharinate, benzethonium chloride, cetylpyridinium chloride, laurylpyridinium chloride, laurylisoquinolinium bromide, methylbenzethonium chloride. Also usable are phenol, phenoxyethanol, disodium dihydroxyethyl sulfosuccinyl undecylenate, sodium bicarbonate, zinc lactate, sodium phenol sulfonate and zinc phenol sulfonate, ketoglutaric acid, terpene alcohols such as farnesol, chlorophyllin-copper complexes, amonoalkyl glycerol ethers with a branched or linear saturated or unsaturated, optionally hydroxylated C6-C22 alkyl radical, particularly preferably a-(2-ethylhexyl)glycerol ether, available commercially under the trade name Sensiva® SC 50 (from Schiilke & Mayr), carboxylic acid esters of the mono-, di- and triglycerol (e.g., glycerol mono laurate, diglycerol monocaprinate), lantibiotics and plant extracts (e.g., green tea and components of lime blossom oil).

[0078] Further preferred deodorant agents are selected from components described as having prebiotic action, which for the purposes of the disclosure are considered to be those components which only or at least predominantly inhibit odour-forming microbes in the skin microflora, but not the desirable microbes, that is to say the microbes which do not form odours and help to maintain the health of the skin microflora. Active agents such as conifer extracts, particularly from the group of Pinaceae, and plant extracts from the group of

Sapindaceae, Araliaceae, Lamiaceae and Saxifragaceae, particularly extracts from Picea spp., Paullinia sp., Panax sp., Lamium album or Ribes nigrum and mixtures of these substances are identified by name in this context.

[0079] Further preferred deodorant agents are selected from the perfume oils with germinhibiting action as well as the Deosafe® perfume oils which are available from the company Symrise, formerly Haarmann and Reimer.

[0080] Further preferred deodorant agents are selected from silver salts, particularly silver citrate, dihydrogen silver citrate, silver lactate and silver sulfate, soluble complex salts of silver, colloidal silver and silver zeolites.

[0081] The enzyme inhibitors include substances which inhibit the enzymes responsible for decomposing sweat, particularly aryl sulfatase, β-glucuronidase, aminoacylase, esterases, lipases and/or lipoxigenase, e.g., trialkyl citric acid esters, particularly triethyl citrate or zinc glycinate.

[0082] Preferred antiperspirant compositions according to the disclosure are characterized in that the at least one deodorant agent is selected from aryl sulfatase inhibitors, betaglucuronidase inhibitors, aminoacylase inhibitors, esterase inhibitors, lipase inhibitors and lipoxigenase inhibitors, α-monoalkyl glycerol ethers with a branched or linear saturated or unsaturated, optionally hydroxylated C6-C22 alkyl radical, particularly a-(2-ethylhexyl) glycerol ether, phenoxyethanol, benzylheptanol, cocamidopropyl PG-dimonium chloride phosphate and butyloctanoic acid, polyglycerol-3-caprylate, germ-inhibting perfume oils, Deosafe® perfume oils (Deosafe® is a registered trademark of Symrise, formerly Haarmann & Reimer), probiotically effective components, trialkyl citric acid esters, particularly triethyl citrate, active agents which reduce the numbers of skin flora involved in odour generation from the group of Staphylococci, Corynebacteria, Anaerococci and Micrococci, or inhibit the growth thereof, zinc compositions, particularly zinc phenol sulfonate and zinc ricinoleate, organohalogen compounds, particularly triclosan, chlorhexidine, chlorhexidine gluconate and benzalkonium halides, quarternary ammonium compounds, particularly cetylpyridinium chloride, odour absorbers, particularly silicates and zeolites, sodium bicarbonate, lantibiotics and mixtures of the abovementioned substances.

Further antiperspirant compositions preferred according to the disclosure are characterized in that the at least one deodorising agent is contained in a total quantity from about 0.0001 about 15 wt%, preferably about 0.2- about 7 wt%, particularly preferably about 0.3- about 5 wt% and exceptionally preferably about 0.4- about 1.0 wt% relative in each case to the total weight of the active substance in the one or more deodorising agent(s) in the total composition.

[0083] In a further particularly preferred embodiment, the compositions according to the disclosure contain both at least one deodorising and at least one antiperspirant agent.

[0084] Preferred compositions according to the disclosure also contain at least one watersoluble polyvalent C2-C9 alkanol with 2-6 hydroxyl groups and/or at least one water-soluble polyethylene glycol with 3-50, preferably 3-20 ethylene oxide units and mixtures thereof to further improve the stability of the compositions. These components are preferably selected from 1,2-propylene glycol, 2-methyl-1,3-propanediol, glycerol, 1,2-butylene glycol, 1,3butylene glycol, 1,4-butylene glycol, pentylene glycols such as 1,2-pentanediol and 1,5pentanediol, hexanediols such as 1,6-hexanediol, hexanetriols such as 1,2,6-hexanetriol, 1,2octanediol, 1,8-octanediol, dipropylene glycol, tripropylene glycol, diglycerol, triglycerol, erythrite, sorbite and mixtures of the abovementioned substances. Suitable water-soluble polyethylene glycols are selected from PEG-3, PEG-4, PEG-6, PEG-7, PEG-8, PEG-9, PEG10, PEG-12, PEG-14, PEG-16, PEG-18 and PEG-20 and mixtures thereof, wherein PEG-3 to PEG-8 are preferred. Preferably, propylene glycol, dipropylene glycol or a mixture thereof is contained, more preferably only propylene glycol is contained. These are preferably contained in a total quantity from about 0.1 to about 50 wt%, more preferably from about 0.5 to about 10 or from about 1 to about 5 wt%.

[0085] According to a further embodiment of the present disclosure, the antiperspirant cosmetic products further contain at least one active skin-cooling agent. Suitable active skincooling agents according to the disclosure are for example menthol, isopulegol and menthol derivatives, e.g., menthyl lactate, menthyl glycolate, menthyl ethyl oxamate, menthyl pyrrolidone carboxylic acid, menthyl methylether, menthoxy propanediol, menthone glycerol acetal (9-methyl-6-(l -methylethyl)-1 ,4-dioxaspiro (4.5)decane-2- methanol), monomenthyl succinate, 2-hydroxymethyl-3,5,5-trimethylcyclohexanol and 5-methyl-2-(l methylethyl)cyclohexyl-N-ethyloxamate. Preferred as active skin-cooling agents are menthol, isopulegol, menthyl lactate, menthoxypropanediol,menthyl pyrrolidone carboxylic acid and 5methyl-2-(l-methylethyl)cyclohexyl-N-ethyloxamate and mixtures of these substances, particularly mixtures of menthol and menthyl lactate, menthol, menthol glycolate and menthyl lactate, menthol and menthoxy propanediol or menthol and isopulegol.

[0086] Finally, a further object of the present disclosure is a non-therapeutic cosmetic method for preventing and/or reducing bodily perspiration, in which an antiperspirant cosmetic product according to the disclosure is applied to the skin, particularly the skin of the armpits, and remains on the skin of the armpits for at least 1 hour, preferably at least about 2 hours, more preferably for at least about 4 hours, particularly for at least about 6 hours [0087] The notes explaining the antiperspirant cosmetic products according to the disclosure also apply mutatis mutandis to the method according to the disclosure.

[0088] Examples:

A 3 wt% aqueous solution of the homo-polyethylenimine was produced in water using an unmodified, branched homo-polyethylenimine with a molecular weight average of 1300 g/mol and a ratio between the primary: secondary Tertiary amino groups = 40:36:24. The solution was adjusted to a pH value of 3.5 with hydrochloric acid. The solution obtained was visually clear. The antiperspirant action was tested on the backs of a group of test participants. A reduction of 65% in sweat generation was observed.

[0089] A 10 wt% aqueous solution of aluminium chlorohydrate was used for comparison purposes. With this comparison solution, similar reductions in sweat generation were observed.

[0090] It was further observed that when the pH of the clear aqueous homopolyethylenimine solution was adjusted to the neutral range, no clouding of the solution occurred.

Claims (25)

1. An antiperspirant cosmetic product which contains, in an aqueous cosmetic carrier, relative to the total quantity of the cosmetic product:

a) at least one branched homo-polyethylenimine with a molecular weight from about 300 to about 10,000 g/mol in a total quantity from about 0.1 to about 20 wt%, wherein the homopoly ethylenimine contains a fraction of from about 20 mol% to about 35 mol% amino groups with three non-hydrogen atom radicals relative to the amount of substance of all amino groups in the homo-polyethylenimine,

b) at least one emulsifier in a total quantity from about 0.05 to about 10 wt%, and

c) at least one oil component in a total quantity from about 0.05 to about 50 wt%, wherein:

- the cosmetic product has a pH value from about 2.5 to about 7.5 and the homopolyethylenimine is polycationic,

- the cosmetic product contains at least one anion selected from the group consisting of chloride, phosphates and sulfates, and

- the cosmetic product contains no halides and/or hydroxyhalides of aluminium and/or zirconium.

2. The antiperspirant cosmetic product according to Claim 1, wherein the product contains from about 0.5 to about 10 wt%, homo-polyethylenimine.

3. The antiperspirant cosmetic product according to Claim 1, wherein the product contains from about 1.0 to about 7.0 wt%, homo-polyethylenimine.

4. The antiperspirant cosmetic product according to Claim 1, wherein the product contains from about 2.0 to about 5.0 wt% homo-polyethylenimine.

5. The antiperspirant cosmetic product according to any preceding claim, wherein about 10 wt% or more of the anions contained are chloride ions.

6. The antiperspirant cosmetic product according to any preceding claim, wherein about

30 wt% of the anions contained are chloride ions.

7. The antiperspirant cosmetic product according to any preceding claim, wherein about

50 wt% or more of the anions contained are chloride ions.

8. The antiperspirant cosmetic product according to any preceding claims, wherein from about 99.0 wt% to about 100 wt%, of the anions contained are chloride ions.

9. The antiperspirant cosmetic product according to any one of the preceding claims, wherein at 22 °C the product has a determined pH value from about 2.5 to about 7.0.

10. The antiperspirant cosmetic product according to any one of the preceding claims, wherein at 22 °C the product has a determined pH value from about 3.5 to about 5.5.

11. The antiperspirant cosmetic product according to any one of the preceding claims, wherein at 22 °C the product has a determined pH value from about 3.3 to about 4.5.

12. The antiperspirant cosmetic product according to any one of the preceding claims, wherein the homo-polyethylenimine has an average molecular weight from about 500 to about 3,000 mol/g.

13. The antiperspirant cosmetic product according to any one of the preceding claims, wherein the homo-polyethylenimine has an average molecular weight from about 1,000 to about 2,000 mol/g.

14. The antiperspirant cosmetic product according to any one of the preceding claims, wherein the total quantity of the at least one emulsifier is from about 0.2 to about 10.0 wt%, relative to the total weight of the cosmetic product..

15. The antiperspirant cosmetic product according to any one of the preceding claims, characterized in that the product contains an antioxidant in an amount of from about 0.01 to about 5.0 wt%.

16. The antiperspirant cosmetic product according to any one of the preceding claims, wherein the product contains at least one thickening agent.

17. The antiperspirant cosmetic product according to any one of the preceding claims, wherein the product contains at least one further anion.

18. The antiperspirant cosmetic product of Claim 17, wherein the at least one further anion comprises an organic anion.

19. The antiperspirant cosmetic product of Claim 17 or Claim 18, wherein the at least one further anion comprises an anion selected from the group consisting of citrate, lactate, tartrate and malate.

20. The antiperspirant cosmetic product according to any one of the preceding claims, wherein the fraction of amino groups with one non-hydrogen radical (corresponding to primary amino groups with alkaline pH value) is from about 30 to about 45 mol%, relative in each case to the amount of substance or all amino groups in the homo-polyethylenimine.

21. The antiperspirant cosmetic product according to any one of the preceding claims, wherein the fraction of amino groups with two non-hydrogen radicals (corresponding to secondary amino groups with alkaline pH value) is from about 30 to about 45 mol%, relative in each case to the amount of substance or all amino groups in the homo-polyethylenimine.

22. The antiperspirant cosmetic product according to any one of the preceding claims, wherein the fraction of amino groups with one non-hydrogen radical is from about 35 to about 42 mol%, the fraction of amino groups with two non-hydrogen radicals is from about 34 to about 38 mol%, and the fraction of amino groups with three non-hydrogen radicals is from about 22 to about 30 mol%, relative in each case to the amount of substance or all amino groups in the homo-polyethylenimine.

23. The antiperspirant cosmetic product according to any one of the preceding claims, characterized in that the total quantity of the at least one oil component is from about 0.1 to about 15.0 wt%.

24. The antiperspirant cosmetic product according to any one of the preceding items, wherein the product contains at least one deodorant agent in a total quantity from about 0.0001 to about 15 wt% relative to the total weight of the cosmetic product.

25. A non-therapeutic cosmetic method for preventing and/or reducing body odour and/or bodily perspiration, in which a cosmetic product according any one of the preceding claims applied to the skin, particularly the skin of the armpits, and remains on the skin for at least 1 hour.