DE102014221643A1 - Cosmetic aerosol sprays containing a combination of an alkoxylated silicone emulsifier and hydrogenated castor oil - Google Patents

Abstract

The present application relates to cosmetic products in the form of aerosols, which contains a water-in-oil emulsion with a combination of an alkoxylated silicone emulsifier and hydrogenated castor oil and which are characterized by a high stability of the W / O emulsion, a low tendency to corrosion and a excellent release of active ingredient. Moreover, the present application relates to the use of the combination of two special W / O emulsifiers to improve the release of active ingredient and a method for preventing and / or reducing the transpiration of the body using the cosmetic product.

Description

The present application relates to cosmetic products in the form of aerosols, which contains a water-in-oil emulsion with a combination of an alkoxylated silicone emulsifier and hydrogenated castor oil.

Moreover, the present application relates to the use of a combination of an alkoxylated silicone emulsifier and hydrogenated castor oil to increase the release of cosmetic active ingredients, in particular antiperspirant active ingredients.

Finally, the present application relates to a method for preventing and / or reducing the transpiration of the body using appropriate cosmetic products.

An aerosol is a disperse system in which a solid or liquid is very finely dispersed in a gas. The aerosol is usually only when using a suitable spray system by spraying solutions, emulsions or suspensions itself generated, including, for example, spray cans can be used, in which a liquefied compressed gas serves as a propellant gas. When opening the pressure valve, the propellant-preparation mixture escapes through a fine nozzle, the propellant evaporates and leaves the finely divided spray material as an aerosol, which forms a film on surfaces, such as the skin.

A technically important area for the application of cosmetic Aersolsprays is the field of antiperspirant or deodorant cosmetic products. Common antiperspirant spray compositions are frequently known as anhydrous suspensions of the powdered antiperspirant active, usually an aluminum salt, in a liquid carrier, for example a relatively volatile oil such as cyclomethicone. Before spraying, the suspension must be shaken in the propellant gas. A disadvantage of these suspension aerosols is that the valve or nozzle bores can clog at higher concentrations of the active ingredient. In addition, such products cause white spots on the clothes, which are perceived by the consumer to be particularly unpleasant on dark clothing. There have therefore been attempts to spray the antiperspirant salt in dissolved form. However, the formulation of aqueous antiperspirant salt solutions in propellant-containing metal cans causes corrosion problems in the aerosol packaging, so that even with painted spray cans in many cases corrosion phenomena occur on the can and thus the storage and application periods of such aerosols are significantly reduced.

As a further alternative form of preparation in the prior art water-in-oil emulsions (W / O emulsions) are known which do not lead to corrosion phenomena. However, such W / O emulsions often show a slower release of the antiperspirant drug on the skin so that the antiperspirant performance of these W / O emulsions is not always satisfactory.

The present application was therefore based on the object to provide a suitable for use in an aerosol spray stable water-in-oil emulsion with low tendency to corrosion when stored in a metallic spray can, which ensure a high release of the antiperspirant active ingredient. Furthermore, the W / O emulsions should have a low residue formation during or after the application.

It has now surprisingly been found that the use of a combination of two special W / O emulsifiers in the form of alkoxylated silicone emulsifiers and a wax in the form of hydrogenated castor oil to a rapid release of the antiperspirant active after spraying on the skin, especially the skin Armpits, leads. Furthermore, W / O emulsions containing a combination of the aforementioned specific W / O emulsifiers have a high stability with low tendency to corrosion and therefore lead to stable antiperspirant products with high storage and application periods.

• – eine Wasser-in-Öl-Emulsion, enthaltend a) mindestens einen kosmetischen Wirkstoff, b) mindestens ein Siliconpolymer der Formel (I),
  
  worin R₁ und R₂, jeweils unabhängig voneinander, für Wasserstoff oder eine Methylgruppe stehen, R₃ für eine Alkylgruppe mit 1 bis 4 Kohlenstoffatomen steht, x für ganze Zahlen von 1 bis 5 steht, y und z, jeweils unabhängig voneinander für mittlere Zahlenwerte von 10 bis 30 stehen, n für ganze Zahlen von 1 bis 500 steht, und m für ganze Zahlen von 1 bis 100 steht, mit der Maßgabe, dass die Reihenfolge der in den geschwungenen Klammern stehenden Einheiten mit den Indices n, m, y und z beliebig ist, und c) mindestens ein Wachs, ausgewählt aus hydriertem Rizinusöl,
• – mindestens ein Treibmittel, und
• – eine Aerosol-Abgabevorrichtung.

The present invention thus relates to a cosmetic product comprising

• A water-in-oil emulsion containing a) at least one cosmetic active substance, b) at least one silicone polymer of the formula (I),
  
  wherein R ₁ and R ₂ each independently represent hydrogen or a methyl group, R _{3 represents} an alkyl group of 1 to 4 carbon atoms, x represents integers of 1 to 5, y and z each independently represent average numbers from 10 to 30, n stands for integers from 1 to 500, and m stands for integers from 1 to 100, with the proviso that the order of the units in the curly brackets with the indices n, m, y and z is arbitrary, and c) at least one wax selected from hydrogenated castor oil,
• At least one propellant, and
• An aerosol dispenser.

By combining at least one specific alkoxylated silicone emulsifier with hydrogenated castor oil, stable W / O emulsions are obtained which have no tendency to corrode, but at the same time permit rapid release of the antiperspirant active from the film applied to the skin, thus ensuring a high antiperspirant effect. The use of a combination of specific W / O emulsifiers according to the invention makes it possible to provide aerosol-based antiperspirant products which have a high antiperspirant performance but at the same time do not lead to corrosion of the aerosol cans.

The term "fatty acid" as used in the context of the present invention means aliphatic carboxylic acids which have unbranched or branched carbon radicals having 4 to 40 carbon atoms. The fatty acids used in the present invention may be both naturally occurring and synthetically produced fatty acids. In addition, the fatty acids may be monounsaturated or polyunsaturated.

Furthermore, the term "fatty alcohol" in the context of the present invention means aliphatic, monohydric, primary alcohols which have unbranched or branched hydrocarbon radicals having 4 to 40 carbon atoms. The fatty alcohols used in the invention may also be monounsaturated or polyunsaturated.

The term% by weight, in the present case, unless otherwise stated, refers to the total weight of the propellant-free W / O emulsion of the cosmetic product.

As a first constituent, the W / O emulsions used in the cosmetic product according to the invention comprise at least one cosmetic active substance a).

According to a preferred embodiment of the present invention, the at least one cosmetic active substance a) is selected from the group of antiperspirant active substances, in particular the antiperspirant aluminum salts. The term "antiperspirant active ingredients" are understood according to the invention as active ingredients which reduce or reduce the perspiration of the sweat glands of the body.

• (i) wasserlöslichen adstringierenden anorganischen Salzen des Aluminiums, insbesondere Aluminiumchlorhydrat, Aluminiumsesquichlorohydrat, Aluminiumdichlorohydrat, Aluminiumhydroxid, Kaliumaluminiumsulfat, Aluminiumbromhydrat, Aluminiumchlorid, Aluminiumsulfat;
• (ii) wasserlöslichen adstringierenden organischen Salzen des Aluminiums, insbesondere Aluminiumchlorhydrex-Propylenglycol, Aluminiumchlorhydrex-Polyethylenglycol, Aluminium-Propylenglycol-Komplexe, Aluminiumsesquichlorhydrex-Propylenglycol, Aluminiumsesquichlorhydrex-Polyethylenglycol, Aluminium-Propylenglycol-dichlorhydrex, Aluminium-Polyethylenglycol-dichlorhydrex, Aluminiumundecylenoylcollagenaminosäure, Natriumaluminium-lactat, Natriumaluminiumchlorhydroxylactat, Aluminium-lipoaminosäuren, Aluminiumlactat, Aluminiumchlorohydroxyallantoinat, Natrium-Aluminium-Chlorohydroxylactat;
• (iii) wasserlöslichen adstringierenden anorganischen Aluminium-Zirkonium-Salzen, insbesondere Aluminiumzirconiumtrichlorhydrat, Aluminiumzirconiumtetrachlorhydrat, Aluminiumzirconiumpentachlorhydrat, Aluminiumzirconiumoctachlorhydrat;
• (iv) wasserlöslichen adstringierenden organischen Aluminium-Zirkonium-Salzen, insbesondere Aluminiumzirkonium-Propylenglycol-Komplexe, Aluminiumzirconiumtrichlorhydrexglycin, Aluminiumzirconiumtetrachlorhydrexglycin, Aluminiumzirconiumpentachlorhydrexglycin, Aluminiumzirconiumoctachlorhydrexglycin; sowie
• (v) deren Mischungen.

In this connection, it is preferable if the antiperspirant aluminum salt is selected from the group of

• (i) water-soluble astringent inorganic salts of aluminum, especially aluminum chlorohydrate, aluminum sesquichlorohydrate, aluminum dichlorohydrate, aluminum hydroxide, potassium aluminum sulfate, aluminum bromohydrate, aluminum chloride, aluminum sulfate;
• (ii) water-soluble astringent organic salts of aluminum, especially aluminum chlorohydrex-propylene glycol, aluminum chlorohydrex-polyethylene glycol, aluminum-propylene glycol complexes, aluminum sesquichlorohydrex-propylene glycol, aluminum sesquichlorohydrex-polyethylene glycol, aluminum-propylene glycol-dichlorhydrex, aluminum-polyethylene glycol-dichlorhydrex, aluminum undecylenoyl collagen amino acid, sodium aluminum lactate Sodium aluminum chlorhydroxyl lactate, aluminum lipoamino acids, aluminum lactate, aluminum chlorohydroxy allantoinate, sodium aluminum chlorohydroxy lactate;
• (iii) water-soluble astringent inorganic aluminum-zirconium salts, especially aluminum zirconium trichlorohydrate, aluminum zirconium tetrachlorohydrate, aluminum zirconium pentachlorohydrate, aluminum zirconium octachlorohydrate;
• (iv) water-soluble astringent organic aluminum-zirconium salts, especially aluminum zirconium-propylene glycol complexes, aluminum zirconium trichlorohydrex glycine, aluminum zirconium tetrachlorohydrex glycine, aluminum zirconium pentachlorohydrex glycine, aluminum zirconium octachlorohydrex glycine; such as
• (v) their mixtures.

The term "antiperspirant aluminum salts" are understood according to the invention no aluminosilicates and zeolites. Furthermore, according to the invention, water-soluble aluminum salts mean those salts which have a solubility of at least 3% by weight at 20 ° C., ie. H. At least 3 g of the antiperspirant aluminum salt dissolve in 97 g of water at 20 ° C.

Particularly preferred inorganic aluminum salts are selected from aluminum chlorohydrate, in particular aluminum chlorohydrate having the general formula [Al ₂ (OH) ₅ Cl. 1-6H ₂ O] n, preferably [Al ₂ (OH) ₅ Cl. 2-3H ₂ O] n, which may be in unactivated (polymerized) or in activated (depolymerized) form, and aluminum chlorohydrate of the general formula [Al ₂ (OH) ₄ Cl ₂ .1-6H ₂ O] n, preferably [Al ₂ (OH) ₄ Cl ₂ 2-3H ₂ O] n, which may be in unactivated (polymerized) or in activated (depolymerized) form. The production of such antiperspirant aluminum salts is for example in the publications US 3,887,692 A. . US 3 904 741 A . US 4,359,456 A . GB 2 048 229 A and GB 1 347 950 A disclosed.

According to the invention particularly preferred antiperspirant aluminum salts are selected from so-called "activated" aluminum salts, which are also referred to as "antiperspirant active ingredients" with enhanced activity (English: enhanced activity). Such agents are known in the art and are also commercially available. Their preparation is for example in the publications GB 2 048 229 A . US Pat. No. 4,775,528 and US 6 010 688 A disclosed. Activated aluminum salts are typically produced by heat-treating a dilute solution of the appropriate salt (eg, a 10 wt.% Salt solution) to increase its HPLC peak 4-to-peak 3 area ratio. The activated salt can then be dried to a powder, in particular spray-dried. In addition to the spray drying z. B. also suitable for drum drying. Activated aluminum salts typically have a HPLC peak 4-to-peak 3 area ratio of at least 0.4, preferably at least 0.7, especially at least 0.9, with at least 70% of the aluminum attributable to these HPLC peaks.

It is also possible according to the invention, antiperspirant aluminum salts as nonaqueous solutions or solubilized an activated antiperspirant aluminum salt, for example according to the document US 6 010 688 A to use. Such aluminum salts are stabilized against the loss of activation of the salt by the addition of an effective amount of a polyhydric alcohol having 3 to 6 carbon atoms and 3 to 6 hydroxyl groups, preferably propylene glycol, sorbitol and pentaerythritol.

Also particularly preferred are complexes of activated antiperspirant aluminum salts with a polyhydric alcohol containing from 20 to 50% by weight, preferably from 20 to 42% by weight, of activated antiperspirant aluminum salt and from 2 to 16% by weight of molecularly bound water, the remainder to 100% by weight of at least one polyhydric alcohol having 3 to 6 carbon atoms and 3 to 6 hydroxyl groups. Propylene glycol, propylene glycol / sorbitol mixtures and propylene glycol / pentaerythritol mixtures are preferred such alcohols. Such inventively preferred complexes of an activated antiperspirant aluminum salt with a polyhydric alcohol are, for example, in the publications US 5 643 558 A and US Pat. No. 6,245,325 disclosed.

In the context of the present invention, it is also possible, as antiperspirant aluminum salts of basic calcium aluminum salts, as z. B. in the document US 2 571 030 A are disclosed use. These salts can be obtained by reacting calcium carbonate with aluminum chlorhydroxide or aluminum chloride and aluminum powder or by adding calcium chloride dihydrate to aluminum chlorhydroxide. However, it is also possible to aluminum-zirconium complexes, which are buffered with salts of amino acids, in particular with alkali and Erdalkaliglycinaten, and as such. B. in the document US 4 017 599 A are disclosed use.

The preferred antiperspirant activated aluminum salts according to the invention may also be those described in the following publications US Pat. No. 6,245,325 . US 6 042 816 A . US Pat. No. 6,245,325 . US 6 042 816 A . US Pat. No. 6,245,325 . US 6 042 816 A . US Pat. No. 6,245,325 . US 6 042 816 A or US Pat. No. 7,105,691 A. aluminum salts are used, which are preferably stabilized by amino acids, in particular glycine, hydroxyalkanoic acids, in particular glycolic acid and lactic acid, or betaines.

Further preferred activated aluminum salts are those of the general formula Al ₂ (OH) _6-a Xa, wherein X is Cl, Br, I or NO ₃ and "a" is a number from 0.3 to 5, preferably from 0.8 to 2.5 is in particular from 1 to 2, so that the molar ratio of Al: X is 0.9: 1 to 2.1: 1. Such activated antiperspirant aluminum salts are for example in the document US Pat. No. 6,074,632 A disclosed. Particularly preferred is aluminum chlorohydrate (ie X in the above formula is Cl) and especially 5/6 basic aluminum chlorohydrate with "a" = 1 such that the molar ratio of aluminum to chlorine is 1.9: 1 to 2.1: 1 ,

Particularly preferred antiperspirant aluminum salts according to the invention have a molar metal-to-chloride ratio of 1.9 to 2.1. The metal-to-chloride ratio of aluminum sesquichlorohydrates, which is also particularly preferred in the invention, is 1.5: 1 to 1.8: 1. In addition, the metal to chloride ratio of particular preferred activated aluminum sesquichlorohydrates is 2.5: 1 to 2: 1.3.

A particularly good antiperspirant effect is obtained in the context of the present invention if the water-in-oil emulsion comprises the at least one cosmetic active substance a) in a total amount of from 2 to 40% by weight, preferably from 3 to 38% by weight. , preferably from 4 to 35 wt .-%, more preferably from 5 to 32 wt .-%, even more preferably from 8 to 30 wt .-%, in particular from 12 to 25 wt .-%, based on the total weight of the blowing agent-free Water-in-oil emulsion.

As a second constituent, the W / O emulsions used in the cosmetic product according to the invention comprise at least one alkoxylated silicone emulsifier b) of the formula (I).

• – als statistische Polymere mit einer zufälligen Verteilung der Monomere mit den Indices n und m, oder
• – als Gradientenpolymere mit einem veränderlichen Anteil eines der Monomere mit den Indices n oder m im Verlauf der Siliconkette, oder
• – als alternierende oder abwechselnde Siliconpolymere mit einer regelmäßigen Anordnung der Monomere mit den Indices n und m, oder
• – als Blockcoplolymere mit längeren Blöcken des Monomers mit dem Index m sowie mit längeren Blöcken des Monomers mit dem Index n vorliegen.

In the context of the present invention, it is advantageous with regard to the release of cosmetic active substance a) and the stability of the W / O emulsions, if specific silicone polymers of the formula (I) are used. The alkoxylated silicone polymers, which are made up of different monomers with the indices n and m, can in this case

• As statistical polymers with a random distribution of the monomers with the indices n and m, or
• As gradient polymers with a variable proportion of one of the monomers with the indices n or m in the course of the silicone chain, or
• As alternating or alternating silicone polymers with a regular arrangement of the monomers with the indices n and m, or
• - be present as block copolymers with longer blocks of the monomer with the index m and with longer blocks of the monomer with the index n.

The statements concerning the monomers with the indices n and m apply equally to the alkoxylated monomers with the indices y and z in the side chain of the alkoxylated silicone polymer.

It is inventively preferred if in the formula (I) the radicals R ₁ , R ₂ and R _{3 are} each a methyl group.

It is further preferred in the context of the present invention if in the formula (I) x stands for integers from 1 to 4, in particular 2 to 3 and y and z, in each case independently, for mean numerical values from 12 to 25, preferably from 15 to 20, in particular from 16 to 18, stand. The mean numerical value is to be understood here as the mean value.

In addition, it is advantageous according to the invention if in formula (I) n represents integers from 1 to 400, preferably from 1 to 300, preferably from 1 to 200, in particular from 1 to 100, and m is an integer from 1 to 80, preferably from 1 to 60, in particular from 1 to 40, stands.

worin
n für ganze Zahlen von 1 bis 400, vorzugsweise von 1 bis 300, bevorzugt von 1 bis 200, insbesondere von 1 bis 100, steht, und
m für ganze Zahlen von 1 bis 80, vorzugsweise von 1 bis 60, insbesondere von 1 bis 40, steht,
y und z, jeweils unabhängig voneinander, für mittlere Zahlenwerte von 18 stehen,
mit der Maßgabe, dass die Reihenfolge der in den geschwungenen Klammern stehenden Einheiten mit den Indices n, m, y und z beliebig ist,
enthält. Als besonderes vorteilhaft im Hinblick auf die Wirkstofffreisetzung sowie die Stabilität der W/O-Emulsionen hat sich der Einsatz des unter der INCI-Bezeichnung bekannten PEG/PPG-18/18 Dimethicone herausgestellt. Particularly good results with regard to the release of the cosmetic active substance a) and the stability of the W / O emulsions are obtained if the water-in-oil emulsion comprises at least one silicone polymer of the formula (Ia)

wherein
n represents integers from 1 to 400, preferably from 1 to 300, preferably from 1 to 200, in particular from 1 to 100, and
m is an integer from 1 to 80, preferably from 1 to 60, in particular from 1 to 40,
y and z, each independently, represent mean numbers of 18,
with the proviso that the order of the units in the curly brackets with the indices n, m, y and z is arbitrary,
contains. The use of the PEG / PPG-18/18 dimethicone known under the INCI name has proven to be particularly advantageous with regard to the release of active ingredient and the stability of the W / O emulsions.

On the one hand to allow a sufficiently high stability of the W / O emulsion, on the other hand, however, to ensure a sufficiently rapid release of the cosmetic active ingredient a), it is advantageous if the at least one silicone polymer of the formula (I) in certain total amounts in the W / O emulsion is included. Preferred cosmetic products are therefore characterized in that the water-in-oil emulsion comprises the at least one silicone polymer b) of the formula (I) in a total amount of 0.01 to 5.0 wt .-%, preferably from 0.1 to 4.0% by weight, preferably from 0.5 to 3.0% by weight, more preferably from 0.8 to 2.5% by weight, still more preferably from 1.1 to 2.0% by weight. -%, In particular from 1.3 to 1.8 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion contains.

As a third constituent, the W / O emulsions used in the cosmetic product according to the invention comprise at least one wax c) selected from hydrogenated castor oil.

For the purposes of the present invention, preference is given to using a wax in the form of hydrogenated castor oil which has a specific saponification number (VZ). The saponification number is a measure of the acids bound in 1 g of wax and occurring freely. It indicates how much potassium hydroxide (in mg) is necessary to neutralize the free acids contained in 1 g of wax. With regard to the stability of the W / O emulsions and the rapid release of active ingredient, it is advantageous if the wax c) a saponification number in mg KOH per g wax c) from 130 to 250, preferably from 140 to 230, preferably from 150 to 210, in particular from 160 to 190, has. The saponification number can be determined, for example, by means of titration with an HCl solution against phenolphthalein as an indicator ( Atinafu DG, et. al; Journal of Cereals and Oil seeds; 2011, 2, pages 71 to 76 ).

In addition, waxes which have specific hydroxyl numbers are preferably used in the context of the present invention. The hydroxyl number is a measure of the content of hydroxy groups in the wax and indicates the amount of potassium hydroxide in milligrams, which is equivalent to the amount of acetic acid bound in an acetylation of 1 g wax. It is therefore preferred according to the invention if the wax c) has a hydroxyl number in mg KOH per g wax c) of 100 to 200 mg, preferably from 120 to 180, preferably from 130 to 170, in particular from 140 to 165. The hydroxyl number may be, for example be determined by titration with a KOH solution against phenolphthalein as an indicator ( Roberts WL et. al; Ind. Eng. Chem. Anal. Ed .; 1932; 4; Pages 257 to 259 ).

The wax used according to the invention preferably has a specific iodine number. This iodine value is a measure of the content of unsaturated radicals, in particular unsaturated fatty acid radicals, and indicates the amount in grams of iodine which are reacted with 100 g of wax. The wax c) preferably has an iodine value in g of I ₂ per 100 g of wax c) of from 0.5 to 60, preferably from 1 to 55, preferably from 1.5 to 50, in particular from 2 to 45. The iodine value can be determined, for example, by the Wijs method, as in the published patent application EP1622446 A1 described.

Moreover, it is preferred in the context of the present invention for the wax c) to have a specific melting point. According to a preferred embodiment of the present invention, the wax c) has a melting point of 60 to 110 ° C, preferably from 65 to 100 ° C, in particular from 70 to 90 ° C, on.

On the one hand to allow a sufficiently high stability of the W / O emulsion, on the other hand, however, to ensure a sufficiently rapid release of the cosmetic active ingredient a), it is advantageous if the at least one wax c) in certain total amounts in the W / O Emulsion is included. Preferred cosmetic products are therefore characterized in that the water-in-oil emulsion containing the at least one wax c) in a total amount of 0.01 to 5.0 wt .-%, preferably from 0.1 to 4.0 wt. -%, preferably from 0.6 to 2.0 wt .-%, in particular from 0.8 to 2.0 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion contains.

• – mindestens ein Siliconpolymer der Formel (Ia),
  
  worin n für ganze Zahlen von 1 bis 400, vorzugsweise von 1 bis 300, bevorzugt von 1 bis 200, insbesondere von 1 bis 100, steht, und m für ganze Zahlen von 1 bis 80, vorzugsweise von 1 bis 60, insbesondere von 1 bis 40, steht, y und z, jeweils unabhängig voneinander, für mittlere Zahlenwerte von 18 stehen, mit der Maßgabe, dass die Reihenfolge der in den geschwungenen Klammern stehenden Einheiten mit den Indices n, m y und z beliebig ist, und
• – mindestens ein Wachs, ausgewählt aus hydriertem Rizinusöl,

enthält. Die zuvor angeführte Kombination resultiert in einer besonders stabilen W/O-Emulsion, welche jedoch gleichzeitig eine hervorragende Wirkstofffreisetzung erlaubt. Particularly good results in terms of stability and drug release are obtained when the water-in-oil emulsion

• At least one silicone polymer of the formula (Ia),
  
  wherein n is an integer from 1 to 400, preferably from 1 to 300, preferably from 1 to 200, in particular from 1 to 100, and m is an integer from 1 to 80, preferably from 1 to 60, in particular from 1 to 40, y, and z, independently of each other, stand for average numerical values of 18, with the proviso that the order of the units in the curly brackets with the indices n, my and z is arbitrary, and
• At least one wax selected from hydrogenated castor oil,

contains. The combination mentioned above results in a particularly stable W / O emulsion, which at the same time allows excellent release of the active ingredient.

In the context of the present invention, it may be preferred for the W / O emulsions to comprise further active ingredients and ingredients which improve their stability and at the same time accelerate or at least do not negatively influence the release of active ingredient.

worin
p und q, jeweils unabhängig voneinander, für mittlere Zahlenwerte von 10 bis 30, vorzugsweise von 12 bis 25, bevorzugt von 15 bis 20, weiter bevorzugt von 16 bis 18, insbesondere 18, stehen, mit der Maßgabe, dass die Reihenfolge der in den geschwungenen Klammern stehenden Einheiten mit den Indices y und z beliebig ist. According to a preferred embodiment of the present invention, the water-in-oil emulsion additionally contains a polyethylene oxide-polypropylene oxide monoallyl ether in a total amount of 0.001 to 1.0% by weight, preferably 0.02 to 0.8% by weight. , preferably from 0.01 to 0.6 wt .-%, more preferably from 0.2 to 0.5 wt .-%, in particular from 0.2 to 0.4 wt .-%, based on the total weight of propellant-free water-in-oil emulsion, wherein the polyethylene oxide-polypropylene oxide monoallyl ether has the formula (II)

wherein
each of p and q, independently of one another, are average numbers of from 10 to 30, preferably from 12 to 25, preferably from 15 to 20, more preferably from 16 to 18, in particular 18, provided that the order of the in curved units with the indices y and z is arbitrary.

By using volatile silicone oils and volatile non-silicone oils, a drier skin feel can be achieved. The term "volatile cosmetic oil" refers according to the invention to cosmetic oils which have a vapor pressure of from 2.66 Pa to 40,000 Pa (0.02 to 300 mm Hg), preferably from 10 to 12,000 Pa, at 20 ° C. and an ambient pressure of 1013 hPa ( 0.1 to 90 mm Hg), more preferably from 13 to 3000 Pa (0.1 to 23 mm Hg), in particular from 15 to 500 Pa (0.1 to 4 mm Hg).

In order to mask insoluble constituents, such as talc or antiperspirant aluminum salts dried on the skin, it may be preferred according to the invention if the W / O emulsions contain a non-volatile silicone oil and / or a non-volatile non-silicone oil. For the purposes of the present invention, the term "non-volatile cosmetic oils" is understood to mean cosmetic oils which have a vapor pressure of less than 2.66 Pa (0.02 mm Hg) at 20 ° C. and an ambient pressure of 1013 hPa.

• (i) flüchtigen cyclischen Siliconölen, insbesondere Cyclotrisiloxan, Cyclotetrasiloxan, Cyclopentasiloxan und Cyclohexasiloxan, und linearen Siliconölen mit 2 bis 10 Siloxaneinheiten, insbesondere Hexamethyldisiloxan, Octamethyltrisiloxan, Decamethyltetrasiloxan;
• (ii) flüchtigen Nichtsiliconölen, insbesondere flüssigen Paraffinölen und Isoparaffinölen, wie Isodecan, Isoundecan, Isododecan, Isotridecan, Isotetradecan, Isopentadecan, Isohexadecan und Isoeicosan;
• (iii) nichtflüchtigen Siliconölen, insbesondere höhermolekularen linearen Polyalkylsiloxane;
• (iv) nichtflüchtigen Nichtsiliconölen, insbesondere den Estern von linearen oder verzweigten gesättigten oder ungesättigten C_2-30-Fettalkoholen mit linearen oder verzweigten gesättigten oder ungesättigten C_2-30-Fettsäuren, welche hydroxyliert sein können, den C₈-C₂₂-Fettalkoholestern einwertiger oder mehrwertiger C₂-C₇-Hydroxycarbonsäuren, den Triethylcitraten, den verzweigten gesättigten oder ungesättigten C_6-30-Fettalkoholen, den Mono-, Di- und Triglyceriden von linearen oder verzweigten, gesättigten oder ungesättigten, gegebenenfalls hydroxylierten C_8-30-Fettsäuren, den Dicarbonsäureestern von linearen oder verzweigten C₂-C₁₀-Alkanolen, den Anlagerungsprodukten von Ethylenoxid und/oder Propylenoxid an ein- oder mehrwertige C_3-22-Alkanole, welche gegebenenfalls verestert sein können, den symmetrischen, unsymmetrischen oder cyclischen Estern der Kohlensäure mit Fettalkoholen, den Estern von Dimeren ungesättigter C_12-22-Fettsäuren mit einwertigen, linearen, verzweigten und cyclischen C_2-18-Alkanolen oder C_2-6-Alkanolen, den Benzoesäureestern von linearen oder verzweigten C_8-22-Alkanolen, wie Benzoesäure-C_12-15-Alkylester und Benzoesäureisostearylester und Benzoesäureoctyldodecylester, den synthetischen Kohlenwasserstoffen, wie Polyisobuten und Polydecene, den alicyclischen Kohlenwasserstoffen; sowie
• (v) deren Mischungen.

Preferred cosmetic products are therefore characterized in that the water-in-oil emulsion additionally contains at least one at 20 ° C and 1013 hPa liquid cosmetic oil, wherein the liquid at 20 ° C and 1013 hPa liquid cosmetic oil is selected from the group of

• (i) volatile cyclic silicone oils, especially cyclotrisiloxane, cyclotetrasiloxane, cyclopentasiloxane and cyclohexasiloxane, and linear silicone oils having 2 to 10 siloxane units, especially hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane;
• (ii) volatile non-silicone oils, especially liquid paraffin oils and isoparaffin oils such as isodecane, isoundecane, isododecane, isotridecane, isotetradecane, isopentadecane, isohexadecane and isoeicosan;
• (iii) nonvolatile silicone oils, especially higher molecular weight linear polyalkylsiloxanes;
• (iv) non-volatile non-silicone oils, in particular esters of linear or branched C _2-30 saturated or unsaturated fatty alcohols with linear or branched C _2-30 saturated or unsaturated fatty acids which may be hydroxylated, monohydric C ₈ -C ₂₂ fatty alcohol esters or polyhydric C ₂ -C ₇ hydroxycarboxylic acids, the triethyl citrates, the branched saturated or unsaturated C _6-30 fatty alcohols, the mono-, di- and triglycerides of linear or branched, saturated or unsaturated, optionally hydroxylated C _8-30 fatty acids , the dicarboxylic acid esters of linear or branched C ₂ -C ₁₀ -alkanols, the addition products of ethylene oxide and / or propylene oxide to mono- or polyhydric C _3-22 -alkanols, which may optionally be esterified, the symmetrical, asymmetric or cyclic esters of carbonic acid with fatty alcohols, the esters of dimers of unsaturated C _12-22 fatty acids with monohydric linear, branched and cyclic C _2-18 -alkanols or C _2-6 -alkanols, the benzoic acid esters of linear or branched C _8-22 -alkanols, such as benzoic acid C _12-15 -alkyl ester and isostearyl benzoate and octyl dodecyl benzoate, the synthetic Hydrocarbons, such as polyisobutene and polydecenes, the alicyclic hydrocarbons; such as
• (v) their mixtures.

By using volatile silicone oils and volatile non-silicone oils, a drier skin feel can be achieved. The term "volatile cosmetic oil" refers according to the invention to cosmetic oils which have a vapor pressure of from 2.66 Pa to 40,000 Pa (0.02 to 300 mm Hg), preferably from 10 to 12,000 Pa, at 20 ° C. and an ambient pressure of 1013 hPa ( 0.1 to 90 mm Hg), more preferably from 13 to 3000 Pa (0.1 to 23 mm Hg), in particular from 15 to 500 Pa (0.1 to 4 mm Hg).

In order to mask insoluble constituents, such as talc or antiperspirant aluminum salts dried on the skin, it may be preferred according to the invention if the W / O emulsions contain a non-volatile silicone oil and / or a non-volatile non-silicone oil. For the purposes of the present invention, the term "non-volatile cosmetic oils" is understood to mean cosmetic oils which have a vapor pressure of less than 2.66 Pa (0.02 mm Hg) at 20 ° C. and an ambient pressure of 1013 hPa.

• (i) flüchtigen cyclischen Siliconölen, insbesondere Cyclotrisiloxan, Cyclotetrasiloxan, Cyclopentasiloxan und Cyclohexasiloxan, und linearen Siliconölen mit 2 bis 10 Siloxaneinheiten, insbesondere Hexamethyldisiloxan, Octamethyltrisiloxan, Decamethyltetrasiloxan;
• (ii) flüchtigen Nichtsiliconölen, insbesondere flüssigen Paraffinölen und Isoparaffinölen, wie Isodecan, Isoundecan, Isododecan, Isotridecan, Isotetradecan, Isopentadecan, Isohexadecan und Isoeicosan;
• (iii) nichtflüchtigen Siliconölen, insbesondere höhermolekularen linearen Polyalkylsiloxane;
• (iv) nichtflüchtigen Nichtsiliconölen, insbesondere den Estern von linearen oder verzweigten gesättigten oder ungesättigten C_2-30-Fettalkoholen mit linearen oder verzweigten gesättigten oder ungesättigten C_2-30-Fettsäuren, welche hydroxyliert sein können, den C₈-C₂₂-Fettalkoholestern einwertiger oder mehrwertiger C₂-C₇-Hydroxycarbonsäuren, den Triethylcitraten, den verzweigten gesättigten oder ungesättigten C_6-30-Fettalkoholen, den Mono-, Di- und Triglyceriden von linearen oder verzweigten, gesättigten oder ungesättigten, gegebenenfalls hydroxylierten C_8-30-Fettsäuren, den Dicarbonsäureestern von linearen oder verzweigten C₂-C₁₀-Alkanolen, den Anlagerungsprodukten von Ethylenoxid und/oder Propylenoxid an ein- oder mehrwertige C_3-22-Alkanole, welche gegebenenfalls verestert sein können, den symmetrischen, unsymmetrischen oder cyclischen Estern der Kohlensäure mit Fettalkoholen, den Estern von Dimeren ungesättigter C_12-22-Fettsäuren mit einwertigen, linearen, verzweigten und cyclischen C_2-18-Alkanolen oder C_2-6-Alkanolen, den Benzoesäureestern von linearen oder verzweigten C_8-22-Alkanolen, wie Benzoesäure-C_12-15-Alkylester und Benzoesäureisostearylester und Benzoesäureoctyldodecylester, den synthetischen Kohlenwasserstoffen, wie Polyisobuten und Polydecene, den alicyclischen Kohlenwasserstoffen; sowie
• (v) deren Mischungen.

Preferred cosmetic products are therefore characterized in that the water-in-oil emulsion additionally contains at least one at 20 ° C and 1013 hPa liquid cosmetic oil, wherein the liquid at 20 ° C and 1013 hPa liquid cosmetic oil is selected from the group of

• (i) volatile cyclic silicone oils, especially cyclotrisiloxane, cyclotetrasiloxane, cyclopentasiloxane and cyclohexasiloxane, and linear silicone oils having 2 to 10 siloxane units, especially hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane;
• (ii) volatile non-silicone oils, especially liquid paraffin oils and isoparaffin oils such as isodecane, isoundecane, isododecane, isotridecane, isotetradecane, isopentadecane, isohexadecane and isoeicosan;
• (iii) nonvolatile silicone oils, especially higher molecular weight linear polyalkylsiloxanes;
• (iv) non-volatile non-silicone oils, in particular esters of linear or branched C _2-30 saturated or unsaturated fatty alcohols with linear or branched C _2-30 saturated or unsaturated fatty acids which may be hydroxylated, monohydric C ₈ -C ₂₂ fatty alcohol esters or polyhydric C ₂ -C ₇ hydroxycarboxylic acids, the triethyl citrates, the branched saturated or unsaturated C _6-30 fatty alcohols, the mono-, di- and triglycerides of linear or branched, saturated or unsaturated, optionally hydroxylated C _8-30 fatty acids , the dicarboxylic acid esters of linear or branched C ₂ -C ₁₀ -alkanols, the addition products of ethylene oxide and / or propylene oxide to mono- or polyhydric C _3-22 -alkanols, which may optionally be esterified, the symmetrical, asymmetric or cyclic esters of carbonic acid with fatty alcohols, the esters of dimers of unsaturated C _12-22 fatty acids with monohydric linear, branched and cyclic C _2-18 -alkanols or C _2-6 -alkanols, the benzoic acid esters of linear or branched C _8-22 -alkanols, such as benzoic acid C _12-15 -alkyl ester and isostearyl benzoate and octyl dodecyl benzoate, the synthetic Hydrocarbons, such as polyisobutene and polydecenes, the alicyclic hydrocarbons; such as
• (v) their mixtures.

The cyclic volatile silicone oils which can be used in the context of the invention have a vapor pressure of from 13 to 30 Pa (0.1 mm Hg) at 20 ° C. and an ambient pressure of 1013 hPa. Preferred cyclic silicones are those with the INCI name Cyclometicone, in particular cyclotrisiloxane (hexamethylcyclotrisiloxane), cyclotetrasiloxane (octamethylcyclotetrasiloxane), cyclopentasiloxane (decamethylcyclopentasiloxane) and cyclohexasiloxane (dodecamethylcyclohexasiloxane), and mixtures thereof. Furthermore, according to the invention as a linear volatile silicone oil and a low molecular weight phenyl trimethicone having a vapor pressure of about 2,000 Pa (15 mm Hg) at 20 ° C and an ambient pressure of 1013 hPa can be used.

According to the invention, volatile non-silicone oils in the form of C _10-13 isoparaffin mixtures having a vapor pressure of from 10 to 400 Pa (0.08 to 3 mm Hg), preferably from 13 to 100 Pa (0.1 to 0.8 mm Hg ), at 20 ° C and an ambient pressure of 1013 hPa. It is preferred in the context of the present invention, if the volatile C ₈ -C ₁₆ isoparaffin in a total amount of 1 to 60 wt .-%, preferably from 3 to 45 wt .-%, preferably from 5 to 40 parts by weight. %, in particular from 8 to 20 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion. Of course, it is also possible, water-in-oil emulsions with a low proportion of volatile oils - that is, with 0.5 to 15 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion to volatile oils - or even to formulate without volatile oils.

In addition, it is preferred if the water-in-oil emulsions comprise at least one ester of linear or branched saturated or unsaturated fatty alcohols having 2 to 30 carbon atoms with linear or branched saturated or unsaturated fatty acids having 2 to 30 carbon atoms which may be hydroxylated a total amount of 1 to 30 wt .-%, preferably from 5 to 26 wt .-%, preferably from 9 to 24 wt .-%, in particular from 12 to 17 wt .-%, based on the total weight of the propellant-free water-in Oil emulsion.

In the context of the present invention, non-volatile silicone oils may be linear polyalkylsiloxanes having a kinematic viscosity of 2 to 2,000 cSt at 25 ° C., in particular linear polydimethylsiloxanes having a kinematic viscosity at 25 ° C. of 5 to 2,000 cSt, preferably 10 to 350 cSt, in particular from 50 to 100 cSt. The non-volatile silicone oils mentioned above are available under the tradenames Dow Corning ^® 200 or Xiameter PMX from Dow Corning or Xiameter. Further preferred nonvolatile silicone oils are phenyltrimethicones having a kinematic viscosity at 25 ° C. of from 10 to 100 cSt, preferably from 15 to 30 cSt, and also cetyldimethicones.

According to the invention, the use of mixtures of the abovementioned cosmetic oils, in particular nonvolatile and volatile cosmetic oils, is furthermore preferred, since in this way Parameters such as skin feel and visibility of the residue can be adjusted and the cosmetic product can thus be better adapted to the needs of consumers.

In the context of the present invention it is preferred if the cosmetic oil which is liquid at 20 ° C. and 1013 hPa is present in a total amount of from 0.2 to 70% by weight, preferably from 2 to 60% by weight, preferably from 3 to 50 Wt .-%, more preferably from 5 to 35 wt .-%, in particular from 8 to 20 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion.

In a further preferred embodiment of the present invention, the water-in-oil emulsions additionally comprise at least one water-soluble polyol selected from the water-soluble polyhydric C ₂ to C ₉ alkanols having 2 to 6 hydroxyl groups and / or at least one water-soluble polyethylene glycol having 3 to 20 ethylene oxide units, preferably selected from 1,2-propylene glycol, 1,3-propylene glycol, 2-methyl-1,3-propanediol, glycerol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, Pentyleneglycols such as 1,2-pentanediol and 1,5-pentanediol, hexanediols such as 1,6-hexanediol, hexanetriols such as 1,2,6-hexanetriol, 1,2-octanediol, 1,8-octanediol, dipropylene glycol, tripropylene glycol, diglycerol, Triglycerin, erythritol, sorbitol and mixtures of the aforementioned substances, and more preferably selected from 1,2-propylene glycol.

It is inventively preferred when the water-in-oil emulsion, the water-soluble polyhydric C ₂ to C ₉ alkanol having 2 to 6 hydroxyl groups and / or the water-soluble polyethylene glycol having 3 to 20 ethylene oxide units in a total amount of 0.5 to 35 wt .-%, preferably from 1.0 to 45 wt .-%, more preferably from 2 to 40 wt .-%, in particular from 10 to 35 wt .-% or 12 to 15 wt .-%, based on the Total weight of the propellant-free water-in-oil emulsion contains.

In the context of the present invention, it is preferred if the W / O emulsions contain a certain proportion of free water. For the purposes of the present invention, free water is understood to mean water which is different from water of crystallization, water of hydration or similar molecularly bound water of the constituents used, in particular the antiperspirant aluminum salts. Preferred cosmetic products are therefore characterized in that the water-in-oil emulsions free water in a total amount of 5 to 45 wt .-%, preferably from 10 to 40 wt .-%, preferably from 15 to 35 wt .-% , in particular from 20 to 30 wt .-%, based on the total weight of the blowing agent-free water-in-oil emulsions.

On the basis of the inventive combination of the two special W / O emulsifiers in the form of alkoxylated silicone emulsifiers b) and a wax in the form of hydrogenated castor oil c), it is possible to reduce the ethanol content of water-in-oil emulsions according to the invention without impairing the product properties lower, in particular without deterioration of stability and drug release. Preferred W / O emulsions therefore contain less than 4.0% by weight of ethanol, preferably less than 3.0% by weight of ethanol, preferably less than 1.0% by weight of ethanol, in particular 0% by weight of ethanol , based on the total weight of the propellant-free water-in-oil emulsion.

• (i) Estern, insbesondere Benzylacetat, Phenoxyethylisobutyrat, p-tert.-Butylcyclohexylacetat, Linalylacetat, Dimethylbenzylcarbinylacetat (DMBCA), Phenylethylacetat, Benzylacetat, Ethylmethylphenyl-glycinat, Allylcyclohexylpropionat, Styrallylpropionat, Benzylsalicylat, Cyclohexylsalicylat, Floramat, Melusat und Jasmecyclat;
• (ii) Ethern, insbesondere Benzylethylether und Ambroxan;
• (iii) Aldehyden, insbesondere linearen Alkanale mit 8 bis 18 Kohlenstoffatomen, Citral, Citronellal, Citronellyloxy-acetaldehyd, Cyclamenaldehyd, Lilial und Bourgeonal;
• (iv) Ketonen, insbesondere Jonone, alpha-Isomethylionon und Methylcedrylketon;
• (v) Alkoholen, insbesondere Anethol, Citronellol, Eugenol, Geraniol, Linalool, Phenylethylalkohol und Terpineol;
• (vi) Kohlenwasserstoffen, insbesondere Terpene wie Limonen und Pinen; sowie
• (vii) deren Mischungen.

In order to obtain nicely smelling cosmetic products, the water-in-oil emulsions may additionally contain at least one fragrance. For the purposes of the present invention, the term "fragrances" means substances having a molecular weight of 74 to 300 g / mol, which contain at least one osmophoric group in the molecule and have an odor and / or taste, ie they are capable of To excite receptors of the hair cells of the olfactory system. Osmophore groups are covalently bonded to the molecular skeleton groups in the form of hydroxyl groups, formyl groups, oxo groups, alkoxycarbonyl groups, nitrile groups, nitro groups, azide groups, etc. In this context, the term "fragrances" within the meaning of the present invention also at 20 ° C and 1013 hPa liquid perfume oils, perfumes, or perfume oil ingredients. The fragrance may preferably be selected from the group of

• (i) esters, in particular benzyl acetate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinylacetate (DMBCA), phenylethylacetate, benzylacetate, ethylmethylphenylglycinate, allylcyclohexylpropionate, styrallylpropionate, benzylsalicylate, cyclohexylsalicylate, floramate, melusate and jasmecyclate;
• (ii) ethers, especially benzyl ethyl ether and ambroxan;
• (iii) aldehydes, especially linear alkanals of 8 to 18 carbon atoms, citral, citronellal, citronellyloxy-acetaldehyde, cyclamen aldehyde, lilial and bourgeonal;
• (iv) ketones, especially ionone, alpha-isomethylionone and methyl cedryl ketone;
• (v) alcohols, especially anethole, citronellol, eugenol, geraniol, linalool, phenylethyl alcohol and terpineol;
• (vi) hydrocarbons, in particular terpenes such as limonene and pinene; such as
• (vii) their mixtures.

However, mixtures of different fragrances are preferably used, which together produce an appealing scent.

Particularly pleasant smelling W / O emulsions or cosmetic products according to the invention are obtained when the water-in-oil emulsions additionally at least one fragrance in a total amount of 0.00001 to 10 wt .-%, preferably from 0.001 to 9 wt. %, preferably from 0.01 to 8 wt .-%, more preferably from 0.5 to 7 wt .-%, in particular from 1 to 6 wt .-%, based on the total weight of the propellant-free water-in-oil Emulsion, included.

In addition, it can also be provided in the context of the present invention that the water-in-oil emulsions additionally contain at least one preservative in order to ensure adequate microbiological protection and longer storage and application periods. Preservatives which are preferred according to the invention are formaldehyde releasers (such as, for example, 1,3-dimethylol-4,4-dimethylhydantoin, INCI name DMDM hydantoin, available, for example, under the trade name Glydant from Lonza), iodopropynyl butylcarbamates, such as 3-iodo 2-propynyl butylcarbamate (e.g., those available under the trade names Glycacil-L, Glycacil-S from Lonza, and / or Dekaben LMB from Jan Dekker), parabens (ie, p-hydroxybenzoic acid alkyl esters, such as methyl, ethyl, propyl, and / or butylparaben), phenoxyethanol, ethanol, benzoic acid, dibromodicyanobutane (2-bromo-2-bromomethylglutarodinitrile), 2-bromo-2-nitro-propane-1,3-diol, imidazolidinylurea, 5-chloro-2-methyl-4 -isothiazolin-3-one, 2-chloroacetamide, benzalkonium chloride, benzyl alcohol, salicylic acid and salicylates. Particularly preferred are water-in-oil emulsions which additionally contain at least one preservative selected from parabens (methyl, ethyl, propyl and / or butylparaben) and / or phenoxyethanol.

To ensure adequate preservation, the preservatives are preferably used in certain total amounts. In the context of the present invention, it is preferred if the water-in-oil emulsions additionally contain at least one preservative in a total amount of from 0.01 to 3.0% by weight, preferably from 0.1 to 1.5% by weight. %, in particular from 0.2 to 1.0 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion.

• – mindestens ein schweißhemmendes Aluminiumsalz in einer Gesamtmenge von 2 bis 40 Gew.-%, vorzugsweise von 3 bis 38 Gew.-%, bevorzugt von 4 bis 35 Gew.-%, weiter bevorzugt von 5 bis 32 Gew.-%, noch mehr bevorzugt von 8 bis 30 Gew.-%, insbesondere von 12 bis 25 Gew.-%,
• – mindestens ein Siliconpolymer der Formel (I) in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,5 bis 3,0 Gew.-%, weiter bevorzugt von 0,8 bis 2,5 Gew.-%, noch mehr bevorzugt von 1,1 bis 2,0 Gew.-%, insbesondere von 1,3 bis 1,8 Gew.-%,
• – mindestens ein Wachs, ausgewählt aus hydriertem Rizinusöl in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,6 bis 2,0 Gew.-%, insbesondere von 0,8 bis 2,0 Gew.-%,
• – 5 bis 45 Gew.-%, vorzugsweise von 10 bis 40 Gew.-%, bevorzugt von 15 bis 35 Gew.-%, insbesondere von 20 bis 30 Gew.-% freies Wasser, und
• – weniger als 4 Gew.-%, vorzugsweise weniger als 3 Gew.-%, bevorzugt weniger als 1 Gew.-%, insbesondere 0 Gew.-%, Ethanol,

enthalten. In a preferred embodiment, the water-in-oil emulsions are characterized in that they contain, based on the total weight of the propellant-free water-in-oil emulsion,

• - At least one antiperspirant aluminum salt in a total amount of 2 to 40 wt .-%, preferably from 3 to 38 wt .-%, preferably from 4 to 35 wt .-%, more preferably from 5 to 32 wt .-%, even more preferably from 8 to 30% by weight, in particular from 12 to 25% by weight,
• - At least one silicone polymer of the formula (I) in a total amount of 0.01 to 5.0 wt .-%, preferably from 0.1 to 4.0 wt .-%, preferably from 0.5 to 3.0 wt. %, more preferably from 0.8 to 2.5% by weight, even more preferably from 1.1 to 2.0% by weight, in particular from 1.3 to 1.8% by weight,
• At least one wax selected from hydrogenated castor oil in a total amount of from 0.01 to 5.0% by weight, preferably from 0.1 to 4.0% by weight, preferably from 0.6 to 2.0% by weight. %, in particular from 0.8 to 2.0% by weight,
• From 5 to 45% by weight, preferably from 10 to 40% by weight, preferably from 15 to 35% by weight, in particular from 20 to 30% by weight, of free water, and
• Less than 4% by weight, preferably less than 3% by weight, preferably less than 1% by weight, in particular 0% by weight, of ethanol,

contain.

• – mindestens ein schweißhemmendes Aluminiumsalz in einer Gesamtmenge von 2 bis 40 Gew.-%, vorzugsweise von 3 bis 38 Gew.-%, bevorzugt von 4 bis 35 Gew.-%, weiter bevorzugt von 5 bis 32 Gew.-%, noch mehr bevorzugt von 8 bis 30 Gew.-%, insbesondere von 12 bis 25 Gew.-%,
• – mindestens ein Siliconpolymer der Formel (Ia) in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,5 bis 3,0 Gew.-%, weiter bevorzugt von 0,8 bis 2,5 Gew.-%, noch mehr bevorzugt von 1,1 bis 2,0 Gew.-%, insbesondere von 1,3 bis 1,8 Gew.-%,
• – mindestens ein Wachs, ausgewählt aus hydriertem Rizinusöl in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,6 bis 2,0 Gew.-%, insbesondere von 0,8 bis 2,0 Gew.-%, wobei das hydrierte Rizinusöl eine Iodzahl in g I₂ pro 100 g Wachs von 0,5 bis 60, vorzugsweise von 1 bis 55, bevorzugt von 1,5 bis 50, insbesondere von 2 bis 45, aufweist,
• – 5 bis 45 Gew.-%, vorzugsweise von 10 bis 40 Gew.-%, bevorzugt von 15 bis 35 Gew.-%, insbesondere von 20 bis 30 Gew.-% freies Wasser, und
• – weniger als 4 Gew.-%, vorzugsweise weniger als 3 Gew.-%, bevorzugt weniger als 1 Gew.-%, insbesondere 0 Gew.-%, Ethanol,

enthalten. According to a further preferred embodiment, the water-in-oil emulsions are characterized in that they contain, based on the total weight of the propellant-free water-in-oil emulsion,

• - At least one antiperspirant aluminum salt in a total amount of 2 to 40 wt .-%, preferably from 3 to 38 wt .-%, preferably from 4 to 35 wt .-%, more preferably from 5 to 32 wt .-%, even more preferably from 8 to 30% by weight, in particular from 12 to 25% by weight,
• - At least one silicone polymer of the formula (Ia) in a total amount of 0.01 to 5.0 wt .-%, preferably from 0.1 to 4.0 wt .-%, preferably from 0.5 to 3.0 wt. %, more preferably from 0.8 to 2.5% by weight, even more preferably from 1.1 to 2.0% by weight, in particular from 1.3 to 1.8% by weight,
• At least one wax selected from hydrogenated castor oil in a total amount of from 0.01 to 5.0% by weight, preferably from 0.1 to 4.0% by weight, preferably from 0.6 to 2.0% by weight. %, in particular from 0.8 to 2.0 wt .-%, wherein the hydrogenated castor oil has an iodine value in g I ₂ per 100 g of wax from 0.5 to 60, preferably from 1 to 55, preferably from 1.5 to 50, in particular from 2 to 45,
• From 5 to 45% by weight, preferably from 10 to 40% by weight, preferably from 15 to 35% by weight, in particular from 20 to 30% by weight, of free water, and
• Less than 4% by weight, preferably less than 3% by weight, preferably less than 1% by weight, in particular 0% by weight, of ethanol,

contain.

• – mindestens ein schweißhemmendes Aluminiumsalz in einer Gesamtmenge von 2 bis 40 Gew.-%, vorzugsweise von 3 bis 38 Gew.-%, bevorzugt von 4 bis 35 Gew.-%, weiter bevorzugt von 5 bis 32 Gew.-%, noch mehr bevorzugt von 8 bis 30 Gew.-%, insbesondere von 12 bis 25 Gew.-%,
• – mindestens ein Siliconpolymer der Formel (I) in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,5 bis 3,0 Gew.-%, weiter bevorzugt von 0,8 bis 2,5 Gew.-%, noch mehr bevorzugt von 1,1 bis 2,0 Gew.-%, insbesondere von 1,3 bis 1,8 Gew.-%,
• – mindestens ein Wachs, ausgewählt aus hydriertem Rizinusöl in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,6 bis 2,0 Gew.-%, insbesondere von 0,8 bis 2,0 Gew.-%,
• – 5 bis 45 Gew.-%, vorzugsweise von 10 bis 40 Gew.-%, bevorzugt von 15 bis 35 Gew.-%, insbesondere von 20 bis 30 Gew.-% freies Wasser,
• – mindestens ein wasserlösliches C₂ bis C₉-Alkanol in einer Gesamtmenge von 0,5 bis 45 Gew.-%, bevorzugt von 1,0 bis 40 Gew.-%, weiter bevorzugt von 2 bis 35 Gew.-%, insbesondere von 10 bis 30 Gew.-%,
• – mindestens einen Ester von linearen oder verzweigten gesättigten oder ungesättigten C_2-30-Fettalkoholen mit linearen oder verzweigten gesättigten oder ungesättigten C_2-30-Fettsäuren in einer Gesamtmenge von 0,2 bis 70 Gew.-%, vorzugsweise von 2 bis 60 Gew.-%, bevorzugt von 3 bis 50 Gew.-%, weiter bevorzugt von 5 bis 35 Gew.-%, insbesondere von 8 bis 20 Gew.-%,
• – mindestens ein flüchtiges cyclisches Siliconöl in einer Gesamtmenge von 0,2 bis 70 Gew.-%, vorzugsweise von 2 bis 60 Gew.-%, bevorzugt von 3 bis 50 Gew.-%, weiter bevorzugt von 5 bis 35 Gew.-%, insbesondere von 8 bis 20 Gew.-%, und
• – weniger als 4 Gew.-%, vorzugsweise weniger als 3 Gew.-%, bevorzugt weniger als 1 Gew.-%, insbesondere 0 Gew.-%, Ethanol,

enthalten. According to a further preferred embodiment, the water-in-oil emulsions are characterized in that they contain, based on the total weight of the propellant-free water-in-oil emulsion,

• - At least one antiperspirant aluminum salt in a total amount of 2 to 40 wt .-%, preferably from 3 to 38 wt .-%, preferably from 4 to 35 wt .-%, more preferably from 5 to 32 wt .-%, even more preferably from 8 to 30% by weight, in particular from 12 to 25% by weight,
• - At least one silicone polymer of the formula (I) in a total amount of 0.01 to 5.0 wt .-%, preferably from 0.1 to 4.0 wt .-%, preferably from 0.5 to 3.0 wt. %, more preferably from 0.8 to 2.5% by weight, even more preferably from 1.1 to 2.0% by weight, in particular from 1.3 to 1.8% by weight,
• At least one wax selected from hydrogenated castor oil in a total amount of from 0.01 to 5.0% by weight, preferably from 0.1 to 4.0% by weight, preferably from 0.6 to 2.0% by weight. %, in particular from 0.8 to 2.0% by weight,
• From 5 to 45% by weight, preferably from 10 to 40% by weight, preferably from 15 to 35% by weight, in particular from 20 to 30% by weight, of free water,
• - At least one water-soluble C ₂ to C ₉ alkanol in a total amount of 0.5 to 45 wt .-%, preferably from 1.0 to 40 wt .-%, more preferably from 2 to 35 wt .-%, in particular of 10 to 30% by weight,
• - At least one ester of linear or branched saturated or unsaturated C _2-30 fatty alcohols with linear or branched saturated or unsaturated C _2-30 fatty acids in a total amount of 0.2 to 70 wt .-%, preferably from 2 to 60 wt .-%, preferably from 3 to 50 wt .-%, more preferably from 5 to 35 wt .-%, in particular from 8 to 20 wt .-%,
• At least one volatile cyclic silicone oil in a total amount of from 0.2 to 70% by weight, preferably from 2 to 60% by weight, preferably from 3 to 50% by weight, more preferably from 5 to 35% by weight , in particular from 8 to 20 wt .-%, and
• Less than 4% by weight, preferably less than 3% by weight, preferably less than 1% by weight, in particular 0% by weight, of ethanol,

contain.

• – mindestens ein schweißhemmendes Aluminiumsalz in einer Gesamtmenge von 2 bis 40 Gew.-%, vorzugsweise von 3 bis 38 Gew.-%, bevorzugt von 4 bis 35 Gew.-%, weiter bevorzugt von 5 bis 32 Gew.-%, noch mehr bevorzugt von 8 bis 30 Gew.-%, insbesondere von 12 bis 25 Gew.-%,
• – mindestens ein Siliconpolymer der Formel (Ia) in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,5 bis 3,0 Gew.-%, weiter bevorzugt von 0,8 bis 2,5 Gew.-%, noch mehr bevorzugt von 1,1 bis 2,0 Gew.-%, insbesondere von 1,3 bis 1,8 Gew.-%,
• – mindestens ein Wachs, ausgewählt aus hydriertem Rizinusöl in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,6 bis 2,0 Gew.-%, insbesondere von 0,8 bis 2,0 Gew.-%, wobei das hydrierte Rizinusöl eine Iodzahl in g I₂ pro 100 g Wachs von 0,5 bis 60, vorzugsweise von 1 bis 55, bevorzugt von 1,5 bis 50, insbesondere von 2 bis 45, aufweist,
• – 5 bis 45 Gew.-%, vorzugsweise von 10 bis 40 Gew.-%, bevorzugt von 15 bis 35 Gew.-%, insbesondere von 20 bis 30 Gew.-% freies Wasser,
• – mindestens ein wasserlösliches C₂ bis C₉-Alkanol in einer Gesamtmenge von 0,5 bis 45 Gew.-%, bevorzugt von 1,0 bis 40 Gew.-%, weiter bevorzugt von 2 bis 35 Gew.-%, insbesondere von 10 bis 30 Gew.-%,
• – mindestens einen Ester von linearen oder verzweigten gesättigten oder ungesättigten C_2-30-Fettalkoholen mit linearen oder verzweigten gesättigten oder ungesättigten C_2-30-Fettsäuren in einer Gesamtmenge von 0,2 bis 70 Gew.-%, vorzugsweise von 2 bis 60 Gew.-%, bevorzugt von 3 bis 50 Gew.-%, weiter bevorzugt von 5 bis 35 Gew.-%, insbesondere von 8 bis 20 Gew.-%,
• – mindestens ein flüchtiges cyclisches Siliconöl in einer Gesamtmenge von 0,2 bis 70 Gew.-%, vorzugsweise von 2 bis 60 Gew.-%, bevorzugt von 3 bis 50 Gew.-%, weiter bevorzugt von 5 bis 35 Gew.-%, insbesondere von 8 bis 20 Gew.-%, und
• – weniger als 4 Gew.-%, vorzugsweise weniger als 3 Gew.-%, bevorzugt weniger als 1 Gew.-%, insbesondere 0 Gew.-%, Ethanol,

enthalten. According to a further preferred embodiment, the water-in-oil emulsions are characterized in that they contain, based on the total weight of the propellant-free water-in-oil emulsion,

• - At least one antiperspirant aluminum salt in a total amount of 2 to 40 wt .-%, preferably from 3 to 38 wt .-%, preferably from 4 to 35 wt .-%, more preferably from 5 to 32 wt .-%, even more preferably from 8 to 30% by weight, in particular from 12 to 25% by weight,
• - At least one silicone polymer of the formula (Ia) in a total amount of 0.01 to 5.0 wt .-%, preferably from 0.1 to 4.0 wt .-%, preferably from 0.5 to 3.0 wt. %, more preferably from 0.8 to 2.5% by weight, even more preferably from 1.1 to 2.0% by weight, in particular from 1.3 to 1.8% by weight,
• At least one wax selected from hydrogenated castor oil in a total amount of from 0.01 to 5.0% by weight, preferably from 0.1 to 4.0% by weight, preferably from 0.6 to 2.0% by weight. %, in particular from 0.8 to 2.0 wt .-%, wherein the hydrogenated castor oil has an iodine value in g I ₂ per 100 g of wax from 0.5 to 60, preferably from 1 to 55, preferably from 1.5 to 50, in particular from 2 to 45,
• From 5 to 45% by weight, preferably from 10 to 40% by weight, preferably from 15 to 35% by weight, in particular from 20 to 30% by weight, of free water,
• - At least one water-soluble C ₂ to C ₉ alkanol in a total amount of 0.5 to 45 wt .-%, preferably from 1.0 to 40 wt .-%, more preferably from 2 to 35 wt .-%, in particular of 10 to 30% by weight,
• - At least one ester of linear or branched saturated or unsaturated C _2-30 fatty alcohols with linear or branched saturated or unsaturated C _2-30 fatty acids in a total amount of 0.2 to 70 wt .-%, preferably from 2 to 60 wt .-%, preferably from 3 to 50 wt .-%, more preferably from 5 to 35 wt .-%, in particular from 8 to 20 wt .-%,
• At least one volatile cyclic silicone oil in a total amount of from 0.2 to 70% by weight, preferably from 2 to 60% by weight, preferably from 3 to 50% by weight, more preferably from 5 to 35% by weight , in particular from 8 to 20 wt .-%, and
• Less than 4% by weight, preferably less than 3% by weight, preferably less than 1% by weight, in particular 0% by weight, of ethanol,

contain.

Due to the formulation of the cosmetic product as an aerosol, this contains at least one propellant. The propellant is preferably selected from the group of propane, propene, n-butane, isobutane, isobutene, n-pentane, pentene, iso-pentane, iso-pentene, methane, ethane, dimethyl ether, nitrogen, air, oxygen , Nitrous oxide, 1,1,1,3-tetrafluoroethane, heptafluoro-n-propane, perfluoroethane, monochlorodifluoromethane, 1,1-difluoroethane, tetrafluoropropenes and mixtures thereof.

To ensure the sprayability of the cosmetic product as an aerosol, a certain total amount of blowing agent must be used. Preferred cosmetic products are therefore characterized in that the cosmetic product contains the blowing agent in a total amount of from 20 to 95% by weight, preferably from 30 to 85% by weight, in particular from 40 to 80% by weight, based on the total weight of the blowing agent-containing water. in-oil emulsion.

The cosmetic product further comprises an aerosol dispenser. This can be in the form of a compressed gas tank. As pressure gas containers are vessels made of metal (aluminum, tinplate, tin), protected or non-splitterndem plastic or glass, which is coated with plastic on the outside, in question, in their selection pressure and fracture resistance, corrosion resistance, easy fillability as well as aesthetic Aspects, handiness, printability etc. play a role. Special internal protective lacquers ensure corrosion resistance to the water-in-oil emulsion.

Despite the water phase in the aerosol container, the cosmetic products according to the invention have a particularly high corrosion resistance, which represents a great advantage over the prior art. Furthermore, the water-in-oil emulsions used according to the invention have excellent skin tolerability, storage stability and release of active ingredient. It is particularly advantageous that the sprayed cosmetic products are characterized by a pleasant, non-sticky skin feel on the skin and ensure rapid release of active ingredient.

In a preferred embodiment of the invention, the valve has a coated with a paint or a polymeric plastic A valve disk and a similar flexible element with a return characteristic that the valve after completion of the operation in the closed position (= rest position of the valve) resets. Corresponding cosmetic products in which the aerosol dispenser comprises a valve having a poppet and / or a returnable flexible element coated with a lacquer or a polymeric plastic A are preferred in the present invention.

In a further preferred embodiment of the invention, the valve has a flexible element with a return characteristic and / or a valve disk of at least one plastic B, preferably an elastomeric plastic. Here too, cosmetic products according to the invention are preferred in which the valve has a flexible element with a return characteristic and / or a valve cone made of at least one plastic B, with preferred plastics B being elastomeric plastics. Particularly preferred elastomeric plastics are selected from Buna, in particular Buna N, Buna 421, Buna 1602 and Buna KA 6712, neoprene, butyl and chlorobutyl.

In a further preferred embodiment of the invention, the flexible element with return characteristic can be formed as a spiral spring or helical compression spring. In a further preferred embodiment of the invention, the flexible element with return characteristic can be formed integrally with the valve cone and have flexible legs. This spring can be made of metal or plastic. In addition, the valve cone and the flexible element may be formed with a return characteristic.

All valves used preferably have an internally coated valve disk, wherein the coating and valve material are compatible with each other. If aluminum valves are used according to the invention, their valve disks can be internally z. B. be coated with Micoflex paint. If tinplate valves are used according to the invention, their valve disks can be internally z. B. be coated with PET (polyethylene terephthalate). The containers used, which may be, for example, tinplate or aluminum, wherein Aluminum containers are preferred according to the invention, preferably also have an inner coating or an inner coating. An inner protective lacquer which is preferred according to the invention is an epoxy phenolic lacquer.

• a) mindestens ein Siliconpolymer der Formel (I), und
  
  worin R₁ und R₂, jeweils unabhängig voneinander, für Wasserstoff oder eine Methylgruppe stehen, R₃ für eine Alkylgruppe mit 1 bis 4 Kohlenstoffatomen steht, x für ganze Zahlen von 1 bis 5 steht, y und z, jeweils unabhängig voneinander für mittlere Zahlenwerte von 10 bis 30 stehen, n für ganze Zahlen von 1 bis 500 steht, und m für ganze Zahlen von 1 bis 100 steht, mit der Maßgabe, dass die Reihenfolge der in den geschwungenen Klammern stehenden Einheiten mit den Indices n, m, y und z beliebig ist,
• b) mindestens einem Wachs, ausgewählt aus hydriertem Rizinusöl, in Wasser-in-Öl-Emulsionen zur Erhöhung der Freisetzung von kosmetischen Wirkstoffen, insbesondere schweißhemmenden Wirkstoffen.

As stated at the outset, the cosmetic products according to the invention are suitable for treating the skin, in particular the skin of the armpit. These cosmetic products are distinguished by an improved release of active ingredient, in particular an improved antiperspirant or deodorant performance, and a high stability. Another object of the present invention is therefore the use of a combination of

• a) at least one silicone polymer of the formula (I), and
  
  wherein R ₁ and R ₂ each independently represent hydrogen or a methyl group, R _{3 represents} an alkyl group of 1 to 4 carbon atoms, x represents integers of 1 to 5, y and z each independently represent average numbers from 10 to 30, n stands for integers from 1 to 500, and m stands for integers from 1 to 100, with the proviso that the order of the units in the curly brackets with the indices n, m, y and z is arbitrary,
• b) at least one wax, selected from hydrogenated castor oil, in water-in-oil emulsions to increase the release of cosmetic active ingredients, in particular antiperspirant active ingredients.

With respect to further embodiments of this subject matter of the invention mutatis mutandis applies to the cosmetic product according to the invention.

As stated at the outset, the cosmetic products according to the invention are suitable for the treatment of underarm wetness and body odor. These cosmetic products are distinguished by an improved release of active ingredient, in particular an improved antiperspirant or deodorant performance. Another object of the present application is therefore a non-therapeutic cosmetic method for preventing and / or reducing the transpiration of the body, in which a cosmetic product according to the invention in the form of an aerosol on the skin, in particular on the skin of the armpits, is applied and for at least 1 hour, preferably for at least 2 hours, preferably for at least 4 hours, in particular for at least 6 hours, remains on the skin of the armpits.

With regard to further embodiments of this subject matter of the invention, what has been said about the cosmetic product according to the invention and the use according to the invention applies mutatis mutandis.

• 1. Kosmetisches Produkt, umfassend – eine Wasser-in-Öl-Emulsion, enthaltend a) mindestens einen kosmetischen Wirkstoff, b) mindestens ein Siliconpolymer der Formel (I), und
  
  worin R₁ und R₂, jeweils unabhängig voneinander, für Wasserstoff oder eine Methylgruppe stehen, R₃ für eine Alkylgruppe mit 1 bis 4 Kohlenstoffatomen steht, x für ganze Zahlen von 1 bis 5 steht, y und z, jeweils unabhängig voneinander für mittlere Zahlenwerte von 10 bis 30 stehen, n für ganze Zahlen von 1 bis 500 steht, und m für ganze Zahlen von 1 bis 100 steht, mit der Maßgabe, dass die Reihenfolge der in den geschwungenen Klammern stehenden Einheiten mit den Indices n, m, y und z beliebig ist, und c) mindestens ein Wachs, ausgewählt aus hydriertem Rizinusöl, – mindestens ein Treibmittel, und – eine Aerosol-Abgabevorrichtung.
• 2. Kosmetisches Produkt nach Punkt 1, dadurch gekennzeichnet, dass der mindestens eine kosmetische Wirkstoff a) ausgewählt ist aus der Gruppe der schweißhemmenden Wirkstoffe, insbesondere der schweißhemmenden Aluminiumsalze.
• 3. Kosmetisches Produkt nach einem der Punkte 1 oder 2, dadurch gekennzeichnet, dass die Wasser-in-Öl-Emulsion den mindestens einen kosmetischen Wirkstoff a) in einer Gesamtmenge von 2 bis 40 Gew.-%, vorzugsweise von 3 bis 38 Gew.-%, bevorzugt von 4 bis 35 Gew.-%, weiter bevorzugt von 5 bis 32 Gew.-%, noch mehr bevorzugt von 8 bis 30 Gew.-%, insbesondere von 12 bis 25 Gew.-%, bezogen auf das Gesamtgewicht der treibmittelfreien Wasser-in-Öl-Emulsion, enthält.
• 4. Kosmetisches Produkt nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass in der Formel (I) die Reste R₁, R₂ und R₃ jeweils für eine Methylgruppe stehen.
• 5. Kosmetisches Produkt nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass in der Formel (I) x für ganze Zahlen von 1 bis 4, insbesondere 2 bis 3 steht und y und z, jeweils unabhängig voneinander, für mittlere Zahlenwerte von 12 bis 25, vorzugsweise von 15 bis 20, insbesondere von 16 bis 18, stehen.
• 6. Kosmetisches Produkt nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass die Wasser-in-Öl-Emulsion mindestens ein Siliconpolymer der Formel (Ia)
  
  worin n für ganze Zahlen von 1 bis 400, vorzugsweise von 1 bis 300, bevorzugt von 1 bis 200, insbesondere von 1 bis 100, steht, und m für ganze Zahlen von 1 bis 80, vorzugsweise von 1 bis 60, insbesondere von 1 bis 40, steht, y und z, jeweils unabhängig voneinander, für mittlere Zahlenwerte von 18 stehen, mit der Maßgabe, dass die Reihenfolge der in den geschwungenen Klammern stehenden Einheiten mit den Indices n, m, y und z beliebig ist, enthält.
• 7. Kosmetisches Produkt nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass die Wasser-in-Öl-Emulsion das mindestens eine Siliconpolymer b) der Formel (I) in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,5 bis 3,0 Gew.-%, weiter bevorzugt von 0,8 bis 2,5 Gew.-%, noch mehr bevorzugt von 1,1 bis 2,0 Gew.-%, insbesondere von 1,3 bis 1,8 Gew.-%, bezogen auf das Gesamtgewicht der treibmittelfreien Wasser-in-Öl-Emulsion, enthält.
• 8. Kosmetisches Produkt nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass das Wachs c) eine Verseifungszahl in mg KOH pro g Wachs c) von 130 bis 250, vorzugsweise von 140 bis 230, bevorzugt von 150 bis 210, insbesondere von 160 bis 190, aufweist.
• 9. Kosmetisches Produkt nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass das Wachs c) eine Hydroxylzahl in mg KOH pro g Wachs c) von 100 bis 200 mg, vorzugsweise von 120 bis 180, bevorzugt von 130 bis 170, insbesondere von 140 bis 165, aufweist.
• 10. Kosmetisches Produkt nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass das Wachs c) eine Iodzahl in g I₂ pro 100 g Wachs c) von 0,5 bis 60, vorzugsweise von 1 bis 55, bevorzugt von 1,5 bis 50, insbesondere von 2 bis 45, aufweist.
• 11. Kosmetisches Produkt nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass die Wasser-in-Öl-Emulsion das mindestens eine Wachs c) in einer Gesamtmenge von 0,01 bis 5,0 Gew.-%, vorzugsweise von 0,1 bis 4,0 Gew.-%, bevorzugt von 0,6 bis 2,0 Gew.-%, insbesondere von 0,8 bis 2,0 Gew.-%, bezogen auf das Gesamtgewicht der treibmittelfreien Wasser-in-Öl-Emulsion, enthält.
• 12. Kosmetisches Produkt, nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass die Wasser-in-Öl-Emulsion – mindestens ein Siliconpolymer der Formel (Ia),
  
  worin n für ganze Zahlen von 1 bis 400, vorzugsweise von 1 bis 300, bevorzugt von 1 bis 200, insbesondere von 1 bis 100, steht, und m für ganze Zahlen von 1 bis 80, vorzugsweise von 1 bis 60, insbesondere von 1 bis 40, steht, y und z, jeweils unabhängig voneinander, für mittlere Zahlenwerte von 18 stehen, mit der Maßgabe, dass die Reihenfolge der in den geschwungenen Klammern stehenden Einheiten mit den Indices n, m, y und z beliebig ist, und – mindestens ein Wachs, ausgewählt aus hydriertem Rizinusöl, enthält.
• 13. Kosmetisches Produkt nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass das kosmetische Produkt das Treibmittel in einer Gesamtmenge von 20 bis 95 Gew.%, vorzugsweise 30 bis 85 Gew.%, insbesondere 40 bis 80 Gew.-%, bezogen auf das Gesamtgewicht der treibmittelhaltigen Wasser-in-Öl-Emulsion, enthält.
• 14. Verwendung einer Kombination aus a) mindestens ein Siliconpolymer der Formel (I), und
  
  worin R₁ und R₂, jeweils unabhängig voneinander, für Wasserstoff oder eine Methylgruppe stehen, R₃ für eine Alkylgruppe mit 1 bis 4 Kohlenstoffatomen steht, x für ganze Zahlen von 1 bis 5 steht, y und z, jeweils unabhängig voneinander für mittlere Zahlenwerte von 10 bis 30 stehen, n für ganze Zahlen von 1 bis 500 steht, und m für ganze Zahlen von 1 bis 100 steht, mit der Maßgabe, dass die Reihenfolge der in den geschwungenen Klammern stehenden Einheiten mit den Indices n, m, y und z beliebig ist, b) mindestens einem Wachs, ausgewählt aus hydriertem Rizinusöl, in Wasser-in-Öl-Emulsionen zur Erhöhung der Freisetzung von kosmetischen Wirkstoffen, insbesondere schweißhemmenden Wirkstoffen.
• 15. Nicht-therapeutisches kosmetisches Verfahren zur Verhinderung und/oder Reduzierung der Transpiration des Körpers, bei welchem ein kosmetisches Produkt nach einem der Punkte 1 bis 13 in Form eines Aerosols auf die Haut, insbesondere auf die Haut der Achselhöhlen, aufgetragen wird und für mindestens 1 Stunde, vorzugsweise für mindestens 2 Stunden, bevorzugt für mindestens 4 Stunden, insbesondere für mindestens 6 Stunden, auf der Haut der Achselhöhlen verbleibt.

The present invention is outlined in particular by the following points:

• 1. A cosmetic product comprising - a water-in-oil emulsion containing a) at least one cosmetic active ingredient, b) at least one silicone polymer of the formula (I), and
  
  wherein R ₁ and R ₂ each independently represent hydrogen or a methyl group, R _{3 represents} an alkyl group of 1 to 4 carbon atoms, x represents integers of 1 to 5, y and z each independently represent average numbers from 10 to 30, n stands for integers from 1 to 500, and m stands for integers from 1 to 100, with the proviso that the order of the units in the curly brackets having the indices n, m, y and z is arbitrary, and c) at least one wax selected from hydrogenated castor oil, - at least one propellant, and - an aerosol dispenser ,
• 2. Cosmetic product according to item 1, characterized in that the at least one cosmetic active ingredient a) is selected from the group of antiperspirant active ingredients, in particular the antiperspirant aluminum salts.
• 3. Cosmetic product according to one of the items 1 or 2, characterized in that the water-in-oil emulsion containing the at least one cosmetic active ingredient a) in a total amount of 2 to 40 wt .-%, preferably from 3 to 38 wt. -%, preferably from 4 to 35 wt .-%, more preferably from 5 to 32 wt .-%, even more preferably from 8 to 30 wt .-%, in particular from 12 to 25 wt .-%, based on the total weight the propellant-free water-in-oil emulsion contains.
• 4. Cosmetic product according to one of the preceding points, characterized in that in the formula (I) the radicals R ₁ , R ₂ and R _{3 are} each a methyl group.
• 5. Cosmetic product according to one of the preceding points, characterized in that in the formula (I) x stands for integers from 1 to 4, in particular 2 to 3 and y and z, each independently, for average numerical values from 12 to 25 , preferably from 15 to 20, especially from 16 to 18, stand.
• 6. Cosmetic product according to one of the preceding points, characterized in that the water-in-oil emulsion comprises at least one silicone polymer of the formula (Ia)
  
  wherein n is an integer from 1 to 400, preferably from 1 to 300, preferably from 1 to 200, in particular from 1 to 100, and m is an integer from 1 to 80, preferably from 1 to 60, in particular from 1 to 40, y, and z, each independently, represent mean numerical values of 18, with the proviso that the order of the units in the curly brackets having the indices n, m, y, and z is arbitrary.
• 7. Cosmetic product according to one of the preceding points, characterized in that the water-in-oil emulsion, the at least one silicone polymer b) of the formula (I) in a total amount of 0.01 to 5.0 wt .-%, preferably from 0.1 to 4.0 wt%, preferably from 0.5 to 3.0 wt%, more preferably from 0.8 to 2.5 wt%, even more preferably from 1.1 to 2.0 wt .-%, in particular from 1.3 to 1.8 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion contains.
• 8. Cosmetic product according to one of the preceding points, characterized in that the wax c) a saponification number in mg KOH per g wax c) from 130 to 250, preferably from 140 to 230, preferably from 150 to 210, in particular from 160 to 190 , having.
• 9. Cosmetic product according to one of the preceding points, characterized in that the wax c) has a hydroxyl number in mg KOH per g wax c) of 100 to 200 mg, preferably from 120 to 180, preferably from 130 to 170, in particular from 140 to 165, has.
• 10. Cosmetic product according to one of the preceding points, characterized in that the wax c) an iodine value in g I ₂ per 100 g wax c) from 0.5 to 60, preferably from 1 to 55, preferably from 1.5 to 50 , in particular from 2 to 45, having.
• 11. Cosmetic product according to one of the preceding points, characterized in that the water-in-oil emulsion containing the at least one wax c) in a total amount of 0.01 to 5.0 wt .-%, preferably from 0.1 to 4.0 wt .-%, preferably from 0.6 to 2.0 wt .-%, in particular from 0.8 to 2.0 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion, contains.
• 12. Cosmetic product according to one of the preceding points, characterized in that the water-in-oil emulsion - at least one silicone polymer of the formula (Ia),
  
  wherein n is an integer from 1 to 400, preferably from 1 to 300, preferably from 1 to 200, in particular from 1 to 100, and m is an integer from 1 to 80, preferably from 1 to 60, in particular from 1 to 40, y, and z, independently of one another, represent mean numerical values of 18, provided that the order of the units in the curly brackets with the indices n, m, y and z is arbitrary, and - at least one Wax selected from hydrogenated castor oil.
• 13. Cosmetic product according to one of the preceding points, characterized in that the cosmetic product, the blowing agent in a total amount of 20 to 95 wt.%, Preferably 30 to 85 wt.%, In particular 40 to 80 wt .-%, based on the Total weight of the propellant-containing water-in-oil emulsion contains.
• 14. Use of a combination of a) at least one silicone polymer of the formula (I), and
  
  wherein R ₁ and R ₂ each independently represent hydrogen or a methyl group, R _{3 represents} an alkyl group of 1 to 4 carbon atoms, x represents integers of 1 to 5, y and z each independently represent average numbers from 10 to 30, n stands for integers from 1 to 500, and m stands for integers from 1 to 100, with the proviso that the order of the units in the curly brackets with the indices n, m, y and z is arbitrary, b) at least one wax, selected from hydrogenated castor oil, in water-in-oil emulsions to increase the release of cosmetic active ingredients, in particular antiperspirant active ingredients.
• 15. A non-therapeutic cosmetic method for preventing and / or reducing transpiration of the body, wherein a cosmetic product according to any one of items 1 to 13 in the form of an aerosol on the skin, in particular on the skin of the armpits, is applied and for at least 1 hour, preferably for at least 2 hours, preferably for at least 4 hours, in particular for at least 6 hours, remains on the skin of the armpits.

Examples:

The following W / O emulsions were prepared (all figures in% by weight). The silicone polymer of the formula (I) used is preferably a compound of the formula (Ia) where n = 1 to 100 and y, z = average numerical value of 18. Hydrogenated castor oil with an iodine value of 2 to 4 g of I ₂ per 100 g of hydrogenated castor oil or with an iodine value of 43 to 47 I ₂ per 100 g of hydrogenated castor oil is used as the hydrogenated castor oil. raw material 1 2 3 4 5 6 Cyclomethicone (D5) 12 12 12 12 12 12 Silicone polymer of the formula (I) 0.1 0.6 1.3 1.8 3.0 4.0 Hydrogenated castor oil 0.1 0.5 1.0 2.0 2.8 3.8 isopropyl 6.0 6.0 6.0 6.0 6.0 6.0 Aluminum chlorohydrate, 50% 25 25 25 25 25 25 1,2-polyethylene glycol 24 24 24 24 24 24 phenoxyethanol 0.5 0.5 0.5 0.5 0.5 0.5 Perfume 4.0 4.0 4.0 4.0 4.0 4.0 water ad 100 ad 100 ad 100 ad 100 ad 100 ad 100

The W / O emulsions 1 to 6 were filled in an aluminum can, which is internally coated with an epoxy phenolic lacquer, together with 40 to 80 wt .-% blowing agent.

All of the cosmetic products 1 'to 6' according to the invention had a stable W / O emulsion and led to a rapid release of the aluminum chlorohydrate and thus to an excellent antiperspirant effect.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 3887692A [0018]
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Cited non-patent literature

• Atinafu DG, et. al; Journal of Cereals and Oil seeds; 2011, 2, pages 71 to 76 [0036]
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Claims (10)

Cosmetic product, comprising - a water-in-oil emulsion containing a) at least one cosmetic active ingredient, b) at least one silicone polymer of the formula (I), and

wherein R ₁ and R ₂ each independently represent hydrogen or a methyl group, R _{3 represents} an alkyl group of 1 to 4 carbon atoms, x represents integers of 1 to 5, y and z each independently represent average numbers from 10 to 30, n stands for integers from 1 to 500, and m stands for integers from 1 to 100, with the proviso that the order of the units in the curly brackets with the indices n, m, y and z is arbitrary, and c) at least one wax selected from hydrogenated castor oil, at least one propellant, and an aerosol dispenser. Cosmetic product according to claim 1, characterized in that the at least one cosmetic active substance a) is selected from the group of antiperspirant active substances, in particular the antiperspirant aluminum salts. Cosmetic product according to one of Claims 1 or 2, characterized in that the water-in-oil emulsion comprises the at least one cosmetic active substance a) in a total amount of from 2 to 40% by weight, preferably from 3 to 38% by weight. , preferably from 4 to 35 wt .-%, more preferably from 5 to 32 wt .-%, even more preferably from 8 to 30 wt .-%, in particular from 12 to 25 wt .-%, based on the total weight of the blowing agent-free Water-in-oil emulsion. Cosmetic product according to one of the preceding claims, characterized in that the water-in-oil emulsion comprises at least one silicone polymer of the formula (Ia)

where n is an integer from 1 to 400, preferably from 1 to 300, preferably from 1 to 200, in particular from 1 to 100, and m represents integers from 1 to 80, preferably from 1 to 60, especially from 1 to 40, y, and z, each independently, represent mean numbers of 18, with the proviso that the order of the in the curly brackets standing units with the indices n, m, y and z is arbitrary contains. Cosmetic product according to one of the preceding claims, characterized in that the water-in-oil emulsion comprises the at least one silicone polymer b) of the formula (I) in a total amount of from 0.01 to 5.0% by weight, preferably from 0 From 1 to 4.0% by weight, preferably from 0.5 to 3.0% by weight, more preferably from 0.8 to 2.5% by weight, even more preferably from 1.1 to 2, 0 wt .-%, in particular from 1.3 to 1.8 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion contains. Cosmetic product according to one of the preceding claims, characterized in that the wax c) has an iodine value in g I ₂ per 100 g wax c) from 0.5 to 60, preferably from 1 to 55, preferably from 1.5 to 50, in particular from 2 to 45. Cosmetic product according to one of the preceding claims, characterized in that the water-in-oil emulsion comprises the at least one wax c) in a total amount of from 0.01 to 5.0% by weight, preferably from 0.1 to 4, 0 wt .-%, preferably from 0.6 to 2.0 wt .-%, in particular from 0.8 to 2.0 wt .-%, based on the total weight of the propellant-free water-in-oil emulsion contains. Cosmetic product according to one of the preceding claims, characterized in that the water-in-oil emulsion - at least one silicone polymer of the formula (Ia), and

wherein n is an integer from 1 to 400, preferably from 1 to 300, preferably from 1 to 200, in particular from 1 to 100, and m is an integer from 1 to 80, preferably from 1 to 60, in particular from 1 to 40, y, and z, independently of each other, represent mean numbers of 18, provided that the order of the units in the curly brackets with the indices n, my, and z is arbitrary, and - at least one wax, selected from hydrogenated castor oil. Use of a combination of a) at least one silicone polymer of the formula (I), and

wherein R ₁ and R ₂ each independently represent hydrogen or a methyl group, R _{3 represents} an alkyl group of 1 to 4 carbon atoms, x represents integers of 1 to 5, y and z each independently represent average numbers from 10 to 30, n stands for integers from 1 to 500, and m stands for integers from 1 to 100, with the proviso that the order of the units in the curly brackets with the indices n, m, y and z is arbitrary, b) at least one wax, selected from hydrogenated castor oil, in water-in-oil emulsions to increase the release of cosmetic active ingredients, in particular antiperspirant active ingredients.  A non-therapeutic cosmetic method for preventing and / or reducing the transpiration of the body, wherein a cosmetic product according to any one of claims 1 to 8 in the form of an aerosol on the skin, in particular on the skin of the armpits, is applied and for at least 1 hour , preferably for at least 2 hours, preferably for at least 4 hours, in particular for at least 6 hours, remains on the skin of the armpits.