DE19956185A1 - Transparent antiperspirant emulsion contains addition products of ethylene oxide and/or propylene oxide on linear 16-22C hydroxy-substituted fatty alcohols as emulsifier - Google Patents

Abstract

Transparent antiperspirant emulsion comprises 16-40 wt.% emulsifiers from addition products of 2-30 molar ethylene oxide and/or 0-5 molar propylene oxide on linear 16-22C hydroxy-substituted fatty alcohols, 5-45 wt.% oil components and 0-30 wt.% antiperspirant agents.

Description

Field of the Invention

The invention relates to transparent emulsions with defined amounts of linear and / or hydroxy Substituted fatty alcohol ethoxylates and oil components and optionally antiperspirant fabrics.

State of the art

For the production of cosmetic and / or pharmaceutical agents, in addition to oil bodies, in many cases len also nonionic emulsifiers, such as adducts of ethylene oxide with Ce tearyl alcohol or behenyl alcohol used. As from the German patent application DE 196 22 613 A1 shows that such emulsions are stable at room temperature, but are relatively low viscosities and in addition insufficient storage stability. Another disadvantage is in addition, the fact that antiperspirant preparations with such emulsifiers are generally not good have sensory properties and their application clear residues on the applied leave the skin on the skin.

Accordingly, the object of the present invention was to provide emulsions to provide that are transparent or clear and at the same time higher viscosities compared to the Pro Have products from the prior art. In addition, such emulsions should ver have better storage stability. The use of antiperspirant preparations with such Emulsions continue to show good sensory effects, such as less stickiness and reduced residues on the applied skin areas.  

Description of the invention

The invention relates to emulsions containing - based on the final concentration -

• a) 16 to 40 wt .-% emulsifiers selected from the group formed by addition products of 2 to 30 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide to linear and / or hy Droxy-substituted fatty alcohols with 16 to 22 carbon atoms,
• b) 5 to 45 wt .-% oil components and
• c) 0 to 30% by weight of antiperspirant active ingredients

with the proviso that the quantities indicated with water and possibly other auxiliary and Add additives to 100% by weight and the emulsions are transparent.

Surprisingly, it was found that a defined composition of linear and / or Hydroxy substituted fatty alcohol ethoxylates in combination with transparent and oil components deliver highly viscous emulsions with excellent storage stability. The usage of behenyl, hydroxystearyl and / or cetylstearyl ethoxylates leads to transparent systems particularly high viscosities. Antiperspirant preparations with such emulsions have good sensory properties and show a lower stickiness and clearly when used reduced residues on the applied skin areas.

Emulsifiers

The emulsifiers which form component (a) are nonionic surfactants, for example addition products of 2 to 30 mol of ethylene oxide and / or 0 to 5 mol of propylene oxide, with linear and / or hydroxy-substituted fatty alcohols containing 8 to 22, preferably 14 to 20 and preferably 16 to 18 carbon atoms in question. Typical examples of fatty alcohols are caprylic alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, linoleylyl alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol and their hydroxy-substituted derivatives. Emulsifiers of the formula (I) are preferably used

R ¹ O (CH ₂ CH ₂ O) _n H (I)

in which R ^{1 represents} a behenyl, a hydroxystearyl and / or a cetylstearyl radical and preferably a behenyl and / or a hydroxystearyl radical and n represents numbers from 2 to 30, preferably 10 to 25 and in particular 16 to 22.

Oil components

Examples of oil components which form component (b) are Guerbet alcohols based on fatty alcohols having 6 to 18, preferably 8 to 10 carbon atoms, esters of branched C ₆ -C ₁₃ carboxylic acids with linear C ₆ -C ₂₂ fatty alcohols, esters of linear C ₆ -C ₂₂ fatty acids with ver branched alcohols, especially 2-ethylhexanol, esters of hydroxycarboxylic acids with linear or branched C ₆ -C ₂₂ fatty alcohols, especially dioctyl malates, esters of linear and / or branched fatty acids with polyhydric alcohols (such as propylene glycol, dimer diol or trimer triol) and / or Guerbet alcohols, liquid mono- / di- / triglyceride mixtures based on C ₆ -C ₁₈ fatty acids, esters of C ₆ -C ₂₂ fatty alcohols and / or Guerbet alcohols aromatic carboxylic acids, in particular benzoic acid, esters of C ₂ -C ₁₂ dicarboxylic acids with linear or branched alcohols with 1 to 22 carbon atoms or polyols with 2 to 10 carbon atoms and 2 bi s 6 hydroxyl groups, branched primary alcohols, substituted cyclohexanes, linear and branched C ₆ -C ₂₂ fatty alcohol carbonates, Guerbet carbonates, esters of benzoic acid with linear and / or branched C ₆ -C ₂₂ alcohols (e.g. B. Finsolv® TN), linear or branched, symmetrical or asymmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, ring opening products of epoxidized fatty acid esters with polyols into consideration.

Silicone compounds, such as, for example, dimethylpolysiloxa, are also suitable as oil components ne, methylphenylpolysiloxanes, cyclic silicones as well as amino, fatty acid, alcohol, polyether, epoxy, fluorine, glycoside and / or alkyl modified silicone compounds that are both liquid at room temperature as well as resinous. Simethicones, which are Mi mixtures of dimethicones with an average chain length of 200 to 300 dimethylsiloxane Units and hydrogenated silicates. A detailed overview of suitable volatile silicones can also be found by Todd et al. in Cosm.Toil. 91, 27 (1976).

Antiperspirants

Antiperspirants (antiperspirants), which optionally as component (c) according to the invention ß agents can be reduced by influencing the activity of the eccrine Sweat glands build up perspiration, thus counteracting armpit wetness and body odor. As Antiperspirant active ingredients are particularly suitable for salts of aluminum, zirconium or zinc. Such suitable antiperspirant active ingredients are e.g. B. aluminum chloride, aluminum chlorhy drat, aluminum dichlorohydrate, aluminum sesquichlorohydrate and their complex compounds z. B. with  Propylene glycol 1,2, aluminum hydroxyallantoinate, aluminum chloride tartrate, aluminum zirconium Trichlorohydrate, aluminum-zirconium tetrachlorohydrate, aluminum-zirconium pentachlorohydrate and whose complex compounds z. B. with amino acids such as glycine.

Aluminum chlorohydates are colorless, hygroscopic crystals that easily melt in air and when evaporating aqueous aluminum chloride solutions. Aluminum chlorohydrate is used to manufacture antiperspirant and deodorant preparations and is likely to act by partially occluding the sweat glands through protein and / or polysaccharide precipitation [cf. J. Soc. Cosm.Chem. 24, 281 (1973)]. An aluminum chlorohydrate, for example, which corresponds to the formula [Al ₂ (OH) ₅ Cl] .2.5 H ₂ O and whose use is particularly preferred is commercially available under the brand Locron® from Hoechst AG, Frankfurt / FRG. J. Pharm. Pharmacol. 26, 531 (1975)]. In addition to the chlorohydrates, aluminum hydroxyl octates and acidic aluminum / zirconium salts, such as aluminum zirconium tetrachlorohydrex (Rezal® G36 P), can also be used. Esterase inhibitors can be added as further deodorant active ingredients. These are preferably trialkyl citrates such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, tributyl citrate and in particular triethyl citrate (Hydagen® CAT, Cognis, Düsseldorf / FRG). The substances inhibit enzyme activity and thereby reduce odor. The cleavage of the citric acid ester probably releases the free acid, which lowers the pH value on the skin to such an extent that the enzymes are inhibited. Other substances which can be considered as esterase inhibitors are sterol sulfates or phosphates, such as, for example, lanosterol, cholesterol, campesteric, stigmasterol and sitosterol sulfate or phosphate, dicarboxylic acids and their esters, such as, for example, glutaric acid, glutaric acid monoethyl ester, glutaric acid diethyl ester, adipic acid, Adipic acid monoethyl ester, adipic acid diethyl ester, malonic acid and malonic acid diethyl ester, hydroxycarboxylic acids and their esters such as citric acid, malic acid, tartaric acid or tartaric acid diethyl ester. Antibacterial agents that influence the bacterial flora and kill sweat-decomposing bacteria or inhibit their growth can also be contained in the stick preparations. Examples include chitosan, phenoxyethanol and chlorhexidine gluconate. 5-Chior-2- (2,4-dichlorophen-oxy) phenol, which is sold under the Irgasan® brand by Ciba-Geigy, Basel / CH, has also proven to be particularly effective. The emulsions according to the invention can contain the antiperspirants in amounts of 0 to 30, preferably 1 to 20 and in particular 10 to 15% by weight, based on the final concentration.

Thickener

The emulsions according to the invention can also contain thickeners, for example Aerosil types (hydrophilic silicas), polysaccharides, especially xanthan gum, guar guar, Agar-agar, alginates and tyloses, carboxymethyl cellulose and hydroxyethyl cellulose, moreover higher mo molecular polyethylene glycol monoesters and diesters of fatty acids, polyacrylates, (e.g. Carbopole® from  Goodrich or Synthalene® from Sigma), polyacrylamides, polyvinyl alcohol, polyurethanes and Polyvi nylpyrrolidone, surfactants such as ethoxylated fatty acid glycerides, esters of fatty acids with Polyols such as pentaerythritol or trimethylolpropane, with fatty alcohol ethoxylates narrow homolog distribution or alkyl oligoglucosides as well as electrolytes such as table salt and ammonium chloride. Consistency agents, polymers and / or waxes can also be used as thickeners be added.

The main consistency agents are fatty alcohols or hydroxy fatty alcohols with 12 to 22 and preferably 16 to 18 carbon atoms and in addition partial glycerides, fatty acids or hydroxy fat acids into consideration. A combination of these substances with alkyl oligoglucosides and / or is preferred Fatty acid N-methylglucamides of the same chain length and / or polyglycerol poly-12-hydroxystearates. Suitable cationic polymers are, for example, cationic cellulose derivatives, such as. B. a qua ternated hydroxyethyl cellulose, available under the name Polymer JR 400® from Amerchol is, cationic starch, copolymers of diallylammonium salts and acrylamides, quaternized vinyl pyrrolidone / vinylimidazole polymers, such as. B. Luviquat® (BASF), condensation products from Poly glycols and amines, quaternized collagen polypeptides such as lauryldimonium hydroxy propyl hydrolyzed collagen (Lamequat®L / Grünau), quaternized wheat polypeptides, polyethyleneimine, cationic silicone polymers, such as. B. amidomethicones, copolymers of adipic acid and dimethyla minohydroxypropyldiethylenetriamine (Cartaretine® / Sandoz), copolymers of acrylic acid with dimethyl dialfylammonium chloride (Merquat® 550 / Chemviron), polyaminopolyamides, e.g. B. described in the FR 2252840 A and its crosslinked water-soluble polymers, cationic chitin derivatives as in for example, quaternized chitosan, optionally microcrystalline, condensation products Dihaloalkylene, such as. B. dibromobutane with bisdialkylamines, such as. B. bis-dimethylamino-1,3-propane, cationic guar gum, such as B. Jaguar® CBS, Jaguar® C-17, Jaguar® C-16 from Celanese, quaternized ammonium salt polymers, such as. B. Mirapol® A-15, Mirapol® AD-1, Mirapol® AZ-1 der Miranol company.

Vinyla, for example, comes as anionic, zwitterionic, amphoteric and nonionic polymers acetate / crotonic acid copolymers, vinyl pyrrolidone / vinyl acrylate copolymers, vinyl acetate / butyl maleate / iso bornyl acrylate copolymers, methyl vinyl ether / maleic anhydride copolymers and their esters, un cross-linked and polyols cross-linked polyacrylic acids, acrylamidopropyltrimethylammonium chloride / Acrylate copolymers, octylacrylamide / methyl methacrylate / tert-butylaminoethyl methacrylate / 2-hydroxypropyl methacrylate copolymers, polyvinylpyrrolidone, vinylpyrrolidone / vinyl acetate copolymers, vinylpyrrolidone / Dimethylaminoethyl methacrylate / vinylcaprolactam terpolymers and, if appropriate, derivatized Cellulose ethers and silicones in question.

Typical examples of fats are glycerides. a. Beeswax, carnauba wax, Candelilla wax, montan wax, paraffin wax, hydrogenated castor oils, fat that is solid at room temperature acid esters or microwaxes, optionally in combination with hydrophilic waxes, e.g. B. Cetylstea ryl alcohol or partial glycerides in question.  

The thickeners can be present in amounts of 0 to 10, preferably 0.1 to 6% by weight, based on the Final concentration - to be added.

Industrial applicability

In a preferred embodiment of the invention, based on the final concentration, the emulsions contain:

• a) 20 to 30 wt .-% emulsifiers selected from the group formed by addition products of 2 to 30 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide to linear and / or hy Droxy-substituted fatty alcohols with 16 to 22 carbon atoms,
• b) 15 to 30 wt .-% oil components and
• c) 1 to 20% by weight of antiperspirant active ingredients

with the proviso that the quantities indicated with water and possibly other auxiliary and Add additives to 100% by weight and the emulsions are transparent or clear.

The viscosities of such systems are above 10,000, preferably 100,000, particularly preferably preferably 200,000 and in particular 500,000 mPas (according to Brookfield, 23 ° C, spindle TF, 4 rpm). The Use of mixtures of behenyl, hydroxystearyl and / or cetylstearyl ethoxylates can transparent systems with viscosities above 500,000, preferably 1,000,000 and in particular 2000000 mPas (according to Brookfield, 23 ° C, spindle TF, 4 rpm).

Another object of the invention therefore relates to the use of the accessories according to the invention Preparations for the production of transparent preparations with viscosities above 10,000, preferably 100,000, particularly preferably 200,000 and in particular 500,000 mPas (according to Brookfield, 23 ° C., Spindle TF, 4 rpm).

Other auxiliaries and additives

The emulsions according to the invention can furthermore be used as further auxiliaries and additives, other emulsifiers, superfatting agents, pearlescent waxes, consistency agents, stabilizers, biogenic Active ingredients, antidandruff agents, film formers, swelling agents, other UV light protection factors, antioxidants, Hydrotropes, preservatives, insect repellents, self-tanners, solubilizers, perfume oils, Contain dyes, germ-inhibiting agents and the like.

Typical examples of suitable mild, i.e. H. Surfactants that are particularly compatible with the skin are fatty alcohol poly glycol ether sulfates, monoglyceride sulfates, mono- and / or dialkyl sulfosuccinates, fatty acid isethionates,  Fatty acid sarcosinates, fatty acid taurides, fatty acid glutamates, α-olefin sulfonates, ether carboxylic acids, Alkyl oligoglucosides, fatty acid glucamides, alkyl amido betaines and / or protein fatty acid condensates, the latter preferably based on wheat proteins.

Other emulsifiers that can be used are, for example, nonionic surfactants from at least one of the following groups:

• 1. C _12/18 fatty acid _monoesters and diesters of adducts of 1 to 30 moles of ethylene oxide with glycerol;
• 2. Sorbitan mono- and diesters of saturated and unsaturated fatty acids with 6 to 22 carbons atoms of matter and their ethylene oxide addition products;
• 3. Alkyl mono- and oligoglycosides with 8 to 22 carbon atoms in the alkyl radical and their ethoxy analogs;
• 4. Polyglycerol esters, such as. B. polyglycerol polyricinoleate, polyglycerol poly-12-hydroxystearate or Polyglycerol dimer isostearate. Mixtures of compounds from several are also suitable ren of these substance classes;
• 5. Partial esters based on linear, branched, unsaturated or saturated C _6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, sugar alcohols (e.g. sorbitol), alkyl glucosides (e.g. methyl glucoside, butyl glucoside, lauryl glucoside ) and polyglucosides (e.g. cellulose);
• 6. mono-, di- and trialkyl phosphates and mono-, di- and / or tri-PEG-alkyl phosphates and their Salts;
• 7. wool wax alcohols;
• 8. Polyalkylene glycols as well
• 9. Glycerol carbonate.

The adducts of ethylene oxide and / or of propylene oxide with fatty acids, alkylphenols, Place glycerol monoesters and diesters as well as sorbitan monoesters and diesters of fatty acids or castor oil known, commercially available products. These are homolog mixtures whose average degree of alkoxylation the ratio of the amounts of ethylene oxide and / or propylene oxide and substrate with which the addition reaction is carried out. Civia fatty acid mono- and diesters of adducts of ethylene oxide with glycerol are known from DE 20 24 051 PS Refatting agents known for cosmetic preparations.

C _8/18 alkyl mono- and oligoglycosides, their preparation and their use are known from the prior art. They are produced in particular by reacting glucose or oligosaccharides with primary alcohols with 8 to 18 carbon atoms. With regard to the glycoside residue, both monoglycosides in which a cyclic sugar residue is glycosidically bonded to the fatty alcohol and oligomeric glycosides with a degree of oligomerization of up to preferably about 8 are suitable. The degree of oligomerization is a statistical mean value which is based on a homolog distribution customary for such technical products.

Zwitterionic surfactants can also be used as emulsifiers. Zwitterionic ten-side refers to those surface-active compounds which have at least one quaternary ammonium group and at least one carboxylate and one sulfonate group in the molecule. Particularly suitable zwitterionic surfactants are the so-called betaines such as the N-alkyl-N, N-dimethylam monium glycinate, for example the cocoalkyldimethylammonium glycinate, N-acylaminopropyl-N, N-dimethylammonium glycinate, for example the cocoacylaminopropyldimethylammonium glycinate, and 2-alkyl-3-carboxyl -hydroxyethylimidazolines each having 8 to 18 carbon atoms in the alkyl or acyl group and the cocoacylaminoethylhydroxyethylcarboxymethylglycinate. The fatty acid amide derivative known under the CTFA name of Cocamidopropyl Betaine is particularly preferred. Suitable emulsifiers are also ampholytic surfactants. Ampholytic surfactants are surface-active compounds which, in addition to a C _8/18 alkyl or acyl group, contain at least one free amino group and at least one -COOH or -SO ₃ H group in the molecule and are capable of forming internal salts are. Examples of suitable ampholytic surfactants are N-alkylglycine, N-alkylpropionic acid, N-alkylaminobutyric acid, N-alkyliminodipropionic acid, N-hydroxyethyl-N-alkylamidopropylglycine, N-alkyltaurine, N-alkyl sarcosine, 2-alkylaminopropionic acid and alkylaminoacetic acid each with about 8 to 18 C. Atoms in the alkyl group. Particularly preferred ampholytic surfactants are N-cocoalkylaminopropionate, cocoacylaminoethylamino propionate and C _12/18 acyl sarcosine. In addition to the ampholytic, cationic surfactants are also suitable as emulsifiers, those of the esterquat type, preferably methylquaternized di fatty acid triethanolamine ester salts, being particularly preferred.

Substances such as lanolin and lecithin and polyethoxy can be used as superfatting agents lated or acylated lanolin and lecithin derivatives, polyol fatty acid esters, monoglycerides and fatty acid al kanolamides are used, the latter also serving as foam stabilizers.

Pearlescent waxes, for example, are: alkylene glycol esters, especially ethylene glycol di stearate; Fatty acid alkanolamides, especially coconut fatty acid diethanolamide; Partial glycerides, especially stea rinic acid monoglyceride; Esters of polyvalent, optionally hydroxy-substituted carboxylic acids Fatty alcohols with 6 to 22 carbon atoms, especially long-chain esters of tartaric acid; Fatty substances like for example fatty alcohols, fatty ketones, fatty aldehydes, fatty ethers and fatty carbonates, which in total min have at least 24 carbon atoms, especially lauron and distearyl ether; Fatty acids such as stearin acid, hydroxystearic acid or behenic acid, ring opening products of olefin epoxides with 12 to 22 Carbon atoms with fatty alcohols with 12 to 22 carbon atoms and / or polyols with 2 to 15  Carbon atoms and 2 to 10 hydroxyl groups and mixtures thereof. Here are conceivable also pearlescent waxes with optical effects caused by pigments.

Metal salts of fatty acids, such as. B. magnesium, aluminum and / or Zinc stearate or ricinoleate can be used.

Examples of biogenic active ingredients are tocopherol, tocopherol acetate, tocopherol palmitate, Ascorbic acid, deoxyribonucleic acid, retinol, bisabolol, allantoin, phytantriol, panthenol, AHA acid ren, amino acids, ceramides, pseudoceramides, essential oils, plant extracts and vitamin complexes to understand.

Climbazole, octopirox and zinc pyrethione can be used as antidandruff agents. Ge Common film formers are, for example, chitosan, microcrystalline chitosan, quaternized chito san, polyvinylpyrrolidone, vinylpyrrolidone-vinyl acetate copolymers, polymers of the acrylic acid series, quaternary cellulose derivatives, feces, hyaluronic acid or its salts and similar compounds. Montmorillonite, clay minerals, pemulene and alkyl can be used as swelling agents for aqueous phases modified carbopol types (Goodrich) are used. Other suitable polymers or swelling agents can the overview by R. Lochhead in Cosm. Toil. 108, 95 (1993).

Under UV light protection factors are to be understood, for example, liquid or crystalline organic substances (light protection filters) at room temperature, which are able to absorb ultraviolet rays and absorb the energy in the form of longer-wave radiation, e.g. B. to give off heat like that. UVB filters can be oil-soluble or water-soluble. As oil-soluble substances such. B. To name:

• - 4-aminobenzoic acid derivatives, preferably 4- (dimethylamino) benzoic acid 2-ethylhexyl ester, 4- 2-octyl (dimethylamino) benzoate and amyl 4- (dimethylamino) benzoate;
• - Esters of salicylic acid, preferably salicylic acid 2-ethylhexyl ester, salicylic acid 4-isopropylbene methyl ester, salicylic acid homomethyl ester;
• - Derivatives of benzophenone, preferably 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-me thoxy-4'-methylbenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone;
• - Esters of benzalmalonic acid, preferably di-2-ethylhexyl 4-methoxybenzmalonate;
• - Triazine derivatives, such as. B. 2,4,6-Trianilino- (p-carbo-2'-ethyl-1'-hexyloxy) -1,3,5-triazine and octyl tria zon, as described in EP 0818450 A1;
• Propane-1,3-diones, such as e.g. B. 1- (4-tert-butylphenyl) -3- (4'methoxyphenyl) propane-1,3-dione;
• - Ketotricyclo (5.2.1.0) decane derivatives, as described in EP 0694521 B1.

Possible water-soluble substances are:

• - 2-phenylbenzimidazole-5-sulfonic acid and its alkali, alkaline earth, ammonium, alkylammonium, Alkanolammonium and glucammonium salts;
• - Sulfonic acid derivatives of benzophenones, preferably 2-hydroxy-4-methoxybenzophenone-5- sulfonic acid and its salts;
• - Sulfonic acid derivatives of 3-benzylidene camphor, such as. B. 4- (2-Oxo-3-bornylidenemethyl) benzene sulfonic acid and 2-methyl-5- (2-oxo-3-bornylidene) sulfonic acid and its salts.

In addition to the two aforementioned groups of primary light stabilizers, secondary light stabilizers of the antioxidant type can also be used, which interrupt the photochemical reaction chain which is triggered when UV radiation penetrates the skin. Typical examples are amino acids (e.g. glycine, histidine, tyrosine, tryptophan) and their derivatives, imidazoles (e.g. urocanic acid) and their derivatives, peptides such as D, L-carnosine, D-carnosine, L-carnosine and their derivatives (e.g. anserine), carotenoids, carotenes (e.g. α-carotene, β-carotene, lycopene) and their derivatives, chlorogenic acid and its derivatives, lipoic acid and its derivatives (e.g. dihydroliponic acid), Auro thioglucose, propylthiouracil and other thiols (e.g. thioredoxin, glutathione, cysteine, cystine, cystamine and their glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl) , Oleyl, γ-linoleyl, cholesteryl and glyceryl esters) and their salts, dilauryl thiodipropionate, distearyl thiodipropionate, thiodipropionic acid and their derivatives (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) and sulfoximine compounds (e.g. Buthioninsulfoximine, Homocysteinsulfoximin, Bu tioninsulfone, Penta-, Hexa-, Heptathioninsulfoxi min) in very low tolerable doses (e.g. B. pmol to µmol / kg), also (metal) chelators (e.g. α-hydroxy fatty acids, palmitic acid, phytic acid, lactoferrin), α-hydroxy acids (e.g. citric acid, lactic acid, malic acid), humic acid, bile acid, Bile extracts, bilirubin, biliverdin, EDTA, EGTA and their derivatives, unsaturated fatty acids and their derivatives (e.g. γ-linolenic acid, linoleic acid, oleic acid), folic acid and their derivatives, ubiquinone and ubiquinol and their derivatives, vitamin C and derivatives ( e.g. ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate), tocopherols and derivatives (e.g. vitamin E acetate), vitamin A and derivatives (vitamin A palmitate) and coniferyl benzoate of benzoin, rutinic acid and its derivatives, α -Glycosylrutin, Ferulasäure, Furfurylidenglucitol, Carnosin, Butylhydroxytoluol, Butylhydroxyanisol, Nordihydroguajak resin acid, Nordihydroguajaretsäure, Trihydroxybutyrophenon, uric acid and its derivatives, Man nose and their derivatives, Superoxid-Dismutase, zinc and its derivative te (e.g. ZnO, ZnSO ₄ ) selenium and its derivatives (e.g. B. selenium-methionine), stilbenes and their derivatives (z. B. stilbene oxide, trans-style benoxid) and the inventive derivatives (salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids) of these active ingredients.

To improve the flow behavior, hydrotropes such as ethanol, isopropyl alcohol or polyols can also be used. Polyols that come into consideration here preferably have 2 to 15 carbon atoms and at least two hydroxyl groups. The polyols can also contain further functional groups, in particular amino groups, or be modified with nitrogen. Typical examples are

• - glycerin;
• Alkylene glycols, such as, for example, ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, Hexylene glycol and polyethylene glycols with an average molecular weight of 100 to 1,000 daltons;
• - Technical oligoglycerol mixtures with a degree of self-condensation of 1.5 to 10 such as tech niche diglycerin mixtures with a diglycerol content of 40 to 50% by weight;
• Methyl compounds, such as in particular trimethylolethane, trimethylolpropane, trimethylolbutane, Pentaerythritol and dipentaerythritol;
• - Lower alkyl glucosides, especially those with 1 to 8 carbons in the alkyl radical, such as wise methyl and butyl glucoside;
• Sugar alcohols with 5 to 12 carbon atoms, such as sorbitol or mannitol,
• - Sugar with 5 to 12 carbon atoms, such as glucose or sucrose;
• - aminosugars such as glucamine;
• - Dialcohol amines, such as diethanolamine or 2-amino-1,3-propanediol.

Suitable preservatives are, for example, phenoxyethanol, formaldehyde solution, para benzene, pentanediol or sorbic acid as well as those in Appendix 6, Parts A and B of the Cosmetics Regulation led further substance classes. As insect repellents there are N, N-diethyl-m-toluamide, 1,2- Pentanediol or insect repellent 3535 in question, dihydroxyacetone is suitable as a self-tanner.

Perfume oils include mixtures of natural and synthetic fragrances. Natural Fragrance substances are extracts of flowers (lily, lavender, rose, jasmine, neroli, ylang-ylang), stems and leaves (geranium, patchouli, petitgrain), fruits (anise, coriander, caraway, juniper), fruit peel (bergamot, lemon, oranges), roots (mace, angelica, celery, cardamom, costus, iris, Calmus), woods (pine, sandal, guaiac, cedar, rosewood), herbs and grasses (tarragon, Lemongrass, sage, thyme), needles and twigs (spruce, fir, pine, mountain pine), resins and bal seeds (galbanum, elemi, benzoin, myrrh, olibanum, opoponax). Furthermore animal raw come substances in question, such as civet and castoreum. Typical synthetic fragrance compounds gen are products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type. Fragrance compounds of the ester type are e.g. B. benzyl acetate, phenoxyethyl isobutyrate, p-tert-Bu tylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinylacetate, phenylethyl acetate, linalyl benzoate, Benzyl formate, ethyl methylphenyiglycinate, allylcyclohexylpropionate, styrallylpropionate and benzylsa licylate. The ethers include, for example, benzyl ethyl ether, the aldehydes z. B. the linear Alka nals with 8 to 18 carbon atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamenaldehyde, Hydroxycitronellal, Lilial and Bourgeonal, to the ketones z. B. the Jonone, α-isomethylionon and Me  thylcedryl ketone, to the alcohols anethole, citronellol, eugenol, isoeugenol, geraniol, linalool, pheny ethyl alcohol and terpineol, the hydrocarbons mainly include terpenes and bal same. However, preference is given to using mixtures of different fragrances that work together generate an appealing fragrance. Also essential oils of lower volatility, mostly as an aro Mac components are used as perfume oils, e.g. B. sage oil, chamomile oil, clove oil, Lemon balm oil, mint oil, cinnamon leaf oil, linden blossom oil, juniper berry oil, vetiver oil, oliban oil, galbanum oil, Labolanumöl and Lavandinöl. Bergamot oil, dihydromyrcenol, lilial, lyral, Citronellol, phenylethyl alcohol, α-hexyl cinnamaldehyde, geraniol, benzylacetone, cyclamenaldehyde, Lina lool, boisambrene forte, ambroxan, indole, hedione, sandelice, lemon oil, mandarin oil, orange oil, Allylamyl glycolate, cyclover valley, lavandin oil, muscatel sage oil, β-damascone, geranium oil bourbon, Cyclohexyl salicylate, Vertofix Coeur, Iso-E-Super, Fixolide NP, Evernyl, Iraldein gamma, phenylacetic acid acid, geranyl acetate, benzyl acetate, rose oxide, romilllate, irotyl and floramate alone or in mixtures gene, used.

As dyes, the substances suitable and approved for cosmetic purposes can be used be used, such as the dye in the publication "Cosmetic Colorants" Commission of the German Research Foundation, Verlag Chemie, Weinheim, 1984, pp. 81-106 are compiled or pigments, gold flakes and the like are used. These dyes are usually in concentrations of 0.001 to 0.1 wt .-%, based on the total Mi research, used.

Typical examples of germ-inhibiting agents are preservatives with a specific effect against gram-positive bacteria such as 2,4,4'-trichloro-2'-hydroxydiphenyl ether, chlorhexidine (1,6-di- (4- chlorphenyl-biguanido) hexane) or TCC (3,4,4'-trichlorocarbonilide). Also numerous fragrances and essential oils have antimicrobial properties. Typical examples are the active ingredients Euge nol, menthol and thymol in clove, mint and thyme oil. An interesting natural deodorant is the terpene alcohol farnesol (3,7,11-trimethyl-2,6,10-dodecatrien-1-ol), which is present in the linden blossom oil is and has a lily of the valley smell. Glycerol monolaurate has also proven to be a bacteriostatic lasts. The proportion of the additional germ-inhibiting agents is usually about 0.1 to 2% by weight. - Based on the solids content of the preparations.

The total proportion of auxiliaries and additives can be 1 to 50, preferably 5 to 40% by weight on the middle - amount.  

Examples

Different O / W emulsions with (Examples 1 to 3) or without (Examples 4 and 5) anti transpirants made. The emulsion V1 with smaller amounts of fatty alcohol ethoxylates is used for Comparison. The viscosities of the preparations were determined using the Brookfield method (mPas, 23 ° C., Spindle TF, 4 rpm) measured. The antiperspirant emulsions 1, 4 and 5 according to the invention show compared to the prior art (V1) with increased viscosity significantly lower stickiness and reduced residues when applied to the skin.

Table 1

Emulsions (quantities in% by weight)

Claims (11)

1. Emulsions containing - based on the final concentration -

• a) 16 to 40% by weight of emulsifiers selected from the group formed by addition products of 2 to 30 mol of ethylene oxide and / or 0 to 5 mol of propylene oxide to linear and / or hydroxy-substituted fatty alcohols having 16 to 22 carbon atoms,
• b) 5 to 45 wt .-% oil components and
• c) 0 to 30% by weight of antiperspirant active ingredients

with the proviso that the amounts given with water and possibly other auxiliaries and additives are 100% by weight and the emulsions are transparent. 2. Emulsions according to claim 1, characterized in that they contain as component (b) oil components, which are selected from the group formed by Guerbet alcohols based on fatty alcohols having 6 to 18 carbon atoms, esters of branched C ₆ -C _13- carboxylic acids with linear C ₆ -C ₂₂ fatty alcohols, esters of linear C ₆ -C ₂₂ fatty acids with branched alcohols, esters of hydroxycarboxylic acids with linear or branched C ₆ -C ₂₂ fatty alcohols, esters of linear and / or branched Fatty acids with polyhydric alcohols and / or Guerbet alcohols, liquid mono- / di- / triglyceride mixtures based on C ₆ -C ₁₈ fatty acids, esters of C ₆ -C ₂₂ fatty alcohols and / or Guerbet alcohols with aromatic carboxylic acids, esters of C ₂ -C ₁₂ -dicarboxylic acids with linear or branched alcohols with 1 to 22 carbon atoms or polyols with 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, branched primary alcohols, substitute erten cyclohexanes, linear and branched C ₆ -C ₂₂ fatty alcohol carbonates, Guerbet carbonates, esters of benzoic acid with linear and / or branched C ₆ -C ₂₂ alcohols, linear or branched, symmetrical or asymmetrical dialkyl ethers with 6 to 22 carbon atoms per alkyl group and Ring opening products of epoxidized fatty acid esters with polyols. 3. Emulsions according to claims 1 and / or 2, characterized in that they contain as component (a) emulsifiers of the formula (I),
R ¹ O (CH ₂ CH ₂ O) _n H (I)
in which R ^{1 represents} a behenyl, a hydroxystearyl and / or a cetylstearyl radical and n represents numbers from 2 to 30. 4. Emulsions according to at least one of claims 1 to 3, characterized in that they contain as component (a) emulsifiers of the formula (I) in which R ^{1 is} a behenyl radical. 5. Emulsions according to at least one of claims 1 to 4, characterized in that they contain as component (a) emulsifiers of the formula (I) in which R ^{1 is} a hydroxystearyl radical. 6. Emulsions according to at least one of claims 1 to 5, characterized in that they are as Component (c) salts of aluminum, zirconium or zinc and their complex compound included. 7. Emulsions according to at least one of claims 1 to 6, characterized in that they continue to contain thickeners. 8. Emulsions according to at least one of claims 1 to 7, characterized in that they a viscosity above 100000 mPas measured according to Brookfield (23 ° C, spindle TF, 4 rpm) exhibit. 9. Emulsions containing - based on the final concentration -

• a) 20 to 30% by weight of emulsifiers selected from the group formed by addition products of 2 to 30 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide to linear and / or hydroxy-substituted fatty alcohols having 16 to 22 carbon atoms,
• b) 15 to 30 wt .-% oil components and optionally
• c) 1 to 20% by weight of antiperspirant active ingredients

with the proviso that the quantities indicated with water and possibly other auxiliary and additive 100% by weight of substances and the emulsions are transparent. 10. Use of preparations according to claim 1 for the production of transparent preparations Viscosities above 10,000 mPas (according to Brookfield, 23 ° C, spindle TF, 4 rpm).