DE102012214667A1 - Particles useful for antiperspirant composition for roll-on-application, comprise partially crystalline polymer having alkyl side chains, and cosmetic active substance comprising perfume and/or cooling active substance - Google Patents

Abstract

Particles comprise 30-90 wt.% at least one partially crystalline polymer having 8-30C alkyl side chains, and 10-70 wt.% at least one cosmetic active substance comprising perfume and/or cooling active substance. An independent claim is also included for an antiperspirant composition for roll-on-application, comprising (a) water, (b) at least one deodorant- or antiperspirant active substance, (c) at least one polymer containing polysaccharides, their esters and/or ethers, and (d) 0.01-10 wt.% above particles.

Description

The present application relates to aqueous antiperspirant compositions, also referred to as antiperspirant compositions, which are suitable for application with a roll applicator and have an improved long-term effect, in particular long-term odor effect. In addition, the application relates to particles which can release certain active ingredients delayed. There are numerous ways to apply antiperspirant compositions to the skin. Dimensionally stable pen masses are spread over the skin from a pen dispenser until an effective amount is applied. Gels and creams can also be applied with pen-like dispensers that are painted over the skin with a dispenser surface. In particular, for antiperspirant and / or deodorant compositions for the forearm area numerous different forms of application have been developed, in addition to the already mentioned above all the propellant-containing and propellant-free sprays and the roll-on compositions. In the latter, a slightly thickened liquid is applied from a reservoir via a rotatably mounted ball by rolling over the skin. Antiperspirant roll-on compositions may be anhydrous and oil-based; For example, the oil-based Sud conventional antiperspirant sprays is also suitable for administration as Rollon. Here, the antiperspirant active is present as a suspended powder in an oil thickened to prevent settling of the powder particles with a lipophilic gelling agent. However, such Rollons are hardly represented in the market. Conventional antiperspirant roll-on compositions are water-based, that is they contain about 50% by weight and more of their total weight of water. The antiperspirant active, usually an antiperspirant aluminum or aluminum-zirconium compound, is in dissolved form. A thickening is required here to allow the applicability of the composition with a roll applicator.

The use of certain thickening agents may cause the fragrance impression of the agents to be perceived as inhomogeneous. Often, the scent impression immediately after the application is very strong and is sometimes perceived as intrusive, while a few hours after the application is often perceived as a weak fragrance impression.

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

An object of the present application was therefore to provide water-based antiperspirant rollons with improved long-term stability, in particular improved long-term odor effect. Another object of the present application was to provide antiperspirant rollons in the form of hydrous emulsions having improved temperature stability.

Surprisingly, it has been found that the use of semicrystalline polymers certain active ingredients, especially fragrances so formulated that a significant improvement in the temperature and fragrance stability and a significantly improved long-term scent effect can be achieved.

The present application is in a first embodiment, a particle containing, based in each case on the particle weight, 30-90 wt .-% of at least one partially crystalline polymer having C ₈ -C ₃₀ alkyl side chains and 10-70 wt .-% of a or several cosmetic active ingredients selected from fragrances, cooling agents and perfume-cooling agent mixtures.

The particles of the invention contain - based on their weight - 30 to 90 wt .-% of at least one partially crystalline polymer having C ₈ -C ₃₀ alkyl side chains. Preferred particles according to the invention contain from 35 to 85% by weight, more preferred particles from 40 to 80% by weight, even more preferred particles from 45 to 77.5% by weight and especially preferred particles from 50 to 75% by weight of at least one semicrystalline one Polymers with C ₈ -C ₃₀ -alkyl side chains.

A solid which contains both crystalline and amorphous regions (domains) is called semicrystalline. Cooling the melt of a polymer, the chains move less and less and begin to regularly order (crystallize). However, since the chains are entangled in one another, this process can not take place in the whole sample but only in domains. In the remainder of the sample, the chains solidify disorderly (amorphous).

In addition to a backbone (see below), the polymers according to the invention have side chains which, according to the invention, are formed from C ₈ -C ₃₀ -alkyl groups. Particularly preferred are polymers having the following side chains: octyl (- C ₈ H ₁₇ ), nonyl - (- C ₉ H ₁₉ ), decyl - (- C ₁₀ H ₂₁ ), undecyl - (- C ₁₁ H ₂₃ ) dodecyl ( -C ₁₂ H ₂₅ ), tridecyl - (- C ₁₃ H ₂₇ ), tetradecyl - (- C ₁₄ H ₂₉ ), pentadecyl (- C ₁₅ H ₃₁ ), hexadecyl (- C ₁₆ H ₃₃ ), heptadecyl ( -C ₁₇ H ₃₅ ), octadecyl - (- C ₁₈ H ₂₇ ), nonadecyl - (- C ₁₉ H ₃₉ ), eicosyl - (- C ₂₀ H ₄₁ ), heneicosyl - (- C ₂₁ H ₄₃ ), doeicosyl ( -C ₂₂ H ₄₅ ), tricosyl - (- C ₂₃ H ₄₇ ), tetracosyl - (- C ₂₄ H ₄₉ ), pentacosyl - (- C ₂₅ H ₅₁ ), hexacosyl - (- C ₂₆ H ₅₃ ), heptacosyl - (- C ₂₇ H ₅₅ ), octacosyl - (- C ₂₈ H ₅₇ ), nonacosyl - (- C ₂₉ H ₅₉ ) and tricontyl (- C ₃₀ H ₆₁ ).

in der R1 für -H (Acrylsäureester) oder -CH₃ (Methacrylsäureester) steht, R2 einen linearen oder verzweigten C₈–C₃₀-Alkylrest bedeutet und n für ganze Zahlen zwischen 1 und 200 steht. The side chains can be linear or threaded. They may be directly attached to the backbone via C-C bonds, but it is also possible and preferred that they be linked to the backbone via heteroatoms. Particularly preferably, the side chains are bonded via an oxygen atom, wherein ester groups which are formed from carboxylic acid groups on the main chain and the corresponding C ₈ -C ₃₀ alkanols are particularly preferred. Very particularly preferred semicrystalline polymers having C ₈ -C ₃₀ -alkyl side chains are polyacrylic and polymethacrylic acid esters of C ₈ -C ₃₀ -alkanols. Such polymers have structural units of the formula (I)

in which R 1 is -H (acrylic acid ester) or -CH ₃ (methacrylic acid ester), R 2 is a linear or branched C ₈ -C ₃₀ -alkyl radical and n is an integer between 1 and 200.

in der R1 für -H (Acrylsäureester) oder -CH₃ (Methacrylsäureester) steht, k für eine ganze Zahl von 7 bis 29 und n für ganze Zahlen zwischen 1 und 200 steht. Among the compounds of the formula (I), preferred are those which have a linear C ₈ -C ₃₀ -alkyl radical and can be described by the formula (Ia)

in which R _{1 is} -H (acrylic acid ester) or -CH ₃ (methacrylic acid ester), k is an integer from 7 to 29 and n is an integer between 1 and 200.

Very particular preference is given to polyacrylic acid esters (R1 = -H). In summary, preference is given to particles according to the invention in which the semicrystalline polymer having C ₈ -C ₃₀ -alkyl side chains is selected from acrylic esters of C ₈ -C ₃₀ -alkanols which may be linear or branched.

The C ₈ -C ₃₀ -alkyl radicals are particularly preferably linear, so that in particular preferred particles according to the invention at least one compound from the group polyacrylic acid-n-octyl ester, polyacrylic acid-n-nonyl ester, polyacrylic acid-n-decyl ester, polyacrylic acid-n-undecyl ester, polyacrylic acid n-dodecyl ester, polyacrylic acid n-tridecyl ester, polyacrylic acid n-tetradecyl ester, polyacrylic acid n-pentadecyl ester, polyacrylic acid n-hexadecyl ester,
Polyacrylic acid n-heptadecyl ester, n-octadecyl acrylate, n-nonadecyl acrylate, n-eicosyl acrylate, n-heneicosyl polyacrylate, n-doxycosyl acrylate, n-tricosyl polyacrylate, polyacrylic n-tetracosyl ester, polyacrylic acid n-Pentacosylester, polyacrylic acid-n-hexacosyl ester, polyacrylic acid-n-heptacosyl ester, polyacrylic acid-n-octacosyl ester, polyacrylic acid-n-Nonacosylester, polyacrylic acid-n-Tricontylester included.

The degree of esterification of the polyacrylic or Polymethyacrylsäureester can be varied in order to impart different properties to the polymers and thus the particles of the invention. In preferred particles, it is between 10 and 90% (i.e., one to 9 carboxylic acid groups of each 10 groups are esterified), preferably between 20 and 85%, more preferably between 30 and 80%, and most preferably between 35 and 75%.

Of course, the abovementioned main chain need not be a homopolymer; copolymers, for example those of acrylic and methacrylic acid, can also be used according to the invention if they have side chains which are formed from C ₈ -C ₃₀ -alkyl groups. By selecting the polymer backbone, the proportion and the length of the C ₈ -C ₃₀ -alkyl radicals, it is possible to vary the property profile of the polymers and thus of the particles according to the invention. Particles according to the invention are preferred in which the at least one semicrystalline polymer having C ₈ -C ₃₀ -alkyl side chains is selected from partially crystalline polymers having C ₈ -C ₃₀ -alkyl side chains which have a melting point in the range of 30-75 ° C. , preferably 35-60 ° C, more preferably 40-55 ° C, most preferably 40-48 ° C, measured according to ASTM D 36 ,

The particles of the invention contain - based on their weight - 10-70 wt .-% of one or more cosmetic active ingredients selected from fragrances, cooling agents and perfume-cooling agent mixtures.

Examples of ester-type fragrance and fragrance compounds are benzyl acetate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinylacetate (DMBCA), phenylethylacetate, benzylacetate, ethylmethylphenylglycinate, allylcyclohexylpropionate, styrallylpropionate, benzylsalicylate, cyclohexylsalicylate, floramate, melusate and jasmecyclate. Examples of fragrance and fragrance compounds of the ether type are benzyl ethyl ether and ambroxane. Examples of fragrance and fragrance compounds of the aldehyde type are the linear alkanals having 8-18 C atoms, citral, Citronellal, citronellyloxy-acetaldehyde, cyclamen aldehyde, lilial and bourgeonal Examples of ketone type fragrance and fragrance compounds are the ionone, alpha-isomethylionone and methyl cedryl ketone. Examples of the alcohol type fragrance and fragrance compounds are anethole, citronellol, eugenol, geraniol , Linalool, phenylethyl alcohol and terpineol, examples of terpene type fragrance and fragrance compounds are limonene and pinene. Examples of fragrance and fragrance compounds are pine, citrus, jasmine, patchouly, rose, ylang-ylang, muscat sage, chamomile, clove, mint, cinnamon, lime, juniper, vetiver, olibanum, galbanum, Labdanum oil, orange blossom oil, neroli oil, orange peel oil and sandalwood oil, further the essential oils such as angelica root oil, aniseed oil, arnica blossom oil, basil oil, bay oil, bergamot oil, champacilla oil, fir pine oil, pinecone oil, elemi oil, eucalyptus oil, fennel oil, pine needle oil, geranium oil, ginger grass oil, guaiac wood oil, gurdy balm oil, helichrysum oil , Ho oil, ginger oil, iris oil, cajeput oil, calamus oil, chamomile oil, camphor oil, kanga oil, cardamom oil, cassia oil, pine needle oil, copaiba balsam, coriander oil, spearmint oil, caraway oil, cumin oil, lavender oil, lemongrass oil, lime oil, tangerine oil, lemon balm oil, musk kernel oil, myrrh oil, clove oil , Niaouliöl, Orange oil, Origanumöl, Palmaro saöl, patchouli oil, balsamic balsam, petitgrain oil, pepper oil, peppermint oil, pimento oil, pine oil, rose oil, rosemary oil, sandalwood oil, celery oil, spik oil, star aniseed oil, turpentine oil, thuja oil, thyme oil, verbena oil, juniper berry oil, wormwood oil, wintergreen oil, hyssop oil, cinnamon oil, Citron oil, lemon oil and cypress oil. Further fragrance and fragrance compounds are ambrettolide, α-amylcinnamaldehyde, anethole, anisaldehyde, anisalcohol, anisole, methyl anthranilate, acetophenone, benzylacetone, benzaldehyde, ethyl benzoate, benzophenone, benzyl alcohol, benzyl acetate, benzyl benzoate, benzyl formate, benzyl valerate, borneol, bornyl acetate, α-bromostyrene, n-decyl aldehyde, n-dodecyl aldehyde, eugenol, eugenol methyl ether, eucalyptol, farnesol, fenchone, fenchyl acetate, geranyl acetate, geranyl formate, heliotropin, hepticarboxylic acid methyl ester, heptaldehyde, hydroquinone dimethyl ether, hydroxycinnamaldehyde, hydroxycinnamyl alcohol, indole, iron, isoeugenol, isoeugenol methyl ether, isosafrole, jasmon. Camphor, Karvakrol, Karvon, p-cresol methyl ether, coumarin, p-methoxyacetophenone, methyl n-amyl ketone, methyl anthranilate, p-methylacetophenone, methylchavikole, p-methylquinoline, methyl-β-naphthyl ketone, methyl-n-nonylacetaldehyde, methyl-n- nonyl ketone, Muskon, β-naphthol ethyl ether, β-naphthol methyl ether, nerol, Nit robenzene, n-nonylaldehyde, nonyl alcohol, n-octylaldehyde, p-oxyacetophenone, pentadecanolide, β-phenylethyl alcohol, phenylacetaldehyde dimethyacetal, phenylacetic acid, pulegone, safrole, isoamyl salicylate, methyl salicylate, hexyl salicylate, cyclohexyl salicylate, santalol, skatole, terpineol, thymene, Thymol, γ-undecalactone, vanillin, veratrum aldehyde, cinnamaldehyde, cimat alcohol, cinnamic acid, cinnamic acid ethyl ester and cinnamic acid benzyl ester.

Further (more volatile) fragrances are alkyl isothiocyanates (alkyl mustard oils), butanedione, limonene, linalool, linayl acetate and propionate, methyl-n-heptenone, phellandrene, phenylacetaldehyde, terpinyl acetate, citral and citronellal.

Preference is given to using mixtures of different fragrances which together produce an attractive fragrance.

Suitable perfume oils may also contain natural fragrance mixtures such as are available from plant or animal sources, e.g. Pine, citrus, jasmine, rose, lily or ylang-ylang oil. Also, lower volatility volatile oils, which are most commonly used as aroma components, are useful as perfume oils, e.g. Sage oil, chamomile oil, lemon balm oil, mint oil, cinnamon leaf oil, lime blossom oil, juniper berry oil, vetiver oil, oliban oil, galbanum oil, laudanum oil, clove oil, iso-eugenol, thyme oil, bergamot oil, geranium oil and rose oil.

According to the invention, such cooling compounds are considered to be compounds which, like L-menthol, stimulate the thermoreceptors in the skin and the mucous membranes in such a way that a cool sensory impression is created. In particular, the receptor CMR-1 ("cold and menthol-sensitive receptor"), which belongs to the family of TRP channels (Transient Receptor Potential Ion Channels), is stimulated by the cooling agent, so that a feeling of cold is perceived. CMR-1 is expressed in certain peripheral neurons. The cooling agent binds to the receptor CMR-1, which is also referred to as TRPM-8 (Transient Receptor Potential Melastatin 8). As a result of this binding, as well as due to low temperatures, the ion channel is opened so that calcium and sodium ions pass through, which results in a cold sensation at the end of the signal chain. Cooling agents which are preferred according to the invention are selected from menthol, preferably (-) - menthol, furthermore from isopulegol, in particular (-) - isopulegol (FEMA 2962), N-2,3-trimethyl-2-isopropylbutamide, menthyl lactate, menthylpyrrolidonecarboxylic acid, menthyl methyl ether, menthoxypropane 1,2-diol, menthone glycerol acetal (9-methyl-6- (1-methylethyl) -1,4-dioxaspiro (4.5) decane-2-methanol), monomenthyl succinate, menthyl ethylamido oxalate (CAS No. 1122460-01-8 ), 2-hydroxymethyl-3,5,5-trimethylcyclohexanol, 2-isopropyl-N, 2,3-trimethylbutyramide (FEMA 3804), N-ethyl-p-menthane-3-carboxamide (FEMA 3455), especially 1R, 3R , 4S-N-ethyl-p-menthane-3-carboxamide, ethyl-3- (p-menthane-3-carboxamido) acetate (FEMA 4309), (1R, 2S, 5R) -N- (4-methoxyphenyl) pentanhane carboxamide (FEMA 4681), N-ethyl-2,2-diisopropylbutanamide (FEMA 4557), N-cyclopropyl-5-methyl -2-propan-2-ylcyclohexane-1-carboxamide (FEMA 4693), N- (4-cyanomethylphenyl) pentanhane carboxamide (FEMA 4496), N- (2- (pyridin-2-yl) ethyl) -3- p-menthane carboxamide (FEMA 4549), N- (2-hydroxyethyl) -2-isopropyl-2,3-dimethylbutanamide (FEMA 4602), N- (1,1-dimethyl-2-hydroxyethyl) -2,2-diethylbutanamide ( FEMA 4603), (2S, 5R) -N- [4- (2-amino-2-oxoethyl) phenyl] pentanhane carboxamide (FEMA 4684), 2 - [(2-p-menthoxy) ethoxy] ethanol (FEMA 4718), (2,6-diethyl-5-isopropyl-2-methyltetrahydropyrane (FEMA 4680), 3- (1-menthoxy) -2-methylpropane-1,2-diol (FEMA 3849), p-menthane-3, 8-diol, especially (+) - cis-p-menthane-3,8-diol and (-) - trans-p-menthane-3,8-diol and mixtures of (+) - cis-p-menthane-3 , 8-diol and (-) - trans-p-menthane-3,8-diol, especially a mixture in the weight ratio 62:38 (FEMA 4053), (1R, 3R, 4S) -3-menthyl-3,6- dioxaheptanoate, (1R, 2S, 5R) -3-menthylmethoxyaceta t, (1R, 2S, 5R) -3-menthyl-3,6,9-trioxadecanoate, (1R, 2S, 5R) -3-menthyl-3,6,9-trioxadecanoate, (1R, 2S, 5R) - 3-menthyl (2-hydroxyethoxy) acetate, (1R, 2S, 5R) -menthyl-11-hydroxy-3,6,9-trioxaundecanoate, (-) - cubebol (FEMA 4497), N- (4-cyanomethylphenyl) -p-menthane carboxamide, N, N-dimethyl-menthyl succinamide (2-isopropyl-5-methylcyclohexyl-4- (dimethylamino) -4-oxo-butanoate, FEMA 4230), 6-isopropyl-3,9-dimethyl-1,4-dioxaspiro [4.5 ] decan-2-one (FEMA 4285), N-benzo [1,3] dioxol-5-yl-3-p-menthane carboxamide, N-benzoxazol-4-yl-3-p-menthane carboxamide, N-4 ([1,2,4] -triazol-1-yl) -phenyl-3-p-menthane-carboxamide, N-4- (pyrazol-1-yl) -phenyl-3-p-menthane-carboxamide, N- (1-isopropyl 1,2-dimethylpropyl) -1,3-benzodioxole-5-carboxamide, mixtures of 2,2,5,6,6-pentamethyl-2,3,6,6a-tetrahydropentalene-3a (1H) -ol and 5 - (2-hydroxy-2-methylpropyl) -3,4,4-trimethylcyclopent-2-en-1-one according to US 20070274928 A1 , (1S, 2S, 5R) -N- (4- (cyanomethyl) phenyl) -2-isopropyl-5-methylcyclohexanecarboxamide, neo-menthyl lactate (2S), neo-menthyl lactate acetate [(1S, 2S, 5R) -2-isopropyl -5-methylcyclohexyl-2 (S) -acetoxypropanoate], 1-isopropyl-4-methyl-bicyclo [2.2.21oct-5-ene-2,3-dicarbinol according to WO 2007/022651 , as well as mixtures of these substances. Particularly preferred cooling agents are selected from menthol, in particular (-) - menthol, furthermore from isopulegol, in particular (-) - isopulegol (FEMA 2962), N-2,3-trimethyl-2-isopropylbutamide, menthyl lactate, menthylpyrrolidonecarboxylic acid, menthyl methyl ether, menthoxypropane 1,2-diol, menthone glycerol acetal (9-methyl-6- (1-methylethyl) -1,4-dioxaspiro (4.5) decane-2-methanol), monomenthyl succinate, menthyl ethylamido oxalate (CAS No. 1122460-01-8 ), 2-hydroxymethyl-3,5,5-trimethylcyclohexanol, 2-isopropyl-N, 2,3-trimethylbutyramide (FEMA 3804), N-ethyl-p-menthane-3-carboxamide (FEMA 3455), especially 1R, 3R , 4S-N-ethyl-p-menthane-3-carboxamide, ethyl-3- (p-menthane-3-carboxamido) acetate (FEMA 4309), (1R, 2S, 5R) -N- (4-methoxyphenyl) - p-menthane carboxamide (FEMA 4681), N-ethyl-2,2-diisopropylbutanamide (FEMA 4557), N-cyclopropyl-5-methyl-2-propan-2-ylcyclohexane-1-carboxamide (FEMA 4693), N- (4 Cyanomethylphenyl) pentanhane carboxamide (FEMA 4496), N- (2- (pyridin-2-yl) ethyl) -3-p-menthane carboxamide (FEMA 4549), N - (2-hydroxyethyl) -2-isopropyl-2,3-dimethylbutanamide (FEMA 4602), N- (1,1-dimethyl-2-hydroxyethyl) -2,2-diethylbutanamide (FEMA 4603), (2S, 5R) N- [4- (2-amino-2-oxoethyl) phenyl] pentanhane carboxamide (FEMA 4684), 2 - [(2-p-menthoxy) ethoxy] ethanol (FEMA 4718), (2,6-diethyl 5-isopropyl-2-methyltetrahydropyran (FEMA 4680), 3- (1-menthoxy) -2-methylpropane-1,2-diol (FEMA 3849), p-menthane-3,8-diol, especially (+) - cis-p-menthane-3,8-diol and (-) - trans-p-menthane-3,8-diol and mixtures of (+) - cis-p-menthane-3,8-diol and (-) - trans-p-menthane-3,8-diol, especially a 62:38 weight ratio mixture (FEMA 4053), (1R, 3R, 4S) -3-menthyl-3,6-dioxaheptanoate, (1R, 2S, 5R) 3-menthylmethoxyacetate, (1R, 2S, 5R) -3-menthyl-3,6,9-trioxadecanoate, (1R, 2S, 5R) -3-menthyl-3,6,9-trioxadecanoate, (1R, 2S, 5R) -3-menthyl- (2-hydroxyethoxy) acetate, (1R, 2S, 5R) -menthyl-11-hydroxy-3,6,9-trioxaundecanoate, (-) - cubebol (FEMA 4497), N- (4 Cyanomethylphenyl) pentanhane carboxamide, N, N-dimethylmenthyl succinamide (2-isopropyl-5-methylcyc lohexyl 4- (dimethylamino) -4-oxobutanoate, FEMA 4230), 6-isopropyl-3,9-dimethyl-1,4-dioxaspiro [4.5] decan-2-one (FEMA 4285), and mixtures of these substances. Cooling agents preferred according to the invention are L-menthol, DL-menthol, isopulegol, menthyl lactate, menthylpyrrolidonecarboxylic acid, menthylmethyl ether, menthoxypropanediol, menthone-glycerol acetal (9-methyl-6- (1-methylethyl) -1,4-dioxaspiro (4.5) decane-2-methanol) , Monomenthyl succinate and 2-hydroxymethyl-3,5,5-trimethylcyclohexanol, as well as mixtures thereof. Highly preferred is L-menthol, isopulegol, menthyl lactate, menthoxypropanediol and menthylpyrrolidonecarboxylic acid and mixtures thereof. Most preferred is L-menthol. If the abovementioned compounds are unspecified with regard to their stereoisomers, the all-eqitorial isomers of the abovementioned compounds are to be regarded as preferred.

Preferred compositions according to the invention contain one or more cooling agents in a total amount of 0.01-5 wt.%, Preferably in a total amount of 0.05-2 wt.%, Particularly preferably in a total amount of 0.1-1 wt. -%, most preferably in a total amount of 0.2-0.6 wt .-%, wherein the amounts are based on the weight of the composition.

Preferred particles of the invention contain from 15 to 65% by weight, more preferred Particles 20 to 60% by weight, even more preferred particles 22.5 to 55% by weight and especially preferred particles 25 to 50% by weight of one or more cosmetic active ingredients selected from fragrances, cooling agents and perfume-cooling agent mixtures ,

In summary, preferred particles according to the invention are characterized in that the total amount of at least one semicrystalline polymer having C ₈ -C ₃₀ -alkyl side chains contains 50-75% by weight and the total amount of at least one cosmetic active ingredient selected from fragrances, cooling active substances and fragrance substances. Cooling agent mixtures, 25-50 wt .-%, is, in each case based on the particle weight.

The particles according to the invention (ie polymer plus active ingredient) also preferably have certain physical properties which in turn can be controlled by the nature of the polymer and of the active ingredient and by their quantitative ratio. According to preferred particles are characterized by a melting point in the range of 25-40 ° C, preferably 26-35 ° C, more preferably 27-33 ° C, most preferably 29-31 ° C, measured according to ASTM D 36 , In order to achieve optimum results with regard to the subsequent form of application in cosmetics, it has proven particularly suitable if the particles according to the invention have a number-average particle diameter in the range from 50 nm to 100 .mu.m, preferably 100 nm to 80 .mu.m, particularly preferably 500 nm to 50 microns, exceptionally preferably 1 micron to 30 microns.

The particles of the invention are particularly suitable for use in cosmetic compositions. They have proven particularly useful in deodorant and antiranspirant compositions. In this particular field of application, in particular, the administration form of the roll-on has proven to be a particularly suitable field of use for the particles according to the invention.

• a) Wasser,
• b) mindestens einen Deodorant- oder Antitranspirant-Wirkstoff,
• c) mindestens ein Polymer, ausgewählt aus Polysacchariden, deren Estern und/oder Ethern sowie Mischungen hiervon,
• d) 0,01–10 Gew.-%, bezogen auf das Gewicht der kosmetischen Zusammensetzung, eines oder mehrerer erfindungsgemäßer Partikel.

A further subject of the present invention is an antiperspirant composition for roll-on application comprising the four following components:

• a) water,
• b) at least one deodorant or antiperspirant active,
• c) at least one polymer selected from polysaccharides, their esters and / or ethers and mixtures thereof,
• d) 0.01-10% by weight, based on the weight of the cosmetic composition, of one or more particles according to the invention.

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

The compositions of the invention contain at least one deodorant or antiperspirant active. These substances as well as preferred representatives from the respective groups are described below.

Antiperspirant active ingredients preferred according to the invention are selected from the water-soluble astringent inorganic and organic salts of aluminum, zirconium and zinc or any desired mixtures of these salts. According to the invention, water solubility is understood as meaning a solubility of at least 5% by weight at 20 ° C., that is to say amounts of at least 5 g of the antiperspirant active are soluble in 95 g of water at 20 ° C. Particularly preferred antiperspirant active ingredients 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 or 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 or activated (depolymerized) form.

Also preferred are aluminum sesquichlorohydrate, aluminum dichlorohydrate, aluminum chlorohydrex-propylene glycol (PG) or aluminum chlorohydrex-polyethylene glycol (PEG), aluminum or aluminum zirconium glycol complexes, e.g. Aluminum or aluminum zirconium-propylene glycol complexes, aluminum sesquichlorohydrex PG or aluminum sesquichlorohydrex PEG, aluminum PG dichlorohydrex or aluminum PEG dichlorhydrex, aluminum hydroxide, further selected from the aluminum zirconium chlorohydrates, such as aluminum zirconium trichlorohydrate, aluminum zirconium tetrachlorohydrate, Aluminiumzirconiumpentachlorhydrat, Aluminiumzirconiumoctachlorhydrat, the aluminum-zirconium chlorohydrate glycine complexes, such as Aluminiumzirconiumtrichlorhydrexglycin, Aluminiumzirconiumtetrachlorhydrexglycin, Aluminiumzirconiumpentachlorhydrexglycin, Aluminiumzirconiumoctachlorhydrexglycin, potassium aluminum sulphate (KAl (SO _{4) 2} · 12H ₂ O, alum), Aluminiumundecylenoylcollagenaminosäure, Natriumaluminiumlactat + aluminum sulfate, sodium aluminum, aluminum bromohydrate, aluminum chloride , the complexes of zinc and sodium salts, the complexes of lanthanum and cerium, the aluminum salts of lipoamino acids, aluminum sulfate, aluminum lactate, aluminum chlorhydroxyallantoinate, sodium aluminum chlorhydroxylactate, zinc chloride, zinc sulfocarbolate, zinc sulfate, zirconium oxyhalides, in particular zirconyl oxychlorides, zirconyl hydroxy halides, in particular zirconyl chlorohydrate ).

Antiperspirant active ingredients which are particularly preferred according to the invention are selected from what are known as "activated" aluminum and aluminum zirconium salts, which are also referred to as "enhanced activity" as antiperspirant active ingredients. Such agents are known in the art and are also commercially available. Activated aluminum and aluminum zirconium salts typically have a HPLC peak 4-to-peak 3 area ratio of at least 0.4, preferably at least 0.7, more preferably at least 0.9, with at least 70% of the aluminum attributable to these peaks ,

Activated aluminum and aluminum zirconium salts do not necessarily have to be used as a spray-dried powder. Antiperspirant active agents which are likewise preferred according to the invention are nonaqueous solutions or solubilisates of an activated aluminum or aluminum zirconium antiperspirant salt which are obtained by adding an effective amount of a polyhydric alcohol containing 3 to 6 carbon atoms and 3 to 6 hydroxyl groups, preferably propylene glycol, sorbitol and pentaerythritol, are stabilized against the loss of activation against the rapid degradation of the HPLC peak 4: peak 3 area ratio of the salt.

For example, preferred are compositions containing by weight (USP): 18-45% by weight of an activated aluminum or aluminum zirconium salt, 55-82% by weight of at least one anhydrous polyhydric alcohol of 3 to 6 carbon atoms and 3 to 6 Hydroxyl groups, preferably propylene glycol, butylene glycol, diethylene glycol, dipropylene glycol, glycerol, sorbitol and pentaerythritol, more preferably propylene glycol.

Also particularly preferred are complexes of activated antiperspirant aluminum or aluminum-zirconium salts with a polyhydric alcohol containing 20-50% by weight, more preferably 20-42% by weight, activated antiperspirant aluminum or aluminum zirconium salt and 2-16% by weight % molecularly bound water, the remainder to 100 wt .-% is 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.

Further preferred antiperspirant active ingredients are basic calcium aluminum salts. These salts are prepared by reacting calcium carbonate with aluminum chlorhydroxide or aluminum chloride and aluminum powder or by adding calcium chloride dihydrate to aluminum chlorhydroxide. Other preferred antiperspirant actives are aluminum-zirconium complexes buffered with salts of amino acids, especially alkali and alkaline earth glycinates.

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

Further particularly preferred solid antiperspirant activated salt compositions contain 48-78% by weight (USP), preferably 66-75% by weight of an activated aluminum or aluminum zirconium salt and 1-16% by weight, preferably 4-13% by weight. -% molecularly bound water (water of hydration), further sufficient water-soluble calcium salt that the Ca: (Al + Zr) weight ratio is 1: 1-1: 28, preferably 1: 2-1: 25, and so much glycine that the glycine to (Al + Zr) weight ratio 2: 1-1: 20, preferably 1: 1-1: 10. Further particularly preferred solid antiperspirant activated salt compositions contain 48-78% by weight (USP), preferably 66-75% by weight of an activated aluminum or aluminum zirconium salt and 1-16% by weight, preferably 4-13% by weight molecularly bound Water, further sufficient water-soluble calcium salt, that the Ca: (Al + Zr) weight ratio is 1: 1-1: 28, preferably 1: 2-1: 25, and as much hydroxyalkanoic acid that the hydroxyalkanoic acid to (Al + Zr) - Weight ratio 2: 1-1: 20, preferably 1: 1-1: 10. Preferred water-soluble calcium salts for the stabilization of antiperspirant salts are selected from calcium chloride, calcium bromide, calcium nitrate, calcium citrate, calcium formate, calcium acetate, calcium gluconate, calcium ascorbate, calcium lactate, calcium glycinate, calcium carbonate, calcium sulfate, calcium hydroxide, and mixtures thereof.

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

Further preferred antiperspirant actives are activated aluminum or aluminum zirconium salts containing 5-78% by weight (USP) of an activated antiperspirant aluminum or aluminum zirconium salt, an amino acid or hydroxyalkanoic acid in such amount to form an (amino acid or hydroxyalkanoic acid). to provide (Al + Zr) weight ratio of 2: 1-1: 20, and preferably 1: 1 to 1:10, and a water-soluble strontium salt in such an amount to have a Sr: (Al + Zr) weight ratio of 1: 1-1: 28 and preferably 1: 2-1: 25. Particularly preferred solid antiperspirant activated salt compositions contain 48-78 weight percent (USP), preferably 66-75 weight percent of an activated aluminum or aluminum zirconium salt, and 1-16 weight percent, preferably 4-13 weight percent. % molecularly bound water, further enough so much water-soluble strontium salt, that the Sr: (Al + Zr) weight ratio is 1: 1-1: 28, preferably 1: 2-1: 25, and so much amino acid that the amino acid to (Al + Zr) weight ratio 2: 1-1: 20, preferably 1: 1-1: 10.

Further particularly preferred solid antiperspirant activated salt compositions contain 48-78% by weight (USP), preferably 66-75% by weight of an activated aluminum or aluminum zirconium salt and 1-16% by weight, preferably 4-13% by weight. % molecularly bound water, further enough water soluble strontium salt that the Sr: (Al + Zr) weight ratio is 1: 1-1: 28, preferably 1: 2-1: 25, and enough glycine to give the glycine (Al + Zr) weight ratio 2: 1-1: 20, preferably 1: 1-1: 10.

Further particularly preferred solid antiperspirant activated salt compositions contain 48-78% by weight (USP), preferably 66-75% by weight of an activated aluminum or aluminum zirconium salt and 1-16% by weight, preferably 4-13% by weight % molecularly bound water, further enough water soluble strontium salt that the Sr: (Al + Zr) weight ratio is 1: 1-1: 28, preferably 1: 2-1: 25, and enough hydroxyalkanoic acid to give the hydroxyalkanoic acid ( Al + Zr) weight ratio 2: 1-1: 20, preferably 1: 1-1: 10.

Further preferred activated aluminum salts are those of the general formula Al ₂ (OH) _6-a Xa in which X is Cl, Br, I or NO ₃ and "a" is a value of 0.3 to 5, preferably of 0.8 to 2 , 5 and more preferably 1 to 2, such that the molar ratio of Al: X is 0.9: 1 to 2.1: 1. These salts generally associate some hydration water, typically 1 to 6 moles of water per mole of salt. Particularly preferred is aluminum chlorohydrate (ie, X is Cl in the aforementioned formula) and especially 5/6 basic aluminum chlorohydrate wherein "a" is 1 such that the molar ratio of aluminum to chlorine is 1.9: 1 to 2.1: 1 ,

Preferred activated aluminum-zirconium salts are those which are mixtures or complexes of the aluminum salts described above with zirconium salts of the formula ZrO (OH) _2-pb Y _b represent wherein Y is Cl, Br, I, NO ₃ or SO _4, b is a rational number from 0.8 to 2 and p is the valence of Y. The zirconium salts also typically associate some hydration water associatively, typically 1 to 7 moles of water per mole of salt. Preferably, the zirconium salt is zirconyl hydroxychloride of the formula ZrO (OH) _2-b Cl _b , wherein b is a rational number of from 0.8 to 2, preferably from 1.0 to 1.9. Preferred aluminum-zirconium salts have an Al: Zr molar ratio of 2 to 10 and a metal: (X + Y) ratio of 0.73 to 2.1, preferably 0.9 to 1.5. A particularly preferred salt is aluminum-zirconium chlorohydrate (ie, X and Y are Cl) which has an Al: Zr ratio of 2 to 10 and a molar metal: Cl ratio of 0.9 to 2.1. The term aluminum-zirconium chlorohydrate includes the tri-, tetra-, penta- and octachlorohydrate forms.

Zirconium salts preferred according to the invention have the general formula ZrO (OH) _2-a Cl _a .xH ₂ O where a = 1.5-1.87; x = 1-7, where a and x are rational numbers.

The antiperspirant active ingredients can be used both in solubilized and in undissolved, suspended form. If the antiperspirant active ingredients are suspended in a water-immiscible carrier, it is preferred for reasons of product stability that the active ingredient particles have a number-average particle size of 0.1-200 .mu.m, preferably 1-50 .mu.m, particularly preferably 3-20 .mu.m and extraordinarily preferably 5-10 μm.

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

Preferred aluminum zirconium chlorohydrates generally have the empirical formula Al _n Zr (OH) _{[3n + 4-m (n + 1)]} (Cl) _{[m (n + 1)]} where n = 2.0-10.0, preferably 3 , 0-8, .0, m = 0.77-1.11 (corresponding to a molar metal (Al + Zr) to chloride ratio of 1.3-0.9), preferably m = 0.91 1.11 (corresponding to M: Cl = 1.1-0.9), and particularly preferably m = 1.00-1.11 (corresponding to M: Cl = 1.0-0.9), furthermore very preferably m = 1.02-1.11 (corresponding to M: Cl = 0.98-0.9) and more preferably m = 1.04-1.11 (corresponding to M: Cl = 0.96-0.9).

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

Usually, the preferred aluminum zirconium chlorohydrates are associated with an amino acid to prevent polymerization of the zirconium species during manufacture. Preferred stabilizing amino acids are selected from glycine, alanine, leucine, isoleucine, β-alanine, cysteine, valine, serine, tryptophan, phenylalanine, methionine, β-amino-n-butanoic acid and γ-amino-n-butanoic acid and the salts thereof, each in the d-form, the l-form and the dl-form; Glycine is particularly preferred. The amino acid is contained in the salt in an amount of 1-3 moles, preferably 1.3-1.8 moles, per mole of zirconium. Preferred antiperspirant salts are aluminum zirconium tetrachlorohydrate (Al: Zr = 2-6, M: Cl = 0.9-1.3), in particular salts having a molar metal to chloride ratio of 0.9-1.1, preferably 0.9 -1.0.

Also preferred according to the invention are aluminum zirconium chlorohydrate-glycine salts which are stabilized with betaine ((CH ₃ ) ₃ N ⁺ -CH ₂ -COO ^- ). Particularly preferred corresponding compounds have a total molar (betaine + glycine) / Zr ratio of (0.1-3.0): 1, preferably (0.7-1.5): 1, and a betaine molar ratio Glycine of at least 0.001: 1 on. In a particularly preferred embodiment according to the invention, the particularly effective antiperspirant salt comprises a so-called "activated" salt, in particular one with a high HPLC peak 5-aluminum content, in particular with a peak 5 surface of at least 33%, particularly preferred at least 45%, based on the total area under peaks 2-5, measured by HPLC of a 10% by weight aqueous solution of the active ingredient under conditions in which the aluminum species are resolved into at least 4 consecutive peaks (with peaks 5).

Preferred aluminum zirconium salts are those having a high HPLC peak 5-aluminum content (also referred to as "E ⁵ AZCH"). Furthermore, those activated "E ⁵ AZCH" salts whose HPLC peak has a 4-to-peak 3 area ratio of at least 0.4, preferably at least 0.7, particularly preferably at least 0.9, are preferred. Further particularly preferred antiperspirant active ingredients are those aluminum zirconium salts having a high HPLC peak 5-aluminum content, which are additionally stabilized with a water-soluble strontium salt and / or with a water-soluble calcium salt. Further preferred antiperspirant active ingredients are selected from astringent titanium salts.

The antiperspirant active ingredients can be used as nonaqueous solutions or as glycolic solubilisates.

Particularly preferred compositions according to the invention are characterized in that the at least one antiperspirant active ingredient is present in an amount of 3-27% by weight, preferably 5-22% by weight and particularly preferably 10-20% by weight on the total weight of the anhydrous active substance (USP) in the total composition.

In a further particularly preferred embodiment, the compositions according to the invention can contain both at least one deodorant and at least one antiperspirant active ingredient. Deodorant active ingredients which are preferred according to the invention are odor absorbers, deodorizing ion exchangers, germ-inhibiting agents, prebiotic active components and also enzyme inhibitors or, particularly preferred, combinations of said active substances. Silicates serve as odor absorbers, which at the same time advantageously support the rheological properties of the composition according to the invention. Particularly preferred silicates according to the invention include, in particular, phyllosilicates and among these, in particular, montmorillonite, kaolinite, illite, beidellite, nontronite, saponite, hectorite, bentonite, smectite and talcum. Other preferred odor absorbers are, for example, zeolites, Zinkricinoleat, cyclodextrins, certain metal oxides, such as. B. Alumina, as well as chlorophyll. They are preferably used in an amount of 0.1-10% by weight, more preferably 0.5-7% by weight and most preferably 1-5% by weight, based in each case on the total composition.

According to the invention, germ-inhibiting or antimicrobial active ingredients are understood as meaning those active substances which reduce the number of skin germs participating in the formation of the odor or inhibit their growth. These organisms include, among others, various species from the group of staphylococci, the group of Corynebacteria, anaerococci and micrococci.

Preferred antimicrobial or antimicrobial agents according to the invention are in particular organohalogen compounds and halides, quaternary ammonium compounds, a number of plant extracts and zinc compounds. These include triclosan, chlorhexidine and chlorhexidine gluconate, 3,4,4'-trichlorocarbanilide, bromochlorophene, dichlorophen, chlorothymol, chloroxylenol, hexachlorophene, dichloro-m-xylenol, dequalinium chloride, domiphenbromide, ammonium phenolsulfonate, benzalkonium halides, benzalkonium cetyl phosphate, benzalkonium saccharinates, benzethonium chloride, cetylpyridinium chloride, Laurylpyridinium chloride, laurylisoquinolinium bromide, methylbenzethonium chloride. Furthermore, phenol, phenoxyethanol, disodium dihydroxyethylsulfosuccinylundecylenate, sodium bicarbonate, zinc lactate, sodium phenolsulfonate and zinc phenolsulfonate, ketoglutaric acid, terpene alcohols such as. As farnesol, chlorophyllin copper complexes, α-monoalkyl glycerol ether with a branched or linear saturated or unsaturated, optionally hydroxylated C ₆ -C ₂₂ alkyl, particularly preferably α- (2-ethylhexyl) glycerol ether, commercially available as Sensiva ^® SC 50 (ex Schülke & Mayr), carboxylic esters of mono-, di- and triglycerin (eg glycerol monolaurate, diglycerol monocaprinate), lantibiotics and plant extracts (eg green tea and components of lime blossom oil).

Further preferred deodorant active substances are selected from so-called prebiotic active components, which according to the invention are to be understood as meaning those components which inhibit only or at least predominantly the odor-causing germs of the skin microflora, but not the desired ones, that is to say the non-odor-causing germs belonging to a healthy skin microflora. Explicitly, here are e.g. Conifer extracts, in particular from the group of Pinaceae, and plant extracts from the group of Sapindaceae, Araliaceae, Lamiaceae and Saxifragaceae, in particular extracts from Picea spp., Paullinia sp., Panax sp., Lamium album or Ribes nigrum and mixtures of these substances, also included ,

Further preferred deodorant active ingredients are selected from the germ-inhibiting active perfume oils and Deosafe ^® -Parfümölen that, Haarmann and Reimer, by the company Symrise previously available.

The enzyme inhibitors include substances which inhibit the enzymes responsible for the sweat decomposition, in particular arylsulfatase, β-glucuronidase, aminoacylase, esterases, lipases and / or lipoxigenase, e.g. B. trialkylcitric acid, in particular triethyl citrate, or zinc glycinate.

Preferred deodorant or antiperspirant compositions according to the invention are characterized in that the at least one deodorant active ingredient is selected from arylsulfatase inhibitors, β-glucuronidase inhibitors, aminoacylase inhibitors, esterase inhibitors, lipase inhibitors and lipoxigenase inhibitors, α- Monoalkylglycerinethern with a branched or linear saturated or unsaturated, optionally hydroxylated C ₆ -C ₂₂ alkyl radical, in particular α- (2-ethylhexyl) glycerol ether, phenoxyethanol, germ-inhibiting perfume oils, Deosafe ^® -Parfümölen (Deosafe ^® is a registered trademark of Symrise , formerly Haarmann & Reimer), prebiotic active compounds, trialkylcitric acid esters, in particular triethyl citrate, active compounds which reduce the number of skin germs from the group of staphylococci, corynebacteria, anaerococci and micrococci and inhibit their growth, zinc compounds , in particular zinc phenolsulfonate and zinc ricinoleate, organohalogen compounds, in particular triclosan, chlorhexidine, chlorhexidine gluconate and benzalkonium halides, quaternary ammonium compounds, in particular cetylpyridinium chloride, odor absorbers, in particular silicates and zeolites, sodium bicarbonate, lantibiotics, and mixtures of the abovementioned substances.

Further preferred deodorant or antiperspirant compositions according to the invention are characterized in that the at least one deodorant active ingredient in a total amount of 0.1-10 wt .-%, preferably 0.2-7 wt .-%, particularly preferably 0.3 -5 wt .-% and most preferably 0.4-1.0 wt .-%, each based on the total weight of the active substance of the deodorant active ingredient or the deodorant active ingredients in the overall composition. In a further particularly preferred embodiment, the compositions according to the invention can contain both at least one deodorant and at least one antiperspirant active ingredient.

The compositions of the invention further contain at least one polymer which is selected from polysaccharides, their esters and / or ethers and mixtures thereof. Polysaccharides (also called multiple sugars, multiple sugars, glycans / glycans or polyoses) are carbohydrates that are linked by a large number (at least 10) monosaccharides (simple sugars) via a glycosidic linkage. These are biopolymers in which there are unknown numbers of monosaccharide units or a statistical molecular size distribution. Polysaccharides are, for example, glycogen, starch (amylose and amylopectin), pectins, chitin, callose and cellulose. An important heteropolysaccharide is, for example, xanthan. Preferred compositions according to the invention are characterized in that they contain the at least one polymer selected from polysaccharides, their esters and / or ethers and mixtures thereof, in a total amount of 0.05-1% by weight, preferably 0.1-0 , 7 wt .-%, particularly preferably 0.1-0.3 wt .-%, each based on the total weight of the composition.

Among the polysaccharides, their esters and / or ethers and mixtures thereof, cellulose and the corresponding derivatives are particularly preferred.

Preferred cellulose ethers are selected from hydroxyalkylcelluloses, in particular from hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, cetylhydroxyethylcellulose, hydroxybutylmethylcellulose and methylhydroxyethylcellulose and mixtures thereof. Highly preferred is hydroxyethylcellulose.

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

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

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

It has been found that the compositions according to the invention may, with particular preference, additionally comprise dehydroxanthan gum. With the combination of dehydroxanthan gum with at least one nonionic thickening polymer, which is selected from cellulose and cellulose ethers and mixtures thereof, the viscosities of the compositions according to the invention in the application-technically required range between 1500 and 2500 mPas, the viscosity at 23 ° C with a rotational viscometer Brookfield, RVF, spindle 4, shear rate (revolution frequency) 20 min ^-1 , without helipath.

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

Further preferred compositions according to the invention are characterized in that dehydroxanthan gum and the total amount of nonionic thickening polymer selected from cellulose and cellulose ethers and mixtures thereof, in a weight ratio of 1 to 2.5, preferably 1.2 to 2.0, particularly preferably 1 , 4 to 1.6, are included.

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

Particularly preferred compositions according to the invention are characterized in that they contain, based in each case on the total weight of the composition, 0.1-0.8% by weight of dehydroxanthan gum and 0.1 to 0.7% by weight of hydroxyethylcellulose.

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

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

Further preferred antiperspirant compositions according to the invention are characterized in that at least one nonionic emulsifier having an HLB value in the range from 12 to 18 is present. Preferred antiperspirant compositions according to the invention are characterized in that the nonionic oil-in-water emulsifiers having an HLB value of greater than 7 to 20 are selected from ethoxylated C ₈ -C ₂₄ -alkanols having an average of 10 to 100 mol of ethylene oxide per mol, ethoxylated C ₈ -C ₂₄ carboxylic acids having an average of 10-100 moles of ethylene oxide per mole, with an average of 20-100 moles of ethylene oxide per mole of ethoxylated sorbitan monoesters of linear saturated and unsaturated C ₁₂ -C ₃₀ carboxylic acids, which may be hydroxylated, especially those of Myristic, palmitic, stearic or mixtures of these fatty acids, silicone copolyols with ethylene oxide units or with ethylene oxide and propylene oxide units, alkyl mono- and oligoglycosides having 8 to 22 carbon atoms in the alkyl radical and their ethoxylated analogs, ethoxylated sterols, partial esters of polyglycerols with n = 2 to 10 glycerol units and m it esterifies 1 to 4 saturated or unsaturated, linear or branched, optionally hydroxylated C ₈ -C ₃₀ fatty acid residues, provided that they have an HLB value of greater than 7 to 20, and mixtures of the abovementioned substances.

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

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

Particular preference is given to using the C ₁₂ -C ₁₈ -alkanols or the C ₁₂ -C ₁₈ -carboxylic acids with in each case 10-30 units of ethylene oxide per molecule and mixtures of these substances, in particular ceteth-10, ceteth-12, ceteth-20, ceteth- 30, steareth-10, steareth-12, steareth-20, steareth-21, steareth-30, ceteareth-10, ceteareth-12, ceteareth-20, ceteareth-30, laureth-12 and beheneth-20. Preferred having an average of 20-100 moles of ethylene oxide per mole of ethoxylated sorbitan monoesters of linear saturated and unsaturated C ₁₂ -C ₃₀ carboxylic acids which may be hydroxylated are selected from Polysorbate-20, Polysorbate-40, Polysorbate-60 and Polysorbate-80.

Furthermore, preference is given to using C ₈ -C ₂₂ -alkyl mono- and -oligoglycosides. C ₈ -C ₂₂ -alkyl mono- and -oligoglycosides are known, commercially available surfactants and emulsifiers. They are prepared in particular by reacting glucose or oligosaccharides with primary alcohols having 8-22 carbon atoms. With regard to the glycoside radical, both monoglycosides in which a cyclic sugar radical is glycosidically linked to the fatty alcohol and oligomeric glycosides having a degree of oligomerization of up to about 8, preferably 1-2, are suitable. The degree of oligomerization is a statistical mean, which is based on a homolog distribution typical for such technical products. Products which are obtainable under the trademark Plantacare ^®, a glucosidically bonded C ₈ -C ₁₆ alkyl group containing at an oligoglucoside whose average degree of oligomerization at 1-2, especially 1.2-1.4, is located.

Particularly preferred C ₈ -C ₂₂ alkyl mono- and oligoglycosides are selected from octyl glucoside, decyl glucoside, lauryl glucoside, palmityl glucoside, isostearyl glucoside, stearyl glucoside, arachidyl glucoside and behenyl glucoside and mixtures thereof. The glucamine-derived acylglucamides are also suitable as non-ionic oil-in-water emulsifiers.

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

Furthermore, partial esters of polyglycerols having 2 to 10 glycerol units and having 1 to 4 saturated or unsaturated, linear or branched, optionally hydroxylated C ₈ -C ₃₀ fatty acid residues are preferably esterified, if they have an HLB value of greater than 7 to 20. Particularly preferred are Diglycerinmonocaprylat, Diglycerinmonocaprat, diglycerol, Triglycerinmonocaprylat, Triglycerinmonocaprat, triglycerol, Tetraglycerinmonocaprylat, Tetraglycerinmonocaprat, Tetraglycerinmonolaurat, Pentaglycerinmonocaprylat, Pentaglycerinmonocaprat, Pentaglycerinmonolaurat, Hexaglycerinmonocaprylat, Hexaglycerinmonocaprat, Hexaglycerinmonolaurat, Hexaglycerinmonomyristat, Hexaglycerinmonostearat, Decaglycerinmonocaprylat, Decaglycerinmonocaprat, decaglyceryl monolaurate, decaglyceryl monomyristate, Decaglycerinmonoisostearat, decaglycerol monostearate, Decaglycerinmonooleat , Decaglycerinmonohydroxystearat, Decaglycerindicaprylat, Decaglycerindicaprat, Decaglycerindilaurat, Decaglycerindimyristat, Decaglycerindiisostearat, Decaglycerindistearat, Decaglycerindioleat, Decaglycerindihydroxystearat, Decaglycerintricaprylat, Decaglycerintricaprat, Decaglycerintrilaurat, Decaglycerintrimyristat, Decaglycerintriisostearat, Decaglycerintristearat, Decaglycer intrioleate and decaglycerol trihydroxystearate.

Particularly preferred antiperspirant compositions according to the invention comprise at least one oil-in-water emulsifier having an HLB value of greater than 7 to 20 in a total amount of 0.5-5% by weight, preferably 0.8-4% by weight. , particularly preferably 1.2-3 wt .-%, and most preferably 1.5-2 wt .-%, each based on the total composition.

Further antiperspirant compositions which are particularly preferred according to the invention comprise at least one nonionic oil-in-water emulsifier having an HLB value in the range of 12-18 in a total amount of 0.5-5% by weight, preferably 0.8-4% by weight .-%, particularly preferably 1.2-3 wt .-%, and most preferably 1.5-2 wt .-%, each based on the total composition.

Further antiperspirant compositions which are particularly preferred according to the invention contain at least one nonionic oil-in-water emulsifier having an HLB value in the range from _{12 to} 18, which is selected from linear saturated and unsaturated C ₁₂ -C ₂₄ -alkanols, which are selected from 40 ethylene oxide units per molecule are etherified, in a total amount of 0.5-5 wt .-%, preferably 0.8-4 wt .-%, particularly preferably 1.2-3 wt .-%, and most preferably 1 , 5-2 wt .-%, each based on the total composition. The aforementioned oil-in-water emulsifiers are particularly preferably selected from steareth, ceteth, myristeth, laureth, trideceth, arachideth and beheneth, each having 7-40 ethylene oxide units per molecule, in particular steareth-10, steareth-20, steareth-21 , Steareth-30, Steareth-40, Ceteth-10, Ceteth-20, Ceteth-21, Ceteth-30, Ceteth-40, Laureth-10, Laureth-20, Laureth-30, Trideceth-10, Trideceth-20 and Trideceth -30, as well as mixtures thereof.

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

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

Particularly preferred antiperspirant compositions according to the invention are in the form of an oil-in-water emulsion and comprise at least one oil-in-water emulsifier having an HLB value of greater than 7 to 20 in a total amount of 0.5-5% by weight. , preferably 0.8-4 wt .-%, particularly preferably 1.2-3 wt .-%, and most preferably 1.5-2 wt .-%, each based on the total composition.

Further antiperspirant compositions which are particularly preferred according to the invention are in the form of an oil-in-water emulsion and comprise at least one nonionic oil-in-water emulsifier having an HLB value in the range of 12-18 in a total amount of 0.5-5% by weight .-%, preferably 0.8-4 wt .-%, particularly preferably 1.2-3 wt .-%, and most preferably 1.5-2 wt .-%, each based on the total composition.

Further inventively particularly preferred antiperspirant compositions are present as an oil-in-water emulsion and contain at least one nonionic oil-in-water emulsifier having an HLB value in the range of 12-18, the is selected from linear saturated and unsaturated C ₁₂ -C ₂₄ -alkanols etherified with 7-40 ethylene oxide units per molecule, in a total amount of 0.5-5 wt.%, preferably 0.8-4 wt. -%, more preferably 1.2-3 wt .-%, and most preferably 1.5-2 wt .-%, each based on the total composition. The aforementioned oil-in-water emulsifiers are particularly preferably selected from steareth, ceteth, myristeth, laureth, trideceth, arachideth and beheneth, each having 7-40 ethylene oxide units per molecule, in particular steareth-10, steareth-20, steareth-21 , Steareth-30, Steareth-40, Ceteth-10, Ceteth-20, Ceteth-21, Ceteth-30, Ceteth-40, Laureth-10, Laureth-20, Laureth-30, Trideceth-10, Trideceth-20 and Trideceth -30, as well as mixtures thereof.

Further preferred antiperspirant compositions according to the invention are in the form of an oil-in-water emulsion and comprise at least one nonionic oil-in-water emulsifier having an HLB value in the range of 12-18, which is selected from steareth-10, steareth- 20, Steareth 21, Steareth 30, Steareth 40, Ceteth 10, Ceteth 20, Ceteth 21, Ceteth 30, Ceteth 40, Laureth 10, Laureth 20, Laureth 30, Trideceth 10, Trideceth-20 and trideceth-30 and mixtures thereof, in a total amount of 0.5-5 wt .-%, preferably 0.8-4 wt .-%, particularly preferably 1.2-3 wt .-%, and extraordinarily preferably 1.5-2 wt .-%, each based on the total composition.

Water-in-oil emulsifier

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

• – lineare oder verzweigte, gesättigte oder ungesättigte C₁₂–C₃₀-Alkanole, die jeweils mit 1–4 Ethylenoxid-Einheiten pro Molekül verethert sind, welche außerordentlich bevorzugt sind aus Steareth, Ceteth, Myristeth, Laureth, Trideceth, Arachideth und Beheneth mit jeweils 1–4 Ethylenoxid-Einheiten pro Molekül, insbesondere Steareth-2, Steareth-3, Steareth-4, Ceteth-2, Ceteth-3, Ceteth-4, Myristeth-2, Myristeth-3, Myristeth-4, Laureth-2, Laureth-3, Laureth-4, Trideceth-2, Trideceth-3 und Trideceth-4 sowie Mischungen hiervon;
• – lineare gesättigte Alkanole mit 12–30 Kohlenstoffatomen, insbesondere mit 16–22 Kohlenstoffatomen, insbesondere Cetylalkohol, Stearylalkohol, Arachidylalkohol, Behenylalkohol und Lanolinalkohol oder Gemische dieser Alkohole, wie sie bei der technischen Hydrierung von pflanzlichen und tierischen Fettsäuren erhältlich sind;
• – Ester und insbesondere Partialester aus einem Polyol mit 2–6 C-Atomen und linearen gesättigten und ungesättigten Fettsäuren mit 12–30, insbesondere 14–22 C-Atomen, die hydroxyliert sein können. Solche Ester oder Partialester sind z. B. die Mono- und Diester von Glycerin oder Ethylenglycol oder die Monoester von Propylenglycol mit linearen gesättigten und ungesättigten C₁₂–C₃₀-Carbonsäuren, die hydroxyliert sein können, insbesondere diejenigen mit Palmitin- und Stearinsäure, die Sorbitanmono-, -di- oder -triester von linearen gesättigten und ungesättigten C₁₂–C₃₀-Carbonsäuren, die hydroxyliert sein können, insbesondere diejenigen von Myristinsäure, Palmitinsäure, Stearinsäure oder von Mischungen dieser Fettsäuren, die Pentaerythritylmono-, -di-, -tri- und -tetraester und die Methylglucosemono- und -diester von linearen, gesättigten und ungesättigten C₁₂–C₃₀-Carbonsäuren, die hydroxyliert sein können, wovon besonders bevorzugt sind die Mono-, Di-, Tri- und Tetraester von Pentaerythrit mit linearen gesättigten Fettsäuren mit 12–30, insbesondere 14–22 Kohlenstoffatomen, die hydroxyliert sein können, sowie Mischungen hiervon, als Konsistenzgeber und/oder Wasserbinder. Erfindungsgemäß besonders bevorzugt sind die Mono- und Diester. Erfindungsgemäß bevorzugte C₁₂–C₃₀-Fettsäurereste sind ausgewählt aus Laurinsäure-, Myristinsäure-, Palmitinsäure-, Stearinsäure-, Arachinsäure- und Behensäure-Resten; besonders bevorzugt ist der Stearinsäurerest. Erfindungsgemäß besonders bevorzugte nichtionische Wasser-in-Öl-Emulgatoren mit einem HLB-Wert größer 1,0 und kleiner/gleich 7,0 sind ausgewählt aus Glycerylmonostearat, Glyceryldistearat, Glycerylmonopalmitat, Glyceryldipalmitat und Mischungen hiervon;
• – Sterine, also Steroide, die am C3-Atom des Steroid-Gerüstes eine Hydroxylgruppe tragen und sowohl aus tierischem Gewebe (Zoosterine, z. B. Cholesterin, Lanosterin) wie auch aus Pflanzen (Phytosterine, z. B. Ergosterin, Stigmasterin, Sitosterin) und aus Pilzen und Hefen (Mykosterine) isoliert werden und die niedrig ethoxyliert (1–5 EO) sein können;
• – Alkanole und Carbonsäuren mit jeweils 8–24 C-Atomen, insbesondere mit 16–22 C-Atomen, in der Alkylgruppe und 1–4 Ethylenoxid-Einheiten pro Molekül, die einen HLB-Wert größer 1,0 und kleiner/gleich 7,0 aufweisen,
• – Glycerinmonoether gesättigter und/oder ungesättigter, verzweigter und/oder unverzweigter Alkohole einer Kettenlänge von 8–30, insbesondere 12–18 Kohlenstoffatomen,
• – Partialester von Polyglycerinen mit n = 2 bis 10 Glycerineinheiten und mit 1 bis 5 gesättigten oder ungesättigten, linearen oder verzweigten, gegebenenfalls hydroxylierten C₈–C₃₀-Fettsäureresten verestert, sofern sie einen HLB-Wert größer 1,0 bis kleiner/gleich als 7 aufweisen,
• – sowie Mischungen der vorgenannten Substanzen.

Preferred water-in-oil emulsifiers are:

• Linear or branched, saturated or unsaturated C ₁₂ -C ₃₀ alkanols, each etherified with 1-4 ethylene oxide units per molecule, which are highly preferred from steareth, ceteth, myristeth, laureth, trideceth, arachideth and beheneth, each with 1-4 ethylene oxide units per molecule, especially steareth-2, steareth-3, steareth-4, ceteth-2, ceteth-3, ceteth-4, myristeth-2, myristeth-3, myristeth-4, laureth-2, Laureth-3, laureth-4, trideceth-2, trideceth-3 and trideceth-4, and mixtures thereof;
• Linear saturated alkanols having 12-30 carbon atoms, in particular 16-22 carbon atoms, in particular cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol and lanolin alcohol or mixtures of these alcohols, such as are obtainable in the industrial hydrogenation of vegetable and animal fatty acids;
• - Esters and in particular partial esters of a polyol having 2-6 C-atoms and linear saturated and unsaturated fatty acids having 12-30, in particular 14-22 C-atoms, which may be hydroxylated. Such esters or partial esters are, for. The mono- and diesters of glycerol or ethylene glycol or the monoesters of propylene glycol with linear saturated and unsaturated C ₁₂ -C ₃₀ carboxylic acids which may be hydroxylated, especially those with palmitic and stearic acid, the sorbitan mono-, di- or triesters of linear saturated and unsaturated C ₁₂ -C ₃₀ carboxylic acids which may be hydroxylated, in particular those of myristic acid, palmitic acid, stearic acid or of mixtures of these fatty acids, the pentaerythrityl mono-, di-, tri- and tetraesters and the Methyl glucose mono- and diesters of linear, saturated and unsaturated C ₁₂ -C ₃₀ carboxylic acids which may be hydroxylated, of which the mono-, di-, tri- and tetra-esters of pentaerythritol with 12-30 linear saturated fatty acids are particularly preferred, in particular 14-22 carbon atoms, which may be hydroxylated, and mixtures thereof, as consistency and / or water binders. Particularly preferred according to the invention are the mono- and diesters. C ₁₂ -C ₃₀ fatty acid radicals preferred according to the invention are selected from lauric acid, myristic acid, palmitic acid, stearic acid, arachic acid and behenic acid radicals; particularly preferred is the stearic acid residue. Nonionic water-in-oil emulsifiers particularly preferred according to the invention having an HLB value greater than 1.0 and less than or equal to 7.0 are selected from glyceryl monostearate, glyceryl distearate, glyceryl monopalmitate, glyceryl dipalmitate and mixtures thereof;
• Sterols, ie steroids, which carry a hydroxyl group at the C3 atom of the steroid skeleton and both from animal tissue (zoosterols, eg cholesterol, lanosterol) as well as from plants (phytosterols, eg ergosterol, stigmasterol, sitosterol ) and from fungi and yeasts (mycosterols) which may be low ethoxylated (1-5 EO);
• Alkanols and carboxylic acids having in each case 8-24 C atoms, in particular having 16-22 C atoms, in the alkyl group and 1-4 ethylene oxide units per molecule which have an HLB value greater than 1.0 and less than or equal to 7, Have 0,
• - Glycerol monoether saturated and / or unsaturated, branched and / or unbranched Alcohols having a chain length of 8-30, in particular 12-18 carbon atoms,
• - Partialester of polyglycerols with n = 2 to 10 glycerol units and esterified with 1 to 5 saturated or unsaturated, linear or branched, optionally hydroxylated C ₈ -C ₃₀ fatty acid residues, provided they have an HLB value greater than 1.0 to less than / equal to 7,
• - And mixtures of the aforementioned substances.

Particularly preferred is the at least one water-in-oil emulsifier having an HLB value greater than 1.0 and less than or equal to 7.0, preferably in the range of 3-6, selected from linear or branched, saturated or unsaturated C ₁₂ - C ₃₀ alkanols each etherified with 1-4 ethylene oxide units per molecule, which are highly preferred from steareth, ceteth, myristeth, laureth, trideceth, arachideth and beheneth each having 1-4 ethylene oxide units per molecule, especially steareth -2, steareth-3, steareth-4, ceteth-2, ceteth-3, ceteth-4, myristeth-2, myristeth-3, myristeth-4, laureth-2, laureth-3, laureth-4, trideceth-2 , Trideceth-3 and trideceth-4, as well as mixtures thereof. According to the invention, it may be preferable to use only a single water-in-oil emulsifier. In another preferred embodiment, the compositions according to the invention comprise mixtures, in particular technical mixtures, of at least two water-in-oil emulsifiers. Compositions preferred according to the invention are characterized in that they contain at least one water-in-oil emulsifier having an HLB value greater than 1.0 and less than or equal to 7.0, preferably in the range from 3-6.

Particularly preferred antiperspirant compositions according to the invention comprise at least one water-in-oil emulsifier having an HLB value greater than 1.0 and less than or equal to 7.0, preferably in the range from 3-6, in a total amount of 1.8-3 Wt .-%, preferably 2-2.8 wt .-% and particularly preferably 2.4-2.6 wt .-%, each based on the total weight of the composition according to the invention.

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

Further preferred antiperspirant compositions according to the invention are in the form of an oil-in-water emulsion and comprise at least one water-in-oil emulsifier having an HLB value of greater than 1.0 and less than or equal to 7.0, preferably in the range from 3 to 3. 6, in a total amount of 1.8-3 wt .-%, preferably 2-2.8 wt .-% and particularly preferably 2.4-2.6 wt .-%, each based on the total weight of the composition according to the invention.

Further preferred antiperspirant compositions according to the invention are in the form of an oil-in-water emulsion and comprise at least one nonionic water-in-oil emulsifier having an HLB value in the range from 3-6, selected from steareth-2, steareth-3, Steareth-4, ceteth-2, ceteth-3, ceteth-4, myristeth-2, myristeth-3, myristeth-4, laureth-2, laureth-3, laureth-4, trideceth-2, trideceth-3 and trideceth- 4 and mixtures thereof, in a total amount of 1.8-3 wt .-%, preferably 2-2.8 wt .-% and particularly preferably 2.4-2.6 wt .-%, each based on the total weight of composition according to the invention.

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

In the case of cosmetic oils, a distinction is made between volatile and non-volatile oils. Non-volatile oils are understood as meaning oils having a vapor pressure of less than 2.66 Pa (0.02 mm Hg) at 20 ° C and an ambient pressure of 1013 hPa. Volatile oils are understood to mean those oils which, at 20 ° C. and an ambient pressure of 1013 hPa, have a vapor pressure of 2.66 Pa-40 000 Pa (0.02 mm-300 mm Hg), preferably 13-12000 Pa (0.1- 90 mm Hg), more preferably 15-3000 Pa, most preferably 30-500 Pa.

Non-volatile non-silicone oils which are particularly preferred according to the invention are selected from the adducts of at least 6 ethylene oxide and / or propylene oxide units with mono- or polyhydric C _3-22 -alkanols, such as butanol, butanediol, myristyl alcohol and stearyl alcohol, eg. PPG-13 butyl ether, PPG 14-butyl ether, PPG-9-butyl ether, PPG-10-butanediol, PPG-15 stearyl ether and mixtures thereof.

Particularly preferred compositions according to the invention comprise at least one cosmetic oil selected from PPG-13-butyl ether, PPG-14-butyl ether, PPG-9-butyl ether, PPG-10-butanediol, PPG-15 stearyl ether and mixtures thereof, in a total amount of 0 , 1-15 wt .-%, particularly preferably 0.3-10 wt .-%, most preferably 0.5-6 wt .-%, based on the weight of the total antiperspirant composition according to the invention. Extremely preferred compositions according to the invention contain from 0.1 to 15% by weight, more preferably from 0.3 to 10% by weight, most preferably from 0.5 to 6% by weight of PPG-15 stearyl ether, by weight the entire antiperspirant composition of the invention.

Further non-volatile non-silicone oils which are particularly preferred according to the invention are esters of linear or branched saturated or unsaturated fatty alcohols having 2-30 carbon atoms with linear or branched saturated or unsaturated fatty acids having 2-30 carbon atoms which may be hydroxylated. Preferred are esters of the linear or branched saturated fatty alcohols having 2-5 carbon atoms with linear or branched saturated or unsaturated fatty acids having 10-18 carbon atoms, which may be hydroxylated. Preferred examples thereof are isopropyl palmitate, isopropyl stearate, isopropyl myristate, 2-hexyldecyl stearate, 2-hexyldecyl laurate, isononyl isononanoate, 2-ethylhexyl palmitate and 2-ethylhexyl stearate. Also preferred are isooctyl stearate, isononyl stearate, isocetyl stearate, isononyl isononanoate, isotridecyl isononanoate, cetearyl isononanoate, 2-ethylhexyl laurate, 2-ethylhexyl isostearate, 2-ethylhexyl cocoate, 2-octyl dodecyl palmitate, butyloctanoic acid 2-butyl octanoate, diisotridecyl acetate, n-hexyl laurate, n-decyl oleate, oleyl oleate, oleyl erucate , Erucyl oleate, C ₁₂ -C ₁₅ -alkyllactate and di-C ₁₂ -C ₁₃ -alkyl malate and the benzoic acid esters of linear or branched C _8-22 -alkanols. Particularly preferred are benzoic acid C ₁₂ -C ₁₅ alkyl esters, for. B. available as a commercial product Finsolv ^® TN (C ₁₂ -C ₁₅ alkyl benzoate), and isostearyl benzoate, z. As available as Finsolv ^® SB, 2-ethylhexyl, z. B. available as Finsolv ^® EB, and benzoic acid 2-octyldodecylester, z. As available as Finsolv ^® BOD. Another particularly preferred ester oil is triethyl citrate.

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

The term "triglyceride" used hereinafter means "glycerol triester". Further preferred nonvolatile oils according to the invention are selected from the triglycerides of linear or branched, saturated or unsaturated, optionally hydroxylated C _8-30 -fatty acids, provided that they are liquid under normal conditions. Particularly suitable may be the use of natural oils, for example soybean oil, cottonseed oil, sunflower oil, palm oil, palm kernel oil, linseed oil, almond oil, castor oil, corn oil, rapeseed oil, olive oil, sesame oil, thistle oil, wheat germ oil, peach kernel oil and the liquid portions of coconut oil and the like. Particularly preferred are synthetic triglyceride oils, in particular Capric / Caprylic triglycerides, z. As the commercial products Myritol ^® 318 or Myritol ^® 331 (BASF / Cognis) with unbranched fatty acid residues and glyceryl triisostearin and glyceryl tri (2-ethylhexanoate) with branched fatty acid residues. Such triglyceride oils preferably account for less than 50% by weight of the total weight of all cosmetic oils in the composition of the invention.

Further non-volatile non-silicone oils which are particularly preferred according to the invention are selected from the dicarboxylic acid esters of linear or branched C ₂ -C ₁₀ -alkanols, in particular diisopropyl adipate, di-n-butyl adipate, di- (2-ethylhexyl) adipate, dioctyl adipate, diethyl / di-n- butyl / dioctyl sebacate, diisopropyl sebacate, dioctyl malate, dioctyl maleate, dicaprylyl maleate, diisooctyl succinate, di-2-ethylhexyl succinate and di- (2-hexyldecyl) succinate.

Further inventively particularly preferred non-volatile non-silicone oils are selected from the addition products of 1 to 5 propylene oxide units of mono- or polyhydric C _8-22 alkanols such as octanol, decanol, lauryl alcohol, myristyl alcohol and stearyl alcohol, preferably from PPG-2-myristyl ether and PPG-3 myristyl ether.

Further non-volatile non-silicone oils which are particularly preferred according to the invention are selected from the symmetrical, unsymmetrical or cyclic esters of carbonic acid with C ₆ -C ₂₀ -alcohols, eg. As di-n-caprylylcarbonat (Cetiol ^® CC) or di- (2-ethylhexyl) carbonate (Tegosoft DEC). Carbonic acid esters with C ₁ -C ₅ -alcohols, e.g. As glycerol carbonate or propylene carbonate, however, are not suitable as a cosmetic oil compounds.

Further oils which may be preferred according to the invention are selected from the esters of dimers of unsaturated C ₁₂ -C ₂₂ -fatty acids (dimer fatty acids) with monovalent linear, branched or cyclic C ₂ -C ₁₈ -alkanols or with polyvalent linear or branched C ₂ - C ₆ alkanols.

The total weight of dimer fatty acid esters is particularly preferably 0.5-10% by weight, preferably 1-5 wt .-%, each based on the total composition.

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

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

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

Further preferred volatile silicone oils are selected from volatile linear silicone oils, in particular volatile linear silicone oils having 2-10 siloxane units, such as hexamethyldisiloxane (L ₂ ), octamethyltrisiloxane (L ₃ ), decamethyltetrasiloxane (L ₄ ), as described e.g. B. in the commercial products DC 2-1184, Dow Corning ^® 200 (0.65 cSt), and Dow Corning ^® 200 (1.5 cSt) from Dow Corning are contained, and low molecular weight phenyl trimethicone having a vapor pressure at 20 ° C of about 2000 Pa as available, for example, from GE Bayer Silicones / Momentive under the name Baysilone Fluid PD 5.

Preferred antiperspirant compositions of the present invention contain at least one volatile non-silicone oil because of the drier skin feel and faster drug release.

Preferred volatile non-silicone oils are selected from C ₈ -C ₁₆ isoparaffins, especially isononane, isodecane, isoundecane, isododecane, isotridecane, isotetradecane, isopentadecane, and isohexadecane, and mixtures thereof. Preference is given to C ₁₀ -C ₁₃ isoparaffin mixtures, in particular those having a vapor pressure at 20 ° C. of 10-400 Pa, preferably 13-100 Pa.

Further preferred antiperspirant compositions according to the invention in the form of oil-in-water emulsions are characterized in that the at least one propylene glycol monoester of branched saturated C ₆ -C ₃₀ -alkanecarboxylic acids is selected from propylene glycol monoisostearate, propylene glycol monoisopalmitate, propylene glycol monoiso-behenate, propylene glycol monoisoarachinate, propylene glycol monoisomyristate, propylene glycol monoisocaprate, Propylene glycol monoisocaprinate and propylene glycol monoisocaprylate and mixtures thereof. Further preferred antiperspirant compositions according to the invention in the form of oil-in-water emulsions are characterized in that the at least one branched saturated C ₁₀ -C ₃₀ -alkanol is selected from isostearyl alcohol, isocetyl alcohol, isomyristyl alcohol, isotridecyl alcohol, isoarachidyl alcohol, isobehenyl alcohol, isocapryl alcohol, Isocaprinyl alcohol, isocaprylyl alcohol, and mixtures thereof.

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

Further preferred antiperspirant compositions according to the invention in the form of oil-in-water emulsions are characterized in that at least one nonionic emulsifier having an HLB value in the range of 3-6 in a total amount of 1.8-3 wt .-% and at least one nonionic emulsifier having an HLB value in the range of 12-18 in a total amount of 1-2 wt .-%, wherein the amounts are in each case based on the total weight of the composition according to the invention.

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

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

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

Very particularly preferred compositions according to the invention are characterized in that they contain at least one cosmetic oil and at least one oil-in-water emulsifier with an HLB value of more than 7 to 20 and as an oil-in-water emulsion which does not contain a microemulsion represents present.

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 20070274928 A1 [0021]
• WO 2007/022651 [0021]

Cited non-patent literature

• ASTM D 36 [0015]
• ASTM D 36 [0025]
• Kirk-Othmer, "Encyclopedia of Chemical Technology", 3rd Ed., 1979, Vol. 8, pp. 913-916 [0075]
• Kirk-Othmer, "Encyclopedia of Chemical Technology" 3rd ed., 1979, Vol. 8, page 913 [0093]

Claims (13)

Particles containing, in each case based on the particle weight, 30-90 wt .-% of at least one partially crystalline polymer having C ₈ -C ₃₀ alkyl side chains and 10-70 wt .-% of one or more cosmetic active ingredients selected from fragrances, cooling agents and perfume-cooling agent mixtures. Particles according to Claim 1, characterized by a number-average particle diameter in the range from 50 nm to 100 μm, preferably 100 nm to 80 μm, more preferably 500 nm to 50 μm, exceptionally preferably 1 μm to 30 μm. Particles according to one of claims 1 or 2, characterized in that the at least one semicrystalline polymer having C ₈ -C ₃₀ -alkyl side chains is selected from partially crystalline polymers having C ₈ -C ₃₀ -alkyl side chains having a melting point in the range of 30-75 ° C, preferably 35-60 ° C, more preferably 40-55 ° C, most preferably 40-48 ° C, measured according to ASTM D 36th Particles according to one of claims 1 to 3, characterized in that the total amount of at least one partially crystalline polymer having C ₈ -C ₃₀ -alkyl side chains 50-75 wt .-% and the total amount of at least one cosmetic active ingredient selected from fragrances, Cooling agents and perfume-cooling agent mixtures, 25-50 wt .-%, in each case based on the particle weight. Particles according to one of claims 1 to 4, characterized by a melting point in the range of 25-40 ° C, preferably 26-35 ° C, more preferably 27-33 ° C, most preferably 29-31 ° C, measured according to ASTM D 36th , Particles according to one of claims 1 to 5, characterized in that the partially crystalline polymer having C ₈ -C ₃₀ -alkyl side chains is selected from acrylic acid esters of C ₈ -C ₃₀ -alkanols, which may be linear or branched. An antiperspirant composition for roll-on application comprising the four components below: a) water, b) at least one deodorant or antiperspirant active, c) at least one polymer selected from polysaccharides, their esters and / or ethers and mixtures thereof, d) 0.01-10 wt .-%, based on the weight of the cosmetic composition, of one or more particles according to claim 1, 2, 3, 4, 5 or 6. Composition according to Claim 7, characterized in that it comprises the at least one polymer selected from polysaccharides, their esters and / or ethers and mixtures thereof, in a total amount of 0.05-1% by weight, preferably 0.1- 0.7 wt .-%, particularly preferably 0.1-0.3 wt .-%, each based on the total weight of the composition contains. Composition according to Claim 7 or 8, characterized in that it contains 0.1-0.8% by weight, based on the total weight of the composition, of dehydroxanthan gum and 0.1 to 0.7% by weight of hydroxyethylcellulose. Composition according to any one of Claims 7 to 9, characterized in that it comprises at least one oil-in-water emulsifier having an HLB value of greater than 7 to 20, preferably at least one nonionic oil-in-water emulsifier having an HLB value from greater than 7 to 20. A composition according to any one of claims 7 to 10, characterized in that it contains at least one water-in-oil emulsifier having an HLB value greater than 1.0 and less than or equal to 7.0, preferably in the range of 3-6. Composition according to any one of Claims 7 to 11, characterized in that it contains at least one cosmetic oil, preferably in a total amount of 0.1-15% by weight, more preferably 0.3-10% by weight, most preferably 0, 5-6 wt .-%, each based on the weight of the total antiperspirant composition of the invention contains. Composition according to any one of Claims 7 to 12, characterized in that it contains at least one cosmetic oil and at least one oil-in-water emulsifier having an HLB of more than 7 to 20, and as an oil-in-water emulsion, which is not a microemulsion is present.