RU2780567C2 - Anhydrous composition containing magnesium salt - Google Patents

Abstract

FIELD: chemistry; cosmetology.

SUBSTANCE: object 1 is an anhydrous deodorizing composition in the form of an aerosol composition or in the form of a stick, containing from 0.3 to 5 wt.% of active substance selected from magnesium salt(s), magnesium oxide, and magnesium hydroxide, or mixtures thereof, when the composition is in the form of aerosol, or from 5 to 25 wt.% of active substance, when the composition is in the form of a stick, per the total weight of the composition; from 1 to 30 wt.% per the total weight of the composition of at least one vegetable oil based on hydrocarbon; from 1 to 30 wt.% per the total weight of the composition of at least one composite ester of fatty acid, selected from isopropyl palmitate, isopropyl myristate, isononyl izonanoate, and C12-C15 alkyl benzoate, and mixtures thereof. Object 2 is a method for cosmetic body care for elimination of a smell related to human sweating, including a stage of the application of a composition to the skin surface.

EFFECT: reduction in the formation of white traces by a deodorizing composition, which does not require the presence of aluminum salts.

21 cl, 5 tbl, 5 ex

Description

The present invention relates to the field of compositions, in particular cosmetic compositions, preferably deodorant compositions.

More specifically, the invention relates to the field of skin care, in particular the skin of the body, and cleaning.

The present invention also relates to a cosmetic skin care method as well as a cosmetic body care method for eliminating odor associated with human perspiration, in particular armpit odor, and optionally perspiration in a human.

In order to reduce or even eliminate body odor, in particular generally unpleasant odor in the armpits, it is known in the field of cosmetics to practice topically applied deodorants containing antiperspirant-type or deodorant-type active substances.

Exocrine or apocrine sweat usually has little odor when secreted. Compounds with an unpleasant odor are formed as a result of its decomposition by bacteria through enzymatic reactions. Thus, deodorizing active agents have the function of reducing or preventing the formation of unpleasant odors. This object can in particular be achieved by deodorant and/or antiperspirant activity.

The various systems proposed so far can be divided into major groups.

The first group refers to odor absorbers. These scavengers "trap" odorous compounds or reduce their volatility.

Also known bactericidal substances, which preferably have a selectivity to the strains responsible for odors, or limit the growth of bacteria. Among the bactericidal substances that destroy the resident bacterial flora, triclosan (2,4,4'-trichloro-2'-hydroxydiphenyl ether) is most widely used. Among substances that reduce the growth of bacteria, agents that form complexes with transition metals, such as ethylenediaminetetraacetic acid (EDTA) or diethylenetriaminepentaacetic acid (DPTA), can be mentioned.

Also known are substances that block enzymatic reactions responsible for the formation of odorous compounds, in particular inhibitors of arylsulfatase, 5-lipoxygenase, aminoacylase or β-glucuronidase.

Deodorizing activity can also be achieved by neutralizing volatile compounds responsible for odour.

Finally, aluminum and/or zirconium salts are also used as antibacterial agents. These salts play a direct role in deodorizing effectiveness by reducing the bacteria responsible for sweat dehydration.

However, these various treatments applied to the underarm skin tend to cause adverse changes in the skin.

Deodorants are usually commercially available in the form of roll-ons, tubes, sticks, aerosols or sprays.

The most effective formulations for odor control are alcohol-based formulations. However, they have the disadvantage that they cause discomfort at the time of application, in particular after shaving the armpit.

The disadvantage of emulsions is that they moisturize the skin and are difficult to dry in the armpit.

Waterless sticks and aerosols are fatty formulations that leave a greasy feel in the armpit, and some are prone to transfer to clothing, leaving visible and unaesthetic marks.

In order to overcome, in particular, the problem of traces, deodorant compositions have been developed containing oils with a refractive index close to that of aluminum salts. The role of such oils is to reduce the whitish appearance of antiperspirant compositions when they are applied to the skin and hence to reduce the white color of marks on clothing.

However, such deodorant compositions have the disadvantage that they cause an unpleasant oily feeling on the skin, in particular on the underarm skin, and do not allow to limit the transfer of deodorant products from the skin to clothing.

Thus, there continues to be a need to find new methods of body care that do not have the disadvantages described above to eliminate the smell associated with human perspiration, in particular, the smell in the armpits. At present, care methods are particularly desirable in which the use of aluminum salts and/or aluminum and zirconium complexes can be avoided.

It is the object of the present invention, in particular, to meet these expectations.

More specifically, the invention relates to the creation of new deodorant compositions that do not require the presence of aluminum salts and have similar proven effectiveness.

The purpose of the present invention is to meet these needs.

Thus, according to a first aspect, the present invention relates to an anhydrous composition, in particular a cosmetic composition, in particular in the form of an aerosol or stick, comprising:

- at least 0.3 wt.% active substance from salt(s) of magnesium, based on the total weight of the composition;

- at least one hydrocarbon-based vegetable oil; and

- at least one fatty acid ester.

Contrary to all expectations, the inventors have found that the combination of a magnesium salt, a hydrocarbon-based vegetable oil and a fatty acid ester makes it possible to limit the formation of unpleasant odors in the armpits. In addition, compositions according to the invention may provide the benefit of reducing stickiness and forming a dry, non-greasy layer.

In addition, the present invention provides compositions which, compared to already known compositions, are transferred to textiles to a lesser extent, thereby forming less visible and unaesthetic marks on clothes, especially on dark-colored clothes.

Thus, the compositions, in particular cosmetic compositions, according to the invention have good transfer stability as well as deodorizing properties.

According to a preferred embodiment, the composition according to the invention is in the form of an aerosol or stick.

According to a first preferred aspect, the composition according to the invention is in the form of an aerosol.

According to a second preferred aspect, the composition according to the invention is in the form of a stick.

According to a preferred embodiment, the present invention relates to an anhydrous composition, in particular a cosmetic composition, comprising:

- at least 0.3 wt.% active substance from salt(s) of magnesium, based on the total weight of the composition;

- at least coconut oil; and

- at least one fatty acid ester.

According to another preferred embodiment, the present invention relates to an anhydrous composition, in particular a cosmetic composition, comprising:

- at least 0.3 wt.% active substance from salt(s) of magnesium, based on the total weight of the composition;

- at least one hydrocarbon-based vegetable oil; and

- at least isopropyl palmitate.

According to another preferred embodiment, the present invention relates to an anhydrous composition, in particular a cosmetic composition, comprising:

- at least 0.3 wt.% active substance from salt(s) of magnesium, based on the total weight of the composition;

- at least coconut oil; and

- at least isopropyl palmitate.

According to another preferred embodiment, the present invention relates to an anhydrous composition, in particular a cosmetic composition, comprising:

- at least 0.3 wt.% active substance from salt(s) of magnesium, based on the total weight of the composition;

- at least one hydrocarbon-based vegetable oil; and

- at least one fatty acid ester selected from isopropyl palmitate, isopropyl myristate, isononyl isonanoate and C ₁₂ -C ₁₅ alkyl benzoate, and mixtures thereof.

In accordance with another preferred embodiment, the present invention relates to a composition in anhydrous aerosol form, containing:

- at least 0.3 wt.% active substance from salt(s) of magnesium, based on the total weight of the composition;

- at least one hydrocarbon-based vegetable oil; and

- at least one fatty acid ester.

In addition, the present invention, in accordance with other aspects thereof, relates to a cosmetic body care method for eliminating odor associated with human perspiration, in particular armpit odor, and optionally perspiration in a human, comprising the step of applying a composition as defined above, to the surface of the skin.

The method according to the invention is particularly advantageous for eliminating body odor associated with underarm perspiration, since the composition used does not create an unpleasant greasy feeling and is less transferred to clothing.

Compositions, in particular cosmetic compositions, according to the invention contain a physiologically acceptable medium.

For the purposes of the present invention, the term "physiologically acceptable environment" is intended to mean an environment suitable for applying the composition to the skin.

The physiologically acceptable medium has essentially no unpleasant odor or appearance and is fully compatible with topical application to the skin. In the present case, where the composition is intended to be applied to the surface of the skin, such a medium is considered physiologically acceptable if it does not cause unacceptable burning, tightening or redness for the user.

In particular, the composition is suitable for application to the surface of the skin. Thus, a physiologically acceptable medium is preferably a cosmetically or dermatologically acceptable medium, i.e. one that does not have an unpleasant odour, color or appearance and does not cause any unacceptable burning, tightening or redness.

Thus, the composition may contain any component commonly used in the application in question.

Of course, those skilled in the art will choose this or these optional additional compound(s) and/or the amount thereof (their) so that their addition does not or substantially does not have an undesirable effect on advantageous properties of the compounds of the invention.

For the purposes of the present invention, the term "anhydrous" refers to a composition having a water content of less than 5 wt.%, in particular less than 2 wt.%, preferably less than 1 wt.% or even less than 0.5 wt.%, based on the total weight of the composition . Even more preferably, the composition according to the invention does not contain water at all.

It should be noted that the water that may be present is more specifically bound water, such as water of crystallization in salts, or trace amounts of water taken up by the starting materials used in the preparation of the compositions of the invention.

Other characteristics, aspects and advantages of the invention will become apparent upon reading the following detailed description.

Magnesium salts

The composition according to the invention contains at least 0.3 wt.% active substance from at least one magnesium salt, based on the total weight of the composition. The value of 0.3%, based on the total weight of the composition, is meant to include the gas present in the case of an aerosol, i.e., is at least 2%, based on the oil composition.

The magnesium salt is selected in particular from magnesium oxide, magnesium carbonate, magnesium hydroxide, magnesium bicarbonate, magnesium chloride, magnesium sulfate, magnesium acetate, magnesium pidolate, magnesium gluconate, magnesium glutamate, magnesium heptagluconate, magnesium ketogluconate, magnesium lactate, magnesium ascorbate, magnesium citrate, magnesium aspartate, magnesium pantothenate, magnesium sorbate, magnesium nitrate, magnesium lactate gluconate, magnesium fulvate and mixtures thereof.

More specifically, magnesium oxide, magnesium carbonate, magnesium hydroxide or magnesium bicarbonate can be used, and even more preferably magnesium oxide.

According to the first embodiment, in the case of an anhydrous aerosol form of the composition according to the invention, the content of magnesium salts is from 0.3 to 5 wt.%, preferably from 0.5 to 2 wt.% of the active substance, based on the total weight of the composition.

In particular, in the case of an aerosol form of the composition according to the invention, the proportion of magnesium salts based on the total weight of the composition (excluding gas) is preferably from 2 to 30 wt.%, preferably from 3 to 15 wt.%.

According to the first embodiment, if the composition according to the invention is in the form of a stick, the content of magnesium salts is at least 5 wt.%, preferably from 5 to 25 wt.%, preferably from 10 to 20 wt.% of the active substance in based on the total weight of the composition.

In particular, the proportion of magnesium salts, based on the total amount of oils in the composition according to the invention, in particular in the form of a stick or aerosol, in particular, is from 5 to 30 wt.% and preferably from 10 to 25 wt.%.

Vegetable oil based on hydrocarbons

The composition according to the invention, in particular in the form of a stick or aerosol, contains at least one hydrocarbon-based vegetable oil.

In addition to the properties imparted to the composition according to the invention, such an oil makes it possible to reduce white marks that may remain after application of the deodorant and/or antiperspirant composition.

The hydrocarbon-based vegetable oil is particularly selected from liquid triglycerides of fatty acids having from 4 to 24 carbon atoms, for example triglycerides of heptanoic or octanoic acid, or wheat germ oil, olive oil, sweet almond oil, palm oil, rapeseed oil, coconut oil, cottonseed oil, alfalfa oil, poppy seed oil, pumpkin seed oil, squash oil, blackcurrant oil, evening primrose oil, millet seed oil, barley oil, quinoa oil, rye oil, safflower oil, candle tree oil, passionflower oil, oil musk rose, sunflower oil, corn oil, soybean oil, grape seed oil, sesame oil, hazelnut oil, apricot oil, macadamia nut oil, castor oil, avocado oil, caprylic/capric acid triglycerides, such as those sold by Stéarineries Dubois or sold under the names Miglyol (Miglyol) 810, 812 and 818 by Dynamit Nobel, oils jojoba and shea butter.

In particular, hydrocarbon-based vegetable oils can be mentioned, including:

- coconut oil obtained in particular from Cocos nucifera, having a mass per unit volume of 0.907 to 0.909 g.cm ^-3 , a saponification number of 255 to 267 and an iodine value of 5 to 9;

- babassu nut oil (from kernels), obtained in particular from palm, having a mass per unit volume of 0.914 to 0.917 g.cm ^-3 , a saponification number of 245 to 256 and an iodine value of 10 to 18;

- palm kernel oil, obtained in particular from Elaeis guineensis, having a mass per unit volume of 0.903 to 0.908 g.cm ^-3 , a saponification number of 246 to 254 and an iodine value of 12 to 19;

- cocoa butter, obtained in particular from Theobroma cacao, having a mass per unit volume of 0.906 to 0.909 g.cm ^-3 , a saponification number of 192 to 200 and an iodine value of 33 to 40;

- palm oil (from the pulp of the fruit), obtained in particular from Elaeis guineensis, having a mass per unit volume from 0.897 to 0.900 g.cm ^-3 , a saponification number from 195 to 205 and an iodine value from 45 to 48;

- baobab seed oil, obtained in particular from Adansonia grandideris, having a mass per unit volume of 0.895 to 0.905 g.cm ^-3 , a saponification number of 190 to 195 and an iodine value of 57 to 63;

shea butter obtained in particular from Sapotacea multiflora, having a mass per unit volume of 0.900 to 0.902 g.cm ^-3 , a saponification number of 178 to 193 and an iodine value of 52 to 66;

- Bassia nut oil, obtained in particular from Skorea stenoptera, having a mass per unit volume of 0.902 to 0.905 g.cm ^-3 , a saponification number of 190 to 194 and an iodine value of 58 to 65;

- olive oil (from the pulp of the fruit and stones), obtained, in particular, from Olea europea, having a mass per unit volume from 0.910 to 0.916 g cm ^-3 , a saponification number from 182 to 196 and an iodine value from 75 to 94;

- peanut oil, obtained in particular from Arachis hypogea, having a mass per unit volume of 0.914 to 0.917 gcm ^-3 , a saponification number of 187 to 196 and an iodine value of 80 to 106;

- almond oil obtained, in particular, from Prunus amygdalis, having a mass per unit volume from 0.911 to 0.917 g.cm ^-3 , a saponification number from 189 to 196 and an iodine value from 95 to 103;

- hazelnut oil, obtained in particular from Corylu avelana, having a mass per unit volume of 0.914 to 0.920 g.cm ^-3 , a saponification number of 190 to 195 and an iodine value of 83 to 110;

- rapeseed oil obtained in particular from Brassica napus, having a mass per unit volume of 0.910 to 0.920 g.cm ^-3 , a saponification number of 168 to 181 and an iodine value of 94 to 120;

- rice bran oil, obtained in particular from Oriza sativa, having a mass per unit volume of 0.920 to 0.924 gcm ^-3 , a saponification number of 180 to 194 and an iodine value of 85 to 109.

In particular, the composition according to the invention contains from 0.5 to 30 wt.% vegetable (s) hydrocarbon-based oil (s), preferably from 1 to 20 wt.% and even more preferably from 1 to 15 wt.% vegetable ( th) hydrocarbon-based oils (oils), based on the total weight of the composition.

According to a preferred embodiment, the hydrocarbon-based vegetable oil is selected from castor oil, almond oil, and coconut oil, and mixtures thereof.

Preferably, the hydrocarbon-based vegetable oil is coconut oil.

Coconut oil is a mixture of various acids and specifically caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, and trans fatty acids.

In particular, the proportion of hydrocarbon-based vegetable oil(s) based on the total amount of oils is from 10 to 90 wt.%, preferably from 10 to 50 wt.%, and even more preferably from 10 to 35 wt.% .

In case the composition is in the form of a stick, the proportion of hydrocarbon-based vegetable oil(s) based on the total amount of oils is in particular 10 to 40% by weight and preferably 15 to 35% by weight .

In case the composition is in the form of an aerosol, the proportion of hydrocarbon-based vegetable oil(s) based on the total amount of oils is in particular 5 to 50% by weight and preferably 10 to 35% by weight .

Esters of fatty acids

The composition according to the invention, in particular in the form of a stick or aerosol, contains at least one fatty acid ester.

In particular, mention may be made of fatty acid esters, including synthetic fatty acid esters, for example oils of the formula R ₁ COOR ₂ , where R ₁ is a linear or branched chain higher fatty acid residue containing from 1 to 40 carbon atoms, and R ₂ is a hydrocarbon chain, in particular, a branched chain containing from 1 to 40 carbon atoms, while the sum of R ₁ and R ₂ is at least 10, for example, purcellin oil (cetostearyloctanoate), isononyl isononanoate, isopropyl myristate, isopropyl palmitate, C ₁₂ - C ₁₅ alkyl benzoate, hexyl laurate, diisopropyl adipate, 2-ethylhexyl palmitate, 2-octyl dodecyl stearate, 2-octyl dodecyl erucate, isostearyl isostearate, or tridecyl trimellitate; octanoates, decanoates or ricilloleates of monohydric or polyhydric alcohols, for example propylene glycol dioctanoate; hydroxylated esters, for example isostearyl lactate, octylhydroxystearate, octyldodecylhydroxystearate, diisostearyl malate, triisocetylcitrate, and heptanoates, octanoates or decanoates of fatty alcohols; esters of polyhydric alcohols, for example propylene glycol dioctanoate, neopentyl glycol diheptanoate or diethylene glycol diisononanoate; and esters of pentaerythritol, for example pentaerythrityl tetraisostearate.

Preferably the fatty acid ester is selected from isopropyl palmitate, isopropyl myristate, isononyl isonanoate and C ₁₂ -C ₁₅ alkyl benzoate, and mixtures thereof.

More preferably, fatty acid esters such as isopropyl palmitate and isopropyl myristate and mixtures thereof are selected, and even more preferably isopropyl palmitate.

In particular, the composition according to the invention, in particular in the form of a stick or aerosol, contains from 1 to 30 wt.% complex (s) ester (s) fatty acid (s), preferably from 2 to 20 wt. .% complex (s) ester (s) fatty (s) acid (s) and even more preferably from 3 to 15 wt.% complex (s) ester (s) fatty (s) acid (s) ) based on the total weight of the composition.

In particular, the proportion of fatty acid ester(s) based on total oils is preferably 10 to 90% by mass, more preferably 20 to 80% by mass, preferably from 30 to 60 wt.%.

Oil phase

The composition according to the invention, in particular in the form of a stick or spray, comprises an oil phase comprising at least one hydrocarbon-based vegetable oil, a fatty acid ester and optionally one or more oils other than a hydrocarbon-based vegetable oil and a fatty acid ester. acids.

The term "oil" means a fatty substance that is liquid at room temperature (25 °C) and atmospheric pressure (760 mm Hg, i.e. 10 ⁵ Pa).

flying oil

The composition according to the invention, in the case of a composition in aerosol form, may preferably contain at least one volatile oil.

For the purposes of the invention, the term "volatile oil" means an oil capable of volatilization upon contact with the skin or keratin fiber in less than an hour at room temperature and atmospheric pressure.

Volatile oils according to the invention are volatile cosmetic oils that are liquid at room temperature, have a non-zero saturation vapor pressure at room temperature and atmospheric pressure, in particular from 0.13 Pa to 40,000 Pa (from 10 ^-3 to 300 mm Hg), in particular from 1.3 Pa to 13,000 Pa (from 0.01 to 100 mm Hg), and more specifically from 1.3 Pa to 1300 Pa (from 0.01 to 10 mm Hg. Art.).

Preferably the volatile oil is selected from hydrocarbon-based volatile oils and silicone volatile oils, and mixtures thereof.

As examples of hydrocarbon-based volatile oils that can be used in the invention, mention may be made of hydrocarbon-based volatile oils selected from hydrocarbon-based volatile oils containing from 8 to 16 carbon atoms, and in particular C ₈ -C ₁₆ isoalkanes. derived from petroleum (also known as isoparaffins), such as isododecane (also known as 2,2,4,4,6-pentamethylheptane), isodecan, or isohexadecane, such as oils sold under the trademarks Isopar or Permethyl, branched C ₈ –C ₁₆ esters, isohexyl neopentanoate and mixtures thereof.

Other hydrocarbon-based volatile oils may also be used, such as petroleum distillates, such as those sold under the Shell Solt trademark by Shell, as well as linear volatile alkanes, such as those described in Cognis patent application DE10 2008 012 457.

As examples of volatile silicone oils that can be used in the invention, mention may be made of:

- volatile linear or cyclic silicone oils, in particular with a viscosity of not more than 8 centistokes (8×10 ^-6 m ² /s), and in particular containing from 2 to 7 silicon atoms, optionally containing alkyl groups or alkoxy groups containing from 1 up to 10 carbon atoms. Of the volatile silicone oils that can be used in the invention, mention may be made in particular of octamethyltetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane and dodecamethylpentasiloxane.

- volatile linear alkyl trisiloxane oils of general formula (I):

where R represents an alkyl group containing from 2 to 4 carbon atoms, one or more of whose hydrogen atoms may be replaced by a fluorine or chlorine atom.

Mention may also be made of the following oils of general formula (I):

- 3-butyl-1,1,1,3,5,5,5-heptamethyltrisiloxane,

- 3-propyl-1,1,1,3,5,5,5-heptamethyltrisiloxane and

- 3-ethyl-1,1,1,3,5,5,5-heptamethyltrisiloxane,

corresponding to oils of formula (I), where R respectively represents a butyl group, a propyl group or an ethyl group.

In case the composition is in the form of an aerosol, the proportion of volatile oil(s) based on the total amount of oils is preferably 10 to 90% by weight and preferably 15 to 85% by weight.

Preferably the volatile oils are selected from hydrocarbon-based oils and more particularly C ₈ -C ₁₆ isoalkanes such as isododecane or isohexadecane or linear C ₈ -C ₁₆ alkanes such as undecane/tridecane.

Even more specifically, isododecane may be selected.

In case the composition according to the invention is in the form of an anhydrous aerosol, the proportion of volatile oil(s) based on the total amount of oils is preferably 20 to 80% by weight.

fixed oil

The composition according to the invention, in particular in the form of a stick or aerosol, may also contain at least one fixed oil, other than the fatty acid ester(s) and the vegetable oil(s). hydrocarbon-based oils(s) already present in the composition.

The term "fixed oil" means an oil which remains on the skin or keratin fiber at room temperature and atmospheric pressure for at least several hours and which in particular has a saturation vapor pressure strictly less than 10 ^-3 mm Hg. Art. (0.13 Pa).

The fixed oil may be selected from hydrocarbon-based fixed oils, silicone fixed oils, and fluorine-containing fixed oils, and mixtures thereof.

The term "hydrocarbon-based oil" means an oil primarily containing carbon and hydrogen atoms and optionally one or more functional groups selected from hydroxyl, ester, ether and carboxyl functional groups. Typically, the oil has a viscosity of 0.5 to 100,000 mPa.s, preferably 50 to 50,000 mPa.s, and more preferably 100 to 30,000 mPa.s.

As examples of non-volatile, non-hydrocarbon-based oils that can be used in the invention, mention may be made of:

- linear or branched hydrocarbons of mineral or synthetic origin, such as liquid paraffins and their derivatives, liquid paraffin, polydecenes, polybutenes, hydrogenated polyisobutene such as Parleam ^® or squalane;

- synthetic ethers containing from 10 to 40 carbon atoms, such as dicaprylyl ether or polypropylene glycol-14 butyl ether (PPG-14);

- fatty alcohols which are liquid at room temperature, containing a branched and/or unsaturated carbon chain containing from 12 to 26 carbon atoms, for example octyldodecanol, isostearyl alcohol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol or oleyl alcohol;

- higher fatty acids such as oleic acid, linoleic acid or linolenic acid;

- fatty chain carbonates;

- fatty chain acetates;

fatty chain citrates.

As examples of fixed silicone oils that can be used in the invention, mention may be made of silicone oils such as linear or cyclic fixed polydimethylsiloxanes (PMDS), polydimethylsiloxanes containing alkyl, alkoxy or phenyl groups located on the sides or at the end of the silicone chain, which , in particular, contain from 2 to 24 carbon atoms; and their mixtures.

As examples of non-volatile fluorinated oils that can be used in the invention, mention may be made of fluorinated oils, optionally partially hydrocarbon based and/or silicone based, such as fluorosilicone oils, fluorinated polyethers and fluorosilicones as described in EP 847 752.

Preferably the fixed oils are selected from hydrocarbon based fixed oils and more specifically hydrogenated polyisobutene oils such as ^Parleam® , ethers such as dicaprylyl ether or PPG-14 butyl ether, fatty alcohols such as octyldodecanol, and mixtures thereof.

In the case where the composition according to the invention is in the form of an anhydrous aerosol, the proportion of volatile oil(s) based on the total amount of oils is preferably 10 to 90% by mass and more preferably 15 to 80% by mass.

In particular, when the composition according to the invention is in the form of a stick, it contains 100% by weight of non-volatile oil(s), based on the total amount of oils.

solid fatty substances

In accordance with a particular embodiment of the invention, when the composition is in the form of a stick, it may contain at least one solid fatty substance, preferably selected from waxes and pasty fatty substances and mixtures thereof, and more specifically waxes.

Pasty fatty substance

For the purposes of the present invention, the term "pasty fatty substance" (also known as "pasty compound" or "paste") means a lipophilic fatty compound with a reversible change in state from solid to liquid and vice versa, showing an anisotropic crystalline structure in the solid state and containing a liquid fraction or solid fraction at 23 °C.

In other words, the initial melting point of the pasty compound may be less than 23°C. The liquid fraction of the pasty compound, measured at 23° C., can be from 9 to 97% by weight of the compound. This fraction, which is liquid at 23°C, is preferably 15 to 85% by weight and more preferably 40 to 85% by weight. For the purposes of the invention, the melting temperature corresponds to the temperature of the most endothermic peak observed in thermal analysis (differential scanning calorimetry (DSC)) as described in ISO 11357-3:1999. The melting point of a paste or wax can be measured using a differential scanning calorimeter (DSC), such as the calorimeter sold under the name MDSC 2920 by 45 TA Instruments.

The measurements are carried out according to the following protocol: a 5 mg sample of paste or wax (as the case may be) placed in a crucible is subjected to a first rise in temperature from -20 °C to 100 °C at a heating rate of 10 °C/minute, then cooled from 100 °C to -20 °C at a cooling rate of 10 °C/minute and finally subjected to a second temperature rise from -20 °C to 100 °C at a heating rate of 5 °C/minute. During the second rise in temperature, the change in the difference between the power absorbed by the empty crucible and the crucible containing the paste or wax sample is measured as a function of the temperature change.

The melting point of the compound is the temperature value corresponding to the top of the peak of the curve showing the change in the difference of the absorbed power depending on the temperature.

The liquid mass fraction of the paste compound at 23°C is equal to the ratio of the heat of fusion consumed at 23°C to the heat of fusion of the paste compound.

The heat of fusion of a pasty compound is the heat consumed by the compound to change from a solid state to a liquid state. A pasty compound is considered to be in a solid state when its entire mass is in a solid crystalline form. A pasty compound is considered to be in a liquid state when its entire mass is in liquid form.

The heat of fusion of a pasty compound is equal to the area under the curve of a thermogram obtained with a differential scanning calorimeter (DSC), such as the calorimeter sold under the name MDSC 2920 by TA Instruments, at a temperature rise rate of 5°C or 10°C per minute in accordance with the standard ISO 11357-3:1999. The heat of fusion of a pasty compound is the amount of energy required to effect the transition of the compound from a solid state to a liquid state. It is expressed in J/g. The heat of fusion consumed at 23°C is the amount of energy absorbed by the sample to change its solid state to the state it is at 23°C, formed from a liquid fraction and a solid fraction.

The liquid fraction of the pasty compound, measured at 32° C., is preferably 30 to 100 wt% of the compound, preferably 50 to 100 wt%, and more preferably 60 to 100 wt% of the compound. If the liquid fraction of the paste compound measured at 32°C is 100%, the end temperature of the melting range of the paste compound is less than or equal to 32°C.

The liquid fraction of a pasty compound, measured at 32°C, is equal to the ratio of the heat of fusion consumed at 32°C to the heat of fusion of the pasty compound. The heat of fusion consumed at 32°C is calculated in the same way as the heat of fusion consumed at 23°C.

The pasty compound is preferably selected from synthetic compounds and compounds of vegetable origin. The paste-like compound can be obtained by synthesis from starting materials of plant origin. The pasty compound is preferably selected from:

- lanolin and its derivatives;

- ethers of polyhydric alcohols selected from ethers of pentaerythritol and polyalkene glycol, ethers of fatty alcohol and sugar, and mixtures thereof, ethers of pentaerythritol and polyethylene glycol containing 5 units of oxyethylene (5 OE) (CTFA; Cosmetic Toiletries and Fragrance Association): PEG-5 pentaerythrityl ether), polypropylene glycol pentaerythrityl ether containing 5 hydroxypropylene units (5 OP) (CTFA name: PPG-5 pentaerythrityl ether) and mixtures thereof, and more specifically mixtures of PEG- 5 pentaerythrityl ether, PPG-5 pentaerythrityl ether and soybean oil sold under the name Lanolid (Lanolide) by Vevy, which is a mixture of components in a mass ratio of 46/46/8: 46% PEG-5 pentaerythrityl ether, 46% PPG-5 pentaerythrityl ether and 8% soybean oil;

- polymeric or non-polymeric organosilicon compounds;

- polymeric or non-polymeric fluorine-containing compounds;

- vinyl polymers, in particular homopolymers and copolymers of olefins, homopolymers and copolymers of hydrogenated dienes, linear or branched oligomers, homopolymers or copolymers of alkyl(meth)acrylates preferably containing a C ₈ -C ₃₀ alkyl group, homopolymers and copolymers of vinyl ester oligomers containing C ₈ -C ₃₀ alkyl groups, homopolymer and copolymer oligomers of vinyl ethers containing C ₈ -C ₃₀ alkyl groups;

- fat-soluble polyethers obtained by polyesterification between one or more C ₂ -C ₁₀₀ and preferably C ₂ -C ₅₀ diols;

- esters;

- and/or mixtures thereof.

The pasty compound is preferably a polymer, in particular a hydrocarbon-based polymer.

Among fat-soluble polyesters, copolymers of ethylene oxide and/or propylene oxide with C ₆ -C ₃₀ long chain alkylene oxides are particularly preferred, more preferably those in which the weight ratio of ethylene oxide and/or propylene oxide and alkylene oxides in the copolymer is from 5:95 to 70:30.

Particular mention should be made in this family of copolymers such as long chain alkylene oxides arranged in blocks with an average molecular weight of 1,000 to 10,000, e.g., the polyoxyethylene/polydodecyl glycol block copolymer, e.g. under the trade name Elfacos ST9 by Akzo Nobel.

Among the esters, the following are particularly preferred:

- glycerol oligomer esters, in particular diglycerol esters, in particular condensates of adipic acid and glycerol, in which some of the hydroxyl groups of glycerols have been reacted with a mixture of fatty acids such as stearic acid, capric acid, stearic acid and isostearic acid, and 12-hydroxystearic acid, in particular sold under the tradename Softisan 649 by Sasol;

- arachidyl propionate sold under the trade name Waxenol 801 by Alzo;

- phytosterol esters;

- triglycerides of fatty acids and their derivatives;

- esters of pentaerythritol;

- non-crosslinked polyesters obtained by polycondensation between a linear or branched C ₄ -C ₅₀ dicarboxylic acid or polycarboxylic acid and a C ₂ -C ₅₀ diol or polyhydric alcohol,

- an ester of aliphatic esters obtained by esterification of an ester of an aliphatic hydroxycarboxylic acid with an adiphatic carboxylic acid. Preferably the aliphatic carboxylic acid contains 4 to 30 and preferably 8 to 30 carbon atoms. It is preferably selected from hexanoic acid, heptanoic acid, octanoic acid, 2-ethylhexanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pentadecanoic acid, hexadecanoic acid, hexyldecanoic acid, heptadecanoic acid, ostadecanoic acid. , isostearic acid, nonadecanoic acid, eicosanoic acid, isoarachidonic acid, octyldodecanoic acid, heneicosanoic acid and docosanoic acid, and mixtures thereof. The aliphatic carboxylic acid is preferably branched. The aliphatic hydroxycarboxylic acid ester is preferably derived from a hydroxylated aliphatic carboxylic acid having 2 to 40 carbon atoms, preferably 10 to 34 carbon atoms and even more preferably 12 to 28 carbon atoms and 1 to 20 hydroxyl groups, preferably 1 to 10 hydroxyl groups, and even more preferably 1 to 6 hydroxyl groups.

Aliphatic hydroxycarboxylic acid ester selected from:

a) partial or full esters of saturated linear monohydroxylated aliphatic monocarboxylic acids;

b) partial or full esters of unsaturated monohydroxylated aliphatic monocarboxylic acids;

c) partial or full esters of saturated monohydroxylated aliphatic polycarboxylic acids;

d) partial or full esters of saturated polyhydroxylated aliphatic polycarboxylic acids;

e) partial or complete esters of C ₂ -C ₁₆ aliphatic polyhydric alcohols that have been reacted with a monohydroxylated or polyhydroxylated aliphatic monocarboxylic or polycarboxylic acid, and mixtures thereof;

- esters of a diol dimer and a dicarboxylic acid dimer, esterified, if appropriate, on the free alcohol(s) or acid functional group(s) with acid or alcohol radicals, in particular esters dilinoleate dimer; such esters may in particular be selected from esters having the following nomenclature according to the International Nomenclature of Cosmetic Ingredients (INCI): bis-behenyl/isostearyl/phytosteryl dimerlylinoleyl dilinoleate dimer (Plandool G) , phytosteryl/isostearyl/cetyl/stearyl/behenyl-dimer dilinoleate (Plandool H or Plandool 40 S), and mixtures thereof;

- hydrogenated resinate esters such as hydrogenated resinate dilinoleyl dimers (Lusplan DD-DHR or DD-DHR from Nippon Fine Chemical); and

- their mixtures.

Waxes

According to a preferred embodiment, when the composition according to the invention is in the form of a stick, it is at least one wax.

The wax considered in the context of the present invention is generally a lipophilic compound that is solid at room temperature (25°C) and changes reversibly from a liquid state to a solid, has a melting point greater than or equal to 30°C, which may be up to 200 °C and in particular up to 120 °C. In particular, waxes suitable for use in the invention may have a melting point greater than or equal to 45°C and in particular greater than or equal to 55°C. The waxes that can be used in the compositions according to the invention are selected from waxes of animal, vegetable, mineral or synthetic origin and mixtures thereof, which are solid at room temperature.

Examples that may be mentioned include the following hydrocarbon-based waxes containing a fatty alkyl chain typically having 10 to 60 carbon atoms and preferably 20 to 40 carbon atoms, where said chain may be saturated or unsaturated, substituted or unsubstituted, and linear, branched or cyclic, preferably saturated and linear:

- fatty alcohols;

- esters of fatty alcohols;

- fatty acid;

- fatty acid amides;

- esters of fatty acids, including triglycerides;

- ethers of fatty acids;

- ethoxylated fatty alcohols;

- ethoxylated fatty acids and their corresponding salts.

Among the fatty alcohols, mention may be made of stearyl alcohol and cetearyl alcohol, or mixtures thereof.

Among the fatty alcohol esters, mention may be made of triisostearyl citrate, ethylene glycol bis(12-hydroxystearate), tristearyl citrate, stearyl loctanoate, stearyl heptanoate, trilauryl citrate and mixtures thereof. Among the fatty acid esters, ester waxes, monoglycerides, diglycerides and triglycerides can be mentioned.

Ester waxes that may be mentioned include stearyl stearate, stearyl behenate, stearyl loctyl dodecanol, cetearyl behenate, behenyl behenate, ethylene glycol distearate, and ethylene glycol dipalmitate. In particular, C ₂₀ -C ₄₀ alkyl (hydroxystearyloxy) stearate (an alkyl group containing 20 to 40 carbon atoms) can be used alone or as a mixture.

Such a wax is in particular sold under the names Kester Wax K 82 P ^® , Hydroxypolyester K 82 P ^® and Kester Wax K 80 P ^® by Koster Keunen.

Among the triglyceride waxes, mention may be made in particular of tribegenin, C ₁₈ -C ₃₆ triglycerides and mixtures thereof.

As examples of waxes suitable for use in the invention, mention may be made in particular of waxes based on hydrocarbons, such as beeswax, lanolin wax, Chinese wax, rice bran wax, carnauba wax, candelilla wax, ouricuri wax, esparto wax, wax from lacquer berries, shellac wax, Japanese wax and sumac wax; montan wax, orange wax and lemon wax, microcrystalline waxes, paraffins and ozocerite; polyethylene waxes, Fischer-Tropsch waxes and wax copolymers and their esters.

Mention may also be made of waxes obtained by the catalytic hydrogenation of animal or vegetable oils containing linear or branched C ₈ -C ₃₂ fatty chains. Among these, particular mention may be made of isomerized jojoba oil, such as trans-isomerized partially hydrogenated jojoba oil manufactured and sold by Desert Whale under the trademark Iso-Jojoba- ^50® , hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated lanolin oil, and bis(1,1,1-trimethylolpropane)tetrastearate sold under the name Hest 2T- ^4S® by Heterene.

Mention may also be made of silicone waxes (C _30-45 alkyl dimethicone) and fluorine waxes. You can also use waxes obtained by hydrogenation of castor oil esterified with cetyl alcohol, sold under the names Phytowax ricin 16L64 ^® and 22L73 ^® company Sophim. Such waxes are described in particular in patent application FR 2 792 190.

As microwaxes which can be used in the compositions according to the invention, particular mention may be made of carnauba microwaxes such as the product sold under the name MicroCare ^350® by Micro Powders, synthetic microwaxes such as the product sold under the name MicroEase ^114S® by Micro Powders, microwaxes , formed from a mixture of carnauba wax and polyethylene wax, such as those sold under the names MicroCare 300 ^® and 310 ^® by Micro Powders, microwaxes formed from a mixture of carnauba wax and synthetic wax, such as the product sold under the name MicroCare 325 ^® by Micro Powders, polyethylene microwaxes such as those sold under the names Micropoly ^200® , ^220® , ^220L® and ^250S® by Micro Powders; and polytetrafluoroethylene microwaxes such as those sold under the names Microslip ^519® and 519 ^L® by Micro Powders.

In accordance with a particular embodiment of the invention, when the composition is in the form of a stick, it may have a solid fatty matter content, preferably from 1 to 30 wt.%, in particular from 2 to 25 wt.% and more specifically from 5 to 20 wt.% based on the total weight of the composition.

Additives

Cosmetic compositions according to the invention, in particular in stick or spray form, may also contain cosmetic adjuvants selected from deodorizing agents, desiccant agents, lipophilic suspending agents or gelling agents, emollients, antioxidants, opacifying agents, stabilizers, humectants, vitamins , bactericidal agents, preservatives, polymers, fragrances, thickeners or suspending agents, or any other ingredient commonly used in cosmetics for this type of application.

The composition according to the invention may also contain lipophilic thickeners, gelling agents and/or suspending agents to improve the texture or homogeneity of the products.

Of course, those skilled in the art will choose this or these optional additional compound(s) so that the additive(s) in question do not or substantially do not adversely affect the advantageous properties, inherently associated with the composition according to the invention.

Agents having deodorizing activity

In accordance with a particular embodiment, the compositions, in particular in the form of a stick or an aerosol, may contain in the liquid phase at least one deodorizing agent, in addition to the magnesium salts discussed above.

The term "agent having deodorizing activity" means any substance capable of reducing, masking or absorbing human body odor, in particular armpit odor.

Agents having deodorizing activity may be bacteriostatic agents or bactericidal agents that act on bacteria that create odor in the armpits, such as 2,4,4'-trichloro-2'-hydroxydiphenyl ether (triclosan (Triclosan ^® )), 2,4-dichloro-2'-hydroxydiphenyl ether, 3',4',5'-trichlorosalicilanilide, 1-(3',4'-dichlorophenyl)-3-(4'-chlorophenyl)urea (triclocarban (Triclocarban ^® ) ) or 3,7,11-trimethyldodeca-2,5,10-trienol (farnesol (Farnesol ^® )); quaternary ammonium salts such as cetyltrimethylammonium salts, cetylpyridinium salts, DPTA (1,3-diaminopropanetetraacetic acid), 1,2-decanediol (Symclariol from Symrise); glycerol derivatives such as caprylic/capric acid glycerides (Capmul MCM ^® from Abitec), glyceryl caprylate or glyceryl caprate (Dermosoft GMCY ^® and Dermosoft GMC ^® from Straetmans), polyglyceryl-2-caprate (Dermosoft DGMC ^® from Straetmans) and biguanide derivatives , for example salts of polyhexamethylene biguanide; chlorhexidine and its salts; 4-phenyl-4,4-dimethyl-2-butanol (Symdeo ^MPP® from Symrise); zinc salts such as zinc salicylate, zinc gluconate, zinc pidolate, zinc sulfate, zinc chloride, zinc lactate or zinc phenolsulfonate; salicylic acid and its derivatives such as 5-n-octanoylsalicylic acid.

Deodorizing agents may be odor absorbers such as zinc ricinoleates, sodium bicarbonate; metal-containing, silver-containing or silver-free zeolites or cyclodextrins, and their derivatives.

They may also be complexing agents such as Dissolvine GL-47- ^S® from Akzo Nobel, EDTA or DPTA. It may also be a polyhydric alcohol such as glycerol or 1,3-propanediol (Zemea propanediol sold by Dupont Tate and Lyle BioProducts); or also an enzyme inhibitor such as triethyl citrate; or alum.

Agents having deodorizing activity may also be bacteriostatic agents or bactericidal agents, ^2,4,4' -trichloro-2'-hydroxydiphenyl ether (Triclosan®), 2,4-dichloro-2'-hydroxydiphenyl ether, 3', 4',5'-trichlorosalicylanilide, 1-(3',4'-dichlorophenyl)-3-(4'-chlorophenyl)urea (Triclocarban ^® ) or 3,7,11-trimethyldodeca-2,5,10-trienol ( ^Farnesol® ); quaternary ammonium salts such as cetyltrimethylammonium salts or cetylpyridinium salts.

Agents having deodorizing activity may be contained in the composition according to the invention in a proportion of from about 0.01 to 20 wt.%, based on the total weight of the composition, and preferably in a proportion of from about 0.1 to 5 wt.%, based on the total weight of the composition .

Dehumidifiers

It is also possible to add desiccants, for example perlites, and preferably expanded perlites.

The cosmetic composition, in particular in the form of a stick or an aerosol, may contain one or more desiccants selected from perlites.

Preferably, the cosmetic composition contains one or more scavengers selected from expanded pearlites.

The perlites which can be used according to the invention are generally aluminosilicates of volcanic origin having the following composition:

- 70.0–75.0 wt.% silicon dioxide SiO ₂ ;

- 12.0–15.0 wt.% aluminum oxide Al ₂ O ₃ ;

- 3.0–5.0% sodium oxide Na ₂ O;

- 3.0–5.0% potassium oxide K ₂ O;

- 0.5–2% iron oxide Fe ₂ O ₃ ;

- 0.2–0.7% magnesium oxide MgO;

- 0.5–1.5% calcium oxide CaO; and

- 0.05–0.15% titanium oxide TiO ₂ .

In the first stage, perlite is crushed, dried, and then sorted by size. The resulting product, known as perlite ore, is gray in color and has a particle size of about 100 microns.

The perlite ore is then blown up (1000°C/2 seconds) to produce more or less white particles. When the temperature reaches 850-900 °C, the water held in the structure of the substance evaporates and causes the substance to swell relative to its original volume. Expanded perlite particles according to the invention can be produced by the expansion process described in US Pat. No. 5,002,698.

Preferably, the perlite particles used are ground; in this case they are known as expanded ground perlite (EMP). Preferably they have a particle size defined by a median diameter D50 of 0.5 to 50 µm and preferably 0.5 to 40 µm. Preferably, the perlite particles used have an uncompacted bulk density at 25°C of 10 to 400 kg/m ³ (DIN 53468 standard) and preferably 10 to 300 kg/m ³ .

Preferably, the expanded perlite particles according to the invention have a water absorption capacity, measured at the moisture point, of 200 to 1500% and preferably 250 to 800%.

The moisture point corresponds to the amount of water that must be added to 1 g of particles to obtain a homogeneous paste. This method stems directly from the oil absorption method applied to solvents. The measurements are carried out in the same way on the basis of the moisture point and the pour point, which respectively have the following definitions:

Moisture point: weight, expressed in grams, per 100 g of product, corresponding to the production of a homogeneous paste when solvent is added to the powder.

Pour Point: The mass, expressed in grams, per 100 g of product at which and above which the amount of solvent exceeds the holding capacity of the powder. It is defined as obtaining a more or less homogeneous mixture that spreads over a glass plate.

The moisture point and pour point are measured according to the following protocol:

Water absorption measurement protocol

1) Equipment used

Glass plate (25 x 25 mm)

Spatula (wooden handle and metal part (15 x 2.7 mm))

Silk bristle brush

Scales

2) Methodology

The glass plate is placed on a balance and a 1 g sample of perlite particles is obtained. Place a beaker containing the solvent on the balance and a liquid sampling pipette. The solvent is gradually added to the powder, periodically stirring the entire mixture (every 3-4 drops) with a spatula.

Note the mass of solvent required to reach the moisture point. Additional solvent is added and the weight is noted to reach the pour point. The average of the three tests should be determined.

In particular, expanded perlite particles sold under the trade names Optimat 1430 OR or Optimat 2550 by World Minerals are used.

Mineral thickeners, gelling agents and suspending agents

As a lipophilic mineral thickener, gelling agent or suspending agent, modified clays can be used, which are preferably selected from hydrophobically modified montmorillonite clays, for example hydrophobically modified bentonites or hectorites. Examples that may be mentioned include the stearalkonium product bentonite (CTFA name) (a reaction product of bentonite and stearylalkonium quaternary ammonium chloride), such as the commercial product sold under the name Tixogel MP 250 by Sud Chemie Rheologicals, United Catalysts Inc., or the disteardimonium hectorite product ( CTFA) (a reaction product of hectorite and distearyldimonium chloride) sold under the name Bentone 38 or Bentone Gel by Elementis Specialties.

Mention may also be made of fumed silica, which is optionally subjected to a hydrophobic surface treatment, with a particle size of less than 1 μm. This is because it is possible to chemically modify the silica surface through a chemical reaction that reduces the amount of silanol groups present on the silica surface. In particular, it is possible to replace silanol groups with hydrophobic groups; thus, hydrophobic silicon dioxide is obtained. The hydrophobic groups may be trimethylsiloxyl groups, which are obtained in particular by treating pyrogenic silica in the presence of hexamethyldisilazane. Silicas thus treated are known as "silica silylate" according to CTFA (8th edition, 2000). They are sold, for example, under the names Aerosil R812 ^® by Degussa, Cab-O-Sil TS-530 ^® by Cabot; dimethylsilyloxy or polydimethylsiloxane groups, which are obtained by treating fumed silica in the presence of polydimethylsiloxane or dimethyldichlorosilane. Silicas thus treated are known as "silica dimethyl silylate" according to CTFA (8th edition, 2000). They are sold, for example, under the names Aerosil R972 ^® by Degussa, Cab-O-Sil TS-610 ^® and Cab-O-Sil TS-720 ^® by Cabot.

Hydrophobic fumed silica preferably has a particle size from nanometer to micrometer, for example, from about 5 to 200 nm.

Organic thickeners, gelling agents and suspending agents

Organic lipophilic thickeners or gelling agents are, for example, partially or fully cross-linked three-dimensional elastomeric polyorganosiloxanes, for example, sold under the names KSG6 ^® , KSG16 ^® and KSG18 ^® by Shin-Etsu, Trefil E-505C ^® or Trefil E-506C ^® by Shin-Etsu Dow Corning, Gransil SR-CYC ^® , SR DMF10 ^® , SR-DC556 ^® , SR 5CYC gel ^® , SR DMF 10 gel ^® and SR DC 556 gel ^® by Grant Industries and SF 1204 ^® and JK 113 ^® by General Electric; ethylcellulose, such as the product sold under the name ^Ethocel® by Dow Chemical; galactomannans containing one to six and in particular two to four hydroxyl groups per saccharide, substituted with a saturated or unsaturated alkyl chain, for example guar gum alkylated with C ₁ -C ₆ and in particular C ₁ -C ₃ alkyl chains, and mixtures thereof; "diblock", "triblock" or "radial" block copolymers of the polystyrene/polyisoprene or polystyrene/polybutadiene type, for example the products sold under the name Luvitol ^HSB® by BASF, the polystyrene/ethylene propylene copolymer type, for example the products sold under the name ^Kraton® by Shell Chemical Co., or a polystyrene/ethylene-butylene type, and mixtures of triblock and radial (star) copolymers in isododecane, such as those sold by Penreco under the name ^Versagel® , such as a mixture of butylene/ethylene/styrene triblock and star ethylene/propylene/styrene copolymer in isododecane (Versagel M 5960).

Lipophilic thickeners or gelling agents that may also be mentioned include polymers with a weight average molecular weight of less than 100,000 containing a) a polymer backbone with hydrocarbon-based repeating units containing at least one heteroatom, and optionally b) at least one optional functionalized side fatty chain and/or terminal fatty chain containing from 6 to 120 carbon atoms and associated with these units on a hydrocarbon basis, as described in patent applications WO-A02/056 847 and WO-A02/47619, in particular polyamide resins ( in particular containing alkyl groups containing from 12 to 22 carbon atoms), such as described in US-A-5 783 657.

Among the lipophilic thickeners or gelling agents that can be used in the compositions according to the invention, mention may also be made of fatty acid dextrin esters such as dextrin palmitates, in particular such as the products sold under the name Rheopearl TL ^® or Rheopearl KL ^® by Chiba Flour.

It is also possible to use organosilicon polyamides of the polyorganosiloxane type, such as those described in US Pat. No. 5,874,069, US Pat. No. 5,919,441, US Pat.

These silicone polymers can belong to the following two groups:

- polyorganosiloxanes containing at least two groups in the polymer chain capable of forming hydrogen bonds, and/or

polyorganosiloxanes containing at least two groups located on grafted groups or branches capable of forming hydrogen bonds.

Thickening agents, gelling agents and/or suspending agents are preferably present in amounts ranging from 0.1 to 15 wt.% and more preferably from 0.2 to 10 wt.% based on the total weight of the composition.

The amounts of these various components that may be present in the composition of the invention are typically used in antiperspirant compositions.

Emulsifiers

The oil phase may also contain one or more emulsifiers with a hydrophilic-lipophilic balance (HLB) of less than 8, preferably less than or equal to 6, and in particular ranging from 4 to 6.

They may be soluble or dispersible in said phase.

Examples of emulsifiers that may be mentioned include esters of fatty acids and polyhydric alcohols, in particular glycerol or sorbitol, and especially esters of isostearic, oleic and ricinoleic acid and polyhydric alcohols, such as a mixture of petrolatum, polyglycerol-3-oleate, glyceryl isostearate, hydrogenated castor oil and ozokerite sold under the name Protegin W ^® by Goldschmidt, sorbitan anisostearate, polyglyceryl diisostearate, polyglyceryl-2-sesquiisostearate; saccharide esters and ethers such as methylglucose dioleate; fatty esters such as magnesium lanolate; dimethicone copolyols; and alkyldimethicone copolyols. Examples that may be mentioned include alkyl dimethicone copolyols according to formula (I) below:

where:

- R ₁ denotes a linear or branched C ₁₂ -C ₂₀ and preferably C ₁₂ -C ₁₈ alkyl group;

- R ₂ denotes the group -C _n H _2n - (-OC ₂ H ₄ -) _x - (-OC ₃ H ₆ -) _y -O-R ₃ ;

- R ₃ denotes a hydrogen atom, or a linear or branched alkyl radical containing from 1 to 12 carbon atoms;

- a is an integer from about 1 to 500;

- b is an integer from about 1 to 500;

- n is an integer from 2 to 12 and preferably from 2 to 5;

- x is an integer from about 1 to 50 and preferably from 1 to 30;

- y is an integer from about 0 to 49 and preferably from 0 to 29, with the proviso that when y is other than zero, the x/y ratio is greater than 1 and preferably is from 2 to 11.

Among the emulsifiers which are alkyl dimethicone copolyols of the formula (I) which are preferred, mention is made more particularly of cetyl PEG/PPG-10/1-dimethicone and more particularly of a mixture of cetyl PEG/PPG-10/1-dimethicone and dimethicone (name according to INCI), such as the product sold under the trade name Abil EM90 by Goldschmidt, or alternatively a mixture (polyglycerol-4-stearate and cetyl-PEG/PPG-10/1-dimethicone (and) hexyl laurate), such as the product , sold under the trade name Abil WE09 by the same company.

Among the water-in-oil type emulsifiers, dimethicone copolyols corresponding to the formula (II) below can also be mentioned:

where:

- R ₄ means the group –C _n H _2m –(–OC ₂ H ₄ –) _x –(–OC ₃ H ₆ –) _y –O–R ₅ ;

- R ₅ denotes a hydrogen atom or a linear or branched alkyl radical containing from 1 to 12 carbon atoms;

- c is an integer from about 1 to 500;

- d is an integer from about 1 to 500;

- m is an integer from 2 to 12 and preferably from 2 to 5;

- s is an integer from about 1 to 50 and preferably from 1 to 30;

- t is an integer from about 0 to 50 and preferably from 0 to 30;

- provided that the sum s + t is greater than or equal to 1.

Among these preferred dimethicone copolyol emulsifiers of formula (II) are, in particular, PEG-18/PPG-18 dimethicone and more specifically a mixture of cyclopentasiloxane (and) PEG-18/PPG-18 dimethicone (INCI name), for example a product sold by Dow Corning under the trade name Silicone DC5225 C or KF-6040 from Shin-Etsu.

According to a particularly preferred form, a mixture of at least one emulsifier of formula (I) and at least one emulsifier of formula (II) is used.

More specifically, a mixture of PEG-18/PPG-18 dimethicone and cetyl-PEG/PPG-10/1-dimethicone is used, and even more specifically a mixture of (cyclopentasiloxane (and) PEG-18/PPG-18 dimethicone) and cetyl-PEG/PPG -10/1-dimethicone and dimethicone or (polyglyceryl-4-stearate and cetyl-PEG/PPG-10 (and) dimethicone (and) hexyl laurate).

Among the water-in-oil emulsifiers, nonionic emulsifiers derived from fatty acids and polyhydric alcohols, alkyl polyglycosides (APGs), sugar esters and mixtures thereof can also be mentioned.

As nonionic emulsifiers derived from fatty acids and a polyhydric alcohol, esters of fatty acids and a polyhydric alcohol can in particular be used, where the fatty acid in particular contains a C ₈ -C ₂₄ alkyl chain and the polyhydric alcohols are, for example , glycerin and sorbitol. Esters of fatty acids and polyhydric alcohols which may in particular be mentioned include esters of isostearic acid and polyhydric alcohols, esters of stearic acid and polyhydric alcohols, and mixtures thereof, in particular esters of isostearic acid and glycerol and/or sorbitol .

Esters of stearic acid and polyhydric alcohols which may be particularly mentioned include polyethylene glycol esters, for example PEG-30 dipolyhydroxystearate, such as the product sold under the name Arlacel P135 by ICI.

Examples of esters of glycerol and/or sorbitol that may be mentioned include polyglyceryl isostearate such as the product sold under the name Isolan GI 34® by Evonik Goldschmidt, sorbitan anisostearate such as the product sold under the name Arlacel 987 by ICI, sorbitol glyceryl isostearate such as the product , sold under the name Arlacel 986 by ICI, a mixture of sorbitan anisostearate and polyglyceryl isostearate (3 mol) sold under the name Arlacel 1690 by Uniqema, and mixtures thereof.

The emulsifier may also be selected from alkyl polyglycosides with an HLB 15 less than 7, such as those represented by the general formula (1) below:

where:

- R represents a branched and/or unsaturated alkyl radical containing from 14 to 24 carbon atoms;

- G is a reduced sugar containing 5 to 6 carbon atoms; and

- x is an integer from about 1 to 10 and preferably from 1 to 4.

G in particular represents glucose, fructose or galactose.

The unsaturated alkyl radical may contain one or more ethylene double bonds, and in particular one or two ethylene double bonds.

As alkyl polyglycosides of this type, there may be mentioned alkyl polyglucosides (G is glucose in the formula (1)) and in particular compounds of formula (1) in which R more specifically represents an oleyl radical (unsaturated C ₁₈ radical) or an isostearyl radical (saturated C ₁₈ radical), G is glucose, x is from 1 to 2, in particular isostearyl glucoside or oleyl glucoside, and mixtures thereof.

This alkylpolyglucoside can be used as a mixture with a co-emulsifier, more specifically a fatty alcohol and in particular a fatty alcohol containing the same fatty chain as the alkylpolyglucoside chain, i.e. containing from 14 to 24 carbon atoms, and containing a branched and /or an unsaturated chain, for example with isostearyl alcohol if the alkyl polyglucoside is isostearyl glucoside, and oleyl alcohol if the alkyl polyglucoside is oleyl glucoside, optionally in the form of a self-emulsifying composition, as described, for example, in WO-92/06778.

For example, a mixture of isostearyl glucoside and isostearyl alcohol sold under the name Montanov WO 18 by SEPPIC, as well as a mixture of octyldodecanol and octyldodecyl xyloside sold under the name Fludanov 20X by SEPPIC can be used.

Mention may also be made of succinic-terminated polyolefins, for example esterified succinic-terminated polyisobutylenes and their salts, in particular diethanolamine salts, such as the products sold under the names Lubrizol 2724, Lubrizol 2722 and Lubrizol 5603 by Lubrizol, or the commercial product Chemcinnate 2000 .

Among water-in-oil emulsifiers, mention may also be made of oxyalkylated, in particular polyoxyethylene and/or polyoxypropylene and more particularly polyoxyethylene silicone elastomers, such as those described in US-A-5 236 986, US-A-5 412 004, US- A-5 837 793 and US-A-5 811 487.

The polyoxyalkylenated silicone elastomer is preferably present in the form of a gel in at least one hydrocarbon-based oil and/or one silicone oil. In these gels, the polyoxyalkylated elastomer is often in the form of non-spherical particles.

Also available as polyoxyethylene silicone elastomers are those sold by Shin-Etsu under the names:

- KSG-21 containing 27% active substance, INCI name: dimethicone/PEG-10-dimethicone vinyl dimethicone crosspolymer;

- KSG-20 containing 95% active substance, INCI name: PEG-10-dimethicone crosspolymer;

- KSG-30 containing 100% active substance, INCI name: lauryl-PEG-15-dimethicone vinyl dimethicone crosspolymer;

- KSG-31 containing 25% active substance, INCI name: lauryl-PEG-15-dimethicone vinyl dimethicone crosspolymer;

- KSG-32 or KSG-42 or KSG-320 or KSG-30 containing 25% active substance, INCI name: lauryl-PEG-15-dimethicone vinyl dimethicone crosspolymer;

- KSG-33 containing 20% active substance;

- KSG-210 containing 25% active substance, INCI name: dimethicone/PEG-10/15 crosspolymer;

- KSG-310: cross-linked lauryl-modified polyoxyethylene polydimethylsiloxane in mineral oil;

- KSG-330;

- KSG-340;

- KSG-226146 containing 32% active, INCI name: dimethicone/PEG-10-dimethicone vinyl dimethicone crosspolymer;

or sold by Dow Corning under the names:

- DC9010 containing 9% active substance, INCI name: PEG-12-dimethicone crosspolymer;

- DC9011 containing 11% active substance.

These products are typically offered in the form of oil gels containing silicone elastomer particles.

Preferably, KSG-210 (INCI name: dimethicone/PEG-10/15 crosspolymer) is used, which contains 25% silicone elastomer as active ingredient in silicone oil.

Among water-in-oil emulsifiers, polyglycerinated silicone elastomers may also be mentioned. Such elastomers are specifically described in WO 2004/024 798.

Polyglycerinated silicone elastomers that can be used include those sold under the names:

- KSG-710 containing 25% active substance, INCI name: dimethicone/polyglycerol-3 crosspolymer;

- KSG-810;

- KSG-820;

- KSG-830;

- KSG-840 sold by Shin-Etsu.

Agent having antiperspirant activity

According to a particular embodiment, the composition according to the invention, in particular in the form of a stick or aerosol, may also contain at least one agent having antiperspirant activity.

The term "agent having antiperspirant activity" means a salt which itself has the effect of reducing perspiration, reducing the feeling of skin moisture associated with human sweat, or masking human sweat.

The cosmetic composition may in particular contain one or more antiperspirant active agents selected from aluminum and/or zirconium salts or complexes.

Among aluminum salts or complexes, aluminum halide hydrates may be mentioned.

Among aluminum salts, mention may be made in particular of aluminum chlorohydrex, aluminum chlorohydrex, aluminum chlorohydrex-polyethylene glycol complex, aluminum chlorhydrex-propylene glycol complex, aluminum dichlorohydrate, aluminum dichlorohydrex-polyethylene glycol complex, aluminum dichlorohydrex-propylene glycol complex, aluminum sesquichlorohydrate, aluminum sesquichlorohydrex-polyethylene glycol complex , aluminium-propylene glycol sesquichlorhydrex complex, aluminum sulfate buffered with sodium aluminum lactate.

Aluminum sesquichloride is specifically sold under the tradename Reach ^301® by SummitReheis.

Aluminum chlorohydrate is specifically sold under the trade names Locron S FLA ^® , Locron P and Locron L.ZA by Clariant; under the tradenames Microdry Aluminum Chlorohydrate ^® , Micro-Dry 323 ^® , Chlorhydrol 50, Reach 103 and Reach 501 by SummitReheis; under the trade name Westchlor 200 ^® by Westwood; under the trade name Aloxicoll PF 40 ^® by Guilini Chemie; Cluron 50% ^® from Industria Quimica Del Centro; or Clorohidroxido Aluminio SO A 50% ^® from Finquimica.

In particular, aluminum chlorohydrate, aluminum sesquichlorohydrate and mixtures thereof are used.

The content of aluminum salts or complexes present in the composition according to the invention may be from 0.2 to 50 wt.%, preferably from 1 to 20 wt.% and more specifically from 2 to 15 wt.%, based on the total weight of the composition in the form oils.

Preferably, the composition according to the invention contains less than 2 wt.% aluminum salts or complexes, more preferably less than 1 wt.% aluminum salts or complexes, and even more preferably less than 0.5 wt.% aluminum salts or complexes, based on the total weight of the composition.

Preferably, the composition according to the invention does not contain aluminum salts or complexes.

propellant

The composition according to the invention, in the case of an aerosol composition, may contain one or more propellants.

The propellant used in the composition according to the invention is selected from dimethyl ether, volatile hydrocarbons such as propane, isopropane, n-butane, isobutane, n-pentane and isopentane, and mixtures thereof, optionally with at least one chloro and/or fluorocarbon . Among the latter, mention may be made of the compounds sold by DuPont de Nemours under the names Freon ^® and Dymel ^® , and in particular monofluorotrichloromethane, difluorodichloromethane, tetrafluorodichloroethane and 1,1-difluoroethane, sold in particular under the trade name Dymel 152 A ^® by DuPont .

Carbon dioxide, nitrous oxide, nitrogen or compressed air can also be used as a propellant.

Preferably the composition according to the invention contains a propellant selected from volatile hydrocarbons.

More preferably the propellant is selected from isopropane, n-butane, isobutane, n-pentate and isopentane and mixtures thereof, and is preferably isobutane.

In particular, the weight ratio between liquid phase and propellant gas ranges from 5/95 to 50/50, preferably from 10/90 to 40/60, and more preferably from 15/85 to 30/70.

Release form

Compositions according to the invention can be obtained by a person skilled in the art in accordance with well-known methods.

The compositions may be in the form of a liquid, gel, semi-solid, solid, or free-flowing or compact powder.

The compositions according to the invention may in particular be packaged under pressure in an aerosol device or in a spray bottle; packed in a device equipped with a perforated wall, in particular a grid; packed in a device equipped with a roll-on applicator (roll-on pack); packed in the form of sticks (pencils). As such, they contain ingredients commonly used in products of this type, known to those skilled in the art.

According to another particular form of the invention, the compositions according to the invention may be solid, in particular in the form of a stick or stick.

In particular, the anhydrous compositions according to the invention are aerosol compositions or in the form of a stick, and preferably are aerosol compositions.

The term "solid composition" means that the value of the maximum force, measured by texturometry when the probe penetrates the sample of the composition, must be at least equal to 0.25 Newtons, in particular, at least equal to 0.30 Newtons and, in particular, at least equal to 0.35 Newtons when evaluated under exactly the same measurement conditions as described below.

The compositions are poured hot into jars with a diameter of 4 cm and a depth of 3 cm. Cooling is carried out at room temperature. The hardness of the compositions obtained is measured after a 24 hour interval. The jars containing the samples are characterized for texture using a texture analyzer such as sold by Rheo, TA-XT2, according to the following protocol: a 5 mm diameter stainless steel ball probe is brought into contact with the sample at a speed of 1 mm/s.

The measurement system detects the interface with the sample with a detection limit of 0.005 Newton. The sensor penetrates the sample to a depth of 0.3 mm at a rate of 0.1 mm/s. The measuring device registers the change in time of the force measured at pressure during the penetration phase. The hardness of the sample corresponds to the average value of at least three measurements of the maximum force values determined during the penetration of the sensor.

The invention also relates to a cosmetic body care method for eliminating odor associated with human perspiration, in particular armpit odor, and optionally human perspiration, which consists in applying to the skin surface an effective amount of a cosmetic composition as described above.

The application time of the cosmetic composition to the skin surface can be from 0.5 to 10 seconds and preferably from 1 to 5 seconds.

The composition according to the invention can be applied to the surface of the skin several times.

In particular, the process of cosmetic care according to the invention consists in applying to the surface of the armpits an effective amount of a cosmetic composition, as described above.

The invention also relates to the use of said body care composition for the elimination of odor associated with human perspiration, in particular armpit odor, and optionally perspiration in a human.

Another subject of the invention is an aerosol device consisting of a container containing an aerosol composition as defined above and a means for dispensing said composition.

The metering means included in the aerosol device typically consists of a metering valve controlled by a metering head which contains a nozzle through which the aerosol composition is sprayed. The container containing the pressurized composition may be opaque or transparent. It can be made of glass, polymer or metal, optionally covered with a protective layer of varnish.

Throughout the text of the description, including the claims, unless otherwise indicated, the term "comprising" should be understood as a synonym for the expression "comprising at least one".

The expressions "from ... to ..." and "in the range from ... to ...", unless otherwise indicated, should be understood to mean the inclusion of limit values.

In the description and in the examples, unless otherwise indicated, percentages mean percentages by weight. Thus, weight percentages are given based on the total weight of the composition. Temperature, unless otherwise indicated, is expressed in degrees Celsius, and pressure, unless otherwise indicated, is atmospheric pressure.

It should also be understood that, unless otherwise indicated, the contents are expressed based on the weight of the final composition according to the invention, i.e. taking into account the possible presence of a propellant gas.

The invention is illustrated in more detail by the non-limiting examples below.

Examples

Examples 1 and 2

Two deodorant compositions according to the invention and not according to the invention, in aerosol form were prepared according to the method described below.

The compositions of the two formulations are detailed in the table below. The amounts indicated are weight percent based on the total weight of the composition.

Connections Tradename Name according to INCI Composition 1 (according to the invention) Composition 2 (non-inventive) Distearylmethylammonium-modified hectorite Bentone 38VCG by Elementis Distearyldimonium hectorite 0.25 0.25 magnesium oxide Magnesio Oxide Light by Dr Paul Lohmann magnesium oxide 1.5 1.5 Refined Coconut Oil Refined Coconut Oil GV 24/26 by Sio (ADM) Cocos nucifera oil 2 / flavoring / flavoring 1.1 1.1 Polydimethylsiloxane (viscosity: 10 cSt) Xiameter PMX-200 Silicone Fluid 10 CS by Dow Corning Dimethicone 1.5 1.5 A mixture of α,ω-dihydroxylated polydimethylsiloxane/polydimethylsiloxane 5 cSt; Xiameter PMX-1503 Fluid by Dow Corning Dimethicone(s) dimethiconol 0.6 0.6 Polypropylene carbonate Huntsman Jeffsol Propylene Polypropylene carbonate 0.08 0.08 Isododecane Isododecane manufactured by Ineos Isododecane 3 3 Isopropyl palmitate Isopropyl palmitate manufactured by Cognis (BASF) Isopropyl palmitate 4.97 6.97 Isobutane / Isobutane 85 85

The composition was prepared by pre-mixing the oils with stirring.

Magnesium oxide was then dispersed in the mixture under high shear. The other ingredients were then added at high shear.

Finally, aerosols were prepared by pressurizing 15 g of the formulation with 85 g of liquefied isobutane gas.

Transfer Tolerance Performance Results

Way to evaluate white traces:

Each of the studied compositions was applied to a product called Supplale ^® manufactured by Idemitsu Technofine, imitating the skin, mounted on a rigid substrate. This application was carried out by spraying an aerosol for 2 seconds from a distance of 15 cm from the substrate.

The fabric was scanned using a scanner sold under the name Epson V500 Scanner (settings: gray scale 16 bit, resolution 300 dpi).

Transfer evaluation was performed by observing the residual layer on the synthetic leather sheet.

The aerosols prepared in Example 1 (according to the invention) containing coconut oil and those obtained in Example 2 (not according to the invention) without coconut oil were sprayed under the conditions described above to obtain the results described in the table below:

Spray can Composition 1
(according to the invention) Composition 2
(not in accordance with the invention) White footprint score Good bad

The traces obtained when applying composition 1 according to the invention are much less pronounced compared to composition 2, which is not in accordance with the invention.

Example 3

The deodorant composition according to the invention in the form of a stick was prepared in the manner described below. The composition of this formulation is detailed in the table below. The amounts indicated are weight percent based on the total weight of the composition.

Connections Tradename Name according to INCI Composition 3 (according to the invention) Polydimethylsiloxane Element14 PDMS 10-A by Momentive Dimethicone fourteen magnesium oxide Magnesio Oxide Light by Dr Paul Lohmann magnesium oxide fifteen Refined Coconut Oil Refined Coconut Oil GV 24/26 by Sio (ADM) Cocos nucifera oil ten Butyl ether PPG-14 Low odor Fluid AP manufactured by Amerchol Butyl ether PPG-14 ten Isopropyl myristate Isopropyl myristate from BASF Isopropyl myristate fifteen Hydrogenated Polydecene Polydecene Silkflo 366 manufactured by Ineos Hydrogenated Polydecene 16 Synthetic wax Cirebelle 303 manufactured by Cirebelle Synthetic wax 5 Polyethylene glycol distearate 400 Distearate PEG 400 (Dub DS PEG 8) from Stéarineries Dubois PEG-8 distearate 2.5 Synthetic wax Cirebelle 108 by Cirebelle Synthetic wax 12 flavoring / flavoring 0.5

Cyclomethicone was heated to 65°C. The other ingredients were added one at a time at 65–70°C. The entire mixture was homogenized for 15 minutes.

The mixture was cooled to about 55°C (several degrees above the mixture's thickening temperature) and poured into sticks. The temperature of the entire mixture was maintained at 4°C for 30 minutes.

The resulting sticks form a dry, non-greasy layer while maintaining good antiperspirant efficacy.

Examples 4 and 5

Two deodorant compositions in aerosol form according to the invention were prepared in the manner described below and compared with the composition 2 described above, which is not in accordance with the invention.

The compositions are detailed in the table below. The amounts indicated are weight percent based on the total weight of the composition.

Tradename INCI name Composition 4 (according to the invention) Composition 5 (non-inventive) Bentone 38VCG by Elementis Distearyldimonium hectorite 0.25 0.25 Magnesio Oxide Light by Dr Paul Lohmann magnesium oxide 1.5 1.5 Pharmaceutical castor oil Ricinus communis seed oil
(castor beans) 2 / Virgin sweet almond oil Prunus amygdalus duclis (sweet almond) oil / 2 / flavoring 1.1 1.1 Xiameter PMX-200 Silicone Fluid 110 CS by Dow Corning Dimethicone 1.5 1.5 Xiameter PMX-1503 Fluid by Dow Corning Dimethicone(s) dimethiconol 0.6 0.6 Huntsman Jeffsol Propylene Polypropylene carbonate 0.08 0.08 Isododecane manufactured by Ineos Isododecane 3 3 Isopropyl palmitate manufactured by Cognis (BASF) Isopropyl palmitate 4.97 4.97 / Isobutane 85 85

The composition was prepared by pre-mixing the oils with stirring.

Magnesium oxide was then dispersed in the mixture at high speed. The other ingredients were then added at high speed.

Finally, aerosols were prepared by pressurizing 15 g of the formulation with 85 g of liquefied isobutane gas.

Transfer Tolerance Performance Results

The evaluation of each of the compositions was carried out by the method of evaluation of white traces, described in detail in examples 1 and 2.

The aerosols obtained in examples 4 and 5 (according to the invention), containing the oil required according to the invention, and obtained in example 2 (not corresponding to the invention) without the oil required according to the invention, were sprayed under the conditions described above and obtained the results described in the table below:

Spray can Composition 4
(according to the invention) Composition 5 (according to the invention) Composition 2 (non-inventive) White footprint score Good Good bad

The traces obtained when applying compositions 4 and 5 according to the invention are significantly less pronounced compared to composition 2, which is not in accordance with the invention.

Claims (37)

1. Anhydrous deodorant composition in the form of an aerosol composition or in the form of a stick, containing: - from 0.3 to 5 wt.% active substance selected from magnesium salt(s), magnesium oxide and magnesium hydroxide, or mixtures thereof, based on the total weight of the composition, when the composition is in the form of an aerosol; and from 5 to 25 wt.% active substance selected from salt(s) of magnesium, magnesium oxide and magnesium hydroxide, or mixtures thereof, based on the total weight of the composition, when the composition is in the form of a stick; where the specified (s) salt (salts) of magnesium is selected (s) from magnesium carbonate, magnesium bicarbonate, magnesium chloride, magnesium sulfate, magnesium acetate, magnesium pidolate, magnesium gluconate, magnesium glutamate, magnesium heptagluconate, magnesium ketogluconate, magnesium lactate, magnesium ascorbate, magnesium citrate, magnesium aspartate, magnesium pantothenate, magnesium sorbate, magnesium nitrate, magnesium lactate gluconate, magnesium fulvate and mixtures thereof; - from 1 to 30 wt.%, based on the total weight of the composition of at least one hydrocarbon-based vegetable oil, different from at least one fatty acid ester listed below; and - from 1 to 30 wt.% based on the total weight of the composition of at least one fatty acid ester selected from isopropyl palmitate, isopropyl myristate, isononyl isonanoate and C ₁₂ -C ₁₅ alkyl benzoate and mixtures thereof. 2. Composition according to claim 1, characterized in that the active substance is selected from magnesium oxide, magnesium carbonate, magnesium hydroxide and magnesium bicarbonate. 3. Composition according to claim 1 or 2, characterized in that the active substance is selected from magnesium oxide. 4. The composition according to any one of paragraphs. 1-3, characterized in that the content of salt(s) of magnesium, magnesium oxide or magnesium hydroxide, or mixtures thereof, is from 0.5 to 2 wt.% of the active substance, based on the total weight of the composition, when the composition is in the form aerosol. 5. The composition according to any one of paragraphs. 1-3, characterized in that the content of salt(s) of magnesium, magnesium oxide or magnesium hydroxide, or mixtures thereof, is from 10 to 20 wt.% of the active substance, based on the total weight of the composition, when the composition is in the form of a stick. 6. Composition according to any one of paragraphs. 1-5, characterized in that it contains from 1 to 20 wt.% and preferably from 1 to 15 wt.% vegetable (s) hydrocarbon-based oil (oils), based on the total weight of the composition. 7. The composition according to any one of paragraphs. 1-6, characterized in that the hydrocarbon-based vegetable oil is coconut oil. 8. The composition according to any one of paragraphs. 1-7, characterized in that the fatty acid ester is selected from isopropyl palmitate and isopropyl myristate and mixtures thereof. 9. The composition according to any one of paragraphs. 1-8, characterized in that the fatty acid ester is isopropyl palmitate. 10. The composition according to any one of paragraphs. 1-9, characterized in that it contains from 2 to 20 wt.% complex (s) ester (s) fatty acid (s) and preferably from 3 to 15 wt.% complex (s) ester(s) of fatty acid(s) based on the total weight of the composition. 11. Composition according to any one of paragraphs. 1-10, characterized in that it contains less than 2 wt.% salts or complexes of aluminum, more preferably less than 1 wt.% salts or complexes of aluminum, and even more preferably less than 0.5 wt.% salts or complexes of aluminum, based on the total the weight of the composition and even more preferably does not contain aluminum salts or complexes. 12. The composition according to any one of paragraphs. 1-11, characterized in that it contains at least one volatile oil, preferably isododecane. 13. The composition according to any one of paragraphs. 1-4 and 6-12, characterized in that it contains at least one or more propellants and preferably isobutane. 14. The composition according to any one of paragraphs. 1-13, characterized in that it contains: - an active substance selected from magnesium salt(s), magnesium oxide and magnesium hydroxide, or mixtures thereof; - Coconut oil; and - at least one fatty acid ester. 15. The composition according to any one of paragraphs. 1-13, characterized in that it contains: - an active substance selected from magnesium salt(s), magnesium oxide and magnesium hydroxide, or mixtures thereof; at least one hydrocarbon-based vegetable oil, and - isopropyl palmitate. 16. The composition according to any one of paragraphs. 1-13, characterized in that it contains: - an active substance selected from magnesium salt(s), magnesium oxide and magnesium hydroxide, or mixtures thereof; - coconut oil and - isopropyl palmitate. 17. The composition according to any one of paragraphs. 1-13, characterized in that it contains: - an active substance selected from magnesium oxide; - coconut oil and - isopropyl palmitate. 18. Composition according to any one of paragraphs. 1-17, characterized in that it is an aerosol composition. 19. A method of cosmetic body care for eliminating odor associated with perspiration in humans, comprising the step of applying a composition according to any one of paragraphs. 1-18 on the surface of the skin. 20. The method of claim 19, wherein the odor associated with human perspiration is an odor in the armpits. 21. The method of claim 19 or 20, wherein the method is further for cosmetic treatment to eliminate perspiration in a human.