RU2692476C2 - Deodorant in form of emulsion containing mixture of alkyl polyglycoside and fatty alcohol, associative non-ionic polyether-polyurethane, volatile oil on hydrocarbon base - Google Patents

Abstract

FIELD: cosmetic industry.SUBSTANCE: group of inventions relates to the cosmetic industry, specifically to a deodorant oil-in-water emulsion, characterized in that it comprises: a) at least one continuous aqueous phase; and b) at least one oily phase dispersed in said aqueous phase and containing at least one hydrocarbon-based volatile oil, wherein the hydrocarbon-based volatile oil is selected from C-Cisoalkanes; and c) at least one mixture containing at least one alkyl polyglycoside, which alkyl chain is linear or branched and contains 12–22 carbon atoms, and at least one linear or branched fatty alcohol having 12–22 carbon atoms; d) at least one associative non-ionic polyether-polyurethane; e) at least one deodorant active agent and relates to a body odour treatment method.EFFECT: group of inventions reduces adhesion on application by 50 %.21 cl, 2 dwg

Description

The present invention relates to an oil-in-water emulsion containing:

a) at least one continuous aqueous phase; and

b) at least one oil phase dispersed in said aqueous phase and containing at least one volatile hydrocarbon-based oil; and

c) at least one mixture containing at least one alkyl polyglycoside, the alkyl chain of which is linear or branched and contains 12-22 carbon atoms, and at least one linear or branched fatty alcohol having 12-22 carbon atoms;

g) at least one associative non-ionic polyester-polyurethane;

e) at least one deodorizing active agent.

The present invention also relates to a method of affecting / treating body odor and, optionally, perspiration of a person, which consists in applying an emulsion, as previously defined, to the keratin material.

In the cosmetic field, it is well known to use topical deodorizing products containing active substances such as antiperspirants, bactericides or odor absorbers to reduce or even prevent body odor, in particular, as a rule, unpleasant odor from the axillary region.

Many different types of deodorant compositions have been described in the literature and have appeared on the market in such forms as gels, sticks, creams, roller forms or aerosols.

Among the deodorants in the form of a cream, there are three main types of formulations: anhydrous or soft solid formulations, water-in-oil emulsions and oil-in-water emulsions.

Soft, solid, anhydrous formulations and water-in-oil emulsions, which are homogeneous, oil-based materials, exhibit a drawback that is to create a greasy sensation when applied and no freshness or even insufficient effectiveness of the deodorant.

Deodorants in the form of oil-in-water emulsions with a continuous water phase, packed in the form of spinning balls, are especially popular due to their special cosmetic properties in terms of the feeling of freshness on the skin after application.

Today, consumers require effective deodorants that have the best sensory properties throughout the day, in particular, roller deodorants, which are often perceived as sticky and take time to dry after application.

From EP 1550435, oil-in-water antiperspirant formulations containing

(a) at least one mixture containing at least one alkylpolyglycoside, the alkyl chain of which is linear or branched and contains 12-22 carbon atoms, and at least one linear or branched fatty alcohol having 12-22 carbon atoms;

(b) at least one associative non-ionic polyester-polyurethane.

These compositions are not completely satisfactory from the point of view of sensory properties, since they can lead to a perceptible sticky effect for the consumer.

Therefore, there is a need to find new formulations of deodorants that can be packaged in roller form, with good efficiency, and in which the sticky effect is noticeably reduced relative to the formulations known from the prior art.

The authors of the present invention unexpectedly found that this goal can be achieved using an oil-in-water emulsion containing:

a) at least one continuous aqueous phase; and

b) at least one oil phase dispersed in said aqueous phase and containing at least one volatile hydrocarbon-based oil; and

c) at least one mixture containing at least one alkyl polyglycoside, the alkyl chain of which is linear or branched and contains 12-22 carbon atoms, and at least one linear or branched fatty alcohol having 12-22 carbon atoms;

g) at least one associative non-ionic polyester-polyurethane;

e) at least one deodorizing active agent.

This type of oil-in-water emulsion noticeably reduces stickiness when applied, resulting in a lighter texture and a cleaner skin feel.

This discovery forms the basis of the present invention.

Therefore, the present invention primarily relates to an oil-in-water emulsion containing:

a) at least one continuous aqueous phase; and

b) at least one oil phase dispersed in said aqueous phase and containing at least one volatile hydrocarbon-based oil; and

c) at least one mixture containing at least one alkyl polyglycoside, the alkyl chain of which is linear or branched and contains 12-22 carbon atoms, and at least one linear or branched fatty alcohol having 12-22 carbon atoms;

g) at least one associative non-ionic polyester-polyurethane;

e) at least one deodorizing active agent.

The present invention, secondly, relates to a method for treating body odor and, optionally, sweating a person, which consists in applying an emulsion as defined previously on a keratin material.

According to one particular form of the present invention, the emulsion contains a physiologically acceptable medium.

In the framework of the present invention, the term "physiologically acceptable medium" means an environment that is suitable for topical administration of a composition, i.e. an environment that is odorless and does not have an unpleasant appearance and is fully compatible with local application. Such an environment is considered “physiologically acceptable” when it does not cause any tingling, stinging or reddening that is unacceptable to the user.

The term "deodorizing active agent" means any substance that can reduce, mask or absorb odors of the human body, in particular odors from the axillary region.

The term “oil” means a fatty substance that is liquid at room temperature (25 ° C) and atmospheric pressure (760 mm Hg, i.e. 105 Pa). Oil can be volatile or non-volatile.

In the framework of the present invention, the term "volatile oil" means an oil that is able to evaporate upon contact with skin or keratin fibers in less than one hour at ambient temperature and atmospheric pressure. Volatile oils of the present invention are volatile cosmetic oils that are liquid at ambient temperature with a non-zero vapor pressure at ambient temperature and atmospheric pressure, in the range of 0.13-40 000 Pa (10 ^-3 -300 mm Hg. Art.), in the range of 1.3-13,000 Pa (0.01-100 mm Hg) and more preferably 1.3-1300 Pa (0.01-10 mm Hg).

The term "hydrocarbon-based oil" means an oil mainly containing carbon and hydrogen atoms and possibly one or more functional groups selected from hydroxyl, ester, ether and carboxyl functional groups.

The term “oil in water” means a composition comprising a continuous aqueous phase and an oil phase dispersed in an aqueous phase in which both phases are stabilized by an emulsifying system.

In the framework of the present invention, the term "associative polymer" means a hydrophilic polymer that is capable of reversibly combining in an aqueous medium with itself or with other molecules. Their chemical structure more preferably contains at least one hydrophilic part and at least one hydrophobic part.

The term “hydrophobic group” is intended to mean a radical or polymer containing a saturated or unsaturated and linear or branched hydrocarbon chain. When the hydrophobic group denotes a hydrocarbon radical, it contains at least 10 carbon atoms, preferably 10-30 carbon atoms, in particular 12-30 carbon atoms and more preferably 18-30 carbon atoms. Preferably, the hydrocarbon group is obtained from a compound with one functional group.

As an example, the hydrophobic group can be derived from a fatty alcohol, such as stearyl alcohol, dodecyl alcohol or decyl alcohol, or from a polyalkylated fatty alcohol, such as Steareth-100. It may also denote a hydrocarbon polymer, for example, polybutadiene.

A mixture of alkylpolyglucoside / fatty alcohol

Compositions in accordance with the present invention contain at least one mixture:

a) at least one alkylpolyglycoside, the alkyl chain of which is linear or branched and contains 12-22 carbon atoms and

b) at least one linear or branched fatty alcohol having 12-22 carbon atoms.

In the composition, this mixture behaves as an emulsifying agent.

In the framework of the present invention, the term "alkylpolyglycoside" means alkyl monosaccharide (degree of polymerization 1) or alkylpolyglycoside (degree of polymerization more than 1).

Preferably, the fatty alcohol / alkyl polyglycoside emulsifying mixture comprises:

(a) 5-60% by weight of alkyl polyglycoside (s);

(b) 95-40 wt.% fatty (s) alcohol (s) of the total mass of the specified emulsifying mixture.

Alkyl polyglycosides can be used individually or as mixtures of several alkyl polyglycosides. They basically correspond to the following structure:

R (O) (G) _x

in which the substituent R is a linear or branched C ₁₂ -C ₂₂ alkyl substituent, G is a saccharide residue and x is in the range of 1-5, preferably 1.05-2.5 and more preferably 1.1-2.

The saccharide residue may be selected from glucose, dextrose, sucrose, fructose, galactose, maltose, maltotriose, lactose, cellobiose, mannose, ribose, dextran, tallose, allose, xylose, levoglucosane, cellulose, and starch. More preferably, the saccharide residue is glucose.

It should also be noted that each unit of the polysaccharide part of the alkylpolyglycoside may be in the form of the α or β isomer, in L or D form, and the configuration of the saccharide residue may be of furanose or pyranose type.

Of course, it is possible to use mixtures of alkyl polysaccharides, which may differ from each other in the nature of the attached alkyl unit and / or the nature of the carrier polysaccharide chain.

As regards fatty alcohols, which must be used alone or in mixtures, in combination with alkyl polysaccharides in emulsifying mixtures in accordance with the present invention, they may be linear or branched synthetic fatty alcohols or otherwise of natural origin, for example, alcohols derived from plant material (coconut, palm kernel, palm, etc.) or animal material (fat, etc.). Of course, other long-chain alcohols can also be used, for example, ethereal or Herbet alcohols. Finally, certain fractions of alcohols of different lengths of natural origin can also be used, for example, coconut (C ₁₂ -C ₁₆ ) or tall (C ₁₆ -C ₁₈ ) or compounds, such as diols or cholesterol.

In accordance with a preferred embodiment of the present invention, the used (s) fatty alcohol (s) is selected from those containing 12-22 carbon atoms and even more preferably 12-18 carbon atoms.

As specific examples of fatty alcohols that can be used in the context of the present invention, mention may be made, in particular, of lauryl alcohol, cetyl alcohol, myristic alcohol, stearyl alcohol, isostearyl alcohol, palmitic alcohol, oleic alcohol, behenyl alcohol and arachidyl alcohol, which can thus be taken on their own or in the form of mixtures.

In addition, it is particularly advantageous, as stated in the present invention, to use together a fatty alcohol and an alkyl polysaccharide, the alkyl portion of which is identical to the alkyl portion of the selected fatty alcohol.

Fatty alcohol / alkyl polyglycoside emulsifying mixtures, as defined above, are known per se. They are described in patent applications WO92 / 06778, WO95 / 13863 and WO98 / 47610 and are obtained in accordance with the methods of preparation indicated in these documents.

Among the particularly preferred fatty alcohol / alkyl polyglycoside mixtures, mention may be made of products sold by the company SEPPIC under the name Montanov®, such as the following mixtures:

Cetylstearyl alcohol / cocoylglucoside - Montanov 82®

Arachidyl alcohol and behenyl alcohol / arachidyl glucoside - Montanov 802®

Myristyl alcohol / myristyl glucoside - Montanov 14®

Cetyl Stearyl Alcohol / Cetyl Stearyl Glucoside - Montanov 68®

C ₁₄ -C ₂₂ alcohols / C ₁₂ -C ₂₀ -alkyl glucoside - Montanov L®

Cocoyl alcohol / cocoylglucoside - Montanov S®

Isostearyl alcohol / isostearyl glucoside - Montanov WO 18®

Preferred are fatty alcohol / alkyl polyglycoside mixtures selected from the following:

Cetyl stearyl alcohol / cetyl stearyl glucoside;

C ₁₄ -C ₂₂ alcohols / C ₁₂ -C ₂₀ -alkyl glucoside and even more preferably a mixture of C ₁₄ -C ₂₂ alcohols / C ₁₂ -C ₂₀ -alkyl glucoside, such as the commercial product C ₁₄ -C ₂₂ alcohol / C ₁₂ -C ₂₀ -alkylglucoside - Montanov L®.

The fatty alcohol / alkyl polyglycoside mixture is preferably present in the emulsions in accordance with the present invention in concentrations in the range of 0.5-15% by weight and more preferably 1-10% by weight of the total weight of the composition.

Non-ionic associative copolymer of polyurethane and polyester

Non-ionic polyether-polyurethane in accordance with the present invention usually contain in their chain both hydrophilic blocks, usually of polyoxyethylene nature, and hydrophobic blocks, which can only be aliphatic sequences and / or cycloaliphatic and / or aromatic sequences.

Preferably, these polyether-polyurethanes contain at least two hydrocarbon-based lipophilic chains containing 6-30 carbon atoms separated by a hydrophilic block, the hydrocarbon chains can be side chains or chains at the end of a hydrophilic block. In particular, one or more side chains may be present. In addition, the polymer may contain a hydrocarbon-based chain at one end or both ends of the hydrophilic block.

Polyurethane-polyesters can be multi-block, in particular in three-block form. Hydrophobic blocks can be at each end of the chain (for example, a three-block copolymer having a hydrophilic central block) or distributed both at the ends and in the chain (for example, a multi-block copolymer). These polymers can be grafted polymers or star polymers.

The fatty chain nonionic polyurethane-polyesters can be triblock copolymers, the hydrophilic block of which is a polyoxyethylene chain containing 50-1000 oxyethylene groups.

Non-ionic polyether polyurethanes contain a urethane bond between hydrophilic blocks, hence the name.

In addition, among non-ionic copolymers of polyester and polyurethane containing a hydrophobic chain, there are also those in which the hydrophilic blocks are connected to the hydrophobic blocks through other chemical bonds.

As examples of non-ionic copolymers of polyester and polyurethane containing a hydrophobic chain, which can be used in the present invention, Rheolate 205® containing urea functional group sold by Rheox or Rheolate® 208, 204 or 212, as well as Acrysol can also be used. RM 184®.

The Elfacos T210® product containing the C ₁₂ -C ₁₄ alkyl chain and the Elfacos T212® product containing the C ₁₈ alkyl chain from Akzo may also be mentioned.

The DW 1206B® product from Rohm & Haas can also be used, containing a C ₂₀ alkyl chain and a urethane bond sold with a dry matter content of 20% in water.

Solutions or dispersions of these polymers can also be used, in particular in water or in an aqueous alcoholic medium. Examples of such polymers that may be mentioned are Rheolate® 255, Rheolate® 278 and Rheolate® 244 sold by the company Rheox. The DW 1206F and DW 1206J products sold by Röhm & Haas can also be used.

Polyurethane-polyesters, which can be used in accordance with the present invention, can also be selected from those described in the article G. Fonnum, J. Bakke and Fk. Hansen - Colloid Polym. Sci., 271, 380-389 (1993).

In accordance with a particular embodiment of the present invention, polyether-polyurethane will be used, which can be obtained by polycondensation of at least three compounds including (i) at least one polyethylene glycol containing 150-180 moles of ethylene oxide, (ii) stearyl alcohol or decyl alcohol and (iii) at least one diisocyanate.

Such polyether polyurethanes are sold in particular by Rohm & Haas under the names Aculyn 46® and Aculyn 44®.

Aculyn 46®, having the name INCI: PEG-150 / Stearyl Alcohol / SMDI Copolymer, is a product of polycondensation of polyethylene glycol containing 150 or 180 moles of ethylene oxide, stearyl alcohol and methylenebis (4-cyclohexyl isocyanate) (SMDI) at a concentration of 15% by weight in maltodextrin matrix (4%) and water (81%).

Aculyn 44® (PEG-150 / Decyl Alcohol / SMDI Copolymer) is a polycondensation product of polyethylene glycol containing 150 or 180 moles of ethylene oxide, decyl alcohol and methylene bis (4-cyclohexyl isocyanate) (SMDI) at a concentration of 35% by weight in a mixture of propylene glycol (39 %) and water (26%).

In accordance with a particularly preferred embodiment of the present invention, polyester-polyurethane will be used, which can be obtained by polycondensation of at least three compounds, including (i) at least one polyethylene glycol containing 150-180 moles of ethylene oxide, (ii) polyoxyethylene stearyl alcohol containing 100 moles of ethylene oxide and (iii) diisocyanate.

Such polyether-polyurethanes are sold, inter alia, by Sasol Servo BV under the name SER-AD FX 1100®, which is a product of the polycondensation of polyethylene glycol containing 136 moles of ethylene oxide, stearyl alcohol polyoxyethylenated with 100 moles of ethylene oxide, and hexamethylene diisocyanate (GDI) and weight average weighing 30,000 (INCI: PEG-136 / Steareth-100l / SMDI Copolymer).

The amount of associative polyester-polyurethane as active ingredient may be, for example, 0.1-10% by weight, preferably 0.25-8% by weight and even more preferably 1.5-5% by weight of the total weight of the composition.

Deodorizing active agents

Among the deodorizing active agents that can be used in accordance with the present invention, antiperspirant active agents can be mentioned.

The term "antiperspirant active agent" is intended to refer to an active agent, which itself has the effect of reducing perspiration, reducing the sensation of moisture on the skin associated with human sweat, and masking human sweat.

Among the antiperspirant active agents, salts or complexes of aluminum and / or zirconium may be mentioned, preferably selected from aluminum hydroxohalides; mixed aluminum and zirconium hydroxyhalides, complexes of zirconium hydroxochloride and aluminum hydroxochloride with or without an amino acid, such as described in US Pat. No. 3,792,068.

Among aluminum salts, mention may be made of aluminum hydroxochloride in activated or non-activated form, aluminum hydroxochloride complex, aluminum hydroxochloride complex and polyethylene glycol complex, aluminum hydroxochloride complex and propylene glycol complex, aluminum dihydroxochloride complex and aluminum polyethylene glycol complex, aluminum dihydroxochloride complex, and the same time, I also use the current patterns, aluminum patterns and aluminum patterns, aluminum patterns, aluminum dihydroxychloride, aluminum dihydroxochloride complex, aluminum dihydroxochloride, aluminum dihydroxochloride, aluminum dihydroxychloride and polyethylene glycol , aluminum sesquichlorohydrate complex and polyethylene glycol, aluminum sesquichlorohydrate complex and propyl nglikolya, aluminum sulfate, aluminum lactate buferrizovanny sodium.

Among the mixed aluminum and zirconium salts, there can be mentioned, in particular, zirconium-aluminum octahydroxochloride, zirconium-aluminum pentahydroxochloride, aluminum-zirconium tetrahydroxochloride and aluminum-zirconium trihydroxochloride.

Zirconium hydroxochloride and aluminum hydroxochloride complexes with an amino acid are commonly known as ZAG (when the amino acid is glycine). Among these products, mention may be made of aluminum-zirconium and glycine octagctroxochloride complexes, aluminum-zirconium and glycine pentahydroxochloride complexes, aluminum-zirconium and glycine tetrahydroxochloride complexes and aluminum-zirconium and glycine trihydroxochloride complexes.

Aluminum sesquichlorohydrate, in particular, is sold under the trade name Reach 301® by Summitreheis.

Among the complexes of aluminum and zirconium, mention may be made of complexes of zirconium hydroxochloride and aluminum hydroxochloride with an amino acid, such as glycine, with the name INCI: Aluminum Zirconium Tetrachlorohydrex Gly, for example, the product sold under the name Reach AZP-908-SUF® by Summitreheis.

In particular, aluminum hydroxochloride sold under the trade names Locron S FLA®, Locron P and Locron L.ZA by Clariant will be used; under the trade names 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% ® by Industria Quimica Del Centro; or Clorohidroxido Aluminio SO A 50% ® by Finquimica.

As another active agent that can reduce the feeling of moisture on the skin associated with human sweat, there may be mentioned perlite foam particles, such as particles resulting from the foaming process described in US Patent 5,002,698.

Perlites that can be used in accordance with the present invention, as a rule, are aluminosilicates of volcanic origin and have the composition:

70.0-75.0 wt.% Silicon dioxide SiO ₂

12.0-15.0 wt.% Alumina Al ₂ O ₃

3.0-5.0% sodium oxide Na ₂ O

3.0-5.0% of 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

0.05-0.15% titanium oxide TiO ₂ .

Preferably the perlite particles used will be crushed; in this case, they are known as foamed crushed perlite (VIP). They preferably have a particle size determined by the median diameter D50 in the range of 0.5-50 microns and preferably 0.5-40 microns.

Preferably used perlite particles have a free bulk density at 25 ° C in the range of 10-400 kg / m ³ (DIN 53468 standard) and preferably 10-300 kg / m ³ .

Preferably, the particles of expanded perlite in accordance with the present invention have a water absorption capacity measured at the wet point in the range of 200-1500% and preferably 250-800%.

The wet point corresponds to the amount of water that must be added to 1 g of the particle in order to obtain a homogeneous paste. This method derives directly from the oil absorption method applied to solvents. Measurements are carried out in the same way using the wetting point and the point of runoff, which have, respectively, the following definitions:

wet point: mass, expressed in grams per 100 g of product, corresponding to obtaining a homogeneous paste by adding a solvent to the powder;

Trickling point: the mass, expressed in grams per 100 g of product, above which the amount of solvent is greater than the capacity of the powder to hold this solvent. This is reflected in the production of a more or less homogeneous mixture, which is steamed on a glass plate.

Wet point and runoff point are measured according to the following protocol:

Water absorption measurement protocol

1) Used equipment

Glass plate (25 × 25 mm)

Spatula (wooden handle and metal part, 15 × 2.7 mm)

Silk bristle brush

Libra

2) Procedure

The glass plate is placed on the scale and 1 g of perlite particles is weighed. A glass containing the solvent and a pipette for sampling the liquid are placed on the scale. The solvent is gradually added to the powder, and all this is mixed regularly (every 3-4 drops) with a spatula.

Marked mass of solvent required to reach the point of wetting. An additional amount of solvent is added and a mass is noted, which makes it possible to reach the drain point. The average value of the three trials is determined.

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

Mention may also be made of talcs or magnesium silicates, such as those sold under the name Luzenac 15 M00® by the company Luzenac.

b) Bacteriostatic agents or bactericidal agents

Deodorizing active agents can be bacteriostatic agents or bactericides that act on microorganisms that cause axillary odor, such as 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-trimethyldodec- 2,5,10-trienol (®Farnesol); quaternary ammonium salts such as cetyltrimethylammonium salts, cetylpyridinium salts, DPTA (1,3-diaminopropane tetraacetic acid), 1,2-decandiol (Symclariol from Symrise); glycerol derivatives, for example, caprylic / capric glycerides (Capmul MCM® from Abitec), glyceryl caprylate or caprate (Dermosoft GMCY® and Dermosoft GMC®, respectively, from Straetmans), polyglyceryl-2 caprate (Dermosoft DGMC® from Straetmans), and bioguns, and there will be, and there will be a non-iguid, and there will be a non-iguid, and polygraphic-2 caprate (Steposmans DGMC® from Straetmans); for example, polyhexamethylene biguanide salts; 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- octyl salicylic acid.

c) odor absorbers

Deodorizing active agents can be odor absorbers such as zinc ricinoleates or sodium bicarbonate; metallic or silver or silver-free zeolites, or cyclodextrins and their derivatives. They can also be chelating agents such as Dissolvine GL-47-S® from Akzo Nobel, EDTA and DPTA. They can also be a polyol, such as glycerin or 1,3-propandiol (Zemea Propanediol, sold by Dupont Tate and Lyle Bioproducts).

d) Enzyme inhibitors

Deodorizing active agents can also be enzyme inhibitors, such as triethyl citrate; or alum.

In the case of incompatibility or for their stabilization, some of the active agents mentioned above, for example, can be enclosed in balls, especially ionic or non-ionic vesicles and / or nanoparticles (nanocapsules and / or nanospheres).

Deodorizing active agents may be present in the composition in accordance with the present invention in an amount of 0.001-40m ac.% Of the total weight of the composition and preferably in an amount of 0.1-25 wt.%.

Oil phase

Compositions in accordance with the present invention contain at least one water-immiscible organic liquid phase, known as the oil phase. This phase usually contains one or more hydrophobic compounds that make the specified phase is not miscible with water. This phase is liquid at ambient temperature (20-25 ° C).

Preferably, the oil phase is present in concentrations in the range of 1-160 wt.% And more preferably 4-40 wt.% Of the total weight of the composition.

The oil phase of the emulsions in accordance with the present invention contains at least one volatile hydrocarbon-based oil.

The volatile hydrocarbon-based oil is chosen in particular from hydrocarbon-based oils containing 8-16 carbon atoms, and especially C ₈ -C ₁₆ isoalkanes (also known as isoparaffins), for example, isododecane (also known as 2,2,4 , 4,6-pentamethylheptane), isodecane and isohexadecane, for example, oils sold under the trade names Isopar or Permethyl, branched C ₈ -C ₁₆ esters and isohexyl neopentanoate and mixtures thereof. Other volatile hydrocarbon-based oils can also be used, such as petroleum distillates, particularly those sold under the name Shell Solt by Shell; and volatile linear alkanes, such as those described in DE10 2008 012 457 by Cognis.

Preferably, the volatile hydrocarbon oil is selected from C ₈ -C ₁₆ isoalkanes and, in particular, from isododecane, isodecane, isohexadecane and mixtures thereof, and even more preferably isododecane.

Preferably, the volatile (s) hydrocarbon-based oil (a) is present (s) in concentrations in the range of 0.1-100 wt.% And more preferably 1-80 wt.% Of the total mass of the oil phase.

Preferably, the volatile (s) oil (a) on a hydrocarbon basis is present (s) in concentrations in the range of 0.1-30% and more preferably 0.5-15% by weight of the total composition.

In accordance with one particular embodiment of the present invention, the oil phase of the emulsions in accordance with the present invention contains at least one additional oil.

Additional oil can be selected from mineral, vegetable, synthetic oils; in particular, non-volatile hydrocarbon-based oils and / or non-volatile or volatile silicones, volatile or non-volatile fluorinated oils, and mixtures thereof.

Preferably, the additional oil (s) is present (s) in concentrations in the range of 0.1-99 wt.% And more preferably 0.1-90 wt.% Of the total mass of the oil phase.

The term "non-volatile oil" means an oil that remains on the skin or keratin fibers at ambient temperature and atmospheric pressure for at least several hours and which, in particular, has a saturated vapor pressure less than 10 ^-3 mm Hg. (0.13 Pa).

Volatile silicones can be selected from volatile linear or cyclic silicone oils, in particular, with a viscosity of 8 centistokes (8 × 10 ^-6 m ² / s) and, in particular, containing 2-7 silicon atoms, these silicones, optionally containing alkyl or alkoxy groups containing 1-10 carbon atoms. As a volunteer, it may be a

Volatile linear alkyltrisiloxane oils of general formula (I) may also be mentioned:

where R represents an alkyl group containing 2-4 carbon atoms, one or more hydrogen atoms of which may be substituted by a fluorine or chlorine atom.

Among the oils of general formula (I), mention may be made of:

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 the oils of formula (I), for which R is, respectively, a butyl group, a propyl group or an ethyl group.

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

- hydrocarbon-based, vegetable oils, such as liquid fatty acid triglycerides containing 4-24 carbon atoms, such as caprylic / capric acid triglycerides, such as those sold by Stéarineries Dubois, or sold under the names Miglyol 810, 812, and 818 by Dynamit Nobel ;

- linear or branched hydrocarbons of mineral or synthetic origin, such as liquid paraffins and their derivatives, petrolatum, polydecenes, polybutenes, hydrogenated polyisobutenes, such as Parleam or squalene;

- synthetic ethers having 10 to 40 carbon atoms, such as propylene glycols and their derivatives, such as PPG14 butyl ether;

- synthetic esters, especially fatty acids, isononyl isononanoate, isopropyl myristate, isopropyl palmitate, C ₁₂ -C ₁₅ benzoates of alcohols, hexyl laurate, diisopropyl adipate, 2-ethylhexyl palmitate, 2-octyldodecyl stearate, 2-octyldodecyl altideratel, and 2-octyldodecyl stearate, 2-octyldodecyl stearate, 2-octyldodecyltelerate, 2-octyldodecyl stearate, 2-octyldodecylteatel 2

- fatty alcohols, which are liquid at ambient temperature, containing a branched and / or unsaturated carbon chain containing 12-26 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;

- carbonates;

- acetates;

- citrates;

- fluorine-containing oils, which are optionally partially based on hydrocarbons and / or silicones, for example fluorosilicone oils, fluoropolyethers and fluorosilicones, as described in document EP-A-847752;

- silicone oils, for example, non-volatile polydimethylsiloxanes (PDMS); phenylsilicones, for example phenyltrimethicones, phenyldimethicones, phenyltrimethylsiloxydiphenylsiloxanes, diphenyldimethicones, diphenylmethyldiphenyltrisiloxanes, 2-phenylethyltrimethylsiloxysilicates and

- mixtures thereof.

Preferably, at least one non-volatile silicone oil and more preferably polydimethylsiloxane (INCI name: Dimethicone) are used.

Preferably, the non-volatile (s) silicone oil (s) (s) or additives are present in concentrations in the range of 0.1-99 wt.% And more preferably 0.1-90 wt.% Of the total mass of the oil phase.

Water phase

Preferably, the aqueous phase is present in concentrations in the range of 1-95 wt.% And more preferably 50-80 wt.% Of the total weight of the composition.

The aqueous phase of these compositions contains water and may contain other water-soluble or water-miscible solvents. Water-soluble or water-miscible solvents have a short chain, for example, C ₁ -C ₄ monohydric alcohols, such as ethanol or isopropanol; diols or polyols, for example ethylene glycol, 1,2-propylene glycol, 1,3-butylene glycol, hexylene glycol, diethylene glycol, dipropylene glycol, 2-ethoxyethanol, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether and sorbitol. More preferably, propylene glycol and glycerin, propane-1,3-diol are used.

In accordance with one particular embodiment of the present invention, the emulsion comprises:

a) at least one continuous aqueous phase; and

b) at least one oil phase dispersed in said aqueous phase and containing at least one C ₈ -C ₁₆ isoalkane; and

C) at least one mixture of C ₁₄ -C ₂₂ alcohol / C ₁₂ -C ₂₀ alkyl glucoside; and

d) at least one polycondensation product of polyethylene glycol containing 136 moles of ethylene oxide, stearyl alcohol polyoxyethylated with 100 moles of ethylene oxide and hexamethylene diisocyanate (GDI) with a weight-average molecular weight of 30,000 (name INCI: PEG-136 / Steareth-100l / SMDI red eth / glycII red glyceride).

d) at least one salt or complex of aluminum and / or zirconium, in particular aluminum hydroxochloride.

Supplements

Cosmetic compositions in accordance with the present invention may also contain cosmetic auxiliary substances selected from emollients, antioxidants, fogging agents, stabilizers, moisturizers, vitamins, bactericides, preservatives, polymers, flavoring agents, structuring agents for the fatty phase, in particular, selected from waxes paste-forming compounds, mineral or organic lipophilic gelling agents; organic or mineral fillers; thickeners or suspending agents, or any other ingredients commonly used in cosmetics for this type of use.

Of course, the person skilled in the art will take care to select this or these optional additional compounds, so that the advantages inherent in the cosmetic composition in accordance with the present invention do not suffer or are not significantly affected by the intended mixing.

Wax (s)

The wax is usually a lipophilic compound that is solid at room temperature (25 ° C), with a reversible change in the solid / liquid state, having a melting point greater than or equal to 30 ° C, which can be up to 200 ° C and, in particular, to 120 ° C.

In particular, waxes that are suitable for the present invention may have a melting point greater than or equal to 45 ° C and, in particular, greater than or equal to 55 ° C.

In the context of the present invention, the melting point corresponds to the temperature of the endothermic peak itself observed during thermal analysis (DSC), as described in ISO 11357-3; 1999. The wax melting point can be measured using a differential scanning calorimeter (DSC), for example, a calorimeter sold under the name MDSC 2920 by TA Instruments.

The measurement protocol is as follows:

A sample of 5 mg of wax placed in a crucible is subjected to a first temperature increase from -20 to 100 ° C with a heating rate of 10 ° C / min, then cooled from 100 ° C to -20 ° C with a cooling rate of 10 ° C / min and, finally, it is subjected to a secondary temperature increase from -20 to 100 ° C with a heating rate of 5 ° C / min. During the second temperature increase, the change in the difference in energy absorbed by the empty crucible and the crucible containing the wax sample is measured, depending on the temperature. The melting point of the compound is the temperature value corresponding to the peak of the curve representing the change in the difference in absorbed energy as a function of temperature.

Waxes that can be used in compositions according to the present invention are selected from waxes that are solid at room temperature, of animal, vegetable, mineral or synthetic origin, and mixtures thereof.

As examples of waxes suitable for the present invention, it is possible to mention, in particular, hydrocarbon waxes, such as beeswax, lanolin wax, Chinese insect waxes, rice bran wax, carnauba wax, candelilla wax, oriuri-palm wax, esparto wax, berry wax, shellac wax, japanese wax and sumach wax; mountain wax, orange wax and lemon wax, refined sunflower wax sold under the name Sunflower Wax from Koster Keunen, microcrystalline waxes, paraffins and ozocerite; polyethylene waxes, waxes obtained by the Fischer-Tropsch synthesis, and wax-like copolymers, as well as their esters.

Waxes obtained by catalytic hydrogenation of animal or vegetable oils containing linear or branched C ₈ -C ₃₂ chains may also be mentioned. Among these waxes, in particular, isomerized jojoba oil may be mentioned, such as trans-isomerized partially hydrogenated jojoba oil, produced or 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 by Heterene under the name Hest 2T-4S®.

Silicone waxes (C _30-45 alkyl dimethicone) and fluorinated waxes may also be mentioned.

Waxes obtained by hydrogenating castor oil esterified with cetyl alcohol, sold under the names Phytowax ricin 16L64® and 22L73® by the company Sophim, can also be used. Such waxes are described in patent application FR-A-2 792 190.

As the wax, C ₂₀ -C ₄₀ -alkyl (hydroxystearyloxy) stearate (alkyl group containing 20-40 carbon atoms) can be used alone or as a mixture.

Such waxes are sold, inter alia, under the names Kester Wax K 82 P®, Hydroxypolyester K 82 P® and Kester Wax K 80 P® by the company Koster Keunen.

As microweaves that can be used in the compositions according to the present invention, in particular, carnauba micro socks, such as the product sold by Micro Powers under the name MicroCare 350®, synthetic microwax, such as the product sold under the name MicroEase can be mentioned. 114S® by Micro Powders, microvills composed of a mixture of carnauba wax and polyethylene wax, such as products sold under the names Micro Care 300® and 310® by Micro Powders, microvoscs consisting of a mixture of carnauba wax synthetic waxes, such as the product sold under the Micro Care 325® name by Micro Powders, polyethylene microwax, such as the products sold under the names Micropoly 200®, 220®, 220L®, and 250S® by Micro Powders, commercial Products Performalene 400 Polyethylene® and Performalene 500-L Polyethylene® from New Phase Technologies, Performalene Polyethylene 655 or paraffin waxes, in particular wax, which has the name INCI Microcrystalline Wax and Synthetic Wax and sold under the trade name Microlease by Sochibo; polytetrafluoroethylene mikrovoski, such as sold under the names Microslip 519® and 519 L® by Micro Powders.

Pasty compounds

In the framework of the present invention, the term "paste-like compound" is intended to refer to a lipophilic fatty compound that exhibits a reversible change in the solid / liquid state, which exhibits an anisotropic arrangement of crystals in the solid state and which contains a liquid fraction and a solid fraction at a temperature of 23 ° C.

The pasty compound is preferably selected from synthetic compounds and compounds of plant origin. Pasty compound can be obtained by synthesis from the original products of plant origin.

The pasty compound may be advantageously selected from:

- lanolin and its derivatives,

- polymeric or polimernye silicon compounds,

- polymeric or non-polymeric fluorinated compounds,

- vinyl polymers, in particular:

- olefinic homopolymers,

- olefin copolymers,

- hydrogenated homopolymers and copolymers of dienes,

- linear or branched oligomers, homopolymers or copolymers of alkyl methacrylates, preferably containing a C ₈ -C ₃₀ alkyl group,

- homo- and copolymer oligomers of vinyl ethers containing C ₈ -C ₃₀ alkyl groups, and

- copolymers of oligomers and homopolymers of vinyl ethers containing C ₈ -C ₃₀ alkyl groups,

- liposoluble polyesters obtained by polyesterification between one or more C ₂ -C ₁₀₀ and preferably C ₂ -C ₅₀ diols,

- esters

- their mixtures.

Inorganic lipophilic gelling agents

Mineral lipophilic gelling agents that may be mentioned include optionally modified clays, for example hectorites modified with C ₁₀ -C ₂₂ ammonium chloride, for example hectorite, chloride distearyldimethylammonium chloride, for example, a product marketed under the name Bentone 38V® by the company Elementis.

Colloidal silicon dioxide with a surface, optionally hydrophobically treated, whose particle size is less than 1 micron, can also be mentioned. This is possible because it is chemically possible to modify the surface of silicon dioxide by a chemical reaction, leading to a decrease in the number of silanol groups present on the surface of silicon dioxide. In particular, it is possible to replace silanol groups with hydrophobic groups: this results in hydrophobic silicon dioxide. Hydrophobic groups can be trimethylsiloxyl groups, which are obtained, in particular, by treating colloidal silicon dioxide in the presence of hexamethyldisilazane. The silica treated in this way is called “silica silylate” in accordance with CTFA (8th edition, 2000). It is sold, for example, under the name Aerosil R812® by the company Degussa, Cab-O-Sil TS-530® by the company Cabot. Dimethylsilyloxyl or polydimethylsiloxane groups, which are obtained, in particular, by treating colloidal silicon dioxide in the presence of polydimethylsiloxane or dimethyldichlorosilane. The silica treated in this way is known as “silica dimethyl silylate” in accordance with CTFA (8th edition, 2000). It is sold, for example, under the name Aerosil R972® and Aerosil R974® by the company Degussa and Cab-O-Sil TS-610® and Cab-O-Sil TS-720® by the company Cabot.

Hydrophobic colloidal silicon dioxide, in particular, has a particle size from nanometric to micrometric, for example, in the range of about 5-200 nm.

Organic lipophilic gelling agents

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

Among the lipophilic gelling agents that can be used in the compositions in accordance with the present invention, the esters of dextrin and fatty acids, such as palmitins of dextrin, in particular sold under the names Rheopearl TL® or Rheopearl KL® by Chiba Flour can also be mentioned.

Polyorganosiloxane-type silicone polyamides such as those described in US-A-5,874,069, US-A-5 919 441, US-A-6 051 216 and US-A-5 981 680 can also be used.

Thickeners and suspending agents

Thickeners can be selected from carboxyvinyl polymers, such as carbopol (carbomers) and pemunes (acrylate / C ₁₀ -C ₃₀ alkyl acrylate copolymer); polyacrylamides, such as, for example, crosslinked copolymers sold under the names Sepigel 305 (CTFA name: polyacrylamide / C _13-14 isoparaffin / laureth 7) or Simulgel 600 (CTFA name: acrylamide / sodium acryloyldimethyltaurate copolymer / isohehexadecane / polysorbate ; optionally crosslinked and / or neutralized polymers and copolymers of 2-acrylamido-2-methylpropanesulfonic acid, such as poly (2-acrylamido-2-methylpropanesulfonic acid), manufactured by Hoechst under the trade name Hostacerin AMPS (named CTFA: ammonium polyacryloyldimethyltamerate) orchemic). sold by Seppic (CTFA name: sodium polyacryloyldimethyltaurate / polysorbate 80 / sorbitan oleate); copolymers of 2-acrylamido-2-methylpropanesulfonic acid and hydroxyethyl acrylate, such as Simulgel NS and Sepinov EMT 10, sold by Seppic; cellulose derivatives such as hydroxyethyl cellulose or cetyl hydroxy ethyl cellulose; polysaccharides and, in particular, gums, such as xanthan gum or hydroxypropylguar gums; or silica, such as, for example, Bentone Gel MIO, sold by NL Industries, or Veegum Ultra, sold by Polyplastic.

Thickeners can also be cationic, such as, for example, Polyquaternium-37, sold under the name Salcare SC95 (Polyquaternium-37 (and) Mineral Oil (and) PPG-1 Trideceth-6) or Salcare SC96 (Polyquaternium-37 (and) Propylene Glycol Dicaprylate / Dicaprate (and) PPG-1 Trideceth-6) or other crosslinked cationic polymers, such as, for example, polymers that have the name CTFA Ethyl Acrylate / Dimethylaminoethyl Methacrylate Cationic Copolymer In Emulsion.

Organic powder

In accordance with one particular embodiment of the present invention, the compositions in accordance with the present invention further comprise an organic powder.

In this patent application, the term "organic powder" means any solid that is insoluble in medium at room temperature (25 ° C).

As organic powders that can be used in the composition of the present invention, examples that may be mentioned include polyamide particles, in particular those sold under the names Orgasol by the company Atochem; 6.6 nylon fibers, in particular polyamide fibers sold by Etablissements P Bonte under the name Polyamide 0.9 Dtex 0.3 mm (INCI: Nylon 6.6 or Polyamide 6.6), having an average diameter of 6 microns, a mass of about 0.9 dtex and a length of 0.3-1.5 mm; polyethylene powders; acrylic copolymer-based microspheres such as ethylene glycol dimethacrylate and lauryl methacrylate copolymers sold under the name Polytrap by Dow Corning; polymethyl methacrylate microspheres marketed under the name Microsphere M-100 Matsumoto or under the name Covabead LH85 by the company Wackherr; hollow polymethyl methacrylate microspheres (particle size 6.5-10.5 μm) sold by Ganz Chemical under the name Ganzpearl GMP 0800; methyl methacrylate / ethylene glycol dimethacrylate copolymer beads (size 6.5-10.5 μm) sold by Ganz Chemical under the name Ganzpearl GMP 0820 or Microsponge 5640 by Amcol Health & Beauty Solutions; ethylene / acrylate copolymer powders, such as those sold under the name Flobeads by Sumitomo Seika Chemicals; foamed powders, such as hollow microspheres and especially microspheres formed from terpolymer of vinylidene chloride, acrylonitrile and methacrylate and sold under the name Expancel by Kemanord Plast under the designation 551 DE 12 (particle size about 12 microns and weight per unit volume of 40 kg / m ³ ), 551 DE 20 (particle size about 30 microns and mass per unit volume 65 kg / m ³ ), 551 DE 50 (particle size about 40 microns) or microspheres sold under the name Micropearl F 80 ED by the company Matsumoto; powders of natural organic materials, such as starch powders, especially crosslinked or unstitched corn, wheat or rice starch, such as starch powders, cross-linked with octenyl anhydride, sold under the name Dry-Flo by National Starch; Silicone resin microbeads, such as those sold under the Toshibar Silicone name Tospearl, especially Tospearl 240; amino acid powders such as lauryl lysine powder sold under the name Amihope LL-11 by the company Ajinomoto; wax microdispersion particles, which preferably have an average size of less than 1 micron and especially in the range of 0.02-1 micron and which are mainly composed of wax or mixture of waxes, such as products sold under the name Aquacer by Byk Cera and especially: Aquacer 520 ( a mixture of synthetic and natural waxes), Aquacer 514 or 513 (polyethylene wax) or Aquacer 511 (polymeric wax), or such as the products sold under the name Jonwax 120 by the company Johnson Polymer (a mixture of plastic and paraffin waxes) by the company Ceraflour 961 by the company Byk Cera (micronized modified polyethylene wax); and mixtures thereof.

Suspending Agents

To improve the homogeneity of the product, one or more suspending agents can be used, which are preferably selected from hydrophobic modified montmorillonite clays, such as hydrophobic modified bentonites or hectorites. Mention may be made, for example, of Stearalkonium Bentonite (CTFA name) (a reaction product of bentonite and quaternary ammonium steralkyl chloride), such as a commercial product sold under the name Tixogel MP 250 by Sud Chemie Rheologicals, United Catalysts Inc., or Disteardimonium Hectorite ( CTFA name) (product of the reaction of hectorite and distearyldiamonium chloride), sold under the name Bentone 38 or Bentone Gel by the company Elementis Specialties.

Other suspending agents may be used in this case in hydrophilic (aqueous and / or ethanol) media. They can be derived from cellulose, xanthan gum, guar gum, starch, carob beans or agar-agar.

The amounts of these various components, which may be present in a cosmetic composition in accordance with the present invention, are commonly used in deodorant compositions.

The amounts of these various components, which may be present in a cosmetic composition in accordance with the present invention, are the amounts commonly used in deodorant compositions.

Forms of delivery

The composition in accordance with the present invention can be presented in the form of a cream of varying thickness, distributed in a tube or in a grid; in roller form (packed in ball form) and contain for this purpose ingredients commonly used in this type of product and well known to a person skilled in the art. Preferably the composition is in roll form.

Emulsions in accordance with the present invention can be obtained in accordance with standard techniques used to obtain oil-in-water emulsions. They can be obtained in accordance with the process, containing at least the following stages:

1) obtaining the oil phase with volatile oil-based hydrocarbon; a mixture containing at least one alkylpolyglycoside, the alkyl chain of which is linear or branched and contains 12-22 carbon atoms, and at least one linear or branched fatty alcohol having 12-22 carbon atoms, and heated to a temperature greater than or equal to 70 ° C (for example, 80 ° C); and

2) obtaining the aqueous phase with polyester-polyurethane and heating to the same temperature as in stage 1);

3) adding the mixture obtained in stage 1) to the mixture obtained in stage 2) with stirring, then everything is cooled to a temperature less than or equal to 50 ° C (for example, 40 ° C);

4) adding a deodorizing active agent with stirring, then other ingredients present in the composition at room temperature (20-25 ° C).

The examples below illustrate the present invention without limiting its scope. Values are expressed in mass percent of the total weight of the composition.

Examples: roller forms

Components Example 1 (invention) Example 2 (beyond the scope of the invention) Aluminum Hydroxychloride (CLURON®50%) 20 20 Coal powder (s) polyglyceryl-10 stearate (s) polyglyceryl-10 myristate (s) polyglycerol-10 (WD-VCB25®) 0.001 0.001 Tetrasodium glutamate diacetate (DISSOLVINE GL-47-S®) 0.16 0.16 Perlite one one Dimethicone (DOW CORNING SH20 ° C FLUID 350 CS®) 7 7 STEARETH-100 / PEG-136 / HDI COPOLYMER (SER-AD FX 1100®) one one Isododecane 3 - C ₁₄ -C ₂₂ alcohols (and) C ₁₂ - ₂₀ alkyl glucoside (MONTANOV L®) 3 3 Water Up to 100 Up to 100 Preservative 0.075 0.075 Odorant one one

Emulsion Preparation Protocol

Dimethicone and the glucoside derivative are added to a beaker and heated to 80 ° C with stirring. In the second glass, water and the copolymer are mixed together with stirring to disperse and heated to 80 ° C. The mixture of glass 1 is added with vigorous stirring, after which the contents are cooled to 40 ° C. Aluminum salts are added with stirring, then the other ingredients, perlite is added last. Odorant is added at about 25 ° C.

In vitro stickiness measurement

The protocol used allows standardization of the conditions of application, temperature and time of drying and relative humidity. For each formula, conduct ten tests every 0.5 seconds to 15 minutes using a tribometer.

Protocol:

The test product is distributed on a specific substrate consisting of a PMMA plate, this substrate models the appearance of the skin (SUPPLALE® substrate - designation PBZ13001 from Idemitsu). The distribution is carried out using a stick on the SUPPLALE substrate in a circle defined by a double-sided crown. The amount of the distributed product is 3.75 mg / cm ² .

After uniform distribution of the product, a plate with a film is placed under the texture analyzer - Model TA-XT2 from Stable Micro Systems - equipped with a cylindrical probe with a diameter of 18 mm, to which is attached a 18 mm Bioskin backing disc (black plate Bioskin K275 from Maprecos SAS) - and covered substrate SUPPLALE.

The texture analyzer is placed in a glove box for working in an atmosphere with controlled temperature and humidity (temperature 37 ° C and relative humidity 40%).

The probe “squeezes” the product with a certain force. The device then calculates the force required to separate the probe from the sample. In the case of this experiment, only the maximum strength, expressed in grams, is maintained, which represents the strength of the formula’s stickiness at the moment. This type of measurement is performed at different times (every 30 seconds) until a “zero” (*) force is obtained, which means that the film of the formula being studied is dry.

Results:

The obtained stickiness for compositions 1 and 2 is shown in figures 1 and 2.

FIG. 1 on the graph, the drying time for 15 minutes is displayed along the x axis, and the force required to separate the film from the probe, expressed in grams, along the y axis.

FIG. 2, the graph is a histogram showing the maximum strength that displays the intensity of the stickiness of a formula.

It was observed that the composition 1 in accordance with the present invention, containing volatile oil based on hydrocarbons (isododecane), reduces the stickiness relative to the composition 2 without isododecane by 50%.

Composition Example 1 (invention) Example 2 (beyond the scope of the invention) Stickiness 15 32

Claims (45)

1. Deodorizing oil-in-water emulsion, characterized in that it contains: a) at least one continuous aqueous phase; and b) at least one oil phase dispersed in said aqueous phase and containing at least one volatile hydrocarbon-based oil, wherein the volatile hydrocarbon-based oil is selected from C ₈ -C ₁₆ isoalkanes; and c) at least one mixture containing at least one alkyl polyglycoside, the alkyl chain of which is linear or branched and contains 12-22 carbon atoms, and at least one linear or branched fatty alcohol having 12-22 carbon atoms; g) at least one associative non-ionic polyester-polyurethane; e) at least one deodorizing active agent. 2. The emulsion according to claim 1, in which component b) contains (a) 5-60% by weight of alkyl polyglycoside (s); (b) 95-40 wt.% fatty (s) alcohol (s) of the total mass of the specified emulsifying mixture. 3. The emulsion according to claim 1 or 2, in which the alkyl polyglycoside (s) has (s) the following structure: R (O) (G) _x , in which the substituent R is a linear or branched C ₁₂ -C ₂₂ alkyl substituent, G is a saccharide residue and x is in the range of 1-5, preferably 1.05-2.5 and more preferably 1.1-2. 4. The emulsion according to claim 3, in which the saccharide residue G is selected from glucose, dextrose, sucrose, fructose, galactose, maltose, maltotriose, lactose, cellobiose, mannose, ribose, dextran, tallose, allose, xylose, levoglucan, cellulose and starch and more preferably glucose. 5. Emulsion according to any one of claims 1 to 4, in which fatty (s) alcohol (s) contains (at) from 12 to 18 carbon atoms, and more preferably selected (s) individually or in mixtures of lauryl alcohol, cetyl alcohol, myristic alcohol, stearyl alcohol, isostearyl alcohol, palmitic alcohol, oleic alcohol, behenyl alcohol and arachidyl alcohol. 6. Emulsion according to any one of claims 1 to 5, in which the alkyl polyglucoside has an alkyl portion identical to the alkyl portion of fatty alcohols. 7. The emulsion according to any one of claims 1 to 6, in which the fatty alcohol / alkyl polyglucoside mixture is selected from the following mixtures: Cetyl stearyl alcohol / cocoyl glucoside; Arachidyl alcohol and behenyl alcohol / arachidyl glucoside; Myristyl alcohol / myristyl glucoside; Cetyl stearyl alcohol / cetyl stearyl glucoside; C ₁₄ -C ₂₂ alcohols / C ₁₂ -C ₂₀ alkyl glucoside; Cocoyl alcohol / cocoyl glucoside; Isostearyl alcohol / isostearyl glucoside; and more preferably selected from Cetyl stearyl alcohol / cetyl stearyl glucoside; C ₁₄ -C ₂₂ alcohols / C ₁₂ -C ₂₀ -alkyl glucoside and even more preferably a mixture of C ₁₄ -C ₂₂ alcohols / C ₁₂ -C ₂₀ alkyl glucoside. 8. Emulsion according to any one of claims 1 to 7, in which the associative non-ionic polyester-polyurethane includes in its chain both hydrophilic and hydrophobic sequences, which are aliphatic sequences and / or cycloaliphatic and / or aromatic sequences. 9. Emulsion according to claim 8, in which the associative non-ionic polyether-polyurethane contains at least two lipophilic hydrocarbon-based chains containing 6-30 carbon atoms, separated by a hydrophilic block, in which hydrocarbon-based chains can be side chains or chains at the end of the hydrophilic block. 10. The emulsion according to claim 9, in which the associative non-ionic polyether-polyurethane is in triblock form, while its hydrophilic sequence is a polyoxyethylated chain comprising 50-1000 oxyethylated groups. 11. The emulsion according to any one of paragraphs.8-10, in which the associative non-ionic polyester-polyurethane obtained by polycondensation of at least three compounds, including (i) at least one polyethylene glycol containing 150-180 moles of ethylene oxide, (ii) polyoxyethylene stearyl alcohol containing 100 moles of ethylene oxide, and (iii) diisocyanate. 12. Emulsion according to claim 11, in which the associative non-ionic polyether-polyurethane is a product of polycondensation of polyethylene glycol containing 136 moles of ethylene oxide, stearyl alcohol, polyoxyethylenated with 100 moles of ethylene oxide, and hexamethylene diisocyanate (GDI) with a weight average molecular weight of 30000. 13. The emulsion according to any one of claims 1 to 12, in which the deodorizing active agent is selected from antiperspirant active agents, in particular salts or complexes of aluminum and / or zirconium and more preferably aluminum hydroxochloride. 14. The emulsion according to any one of claims 1 to 13, in which the volatile (s) oil (a) hydrocarbon-based is present in concentrations in the range of 0.1-30 wt.% And more preferably 0.5-15 wt.% From total weight of the composition. 15. The emulsion according to any one of claims 1 to 14, in which the volatile hydrocarbon-based oil is selected from isododecane, isodecane, isohexadecane and mixtures thereof, and even more preferably isododecane. 16. Emulsion according to any one of claims 1 to 15, containing: a) at least one continuous aqueous phase; and b) at least one oil phase dispersed in said aqueous phase and containing at least one C ₈ -C ₁₆ isoalkane; and c) at least one mixture of C ₁₄ -C ₂₂ alcohols / C ₁₂ -C ₂₀ alkyl glucoside; and g) at least one polycondensation product of polyethylene glycol containing 136 moles of ethylene oxide, stearyl alcohol polyoxyethylated with 100 moles of ethylene oxide, and hexamethylene diisocyanate (GDI) with a weight-average molecular weight of 30,000 and d) at least one salt or complex of aluminum and / or zirconium, in particular aluminum hydroxochloride. 17. Emulsion according to any one of claims 1 to 16, containing at least one additional oil selected from non-volatile hydrocarbon-based oils and / or volatile or non-volatile silicone oils, volatile or non-volatile fluorinated oils and their mixtures and, in particular, selected from non-volatile silicone oils and even more preferably from non-volatile polydimethylsiloxanes. 18. Emulsion according to any one of claims 1 to 17, characterized in that it is presented in the form of a cream, distributed in a tube or lattice; in roller form and, more preferably, in roller form. 19. Emulsion according to any one of claims 1 to 18, in which the emulsion contains a physiologically acceptable medium. 20. The method of processing body odor, which consists in applying to the keratin material deodorizing emulsion according to any one of paragraphs.1-19. 21. The method according to claim 20, in which affect the sweating person.

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