DK161010B - ANTI-TRANSPARENT AND / OR DEODORANT ANIMAL TREATMENT PRODUCT AND PREPARATION FOR PRODUCING THEREOF - Google Patents

Description

DK 161010 B

in

The present invention relates to dry, stable, substantially anhydrous antiperspirant / deodorant creams comprising a volatile silicone carrier, a clay suspension / thickening agent in the form of a gel, and an oil absorbent material and an active antiperspirant and / or deodorant agent as the essential ingredients. .

The invention also relates to a process for making such a cream.

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Slurries, pastes and creams are traditionally prepared as oil-in-water or water-in-oil emulsions. Antiperspirants made with these emulsions continue to be either wet or oily on the skin and are often sticky. The 15 also require time to dry. Oil-based, liquid roll-on, on the other hand, requires shaking. They continue to be oily and also require time to dry.

Anhydrous antiperspirant products are known and are described, among others, in U.S. Patent No. 3,873,686, in which a liquid composition, which may also be in the form of a cream and preferably in the form of an aerosol, comprises an all carbon soluble aluminum chlorine hydroxide polyol complex. antiperspirant in anhydrous ethanol carrier. Such a staple product is disclosed in U.S. Pat.

4137306. Anhydrous liquid products of particular utility in pump spray or roll-on compositions wherein the antitranspirants are dissolved in a carrier containing ethanol and a sufficient amount of volatile and / or non-volatile sieve 1 in -30 cone liquids to reduce the antiperspirants. stickiness, is disclosed in United States Patent Nos. 4,053,581, 4,065,564, and 4,073,880. In an attempt to improve the drying properties of antiperspirant products, Product Bulletin of Wickhen Products, Incorporated, received May 24, 1979, discloses a roll-on suspension containing an antiperspirant in a carrier comprising 69-77% volatile silicone, 2% ethanol and 1% water.

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British Patent Application GB 2018590A omits the alcohol content of the roll-on or pump-spray antiperspirant suspension carrier and instead uses a volatile cyclic silicone in amounts of 60-95% to increase the attachment of said antiperspirant to the armpit, thereby improving efficiency. . Despite the incorporation of suspending agents into the above preparation, some shaking is necessary for redispersing sedimented antiperspirant.

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British Patent Nos. 1,485,373, 1,501,862 and 2,003,730 disclose a moisture-absorbing, water-insoluble, and / or water-soluble polymer (i.e., starch) as a substitute for astringent antiperspirant compounds in an alcoholic carrier, wherein said compositions are in the form of roll-on lotions, spray-pump liquids or aerosol sprays.

Another attempt to avoid greasy sticky antiperspirant products resulted in solid stick preparations containing antiperspirant powders (i.e., aluminum salts) suspended in a solid support comprising volatile silicones and long chain alcohols which may contain other powdery materials such as talc, starch, , sodium bicarbonate and "sublimated" silica, as disclosed in U.S. Pat.

25 4,126,679.

Although antiperspirant creams are usually prepared as oil-in-water emulsions, anhydrous creams in the form of a thixotropic gel are disclosed in U.S. Pat.

No. 30,083,956, wherein a powdered astringent material is suspended in a liquid plasticizer such as mineral oils, or fatty acids or fatty alcohol esters containing an inorganic clay thickener / suspending agent, and a gel activating agent such as C1-5 alkanols or propylene carbonate. This cream is in the form of a gelled mixture.

Despite the many attempts to provide a dry cream product, there is no mention of an anhydrous paste or 3

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cream product that is stable, ie. resistant to vision and requires no shaking before use, is easy to disperse, does not feel wet, oily, sticky or greasy and disappears almost immediately upon rubbing, requires essentially no drying time and includes an antiperspirant and an oil absorbent. material in a volatile non-polymeric carrier, such as volatile silicone, and a clay suspension / thickening agent in the form of a bentonite gel.

The present stable and substantially anhydrous cream product is characterized in that it consists of 10-30 wt.% Antiperspirant and / or deodorant active agent and 10-50 wt.% Of an oil-absorbing powdered material selected from talc, starch species, clays. , microcrystalline cellulose and flour 15 of cereal products and mixtures thereof homogeneously dispersed in a non-polar carrier constituting 25-55% by weight of the cream product, in the form of a volatile silicone, and 1-20% by weight of suspension. binder / thickener in the form of a gelatinized clay in a non-polar carrier selected from bentonite gels, hectorite gels, magnesium aluminum silicate gels and hydrophobically treated bentonite gels prepared by reaction of bentonite with an amine in a cation exchange system.

This provides a stable cream or paste antiperspirant deodorant product which does not require any shaking before use. The product essentially requires no drying time when applied to the skin and it provides a dry feel and has improved aesthetic properties, ie. is not wet, oily or sticky when applied to the skin.

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The product is easy and convenient to apply to the skin using simple distribution with a cotton swab or fingers, and it is cosmetically acceptable for sale as a consumer product.

Embodiments of the cream product of the invention are set forth in the dependent claims on the anhydrous cream.

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In particular, the invention relates to stable, fast-evaporating, quick-drying anhydrous antiperspirant / deodorant products in the form of cream or paste which are dry after application to the skin and do not need shaking prior to use nor require any significant drying time, the products of claim 3.

It has been found that superior antiperspirant / deodorant products can be formulated as pastes or creams that require no shaking and require essentially no drying time. Furthermore, they disappear almost immediately after rubbing and have superior ultra-dry properties without giving the skin a subsequent oily or greasy feel. The user can therefore dress almost immediately after applying the product. These products are essentially anhydrous and contain volatile or non-volatile, non-polar carriers in combination with oil absorbing materials. A smaller amount of oils are used which, in combination with oil-absorbing materials, serve to obtain novel ultrathin type antiperspirant / deodorant products. For thickening agents, binders and suspending agents are useful in the compositions for enhancing the aesthetic properties of the product and the stability of the product. O / W emulsifiers are also useful for improving the ability of the products to be rinsed off the skin.

Accordingly, an anhydrous antiperspirant / deodorant cream comprising an antiperspirant and / or deodorant dispersed in the volatile silicon carrier 30 containing a clay-containing, suspension / thickening agent and at least one oil-absorbing material offers many advantages and is unexpectedly superior to water antiperspirant / deodorant emulsions as well as superior to oil-based, liquid roll-on antiperspirants and deodorants, as is apparent from the nature of the products herein which are ultra-dry and neither wet, oily nor sticky and require essentially no drying time. In addition, they are about 5

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traded creams are stable, ie. does not precipitate antiperspirant or deodorant, has a good shelf life, is without syneresis and requires essentially no shaking before use. The creams in question are easier to distribute and 5 non-greasy compared to antiperspirant or deodorant pins. Unlike liquid roll-ons, they do not run, are wet or oily, but dry in use. The anhydrous creams in question eliminate the many drawbacks of the prior art compositions and represent an unexpectedly superior product, both in terms of aesthetic properties and efficiency.

The carrier in which the active antiperspirant and / or deodorant component is dispersed is non-polar and is a volatile silicone. This carrier facilitates the almost instantaneous absorption of said active ingredient in the skin, removes the prickly feeling or sensation caused by ethanol, which is a commonly used polar carrier, and the wet sensation of an aqueous carrier. The volatile silicone oils may be cyclic silicones of the formula - [R 2 SiO 2] n "f wherein R is C 1 -C 4 alkyl and n is 3-10, preferably 3-7, and the unsatisfactory valences on oxygen and the silicon atom at the ends of the chain are interconnected to form a cyclic structure Suitable volatile cyclic silicones are, for example, (a) UCCY-7207, sold by Union Carbide Corporation, where each R is a methyl group and which typically 99.4 wt% tetramer, 0.6 wt% trimer and traces of the pentamer and hexamer comprise (b) SWS-03314 (sold by SWS Silicones, a division of Stauffer Chemical Company) wherein R is a methyl group and which consists essentially entirely of the tetramer; and (c) Dow Corning 344 liquid, wherein R is a methyl group and typically comprises approx.

88 wt% tetramer, approx. 11.8% by weight of pentamer and traces of trimer and hexamer, and more specifically cyclomethicone, which is a cyclic dimethylpolysiloxane compound. The volatile silicone oil 35 may also be linear polydimethylsiloxanes. The non-polar carrier is approx. 25-55% by weight and preferably 30-45% by weight of the product.

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The oil-absorbing material, which is an essential component of the present anhydrous compositions, is a finely divided powder selected from talc, starches, clays, microcrystalline cellulose, grain-derived powders such as rice flour, and mixtures thereof. This oil-absorbing powder increases the density of the cream product, improves its stability and drying properties, and gives the cream a dry feel after application to the skin.

The oil absorbing filler dries the cream by absorbing the volatile silicone and acts as the drying medium in the system. The combination of the oil-absorbing powder and the non-polar sieve icon carrier forms a non-sticky film on the skin which has a velvety smooth and dry feel. The oil absorbing particulate material constitutes at least 10% by weight * and preferably 15-30% by weight and up to 50% by weight of the total product.

The present cream preparations contain an active powdered antiperspirant and / or deodorant material. Any astringent aluminum or zirconium antitranspiration salts or complexes well known in the art can be used, such as zirconyl hydroxyhalides, basic aluminum halides, zirconium aluminium glycine complex, aluminum alloy, chloride, a mixture of aluminum chlorohydrate, aluminum chloride and urea, aluminum chlorohydroxide-propylene glycol complex ("Rehydrol" ® from Reheis Chemical Co.), mixtures thereof and the like. Any known active deodorant agent such as sodium bicarbonate or zincricin oleate can also be used per se or in conjunction with the active antiperspirant component if compatible. The amount of active agent used should be sufficient to impart sweat reduction and / or deodorant properties to the product, and the amount may vary over a wide range. However, amounts of at least 5% and preferably 20-30% are preferred.

Another essential component of the present anhydrous cream antiperspirant product is approx. 1.0-20% by weight of a clay suspension / thickening agent in the form of a gel containing 7

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ca. 0.1-10% clay gelled in a non-polar carrier selected from volatile silicone, fatty esters (isopropylmyristate), volatile hydrocarbon, fatty alcohols (isocetyl alcohol), ethoxylated and propoxylated fatty alcohols. This clay gel thickens the volatile sieve 1 icon carrier, improves product stability and prevents oil separation (syneresis). The clay gels may be pre-prepared in a non-polar carrier in the presence of a wetting agent such as propylene carbonate, and may be subjected to high shear forces, such as in a homogenizer at 351-421 10 kp / cm8 prior to addition to the volatile silicon carrier, or also said gel can be prepared in situ in said sieve 1 in cone carrier from the gelling ingredients (clay, non-polar carrier and wetting agent) during the process of preparing the cream product. Suitable clay-thickening / suspending agents include bentonite gels, hector in gels and colloidal magnesium aluminum silicate gels, and hydrophobically treated bentonite gels, which go under the trade designation "Bentone" ®, which is prepared by reacting benonite with an ammonium and cation exchange system. of a gel thereof in a non-polar carrier, such as isopropyl myristate, volatile silicone and mixtures thereof. Various amines are reacted to obtain a variety of bentons which may also differ in amounts of SiO 2, MgO and Al 2 O 3. Specific examples within the scope of the invention are "Bentone" ® 38, "Bentone" ® 34, "Ben-25 Tone" ® 27, and "Bentone" ® 14, all having a particle size below about 5 microns and available from NL Industries, Inc. "Bentone" 38, a quaternary ammonium hectorite clay, is the most preferred suspension / thickening agent.

Smaller amounts of sublimated silica ("Cab-O-Si1" ® from Cabot Corp.) is a further suitable suspending agent which can be used in conjunction with the above clay suspension agent.

The sublimated silica assists in absorbing the silicone oil and in preventing syneresis. However, the use of sublimated silica 35 as the sole thickener results in an unstable product in which the oil is excreted.

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Prevent amounts of approx. Furthermore, 0.5-10% by weight of higher fatty acid amides can be used, either singly or in combination, as oil-absorbing binders and thickening agents. Suitable amides j include stearoyl monoethanolamide, cocomonoethanolamide and the like.

Non-ionic emulsifiers are an optional preferred ingredient in the present product because they provide enhanced ability to flush the antiperspirant film from the body.

Suitable nonionic emulsifiers include alkoxylated, such as ethoxylated and propoxylated, fatty ethers and fatty alcohols such as polyoxyethylene (20) isohexadecyl ether, polyoxyethylene (100) stearyl alcohol, polyoxypropylene (15) stearyl ether, etc. and mixtures thereof. Amounts of 0.1-5% by weight can be used.

Another optional preferred ingredient is a fatty acid metal salt which acts as a stabilizing agent to prevent syneresis. Suitable metal salts include zinc, aluminum, lithium, calcium and magnesium salts of C 2 -C 22 saturated and unsaturated fatty acids. Typical fatty acid salts include myristates, palmitate, stearates, etc. in amounts of 0.1-5% by weight.

In addition to the essential or indispensable constituents of the present product, smaller amounts of such components as perfumes, dyes, whiteness agents such as titanium dioxide, antioxidants, ultraviolet light absorbers for enhancing the color, and the like may also be incorporated therein, so that improving aesthetic value and consumer acceptability. Smaller quantities of other ingredients which do not adversely affect the beneficial properties of the product in question may also be incorporated.

Inhibiting amounts of emollients such as fatty esters, fatty alcohols, mineral oil and polyethersiloxane copolymers can also be incorporated into the disclosed creams to impart lubricity to the final product. Examples of emollients 9

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includes isopropyl myristate, isopropyl palmitate, cetyl acetate, cetyl propionate, diisopropyl adipate, PP6-15 stearyl ether, etc. Said emollients may be solid waxes or liquid oils.

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The anhydrous cream compositions of the present invention are used in the same way as any conventional antiperspirant product to inhibit armpit transpiration. The present product can be easily rubbed onto the skin leaving a dry, non-sticky, non-oily, non-greasy, non-sticky and smooth film that disappears on the skin. The cream products in question can be easily applied by suitable means including the use of the fingers, pads or layers of various substrates, brush, lubricant and suitable cream dispensers known to those skilled in the art. They can be packaged in any suitable container including glass or jars, boxes, tubes, bottles and extruders known in the art.

The process for preparing the stable and substantially anhydrous cream product of the invention is characterized by mixing the gel-shaped and clay-containing suspending agent with the volatile silicon oil carrier and heating to a temperature of 60-105 ° C until a viscous solution is formed, after which the antiperspirant / deodorant powder and the oil absorbing powder are stirred and admixed in the viscous solution to form a stable, viscous, hot and pourable mixture which is homogenized and cooled to form a homogeneous, non-pourable cream. More specifically, a bentonite gel, which is a preferred suspension / thickening agent, is prepared by mixing a nonpolar carrier or combination, such as isopropyl myristate and volatile silicone, with "Bentone" ® and a wetting agent such as propylene carbonate, and homogenizing said mixture to form a gel. The thickness of the volatile silicone may also be obtained during batch preparation 1-1 using the portion or the full prescribed amounts of the non-polar carrier or non-polar carrier.

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10 leather carriers, Bentone and wetting agent, and homogenization of the mixture, thereby forming the bentonite gel in situ and imparting the thickening properties of the volatile silicon carrier. A bento-nitgel can also be purchased as a branded product. Said bentonite gel-5 suspending agent and the silicone oil are mixed and heated to a temperature in the range of approx. 60 ° C to approx. 105 ° C until a viscous solution is formed, then successively mixes and mixes the antiperspirant powder and the oil-absorbing powder with said viscous solution to form a stable viscous mixture which can be homogenized in hot pourable state to produce, after cooling, homogeneous, non-pourable cream. Additional suspending agents, thickening agents, stabilizing agents and nonionic emulsifiers may be melted and premixed with the oil absorbing powder or antiperspirant powder prior to their addition to said viscous non-polar silicone oil carrier, or they may be pre-mixed and independently added or melted and added separately to the viscous support. Perfume and dyes are added to the viscous mixture after 20 cooling to between 43 ° C and 66 ° C. It is preferred to homogenize the final mixture to obtain a homogeneous cream product of the desired viscosity which is a non-pourable consistency. The final product may have a non-pourable consistency at ambient temperature, a heavy cream consistency or a thick paste consistency.

The following specific examples further illustrate the present invention. All amounts of various constituents are listed as weight amounts, unless otherwise stated.

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Example 1

Ingredient% ® "Bentone" gel "A" 11,806

Lithium Stearate 0.800 5 Antitranspiration Powder (1) 20,000

Volatile silicone (2) 40,394

Talcum Powder 25,000 "AtlS" G3758 (3) 2,000 "Bentone Gel" A "10 Component%

Isopropyl myristate 84,706 "Bone tone" 3-8 (4). 11765

Propylene Carbonate 3,529 (1) Syringe-dried mixture of 90 parts of aluminum chloride, · *** 10 parts of aluminum chloride and 5 parts of urea.

(2) Cyclomethicone, a cyclic dimethylpolysiloxane compound D.C. 344 liquid, F222 Siloxane-SWS.

(3) Polyoxyethylene (100) stearyl alcohol - ICI.

(4) Quaternary Ammonium Hector Titles - NL Industries.

Procedure for preparing "Bentone" gel "A" "Bentone" 38 is mixed with isopropyl myristate and propylene = carbonate is added. The mixture is passed through a Manton Gaulin 2 single stage homogenizer at 351-4.21 kp / cm. A very thick non-pourable gel is obtained.

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Procedure

Lithium stearate is mixed with "Bentolfe" gel "A" and heated to form a thick paste. The mixture is cooled to ca. 60 ° C and volatile silicone (at 60 ° C) are added and mixed to form a viscous solution. "Atlas" G3758 is melted and added. Talcum powder and antiperspirant powders are mixed during mixing / and the mixture is homogenized. A viscous cream product is formed.

The above product, upon application to the skin, has a smooth / dry feel (non-oily, non-sticky) as well as excellent aesthetic properties.

Example 2

Ingredient '%

Talcum powder 25.0 "Bentone" gel "A" according to Example 1 15.0

Volatile silicone according to Example 1 32.5 "Cab-O-Sil" (5) 1.0

Antiperspirant Powder of Example 1 20.0 "Witpamide" 70 (6) 2.0 20 "Atlas" G3758 of Example 1 2.0 "Arlamon" E (7) 2.0

Perfume hour. 0.5 (5) Sublimated Silica - Cabot Corporation.

(6) Stearoylmonoethanolamide - Witco.

(7) Polyoxypropylene (15) stearyl ether - ICI.

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Procedure The "Bentone" gel is dispersed in volatile silicone. "Cab-O-Sil is mixed, followed by antiperspirant powder and talcum powder." Atli G3758, "Witcamide" 70 and "Arlamol" E are combined, melted and mixed separately and then added to the mixture. Perfume is added. A paste-type antiperspirant cream product is formed, which product has a light cream consistency.

The above product is dry (not oily or sticky) when applied to the skin, and has excellent aesthetic properties, a fluffy soft feel and forms a non-sticky film on the skin.

The product showed no liquid separation (syneresis) after a predetermined aging time at 43 ° C and 4 ° C.

Examples 3 and 4

Examples 3 4 "Bentone" gel "A" 15.0 4.0

Volatile silicone (2) 36.0 42.0

Part B

Antiperspirant Powder (1) 20.0 20.0 "Arlasolve" -200 (polyoxyethylene 9 n - (20) isohexadecyl (ether))

Part C

25 Talk ^ 22.0 - "Dryflo" starch (All starch) 25 octenyl succinate "Cab-O-Sil" M-1.0 1.0 2.0 "Witcamide" 70 (6) 1.0 1.5 Cocomonoethanolamide 2.0 3.0

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14 3 4

Part D

Color / perfume residual residue

Procedure for Examples 3 and 4

Part A is mixed and heated to 71 ° C. Part B constituents 5 are added to A and mixed. Part C is premixed and added to Parts A and B. The mixture is cooled to ca. 43 ° C and perfume and color are added. The mixture is homogenized.

The products of Examples 3 and 4 are dry (non-oily or sticky) upon application to the skin and have excellent aesthetic properties. The product of Example 4 containing "Dryflo" starch is white in appearance, while the product of Example 3 has a greyish color.

Example 5

Ingredient% 15 "Bentone" gel (from NL Industries) (made with volatile silicone and 15.0 isopropyl myristate)

Volatile Silicone (SWS 03314) 33.8

Silicone copolymer (polyethersiloxane v n copolymer)

Aluminum ium / z irchonium trichlorohydrex powder (aluminum chloro hydroxide + zirconium chloro = 20.0 hydroxide and glycine complex)

Italian talc 28.0 25 Perfume 0.2

The silica copolymer is dissolved in hot, volatile silicone, and the "Bentone" gel is added under mixing to form a viscous solution. The aluminum-zirconium complex is mixed, followed by the talc and then perfume, and the total mixture is homogenized and cooled.

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The product has a soft texture and an excellent feel when applied to the skin, and it exhibits no oil separation after a predetermined aging time at 49 ° C.

Example 6 Component% "Bento" gel (from NL Industries) 5.0

Volatile Silicone (SWS 03314) 36.0

Aluminum / zirconium trichlorohydrex powder 20.0

Perfume 0.2 10 Stearyl Alcohol 8.0

Montana talk 25.0

Polyoxyethylene (100) stearyl alcohol 3.0

Polyethoxylated (16.5) isohexadecyl 4 Q

ether (emulsifier) This product is prepared according to the procedure of Example 5.

The antiperspirant is in the form of a thick paste, has a very firm texture and good drying properties and is stable, ie. that it exhibits no syneresis after a predetermined aging time at 49 ° C.

Example 7

Ingredient%

Flygtic silicone (SWS 03314) 39.5 "Bentone" gel (NL Industries) 8.0

Zinc stearate 2.5

Montana talk 25.0

Aluminum Chlorohydrex P; G; . 20.0 (a propylene glycol complex) Silicone copolymer 5.0

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This product is prepared according to the procedure of Example 6.

The product showed no liquid separation after a predetermined aging time at 49 ° C, 5 '. Example 8

Volatile silicone DC 344, which is less volatile than SWS 03314, was used in place of SWS 03314 in Example 7. The volatile silicone, "Bentons" gel, zinc stearate and silicone copolymer were mixed at a temperature of 104 °. C and cooled to 71 ° C 10 for the addition of the astringent powder and further chilled to 46 ° C for the addition of the talc.

The resulting product is a thick paste with excellent stability properties.

The best stability properties are obtained by using compositions containing the silicone polymer and the astringent aluminum chlorohydrex P.G.

Example 9

Component% - (g) 20 "Bentone" gel (about 12%) 4.0

Volatile silicone 42.0

Part B

Talk 20.0

Antiperspirant Powder (11 20.0) Cocomethano lamide 6.0

Stearoylmethanolamide 6.0

Polyoxyethylene (201 isohexadecyl ether 1.5)

Part C

Darfnmo * - Ω.5

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17 (g) "Bentone" gel and volatile silicone are mixed by means of a luminous stirrer at moderate speed and heated to 74-77 ° C. The remaining ingredients in Part B are added with stirring / until a viscous and homogeneous mixture is formed which is cooled under continuous mixing and then perfume is added.

The resulting cream color is dark. Aging at 49 ° C for 4 days does not result in separation or fluid separation, which is a sign of a stable product.

Example 10 10 Example 9 was repeated except that 1% TiO 2 was added and the talc content was reduced to 19% to give a whiter product than the composition of Example 9.

Example 11 Example 10 was repeated except that the TiO 2 content was increased to 1.5%, the content of ethoxylated isohexadecyl ether was increased to 2.5%, that 0.5% color solution (a blue, yellow and green combination) were added and each talc and silicone content was reduced 1% 20 to 18% and 41% respectively.

The resulting product was a cream with good aesthetic properties which showed good flushing ability.

Example 12

Example 4 is repeated except that 25% rice powder 25 is used in place of the starch component. The resulting product is a uniform brown mixture. It has some inertia compared to products containing starch or talc soro the oil-absorbing filler, but has good cutting characteristics and is stable, which

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18 is evident from lack of separation after aging for 2 weeks at room temperature and at 49 ° C.

Example 13

Ingredient '% 5 Cyclomethicone (Volatile Silicone. From Silicones)' "Dryflo" starch (Al starch) 25 octenyl succinate

Aluminum zirconium trichloro = on n 10 Hydrex powder f

Cocomethanolamine 3.0

Polyethoxy (20) isohexadecyl ether 2.0

Stearoylmethanolamide 1.5 zinc stearate 1.5

"Bentoi" gel R (3.4% isopropyl myristate)

0.48% "Bentone" 38, 0.14% propylene carbonate "Cab-O-SiX" 2.0

Parf lune 0.4

This product was prepared by mixing the "Bentone" -20 gel, silicone, ethoxylated ether, both amide compounds and zinc stearate while heating this mixture to 88-104 ° C until melting, and a uniform viscous mixture is obtained. Even mixture of the deodorant powder, starch and "Cab-O-Sil" is added to the viscous mixture at a temperature of 71-77 ° C with mixing. The perfume is incorporated therein at 71 ° C and the final mixture is homogenized.

This cream is easily distributed and disappears upon rubbing, giving the skin a non-oily, non-greasy and ultra-dry feel. The product showed no liquid separation 30 (syneresis) after aging for 3 months at temperatures between -18 ° C and + 49 ° C.

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Example 14

Example 13 was repeated using a 50:50 mixture of talc and "floo" starch instead of the 25% starch component.

5 The final cream is stable and also exhibits a good, smooth, dry feel when applied to the skin.

Other volatile silicones and mixtures of volatile silicones can be used as the non-polar carrier in place of the relevant silicones in the above examples. Similarly, other oil-absorbing fillers and mixtures of fillers may be used in place of the talc, "drift" starch or rice flour in the above examples. Likewise, other antiperspirant and / or deodorant powders and mixtures thereof may be used in place of the respective active agents used in the Examples. Any other bentonite gel may be used in place of the particular "Benton" gels used in the Examples. Similarly, other suspending agents, stabilizers, thickening agents, binders and nonionic emulsifiers may be used in place of the particular agents used in the Examples as agents for obtaining creams of the desired consistency and aesthetic properties.

The anhydrous antiperspirant creams of the present invention comprising an antiperspirant and / or deodorant powder and an oil absorbent filler homogeneously dispersed in a volatile silicone carrier comprising a bentonite gel as the major suspending agent exhibit unique and superior properties such as ultraviolet properties, such as in terms of feel and in that they require essentially no drying time, stability after aging, as well as requiring no shaking before use and giving the skin a smooth, easy-to-rinse coating,

Claims (10)

Stable and substantially anhydrous cream product for use as an antiperspirant and / or deodorant, characterized in that it consists of 10-30% by weight of antiperspirant and / or deodorant, and 10-50% by weight of a oil-absorbing powdery material selected from talc, starch, clay, microcrystalline cellulose and flour 10 of cereal products and mixtures thereof homogeneously dispersed in a non-polar carrier constituting 25-55% by weight of the cream product in the form of a volatile silicone, and 1-20% by weight of suspending / thickening agent in the form of a gelatinized clay in a non-polar carrier selected from bentonite gels, hectorite gels, magnesium aluminum silicate gels, and hydrophobically treated bentonite gels prepared by the reaction of bentonite. with an amine in a cation exchange system. Anhydrous cream according to claim 1, characterized in that the gel-shaped resilient suspending / thickening agent contains 0.1-10% by weight of clay gelled in a non-polar carrier. Anhydrous cream according to claim 1, characterized in that it further contains 0.1-6% of a fatty acid metal salt selected from the zinc, aluminum, lithium, calcium and magnesium salts of C12-C22 saturated and unsaturated fatty acids. Anhydrous cream according to claim 1, characterized in that the antiperspirant agent is selected from aluminum and zirconium salts or complexes and mixtures thereof. Anhydrous cream according to claim 1, characterized in that the gel is a bentonite gel and that the nonpolar carrier is selected from fatty esters, volatile silicones, volatile hydrocarbons, fatty alcohols, ethoxylated and propoxylated fatty alcohols and mixtures thereof. 21 DK 161010 B Cream according to claim 5, characterized in that it further contains approx. 0.1-5% by weight of a non-ionic emulsifier selected from polyoxyethylene grease ethers, polyoxyethylene grease alcohols, polyoxypropylene grease ethers and polyoxypropylene grease alcohols. Cream according to claim 4, characterized in that the antiperspirant is a complex of aluminum chlorine hydroxide plus zirconium hydroxychloride and glycine, that the volatile silicone is 10 cyclomethicone and that the oil-absorbing material is starch. Cream according to claim 3, characterized in that it further contains 0.5-10% by weight of at least one higher fatty acid amide. Process for the preparation of the anhydrous cream according to claim 1, characterized in that the gel-shaped and clay-containing suspending agent is mixed with the volatile 20silicone oil carrier and heated to a temperature of 60-105 ° C until a viscous solution is formed, stir and mix the antiperspirant / deodorant powder and the oil absorbing powder in the viscous solution to form a stable, viscous, hot and pourable mixture which is homogenized and cooled to form a homogeneous, non-pourable cream. Process according to claim 9, characterized in that the clay gel is formed in situ from clay, non-polar carrier and wetting agent after homogenizing the mixture in the silicone support. 35