FR2501042A1 - ANTISUDORAL ANHYDROUS COMPOSITION - Google Patents

Abstract

THIS STABLE COMPOSITION IN THE FORM OF PASTE OR CREAM, DRYING VERY QUICKLY WHEN APPLIED ON THE SKIN, CONTAINS AN ANTI-SUDORAL OR DEODORIZING AGENT AND A HOMOGENEOUSLY OIL-ABSORBING MATERIAL IN A VEHICLE COMPRISING APPROXIMATELY 25 TO 55 OF A SILICON. VOLATILE AND A CLAY SUSPENSION AND THICKENING AGENT IN THE FORM OF GEL, PREFERABLY BENTONITE GEL. OTHER CONSTITUENTS, SUCH AS METAL SALTS OF FATTY ACIDS, ADDITIONAL THICKENERS, BINDERS, ETC., MAY BE PRESENT.

Description

The present invention relates to dry, stable creams, essentially

  anhydrous antiperspirants containing a volatile silicone excipient, a clay setting agent

  in suspension / thickener in the form of a gel and a material

  oil absorbent as essential ingredients. We usually prepare porridge,

  pasta and creams in the form of oil-in-emulsions

  water or water-in-oil. The products prepared using these emulsions are applied to the skin either in the aqueous or oily state and are often sticky. They also require time to dry. Ball applicator bottles containing oil-based liquids also require shaking. These liquids become oily

  and also take a long time to dry.

  We know in the prior art of

  antiperspirant compositions which are described in the patent

  vet from the United States of America No. 3,873,686 according to which a liquid formulation, which may also be in the form of a cream and preferably is in the form of an aerosol, comprises an aluminum chlorohydroxide-polyol complex soluble in alcohol as an antiperspirant in a vehicle formed from anhydrous ethanol; and in the form

  stick as described in the United States patent of America

  risk no. 4.137.306. US Pat. Nos. 4,053,581, Nos. 4,065,564 and 4,073,880 have been described as anhydrous liquid compositions particularly useful in formulas for vaporizers or for

  ball, compositions in which the antiperspirants

  are dissolved in an excipient containing alcohol and a sufficient quantity of volatile and / or non-volatile liquids to reduce the viscosity of the antiperspirant. In an effort to improve the drying properties of antiperspirant compositions, the product bulletin of the United States firm Wickhen Products, received on May 24, 1979, describes a suspension for a ball applicator bottle containing an antiperspirant agent in an excipient comprising 69- 77% volatile silicone, 2% ethanol and

1 X of water.

  British patent application 2018590A eli-

  mine the alcohol content of the antiperspirant suspension for ball or spray bottle and substitute a volatile cyclic silicone in an amount of 60-95% to improve the adhesion of the product to the armpits, thereby improving its effectiveness. Despite the inclusion of a

  suspended in the above formula, it was born

  stop shaking a little to redisperse antiperspirant

which is deposited.

  British Patents 1,485,373,

  Nos. 1.501.862 and No 2.003.730 describe an absorbent polymer

  bant moisture, insoluble in water and / or soluble in water (i.e. starch) as a substitute for astringent antiperspirant components, in an alcoholic excipient, this formula being in the form of a lotion for

  ball, spray or aerosol bottle.

  Another attempt to avoid fatty and viscous antiperspirants resulted in a solid stick formula containing antiperspirant powder (i.e. aluminum salts) suspended in a solid excipient comprising volatile silicones and long chain alcohols which may contain other powdered materials such as talc, starch, clays,

  sodium bicarbonate and smoke silica, as a

  Written in U.S. Patent 4,126,679.

  Although antiperspirant cream formulas are usually prepared in the form of oil-in-water emulsions, anhydrous creams in the form of a thixotropic gel are described in the U.S. Patent

  United States of America No. 4,083,956 which states that

  pension an astringent powder in an emollient liquid such as mineral oils or fatty acids

  and fatty alcohol esters containing a thickening agent

  health consisting of a mineral clay favoring the suspension and an agent promoting the formation of a

  gel, such as C1 5 alkanols or pro- carbonate

  pylene. This cream is presented as a mixture under

gel form.

  Despite numerous attempts to provide a product in the form of dry cream, there is no

  description of an anhydrous paste or cream composition

  which is stable, that is to say resistant to syneresis and which does not require agitation before using it, which is

  easy to spread, not damp, oily, col-

  slender or oily and disappears almost instantly

  when it is rubbed in, which does not require

  no drying time, which contains an agent

  antiperspirant, a material that absorbs oil in an excipient

  nonpolar volatile pient such as volatile silicone

  and a thickening and suspending agent

  They consist of a bentonite gel.

  The main object of the invention is to reduce

  the disadvantages and difficulties existing in providing

  a new deodorant antiperspirant, in the form of a cream or paste that does not require agitation

before use.

  Another object of the invention is to provide a product in the form of an anhydrous cream or paste which requires practically no drying time when it is applied.

on the skin.

  The invention also aims to provide a paste or cream giving the feeling of being dry with improved pleasantness properties, that is to say which does not

  either not wet, oily or sticky when applied

cation on the skin.

  Another object of the invention is to provide a product which can be applied quickly and easily to the skin by simply spreading it using a tampon.

or fingers.

  Another object of the invention is to provide a formula of antiperspirant and deodorant cream or paste, i acceptable from the cosmetic point of view for sale as

consumer Product.

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  Other advantages and new features

  of the invention will be highlighted in the description

  tion which will follow or will be apparent for the techni-

ciens in the following examples.

  The antiperspirant and deodorant product according to

  the invention comprises an anhydrous cream giving a feeling

  dry, containing an antiperspirant and / or deodorant

  health and an oil absorbing material dispersed in a volatile silicone excipient containing a thickening clay suspending agent consisting of a gel

bentonite.

  More particularly, the invention relates to stable, rapidly disappearing or drying antiperspirant and deodorant compositions in the form of a cream or paste which is dry following its application to the skin and does not require or be agitated. before being used

  practically no drying time, containing as

  essential ingredients about 25-55-% of a silicate excipient

  volatile cone; at least 10 and up to 50%, - and preferably

  15 to 30% by weight of an oil-absorbing material

  the one chosen from the group made up of talc,

  donations, clay, microcrystalline cellulose and pro-

  products derived from cereals and mixtures of these products,

  about 10 to 30% of an antiperspirant and / or deodorant agent

  and about 1.0 to 20% by weight of a clay suspending / thickening agent which consists of a gel and preferably about 0.1 to 6% by weight of a

salt of stearic acid.

  We found that we can formulate products

  quality antiperspirants and deodorants in the form of -

  pastes or creams that do not require shaking and require almost no drying time. In addition, they disappear almost immediately when made

  penetrate by rubbing and they have su-

  ultra-dry legs without giving a subsequent sensation

  o oily or greasy to the skin. The user can therefore dress almost immediately afterwards.

? 501042

  having applied the product. These products are essential-

  anhydrous and contain volatile or non-volatile non-polar excipients in combination with materials

  absorbing oil. We use less oils which

  smells when combined with absorbent materials

  oil to antiperspirants and deodorants uni

  only of the ultra-dry type. Thickeners, binders and suspending agents are useful in formulas to improve the suitability characteristics and stability of the product. Oil / water emulsifiers are also useful to facilitate product removal

by rinsing the skin.

  It follows that an anhydrous antiperspirant cream and

  deodorant comprising an antiperspirant and / or deodorant

  dorisant dispersed in a volatile silicone excipient

  holding a clay suspending / thickening agent

  health and at least one oil absorbing material has many advantages and is unexpectedly superior

  water-based antiperspirant and deodorant emulsions

  health and superior to antiperspirants and deodorants li-

  oil-based quides for ball applicator bottle

  me this is highlighted by the nature of the present new products which are ultra-dry, non-aqueous, oily

  or tights and require almost no drying time

  chage. In addition, the new creams according to the invention

  are stable, that is to say that they do not leave

  be the antiperspirant or deodorant agent, they have a good storage life, are devoid of syneresis and

  practically do not need to be shaken before use

  ge. The new creams according to the invention are more fa-

  eyelashes to extend and non-greasy compared to antiperspirant and deodorant sticks. Liquid treatment for ball applicator bottles, they do not

  not run, are not watery or greasy but dry

  expensive during use. The present new creams

  anhydrous eliminates the many disadvantages of the formulas

  those of the prior art and make a product

Z501042

  unexpectedly higher both with regard to

approval than efficiency.

  The excipient in which the active antiperspirant and / or deodorant ingredient is dispersed is non-polar and is a volatile silicone. This excipient facilitates the almost instant absorption of said active ingredient in the skin, eliminates the burning sensation attributable to

  ethanol which is usually used in excipients

  polar pients and the feeling of humidity of an aqueous excipient. Volatile silicone oils can be

  cyclic silicones represented by the formula -FR2Sio0n-

  wherein R is C1-C4 alkyl and n is 3 to 10, preferably 3 to 7 and the unsaturated valences of the oxygen and silica atoms at the ends of the chain are joined together to form a cyclic structure. Suitable volatile cyclic silicones are for example (a) UCCY-7207 sold by the United States firm Union Carbide Corporation in which each R is a methyl group and which specifically comprises by weight 99.4% of tetramer, 0.6% of trimer and traces of pentamer and hexamer, (b) SWS-02214 (sold by SWS Silicones, a

  Division of the United States firm Stauffer Chemical Com-

  pany) in which R is a methyl group and which is almost completely formed of tetramer and (c) the Dow Corning 344 fluid in which R is a methyl group and which specifically comprises by weight about 88% of tetramer, about 11.8% of pentamer and traces of trimer and hexamer, and more particularly cyclomethicone, a

  cyclic dimethylpolysiloxane compound. Silicon oil

  volatile cone can also be made of polydimethyl-

  linear siloxanes. The non-polar excipient constitutes approximately 25 to 55% and preferably 30 to 45% by

weight of the composition.

  The oil absorbing substance, ingredient es-

  sentiel of the anhydrous formula, is a finely divided powder chosen from the group consisting of talc, starches, clays, microcrystalline cellulose, powders derived from cereals such as rice and mixtures of these products. Oil absorbing powder

  increases the density of the product in the form of a cream,

  improves its stability and its drying properties and gives a cream which gives a dry feeling after application to the skin. The oil absorbing filler makes the cream dry by absorbing volatile silicone and acts as a drying agent in this system. The combination

  oil absorbing powder and silicate excipient

  non-polar cone forms a non-sticky film on the skin which gives a soft velvety sensation. The particulate oil absorbing substance constitutes at least 10% and preferably from 15 to 30% and up to 50% by weight of the

total composition.

  The cream formula according to the invention essentially contains an active substance as antiperspirant and / or deodorant in powder form. Any salt or complex of aluminum or zirconium antiperspirant and astringent well known in the art can be used, such as hydroxyzirconyl halides, halides

  basic aluminum, the aluminum zirconium gly- complex

  cine, aluminum chloride, mixtures of hydrochloride

  te of aluminum, aluminum chloride and urea, a com-

  aluminum chlorohydroxide-propylene glycol plex (Rehy-

  drol from the US company Reheis Chemical Co.), mixtures of these products and analogous compounds. Any active deodorant agent such as sodium bicarbonate and zinc ricinoleate can be used, alone or together with the active antiperspirant component.

  if they are compatible. The amount of active agent used

  must be sufficient to give a reduction in perspiration and / or deodorant properties to the

  composition and may vary within a wide range. Any-

  times, we prefer quantities of at least 5% and above all

from 20 to 30%.

  Another essential ingredient of this antiperspirant product in the form of anhydrous cream is 1.0 to 20%

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  by weight of a clayey suspending agent / thick-

  wicking in the form of a gel, containing about 0.1 to

  % clay, gelled in a non-polar excipient chosen

  if in the group consisting of volatile silicones, fatty esters (isopropyl myristate), hydrocarbons

  volatile, fatty alcohols, (isocetyl alcohol), al-

  ethoxylated and propoxylated fatty cools, This thick clay gel-

  sit volatile silicone excipient, increase stability

  of the product and prevents oil separation (syneresis).

  Such clay gels can be preformed in an excipient.

  pient nonpolar in the presence of a wetting agent such as propylene carbonate is subjected to a strong action of

  shear, for example in a homogenizer at 31500-

  42,000 kPa before its addition to the volatile excipient

  licone; or said gel can be closed in situ in said silicone excipient from ingredients forming the gel (clay, non-polar excipient and wetting agent) during the cream-making process. Thickening / suspending clay agents include bentonite gels, hectorite gels and colloidal aluminum-magnesium silicate gels and bentonite gels treated to be hydrophobic available under the brand name "Bentone" it is prepared by reacting the bentonite in a cation exchange system with an amine and forming from this

  produces a gel in a non-polar vehicle such as -

  isopropyl myristate, volatile silicone and mixtures thereof. Different amines are reacted to obtain different bentones which can also differ in the proportions of SiO2, MgO and Al203. Specific examples in the context of the present invention are Bentone 38, Bentone 34, Bentone 27, and Bentone 14 which all have a particle size below 5 microns and are marketed by the US company NL Industries Inc. On more particularly preferred as a suspending and thickening agent, Bentone 38, a clay

  hectorite in quaternary ammonium form.

250 1042

  Smoke silica in small quantities (for example the product sold by the US firm Cabot

  Corp. under the name "Cab-o-sil") is an agent of sus-

  suitable additional pension that can be used in-

  appears with the aforementioned clay suspending agent. The smoke silica helps by absorbing the silicone oil and

  preventing syneresis. However, the use of si-

  smoke channel as the sole thickening agent, gives a

  unstable product in which the oil separates.

  You can also use small quantities

  tities of about 0.5 to 10% by weight of higher fatty acid amides, either alone or in combination as agents

  oil absorbent, binder and thickener. Amides

  venables include stearoyl monoethanolamide, mono-

  ethanolamide of coconut oil fatty acids and the like.

  Non-ionic emulsifiers are components

  optional preferred killers of the present composition since they provide improved flushing ease of

  the body's antiperspirant film. Emulsifying agents

  suitable nonionic fiants include fatty acids

  and alkoxylated fatty alcohols such as ethoxylated and propo-

  xylated such as polyoxyethylenated iso-hexadecyl ether (20),

  polyoxyethylene (100) stearyl alcohol, stearic ether

  polyoxypropylenated ryl (15), etc, and mixtures of these compounds. 0.1 to 5% can be used

in weight.

  Another preferred optional constituent is a

  metal salt of a fatty acid which acts as a stabilizing agent

  reading to prevent syneresis. Metallic salts

  venables include zinc, aluminum, lithium, calcium and magnesium salts of C 12 -C 22 fatty acid

  saturated and unsaturated. Typical fatty acid salts include

  myristates, palmitates, stearates, etc,

  in an amount of 0.1 to 6% by weight.

  In addition to the essential constituents of the pre-

  sente invention, it can also include small amounts of components such as perfumes, dyes, bleaching agents such as titanium dioxide,

  antioxidants, ultraviolet absorbents for am-

  color enhancement and the like so

  improve the aesthetic value of the product and its acceptance

  tion by the consumer. Small amounts of other constituents which do not harm the beneficial properties

  composition may also be included.

  It is also possible to include in the new creams according to the invention small amounts of emollients such as fatty esters, fatty alcohols, mineral oil, polyether siloxane copolymers to give smoothness to the final product. Examples of emôllients

  include isopropyl myristate, iso- palmitate

  propyl, cetyl acetate, cetyl propionate, diisopropyl adipate, stearyl ether PPG-15, etc. These emollients can be solid waxes or liquid oils. The anhydrous cream formulas according to the invention

  are used in the same way as any

  classic antiperspirant position to inhibit perspiration

  underarms. The composition according to the invention can easily be brought into the skin by rubbing and obtaining a dry non-sticky, non-oily film,

  non-greasy, does not burn and disappears

  regularly on the skin. Creams can be applied

  the invention by any suitable means including

  caught using fingers, pads or sheets

  different substrates, brushes, or the like and different

  convenient cream distributors known to technicians; and they can be packed in any suitable container including jars, packages, tubes, bottles, extrusion devices known in the art

prior art.

  The process for preparing the compositions of

  stable anhydrous creams according to the invention comprises the me-

  mixture of a clay suspending agent in the form of a gel with the vehicle of silicone oil until a viscous solution is formed, then mixing and homogenization of the antiperspirant powder and / or deodorant powder and particulate oil absorbing substance with this viscous solution to form a stable cream. More specifically, a bentonite gel, which is a preferred suspending and thickening agent, is formed by mixing a non-excipient.

  polar or a combination such as iso- myristate

  propyl and a volatile silicone with Bentone and a

  wetting agent such as propylene carbonate and

  subsequently, this mixture is made homogeneous to form a gel. It is also possible to thicken the volatile silicone during the batch preparation process using quantities representing part or all of the non-polar excipient (s), Bentone, wetting agent and the mixture is made homogeneous, thus forming the gel. of bentonite in situ and by giving thickening properties to the volatile silicone excipient. Bentonite gel can also be purchased as a commercial specialty. This bentonite suspending agent is mixed in the gel form with the silicone oil and heated to a temperature in the range of about 60-1040C until a viscous solution is formed, then mix and homogenize the antiperspirant powder and the oil absorbing substance powder with this viscous solution so as to form a stable viscous mixture which can be homogenized hot in a state allowing it to flow to obtain a cream which does not flow not homogeneous on cooling. We

  can melt and premix other suspending agents

  pension, thickening agents, stabilizing agents

  lity and non-ionic emulsifiers with the powder ab-

  sorbing oil or antiperspirant powder before their addi-

  tion to the excipient of non-polar silicone oil vis-

  can be premixed and added independently

  especially to this viscous excipient or we can make them

  melt and add them separately to this viscous excipient.

250 1 0 4 2

  The perfumes and dyes are added to the viscous mixture after cooling between 43 and 66 C. It is preferable to homogenize the final mixture to produce a homogeneous cream of the desired viscosity which has a consistency which does not allow it to be poured. The final product may have a consistency that does not allow it to run at room temperature, the consistency of a heavy cream

  or the consistency of a thick paste.

  The specific examples below illustrate

  invention but it goes without saying that it is not limited

  ted by these examples. All quantities of the various components are given by weight unless otherwise specified.

EXAMPLE 1

  Agents% Bentone gel "A" 11.806 Lithium stearate 0.800 Antiperspirant powder (1) 20,000 Volatile silicone (2) 40.394 Talcum powder 25, 000 Atlas G3758 (3) 2,000 Bentone gel "A" Combosants% Isopropyl myristate 84.706 Bentone 38 (4) 11,765 Propylene carbonate 3,529 (1) Spray-dried mixture of 90 parts of aluminum hydrochloride, 10 parts of chloride

aluminum, 5 parts of urea.

  (2) Cyclomethicone: comDose dimethyl polysiloxane cycli-

  as D.C. 344 Fluid, F222 Siloxane-SWS.

  (3) Polyoxyethylenated stearyl alcohol (100) - HERE.

  (4) Hectorite clay in quaternary ammonium form -

N L Industries.

  Procedure for Bentone "A" ael.

  Bentone 38 is mixed with isopropyl myristate and propylene carbonate is added. The mixture is passed through a single-stage Manton Gaulin homogenizer under a pressure of 3150042000 kPa. We get a very thick gel that we can not pour. Procedure. Lithium stearate is mixed with gel

  of Bentone "A" and heated to form a thick paste.

* The mixture is cooled to about 600C and volatile silicone (60C) is added and mixed to form a viscous solution. We merge Atlas G3758 and add it. Add by mixing talcum powder

  and antiperspirant powder and the mixture is homogenized.

A viscous cream is obtained.

  The above product when applied to the skin gives a dry and soft impression (not oily,

  non-sticky) with excellent aesthetic effects.

EXAMPLE 2

  Constituents% Talcum powder 25.0 Bentone gel "A" from example 1 15.0 Volatile silicone from example 1 32.5 Cab-O-Sil (5) 1.0 Antiperspirant powder from example 1 20.0 Witcamide 70 (6) 2.0 Atlas G3758 from Example 1 2.0 Arlamol E (7) 2.0 Fragrance 0.5

  (5) Smoke silica. Cabot Corporation.

  (6) Stearoyl monoethanolamide - Witco.

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

Procedure.

  Disperse the Bentone gel in the silicone

  volatile. Cab-O-Sil is added and then the antiperspirant powder

  talcum powder and talcum powder. Mix and melt separately

  ment Atlas G3758, Witcamide 70 and Arlamol E, then add them to the mixture. We add perfume. An antiperspirant cream of the paste type is obtained, having the consistency

a light cream.

  The above product is dry (not oily or

  sticky) when applied to the skin with properties

  exceptional pleasure tees, it gives a soft velvety sensation and forms a non-sticky film on the skin.

  This product does not show any separation of

  quide (syneresis) after predetermined periods of

aging at 430C and 4 C.

  EXAMPLES 3 and 4 Examples 3 4 Part A 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 (ether polyoxyethylenated isohexadecylic (20) 2.0 2.0 Part C

Talc 22.0 -

  Dryflo starch (Starch Ai) octenyl succinate - 25.0 Cab-O-Sil M-5 1.0 2.0 Witcamide 70 (6) 1.0 1.5 Monoethanolamide of coconut oil fatty acids 2.0 -3.0 Part D

Color / fragrance q.so q.s.

  Procedure for Examples 3 and 4.

  Part A is mixed and heated to 71 C. The constituents of part B are added to part A and mixed. We

  premix part C and add it

  in parts A and B. The mixture is allowed to cool to

  about 43oC and add the perfume and the dye. We homo-

generates the mixture.

  The products of Examples 3 and 4 are dry (not oily or sticky) when they are applied to the skin

250 1 0 4 2

  with excellent aesthetic effects. The product of e-

  xample 4 with Dryflo starch has a white appearance

  whereas that of Example 3 has a grayish color.

EXAMPLE 5

  Constituents Bentone gel (NL Industries) (prepared with volatile silicone and isopropyl myristate) Volatile silicone (SWS 03314) Silicone copolymer (polyether siloxane copolymer) Aluminum Trichlorohydrex powder / zirconium (aluminum hydrochloride + chlorohydroxide zirconium in the form of a complex with la, 0 33.8 3.0 glycine) 20.0 Italian talc 28.0 Perfume 0.2 The silicone copolymer is dissolved in hot volatile silicone and the Bentone gel added mixing to form a viscous solution. Add by mixing the aluminum / zirconium complex and then

  the talc and then the perfume and all the mixture is homo-

generated and cooled.

  This product has a soft texture and gives an excellent feeling when applied to the skin and

  it does not show any separation of the oil after a

  predetermined aging period at 49 C.

EXAMPLE 6

  Constituents Bentone gel (NL Industries) Volatile silicone (SWS 03314) Trichlorohydrex aluminum / zirconium powder Perfume Stearyl alcohol Montana talc Polyoxyethylenated stearyl alcohol (100) Polyethoxylated isohexadecyl ether (16.5) (emulsifier), 0 36.8, 0 0 , 2 8.0, 0 3.0 4.0 This composition is prepared in accordance with

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, i.e. it does not have

  syneresis after a predetermined period of aging-

lie at 49 C.

EXAMPLE 7

  Constituents% Volatile silicone (SWS 03314) 39.5 Bentone gel (NL Industries) 8.0 Zinc stearate 2.5 Montana talc 25.0 Aluminum chlorohydrex PG (complex with propylene glycol) 20.0 Copolymer of silicone 5.0

  This product is prepared in accordance with the operating mode.

example 6 rack.

  This product does not show any separation of

  that after a predetermined period of aging

at 490C.

EXAMPLE 8

  The SWS 03314 of Example 7 is replaced by volatile silicone DC 344 which is less volatile than SWS 03314. The volatile silicone, Bentone gel, zinc stearate and the silicone copolymer are mixed with a

  temperature of 104 C and cooled to 71 C for the addi-

  tion of the astringent powder and it is further cooled to

46 C for the addition of talc.

  The product obtained is a thick paste with

  excellent stability properties.

  The best stabilizing properties are obtained.

  using formulas containing the copolymer of

  silicone and aluminum chlorohydrex astringent P.G.

EXAMPLE 9

  Constituents Part A Bentone gel (approximately 12%) Volatile silicone Part B Talc Antiperspirant powder (1) Monoethanolamide of coconut oil fatty acids Stearoylmethanolamide Polyoxyethylene isohexadecyl ether (20) Part C 4.0 42.0, 0, 0 6.0 6, O 1.5 Perfume 0.5 The Bentone gel and the volatile silicone are mixed using a light stirrer at moderate speed

  and heated to 74-76 C. The remaining components are added

  part B, shaking until it forms

  a viscous and homogeneous mixture which is cooled in

so much more and we add the scent.

  The color of the cream obtained is dark. The

  aging results at 49 C after 4 days do not

  feel no separation or oozing, which indicates a

stable product.

EXAMPLE 10

  Example 9 is repeated, but 1% of TiO2 is added and the talc content is reduced to 19%, which

  gives a product whiter than the formula of Example 9.

EXAMPLE 11

  Example 10 is repeated but the content of

  TiO2 is increased to 1.5%, the content of isohexa- ether

  ethoxylated decyl is increased to 2.5% and 0.5% of a dye solution (a combination of blue, yellow and green) is added, and the contents are reduced

  in talc and silicone from 1% to 18% and 41% respectively

  vement. The product obtained is a cream with good

  aesthetic effects and presenting a good ease of

lifting by rinsing.

EXAMPLE 12

  Example 14 is repeated, but 25% rice powder is substituted for the starch. The product obtained is a uniform brown mixture. It presents some streaks

  by comparison with compositions containing amino

  don or talc as an oil absorbing filler but it pos-

  has good scrub removal characteristics

  and is stable as indicated by the absence of separation

  tion after aging for two weeks at. temple-

ambient temperature and at 49 C.

EXAMPLE 13

  Constituents Cyclomethicone (volatile silicone SWS Silicones) Starch Dryflo (starch A1) octenyl succinate Powder Aluminum trichlorohydrex / zirconium Methanolamide of coconut oil fatty acids Polyethoxylated isohexadecyl ether (20)

Stearoylmethanolamide -

  Zinc stearate Bentone gel (3.4% isopropyl myristate, 0.48% Bentone 38, 0.14% carbonate, 6.0.0 3.0 3.0 2.0 1.5 1.5 propylene) 4.0 Cab-O-Sil 2.0 Perfume 0.4 The product was prepared by mixing Bentone gel, silicone, ethoxylated ether, the two amide compounds and zinc stearate by heating this mixture at 88-105 C until it melts and a uniform viscous mixture is obtained. A mixture of deodorant powder, starch and Cab-O-Sil is added to the

  viscous mixture at a temperature of 71-77 C with stirring.

  The perfume is added to it at 71 ° C. and the mixture is homogenized

final.

  This cream spreads easily and disappears when it is rubbed in, which gives a non-oily, non-greasy, very dry feeling to the skin. Product does not have liquid separation

  (syneresis) after 3 months aging at temperatures

  tures in the range of -18 to + 490C.

EXAMPLE 14

  Example 13 is repeated using a method

  50:50 lane of talc and dryflo starch instead of 25%

starch component.

  The final cream is stable and also presents

  a pleasant, soft, dry feeling when applied

tion to the skin.

  The particular silicones of the above examples can be replaced by other volatile silicones and mixtures of volatile silicones as a non-polar vehicle. Likewise, talc, dryflo starch or rice powder can be substituted in the above examples for other oil-absorbing fillers and mixtures of fillers. Likewise, the particular active agents used in the examples can be substituted for other antiperspirant and / or deodorant powders and mixtures of these powders. Any other bentonite gel can replace the specific Bentone gels used in the examples. Similarly, other suspending agents, stabilizers, thickeners, binders and nonionic emulsifiers can replace the specific agents used in the examples as means for obtaining creams having the consistency and effect

aesthetics desired.

  Anhydrous antiperspirant creams according to the invention

  containing an antiperspirant and / or deodorant powder

  risante and an oil absorbing filler dispersed in a

  homogeneous lesson in a volatile silicone excipient

  Bentonite gel as an essential suspending agent has unique and superior properties such as the property of being ultra-dry both as a sensation and requiring virtually no drying time, having stability during aging and moreover not requiring to be agitated before the use and giving a smooth coating on the skin, which one can

easily removed by rinsing.

2 50 1 0 4 2

Claims (12)

  1. A substantially anhydrous stable cream composition, characterized in that it comprises an antiperspirant and / or deodorant active agent and an oil-absorbing material dispersed homogeneously in a   excipient containing about 25-55% by weight of a sili-   volatile cone and a clay suspending agent / thickener in the form of a gel.   2. Anhydrous cream according to claim 1, ca-   characterized in that the oil absorbing material constitutes   kills about 10 to 50% by weight of the composition and is chosen from the group consisting of talc, starches, clay, crystalline cellulose and derived products   cereals and mixtures of these compounds.   3. Anhydrous cream according to claim 2, ca-   characterized in that the antiperspirant and / or deodorant agent   health is in powder form and represents approximately 10 to % by weight of the composition.   4. Cream according to claim 1, characterized in that the suspending / thickening agent in the form of a gel, represents approximately 1 to 20% by weight of   the composition, this gel containing approximately 0.1 to 10% of ar-   gile gel in a non-polar excipient.   5. Cream according to claim 4, characterized in that it also contains approximately 0.1 to 6% of a metal salt of a fatty acid chosen from the group consisting of zinc, aluminum, lithium salts ,   of calcium and magnesium of saturated and unsaturated acids turés in C12-C22   6. Anhydrous cream according to claim 4, ca-   characterized in that the antiperspirant is chosen in   the group consisting of aluminum and zirconia salts   nium or complexes and mixtures of these products.   7. Cream according to claim 4, characterized   in that the gel is a bentonite gel and that the exci-   nonpolar pient is chosen from the group consisting of fatty esters, volatile silicones, volatile hydrocarbons, fatty alcohols, ethoxylated fatty alcohols and   propoxylates and mixtures of these substances.   8. Cream according to claim 7, characterized in that it also contains approximately 0.1 to 5% by weight of a nonionic emulsifier chosen from the group consisting of   killed by ethers and alkoxylated fatty alcohols.   9. Cream according to claim 6, characterized   in that the antiperspirant is a complex with gly-   cine of aluminum chlorohydroxide and zirconium hydroxychloride, volatile silicone is cyclomethicone   and the oil absorbing material is starch.   10. Cream according to claim 5, characterized in that it also contains approximately 0.5 to 10% in   weight of at least one amide of a higher fatty acid.   11. A method of preparing an anhydrous cream as defined in claim 1, characterized in that the suspending agent is mixed in the form of a clay gel with the volatile silicone excipient and the mixture is heated to temperature from about 100 to 1050C up to   a viscous solution is formed, then we arm-   se and the antiperspirant / deodorant powder and the oil absorbing powder are mixed with this viscous solution to form a stable viscous hot mobile mixture homogenizes this hot mobile mixture and it is cooled   to form a homogeneous non-mobile cream.   12. Method according to claim 11, character-   laughed in that the clay gel is formed in situ from clay, non-polar excipient and wetting agent   after homogenization of the mixture in the silicone excipient.