as) United States
`a2) Patent Application Publication co) Pub. No.: US 2014/0199252 Al
`(43) Pub. Date: Jul. 17, 2014
`
`Yarlagaddaet al.
`
`US 20140199252A1
`
`(54) SILICONE-FREE ANTIPERSPIRANT
`COMPOSITIONS AND METHODS FOR
`MANUFACTURINGSILICONE-FREE
`ANTIPERSPIRANT COMPOSITIONS
`
`(71) Applicant: The Dial Corporation, Scottsdale, AZ
`(US)
`
`(72)
`
`Inventors: Travis T. Yarlagadda, Lenexa, KS (US);
`Haley Austin, Gilbert, AZ (US)
`
`(73) Assignee: The Dial Corporation, Scottsdale, AZ
`(US)
`
`(21) Appl. No.: 14/216,726
`
`(22)
`
`Filed:
`
`Mar. 17, 2014
`
`Related U.S. Application Data
`
`(62) Division of application No. 13/349,760,filed on Jan.
`13, 2012, now abandoned.
`
`Publication Classification
`
`(51)
`
`Int. Cl.
`AGIK 8/31
`A61Q 15/00
`(52) U.S.CL
`CPC .. A61K 8/31 (2013.01); A61Q 15/00 (2013.01)
`USPC ceccccssssssssssssssssssveessessesssssssssssessssnsnseenes 424/66
`
`(2006.01)
`(2006.01)
`
`(57)
`
`ABSTRACT
`
`Silicone-free antiperspirant compositions and methods for
`fabricating silicone-free antiperspirant compositionsare pro-
`vided. In accordance with an exemplary embodiment, an
`antiperspirant composition includes an active antiperspirant
`compound, steary! alcohol, a C14-C16 fatty alcohol, and a
`carrier fluid. The carrier fluid is composedofa first volatile
`hydrocarbon componentselected from a C12-C14 hydrocar-
`bon, a second volatile hydrocarbon selected from a C13-C16
`hydrocarbon,andat least one non-volatile hydrocarbon com-
`ponent.
`
`
`
`
`
`Petitioner Dr. Squatch
`Ex. 1027
`
`Petitioner Dr. Squatch
` Ex. 1027
`
`

`

`Patent Application Publication
`
`Jul. 17, 2014
`
`US 2014/0199252 Al
`
`
`
`
`
`Figure 1
`
`

`

`US 2014/0199252 Al
`
`Jul. 17, 2014
`
`SILICONE-FREE ANTIPERSPIRANT
`COMPOSITIONS AND METHODS FOR
`MANUFACTURING SILICONE-FREE
`ANTIPERSPIRANT COMPOSITIONS
`
`
`
`TECHNICAL FIELD
`
`[0001] The present invention generally relates to antiper-
`spirant compositions and methods for manufacturing antiper-
`spirant compositions, and moreparticularly relates to sili-
`cone-free antiperspirant compositions and methods for
`manufacturing silicone-free compositions.
`
`BACKGROUND
`
`[0002] Antiperspirants are popular personal care products
`used to prevent or eliminate perspiration and body odor
`caused by perspiration. Antiperspirants typically prevent the
`secretion of perspiration by blocking or plugging sweat-se-
`creting glands, such as those located at the underarms. Anti-
`perspirant solid sticks are desired by a large majority of the
`population because of the presence of active antiperspirant
`compoundsthat blockor preventthe secretion of perspiration
`and its accompanying odors and because of their case of
`application. A solid antiperspirant product is applied to the
`skin by swiping or rubbingthe stick acrossthe skin, typically
`of the underarm.
`
`[0003] Antiperspirant compositions often include volatile
`silicones, such as cyclomethicone (also known as cyclopen-
`tasiloxane), as a hydrophobic carrier fluid to provide smooth,
`dry spreadability during application. However, concerns have
`been raised regarding the ecological and environmental
`impact of cyclomethiconeandothervolatile silicones used in
`cosmetics.
`In fact, similar silicone compounds such as
`cyclotetrasiloxanes have largely been removed from cos-
`metic use already.
`[0004] Accordingly,it is desirable to provide antiperspirant
`compositions that contain substantially no silicone. In addi-
`tion,
`it is desirable to provide methods for manufacturing
`silicone-free antiperspirant compositions. Furthermore, other
`desirable features and characteristics will become apparent
`from the subsequent detailed description and the appended
`claims, taken in conjunction with the accompanying draw-
`ings and this background.
`
`BRIEF SUMMARY
`
`and
`compositions
`antiperspirant
`Silicone-free
`[0005]
`methods for fabricating silicone-free antiperspirant compo-
`sitions are provided.
`In accordance with an exemplary
`embodiment, an antiperspirant composition includes an
`active antiperspirant compound, stearyl alcohol, a C14-C16
`fatty alcohol, and a carrier fluid. The carrier fluid is composed
`of a first volatile hydrocarbon component selected from a
`C12-C14 hydrocarbon,
`a
`second volatile hydrocarbon
`selected from a C13-C16 hydrocarbon,andat least one non-
`volatile hydrocarbon component.
`[0006]
`Inaccordance with another exemplary embodiment,
`an antiperspirant composition includes an active antiperspi-
`rant compound,stearyl alcohol present in an amountof from
`about 15.0 to about 22.0 weight percent of the composition,
`cetyl alcohol present in an amountof from about0.3 to about
`6.0 weight percent of the composition, and a silicone-free
`carrier fluid present in an amountof from about 25.0 to about
`50.0 weight percent of the composition. The silicone-free
`carrier fluid is composedofa first volatile hydrocarbon com-
`
`ponentselected from a C12-C14 hydrocarbon,a secondvola-
`tile hydrocarbon componentselected from a C13-C16 hydro-
`carbon, and a non-volatile hydrocarbon component.
`[0007]
`In accordance with an exemplary embodiment, a
`methodfor fabricating a silicone-free antiperspirant compo-
`sition combines a C14-C16 fatty alcohol and stearyl alcohol
`inaC14-Cl16 fatty alcohol:stearyl alcoholratio of from about
`1:2.5 to about 1:60. The stearyl alcohol and the C14-C16 fatty
`alcohol are melted. In the method,a carrier fluid is added to
`the steary] alcohol and the C14-C16 fatty alcohol. The carrier
`fluid is composedofa first volatile hydrocarbon component
`selected from a C12-Cl4 hydrocarbon, a second volatile
`hydrocarbon componentselected from a C13-C16 hydrocar-
`bon, and a non-volatile hydrocarbon component. The method
`forms a melted mixture, and pours the melted mixture into a
`mold. The melted mixture is allowed to cool to ambient
`temperature.
`
`BRIEF DESCRIPTION OF THE DRAWING
`
`[0008] The present invention will hereinafter be described
`in conjunction with the following drawing FIGURE,
`wherein:
`
`FIG. 1 is a perspective view of a silicone-free anti-
`[0009]
`perspirant composition in accordance with an exemplary
`embodiment.
`
`DETAILED DESCRIPTION OF THE INVENTION
`
`[0010] The following detailed description of the invention
`is merely exemplary in nature andis not intended to limit the
`invention or the application and uses of the invention. Fur-
`thermore, there is no intention to be bound by anytheory
`presented in the preceding backgroundofthe inventionor the
`following detailed description of the invention.
`[0011] The various embodiments contemplated herein
`relate to a silicone-free antiperspirant composition. As used
`herein, the term “silicone” means any polymer comprising
`silicon, carbon, hydrogen, and oxygen. Further, as used
`herein,the term “silicone-free” means comprising nosilicone
`or comprising silicone in an amount that does not provide a
`perceivable chemical or mechanical effect, whether micro-
`scopic or macroscopic, to the antiperspirant composition (or
`to the carrier fluid) compared to antiperspirant compositions
`(or carrier fluids) without silicone. For example, the antiper-
`spirant composition (or carrier fluid) may contain no more
`than 5.0 weight percentsilicones relative to the total antiper-
`spirant composition (ortotal carrier fluid). To provide similar
`characteristics to conventional antiperspirants using sili-
`cones, various embodiments herein comprise a silicone-free
`carrier fluid that is composedofa first volatile hydrocarbon
`componentselected from a C12-C14 hydrocarbon, a second
`volatile hydrocarbon component selected from a C13-C16
`hydrocarbon, and a non-volatile hydrocarbon component.
`The substantially silicone-free carrierfluid provides volatility
`similar to that provided by volatile silicones and feels similar
`to cosmetics using volatile silicones.
`[0012]
`Further, it is noted that various embodiments of the
`silicone-free antiperspirant compositions include stearyl
`alcohol as a desired structurant but do not exhibit visible
`surface crystals upon manufacture. In this regard, the various
`embodiments include a C14-C16 fatty alcohol, such as cetyl
`alcohol. While stearyl alcohol1s a desired structurantin anti-
`perspirant compositions because ofits ability to impart struc-
`ture and hardness to the compositions, in certain composi-
`
`

`

`US 2014/0199252 Al
`
`Jul. 17, 2014
`
`tions it may causevisible crystals to form atthe surface of the
`compositions after manufacture. It is believed that the C14-
`C16 fatty alcohol present in sufficient amounts ofthe sili-
`cone-free antiperspirant composition, formsa fatty alcohol
`matrix with the stearyl alcohol that prevents the visible crys-
`tals from forming.
`the silicone-free
`[0013]
`In one exemplary embodiment,
`antiperspirant composition contemplated herein is a uniform
`solid stick, such as an invisible solid, as shown in FIG. 1. The
`illustrated silicone-free antiperspirant product 10 includes a
`silicon-free antiperspirant composition 12. Silicone-free anti-
`perspirant composition 12 has an application surface 14 that
`is substantially dome-shaped and that is configured to be
`applied to skin, such as, for example, an underarm. Further,
`silicone-free antiperspirant composition 12 is disposed in a
`containeror dispenser 16 for dispensingsilicone-free antiper-
`spirant composition 12 to the skin.
`[0014] The various embodiments ofthe silicone-free anti-
`perspirant composition contemplated herein comprise a
`water-soluble active antiperspirant compound. Active anti-
`perspirant compounds contain at least one active ingredient,
`typically metal salts, that are thought to reduce perspiration
`by diffusing through the sweat ducts of apocrine glands
`(sweat glands responsible for body odor) and hydrolyzing in
`the sweat ducts, where they combine with proteins to form an
`amorphousmetal hydroxide agglomerate, plugging the sweat
`ducts so perspiration cannotdiffuse to the skin surface. Some
`active antiperspirant compoundsthat may be usedin thefirst
`and/or secondportions include astringent metallic salts, espe-
`cially inorganic and organic salts of aluminum, zirconium,
`and zinc, as well as mixtures thereof. Particularly preferred
`are aluminum-containing and/or zirconium-containing salts
`or materials, such as aluminum halides, aluminum chlorohy-
`drates, aluminum hydroxyhalides, zirconyl oxyhalides, zir-
`conyl hydroxyhalides, and mixtures thereof. Exemplaryalu-
`minum salts include those having the general formula Al,
`(OH),Cl,x(H,O), wherein a is from 2 to about 5; the sum of
`a and b is about 6; x is from about 1 to about 6; and wherein
`a, b, and x may have non-integer values. Exemplary zirco-
`nium salts include those having the general formula ZrO(OH)
`o-aCl,X (H2O0), wherein a is from about 1.5 to about 1.87, x is
`from about 1 to about 7, and wherein a and x may both have
`non-integer values. Particularly preferred zirconium salts are
`those complexesthat additionally contain aluminum andgly-
`cine, commonly known as ZAG complexes. These ZAG com-
`plexes contain aluminum chlorohydroxide and zirconyl
`hydroxy chloride conforming to the above-described formu-
`las. Examplesof active antiperspirant compoundssuitable for
`use in the various embodiments contemplated herein include
`aluminum dichlorohydrate, aluminum zirconium octachloro-
`hydrate, aluminum sesquichlorohydrate, aluminum chloro-
`hydrex propylene glycol complex, aluminum dichlorohydrex
`propylene glycol complex, aluminum sesquichlorohydrex
`propylene glycol complex, aluminum chlorohydrex polyeth-
`ylene glycol complex, aluminum dichlorohydrex polyethyl-
`ene glycol complex, aluminum sesquichlorohydrex polyeth-
`ylene glycol complex, aluminum zirconiumtrichlorohydrate,
`aluminum zirconium tetrachlorohydrate, aluminum zirco-
`nium pentachlorohydrate, aluminum zirconium octachloro-
`hydrate, aluminum zirconium trichlorohydrex glycine com-
`plex,
`aluminum zirconium tetrachlorohydrex
`glycine
`complex, aluminum zirconium pentachlorohydrex glycine
`complex, aluminum zirconium octachlorohydrex glycine
`complex, zirconium chlorohydrate, aluminum chloride, alu-
`
`minum sulfate buffered, and the like, and mixtures thereof. In
`a preferred embodiment, the antiperspirant compoundis alu-
`minum zirconium trichlorohydrate GLY. In another embodi-
`ment, the silicone-free antiperspirant composition comprises
`an active antiperspirant compoundpresent in the amount of
`10.0 to about 25.0 weight percent (USP). As used herein,
`weight percent (USP)or wt. % (USP) of an antiperspirantsalt
`is calculated as anhydrous weight percent in accordance with
`the U.S.P. method, as is knownin the art. This calculation
`excludes any bound water and glycine.
`[0015] Thesilicone-free antiperspirant composition further
`comprises a hydrophobic carrier fluid. The carrier fluid is a
`stable, homogeneous mixture combining multiple hydrocar-
`bons ofdifferent structures. Specifically, the carrier fluid is
`composedofa first volatile hydrocarbon component, a sec-
`ond volatile hydrocarbon component, and a non-volatile
`hydrocarbon component. The volatile hydrocarbon compo-
`nents provide a level of volatility that approximatesthe sili-
`cone compoundstypically used in cosmetics, while the non-
`volatile component provides aesthetic properties similar to
`the replaced volatile silicone compounds.
`[0016]
`In one embodiment, the volatile hydrocarbon com-
`ponents are straight or branched chain hydrocarbonsoriso-
`paraffins, such as isododecane. In another embodiment, the
`volatile hydrocarbon components are isoalkanes having dif-
`ferent chain lengths. In such an embodiment,thefirst volatile
`hydrocarbon componenthas chains ranging from C12-C14,
`while the second volatile hydrocarbon componenthas chains
`ranging from C13-C16. Typically, the second volatile hydro-
`carbon component has chains that are longer than the first
`volatile hydrocarbon, though the inverse may betrue or the
`chains may beof equal length. In an exemplary embodiment,
`the carrier fluid is comprised of from about 20 to about 80
`weight percent, such as about 30 weight percent, ofthefirst
`volatile hydrocarbon component, and from about 20 to about
`80 weight percent, such as about 60 weight percent, of the
`second volatile hydrocarbon component.
`[0017] The non-volatile hydrocarbon component may
`include “mixed”alkanes ranging from C13-C15 alkanes to
`C18-C21 alkanes and containing various amounts of cycloal-
`kanes and n-alkanes as well as the branched chainedisopar-
`affins or cosmetically acceptable oils. In an embodiment
`wherein the non-volatile hydrocarbon componentis a mixed
`alkane with chainsof different chemistries ranging from C13
`to C21, the mixed alkaneis used at concentrations from about
`5 to about 20 weightpercent, such as about 10 weightpercent,
`of the carrier fluid.
`
`[0018] The non-volatile hydrocarbon component may
`include an isohexadecane, isoalkanes such as a C13-C16
`isoparaffin, straight chained alkanes such as a C13-C15
`alkane, cycloalkanes, a mixture of isoalkanes and mixed
`structure hydrocarbonsselected from linear, branched, and
`cyclohydrocarbons; and/or a C13-C21 straight or branched
`chain alkyl ester of a straight or branched chain carboxylic
`acid. The non-volatile hydrocarbon component may further
`include cosmetically acceptable oils such as
`isopropyl
`myristate,
`isopropyl palmitate, mineral
`oil,
`isononyl
`isononanoate, polybutenes, polyisobutenes and hydroge-
`nated polyisobutenes.
`[0019]
`In an exemplary embodiment, the carrier fluid is
`present in an amountof from about 25.0 to about 50.0 weight
`percent of the silicone-free antiperspirant composition. In
`another exemplary embodiment,the carrier fluid is composed
`
`

`

`US 2014/0199252 Al
`
`Jul. 17, 2014
`
`of about 35 weight percent C12-C14 isoparaffin, about 55
`weight percent C13-C16 isoparaffin, and about 10 weight
`percent C13-C15 alkane.
`[0020] The silicone-free antiperspirant composition further
`includesstearyl alcohol. Stearyl alcoholis a fatty alcoholthat
`serves as a structurant that provides, at least in part, the solid
`consistency of the silicone-free antiperspirant composition.
`In one exemplary embodiment, stearyl alcohol is present in
`the silicone-free antiperspirant composition in an amount of
`from about 15.0 to about 22.0 wt. % of the total weightof the
`antiperspirant composition. In this regard, in one embodi-
`ment, the stearyl alcohol, and other optional structurants as
`discussed below,is present in an amountsufficient to impart
`a hardness to the silicone-free antiperspirant composition in
`the range of from about 150 to about 350 grams-force, pref-
`erably in the range of from about 165 to about 215 grams-
`force, as measured by a TA.XT2i Texture Analyzer at the
`following settings: pre-speed—1.0 millimeters/second (mm/
`s); trigger force—5.0 grams (g);
`test speed—1.0 mm/s;
`retraction speed—5.0 mm/s; distance—5.0 mm;
`and
`cycles—1. The TA.XT21 is manufactured by Stable Micro
`Systems Ltd. of the United Kingdom.
`(hereinafter
`[0021] Other
`structurants and/or gellants
`referred to collectively as “structurants”) that, along with
`stearyl alcohol, can facilitate the solid consistency of the
`silicone-free antiperspirant composition include naturally-
`occurring or synthetic waxy materials or combinations
`thereof. Suitable structurants, including waxes and gellants,
`are often selected from fatty alcohols containing from 12 to
`30 carbons, such as beheny]alcoholandsterols such as lanos-
`terol. As used herein, the term “fatty” means a long chain
`aliphatic group, such asat least 8 or 12 linear carbons, which
`is frequently not branched (linear) andis typically saturated,
`but which can alternatively be branched and/or unsaturated.It
`is possible forthe fatty acid to contain a hydroxyl group, as in
`12-hydroxystearic acid, for example as part of a gellant com-
`bination, and to employ amidoorester derivates thereof.
`[0022] Other structurants can comprise hydrocarbon waxes
`such as paraffin waxes, microcrystalline waxes, ceresin,
`squalene, and polyethylene waxes. Other suitable struc-
`turants are waxes derived or obtained from plants or animals
`such as hydrogenated castor oil, hydrogenated soybeanoil,
`carnabau, spermacetti, candelilla, beeswax, modified bees-
`waxes, and Montan wax and individual waxy components
`thereof. It is also suitable herein to employ a mixture of wax
`structurants. Suitable mixtures of structurants can reduce the
`
`visibility ofactive antiperspirant compoundsdeposited on the
`skin andresult in either a soft solid or a firm solid.
`
`[0023] The various embodiments ofthe silicone-free anti-
`perspirant composition contemplated herein further comprise
`cetyl alcohol (comprising 16 carbons), myristyl alcohol
`(comprising 14 carbons), or a combination thereof(hereinaf-
`ter, referred to collectively as a “C14-C16 fatty alcohol’). As
`noted above, based on information andbelief, the C14-C16
`fatty alcohols likely form a fatty alcohol matrix with stearyl
`alcohol that prevents the formation of crystals on the surface
`of the silicone-free antiperspirant composition upon manu-
`facture thereof. In one exemplary embodiment, the C14-C16
`fatty alcohols are present in an amountof from about 0.3 to
`about 6.0 wt. % ofthe silicone-free antiperspirant composi-
`tion. In another exemplary embodiment, the C14-C16 fatty
`alcohols andthesteary] alcohol are present ina C14-C16 fatty
`alcohol:stearyl alcohol ratio of from about 1:2.5 to about
`1:60, preferably 1:14.
`
`In some embodiments, because of the low melting
`[0024]
`point of the C14-C16 fatty alcohols (about 49° C. for cetyl
`alcohol and about 37-39° C. for myristyl alcohol) compared
`to stearyl alcohol (about 60° C.), the addition of the C14-C16
`fatty alcohols may causethe silicone-free antiperspirant com-
`position to have a lower than desired melting point. Whileitis
`desirable for the silicone-free antiperspirant composition to
`slightly melt upon application to skin, it is also desirable for
`the silicone-free antiperspirant composition to be thermally
`stable and maintain a solid form at 45° C. Accordingly, in an
`exemplary embodiment,it may be desirable to include hydro-
`genated castor oil in the silicone-free antiperspirant compo-
`sition in an amount in the range of from about 3.0 to about
`10.0 wt. % of the antiperspirant compound.
`In another
`optional embodiment, it may be desirable to add high molecu-
`lar weight (high MW)polyethyleneto the antiperspirant com-
`pound.As used herein, the term “high molecular weightpoly-
`ethylene” or “high MW polyethylene” means polyethylene
`having a molecular weight of from about 200 to about 5000
`daltons (Da). High MW polyethylene has a melting point of
`about 70° C.-100° C. and can raise the melting point of the
`silicone-free antiperspirant composition. In one embodiment,
`the silicone-free antiperspirant composition comprises from
`about 1.0 to about 5.0 wt. % high MW polyethylene. In a
`preferred embodiment, the high MW polyethylene has a
`molecular weight of about 500 Da.
`[0025] The antiperspirant compositions also may comprise
`a highrefractive index (R.I.) hydrophobic compoundserving
`as a residue masking agent. As used herein, the term “high
`refractive index” means a refractive index of no less than
`about 1.4. The high R.I. hydrophobic compoundfacilitates
`the minimization and/or prevention of a white residue on the
`skin by maskingthe active antiperspirant salt that stays upon
`the skin upon evaporation of the carrier, discussed in more
`detail below. Examples of high R.I. hydrophobic compounds
`for use in the antiperspirant products include PPG-14 butyl
`ether and C,,-C,; alkyl benzoate, such as Finsolv TN®avail-
`able from Innospec of the United Kingdom.In a preferred
`embodiment,
`the antiperspirant product comprises from
`about 10.0 to about 18.0 wt. % PPG-14 butyl ether.
`[0026]
`In addition to the ingredients identified above, the
`silicone-free antiperspirant composition may comprise addi-
`tives, such as those used in conventional antiperspirants.
`These additives include, but are not limited to, fragrances,
`including encapsulated fragrances, dyes, pigments, preserva-
`tives, antioxidants, moisturizers, and the like. These optional
`ingredients can be includedinthe silicone-free antiperspirant
`composition in an amount of 0 to about 20 wt. %. In a
`preferred embodiment, the silicone-free antiperspirant com-
`position comprises from about 0.5 to about 2.5 wt. % fra-
`grance. In another preferred embodiment, the silicon-free
`antiperspirant composition comprises from about 1.0 to about
`6.0 wt. % aluminum starch octenylsuccinateor talc to provide
`a dry feel to the skin upon application.
`[0027] The antiperspirant compositions, accordingto vari-
`ous embodiments, can be prepared by first combining the
`stearyl alcohol, the C14-C16 fatty alcohol, and the polyeth-
`ylene, ifused, and then melting them or, alternatively, melting
`each component and then mixing them, to form a melted
`mixture. The remaining ingredients, including the silicone-
`free carrier fluid can be added to the melted mixture, either
`separately or as one or more premixtures, to form a liquid
`active mixture. The active mixture is then poured into molds
`and permitted to cool at room temperature or with theassis-
`
`

`

`US 2014/0199252 Al
`
`Jul. 17, 2014
`
`tance of a cooling chamber or cooling tunnel to hasten the
`solidification of the invisible solid antiperspirant product.
`[0028] The following is an exemplary embodimentof a
`silicone-free antiperspirant composition, with each of the
`components set forth in weight percent of the silicone-free
`antiperspirant composition. The example is provided for
`illustration purposesonly andis not meantto limit the various
`embodimentsofthe silicone-free antiperspirant composition
`in any way. All materials are set forth in weight percent.
`
`EXAMPLE1
`
`manufacture. In this regard, the various embodiments com-
`prise aC14-C16 fatty alcohol. As noted above, while stearyl
`alcohol is a desired structurantin antiperspirant compositions
`becauseof its ability to impart structure and hardness to the
`compositions, in certain compositions it may cause crystals to
`form at the surface of the compositions after manufacture. It
`is believed that the C14-C16 fatty alcohol presentin sufficient
`amounts in the silicone-free antiperspirant composition,
`forms a fatty alcohol matrix with the stearyl alcohol that
`prevents the crystals from forming.
`[0033] While at least one exemplary embodiment has been
`presented in the foregoing detailed description, it should be
`appreciated that a vast numberofvariations exist. It should
`also be appreciated that the exemplary embodimentor exem-
`plary embodimentsare only examples, and are not intended to
`Ingredient
`limit the scope, applicability, or configuration of the claimed
`SiClone ® SR5
`subject matter in any way. Rather, the foregoing detailed
`Aluminum zirconium
`description will provide those skilled in the art with a conve-
`trichlorohydrex GLY
`nient road map for implementing an exemplary embodiment
`Stearyl alcohol
`ofthe invention,it being understoodthat various changes may
`Cetyl alcohol
`Hydrogenated castoroil
`be made in the function and arrangement of elements
`PPG-14 butyl ether
`described in an exemplary embodiment without departing
`Aluminum Starch
`from the scope defined by the claims, which includes known
`Octenylsuccinate
`equivalents and foreseeable equivalents at the timeoffiling
`Polyethylene
`1.
`Fragrance
`this patent application.
`1.Asilicone-free antiperspirant composition comprising:
`Total
`100.00
`an active antiperspirant compound;
`stearyl alcohol;
`a C14-Cl6 fatty alcohol; and
`a carrier fluid composed ofa first volatile hydrocarbon
`componentthat is aC12-C14 isoparaffin, a second vola-
`tile hydrocarbon componentthat is aC13-C16 isoparaf-
`fin, and a non-volatile hydrocarbon componentthat is a
`C13-C15 alkane, wherein the carrier fluid is present in
`an amount of from about 25.0 to about 50.0 weight
`percent of the total weight of the silicone-free antiper-
`spirant composition.
`2. The silicone-free antiperspirant composition of claim 1
`wherein the C14-C16 fatty alcoholis cetyl alcohol.
`3. The silicone-free antiperspirant composition of claim 1
`wherein the C14-C16 fatty alcoholis present in an amount of
`from about 0.3 to about 6.0 weight percent ofthe silicone-free
`antiperspirant composition.
`4. The silicone-free antiperspirant composition of claim 1
`wherein the C14-C16 fatty alcohol is present in a C14-C16
`fatty alcohol:stearyl alcoholratio offrom about 1:2.5 to about
`1:60.
`
`[0029]
`
`Wt. %
`32.57
`22.03
`
`17
`
`5
`7.8
`14
`3
`
`where SiClone® SR5is a silicone-free carrierfluid available
`
`from Presperse LLC of Somerset, N.J. and composed of
`C12-C14 isoparaffin, C13-C16 isoparaffin, and C13-C15
`alkane, and where Performalene 500is polyethylene having a
`molecular weight of 500 Da.
`[0030] The antiperspirant composition of Example 1 was
`manufactured by adding 880 grams(g) silicone-free carrier
`fluid to a vessel andinitiating agitation. Utilizing high shear
`mixing, 859.48 g aluminum zirconium pentachlorohydrex
`GLY complex was incrementally added to form an active
`premix having a consistent fluid appearance withoutanypar-
`ticulates.
`
`Inanother mixing container, 39 g hydrogenated cas-
`[0031]
`tor oil, 85 g stearyl alcohol, 70 g PPG-14 butyl ether, 2.5 g
`cetyl alcohol, and 10 g Performalene 500 were added and heat
`wasinitiated to melt the components. Agitation was slowly
`initiated as the mixture became molten. The mixture was not
`permitted to exceed 99° C. Whenall of the components were
`molten, with continuous agitation, 252.5 g of the active pre-
`mix was incrementally added while the batch temperature
`was maintained between 59° C. and 64° C. and mixing was
`continued until the mixture was homogeneous. Thesilicone-
`free antiperspirant composition then was cooled to 49° C.,
`poured into a suitable mold and permitted to cool to ambient
`temperatures. As used herein, “permitted to cool to ambient
`temperatures” meanseither that the silicone-free antiperspi-
`rant composition is exposed to the ambient for a sufficient
`amount oftime that it cools to the ambient temperatureorthat
`it is subjected to an artificial cooling means, such as a fan,
`refrigerator, or the like, that cools the silicone-free antiper-
`spirant composition to ambient temperatures.
`[0032] Accordingly, various embodiments relating to an
`antiperspirant composition thatuses a carrier fluid composed
`of hydrocarbons rather than volatile silicone are provided.
`Thesilicone-free antiperspirant includes stearyl alcohol as a
`desired structurant yet does not exhibit surface crystals upon
`
`5. The silicone-free antiperspirant composition of claim 1
`further comprising a high molecular weight polyethylene in
`an amountoffrom about1.0 to about 5.0 weight percent ofthe
`total weightofthe silicone-free antiperspirant composition.
`6. The silicone-free antiperspirant composition of claim 1
`further comprising hydrogenated castor oil in an amount of
`from about 3.0 to about 10.0 weight percent of the total
`weight of the silicone-free antiperspirant composition.
`7. The silicone-free antiperspirant composition of claim 1
`further comprising a residue masking agent in an amount of
`from about 8.0 to about 18.0 weight percent of the total
`weight of the silicone-free antiperspirant composition.
`8. The silicone-free antiperspirant composition of claim 1
`further comprising aluminum starch octenylsuccinateortalc
`in an amountof from about1.0 to about 6.0 weight percent of
`the total weight of the silicone-free antiperspirant composi-
`tion.
`
`

`

`US 2014/0199252 Al
`
`Jul. 17, 2014
`
`9. (canceled)
`10. The silicone-free antiperspirant composition of claim 9
`wherein the carrier fluid is comprised of about 35 weight
`percent C12-C14 isoparaffin, about 55 weight percent C13-
`C16 isoparaffin, and about 10 weight percent C13-C15
`alkane.
`
`11. (canceled)
`12. The silicone-free antiperspirant composition of claim 1
`wherein at least one of the volatile hydrocarbon components
`is chosen from the group consisting of a straight or branched
`chain hydrocarbon, an isoparaffin, isododecane, and a C12-
`C14 isoparaffin.
`13. The silicone-free antiperspirant composition of claim
`12 wherein the non-volatile hydrocarbon componentis cho-
`sen from the group consisting of a C13-C21 hydrocarbon;
`isohexadecane; a mixture of isoalkanes and mixed structure
`hydrocarbons selected from linear, branched, and cyclohy-
`drocarbons; a C13-C15 alkane; a C13-C16 isoparaffin; aC13-
`C21 straight or branched chain alkyl ester of a straight or
`branched chain carboxylic acid; and mineraloil.
`14. An antiperspirant composition comprising:
`an active antiperspirant compound;
`stearyl alcohol present in an amount of from about 15.0 to
`about 22.0 weight percent of the total weight of the
`antiperspirant composition;
`cetyl alcohol present in an amount of from about 0.3 to
`about 6.0 weight percent of the total weight of the anti-
`perspirant composition;
`a silicone-free carrier fluid present in an amount of from
`about 25.0 to about 50.0 weight percent of the compo-
`sition, wherein the silicone-free carrier fluid is com-
`posed ofa first volatile hydrocarbon componentselected
`from a C12-C14 hydrocarbon, a second volatile hydro-
`carbon componentselected from a C13-C16 hydrocar-
`bon, and a non-volatile hydrocarbon component,
`hydrogenated castoroil in an amountof from about 3.0 to
`about 10.0 weight percent of the total weight of the
`antiperspirant composition;
`aresidue masking agent in an amount of from about8.0 to
`about 18.0 weight percent of the composition;
`polyethylene in an amountof from about 1.0 to about 5.0
`weight percent of the composition; and
`
`aluminum starch octenylsuccinate or talc in an amountof
`from about 1.0 to about 6.0 weight percent of the com-
`position.
`15. The antiperspirant composition ofclaim 14 wherein the
`first volatile hydrocarbon component is a C12-C14 isoparat-
`fin, the second volatile hydrocarbon componentis a C13-C16
`isoparaffin, and the non-volatile hydrocarbon componentis a
`C13 -C15 alkane.
`16. The antiperspirant composition ofclaim 14 wherein the
`silicone-free carrier fluid is comprised of about 35 weight
`percent C12-C14 isoparaffin, about 55 weight percent C13-
`C16 isoparaffin, and about 10 weight percent C13-C15 alkane
`of the total weight of the antiperspirant composition.
`17. The antiperspirant composition of claim 14 whereinat
`least one of the volatile hydrocarbon components is chosen
`from the group consisting of a straight or branched chain
`hydrocarbon, an isoparaffin, isododecane, and a C12-C14
`isoparatfin.
`18. The antiperspirant composition ofclaim 17 wherein the
`non-volatile hydrocarbon component
`is chosen from the
`group consisting of aC13-C21 hydrocarbon; isohexadecane;
`a mixture of isoalkanes and mixed structure hydrocarbons
`selected from linear, branched, and cyclohydrocarbons; a
`C13-C15 alkane; a C13-C16 isoparaffin; a C13-C21 straight
`or branched chain alkyl] ester of a straight or branched chain
`carboxylic acid; and mineraloil.
`19. (canceled)
`20. A methodfor fabricating a silicone-free antiperspirant
`composition, the method comprising the stepsof: