WO2018141032A1 - Composition antiperspirante anhydre - Google Patents

Composition antiperspirante anhydre Download PDF

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Publication number
WO2018141032A1
WO2018141032A1 PCT/BR2017/050016 BR2017050016W WO2018141032A1 WO 2018141032 A1 WO2018141032 A1 WO 2018141032A1 BR 2017050016 W BR2017050016 W BR 2017050016W WO 2018141032 A1 WO2018141032 A1 WO 2018141032A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
composition
antiperspirant composition
anhydrous antiperspirant
polyamide
Prior art date
Application number
PCT/BR2017/050016
Other languages
English (en)
Inventor
Pedro Tupinamba Werneck BARROSO
Clara Anhel FERRAZ
Original Assignee
L'oreal
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by L'oreal filed Critical L'oreal
Priority to PCT/BR2017/050016 priority Critical patent/WO2018141032A1/fr
Priority to BR112019012194-3A priority patent/BR112019012194A2/pt
Publication of WO2018141032A1 publication Critical patent/WO2018141032A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/26—Aluminium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0216—Solid or semisolid forms
    • A61K8/0229—Sticks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/28—Zirconium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/88—Polyamides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q15/00—Anti-perspirants or body deodorants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/30—Characterized by the absence of a particular group of ingredients
    • A61K2800/31—Anhydrous

Definitions

  • the present invention relates to an antiperspirant composition and a method for controlling perspiration of the body and avoiding undesired stains on fabrics and skin, said composition comprises at least one suspending agent, at least one polyamide oil thickener, at least one antiperspirant active, in a cosmetically acceptable carrier.
  • Antiperspirant compositions are widely used in the world for controlling localized perspiration and thereby avoiding wet patches on human skin or clothing, which is considered unpleasant by the society. Also, such compositions avoid undesirable odors produced by the interaction of bacteria and sweat gland secretions, for said sweat glands are obstructed by the antiperspirants' active agents, limiting body transpiration.
  • the stick form can be distinguished from a gel or a paste in that in a stick, the formulated product can maintain its shape for extended time periods outside the package, wherein the product does not significantly lose its shape, except for the shrinkage due to solvent evaporation.
  • Sticks are perceived to be dry, moisturizing and easy to apply.
  • One of the most popular form of applying antiperspirant compositions is in stick format.
  • some drawbacks are usually pointed out by the customers, such as the presence of white stains on clothes and on skin.
  • Gallenic formulations of sticks typically contain a solvent vehicle such as cyclomethicone together with a waxy substance such as stearyl alcohol, alone or in combination with castor wax, in order to gel or thicken the suspension in a satisfactory form to create a suitable stick.
  • a solvent vehicle such as cyclomethicone together with a waxy substance such as stearyl alcohol, alone or in combination with castor wax, in order to gel or thicken the suspension in a satisfactory form to create a suitable stick.
  • the present invention is directed to an anhydrous antiperspirant composition in stick format comprising at least one suspending agent, at least one polyamide oil thickener, at least one antiperspirant active, in a cosmetically acceptable carrier.
  • the inventive anhydrous antiperspirant composition of the present invention significantly reduces the white stains relative to the prior art sticks and presents improved efficacy performance.
  • a method for avoiding undesired stains on fabrics and skin wherein an effective amount of the anhydrous antiperspirant composition of the present invention is applied on the keratinous material.
  • antiperspirant compositions of the present invention can comprise, consist of, or consist essentially of the essential elements and limitations of the present invention described herein, as well as any of the additional or optional ingredients, components, or limitations described herein.
  • the expression "at least one” means one or more and thus includes individual components as well as mixtures/combinations. All percentages, parts and ratios are by weight of the total composition, unless otherwise specified. All such weights as they pertain to listed ingredients are based on the specific ingredient level and, therefore, do not include solvents, carriers, by-products, filler or other minor ingredients that may be included in commercially available materials, unless otherwise specified.
  • Cosmetically acceptable means that the item in question is compatible with any keratinous substrate.
  • cosmetically acceptable carrier means a carrier that is compatible with any keratinous substrate.
  • anhydrous means that the antiperspirant composition of the present invention and the essential or optional components thereof, are substantially free of added or free water. From a formulation standpoint, this means that the antiperspirant compositions of the present invention contain less than about 2%, preferably less than about 1 %, more preferably less than about 0.5%, most preferably zero percent, by weight of free or added water.
  • the combination of at least one suspending agent and at least one polyamide oil thickener replacing the wax and structurants of gallenic formulations, as disclosed by the present invention provided an anhydrous antiperspirant composition that overcome the drawbacks previously pointed out.
  • the suspending agents are responsible to leave the antiperspirant actives, which are in a powder format, homogenous in the whole stick during filling and cooling.
  • the suspending agents used herein replace the structurants of the antiperspirants gallenic compositions.
  • the suspending agents are preferably clays, more preferably organoclays, which could be selected from hydrophobically treated clays and pre- activated clays.
  • Suitable suspending agents for the invention are, for example, montmorillionite, bentonite or hectorite; particularly chosen from disteardimonium hectorite, stearalkonium hectorite, quaternium-18 hectorite, quaternium-18 bentonite.
  • a preferred suspending agent according to the present invention includes disteardimonium hectorite, conventionally used as a suspending agent for cosmetics or the like.
  • disteardimonium hectorite commercially available under the trade name of "Bentone ® 38V", “Bentone ® 38 VCG”, these two being organic modified clay minerals; or Bentone Gel ® , this latter being pre-activated clay minerals, all by the company Elementis Specialties Inc. can be preferably used.
  • the suspending agents in the anhydrous antiperspirant composition of the present invention are preferably present in amounts ranging from about 1 % to 7% by weight, preferably about 2 to 6% by weight, more preferably about 2.5% to 5% by weight, relative to the total weight of the composition.
  • structurally refers to an essential ingredient used to thicken a suspension or to form solid gels, being responsible to leave the stick hard and in its format.
  • the waxes are thickeners usually employed in gallenic compositions reducing the extent to which light that can be transmitted through them and causing encapsulation of the water-soluble active ingredients.
  • the oil thickeners used herein substitute the waxes in order to avoid white stains of the stick and have a true invisible stick.
  • a composition according to the invention comprises at least one polyamide oil thickener.
  • Such polyamides may be ester-terminated or amide- terminated.
  • Non-limitative examples of ester and amide terminated polyamides that may be used as oil thickeners include those sold by the company Croda under the SylvaclearTM or OleoCraftTM tradenames and known by the INCI names ethylenediamine/hydrogenated dimer dilinoleate copolymer bis-di-C14-18 alkyl amide (SylvaclearTM A200V or A2614V); bis-stearyl ethylenediamine/neopentyl glycol/stearyl hydrogenated dimer dilinoleate copolymer (SylvaclearTM C75V); polyamide-3 (SylvaclearTM AF1900V); polyamide-4 (SylvaclearTM WF1500V); or ethylenediamine/stearyl dimer dilinoleate cop
  • the oil thickener comprises an ester-terminated polyamide, preferably the compound whose INCI name is ethylenediamine/stearyl dimer dilinoleate copolymer such as the product sold by the company Croda under the name OleoCraftTM LP-10-PA-(MV).
  • the oil thickener comprises an ester-terminated polyamide, preferably the compound whose INCI name is polyamide-3 such as the product sold by the company Croda under the name SylvaclearTM AF1900V.
  • the amount of the oil thickener in the anhydrous antiperspirant composition should be sufficient to cause the liquid vehicle to gel ⁇ i.e., become free-standing).
  • the polyamide oil thickener is preferably present in amounts ranging from about 0.1 to about 30% by weight of the composition, preferably in the range of about 5 to about 25%, more preferably in the range of about 10 to about 20%, by weight, relative to the total weight of the composition.
  • the antiperspirant anhydrous stick compositions of the present invention comprise particulate antiperspirant active suitable for application to human skin. These particulate actives must remain substantially unsolubilized in the anhydrous systems as described herein.
  • the antiperspirant active for use in the antiperspirant gel-solid stick compositions of the present invention include any compound, composition or other material having antiperspirant activity.
  • Preferred classes of suitable actives include aluminum salts, zirconium salts, aluminum and/or zirconium complexes, for example aluminum halides, aluminum hydroxy halides, zirconyl oxyhalides, zirconyl hydroxyhalides, and mixtures thereof.
  • preferred salts include activated aluminum chlorohydrate, aluminum chlorohydrate, aluminum pentachlorohydrate and aluminum zirconium tetrachlorohydrex gly.
  • Useful zirconium salts include zirconium hydroxy-chloride and zirconium oxychloride.
  • Various generally used actives will be known to those skilled in the art.
  • the concentration of particulate active in the composition should be sufficient to provide the desired perspiration wetness and odor control from the antiperspirant anhydrous stick formulation selected.
  • the antiperspirant active is preferably present in amounts ranging from about 0.1 to about 30% by weight, preferably in the range of about 10% to about 20% by weight, relative to the total weight of the composition.
  • the cosmetically acceptable carrier may function as an emollient oil and/or lubricant. It may also serve to facilitate uniform distribution of the antiperspirant material on the skin.
  • These may comprise silicone oils, natural or synthetic esters, hydrocarbons, fatty acids, fatty alcohols and mixtures thereof.
  • Silicone oils may be divided into the volatile and nonvolatile variety.
  • volatile refers to those materials which have a measurable vapor pressure at ambient temperature.
  • Volatile silicone oils are preferably chosen from cyclic (cyclomethicone) or linear polydimethylsiloxanes containing from 3 to 9, preferably from 4 to 5, silicon atoms.
  • Nonvolatile silicone oils useful as an emollient material include polyalkyl siloxanes, polyalkylaryl siloxanes and polyether siloxane copolymers.
  • the essentially nonvolatile polyalkyl siloxanes useful herein include, for example, polydimethyl siloxanes.
  • Natural ester emollients principally are based upon mono-, di- and triglycerides.
  • Representative glycerides include any vegetable oil, not being limitative to sunflower seed oil, cottonseed oil, primrose oil, castor and hydrogenated castor oils, rice bran oil, soybean oil, olive oil, safflower oil, shea butter, jojoba oil and combinations thereof.
  • Hydrocarbons which are suitable cosmetically acceptable carriers include apolar oils, such as petrolatum, mineral oil, C11 -C13 isoparaffins, polybutenes, and especially isohexadecane, available commercially as Permethyl 101 A from Presperse Inc.
  • apolar oils such as petrolatum, mineral oil, C11 -C13 isoparaffins, polybutenes, and especially isohexadecane, available commercially as Permethyl 101 A from Presperse Inc.
  • Fatty acids having from 10 to 30 carbon atoms may also be suitable as cosmetically acceptable carriers.
  • Illustrative of this category are pelargonic, lauric, myristic, palmitic, stearic, isostearic, oleic, linoleic, linolenic, hydroxystearic and behenic acids.
  • Fatty alcohols having from 10 to 30 carbon atoms are another useful category of cosmetically acceptable carrier.
  • Illustrative of this category are stearyl alcohol, lauryl alcohol, myristyl alcohol, oleyl alcohol and cetyl alcohol.
  • aliphatic fatty alcohols such as octyldodecanols are common cosmetic emollients that are particularly useful as coupling agents in anhydrous antiperspirant compositions because these solvents are readily soluble in non-polar volatile silicones and help to solubilize the gellant if included in the composition.
  • Preferred emollient oils are alkyl esters, such as PurSyn Ester 2E7 (neopentylglycol dihexanoate) manufactured by Exxon-Mobil; benzoate esters such as Finsolv TN (Trade Mark) manufactured by Finetex Inc.; hydrogenated polyalkenes, such as Panalane manufactured by Amoco and PureSyn PAO 2 (hydrogenated polydecene) manufactured by Exxon-Mobil; PPG ethers, such as Fluid AP (PPG-14 butylether) manufactured by Union Carbide; isopropyl palmitate; phenylsilicone; and isopropyl myristate.
  • alkyl esters such as PurSyn Ester 2E7 (neopentylglycol dihexanoate) manufactured by Exxon-Mobil
  • benzoate esters such as Finsolv TN (Trade Mark) manufactured by Finetex Inc.
  • hydrogenated polyalkenes such
  • Said compounds can be used alone or in a mixture thereof and may be used in amounts ranging from about 30% to 80%, in particular in the range of about 40% to 70%, and especially in the range of about 50% to 60%, all percentages being by weight of the total composition.
  • the antiperspirant compositions of the present invention may further comprise one or more optional components which may modify the physical or chemical characteristics of the compositions or serve as additional "active" components when deposited on the skin, provided that the optional components are physically and chemically compatible with the essential components described herein, or do not otherwise unduly impair product stability, aesthetics, or performance.
  • Non-limiting examples of such optional materials include components such as pH buffering agents; additional malodor controlling agents such as antiperspirant actives; fragrance materials; emollients; humectants; soothing agents; dyes and pigments; and related materials; preservatives; and soothing agents.
  • the present invention also provides a method for avoiding undesired stains on fabrics and skin, wherein an effective amount of the anhydrous antiperspirant composition of the present invention is applied on the keratinous material.
  • the formulations of the Examples provide antiperspirant products that are characterized by essentially complete absence of discernible whitening (to an experienced visual evaluator) and provide antiperspirant efficacy (as measured by Clinical gravimetric in vivo test).
  • the ingredients may be processed as described or conventionally known.
  • the Examples 1 and 2 are antiperspirant anhydrous compositions of the invention, which are made by combining and mechanically mixing the vehicle and the ethylene diamine/stearyl dimer dilinoleate copolymer and heating it until 85 °C. Once the temperature is at 85 °C, the mixture is stirred for 15 minutes. The suspending agent and its activator (propylene carbonate) are added and stirred for 10 minutes. In the end, the active ingredient in powder form and the fragrance are added. The mixture is poured into suitable containers.
  • Example 6 is a composition of the invention
  • Examples 7 and 8 are common prior art compositions
  • Example 9 represents the formulation of the Gamier antiperspirant known as Clarify.
  • compositions above were also compared with two additional compositions available in the market (Examples 10 and 1 1 ).
  • the first one is sold with the name of Dove Invisible Dry by Unilever (Example 10), and it presents the following formula: Cyclomethicone, Aluminum Zirconium Tetrachlorohydrex GLY, Stearyl Alcohol, C12-15 AlkyI Benzoate, PPG-14 Butyl Ether, Hydrogenated Castor Oil, Dimethicone, Polyethylene, perfume, Helianthus annuus Seed Oil, Steareth-100, BHT, Tocopheryl Acetate, Alpha- isomethyl lonone, Benzyl Salicylate, Butylphenyl Methylpropional, Cinnamyl Alcohol, Citronellol, Coumarin, Hexyl Cinnamal, Hydroxyisohexyl 3-cyclohexene Carboxaldehyde.
  • Rexona Powder also by Unilever (Example 1 1 ), which comprises Cyclomethicone, aluminum zirconium tetrachlorohydrex gly, stearyl alcohol, C12-15 alkyl benzoate, PPG-14 butyl ether, hydrogenated castor oil, dimethicone, polyethylene, perfume, Helianthus annuus seed oil, steareth-100, BHT, tocopheryl acetate, alpha-isomethyl ionone, benzyl salicylate, butylphenyl methylpropional, cinnamyl alcohol, citronellol, coumarin, hexyl cinnamal, hydroxyisohexyl 3-cyclohexene carboxaldehyde.
  • Unilever Example 1 1
  • Example 1 1 which comprises Cyclomethicone, aluminum zirconium tetrachlorohydrex gly, stearyl alcohol, C12-15 alkyl benzoate, P

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Inorganic Chemistry (AREA)
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Abstract

La présente invention concerne une composition antiperspirante anhydre comprenant : (a) au moins un agent de mise en suspension ; (b) au moins un épaississant huileux à base de polyamide ; (c) au moins un principe actif antiperspirant dans un véhicule cosmétiquement acceptable. La composition agit contre les odeurs corporelles et la perspiration sans laisser de résidu blanc visible sur la peau et/ou sans tacher un vêtement de l'utilisateur final. La présente invention concerne également le procédé consistant à éviter les taches blanches à l'aide de la composition antiperspirante anhydre telle que définie ci-dessus et l'utilisation de la combinaison de (a) au moins un agent de mise en suspension et (b) au moins un épaississant huileux à base de polyamide, pour la préparation d'une composition antiperspirante anhydre selon la présente invention.
PCT/BR2017/050016 2017-01-31 2017-01-31 Composition antiperspirante anhydre WO2018141032A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/BR2017/050016 WO2018141032A1 (fr) 2017-01-31 2017-01-31 Composition antiperspirante anhydre
BR112019012194-3A BR112019012194A2 (pt) 2017-01-31 2017-01-31 composição antitranspirante anidra, método para evitar as manchas indesejadas nos tecidos e na pele e utilização

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2017/050016 WO2018141032A1 (fr) 2017-01-31 2017-01-31 Composition antiperspirante anhydre

Publications (1)

Publication Number Publication Date
WO2018141032A1 true WO2018141032A1 (fr) 2018-08-09

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BR (1) BR112019012194A2 (fr)
WO (1) WO2018141032A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020007600A1 (fr) * 2018-07-03 2020-01-09 Unilever N.V. Composition antitranspirante comprenant de la zircone amorphe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020051758A1 (en) * 2000-08-31 2002-05-02 Heng Cai Clear antiperspirants and deodorants made with siloxane-based polyamides
US20050163736A1 (en) * 2004-01-27 2005-07-28 Heng Cai Dual phase stick

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020051758A1 (en) * 2000-08-31 2002-05-02 Heng Cai Clear antiperspirants and deodorants made with siloxane-based polyamides
US20050163736A1 (en) * 2004-01-27 2005-07-28 Heng Cai Dual phase stick

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020007600A1 (fr) * 2018-07-03 2020-01-09 Unilever N.V. Composition antitranspirante comprenant de la zircone amorphe

Also Published As

Publication number Publication date
BR112019012194A2 (pt) 2019-11-05

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