WO2023118917A1 - Émulsion huile dans l'eau - Google Patents

Émulsion huile dans l'eau Download PDF

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Publication number
WO2023118917A1
WO2023118917A1 PCT/IB2021/000915 IB2021000915W WO2023118917A1 WO 2023118917 A1 WO2023118917 A1 WO 2023118917A1 IB 2021000915 W IB2021000915 W IB 2021000915W WO 2023118917 A1 WO2023118917 A1 WO 2023118917A1
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Prior art keywords
mass
oil
water emulsion
component
residue
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PCT/IB2021/000915
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English (en)
Inventor
Mashiro KIKUCHI
Mai OZAWA
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L V M H Recherche
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Priority to PCT/IB2021/000915 priority Critical patent/WO2023118917A1/fr
Publication of WO2023118917A1 publication Critical patent/WO2023118917A1/fr

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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
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/06—Emulsions
    • A61K8/062—Oil-in-water emulsions
    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/45—Derivatives containing from 2 to 10 oxyalkylene groups
    • 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
    • A61K8/73—Polysaccharides
    • 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
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • A61K8/8147—Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
    • 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
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • 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
    • A61K2800/10—General cosmetic use

Definitions

  • the present invention relates to an oil-in-water emulsion.
  • Oil-in-water emulsions must impart a light and fluffy texture when applied onto keratinic materials such as skin, while also leaving virtually no residue on the skin and maintaining high moisture retention for long periods.
  • Oil-in-water emulsions are known from Japanese Unexamined Patent Publication No. 2009-234950 and Japanese Unexamined Patent Publication No. 2007-8901, which disclose cosmetics comprising a specific polysaccharide.
  • Oil-in-water emulsions contain various components, and usually include electrolytes as active components. Active research by the present inventors has shown that electrolyte components disrupt the normal dispersed state of an oil-in-water emulsion and lower its stability. Moreover, if the stability of an oil-in-water emulsion to electrolytes is enhanced simply by increasing concentration of thickeners, the oil-in-water emulsion is hard to collapse by electrolytes present on the surface of skin and the like, and it causes heavy and dense texture when the oil-in- water emulsion is applied onto keratinic materials such as skin.
  • the present disclosure has been devised in light of this situation and its object is to provide an oil-in-water emulsion that is more stable to electrolyte.
  • the oil-in-water emulsion of the invention comprises (A) a polysaccharide with a main chain having a structural unit in which glucose-glucuronic acid-glucose-rhamnose are bonded in that order, (B) a (meth)acrylic-based copolymer, and (Cl) an ester compound having a carboxylic acid residue that includes a C 16 to C22 fatty acid residue, and an alcohol residue that includes a polyglycerin residue or glycerin residue.
  • Component (A) comprises rhamnose as a constituent monosaccharide of a side chain.
  • Component (A) is preferably Diutan gum.
  • the content of component (A) is 0.01 to 5 mass%, preferably 0.05 to 2 mass%, more preferably 0.05 to 0.5 mass% based on the total mass of the oil-in-water emulsion.
  • the (meth)acrylic-based copolymer is preferably crosslinked.
  • the (meth)acrylic-based copolymer is preferably chosen from carbomer, C10-C30 alkyl acrylate copolymers and mixture thereof.
  • the content of component (B) is 0.01 to 5 mass%, preferably 0.05 to 2 mass%, more preferably 0.1 to 1 mass% based on the total mass of the oil-in-water emulsion.
  • Component (Cl) is chosen from esters of polyglycerol and C16-C22 fatty acid, ester of glycerol and C16-C22 fatty acids, esters obtained by reaction of polyacids with esters of C16-C22 fatty acids and glycerol.
  • Component (Cl) comprises at least glyceryl stearate citrate.
  • the oil-in-water emulsion further includes (C2) a C 16 to C22 fatty alcohol.
  • the sum of the contents of components (Cl) and (C2) is 0.05 to 15 mass%, preferably 0.1 to 10 mass%, more preferably 0.5 to 5 mass% based on the total mass of the oil-in-water emulsion.
  • the carboxylic acid residue has a residue of a compound with a Cl to C 8 carboxyl group.
  • Another aspect of the invention is a cosmetic process for caring for and/or dressing keratinic materials, comprising the application onto keratinic materials, in particular onto skin, of the oil-in-water emulsion of the present invention.
  • the oil-in-water emulsion of the present invention preferably provides to the keratinic materials on which it is applied, a non-transfer effect, a long-lasting effect, a high coverage effect and a comfort finish.
  • the oil-in-water emulsion of the invention comprises (A) a polysaccharide with a main chain having a structural unit in which glucose-glucuronic acid-glucose-rhamnose are bonded in that order, (B) a (meth)acrylic-based copolymer, and (Cl) an ester compound having a carboxylic acid residue that includes a C 16 to C22 fatty acid residue, and an alcohol residue that includes a polyglycerin residue or glycerin residue.
  • Component (A) is a polysaccharide, having a unit with glucose-glucuronic acid-glucose- rhamnose one-dimensionally bonded in that order as the structural unit of the main chain.
  • the structural unit is preferably one represented by the following formula (I). wherein
  • R is a hydrogen atom or a side chain including a sugar as a structural unit, and the notation indicates the binding site with the structural unit.
  • the side chain includes a unit derived from 1 to 3 monosaccharides (that is, monosaccharides composing the side chain), and preferably includes a unit derived from 1 or 2 monosaccharides.
  • the side chain preferably contains a unit derived from mannose or rhamnose, and more preferably it includes a unit derived from rhamnose, being preferably a structural unit represented by the following formula (II).
  • a “unit derived from a monosaccharide” is a unit wherein a monosaccharide is glycoside-bonded to the main chain, or a unit wherein a monosaccharide is further glycoside-bonded to a unit of a monosaccharide glycoside-bonded to the main chain.
  • Component (A) is a structural unit represented by formula (I), and it may include two or more structural units with different side chains.
  • Component (A) is a polysaccharide produced by a Sphingomonas bacterium.
  • Component (A) is a Sphingomonas fermentation extract.
  • component (A) includes either or both diutan gum and welan gum, more preferably diutan gum.
  • the oil-in-water emulsion may also include one or more different types of component (A).
  • the content of component (A) is 0.01 mass% or greater, 0.02 mass% or greater, 0.03 mass% or greater, 0.05 mass% or greater or 0.07 mass% or greater, and 5.0 mass% or lower, 2.0 mass% or lower, 1.0 mass% or lower, 0.8 mass% or lower, 0.6 mass% or lower, 0.5 mass% or lower, 0.4 mass% or lower, 0.3 mass% or lower or 0.25 mass% or lower, for example, with respect to total amount of the oil-in-water emulsion.
  • the total content of component (A) with respect to the total amount of the aqueous emulsion is in the range of 0.01 to 1.0 mass% or especially 0.05 to 0.5 mass%.
  • Component (B) is a (meth)acrylic-based copolymer.
  • a (meth)acrylic-based copolymer according to the invention is a polymer obtained by polymerizing one or more monomers selected from the group consisting of (meth)acrylic acid and (meth)acrylic acid esters.
  • the (meth)acrylic acid ester which may be an alkyl (meth)acrylic acid ester, or the same wherein the alkyl group of the (meth)acrylic acid ester has been substituted with a substituent such as a hydroxyl group, and it is preferably an alkyl (meth)acrylic acid ester.
  • Alkyl (meth)acrylic acid esters include alkyl (meth)acrylic acid esters with CIO to C30 alkyl groups and alkyl (meth)acrylic acid esters with Cl to C9 alkyl groups, and are preferably alkyl (meth)acrylic acid esters with CIO to C30 alkyl groups.
  • Component (B) is a copolymer of at least one monomer selected from the group consisting of (meth)acrylic acid and alkyl (meth)acrylic acid esters with Cl to C9 alkyl groups, and at least one monomer selected from the group consisting of alkyl (meth)acrylic acid esters with CIO to C30 alkyl groups.
  • Component (B) comprises a structural unit derived from (meth)acrylic acid.
  • a structural unit derived from (meth)acrylic acid is a structural unit obtained by radical addition polymerization of (meth)acrylic acid.
  • a structural unit obtained by radical addition polymerization may be any one with the same chemical structure as a structural unit obtained by radical addition polymerization, and may optionally be a structural unit obtained by a method other than radical addition polymerization.
  • Component (B) is crosslinked.
  • the crosslinking agent may be a compound having a plurality of ethylenic unsaturated groups in the molecule, such as a compound with a plurality of allyl ether groups in the molecule.
  • the crosslinking agent may be pentaerythrityl allyl ether, sucrose allyl ether, propylene allyl ether or sucrose allyl ether.
  • Component (B) may be crosslinked with one or more crosslinking agents.
  • component (B) is a carboxy group, at least a portion of the carboxy groups may be neutralized.
  • carboxy group includes both the group COOH and the neutralized COOH group.
  • the counter cation of the carboxylic acid anion is not particularly restricted, and examples include alkali metal ions such as sodium ion and potassium ion, and ammonium ion or organic ammonium ions.
  • Component (B) is chosen from carbomer, C10-C30 alkyl acrylate copolymers and mixture thereof.
  • Component (B) may be a commercial product, examples of commercial products including CarbopolTM Ultrez 30 Polymer, CarbopolTM Ultrez 10, CarbopolTM ETD 2020 and CarbopolTM Ultrez 20 Polymer, by Lubrizol Corp.
  • the oil-in-water emulsion may also include one or more different types of component (B).
  • component (B) is 0.01 mass% or greater, 0.05 mass% or greater, 0.1 mass% or greater, 0.15 mass% or greater, 0.2 mass% or greater or 0.25 mass% or greater, and 5.0 mass% or lower, 2.0 mass% or lower, 1.0 mass% or lower, 0.8 mass% or lower, 0.7 mass% or lower, 0.6 mass% or lower or 0.5 mass% or lower, for example, with respect to the total amount of the oil-in-water emulsion.
  • the total content of component (B) with respect to the total amount of the aqueous emulsion is the range of 0.01 to 5 mass%, 0.05 to 2 mass%, 0.1 to 1 mass% or especially 0.1 to 0.5 mass%.
  • Component (C 1) is an ester compound, and may be considered to be a compound having an ester bond obtained by formally reacting a carboxylic acid with an alcohol.
  • the portions other than the ester bond derived from a carboxylic acid and alcohol that can formally produce component (Cl) are a carboxylic acid residue and alcohol residue, respectively.
  • the number of carbon atoms in the fatty acid residue of component (Cl) is preferably 16 to 20 and more preferably 18.
  • fatty acid residues include residues of fatty acids such as palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, a-linolenic acid, y-linolenic acid, isostearic acid, arachidic acid, arachidonic acid and behenic acid.
  • the fatty acid may be saturated or unsaturated, but it is preferably saturated.
  • Component (Cl) includes one or more fatty acid residues.
  • Component (Cl) can also function as an emulsifying agent in the oil-in-water emulsion.
  • Component (Cl) is chosen from esters of polyglycerol and C16-C22 fatty acid, ester of glycerol and C16-C22 fatty acids, esters obtained by reaction of polyacids with esters of C16-C22 fatty acids and glycerol.
  • the polyacid is a polycarboxylic acid, in particular is a polycarboxylic acid having a hydroxy group, for example, citric acid.
  • the polymerization degree of the glycerin in component (Cl) is 2 to 10, and is preferably 2 to 4 and more preferably 2.
  • component (Cl) is selected from the group consisting of polyglyceryl-2 stearate, polyglyceryl-2 isostearate, polyglyceryl-2 oleate, and mixtures of the same.
  • Component (Cl) includes a carboxylic acid residue other than a fatty acid residue.
  • carboxylic acid residues include residues of Cl to C8 carboxylic acids (hereunder referred to as short-chain carboxylic acids).
  • the number of carbon atoms of the short-chain carboxylic acid may be 2 to 7, or 3 to 6.
  • Short-chain carboxylic acids include aliphatic monocarboxylic acids such as acetic acid, propionic acid, valeric acid, caproic acid and caprylic acid, aliphatic dicarboxylic acids such as succinic acid; and hydroxy acids such as lactic acid and citric acid. Hydroxy acid residues may be considered to be carboxylic acid residues where the carboxy group of the hydroxy acid forms an ester bond.
  • Component (Cl) comprises at least glyceryl stearate citrate.
  • the oil-in-water emulsion comprises (C2) a C 16 to C22 fatty alcohol.
  • the number of carbon atoms in the fatty alcohol is preferably 16 to 20 and more preferably 18.
  • Component (C2) is myristyl alcohol, cetanol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, arachidyl alcohol or behenyl alcohol, for example.
  • a fatty alcohol may be saturated or unsaturated, but is preferably saturated.
  • component (C2) is stearyl alcohol, oleyl alcohol, cetanol or behenyl alcohol, or a mixture thereof.
  • the oil-in-water emulsion may comprise both component (Cl) and component (C2). In this case, component (Cl) does not need to include a short-chain carboxylic acid residue.
  • the sum of the contents of component (Cl) and component (C2) is 0.05 mass% or greater, 0.10 mass% or greater, 0.50 mass% or greater, 1.0 mass% or greater, or 1.2 mass% or greater, and 15 mass% or lower, 10 mass% or lower, 8.0 mass% or lower, or lower or 5.0 mass% or lower, with respect to the total amount of the oil-in-water emulsion.
  • the sum of the contents of component (Cl) and (C2) is 0.05 to 15 mass%, preferably 0.1 to 10 mass%, more preferably 0.5 to 5 mass% based on the total amount of the oil- in-water emulsion.
  • the content of component (Cl) that includes a short-chain carboxylic acid residue is 0.1 mass% or greater, 0.2 mass% or greater, 0.3 mass% or greater or 0.5 mass% or greater, and 15 mass% or lower, 10 mass% or lower, 8.0 mass% or lower or 5.0 mass% or lower, with respect to the total amount of the oil-in-water emulsion.
  • the content of component (C2) is 0.03 mass% or greater, 0.05 mass% or greater, 0.08 mass% or greater or 0.10 mass% or greater, and 15 mass% or lower, 10 mass% or lower, 8.0 mass% or lower or 5.0 mass% or lower, with respect to the total amount of the oil-in-water emulsion.
  • the content of component (C2) is 5 mass% or greater, 10 mass% or greater, 15 mass% or greater or 20 mass% or greater, and 45 mass% or lower, 40 mass% or lower, 35 mass% or lower or 30 mass% or lower, with respect to the total amount of component (Cl) without a short-chain carboxylic acid residue, and component (C2).
  • the content of ester compounds having a C16 to C22 fatty acid residue and a polyglycerin residue is 0.05 mass% or greater, 0.10 mass% or greater, 0.15 mass% or greater or 0.20 mass% or greater, and 15 mass% or lower, 10 mass% or lower, 8.0 mass% or lower or 5.0 mass% or lower, with respect to the total amount of the oil-in-water emulsion.
  • the content of component (Cl) is 0.05 mass% or greater, 0.1 mass% or greater, 0.2 mass% or greater, 0.3 mass% or greater or 0.5 mass% or greater, and 15 mass% or lower, 10 mass% or lower, 8.0 mass%, 5.0 mass% or lower, 4.0 mass% or lower, 3.0 mass% or lower, 2.5 mass% or 2.0 mass% or lower, with respect to the total amount of the oil- in-water emulsion.
  • the total content of component (Cl) with respect to the total amount of the aqueous emulsion is in the range of 0.05 to 15 mass%, 0.1 to 10 mass% or 0.5 to 5 mass%.
  • the oil-in-water emulsion further comprises a thickener.
  • the thickener is one that is not included among component (A) or component (B).
  • thickeners include polysaccharide thickeners such as xanthan gum and agarose.
  • the content of the additional thickener is 0.01 mass% or greater, 0.1 mass% or greater, 0.15 mass% or greater, 0.2 mass% or greater, 0.3 mass% or greater, 0.4 mass% or greater or 0.5 mass% or greater, and 1.0 mass% or lower, 0.8 mass% or lower, 0.5 mass% or lower, 0.3 mass% or lower or 0.2 mass% or lower, for example, with respect to the total amount of the oil-in-water emulsion.
  • the additional thickener content is most preferably 0.01 to 1 mass% with respect to the total amount of the oil-in-water emulsion.
  • the oil-in-water emulsion includes an oil agent other than components (Cl) and (C2).
  • the oil agent may be a liquid oil or a paste oil, for example.
  • a liquid oil may be either a non-polar liquid oil or a polar liquid oil.
  • liquid oils examples include alkyl palm (caprylates/caprates), squalane, sunflower oil, dimethicone, meadowfoam oil, almond oil, polyglyceryl-2 triisostearate, glyceryl tri(capry late/ caprate), isotridecyl isononanoate, isononyl isononanoate, ethyl hexyl palmitate, pentaerythrityl tetraethyl hexanoate, pentaerythrityl tetraisostearate, cetyl ethylhexanoate, hydrogenated polydecene and hydrogenated polyisobutene, as well as their mixtures.
  • the content of the oil agent with respect to the total amount of the oil-in-water emulsion is 0.3 mass% or greater, 0.5 mass% or greater, 0.5 mass% or greater, 1 mass% or greater, 5 mass% or greater, 7 mass% or greater, 8 mass% or greater, 10 mass% or greater, 12 mass% or greater, 14 mass% or greater or 16 mass% or greater, and 40 mass% or lower, 30 mass% or lower, 20 mass% or lower, 18 mass% or lower, 17 mass% or lower, 15 mass% or lower, 13 mass% or lower, or 10 mass% or lower, for example.
  • the oil agent content is in the range of 0.5 mass% to 40 mass% and especially 1 mass% to 30 mass%, with respect to the total amount of the oil-in-water emulsion.
  • the liquid oil content with respect to the total amount of the oil-in-water emulsion is 0.1 mass% or greater, 0.3 mass% or greater, 0.5 mass% or greater, 1 mass% or greater, 3 mass% or greater, 5 mass% or greater, 7 mass% or greater, 8 mass% or greater, 10 mass% or greater, 12 mass% or greater or 14 mass% or greater, and 40 mass% or lower, 30 mass% or lower, 20 mass% or lower, 18 mass% or lower, 17 mass% or lower, 15 mass% or lower, 13 mass% or lower, 10 mass% or lower or 8 mass% or lower, for example.
  • the liquid oil content is in the range of 0.3 mass% to 40 mass% and especially 0.5 mass% to 30 mass%, with respect to the total amount of the oil-in-water emulsion.
  • the oil-in-water emulsion may also contain additives commonly used in cosmetics, such as humectants, pH adjustors, perfumes, preservatives, active components, antioxidants, UV blockers, skin whiteners, pigments, coloring agents, and skin conditioning agents.
  • the oil-in-water emulsion comprises an active component.
  • humectants include C3 to C5 polyhydric alcohols.
  • polyhydric alcohols include those with 2 or 3 alcoholic hydroxyl groups.
  • polyhydric alcohols include glycerin, 1,3 -butylene glycol, pentylene glycol, propanediol, and mixtures thereof.
  • the oil-in-water emulsion comprises polyhydric alcohol(s) selected in the group consisting of glycerin, 1,3-butylene glycol, pentylene glycol, propanediol, and mixtures thereof.
  • the total content of C3 to C5 polyhydric alcohol(s) with respect to the total amount of the oil-in-water emulsion is 2 mass% or greater, 5 mass% or greater, 8 mass% or greater, 10 mass% or greater, 12 mass% or greater, 15 mass% or greater, 18 mass% or greater or 20 mass% or greater, and 30 mass% or lower, 28 mass% or lower, 25 mass% or lower, 23 mass% or lower, 20 mass% or lower, 18 mass% or lower or 15 mass% or lower, for example.
  • the total content of C3 to C5 polyhydric alcohol(s) is in the range of 2 mass% to 30 mass% and especially 5 mass% to 30 mass%, with respect to the total amount of the oil-in-water emulsion.
  • the pH of the oil-in-water emulsion is 3 to 9 or 4 to 8, for example.
  • the oil-in-water emulsion has a viscosity of 5,000 to 100,000 mPa-s or 8,000 to 50,000 mPa-s, for example, as measured at 25°C.
  • the viscosity is measured based on the shear viscosity, using a rotational viscometer (for example, Rheolab QC by Anton Paar, spindle: ST-24-2D/2 V/2 V-30; rotational speed: 50 rpm).
  • the oil-in-water emulsion comprises water.
  • the total content of water with respect to the total amount of the oil-in-water emulsion is 40 mass% or greater, 43 mass% or greater, 45 mass% or greater, 47 mass% or greater, 49 mass% or greater, 51 mass% or greater, 53 mass% or greater, 55 mass% or greater, 58 mass% or greater, 60 mass% or greater or 61 mass% or greater, and 70 mass% or lower, 65 mass% or lower, 63 mass% or lower, 61 mass% or lower, 59 mass% or lower or 57 mass% or lower, for example.
  • the total water content is in the range of 40 mass% to 90 mass% and 49 mass% to 80 mass%, with respect to the total amount of the oil-in-water emulsion.
  • the oil-in-water emulsion is produced, for example, by stirring and mixing component (A), component (B), component (Cl), and water with the additional thickener, oil agent or emulsifying agent, while heating at 80 to 85°C, and then cooling the mixture to room temperature and mixing in the other components.
  • the oil-in-water emulsion is in the form of a cream or fluid, for example.
  • the oil-in-water emulsion is a cosmetic, and is preferably a skin care cosmetic.
  • the oil-in-water emulsion of the invention also comprises an active substance.
  • the active substance that is an electrolyte includes an acid having an acidity constant pKa of 5 or lower or the salt there of, in particular an acid having an acidity constant pKa of 4.5 or lower or the salt there of. If the active substance having a multiplicity of acidic groups, an acidity constant pKa may be pKal.
  • active electrolyte components include ascorbic acid, ascorbic acid derivatives and salts thereof.
  • Ascorbic acid derivatives include ascorbic acid esters such as ascorbic acid 2-glucoside.
  • ascorbic acid is L-ascorbic acid.
  • ascorbic acid derivatives are L-ascorbic acid derivatives.
  • Another aspect of the invention is a cosmetic process for caring for and/or making-up keratinic materials (for example, skin, lips, nail and the like), comprising the application onto keratinic materials, in particular onto skin, of the oil-in-water emulsion above described.
  • the oil-in-water emulsion provides to the keratinic materials on which it is applied, non-transfer effect, long lasting effect, high coverage effect and comfort finish.
  • Oil-in-water emulsions were prepared having the mixing ratios listed in Tables 1 and 2.
  • the numerical values in Tables 1 and 2 are mass% values. The totals are all 100 mass%.
  • the active component and a pH adjustor were dissolved at room temperature.
  • the active component included ascorbic acid 2-glucoside.
  • a purified water, a humectant and a preservative were then loaded into the tank and mixed in at 80 to 85°C.
  • a thickener was added to and mixed in the tank to have the mixture swell.
  • the oil and component (Cl) were added to the tank and mixed to have the mixture emulsified. The mixture was then cooled to 30°C, mixing in the other materials at the point where the temperature fell below 40°C, to obtain an oil-in-water emulsion.
  • Sphingomonas Ferment Extract KELCO-CARE DIUTAN GUM, Lubrizol Corp.
  • Carbomer* 1 CARBOPOL ULTREZ 30 POLYMER, Lubrizol Corp.
  • Carbomer* 2 CARBOPOL ULTREZ 10, Lubrizol Corp.
  • alkyl acrylate crosspolymer CARBOPOL ETD 2020, Lubrizol Corp. Hydroxypropyl Methylcellulose Stearoxy Ether: SANGELOSE 90L, Daidokasei Co., Ltd. Agar.: INA KANTEN CS-310TR, Ina Eood Industry Co., Ltd.
  • Algin GELCARIN EE46, DuPont.
  • Tapioca Starch TAPIOCA NATURAL 9096, Agrana.
  • Polyglyceryl-2 stearate, glyceryl stearate, and stearyl alcohol POLYAQUOL 2W, Innovacos Corp.
  • Glyceryl citrate stearate DERMOPEEL GSC, Evonik, Japan
  • each obtained oil-in-water emulsion was evaluated by the following method. A 30 g portion of the oil-in-water emulsion was placed in a transparent container (50 mL). The cover of the glass bottle was then sealed. The glass bottle was stored at a constant temperature of 50°C or 40°C. After standing for 1 month at 50°C or 6 months at 40°C, the emulsion was observed. The results are shown in Tables 3 and 4. The term “stable” in the tables indicates that no phase separation was observed, "water exudation” indicates that the oil phase and aqueous phase separated and exudation of water was observed, and "not smooth” indicates that non-smooth irregularities due to aggregate formation in the composition was observed.
  • the viscosities of the obtained oil-in-water emulsions were measured. Each viscosity was measured at 25°C based on the shear viscosity, using a rotational viscometer (for example, Rheolab QC by Anton Paar, spindle: ST-24-2D/2 V/2 V-30; rotational speed: 50 rpm). The results are shown in Tables 3 and 4. The emulsions evaluated as ‘stable’ and smooth for all conditions (1 month at 50°C and also 6 months at 40°C) are acceptable in the context of the invention.
  • each of the oil-in-water emulsions of the Examples were stable at 1 month at 50°C and also 6 months at 40°C, without visible phase separation or component aggregation after stability testing.
  • Each of the oil-in-water emulsions of the Comparative Examples were not stable, exhibiting phase separation or component aggregation after stability testing.

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Abstract

L'invention concerne une émulsion huile dans l'eau comprenant ; (A) un polysaccharide ayant une chaîne principale contenant une unité structurale dans laquelle le glucose, l'acide glucuronique, le glucose et le rhamnose sont liés dans cet ordre, (B) un polymère (méth)acrylique et (Cl) un composé ester comprenant un résidu d'acide carboxylique comprenant un résidu d'un acide gras en C16 à C22 et un résidu d'alcool ayant un résidu de polyglycérine ou un résidu de glycérine.
PCT/IB2021/000915 2021-12-24 2021-12-24 Émulsion huile dans l'eau WO2023118917A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10344888A1 (de) * 2003-09-26 2005-04-14 Beiersdorf Ag Kosmetische oder pharmazeutische Emulsionen auf der Basis von vernetzten Öltröpfchen
JP2007008901A (ja) 2005-07-04 2007-01-18 Hakuto Co Ltd 化粧料およびその製造方法
JP2007119439A (ja) * 2005-09-30 2007-05-17 Hakuto Co Ltd 化粧料組成物およびその製造方法
JP2009234950A (ja) 2008-03-26 2009-10-15 Univ Kanagawa 化粧料およびその製造方法
JP2020002055A (ja) * 2018-06-28 2020-01-09 日本精化株式会社 新規リンゴ酸エステルを含有する化粧料
US20200383896A1 (en) * 2017-11-15 2020-12-10 Evonik Operations Gmbh Functionalized polymers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10344888A1 (de) * 2003-09-26 2005-04-14 Beiersdorf Ag Kosmetische oder pharmazeutische Emulsionen auf der Basis von vernetzten Öltröpfchen
JP2007008901A (ja) 2005-07-04 2007-01-18 Hakuto Co Ltd 化粧料およびその製造方法
JP2007119439A (ja) * 2005-09-30 2007-05-17 Hakuto Co Ltd 化粧料組成物およびその製造方法
JP2009234950A (ja) 2008-03-26 2009-10-15 Univ Kanagawa 化粧料およびその製造方法
US20200383896A1 (en) * 2017-11-15 2020-12-10 Evonik Operations Gmbh Functionalized polymers
JP2020002055A (ja) * 2018-06-28 2020-01-09 日本精化株式会社 新規リンゴ酸エステルを含有する化粧料

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE GNPD [online] MINTEL; 23 October 2019 (2019-10-23), ANONYMOUS: "Emulsion", XP055955576, retrieved from https://www.gnpd.com/sinatra/recordpage/6929111/ Database accession no. 6929111 *
MIKIMOTO COSMETICS: "Recover Essence", GNPD, MINTEL, 1 February 2015 (2015-02-01), XP002778447 *

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