EP4288019A1 - Produit cosmétique contenant du dioxyde de titane en phase aqueuse - Google Patents

Produit cosmétique contenant du dioxyde de titane en phase aqueuse

Info

Publication number
EP4288019A1
EP4288019A1 EP22701908.0A EP22701908A EP4288019A1 EP 4288019 A1 EP4288019 A1 EP 4288019A1 EP 22701908 A EP22701908 A EP 22701908A EP 4288019 A1 EP4288019 A1 EP 4288019A1
Authority
EP
European Patent Office
Prior art keywords
preparation
water phase
water
phase
cosmetic
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP22701908.0A
Other languages
German (de)
English (en)
Inventor
Jan Nilsson
Berkay Daniel SIVACILAR
Alexis Goulet-Hanssens
Magdalena VON WEDEL-PARLOW
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beiersdorf AG
Original Assignee
Beiersdorf AG
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 Beiersdorf AG filed Critical Beiersdorf AG
Publication of EP4288019A1 publication Critical patent/EP4288019A1/fr
Pending legal-status Critical Current

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
    • A61K8/29—Titanium; 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
    • A61K8/04—Dispersions; Emulsions
    • A61K8/044—Suspensions
    • 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
    • A61K8/064—Water-in-oil emulsions, e.g. Water-in-silicone 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
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/27—Zinc; 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
    • A61K8/73—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
    • A61K8/73—Polysaccharides
    • A61K8/737—Galactomannans, e.g. guar; Derivatives 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
    • A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
    • A61K8/99—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from microorganisms other than algae or fungi, e.g. protozoa or bacteria
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • 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
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/413—Nanosized, i.e. having sizes below 100 nm
    • 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
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/48—Thickener, Thickening system
    • 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
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/61—Surface treated
    • A61K2800/62—Coated
    • A61K2800/621—Coated by inorganic compounds
    • 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
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/61—Surface treated
    • A61K2800/62—Coated
    • A61K2800/623—Coating mediated by organosilicone compounds
    • 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
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/65—Characterized by the composition of the particulate/core
    • A61K2800/651—The particulate/core comprising inorganic material
    • 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
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/805—Corresponding aspects not provided for by any of codes A61K2800/81 - A61K2800/95

Definitions

  • the present invention relates to a cosmetic preparation containing or consisting of an aqueous phase containing titanium dioxide particles and one or more gums (INCI: gum) and its production.
  • UVA and UVB filters are summarized in the form of positive lists such as Annex 7 of the Cosmetics Ordinance.
  • the object is surprisingly achieved by a cosmetic preparation containing an aqueous phase or consisting of an aqueous phase containing titanium dioxide particles and one or more gums (INCI: gum).
  • This aqueous preparation forms a flexible gel in which the titanium dioxide particles are stable and finely distributed. Surprisingly, there are no titanium dioxide deposits on the boiler walls of the reactor vessel during the production of the gel, which would entail complex cleaning after production, as is usually the case in the prior art.
  • the titanium dioxide particles have a primary particle size of between 5 and 200 nm, measured by transmission electron microscopy.
  • these titanium dioxide particles are coated with silica or an organopolysiloxane.
  • the preferred embodiments according to the invention are characterized in that the titanium dioxide particles are coated with silica (silicon dioxide and/or silicic acid).
  • the titanium dioxide coated with silica has a layer of dimethicone, simethicone or methicone on the outer side of the silica layer (i.e. on the side facing away from the titanium dioxide).
  • dimethicone is particularly preferred according to the invention.
  • the titanium dioxide "Parsol TX” from the company DSM comes into question.
  • An example of organopolysiloxane-coated titanium dioxide is, for example, “Aeroxide TiÜ2 T 805” from Evonik.
  • the gums are selected from the group of compounds gellan gum (INCI: gellan gum), sclerotium gum (INCI: sclerotium gum) and xanthan gum (INCI: xanthan gum).
  • the use of gellan gum (INCI: gellan gum) and/or sclerotium gum (INCI: sclerotium gum) is preferred.
  • Both the highly acylated and the lower acylated gelan gum can be used modifications are used.
  • the highly acylated gellan gums result in more viscous gels than the low-acylated gellan gums.
  • the preparation contains the titanium dioxide particles in a concentration of 0.1 to 20% by weight, based on the total weight of the water phase of the preparation. It is preferred according to the invention if the preparation contains the titanium dioxide particles in a concentration of 5 to 20% by weight, based on the total weight of the water phase of the preparation.
  • the total weight of the water phase also called the combined water phases in the context of the present disclosure, is to be understood as the sum of the water phase 1 and the water phase 2 (see below).
  • Embodiments of the present invention that are advantageous according to the invention are characterized in that the preparation contains the gum or gums in a total concentration of 0.1 to 1% by weight, based on the total weight of the water phase of the preparation.
  • the preparation contains glycerol in a concentration of 0.1 to 5% by weight, based on the total weight of the water phase of the preparation.
  • the addition of glycerol results in a softer gel being formed in the water phase.
  • the preparation contains water in a concentration of 80 to 95% by weight, based on the total weight of the water phase of the preparation.
  • Embodiments of the present invention that are advantageous according to the invention are also obtained in that the preparation contains phenoxyethanol in a concentration of 0.1 to 0.4% by weight, based on the total weight of the water phase of the preparation.
  • the preparation according to the invention can contain a citrate buffer in the water phase.
  • citrate buffer When using low-acylated gellan gum, the addition of citrate buffer leads to more viscous gels than without citrate buffer. When using highly acylated gellan gum, xanthan gum and sclerotium gum, the addition of citrate buffer leads to less viscous gels than without citrate buffer. It is advantageous according to the invention if magnesium sulfate, calcium chloride and/or sodium chloride is added to the aqueous phase in a total concentration of 0.29 to 0.7% by weight, based on the total weight of the aqueous phase of the preparation.
  • the cosmetic preparation according to the invention can advantageously be used according to the invention in two different product forms.
  • the preparation is in the form of an aqueous gel.
  • the preparation is in the form of an emulsion.
  • the preparation according to the invention is in the form of an emulsion, it is particularly advantageous according to the invention if the preparation is in the form of a water-in-oil emulsion (W/O emulsion).
  • W/O emulsion water-in-oil emulsion
  • the preparation according to the invention is in the form of an emulsion (in particular a W/O emulsion), it is advantageous according to the invention if the preparation contains zinc oxide. It is preferred according to the invention if the preparation contains the zinc oxide in the oil phase.
  • the preparation according to the invention can advantageously be used as a cosmetic sunscreen.
  • highly effective sunscreens based purely on pigments can be produced in this way.
  • UV filters for example one or more UV filters selected from the group consisting of the compounds 2-phenylbenzimidazole-5-sulfonic acid and/or salts thereof; Phenylene-1,4-bis(2-benzimidazyl)-3,3'-5,5'-tetrasulfonic acid salts; 1,4-di(2-oxo-10-sulfo-3-bornylidenemethyl)benzene and its salts; 4-(2-oxo-3-bornylidenemethyl)benzenesulfonic acid salts; 2-methyl-5-(2-oxo-3-bornylidenemethyl)sulfonic acid salts; 2,2'-methylene-bis-(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)-phenol); 2-(2H-benzotriazol-2-yl)-4-methyl-6-[2-methyl-3-[1,3,
  • the preparation is free from mineral oil, paraffin wax, microcrystalline wax, shellac wax and polyethylene wax, free from polyacrylates, cross-linked acrylate/C10-C30 alkyl acrylate polymers and vinylpyrrolidone/hexadecene copolymers, and free from 3-(4 -methylbenzylidene)-camphor, 2-hydroxy-4-methoxybenzophenone (INCI: oxybenzone), 2-ethylhexyl 4-methoxycinnamate (INCI octylmethoxycinnamate), ethylhexyl 2-cyano-3,3-diphenyl acrylate (INCI: octocrylene, parabens (in particular methyl, propyl and butylparaben), methylisothiazolinone, chloromethylisothiazolinone and DMDM hydantoin, polyethylene glycol ethers or polyethylene glycol esters
  • preparation according to the invention can contain the usual lipophilic ingredients known for such preparations, for example oils, fats, waxes and the like.
  • the preparation contains one or more compounds selected from the group consisting of glycyrrhetinic acid, urea, arctiin, alpha-lipoic acid, folic acid, phytoene, D-biotin, coenzyme Q10, hyaluronic acid, alpha-glucosylrutin, carnitine, carnosine , caffeine, natural and/or synthetic isoflavonoids, glyceryl glucose, creatine, creatinine, taurine, ß-alanine and/or licochalcone A, panthenol, tocopherol, tocopherol acetate, vitamin C, vitamin C derivative, glycyrrhiza inflata root extract, polydocanol, magnolol, honokiol , tocopheryl acetate, dihydroxyacetone; 8-hexadecene-1,16-dicarboxylic acid, glycerylglycose
  • embodiments of the present invention that are advantageous according to the invention are characterized in that the preparation contains one or more alcohols selected from the group consisting of the compounds ethanol, 1,2-propylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, 1,2- Pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, 2-methyl-1,3-propanediol contains phenoxyethanol and/or ethylhexylglycerol, the use of ethanol, 1,2-pentanediol, 1, 2-hexanediol, 1,2-octanediol, 1,2-decanediol, 2-methyl-1,3-propanediol, phenoxyethanol and/or ethylhexylglycerol is preferred according to the invention.
  • An alternative preferred embodiment with alcohols is the combination of 1,2-propylene glycol, 1,2-butylene glycol and/or 1,3-butylene glycol with 1,2-octanediol.
  • the water phase of the emulsion according to the invention can contain customary cosmetic auxiliaries.
  • a method for producing such a cosmetic preparation which is characterized in that in a first water phase (water phase 1) the rubber is dissolved with stirring, in a second water phase (water phase 2) the titanium dioxide is suspended with stirring and then the two Water phases are combined with stirring.
  • the water phases 1 and 2 are prepared and the two water phases are combined at a temperature of 70° C. to 80° C. and the combined water phases are then cooled to room temperature with stirring.
  • magnesium sulphate or calcium chloride also leads to faster gelation, in contrast to sodium chloride.
  • Embodiments of the method according to the invention that are advantageous according to the invention are characterized in that the water phase 2 is homogenized using an UltraTurrax and the water phase 1 and combined water phases are homogenized using an agitator.
  • Advantageous embodiments of the process according to the invention are characterized in that the phenoxyethanol is added to the combined water phases.
  • the process according to the invention is advantageously characterized in that sodium hydroxide (NaOH) is added to water phase 1 after the addition of gum and glycerol and citric acid is added to the combined water phases.
  • NaOH sodium hydroxide
  • the citric acid is preferably added at the end of the process, ie when the preparation is cooling.
  • advantageous embodiments of the method according to the invention are then characterized in that sodium hydroxide and the citric acid are each used in an amount of 0.1 to 1.0% by weight, based on the total weight of the water phase.
  • the process of this invention can also be used to prepare the emulsions of this invention. In such a case, it is advantageous according to the invention if the combined water phases are combined with an oil phase while stirring.
  • the process according to the invention is advantageously characterized according to the invention in that the combined water phases are combined with an oil phase with stirring, the combined water phases and the oil phase being heated to a temperature of 70-90° C. before the combination.
  • a preparation is produced by the process according to the invention.
  • Water phase 1 The gum according to the invention is slowly added to half the amount of the water phase, which also already contains the glycerol, with stirring (magnetic stirrer, 300-500 rpm) at 75° C. and stirred for about 20 minutes. until the gum has completely dissolved.
  • Water phase 2 The other half of the water phase is heated separately to 70 to 75° C. with stirring and the titanium dioxide is heated using a Turrax (model T25 or T50) at 10,000 rpm. incorporated into this second half of the water phase. After 5-7 minutes, this water phase is added to water phase 1 at 75° C. with stirring.
  • Turrax model T25 or T50
  • Combined water phases 1 and 2 The combined water phases 1 and 2 are stirred at 75° C. for a further 30 minutes using a magnetic stirrer (300-500 rpm) and about 0.4% by weight of phenoxyethanol is added. After stirring for a further 5 minutes, 0.9 to 1.0% by weight of citric acid is slowly added and this total water phase is cooled with stirring.
  • the gel phase begins to form.
  • the formation of the gel phase is complete when room temperature is reached.
  • Water phase 1 The gum according to the invention is slowly added to half the amount of the water phase, which also already contains the glycerol, with stirring (magnetic stirrer, 300-500 rpm) at 75° C. and stirred for about 20 minutes. until the gum has completely dissolved.
  • Water phase 2 The other half of the water phase is heated separately to 70 to 75° C. with stirring and the titanium dioxide is heated using a Turrax (model T25 or T50) at 10000 l/min. incorporated into this second half of the water phase. After 5-7 minutes, this water phase is added to water phase 1 at 75° C. with stirring.
  • Combined water phases 1 and 2 The combined water phases 1 and 2 are stirred at 75° C. for a further 30 minutes using a magnetic stirrer (300-500 l/min.) and about 0.4% by weight of phenoxyethanol is added. This total water phase is then cooled with stirring. At around 50 °C the gel phase begins to form. The formation of the gel phase is complete when room temperature is reached.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Dermatology (AREA)
  • Dispersion Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Cosmetics (AREA)

Abstract

L'invention concerne une préparation cosmétique contenant une phase aqueuse ou constituée d'une phase aqueuse qui contient des particules de dioxyde de titane et une ou plusieurs gommes (INCI : Gum) et sa production.
EP22701908.0A 2021-02-02 2022-01-14 Produit cosmétique contenant du dioxyde de titane en phase aqueuse Pending EP4288019A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021200944.1A DE102021200944A1 (de) 2021-02-02 2021-02-02 Kosmetikum mit Titandioxid in der wässrigen Phase
PCT/EP2022/050706 WO2022167197A1 (fr) 2021-02-02 2022-01-14 Produit cosmétique contenant du dioxyde de titane en phase aqueuse

Publications (1)

Publication Number Publication Date
EP4288019A1 true EP4288019A1 (fr) 2023-12-13

Family

ID=80119050

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22701908.0A Pending EP4288019A1 (fr) 2021-02-02 2022-01-14 Produit cosmétique contenant du dioxyde de titane en phase aqueuse

Country Status (4)

Country Link
US (1) US20240423884A1 (fr)
EP (1) EP4288019A1 (fr)
DE (1) DE102021200944A1 (fr)
WO (1) WO2022167197A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1407199A (en) * 1998-11-13 2000-06-05 Procter & Gamble Company, The An oil-in-water emulsion containing an ascorbic acid compound
DE10333029A1 (de) * 2003-07-21 2005-02-17 Merck Patent Gmbh Nanopartikuläres UV-Schutzmittel
FR2873028B1 (fr) * 2004-07-13 2008-04-04 Oreal Composition photoprotectrice aqueuse contenant des nanopigments d'oxyde metallique hydrophiles et un homopolymere de vinylpyrrolidone ; utilisations
DE102015223261A1 (de) * 2015-11-25 2017-06-01 Beiersdorf Ag Sonnenschutzmittel enthaltend Titandioxid
ES3043560T3 (en) * 2016-10-11 2025-11-25 Dsm Ip Assets Bv Cosmetic compositions

Also Published As

Publication number Publication date
US20240423884A1 (en) 2024-12-26
DE102021200944A1 (de) 2022-08-04
WO2022167197A1 (fr) 2022-08-11

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