WO2016008119A1 - Composition d'écran solaire sans huile - Google Patents

Composition d'écran solaire sans huile Download PDF

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Publication number
WO2016008119A1
WO2016008119A1 PCT/CN2014/082329 CN2014082329W WO2016008119A1 WO 2016008119 A1 WO2016008119 A1 WO 2016008119A1 CN 2014082329 W CN2014082329 W CN 2014082329W WO 2016008119 A1 WO2016008119 A1 WO 2016008119A1
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WO
WIPO (PCT)
Prior art keywords
composition
composition according
styrene
acrylate
glycol
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Application number
PCT/CN2014/082329
Other languages
English (en)
Inventor
Runshuang LU
Saijuan NI
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 CN201480080642.5A priority Critical patent/CN106659665A/zh
Priority to PCT/CN2014/082329 priority patent/WO2016008119A1/fr
Publication of WO2016008119A1 publication Critical patent/WO2016008119A1/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
    • 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
    • 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
    • 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
    • A61K8/86—Polyethers
    • 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
    • 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

Definitions

  • the present invention relates to the field of cosmetics, and especially to the field of sunscreen compositions.
  • UV-B rays radiation with wavelengths of between 280 nm and 400 nm permits tanning of the human epidermis and that radiation with wavelengths of between 280 and 320 nm, known as UV-B rays, harms the development of a natural tan. Exposure is also liable to bring about a detrimental change in the biomechanical properties of the epidermis, which is reflected by the appearance of wrinkles, leading to premature ageing of the skin.
  • UV-A rays with wavelengths of between 320 and 400 nm penetrate more deeply into the skin than UV-B rays. UV-A rays cause immediate and persistent browning of the skin. Daily exposure to UVA rays, even of short duration, under normal conditions can result in damage to the collagen fibers and the elastin, which is reflected by a modification in the microrelief of the skin, the appearance of wrinkles and uneven pigmentation (liver spots, lack of uniformity of the complexion).
  • Normal sprayable UV products contain mainly hydrophobic UV filter (or in other words hydrophobic UV-screening agent) in emulsion system.
  • compositions contain both oil-soluble and water-soluble UV filters and provide white spray mist, while some of them only contain oil-soluble UV filters. But such compositions contain only water-soluble UV filters (or in other words hydrophilic UV-screening agents). Water soluble UV filters provide only limited photoprotection ability. There is need for developing compositions, in particular sunscreen composition, having only water soluble UV filters while presenting a good UV- screening ability.
  • compositions, in particular sunscreen composition having only water soluble UV filters while presenting good feeling on the skin.
  • compositions, in particular sunscreen composition having only water soluble UV filters while being uncolored when applied onto the skin.
  • Anti-sun products provided in spray form are increasingly sought by consumers because of their ease of use and their cosmetic pleasantness. Unlike conventional anti-sun milks and creams, it is particularly difficult to obtain anti-sun compositions in spray form having a high protection index.
  • the present invention aims to provide a composition, in particular a sunscreen composition, having only hydrophilic UV-screening agents while presenting a good UV-screening ability.
  • the present invention also aims to provide a composition, in particular a sunscreen composition, having only hydrophilic UV-screening agents while presenting good feeling on the skin.
  • Another aim of the present invention is to provide a composition, in particular a sunscreen composition, having only hydrophilic UV-screening agents while being uncolored when applied onto the skin.
  • Another aim of the present invention is to provide a sprayable composition, in particular a sprayable sunscreen composition, solving the above mentioned problems.
  • the invention aims to provide an oil-free sprayable sunscreen composition. More particularly, such composition would be a transparent spray with mist and light texture when applied onto the skin, as appreciated by the user.
  • composition comprising at least one copolymer of styrene and acrylate, at least one solubilizing agent, solubilizing the copolymer of styrene and acrylate, and one or more UV- screening agents.
  • the use of at least one copolymer of styrene and acrylate improves the sunblocking or sunscreening effect of a UV-screening composition.
  • the SPF Sun Protection Factor
  • PPD Persistent Pigment Darkening
  • SPF is preferably measured according to International standard EN ISO 24444:2010 Cosmetics - Sun protection test methods - In vivo determination of the sun protection factor (SPF).
  • PPD is skin darkening that persists more than 2 h after the end of UVA exposure. It is determined according to ISO 24442:201 1 (en) Cosmetics - Sun protection test methods - In vivo determination of sunscreen UVA protection.
  • oil-free means a composition comprising a single liquid phase which is an aqueous phase (a liquid phase including water).
  • the oil-free composition of the invention does not comprise an oily phase.
  • oil phase means, according to the invention, a phase that forms a two-phase liquid system with the aqueous phase at 20-25°C and 101325Pa. Such “oily phase” generally comprises at least one oil.
  • oil means any fatty substance which is in liquid form at room temperature (20 to 25°C) and at atmospheric pressure (760 mmHg).
  • the "fatty substance” comprises at least one hydrocarbon chain, "fat” that is to say a linear hydrocarbon chain of at least 4 carbon atoms, unsaturated or not unsaturated, optionally substituted, and in particular a linear hydrocarbon chain C 5 -C 30 .
  • the term “oil” does not cover for example water-soluble active ingredients, water- soluble UV-screening agents, and water-soluble glycols (glycol generally comprising no linear hydrocarbon chain of at least 4 carbon atoms, unsaturated or not unsaturated, optionally substituted).
  • compositions or “sunscreen agent” means any composition or ingredient that absorbs or scatters at least a part of UV radiations and prevents said UV radiations from reaching the skin, especially deeper layers of the skin (typically the dermis). This term is broadly used to cover sunblocks and sunscreens. The efficacy of such compositions or agents is typically measured by the SPF and/or PPD value.
  • keratin material means the skin (of the body, face and around the eyes), hair, eyelashes, eyebrows, bodily hair, nails, lips or mucous membranes.
  • composition according to the present invention relates to an oil-free composition, notably a sunscreen composition, comprising: a) at least one copolymer of styrene and acrylate, b) at least one solubilizing agent, solubilizing the copolymer of styrene and acrylate, wherein said solubilizing agent is selected from the group consisting of polyoxyalkylene ether of alkyl alcohols, polyalkylene glycols of saturated or unsaturated fatty acid, optionally hydrogenated, or a mixture thereof, and c) one or more UV-screening agents.
  • the compositions according to the invention may comprise organic or inorganic sunscreen agents, also known as filtering agents or filters, filtering wavelengths within the UVA and/or UVB ranges, which are hydrophilic or lipophilic or insoluble in routine cosmetic solvents.
  • the organic filters may be selected from anthranilics; cinnamic derivatives; salicylic derivatives; benzophenone derivatives; phenyl benzotriazole derivatives; benzalmalonate derivatives particularly those cited in the patent US5624663; phenyl benzimidazole derivatives; imidazolines; 4,4-diarylbutadiene derivatives; bis-benzoazolyle derivatives as described in the patents EP669323 and US 2,463,264; p-aminobenzoic acid (PABA) derivatives; methylene bis- (hydroxyphenyl benzotriazole) derivatives as described in the applications US5,237,071 , US 5, 166,355, GB2303549, DE 197 26 184 and EP8931 19; benzoxazole derivatives as described in the patent applications EP0832642, EP1027883, EP1300137 and DE10162844; filter polymers and filter silicones such as those particularly described in the application WO-
  • the composition comprises one or more hydrophilic UV-screening agents.
  • said composition comprises only hydrophilic UV-screening agents among UV-screening agents present in the composition.
  • the composition comprises 0% by weight of hydrophobic UV-screening agent, relative to the total weight of the composition.
  • hydrophilic UV-screening agent means any organic or mineral sunscreen agent capable of being fully dissolved in molecular form in a liquid aqueous phase or of being dissolved in colloidal form (for example in micellar form) in a liquid aqueous phase.
  • hydrophobic UV-screening agent or “lipophilic screening agent” means any organic or mineral sunscreen agent which can be fully dissolved in molecular state in a liquid fatty phase or which can be dissolved in colloidal form (for example in micellar form) in a liquid fatty phase.
  • organic UV-screening agents include those referred to hereinafter using the INCI name thereof:
  • n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)-benzoate particularly sold under the trade name "UVINUL A +" by BASF;
  • lipophilic filters are used:
  • the preferred hydrophilic UVA screening agent is Terephthalylidene Dicamphor Sulfonic Acid.
  • Ethylhexyl Dimethyl PABA (ESCALOL 507 from ISP);
  • Ethylhexyl Salicylate particularly sold under the name "NEO HELIOPAN OS” by SYMRISE
  • Dipropyleneglycol Salicylate particularly sold under the name "DIPSAL” by SCHER
  • Ethylhexyl Methoxycinnamate particularly sold under the trade name "PARSOL MCX” by DSM Nutritional Products, Inc.;
  • Etocrylene particularly sold under the trade name "UVINUL N35" by BASF;
  • Methylbenzylidene camphor sold under the name "EUSOLEX 6300" by MERCK;
  • Ethylhexyl triazone particularly sold under the trade name "UVINUL T150" by BASF; Diethylhexyl Butamido Triazone particularly sold under the trade name "UVASORB HEB” by SIGMA 3V;
  • Polyorganosiloxanes with a benzalmalonate function such as Polysilicone-15 particularly sold under the trade name "PARSOL SLX” by DSM Nutritional Products, Inc.;
  • lipophilic UV-B filters are used in the composition according to the invention:
  • PABA p-aminobenzoic acid
  • Glyceryl PABA and PEG-25 PABA particularly sold under the trade name "UVINUL P25" by BASF.
  • Phenylbenzimidazole Sulfonic Acid particularly sold under the trade name "EUSOLEX 232" by MERCK,
  • the preferred hydrophilic UVB screening agent is Phenylbenzimidazole Sulfonic Acid.
  • Benzophenone-1 particularly sold under the trade name "UVINUL 400" by BASF;
  • Benzophenone-2 particularly sold under the trade name "UVINUL D50" by BASF;
  • Benzophenone-3 or Oxybenzone particularly sold under the trade name "UVINUL M40" by BASF;
  • Benzophenone-6 particularly sold under the trade name "Helisorb 1 1 " by Norquay;
  • Benzophenone-8 particularly sold under the trade name "Spectra-Sorb UV-24" by American Cyanamid;
  • Drometrizole Trisiloxane particularly sold under the name "Silatrizole” by RHODIA CHIMIE or manufactured under the name “Meroxyl XL” by CHIMEX; Methylene bis-Benzotriazolyl Tetramethylbutylphenol, sold in solid form particularly under the trade name "MIXXIM BB/100” by FAIRMOUNT CHEMICAL or in micronized form in aqueous dispersion particularly under the trade name "TINOSORB M” by CIBA SPECIALTY CHEMICALS;
  • the preferential lipophilic organic UVA and UVB filters are selected from:
  • Benzophenone derivatives comprising at least one sulfonic radical such as
  • Benzophenone-4 particularly sold under the trade name "UVINUL MS 40" by BASF,
  • composition according to the invention may also comprise mineral filters which are pigments.
  • the pigments may be coated or uncoated.
  • the coated pigments are pigments which have undergone one or a plurality of chemical, electronic, mechanochemical and/or mechanical surface treatments with compounds as described for example in Cosmetics & Toiletries, February 1990, Vol. 105, p. 53-64, such as amino acids, beeswax, fatty acids, fatty alcohols, anionic surfactants, lecithins, sodium, potassium, zinc, iron or aluminum salts of fatty acids, metal (titanium or aluminum) alkoxides, polyethylene, silicones, proteins (collagen, elastin), alkanolamines, silicon oxides, metal oxides or sodium hexametaphosphate.
  • chemical, electronic, mechanochemical and/or mechanical surface treatments such as amino acids, beeswax, fatty acids, fatty alcohols, anionic surfactants, lecithins, sodium, potassium, zinc, iron or aluminum salts of fatty acids, metal (titanium or aluminum) alkoxides, polyethylene, silicones, proteins (
  • the silicones are organosilicate polymers or oligomers with a linear or cyclic, branched or cross-linked structure, with a variable molecular weight, obtained by polymerization and/or polycondensation of suitably functionalized silanes, and essentially consisting of a repetition of primary structural units wherein the silicon atoms are interconnected by oxygen atoms (siloxane bond), optionally substituted hydrocarbon radicals being directly bound via a carbon atom on said silicon atoms.
  • sicones also covers the silanes required for the preparation thereof, particularly, alkyl silanes.
  • the silicones used for coating pigments suitable for the present invention are preferably selected from the group containing alkyl silanes, polydialkylsiloxanes, and polyalkylhydrogen siloxanes. More preferentially, the silicones are selected from the group containing octyl trimethyl silane, polydimethylsiloxanes and polymethylhydrogen siloxanes.
  • the metal oxide pigments may have been treated with other surface agents, particularly cerium oxide, alumina, silica, aluminum compounds, silicon compounds, or mixtures thereof.
  • coated pigments are, for example, titanium oxides coated with:
  • TIPAQUE TTO-55 (B) and “TIPAQUE TTO-55 (A)” from ISHIHARA, and "UVT 14/4" from KEMIRA,
  • triethanolamine such as the product "STT-65-S” from TITAN KOGYO,
  • titanium oxide pigments treated with a silicone are for example Ti0 2 treated with octyl trimethyl silane such as that sold under the trade name "T 805" by DEGUSSA SILICES, Ti0 2 treated with a polydimethylsiloxane such as that sold under the trade name "70250 Cardre UF Ti02SI3" by CARDRE, anatase/rutile Ti0 2 treated with a polydimethylhydrogen siloxane such as that sold under the trade name "MICRO TITANIUM DIOXYDE USP GRADE HYDROPHOBIC" by COLOR TECHNIQUES.
  • Ti0 2 treated with octyl trimethyl silane such as that sold under the trade name "T 805" by DEGUSSA SILICES
  • Ti0 2 treated with a polydimethylsiloxane such as that sold under the trade name "70250 Cardre UF Ti02SI3" by CARDRE
  • the uncoated titanium oxide pigments are for example sold by TAYCA under the trade names "MICROTITANIUM DIOXIDE MT 500 B” or “MICROTITANIUM DIOXIDE MT600 B", by DEGUSSA under the name “P 25”, by WACKHER under the name “Oxyde de titane transparent PW”, by MIYOSHI KASEI under the name “UFTR”, by TOMEN under the name "ITS” and by TIOXIDE under the name "TIOVEIL AQ”.
  • the uncoated zinc oxide pigments are for example
  • Nanogard WCD 2025 those marketed under the name "Nanogard WCD 2025" by Nanophase Technologies;
  • coated zinc oxide pigments are for example
  • Nanophase Technologies those marketed under the name “Nanogard Zinc Oxide FN” by Nanophase Technologies (in 40% dispersion in Finsolv TN, C12-C15 alcohol benzoate);
  • the uncoated cerium oxide pigments are sold for example under the name "COLLOIDAL CERIUM OXIDE” by RHONE POULENC.
  • the uncoated iron oxide pigments are for example sold by ARNAUD under the names "NANOGARD WCD 2002 (FE 45B)", “NANOGARD IRON FE 45 BL AQ”, “NANOGARD FE 45R AQ, “NANOGARD WCD 2006 (FE 45R)", or by MITSUBISHI under the name "TY-220”.
  • coated iron oxide pigments are for example sold by ARNAUD under the names "NANOGARD WCD 2008 (FE 45B FN)", “NANOGARD WCD 2009 (FE 45B 556)", “NANOGARD FE 45 BL 345", “NANOGARD FE 45 BL”, or by BASF under the name "TRANSPARENT IRON OXIDE”.
  • metal oxide mixtures particularly of titanium dioxide and cerium dioxide, including the mixture of equal weights of titanium dioxide and cerium dioxide coated with silica, sold by IKEDA under the name "SUNVEIL A", and the mixture of titanium dioxide and zinc dioxide coated with alumina, silica and silicone such as the product "M 261 " sold by KEMIRA or coated with alumina, silica and glycerin such as the product "M 21 1 " sold by KEMIRA.
  • the pigments may be introduced into the compositions according to the invention as is or in pigment paste form, i.e. in a mixture with a dispersion agent, as described for example in the document GB-A-2206339.
  • the composition does not comprise hydrophobic UV- screening agents.
  • said UV-screening agent is selected from the group consisting of sulfonic acid based hydrophilic UV-screening agents.
  • the composition of the invention comprises phenylbenzimidazole sulfonic acid and/or terephtalylidene dicamphor sulfonic acid.
  • the composition of the invention comprises from 3% to 40% by weight, more preferably from 5% to 30% by weight, and even more preferably from 8 to 20% by weight, relative to the total weight of the composition, of one or more UV-screening agents.
  • the composition of the invention comprises from 3% to 40% by weight, more preferably from 5% to 30% by weight, and even more preferably from 8 to 20% by weight, relative to the total weight of the composition, of hydrophilic UV-screening agents.
  • composition of the present invention comprises at least one copolymer of styrene and acrylates.
  • styrene/acrylates copolymer is a polymer of styrene and a monomer consisting of acrylic acid, methacrylic acid or one of their simple esters.
  • said copolymer of styrene and acrylate is an anionic polymer of styrene and acrylate, preferably a sodium polymer of styrene and acrylate.
  • Suitable Styrene/Acrylates Copolymers include styrene/acrylate copolymers like Opulyn TM 301 from Rohm and Haas.
  • Such copolymer is in general in the form of particles, but is solubilized in the composition of the invention by a solubilizing agent.
  • the composition comprises from 0.001 % to 10% by weight, preferably from 0.001 % to 5% by weight, more preferably from 0.1 % to 3% by weight, of copolymer of styrene and acrylate, relative to the total weight of the composition.
  • composition of the present invention comprises at least one solubilizing agent.
  • the solubilizing agent is selected from the group consisting of polyoxyalkylene ether of alkyl alcohols, polyalkylene glycols of saturated or unsaturated fatty acid, optionally hydrogenated, and any mixture thereof.
  • the polyoxylakylene etherof alkyl alcohols may be chosen from polyoxyethylene ether and/or polyoxypropylene ether of alkyl alcohols, or a mixture thereof.
  • the solubilizing agent is preferably polyoxyethylene ether and/or polyoxypropylene ether of C C 12 , more preferably C C 8 , even more preferably C 4 alcohol, or a mixture thereof.
  • Mentions may be made of, for example, oxypropylenated (26 PO) oxyethylenated (26 EO) butyl alcohols.
  • the solubilizing agents of the present invention may also be chosen from polyalkylene glycols of saturated or unsaturated fatty acid, optionally hydrogenated, or its mixture.
  • the solubilizing agent is a polyalkylene glocols of castor oil, optionally hydrogenated, or its mixture.
  • Mentions may be made of oxyethylenated castor oils such as PEG-40 castor oil, PEG-60 castor oil, preferably hydrogenated, or a mixture thereof.
  • solubilizing agents such as oxyethylenated (40 EO) hydrogenated castor oil sold as a mixture with oxypropylenated (26 PO) oxyethylenated (26 EO) butyl alcohol in water under the reference Solubilisant LRI by LCW, the polyoxyl 40 hydrogenated castor oil sold under the name Cremophore RH 40, the PEG-60 hydrogenated castor oil sold under the name Eumulgin Co 60 by the company Cognis (BASF), or a mixture thereof.
  • solubilizing agents such as oxyethylenated (40 EO) hydrogenated castor oil sold as a mixture with oxypropylenated (26 PO) oxyethylenated (26 EO) butyl alcohol in water under the reference Solubilisant LRI by LCW
  • the polyoxyl 40 hydrogenated castor oil sold under the name Cremophore RH 40
  • the PEG-60 hydrogenated castor oil sold under the name Eumulgin Co 60 by the
  • the composition comprises from 0.001 % to 20% by weight, preferably from 0.01 % to 10% by weight, more preferably from 0.1 % to 5% by weight, of said solubilizing agent, relative to the total weight of the composition.
  • the composition of the invention is oil-free.
  • the composition according to the invention is an aqueous solution.
  • the composition according to the invention comprises a continuous aqueous phase optionally with solid particles dispersed therein.
  • the continuous aqueous phase comprises water.
  • the continuous aqueous phase may comprise at least one C C 4 alcohol, preferably in an amount of 0.1 % to 20% by weight, relative to the total weight of the composition.
  • An alcohol according to the present invention may preferably be chosen from linear or branched, saturated or unsaturated alcohols with at least one hydroxyl group, or dialkylene alcohols with at least one hydroxyl group.
  • the alcohol of the present invention is chosen from linear C C 4 hydroxyalkyls, C C 4 dialkylene alcohols, or a mixture thereof.
  • the composition of the invention comprises from 0.1 % to 20% by weight, relative to the total weight of the composition, of at least one C C 4 alcohol with at least one hydroxyl group, linear or branched, saturated or unsaturated.
  • the alcohol of the present invention is chosen from ethanols, ethylene glycols, dipropylene glycols, or a mixture thereof.
  • the C C 4 alcohol of the present invention is ethanol, dipropylene glycol, or a mixture thereof.
  • composition of the present invention comprises from 0.5% to 15% by weight, more preferably from 1 % to 10% by weight of the C C 4 alcohol, relative to the total weight of the composition.
  • the continuous aqueous phase may also comprise water-miscible organic solvents (at room temperature of 20-25°C), for instance polyols especially containing from 2 to 20 carbon atoms, preferably containing from 2 to 10 carbon atoms and preferentially containing from 2 to 6 carbon atoms, such as glycerol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, dipropylene glycol or diethylene glycol; glycol ethers (especially containing from 3 to 16 carbon atoms) such as mono-, di- or tripropylene glycol (C C 4 )alkyl ethers, mono-, di- or triethylene glycol (C C 4 )alkyl ethers, and mixtures thereof.
  • polyols especially containing from 2 to 20 carbon atoms, preferably containing from 2 to 10 carbon atoms and preferentially containing from 2 to 6 carbon atoms, such as glycerol, propylene glycol, but
  • the composition of the invention comprises at least one glycol, preferably selected from the group consisting of glycol alkylene, for example C C 12 alkylene glycol, a dialkylene glycol, for example Ci.Cs dialkylene glycol, and any mixture thereof.
  • glycol alkylene for example C C 12 alkylene glycol
  • dialkylene glycol for example Ci.Cs dialkylene glycol
  • the aqueous phase may also comprise stabilizers, for example sodium chloride, magnesium dichloride or magnesium sulfate.
  • compositions in accordance with the present invention may also comprise conventional cosmetic additives soluble in the aqueous phase of the composition of the invention chosen in particular from organic solvents, ionic or nonionic thickeners, softeners, humectants, additional opacifiers, stabilizers, emollients, silicones, antifoams, fragrances, preserving agents, anionic, cationic, nonionic, zwitterionic or amphoteric surfactants, active agents, fillers, polymers, propellants, acidifying or basifying agents or any other ingredient commonly used in the cosmetic and/or dermatological field.
  • conventional cosmetic additives soluble in the aqueous phase of the composition of the invention chosen in particular from organic solvents, ionic or nonionic thickeners, softeners, humectants, additional opacifiers, stabilizers, emollients, silicones, antifoams, fragrances, preserving agents, anionic, cationic, nonionic, zwit
  • organic solvents that may be mentioned are alcohols and in particular the short chain C 2 -C 8 polyols, for instance glycerol, diols for instance caprylyl glycol, 1 ,2-pentanediol, propanediol, butanediol, glycols and glycol ethers, for instance ethylene glycol, propylene glycol, butylene glycol, dipropylene glycol or diethylene glycol.
  • alcohols and in particular the short chain C 2 -C 8 polyols for instance glycerol, diols for instance caprylyl glycol, 1 ,2-pentanediol, propanediol, butanediol, glycols and glycol ethers, for instance ethylene glycol, propylene glycol, butylene glycol, dipropylene glycol or diethylene glycol.
  • Thickeners that may be mentioned include the carboxyvinyl polymers such as the Carbopol ® products (Carbomers) and the Pemulen products, for instance Pemulen TR1 ® and Pemulen TR2 ® (acrylate/C 10 -C 3 o alkyl acrylate copolymer); polyacrylamides, for instance the crosslinked copolymers sold under the names Sepigel 305 ® (CTFA name: polyacrylamide/C 13 - 14 isoparaffin/laureth 7) or Simulgel 600 (CTFA name: acrylamide/sodium acryloyldimethyltaurate copolymer/isohexadecane/polysorbate 80) by the company SEPPIC; 2-acrylamido-2- methylpropanesulfonic acid polymers and copolymers, optionally crosslinked and/or neutralized, for instance poly(2-acrylamido-2-methylpropanesulfonic acid) sold by the company Hoechst under the trade name "Hostacerin
  • acidifying agents examples that may be mentioned include mineral or organic acids, for instance hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids, for instance acetic acid, tartaric acid, citric acid or lactic acid, and sulfonic acids.
  • mineral or organic acids for instance hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids, for instance acetic acid, tartaric acid, citric acid or lactic acid, and sulfonic acids.
  • basifying agents examples that may be mentioned include aqueous ammonia, alkali metal carbonates, alkanolamines such as monoethanolamine, diethanolamine and triethanolamine, and also derivatives thereof, sodium hydroxide and potassium hydroxide.
  • the cosmetic composition comprises one or more basifying agents chosen from alkanolamines, in particular triethanolamine, and sodium hydroxide.
  • the pH of the composition in accordance with the invention is generally between 3 and 12 approximately, preferably between 5 and 1 1 approximately and even more particularly from 6.5 to 8.5.
  • active agents for caring for keratin materials such as the skin, the lips, the scalp, the hair, the eyelashes or the nails
  • active agents for caring for keratin materials such as the skin, the lips, the scalp, the hair, the eyelashes or the nails
  • examples that may be mentioned include:
  • oils are present as additives their total amount should satisfy the invention's requirement (i.e. being soluble in the aqueous phase of the composition).
  • the composition of the invention comprises: (i) from 0.001 % to 10%, preferably from 0.001 % to 5%, more preferably from 0.1 % to 3%, of copolymer of styrene and acrylate; (ii) from 0.001 to 20%, preferably from 0.01 to 10%, more preferably from 0.1 to 5%, of said solubilizing agent; and (iii) from 3 to 40% of one or more UV-screening agents, wherein % are expressed by weight relative to the total weight of the composition.
  • composition of the present invention is sprayable or, in other words, capable of being dispensed in the form of fine particles.
  • composition may be dispensed using a dispenser having a spray nozzle.
  • the present invention also relates to a device comprising a container and a spray nozzle, wherein said container contains the composition of the invention.
  • the composition is translucent, or even transparent.
  • the compositions of the invention may be applied with any device having spraying means, including suitable aerosol or non-aerosol spray devices.
  • Non-aerosol spray devices are preferred, and include for example, spray pumps such as the following: Eurogel Spray Pump (available from Seqquist Perfect, Cary III.), P1 spray pump (available from Precision, Ajax, Canada), Calmar Spray Pumps, Calmar, Inc., City of Industry, Calif, and Mitani Mist Pumps (available from MITANI VALVE CO., LTD).
  • composition of the present invention is transparent or translucent, preferably translucent.
  • translucent means that allows light to pass through without making it possible to distinguish alphanumeric characters using 5 mm thick sample.
  • transparent means "which allows light to pass through, and makes it possible to distinguish alphanumeric characters using 5 mm thick sample.
  • the viscosity of the aqueous solution according to the invention is inferior or equal to 50 UD (Mobile 1) by Rheomat at 25°C, preferably inferior or equal to 40 UD.
  • the viscosity is generally measured at 25°C with a viscosimeter PRORHEO RM R180 with Mobile 1 adapted to the viscosity of the product to be tested (mobile is chosen for having a measure between 20 and 80 for UD Unit Deviation), the measure being made after 10mn rotating the mobile inside the composition, with a shear rate from 200s "1 .
  • the composition of the present invention can be used for a non-theraputic process, such as a cosmetic process or method, for making up/caring for the keratin materials, such as the skin, in particular the face and the lips, by being applied to the skin, especially the face and the lips.
  • the present invention also relates to a use of the composition according to the present invention, as it is or in cosmetic product for making up/caring for/cleansing/make up removing products for the skin, especially for the face and the lips.
  • the invention relates to the use of at least one copolymer of styrene and acrylate for improving the sunblocking or sun screening effect of a UV-screening composition.
  • the present invention relates to a non-therapeutic cosmetic process for caring for and/or making up a keratin material, comprising the application, to the surface of the said keratin material, of at least one composition of the invention.
  • the present invention relates to a non-therapeutic cosmetic process for limiting the darkening of the skin and/or improving the colour and/or uniformity of the complexion, comprising the application, to the surface of the skin, of at least one composition as defined in any one of the preceding claims.
  • the present invention relates to a non-therapeutic cosmetic process for preventing and/or treating the signs of ageing of a keratin material, comprising the application, to the surface of the keratin material, of at least one composition as defined in any one of the preceding claims
  • a non-therapeutic cosmetic process for preventing and/or treating the signs of ageing of a keratin material, comprising the application, to the surface of the keratin material, of at least one composition as defined in any one of the preceding claims
  • the examples that follow are aimed at illustrating the compositions and processes according to this invention, but are not in any way a limitation of the scope of the invention.
  • Example 1 formulation example Water-soluble UV filters were neutralized and added in water. Then styrene/acrylates copolymer was introduced in formula and stabilized by the solubilizing agent.
  • Example 2 Example of formulation Two UV filters were neutralized by TRIETHANOLAMINE to pH around 7.0 in water, at 25 °C. They were then added to the water phase which contained other water soluble functional components such as preservatives (PHENOXYETHANOL and CAPRYLYL GLYCOL), alcohol, glycerin, and other glycols (DIPROPYLENE GLYCOL, PROPYLENE GLYCOL), at 25 °C. Then STYRENE/ACRYLATES COPOLYMER or POLYSTYRENE, when present, was introduced to the formula together with the solubilizing agent.
  • preservatives PHENOXYETHANOL and CAPRYLYL GLYCOL
  • alcohol glycerin
  • DIPROPYLENE GLYCOL glycerin
  • PROPYLENE GLYCOL PROPYLENE GLYCOL
  • Comparative composition n°1 does not contain any polymers, and therefore has no boosting effect on UV protection, with a SPF in-vivo result of 4.9 ⁇ 1 .3.
  • Comparative composition n°2 comprising POLYSTYRENE (Commercial Name MODAREZ OS- 197 - supplier: SYNTHRON) instead of STYRENE/ACRYLATES COPOLYMER, shows almost not boosting effect, with a SPF in-vivo result of 4.2 ⁇ 0.3.
  • In vivo SPF value of the composition of the invention is of 14.1 ⁇ 2.0 (Invention n°1 ) or 18.9 ⁇ 2.7 (Invention n°2), and in vivo PPD value of the composition of the invention is of 3.1 ⁇ 0.5 (Invention n°1 ) or 5.0 ⁇ 0.8 (Invention n°2). Therefore, we see that the composition according the invention is more effective than the other compositions.
  • n°1 and n°2 are both translucent sprayable sunscreen compositions.

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Abstract

La présente invention concerne une composition sans huile, notamment une composition d'écran solaire, qui comprend : a) au moins un copolymère de styrène et d'acrylate, b) au moins un agent de solubilisation, solubilisant le copolymère de styrène et d'acrylate, ledit agent de solubilisation étant sélectionné dans le groupe constitué d'un polyoxyalkylène éther d'alcools alkyliques, de polyalkylène glycols d'acide gras saturé ou insaturé, facultativement hydrogénés, d'un mélange de ceux-ci, et c) un ou plusieurs agents de protection contre les UV.
PCT/CN2014/082329 2014-07-16 2014-07-16 Composition d'écran solaire sans huile WO2016008119A1 (fr)

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CN201480080642.5A CN106659665A (zh) 2014-07-16 2014-07-16 无油防晒组合物
PCT/CN2014/082329 WO2016008119A1 (fr) 2014-07-16 2014-07-16 Composition d'écran solaire sans huile

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Cited By (1)

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FR3114503A1 (fr) * 2020-09-30 2022-04-01 L'oreal COMPOSITION D’ÉCRAN SOLAIRE COSMÉTIQUE EN GEL AQUEUX, processus de fabrication de la COMPOSITION D’ÉCRAN SOLAIRE COSMÉTIQUE EN GEL AQUEUX et utilisation de la COMPOSITION D’ÉCRAN SOLAIRE COSMÉTIQUE EN GEL AQUEUX

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CN108543106A (zh) * 2018-06-19 2018-09-18 珠海市雅莎医疗器械有限公司 一种祛斑美白的皮肤护理敷料及其制备方法

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US5945090A (en) * 1997-09-11 1999-08-31 Randall Products International Sunscreen preparation
WO2009094523A2 (fr) * 2008-01-23 2009-07-30 Playtex Products, Inc. Compositions photoprotectrices améliorées
US20090202459A1 (en) * 2008-02-11 2009-08-13 Playtex Products, Inc. Photoprotective compositions with glycol and styrene/acrylate copolymer
WO2010118415A1 (fr) * 2009-04-10 2010-10-14 L'oreal Composition protégeant contre les uv et ses procédés d'utilisation
US20110129429A1 (en) * 2008-07-02 2011-06-02 Shiseido Company, Ltd. Water-Containing Composition

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Publication number Priority date Publication date Assignee Title
US5945090A (en) * 1997-09-11 1999-08-31 Randall Products International Sunscreen preparation
WO2009094523A2 (fr) * 2008-01-23 2009-07-30 Playtex Products, Inc. Compositions photoprotectrices améliorées
US20090202459A1 (en) * 2008-02-11 2009-08-13 Playtex Products, Inc. Photoprotective compositions with glycol and styrene/acrylate copolymer
US20110129429A1 (en) * 2008-07-02 2011-06-02 Shiseido Company, Ltd. Water-Containing Composition
WO2010118415A1 (fr) * 2009-04-10 2010-10-14 L'oreal Composition protégeant contre les uv et ses procédés d'utilisation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3114503A1 (fr) * 2020-09-30 2022-04-01 L'oreal COMPOSITION D’ÉCRAN SOLAIRE COSMÉTIQUE EN GEL AQUEUX, processus de fabrication de la COMPOSITION D’ÉCRAN SOLAIRE COSMÉTIQUE EN GEL AQUEUX et utilisation de la COMPOSITION D’ÉCRAN SOLAIRE COSMÉTIQUE EN GEL AQUEUX
WO2022067402A1 (fr) * 2020-09-30 2022-04-07 L'oreal Composition de produit de protection solaire cosmétique en gel aqueux, procédé de fabrication de la composition de produit de protection solaire cosmétique en gel aqueux et utilisation de la composition de produit de protection solaire cosmétique en gel aqueux

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