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
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/04—Dispersions; Emulsions
  • A61K8/06—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
  • A61K8/35—Ketones, e.g. benzophenone
• • 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
  • A61K8/30—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
  • A61K8/42—Amides
• • 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
  • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
  • A61K8/494—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom
  • A61K8/4966—Triazines or their condensed derivatives
• • 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
  • A61K8/55—Phosphorus compounds
• • 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
  • A61K8/60—Sugars; Derivatives thereof
  • A61K8/602—Glycosides, e.g. rutin
• • 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
  • A61K8/67—Vitamins
  • A61K8/673—Vitamin B 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
  • A61K8/72—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
  • A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
  • A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
• • 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
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/41—Particular ingredients further characterized by their size
  • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
• • 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
  • A61K2800/59—Mixtures

Definitions

• the present invention relates to topical compositions comprising panthenol, a hydroxyacetophenone and a micronized UV filter.
• UV-A radiation is equally or even more important in the development of solar damage and skin diseases, such as lupus erythematosus and melanoma and non-melanoma skin cancer.
• SPF Sun Protection Factor
• sun care products need skin-friendly preservatives or preservative boosters, which can be an alternative to conventional preservatives.
• Another need of sun care products is to improve moisturization and prevent or reduce irritations on the skin.
• sun care products often contain significant amounts of fats and oils which after application on the skin, in particular on the fingers, often leads to an unwanted transfer of such fats and oils to surfaces such as touch screens which makes the surface smeary which is highly unwanted by the end consumer.
• compositions comprising a specific soothing agent and a specific preservative in combination with a micronized UV filter exhibit a significantly reduced transfer of the composition onto glass surfaces such as touch screens.
• the invention relates in one aspect to topical compositions comprising panthenol, a hydroxyacetophenone and a micronized UV filter.
• keratinous is understood here to mean external application to keratinous substances, which are in particular the skin, scalp, eyelashes, eyebrows, nails, mucous membranes and hair, preferably the skin.
• Panthenol (INCI) is also referred to as D-panthenol, dexpanthenol, provitamin B5, or (+)-(R)-2,4-dihydroxy-N-(3-hydroxypropyl)-3,3-dimethylbutyramid.
• Panthenol improves hydration, reduces itching and inflammation of the skin, improves skin elasticity, and accelerates epidermal wound healing.
• Panthenol is e.g. commercially available as D-panthenol at DSM Nutritional Products Europe Ltd.
• hydroxyacetophenone refers to 0-, m- or p-hydroxyacetophenone. Particularly preferred in all embodiments of the present invention is p-hydroxyacetophenone [CAS 99- 93-4] which is also called 1-(4-hydroxyphenyl)-ethanone and which is e.g. commercially available at Symrise as SymSave® H and which is a multifunctional cosmetic ingredient with anti-oxidant and soothing characteristics. It can be used as a preservation booster which is mild and safe.
• micronized generally refers to a particle size D v 50 of less than 200nm, preferably from about 5 nm to about 200 nm, more preferably from about 15 nm to about 100 nm (Beckmann Coulter).
• micronized UV filters are micronized insoluble, organic UV filters or micronized inorganic UV filters.
• micronized insoluble, organic UV filters are methylene bis-benzotriazolyl tetramethylbutylphenol or tris-biphenyl triazine.
• micronized inorganic UV filters are micronized titanium dioxide, micronized zinc oxide, micronized cerium oxide or micronized iron oxide.
• the term‘insoluble’ as used herein refers to an UV absorber which exhibits a solubility at RT (i.e. ⁇ 22°C) in common cosmetic oils such as e.g. C12-15 alkyl benzoate, propyleneglycol, mineral oil but also in water of less than 0.05 wt.-%, preferably of less than 0.3 wt.-%, most preferably of less than 0.01 wt.-%.
• the micronized UV filter is either a UVA filter or a UVB filter or a broadband (UVA and UVB) filter.
• the micronized UV filter is a micronized insoluble, organic UV filter.
• the micronized UV filter according to the present invention is an insoluble, organic UV-filter having a mean particle size distribution D v 50 as determined by light scattering of less than 200 nm.
• the micronized insoluble, organic UV filter has a mean particle size distribution D v 50 determined by light scattering (i.e. by Photon Correlation Spectroscopy (PCS)) selected in the range of 30 to 150 nm, most preferably in the range of 35 to 125 nm, such as in particular in the range of 40 to 1 10 nm.
• PCS Photon Correlation Spectroscopy
• the micronized insoluble organic UV absorber exhibits a D v 10 in the range of 50 to 80 nm, a D v 50 in the range of 75 to 125 nm and a D v 90 in the range of 140 to 180 nm, and even more preferably a D v 10 in the range of 55 to 75 nm, a D v 50 in the range of 80 to 1 10 nm and a D v 90 in the range of 150 to 175 nm.
• the particle size as given herein is generally determined in a suspension of the micronized insoluble organic UV absorber in water such as ultrapure water (Mili-Q purified), preferably at a concentration level of 3 mg/ml using a Beckman Coulter Delsa Nano S.
• the topical composition comprises the micronized UV filter as an aqueous dispersion containing micronized particles of micronized UV filter.
• the concentration of the micronized UV filter in the aqueous dispersion is in the range of 10 to 90 wt-%, 20 to 80 wt-%, 30 to 70 wt-%, more preferably in the range of 40 to 60 wt-%, for instance in the range of 45 to 55 wt-%.
• the aqueous dispersion containing the micronized UV filter additionally contains a Cs-iealkyl poly-glucoside.
• alkyl poly-glucoside refers to a class of non-ionic surfactants having the generic formula C n H2 +n 0(C6HI O 05) X H , in which n is an integer selected in the range of 2 to 22 and x refers to the mean polymerization level of the glucoside moiety (mono-, di-, tri-, oligo-, and poly-glucosides).
• APG alkyl poly-glucoside
• These alkyl poly-glucosides generally exhibit a mean polymerisation level of the glucoside moiety ranging from 1 to 1.7, preferably from 1.2 to 1.6 such as from 1.4 to 1.6.
• Ce-io alkyl poly-glucoside consisting essentially of caprylyl (Cs) and capryl (C10) poly- glucosides.
• such caprylyl (Cs) and capryl (C10) poly-glucosides furthermore exhibit a ratio (%/%, wherein all % are area-% determined by HPLC-MS) of caprylyl (Cs) mono-glucoside to capryl (C10) mono-glucoside in the range of 3:1 to 1 :3, preferably in the range of about 2:1 to 1 :2, most preferably in the range of 1.5:1 to 1 :1 .5.
• Cs -io alkyl poly-glucoside preferably contain no more than 3 wt.-%, more preferably no more than 2 wt.-%, most preferably no more than 1.5 wt.-% of C12 alkyl mono-glucoside (as determined by HPLC-MS). It is understood, that such alkyl poly-glucosides are basically free of any higher (i.e. CI4-16) alkyl polyglucosides.
• a particularly advantageous Cs-io alkyl poly-glucoside according to the present invention is made from glucose derived from corn and Cs and C10 fatty alcohols derived from coconut and palm kernel oils, which is e.g. sold as an aqueous dispersion under the tradename Green APG 0810 by Shanghai Fine Chemical.
• such Cs-iealkyl poly-glucoside or mixtures thereof is/are present in a concentration of 2 to 15 wt.-%, preferably 5 to 10 wt.-%, based on the total weight of the aqueous dispersion.
• such Cs-i 6 alkyl poly-glucoside is Cs-ioalkyl poly-glucoside.
• the micronized UV filter is methylene bis-benzotriazolyl tetramethylbutylphenol or tris-biphenyl triazine.
• the UV filter is micronized methylene bis-benzotriazolyl tetramethylbutylphenol.
• Methylene bis-benzotriazolyl tetramethylbutylphenol (INCI), also referred to as MBBT, 2,2'- methylene-bis-(6-(2H-benzotriazole-2-yl)-4-(1 ,1 ,3,3-tetramethylbutyl)-phenol, is sold as an aqueous dispersion comprising MBBT and an alkyl poly-glucoside by DSM Nutritional Products Ltd (PARSOL® MAX) as well as by BASF SE (Tinosorb® M).
• Methylene bis- benzotriazolyl tetramethylbutylphenol is a broad-spectrum UV filter which filters UVA and UVB light.
• Tris-biphenyl triazine is also referred to as 2,4,6-tris([1 , 1 '-biphenyl]-4-yl)-1 ,3,5-T riazine, is a UV filter sold as Tinosorb® A2B by BASF SE.
• the amount of the micronized UV filter (based on active), preferably of methylene bis-benzotriazolyl tetramethylbutylphenol or tris-biphenyl triazine, most preferably of methylene bis-benzotriazolyl tetramethylbutylphenol present in the topical compositions according to the present invention is advantageously selected in the range of 0.1 to 20 wt.-%, in particular in the range of 0.2 to 15 wt.-%, most particular in the range of 0.3 to 10 wt.-% based on the total weight of the composition. Further preferred ranges are 0.5 to 10 wt-%, 1 to 8 wt-% and 1 to 5 wt-% and 2 to 5 wt.-% based on the total weight of the composition.
• the amount of panthenol present in the topical compositions according to the present invention is advantageously selected in the range of 0.001 to 10 wt.-%, preferably in the range of 0.01 to 7wt-%, more preferably in the range of 0.1 to 6 wt-% and most preferably in the range of 0.5 to 5 wt-% based on the total weight of the composition.
• Further preferred ranges are 0.5 to 4.5 wt-%, 0.6 to 4 wt-%, 0.6 to 3.5 wt-%, 1 to 5 wt.-%, 2 to 5 wt.-%, 3 to 5 wt.-%, 1 to 6 wt.-%, 2 to 6 wt.-%, 3 to 6 wt.-% as well as 4 to 6 wt.-% of panthenol based on the total weight of the composition.
• the amount of the hydroxyacetophenone present in the topical compositions according to the present invention is advantageously selected in the range of 0.001 to 5 wt.-%, preferably in the range of 0.01 to 4 wt-%, more preferably in the range of 0.1 to 3 wt-% based on the total weight of the composition. Further preferred ranges are 0.005 to 4.5 wt-%, 0.05 to 4.3 wt-%, and 0.25 to 2.9 wt-% as well as 0.25 to 2 wt.-% or 0.25 to 1 wt.-% based on the total weight of the composition.
• One embodiment of the present invention relates to a method for the use of the micronized UV filter, in particular in combination with panthenol and a hydroxyacetophenone as described and defined herein in a topical composition according to the present invention for reducing the transfer of the topical composition to glass or plastic surfaces.
• the present invention relates to a method for the use of methylene bis-benzotriazolyl tetramethylbutylphenol, panthenol and p-hydroxyacetophenone in a topical composition according to the present invention for reducing the transfer of the topical composition to glass or plastic surfaces.
• the invention relates to the use of a micronized UV-filter, panthenol and a hydroxyacetophenone as described and defined to reduce the transfer of fat(s) and oil(s) contained in a topical composition according to the present invention to a surface such as in particular to a glass or plastic surface such as e.g. a touch screen.
• the invention relates to a method to reduce the transfer of fat(s) and / or oil(s) to a surface such as in particular to a glass or plastic surface such as e.g. a touch screen, said method encompassing the addition of a micronized UV-filter, panthenol and hydroxyacetophenone as described and defined into a topical composition according to the present invention comprising such fat(s) and oil(s).
• Preferred topical compositions in all embodiments of the present invention are emulsions containing an oily phase and an aqueous phase such as in particular an O/W, W/O, Si/W, W/Si, O/W/O, W/O/W multiple or a pickering emulsions.
• the amount of the oily phase (i.e. the phase containing all oils and fats) present in such emulsions is preferably at least 10 wt.-%, such as in the range of 10 to 60 wt.-%, preferably in the range of 15 to 50 wt.-%, most preferably in the range of 15 to 40 wt.-%, based on the total weight of the composition.
• the present invention relates to the topical composition according to the embodiments described herein for the use as sunscreen, respectively to the use of the topical composition according to the embodiments described herein as sunscreen.
• micronized UV filter in particular micronized methylene bis-benzotriazolyl tetramethylbutylphenol or tris-biphenyl triazine, also further UV filters may be present in the topical composition according to the present invention.
• UV filters are all commercially available UV-filter substances such as in particular (INCI names) polysilicone-15, phenylbenzimidazol sulfonic acid, 3-benzylidene camphor, octocrylene, ethylhexyl methoxycinnamate, ethylhexyl salicylate, homosalate, ethylhexyl triazone, zinc oxide, bis- ethylhexyloxyphenol methoxyphenyl triazine, diethylhexyl butamido triazone, benzophenon- 3, titanium dioxide, butyl methoxydibenzoyl methane, disodium phenyl dibenzimidazole tetrasulfonate and diethylamino hydroxybenzoyl hexyl benzoate without being limited thereto.
• the topical compositions according to the present invention comprise as further UV-filters at least octocrylene
• topical compositions according to the present invention are free of methylidene camphor (3-(4-methylbenzylidene)camphor) and / or octocrylene.
• topical compositions according to the present invention are free of polyethylene glycol, polyethylene glycol ethers and polyethylene glycol esters (PEG-derivatives).
• topical compositions according to the present invention are free of parabens, benzethonium chloride, piroctone olamine, lauroyl arginate, benzoic acid, sorbic acid, methylisothiazolinone, chloromethylisothiazolinone, bronopol, benzalkonium chlorides, formaldehyde releasers, salicylic acid, triclosan, dehydroacetic acid, DMDM hydantoin, chlorophenesin, IPBC.
• topical compositions according to the invention comprise a physiologically acceptable medium, that is to say a medium compatible with keratinous substances, such as the skin, mucous membranes, and keratinous fibers.
• physiologically acceptable medium is a cosmetically acceptable carrier.
• cosmetically acceptable carrier refers to all carriers and/or excipients and / or diluents conventionally used in cosmetic compositions.
• Preferred topical compositions according to the invention are skin care preparations, decorative preparations, and functional preparations.
• Examples of skin care preparations are, in particular, light protective preparations, antiageing preparations, preparations for the treatment of photo-ageing, body oils, body lotions, body gels, treatment creams, skin protection ointments, skin powders, moisturizing gels, moisturizing sprays, face and/or body moisturizers, skin-tanning preparations (i.e. compositions for the artificial/sunless tanning and/or browning of human skin), for example self-tanning creams as well as skin lightening preparations.
• Examples of decorative preparations are, in particular, lipsticks, eye shadows, mascaras, dry and moist make-up formulations, rouges and/or powders.
• Examples of functional preparations are cosmetic or pharmaceutical compositions containing active ingredients such as hormone preparations, vitamin preparations, vegetable extract preparations, anti-ageing preparations, and/or antimicrobial (antibacterial or antifungal) preparations without being limited thereto.
• the topical compositions according to the invention are light- protective preparations (sun care products), such as sun protection milks, sun protection lotions, sun protection creams, sun protection oils, sun blocks or day care creams with a SPF (sun protection factor).
• light- protective preparations such as sun protection milks, sun protection lotions, sun protection creams, sun protection oils, sun blocks or day care creams with a SPF (sun protection factor).
• SPF unsun protection factor
• compositions according to the present invention may be in the form of a suspension or dispersion in solvents or fatty substances, or alternatively in the form of an emulsion or micro emulsion (in particular of oil-in-water (0/W-) or water-in-oil (W/0-)type, silicone-in-water (Si/W-) or water-in-silicone (W/Si-)type, PIT-emulsion, multiple emulsion (e.g.
• oil-in-water-in oil (0/W/0-) or water-in-oil-in-water (W/0/W-)type
• pickering emulsion hydrogel, alcoholic gel, lipogel, one- or multiphase solution or vesicular dispersion or other usual forms, which can also be applied by pens, as masks or as sprays.
• compositions according to the present invention are advantageously in the form of an oil-in-water (O/W) emulsion comprising an oily phase dispersed in an aqueous phase in the presence of an O/W emulsifier.
• O/W oil-in-water
• the preparation of such O/W emulsions is well known to a person skilled in the art and illustrated in the examples.
• the O/W emulsifier according to the present invention is a phosphate ester emulsifier.
• phosphate ester emulsifier refers to phosphate esters emulsifier of formula (II) formula (II) wherein R 5 , R 6 and R 7 may be hydrogen, an alkyl of from 1 to 22 carbons, preferably from 12 to 18 carbons; or an alkoxylated alkyl having 1 to 22 carbons, preferably from 12 to 18 carbons, and having 1 or more, preferably from 2 to 25, most preferably 2 to 12, moles ethylene oxide, with the provision that at least one of R 5 , R 6 and R 7 is an alkyl or alkoxylated alkyl as previously defined but having at least 6 alkyl carbons in said alkyl or alkoxylated alkyl group.
• Monoesters in which R 5 and R 6 are hydrogen and R 7 is selected from alkyl groups of 10 to 18 carbons and alkoxylated fatty alcohols of 10 to 18 carbons and 2 to 12 moles ethylene oxide are preferred.
• the preferred phosphate ester emulsifier are Ce-io Alkyl Ethyl Phosphate, C9-15 Alkyl Phosphate, Ceteareth-2 Phosphate, Ceteareth-5 Phosphate, Ceteth- 8 Phosphate, Ceteth-10 Phosphate, Cetyl Phosphate, C6-10 Pareth-4 Phosphate, C12-15 Pareth-2 Phosphate, C12-15 Pareth-3 Phosphate, DEA-Ceteareth-2 Phosphate, DEA-Cetyl Phosphate, DEA-Oleth-3 Phosphate, Potassium cetyl phosphate, Deceth-4 Phosphate,
• O/W emuslifiers encompass PEG-30 Dipolyhydroxystearate, PEG-4 Dilaurate, PEG-8 Dioleate, PEG-40 Sorbitan Peroleate, PEG-7 Glyceryl Cocoate, PEG-20 Almond Glycerides, PEG-25 Hydrogenated Castor Oil, Glyceryl Stearate (and) PEG-100 Stearate , PEG-7 Olivate, PEG-8 Oleate, PEG-8 Laurate, PEG-60 Almond Glycerides, PEG-20 Methyl Glucose Sesquistearate, PEG-40 Stearate, PEG-100 Stearate, PEG-80 Sorbitan Laurate, Steareth-2, Steareth-12, Oleth-2, Ceteth-2, Laureth-4, Oleth-10, Oleth-10/Polyoxyl 10 Oleyl Ether, Ceteth-10, lsosteareth-20, Ceteareth-20, Oleth-20, Steare
• emulsifiers are sorbitan oleate, sorbitan sesquioleate, sorbitan isostearate, sorbitan trioleate, Lauryl Glucoside, Decyl Glucoside, Sodium Stearoyl Glutamate, Sucrose Polystearate and Hydrated Polyisobuten.
• one or more synthetic polymers may be used as an emulsifier.
• PVP eicosene copolymer acrylates/Cio-30 alkyl acrylate crosspolymer, acrylates/steareth-20 methacrylate copolymer, PEG-22/dodecyl glycol copolymer, PEG-45/dodecyl glycol copolymer, and mixtures thereof.
• Another particular suitable class of O/W emulsifiers are non-ionic self-emulsifying system derived from olive oil e.g. known as (INCI Name) cetearyl olivate and sorbitan olivate (Chemical Composition: sorbitan ester and cetearyl ester of olive oil fatty acids) sold under the tradename OLIVEM 1000.
• polymeric emulsifiers such as hydrophobically modified polyacrylic acid such as Acrylates/C 10-30 Alkyl Acrylate Crosspolymers which are commercially available under the tradename Pemulen ® TR-1 and TR-2 by Noveon.
• polyglycerol esters or diesters of fatty acids also called polyglyceryl ester/ diester (i.e. a polymer in which fatty acid(s) is/ are bound by esterification with polyglycerine), such as e.g. commercially available at Evonik as Isolan GPS [INCI Name Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate (i.e. diester of a mixture of isostearic, polyhydroxystearic and sebacic acids with Polyglycerin-4)] or Dehymuls PGPH available at Cognis (INCI Polyglyceryl-2 Dipolyhydroxystearate).
• polyglyceryl ester/ diester i.e. a polymer in which fatty acid(s) is/ are bound by esterification with polyglycerine
• Isolan GPS Isolan GPS
• Dehymuls PGPH available at Cognis
• polyalkylenglycolether such as Brij 72 (Polyoxyethylen(2)stearylether) or Brij 721 (Polyoxyethylene (21 ) Stearyl Ether e.g. available at Croda.
• the at least one O/W respectively Si/W emulsifier is preferably used in an amount of 0.5 to 10 wt.-% such as in particular in the range of 0.5 to 5 wt.-% such as most in particular in the range of 0.5 to 4 wt.-% based on the total weight of the composition.
• Suitable W/O- or W/Si-emulsifiers are polyglyceryl-2-dipolyhydroxystearat, PEG-30 dipolyhydroxystearat, cetyl dimethicone copolyol, polyglyceryl-3 diisostearate polyglycerol esters of oleic/isostearic acid, polyglyceryl-6 hexaricinolate, polyglyceryl-4-oleate, polygylceryl-4 oleate/PEG-8 propylene glycol cocoate, magnesium stearate, sodium stearate, potassium laurate, potassium ricinoleate, sodium cocoate, sodium tallowate, potassium castorate, sodium oleate, and mixtures thereof.
• W/Si-emulsifiers are Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone and/or PEG-9 Polydimethylsiloxyethyl Dimethicone and/or Cetyl PEG/PPG-10/1 Dimethicone and/or PEG- 12 Dimethicone Crosspolymer and/or PEG/PPG-18/18 Dimethicone.
• the at least one W/O emulsifier is preferably used in an amount of about 0.001 to 10 wt.-%, more preferably in an amount of 0.2 to 7 wt.-% with respect to the total weigh of the composition.
• the topical compositions according to the present invention furthermore advantageously contain at least one co-surfactant such as e.g. selected from the group of mono- and diglycerides and / or fatty alcohols.
• the co-surfactant is generally used in an amount selected in the range of 0.1 to 10 wt.-%, such as in particular in the range of 0.5 to 7 wt.-%, such as most in particular in the range of 1 to 5 wt.-%, based on the total weight of the composition.
• Particular suitable co-surfactants are selected from the list of alkyl alcohols such as cetyl alcohol (Lorol C16, Lanette 16), cetearyl alcohol (Lanette O), stearyl alcohol (Lanette 18), behenyl alcohol (Lanette 22), glyceryl stearate, glyceryl myristate (Estol 3650), hydrogenated coco-glycerides (Lipocire Na10) as well as mixtures thereof
• compositions in form of O/W emulsions according to the invention can be provided, for example, in all the formulation forms for O/W emulsions, for example in the form of serum, milk or cream, and they are prepared according to the usual methods.
• the compositions which are subject-matters of the invention are intended for topical application and can in particular constitute a dermatological or cosmetic composition, for example intended for protecting human skin against the adverse effects of UV radiation (antiwrinkle, anti-ageing, moisturizing, anti-sun protection and the like).
• compositions constitute cosmetic composition and are intended for topical application to the skin.
• a subject-matter of the invention is a method for the cosmetic treatment of keratinous substances such as in particular the skin, wherein a composition as defined above is applied to the said keratinous substances such as in particular to the skin.
• the method is in particular suitable to protect the skin against the adverse effects of UV- radiation such as in particular sun-burn and / or photoageing.
• compositions according to the invention may comprise further ingredients such as ingredients for skin lightening; tanning prevention; treatment of hyperpigmentation; preventing or reducing acne, wrinkles, lines, atrophy and/or inflammation; chelators and/or sequestrants; anti-cellulites and slimming (e.g. phytanic acid), firming, moisturizing and energizing, self-tanning, soothing, as well as agents to improve elasticity and skin barrier and/or further UV-filter substances and carriers and/or excipients or diluents conventionally used in topical compositions. If nothing else is stated, the excipients, additives, diluents, etc.
• compositions according to the present invention are suitable for topical compositions according to the present invention.
• the necessary amounts of the cosmetic and dermatological adjuvants and additives can, based on the desired product, easily be determined by the skilled person.
• the additional ingredients can either be added to the oily phase, the aqueous phase or separately as deemed appropriate.
• the mode of addition can easily be adapted by a person skilled in the art.
• the cosmetically active ingredients useful herein can in some instances provide more than one benefit or operate via more than one mode of action.
• the topical cosmetic compositions of the invention can also contain usual cosmetic adjuvants and additives, such as preservatives/ antioxidants, fatty substances/ oils, water, organic solvents, silicones, thickeners, softeners, emulsifiers, sunscreens, antifoaming agents, moisturizers, aesthetic components such as fragrances, surfactants, fillers, sequestering agents, anionic, cationic, nonionic or amphoteric polymers or mixtures thereof, propellants, acidifying or basifying agents, dyes, colorings/colorants, abrasives, absorbents, essential oils, skin sensates, astringents, antifoaming agents, pigments or nanopigments, e.g.
• cosmetic adjuvants and additives such as preservatives/ antioxidants, fatty substances/ oils, water, organic solvents, silicones, thickeners, softeners, emulsifiers, sunscreens, antifoaming agents, moisturizers, aesthetic components such as fragrances, surfactants
• cosmetic ingredients commonly used in the skin care industry, which are suitable for use in the compositions of the present invention are for example described in the International Cosmetic Ingredient Dictionary & Handbook by Personal Care Product Council (http://www.personalcarecouncil.org/), accessible by the online INFO BASE (http://online.personalcarecouncil.org/jsp/Home.jsp), without being limited thereto.
• the topical compositions according to the invention in general have a pH in the range of 3 to 10, preferably a pH in the range of 4 to 8 and most preferably a pH in the range of 4 to 7.
• the pH can easily be adjusted as desired with suitable acids such as e.g. citric acid or bases such as NaOH according to standard methods in the art.
• the topical compositions according to the invention may further contain one or more emollients which soothe and soften the skin.
• the emollient may be dicaprylyl carbonate or Ci2-isalkyl benzoate.
• Further emollients are silicone (dimethicone, cyclomethicone), vegetable oils (grape seed, sesame seed, jojoba, etc.), butters (cocoa butter, shea butter), alcohols (stearyl alcohol, cetyl alcohol), and petrolatum derivatives (petroleum jelly, mineral oil).
• the cosmetic compositions according to the present invention advantageously comprise preservatives or preservative booster.
• the additional preservatives respectively preservative booster is selected from the group consisting of phenoxyethanol, ethylhexylglycerin, glyceryl caprylate, caprylyl glycol, 1 ,2-hexanediol, propanediol, propylene glycol as well as mixtures thereof.
• the preservative respectively preservative booster is preferably used in an amount of 0.01 to 2 wt.-%, more preferably in an amount of 0.05 to 1.5 wt.-%, most preferably in an amount of 0.1 to 1.0 wt.-%, based on the total weight of the composition. It is particularly preferred, that the cosmetic compositions according to the invention does not contain any further/ other preservatives such as e.g. parabens and / or methylisothiazolidine.

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• 2018
  • 2018-12-17 CN CN201880082168.8A patent/CN111511343A/zh active Pending
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