US20130202543A1 - Use of polyols for enhancing the cooling effect of a cooling substance and cooling mixtures having an enhanced cooling effect - Google Patents

Use of polyols for enhancing the cooling effect of a cooling substance and cooling mixtures having an enhanced cooling effect Download PDF

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US20130202543A1
US20130202543A1 US13/704,037 US201013704037A US2013202543A1 US 20130202543 A1 US20130202543 A1 US 20130202543A1 US 201013704037 A US201013704037 A US 201013704037A US 2013202543 A1 US2013202543 A1 US 2013202543A1
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peg
sodium
dimethicone
cooling
acid
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Thomas Küper
Heiko Oertling
Sabine Lange
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Symrise AG
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Symrise AG
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    • 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
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/42—Amides
    • 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
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • 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
    • A61K2800/24—Thermal properties
    • A61K2800/244—Endothermic; Cooling; Cooling sensation

Definitions

  • the invention relates to a use of one, two, three or more certain polyols for enhancing the cooling effect of a cooling substance. It further relates to a cooling mixture comprising a cooling effect enhancing polyol and a cooling substance consisting of one or more physiologically cooling compounds and optionally further compounds having an additional enhancing effect on the cooling effect of the substance. Moreover the invention relates to a method for producing a corresponding cooling mixture and a method for generating an enhanced cooling effect of a cooling substance on the skin or a mucous membrane.
  • Cooling substances are used in the area of personal care for application onto the skin, hair and mucous membranes. Such applications include lotions and creams, skin cleansers, shampoos, hair conditioners, cleaning tissues, sanitary towels, tampons, nappies as well as other cosmetic products such as lipsticks or Eau de Toilette.
  • a multiplicity of cooling substances of natural and synthetic origin has been described. The most well known substance out of these is menthol, in particular I-menthol, which was initially found in peppermint oil. Menthol binds to the TRPM8 (Transient Receptor Potential Melastatin 8) receptor also known under the designation of CMR (Cold Menthol Receptor 1).
  • This receptor belongs to the family of TRPs (Transient Receptor Potential Ion Channels) and is expressed in specific peripheral neurons, where it forms a pore consisting of four protein monomers. Low temperatures as well as the binding of cooling substances to the channel will open the latter and will thus allow calcium and sodium ions to enter through the membrane. This flow of ions results in a depolarization of the membrane and a generation of an action potential which will be converted in the brain into a sensation of cold (Clapham D E et al 2005 , Pharmacological reviews, 57 (4), 427-450; Peier A M et al 2005 , Cell, 108 (5), 705-15).
  • TRPs Transient Receptor Potential Ion Channels
  • Activators of TRPM8 may have an repellent effect on insects (WO 2002/015692, WO 2004/000023, US 2004/0028714) and may also have calming properties during the treatment of inflammation-induced pain and hyperalgesia as well as a hyperactive bladder (Beck B. Cell Calcium, 41, 2007, 285-294; Levine J. D. Biochim. Biophys. Acta, Mol. Basis. Dis. 1772, 2007, 989-1003; Mukerji G., BMC Urology 6, 2006, 6; US 2003/0207904; US 2005/6893626, Lashinger E S. Am. J. Physiol. Renal Physiol. 295, 2008, 303-810).
  • cooling substances Due to their close structural relationship to menthol, many cooling substances have an odor similar to that of mint and are therefore not suitable for topical application. In addition, a high concentration of more than 3% has to be used in many physiological cooling substances, in order to induce a tangible cooling effect. High concentrations of cooling substances may cause undesired side effects such as stinging and burning on the skin (Wasner G., Brain, 2004, 127, 1159-1171; Green B G, Behav Brain Res, 2007, 176, 284-291).
  • This object is achieved by a use of one, two, three or more polyols selected from the group (A) consisting of branched or unbranched alkanediols and branched or unbranched alkanetriols each having 3-12 carbon atoms for enhancing the cooling effect of a cooling substance, the substance consisting of a physiologically cooling compound or
  • the solution of the above object of the invention may be also formulated as a use of one, two, three or more polyols selected from the group A consisting of branched or unbranched alkanediols and branched or unbranched alkanetriols each having 3-12 carbon atoms for enhancing the cooling effect of a cooling substance, the cooling substance consisting of
  • a physiologically cooling compound different to 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate or (iii) a mixture of 2, 3, 4, 5, 6, 7, 8, 9, 10 or more physiologically cooling compounds different to 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate or (iv) a mixture of one, 2, 3, 4, 5, 6, 7, 8, 9 or more physiologically cooling compounds with 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate on the skin or a mucous membrane.
  • Physiologically cooling compounds in terms of the present text are compounds that are able to provide a cooling sensation case that a sufficient amount is topically applicated.
  • an amount of cooling substance is used that is so low that the cooling effect may be perceived only as a result of an enhancement by the corresponding polyols (and optionally by an enhancement of further compounds, see below).
  • the perceptibility of the cooling effect is to be determined by means of a panel test wherein the corresponding mixture is applied onto the skin of at least 10 test persons. If in the course of this, preferably in combination with a blind test, 90% of the test persons confirm a cooling effect, then this will preferably correspond to the criteria for the presence of a corresponding effect.
  • Topical applications in terms of the present text are applications where the corresponding active substance or the combination of active substances is brought into contact with the skin or with a mucous membrane. It is especially preferred that the evaluation of a cooling effect and its enhancement is made analog to the application example presented below.
  • Preferred physiologically cooling compounds are selected from the group consisting of 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate, N-ethyl-p-menthane carboxamide (WS-3, also referred to as menthane-3-carboxylic acid-N-ethyl amide), N-2,3-trimethyl-2-isopropyl butane amide (WS-23), menthyl lactate (Frescolat® ML), menthone glycerine acetal (Frescolat® MGA), mono-menthyl succinate (Physcool®), mono-menthyl glutarate, O-menthyl-glycerine, menthyl-N,N-dimethyl succinamate, N-(4-cyano methyl phenyl)-p-menthane carboxamide, N-(2-(pyridin-2-yl)ethyl)-3-p-menthane carboxamide,
  • L-menthol, D-menthol, racemic menthol, isomenthol, neoisomenthol, neomenthol) menthyl ether e.g. (I-menthoxy)-1,2-propanediol, (I-menthoxy)-2-methyl-1,2-propanediol, 1-menthyl-methyl ether
  • menthyl ester e.g.
  • menthyl formiate menthyl acetate, menthyl isobutyrate, menthyl lactates, L-menthyl-L-lactate, L-menthyl-D-lactate, menthyl-(2-methoxy)acetate, menthyl-(2-methoxy ethoxy)acetate, menthyl pyroglutamate), N-(4-cyano methyl phenyl)-p-menthane carboxamide, N-(2-(pyridin-2-yl)ethyl)-3-p-menthane carboxamides, menthyl carbonates (e.g.
  • menthyl propylene glycol carbonate menthyl ethylene glycol carbonate, menthyl glycerine carbonate or mixtures thereof
  • semi-esters of mentholes with a dicarboxylic acid or their derivatives e.g. mono-menthyl succinate, mono-menthyl glutarate, mono-menthyl malonate, O-menthyl succinic acid ester-N,N-(dimethyl)amide, O-menthyl succinic acid ester amide), menthane carboxylic acid amide (e.g.
  • Further preferred cooling compounds are N-(4-cyano methyl phenyl)-p-menthane carboxamide, N-(2-(pyridin-2-yl)ethyl)-3-p-menthane carboxamides, menthyl ether (e.g. (I-menthoxy)-1,2-propanediol, (I-menthoxy)-2-methyl-1,2-propanediol), more polar menthyl esters (e.g.
  • menthyl lactates L-menthyl-L-lactate, L-menthyl-D-lactate, menthyl-(2-methoxy)acetate, menthyl-(2-methoxy ethoxy)acetate, menthyl pyroglutamate
  • menthyl carbonates e.g. menthyl propylene glycol carbonate, menthyl ethylene glycol carbonate, menthyl glycerine carbonate
  • the semi-esters of menthols with a dicarboxylic acid or the derivatives thereof e.g.
  • L-menthone glycerine ketal 2,3-dimethyl-2-(2-propyl)-butyric acid derivatives (e.g. 2,3-dimethyl-2-(2-propyl)-butyric acid-N-methyl amide), pyrrolidone derivatives of cycloalkyl dione derivatives (e.g. 3-methyl-2(1-pyrrolidinyl)-2-cyclopentene-1-one) or tetrahydropyrimidine-2-one (e.g. Icilin or related compounds such as those described in WO 2004/026840).
  • cycloalkyl dione derivatives e.g. 3-methyl-2(1-pyrrolidinyl)-2-cyclopentene-1-one
  • tetrahydropyrimidine-2-one e.g. Icilin or related compounds such as those described in WO 2004/026840.
  • cooling compounds are compounds selected from the group consisting of 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate, N-ethyl-p-menthane carboxamide (WS-3, also referred to as menthane-3-carboxylic acid-N-ethyl amide), menthyl lactate (Frescolat® ML), menthone glycerine acetal (Frescolat® MGA), N-(4-cyano methyl phenyl)-p-menthane carboxamide and (I-menthoxy)-1,2-propanediol.
  • WS-3 also referred to as menthane-3-carboxylic acid-N-ethyl amide
  • Menthyl lactate Frescolat® ML
  • menthone glycerine acetal Frescolat® MGA
  • Preferred for a use according to the invention is that a or the polyol or several or all of the polyols of group A is or are selected from the group consisting of the branched or unbranched alkanediols having 3 to 12 carbon atoms.
  • the preferred polyols show an improved enhancement effect on the effect of cooling substances.
  • Preferred polyols for use according to the invention are discussed below.
  • the ratio between amount by weight of the cooling substance and the amount by weight of the polyol or the polyols of group A taken together is 1:20 to 1:0.1, preferably 1:10 to 1:0.5 and most preferably 1:5 to 1:1.
  • cooling mixtures are made by mixing the compounds to be used. Accordingly, the following described mixtures are part of the invention, too. It is a matter of course that the use may be carried out in connection with the mixtures and especially preferred mixtures according to the invention, too. The same is valid for cosmetic compositions according to the invention and sanitary articles according to the invention in particular in the respective preferred embodiments which are described below.
  • cooling mixture comprising or consisting of
  • the cooling mixture according to the invention shows an enhanced cooling effect of the cooling substance (i.e. the cooling compound or the cooling compounds from which the cooling substance consists). It has to be noted that the enhancing effect exhibited by the alkandiol or the alkantriol can be further enhanced by certain substances/compounds which will be described below.
  • cooling composition comprises 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate it is preferred at least part of this compound is present in the (1R,2S,5R) configuration (formula II):
  • the 1R,2S,5R isomer of 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate is particularly accessible for an enhancement of the cooling effect and may in addition by synthesized in an economical manner via L-menthol as a starting compound.
  • a cooling mixture according to the invention is preferred, wherein the proportion of 5-methyl-2-(propan-2-yl)cyclohexyl-N-ethyloxamate present in the (1R,2S,5R) configuration in relation to the overall proportion of 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate is ⁇ 45%, preferably ⁇ 70% and particularly probably ⁇ 97%.
  • a cooling mixture according to the invention is preferred, wherein the ratio between the amount of cooling substance (especially of 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate) and the amount of substance of the polyol or of the polyols of group A taken together is 1:20 to 1:0.1, preferably 1:10 to 1:0.5 and particularly preferably 1:5 to 1:1.
  • a or the polyol or several or all of the polyols of group A is or are selected from the group consisting of branched or unbranched alkanediols having 3 to 12 carbon atoms.
  • cooling mixture according to the invention if in a or the alkanepolyol of group A or in several or all of the alkanepolyols of group A both or at least two of the hydroxyl groups are positioned vicinal to one another.
  • a cooling mixture according to the invention is preferred wherein exclusively one or more branched or unbranched 1,2-alkanediols having 5 to 12 carbon atoms are used as component (b).
  • the last-mentioned preferred variants of the cooling mixture each result, either alone or in a combination of the preferred features, in an improved enhancing effect for the actual active cooling substance 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate.
  • Preferred diols or triols for the cooling mixture as component (b) or as part of component (b) are 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-octanediol, 1,2-nonanediol, 1,2-decanediol, 1,2-dodecanediol and glycerol.
  • component (b) in the cooling mixture comprises or consists of n-1,2-pentanediol.
  • the cooling mixture according to the invention comprises n-1,2-pentanediol, it is preferred if the ratio between the amount of substance of 5-methyl-2-(propane-2-yl)cyclohexy-N-ethyloxamate and the amount of substance of n-1,2-pentanediol is 1:20 to 1:0.1, preferably 1:10 to 1:0.5 and particularly preferably 1:5 to 1:1.
  • n-1,2-pentanediol also as pentylene glycol
  • corresponding ratios are to be regarded as especially economical with regard to their cost-benefit factor.
  • a cooling mixture according to the invention which as a further component comprises a compound having an antagonistic effect on the heat receptors of the skin or of mucous membranes and thus reduces the sensation of heat.
  • Trans-4-tert.-butylcyclohexanol is preferably used as such a compound.
  • these compounds and in particular trans-4-tert.-butylcyclohexanol, are used in a quantity ratio of substances relative to the sum of diols and triols of 100:1 to 1:1000, more preferably of 10:1 to 1:100 and particularly preferably of 1:1 to 1:10.
  • a cooling mixture according to the invention comprises in addition to the component a) (cooling substance as described above) and component b) (polyol) a further enhancing substance for the cooling effect of component a)
  • This further enhancing substance is preferably one or more compounds selected from
  • one or more silicons (group B) are selected from the group consisting of:
  • Acefylline Methylsilanol Mannuronate Acetylmethionyl Methylsilanol Elastinate Acrylates/Behenyl, Acrylate/Dimethicone Methacrylate Copolymer, Acrylates/Behenyl Methacrylate/Dimethicone Methacrylate Copolymer, Acrylates/Bis-Hydroxypropyl Dimethicone Crosspolymer, Acrylates/Dimethicone Copolymer, Acrylates/Dimethicone Methacrylate/Ethylhexyl Acrylate Copolymer, Acrylates/Dimethiconol Acrylate Copolymer, Acrylates/Ethylhexyl Acrylate/Dimethicone Methacrylate Copolymer, Acrylates/Octylacrylamide/Diphenyl Amodimethicone Copolymer, Acrylates/Polytrimethylsiloxymethacrylate Cop
  • silicones to be contained in the mixture according to the inventions are Dimethicone, Cyclomethicone, Phenyl Trimethicone, Cyclohexasiloxane and Cyclopentasiloxane.
  • one or more terpenes are selected from the group consisting of:
  • Acyclic terpene alcohols such as for example citronellol; geraniol; nerol; linalool; lavandulol; nerolidol; farnesol; tetrahydrolinalool; tetrahydrogeraniol; 2,6-dimethyl-7-octen-2-ol; 2,6-dimethyloctan-2-ol; 2-methyl-6-methylene-7-octen-2-ol; 2,6-dimethyl-5,7-octadien-2-ol; 2,6-dimethyl-3,5-octadien-2-ol; 3,7-dimethyl-4,6-octadien-3-ol; 3,7-dimethyl-1,5,7-octatrien-3-ol; 2,6-dimethyl-2,5,7-octatrien-1-ol; and formates, acetates, propionates, isobutyrates, butyrates, is
  • one or more terpenes are selected from the group consisting of menthol, menthon, carvone, cineol, isopulegol, alpha-terpineol and limonene.
  • musk-compounds (group D) it is preferred according to the invention that one or more compounds are selected from the group consisting of compounds as listed in the following table A:
  • one or compounds of group D are selected from the group consisting of: 8-Cyclohexadecen-1-one, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethyl-cyclopenta[g]-2-benzopyran, Cyclohexadecanone, 15-Pentadec-(11/12)-enolid and Oxacyclohexadecan-2-one.
  • one or more abrasives are selected from the group consisting of:
  • one or more abrasives are selected from the group consisting of Silica, Calcium Carbonate, Calcium Phosphate, Calcium Pyrophosphate, Dicalcium phosphate and Tin Oxide.
  • one or more tensides are selected from the group consisting of:
  • Almondamidopropylamine Oxide Almondamidopropyl Betaine, Aminopropyl Laurylglutamine, Ammonium C12-15 Alkyl Sulfate, Ammonium C12-16 Alkyl Sulfate, Ammonium Capryleth Sulfate, Ammonium Cocomonoglyceride Sulfate, Ammonium Coco-Sulfate, Ammonium Cocoyl Isethionate, Ammonium Cocoyl Sarcosinate, Ammonium C12-15 Pareth Sulfate, Ammonium C9-10 Perfluoroalkylsulfonate, Ammonium Dinonyl Sulfosuccinate, Ammonium Dodecylbenzenesulfonate, Ammonium Isostearate, Ammonium Laureth-6 Carboxylate, Ammonium Laureth-8 Carboxylate, Ammonium Laureth Sulfate, Ammonium Laureth-5 Sulfate, Ammonium Laureth-7 Sulf
  • one or more compounds are selected from the group consisting of Sodium Laureth Sulfate, Cocamidopropyl Betaine, Sodium Cocoamphoacetate, CocoGlucoside and Ammonium Lauryl Sulfosuccinate.
  • Very good enhancement effects for the cooling sensation can be attained if there are certain ratios (by weight) from the cooling substance to the sum of the compounds of groups B, C, D, E or F.
  • the ratios in the above table B refer to all compounds of a specific group as a sum (e.g. all tensides according to group F). According to the invention it is further preferred if there are compounds of more than one of the groups B-F contained in the mixture according to the invention that for two, three, four or all of these groups the preferred, the more preferred or the most preferred ratios are set in the mixture.
  • Part of the invention is also a cosmetic composition comprising a cooling mixture according to the invention.
  • Also part of the invention is a sanitary article comprising a cooling mixture according to the invention.
  • Preferred cosmetic compositions are hair care products and skin care products
  • preferred sanitary articles are sanitary towels, tampons and nappies, in particular baby nappies.
  • the proportion of 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate in the overall composition is in the range of 0.001 to 20, preferably of 0.01 to 10 and especially of 0.1 to 5% by wt. respectively in relation to the overall weight of the cosmetic composition.
  • the proportion of 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate in the overall composition is in the range of 0.000001 to 20, preferably of 0.0001 to 10 and especially of 0.001 to 5% by wt. respectively in relation to the overall weight of the sanitary article.
  • the amount of cooling substance is 0.01-3 wt.-% and/or the amount of polyols of group A is 0.1-50 wt.-%, wherein each wt.-% is applied to the total weight of the cosmetic composition or the sanitary article.
  • the mixture according to the invention comprises compounds of one or more of groups B-F it is preferred that the compounds of group B (silicone oil) all together are present in an amount of 1-50 wt.-%, the compounds of the group C (terpenes) and/or D (musk) all together are present in an amount of 0.01-5 wt.-%, the compound of group E (abrasives) all together are present in an amount 0.1-35 wt.-% and the compounds of group F (tensides) all together are present in an amount of 0.1-30 wt.-%, wherein each wt.-% is applied to the total weight of the cosmetic composition or the sanitary article.
  • compositions according to the invention are a cooling skin or hair care product or cleansing agent.
  • Preferred skin or hair cleansing compositions are soaps having a liquid to gel type consistency, in particular transparent soaps, luxurious soaps, deodorant soaps, cream soaps, baby soaps, skin protection soaps, abrasive soaps and syndets, pasty soaps, soft soaps, washing pastes, peeling soaps, liquid wash, shower and bath preparations such as wash lotions, shower baths and shower gels, foam baths, oil baths and scrub preparations, shaving foams, lotions and creams.
  • this is a shower gel, a shampoo formulation or a bath preparation.
  • Such compositions according to the invention contain at least one cooling mixture according to the invention as well as usually anionic surfactants as primary surfactants and amphoteric and/or non-ionic surfactants as co-surfactants.
  • Further suitable active substances and/or auxiliary agents are generally selected from lipids, perfume oils, colorants, organic acids, preservatives and antioxidants as well as from thickeners/gel formers, skin conditioners and moisture retainers.
  • Suitable skin cosmetic compositions are for example toners, face masks, deodorants and other cosmetic lotions, compositions for the use in decorative cosmetics comprise for example blemish sticks, studio pigments, mascara and eye shadows, lipsticks, eye liner pens, eyeliner, rouges, powder and eyebrow pencils.
  • compositions according to the invention may be used in nose strips for pore cleaning, in anti-acne products, repellents, shaving products, after- and pre-shave care products, after-sun care products, hair removing agents, hand cleaning products, hair dyes, intimate hygiene products, foot care products as well as in baby care products.
  • the skin care products according to the invention are preferably W/O or O/W skin creams, day and night creams, eye creams, face creams, anti wrinkle creams, sun protection creams, moisture retention creams, after shave, bleaching creams, self-tanning creams, vitamin creams, skin lotions, care lotions and moisture retention lotions.
  • compositions according to the invention may be applied in a form suitable for skin care, such as for example as a cream, foam, gel, stick, mousse, milk, spray (pump spray or a spray containing a blowing agent) or as a lotion.
  • a form suitable for skin care such as for example as a cream, foam, gel, stick, mousse, milk, spray (pump spray or a spray containing a blowing agent) or as a lotion.
  • compositions according to the invention may contain also further active substances and auxiliary agents that are in customary use in skin cosmetics, in particular as described above, These include preferably emulsifiers, preservatives, perfume oils, active cosmetic substances such as phytantriol, vitamins A, E and C, retinol, bisabolol, panthenol, sun screen compositions, bleaching products, dyestuffs, toning agents, tanning agents, collagen, enzymes, protein hydrolysate, stabilizing agents, pH regulators, dyestuffs, salts, thickeners, gel formers, consistency agents, silicones, moisture retaining agents, re-moisturizing agents and further customary additives.
  • active cosmetic substances such as phytantriol
  • vitamins A, E and C retinol, bisabolol, panthenol, sun screen compositions
  • bleaching products dyestuffs, toning agents, tanning agents, collagen, enzymes, protein hydrolysate, stabilizing agents, pH regulators, dye
  • Preferred oil and fat components of the skin cosmetic compositions according to the invention are the above-mentioned mineral and synthetic oils such as for example paraffins, silicone oils and aliphatic hydrocarbons having more than 8 carbon atoms, animal and vegetable oils such as for example sunflower oil, coconut oil, avocado oil, olive oil, lanolin or waxes, fatty acids, fatty acid esters such as for example triglycerides of C6-C30 fatty acids, wax ester such as for example jojoba oil, fatty alcohols, vaseline, hydrogenated lanolin and acetylated lanolin as well as mixtures thereof.
  • mineral and synthetic oils such as for example paraffins, silicone oils and aliphatic hydrocarbons having more than 8 carbon atoms
  • animal and vegetable oils such as for example sunflower oil, coconut oil, avocado oil, olive oil, lanolin or waxes, fatty acids, fatty acid esters such as for example triglycerides of C6-C30 fatty acids, wax ester such as for example
  • the skin cosmetic compositions according to the invention may additionally also contain conditioning substances on the basis of silicone compounds.
  • Suitable silicone compounds are in particular polyalkyl siloxanes, polyaryl siloxanes, polyarylalkyl siloxanes, polyether siloxanes or silicone resins.
  • compositions according to the invention are carried out according to customary methods as known by a person skilled in the art.
  • the active substances may be mixed or diluted with a suitable auxiliary agent (excipient).
  • Excipients may be solid, semi-solid or liquid materials which may be used as a vehicle, carrier or medium for the active substances.
  • the admixture of further auxiliary agents may, if desired, be carried out in a manner known to a person skilled in the art.
  • polymers and dispersions are suitable, as auxiliary agents in pharmacy, preferably as or in (a) coating agent(s) or as (a) binder(s) for solid dosage forms. They may also be used as tablet coating agents and tablet binding agents.
  • the cosmetic compositions according to the invention are present in the form of emulsions, in particular as water-in-oil (W/O) or oil-in-water (O/W) emulsions.
  • W/O water-in-oil
  • O/W oil-in-water
  • emulsifier-free formulations such as hydrodispersions, hydrogels or a Pickering emulsion are advantageous embodiments.
  • the preparation of emulsions is carried out according to known methods.
  • the emulsions contain as a rule usual components such as fatty alcohols, fatty acid esters and in particular fatty acid triglycerides, fatty acids, lanolin and derivatives thereof, natural or synthetic oils or waxes and emulsifiers in the presence of water.
  • fatty alcohols such as fatty alcohols, fatty acid esters and in particular fatty acid triglycerides, fatty acids, lanolin and derivatives thereof, natural or synthetic oils or waxes and emulsifiers in the presence of water.
  • a suitable emulsion as a W/O emulsion for example for a skin cream etc. generally includes an aqueous phase which is emulsified by means of a suitable emulsifier system in an oil or fat phase.
  • a polyelectrolyte complex is used for providing the aqueous phase.
  • Preferred fatty components which may be included in the fat phase of the emulsions are: hydrocarbon oils such as paraffin oil, purcellin oil, perhydrosqualene and solutions of microcrystalline waxes in these oils; animal or vegetable oils such as sweet almond oil, avocado oil, calophyllum oil, lanolin and derivates thereof, castor oil, sesame oil, olive oil, jojoba oil, Karite oil, hoplostethus oil, mineral oils having a distillation starting point under atmospheric pressure at approx. 250° C. and a distillation end point at 410° C., such as for example vaseline oil, esters of saturated or unsaturated fatty acids such as alkyl myristate, e.g.
  • hydrocarbon oils such as paraffin oil, purcellin oil, perhydrosqualene and solutions of microcrystalline waxes in these oils
  • animal or vegetable oils such as sweet almond oil, avocado oil, calophyllum oil, lanolin and derivates thereof, castor oil, sesam
  • the fat phase may contain soluble silicone oils such as dimethyl polysiloxan, methylphenyl polysiloxane and the silicone glycol copolymer, fatty acids and fatty alcohols also in other oils.
  • soluble silicone oils such as dimethyl polysiloxan, methylphenyl polysiloxane and the silicone glycol copolymer, fatty acids and fatty alcohols also in other oils.
  • waxes may be used, such as for example carnauba wax, candililla wax, beeswax, microcrystalline wax, Ozokerit wax and Ca, Mg and Al oleates, myristates, linoleates and stearates.
  • a composition according to the invention may be present as an O/W emulsion.
  • Such an emulsion usually contains an oil phase, emulsifiers which stabilize the oil phase in the water phase, and an aqueous phase which is usually present in a thickened condition.
  • emulsifiers O/W emulsifiers such as polyglycerin ester, sorbitan ester or partially esterified glycerides are considered.
  • compositions according to the invention may be a shower gel, a shampoo formulation or a bath preparation.
  • Such formulations contain at least one cooling mixture according to the invention as well as usually anionic surfactants as primary surfactants and amphoteric and/or non-ionic surfactants as co-surfactants.
  • Further suitable active substances and/or auxiliary agents are generally selected from lipids, perfume oils, dyestuffs, organic acids, preservatives and antioxidants as well as from thickeners/gel formers, skin conditioners and moisture retention agents.
  • Suitable anionic surfactants are for example alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, alkyl aryl sulfonates, alkyl succinates, alkyl sulfosuccinates, N-alkoyl sarcosinates, acyl taurates, acyl isothionates, alkyl phosphates, alkyl ether phosphates, alkyl ether carboxylates, alpha-olefin sulfonates, in particular alkaline and earth alkaline metal salts, e.g. sodium, potassium, magnesium, calcium as well as ammonium and triethanolamine salts.
  • the alkyl ether sulfates, alkyl ether phosphates and alkyl ether carboxylates may contain 1 to 10 ethylene oxide or propylene oxide units, preferably 1 to 3 ethylene oxide units in a molecule.
  • sodium lauryl sulfate ammonium lauryl sulfate, sodium lauryl ether sulfate, ammonium lauryl ether sulfate, sodium lauryl sarcosinate, sodium oleyl succinate, ammonium lauryl sulfosuccinate, sodium dodecyl benzol sulfonate, triethanolamine dodecyl benzol sulfonate.
  • Suitable amphoteric surfactants are for example alkyl betaine, alkyl amido propyle betaine, alkyl sulfobetaine, alkyl glycinate, alkyl carboxy glycinates, alkyl amphoacetates or propionates, alkyl amphodiacetates or dipropionates.
  • coco dimethyl sulfopropyl betaine lauryl betaine, cocamido propyl betaine or sodium cocoamphopropionate may be used.
  • non-ionic surfactants for example the reaction products of aliphatic alcohols or alkyl phenols having 6 to 20 C atoms in the alkyl chain, which may be linear or branched, with ethylene oxide and/or propylene oxide are suitable.
  • the amount of alkylene oxide is approx. 6 to 60 moles per mole of alcohol.
  • alkyl amine oxides, mono- or dialkyl alkanolamides, fatty acid esters of polyethylene glykolen, ethoxylated fatty acid amides, alkyl polyglycosides or sorbitan ether ester are suitable.
  • wash, shower and bath compositions according to the invention may contain usual cationic surfactants such as for example quaternary ammonium compounds, for example cetyl trimethyl ammonium chloride.
  • shower gel/shampoo formulations may contain a thickener such as e.g. common salt, PEG-55, propylene glycol oleate, PEG-120 methyl lucose ioleate and others as well as preservatives, further active substances and auxiliary agents and water.
  • a thickener such as e.g. common salt, PEG-55, propylene glycol oleate, PEG-120 methyl lucose ioleate and others as well as preservatives, further active substances and auxiliary agents and water.
  • Cosmetic compositions according to the invention in terms of a skin care product may also be sun protection compositions. It will be clear to a person skilled in the art that sun protection compositions may also be use for purposes other than skin care. In terms of the present application, however, sun protection compositions are understood to be skin care products (in the broadest possible sense). Sun protection compositions according to the invention comprise a cooling mixture according to the invention.
  • these compositions contain at least one UVA filter and/or at least one UVB filter and/or at least one anorganic pigment.
  • the composition may here be present in different forms, such as are usually used for example for sun protection compositions. Thus, they may form for example a solution, an emulsion of the water-in-oil (W/O) or of the oil-in-water (O/W) type, or a multiple emulsion, for example of the water-in-oil-in-water (W/O/W) type, a gel, a hdrodispersion, a solid stick or an aerosol.
  • the sun protection compositions according to the invention may particularly advantageously be combined with substances which absorb or reflect UV radiation, wherein the overall amount of the filter substances is 0.01% by wt. to 40% by wt., preferably 0.1% to 10% by wt., in particular 1.0 to 5.0% by wt. in relation to the overall weight of the compositions, in order to provide cosmetic compositions which protect the hair or the skin from ultraviolet radiation.
  • these compositions contain at least one UVA filter and/or at least one UVB filter and/or at least one anorganic pigment, so that a sun protection factor of at least ⁇ 2 (preferably ⁇ 5) is achieved.
  • These compositions according to the invention may be present here in different forms as are customarily used for example for sun protection compositions.
  • they may constitute for example a solution, an emulsion of the water-in-oil (W/O) type or of the oil-in-water (O/W) type or a multiple emulsion, for example of the water-in-oil-in-water (W/O/W) type, a gel, a hydrodispersion, a solid stick or an aerosol.
  • W/O water-in-oil
  • O/W oil-in-water
  • a multiple emulsion for example of the water-in-oil-in-water (W/O/W) type, a gel, a hydrodispersion, a solid stick or an aerosol.
  • UVB filters such as for example:
  • Broadband filters such as for example:
  • UVA filters such as for example:
  • UV absorbers particularly suitable for a combination are
  • Advantageous anorganic light protection pigments are finely dispersed metal oxides and metal salts, for examples titanium dioxides, zink oxide (ZnO), iron oxides (e.g. Fe 2 O 3 ), aluminum oxide (Al 2 O 3 ); cerium oxides (e.g. Ce 2 O 3 ), manganese oxides (e.g. MnO), zirconium oxide (ZrO 2 ), silicon oxide (SiO 2 ), mixed oxides of the corresponding metals as well as mixtures of such oxides, barium sulfate and zink stearate. Particularly preferably these are pigments on the basis of TiO 2 or zink oxide.
  • the particles have an average diameter of less than 100 nm, preferably between 5 and 50 nm and particularly preferably between 15 and 30 nm. They may have a spherical shape, however, also particles having an ellipsoidal shape or a shape deviating from the spherical shape in other ways may be used.
  • the pigments may also be present in a form in which they are surface treated, i.e. hydrophilized or hydrophobized. Typical examples include coated titanium dioxides such as for example titanium dioxide T 805 (Degussa) or Eusolex® T2000 (Merck) or coated zink oxide such as for example zinc oxide NDM.
  • hydrophobic coating agents above all silicones and here especially trialkoxy octysilane or simethicone may be considered.
  • micro and nano pigments are preferably used.
  • zink micro or nano pigments are used.
  • the overall amount of anorganic pigments, in particular of hydrophobic anorganic micropigments in the ready-made compositions according to the invention is advantageously in the range of 0.1 to 30% by wt., preferably 0.1 to 10.0, in particular 0.5 to 6.0% by wt. in relation to the overall weight of the composition.
  • compositions according to the invention are a hair care product (hair conditioning product).
  • the hair care products according to the invention are present in the form of a styling foam, hair mousse, hair gel, shampoo, hair spray, hair foam, hair end fluid, equalizer for perms, hair dyeing and bleaching agent or “hot oil treatment”.
  • the hair cosmetic compositions may be applied as (aerosol) spray, (aerosol) foam, gel, gel spray, cream, lotion or wax.
  • Hair sprays include here both aerosol sprays and pump sprays without propellant gas.
  • Hair foams include both aerosol foams and pump foams without propellant gas.
  • Hair sprays and hair foams preferably include predominantly or exclusively water soluble or water dispersible components. If the compounds used in the hair sprays and hair foams according to the invention are dispersible in water, they may be applied in the form of aqueous micro-dispersions having particle diameters of usually 1 to 350 nm, preferably 1 to 250 nm.
  • the hair care products according to the invention may contain alcohol, the term alcohol is to be understood to encompass all of the alcohols that are customary in cosmetics, e.g. ethanol, isopropanol, n-propanol.
  • they may contain all of the styling and conditioner polymers known in the cosmetics industry, which may be used in combination with the cooling mixtures according to the invention, if very specific properties are to be achieved.
  • compositions according to the invention may additionally also contain conditioning substances on the basis of silicone compounds.
  • Suitable silicone compounds include for example polyalkyl siloxanes, polyaryl siloxanes, polyaryl alkyl siloxanes, polyether siloxanes, silicone resines or dimethicon copolyols (CTFA) and aminofunctional silicone compounds such as amodimethicone (CTFA).
  • the hair care products according to the invention may contain blowing agents (propellants).
  • Blowing agents are the blowing agents that are customarily used for hair sprays or aerosol foams. Preferred are mixtures of propane/butane, pentane, dimethyl ether, 1,1-difluorethane (HFC-152 a), carbon dioxide, nitrogen or pressurized air.
  • emulsifiers any of the emulsifiers customarily used in hair foams may be used. Suitable emulsifiers may be non-ionic, cationic or anionic or amphoteric.
  • non-ionic emulsifiers examples include laureths, e.g. Laureth-4, ceteths, e.g. Cetheth-1, polyethylene glycol cetyl ether, ceteareths, e.g. Cetheareth-25, polyglycol fatty acid glycerides, hydroxylated lecithine, lactyl ester of fatty acids, alkyl polyglycoside.
  • cationic emulsifiers are cetyl dimethyl-2-hydroxy ethyl ammonium dihydrogen phosphate, cetyl trimonium chloride, cetyl trimmonium bromide, cocotrimonium methyl sulfate, Quaternium-1 to x (INCI).
  • Anionic emulsifiers may for example be selected from the group consisting of alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, alkyl aryl sulfonates, alkyl succinates, alkyl sulfosuccinates, N-alkoyl sarcosinates, acyl taurates, acyl isethionates, alkyl phosphates, alkyl ether phosphates, alkyl ether carboxylates, alpha-olefin sulfonates, in particular alkaline and earth alkaline metal salts, e.g.
  • alkyl ether sulfates, alkyl ether phosphates and alkyl ether carboxylates may have between 1 and 10 ethylene oxide or propylene oxide units, preferably 1 to 3 ethylene oxide units in a molecule.
  • gel formers may be of advantage, in order to achieve specific rheological or other application-specific properties of the gels.
  • Any of the gel formers customarily used in the cosmetics industry may be used as gel formers. These include slightly cross-linked polyacrylic acid, for example carbomer (INCI), cellulose derivatives, e.g. hydroxypropyl cellulose, hydroxyethyl cellulose, cationically modified celluloses, polysaccharides, e.g.
  • xanthan gum caprylic/capric triglyceride, sodium-acrylate copolymers
  • any of the anionic, neutral, amphoteric or cationic surfactants customarily used in shampoos may be used in the hair care products according to the invention embodied as shampoo formulations.
  • Suitable anionic surfactants include for example alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, alkyl aryl sulfonates, alkyl succinates, alkyl sulfosuccinates, N-alkoyl sarcosinates, acyl taurates, acyl isothionates, alkyl phosphates, alkyl ether phosphates, alkyl ether carboxylates, alpha-olefin sulfonates, in particular the alkaline and earth alkaline metal salts, e.g. sodium, potassium, magnesium, calcium as well as ammonium and triethanol amine salts.
  • the alkyl ether sulfates, alkyl ether phosphates and alkyl ether carboxylates may have between 1 and 10 ethylene oxide or propylene oxide units, preferably 1 to 3 ethylene oxide units in a molecule.
  • Suitable are for example sodium lauryl sulfate, ammonium lauryl sulfate, sodium lauryl ether sulfate, ammonium lauryl ether sulfate, sodium lauroyl sarcosinate, sodium oleyl succinate, ammonium lauryl sulfosuccinate, sodium dodecyl benzol sulfonate, triethanolamino dodecyl benzol sulfonate.
  • Suitable amphoteric surfactants include for example alkyl betaine, alkylamido propyl betaine, alkyl sulfobetaine, alkyl glycinates, alkyl carboxy glycinates, alkylamphoacetates or propionates, alkyl amphodiacetates or dipropionates.
  • cocodimethyl sulfopropyl betaine lauryl betaine, cocamidopropyl betaine or sodium cocamphopropionate may be used.
  • non-ionic surfactants for example the reaction products of aliphatic alcohols or alkyl phenols having 6 to 20 C atoms in the alkyl chain which may be linear or branched, with ethylene oxide and/or propylene oxide, are suitable.
  • the amount of alkylene oxide is approx. 6 to 60 moles per mole of alcohol.
  • alkyl amine oxides, mono- or dialkyl alkanol amides, fatty acid esters of polyethylene glycolene, alkyl polyglycosides or sorbitan ether ester are suitable.
  • the shampoo formulations according to the invention may contain usual cationic surfactants such as for example quaternary ammonium compounds, for example cetyl trimethyl ammonium chloride.
  • usual conditioners may be used in the shampoo formulations in combination with the active substances according to the invention.
  • cationic polymers with the designation polyquaternium according to INCI, in particular copolymers of vinyl pyrrolidon/N-vinyl imidazolium salts (Luviquat FC, Luviquat HM, Luviquat MS, Luviquat Care), copolymers of N-vinyl pyrrolidon/dimethyl amino ethyl methacrylate, quaternized with diethyl sulfate (Luviquat D PQ 11), copolymers of N-vinyl caprolactam/N-vinyl pyrrolidon/N-vinyl imidazolium salts (Luviquat D Hold), cationic cellulose derivatives (Polyquaternium-4 and 10), acrylamide copolymers (Polyquaternium-7).
  • protein hydrolysates may be used as well as conditioning substances on the basis of silicone compounds, for example polyalkyl siloxanes, polyaryl siloxanes, polyaryl alkyl siloxanes, polyether siloxanes or silicone resins.
  • silicone compounds include dimethicon copolyols (CTFA) and aminofunctional silicone compounds such as amodimethicone (CTFA).
  • CTFA dimethicon copolyols
  • cationic guar derivatives such as guar hydroxylpropyl trimonium chloride (INCI) may be used.
  • plasters which develop a cooling effect on the skin or on mucous membranes are also regarded as skin care products.
  • corresponding plasters may also be used for purposes other than skin care. This is explicitly included in the scope of the invention.
  • Plasters according to the invention used as skin care products comprise a cooling mixture according to the invention. They may be designed in any desired way, for example according to the matrix system, the membrane system or the non-woven system (Drug Dev. Ind. Pharm. 14 (1988), 183-209; Drug Dev. Ind. Pharm. 13 (1987), 589-651; Drugs of Today 23 (1987), 625-646).
  • the matrix system consists of 3 parts: the flexible backing film, the adhesive matrix containing the cooling mixture according to the invention and a peel-off film. If a non-adhesive matrix is used, an edge region of the backing film must be provided with an adhesive, in order to ensure adhesion to the skin.
  • a membrane system comprises at least 5 parts: a flexible backing film, a reservoir with a dissolved or suspended cooling mixture according to the invention, a membrane for controlling the release of the active substance, an adhesive layer deposited on the membrane and a peel-off film.
  • the layer comprising the cooling mixture according to the invention consists of an absorbent non-woven fabric or a porous polymer which is impregnated with an active substance solution or suspension.
  • This layer which is firmly connected to the backing film, is covered with a peel-off film. The edge of the backing film is provided with an adhesive for application onto the skin.
  • the auxiliary agents to be used are the ones that are customary for the production of plasters.
  • the adhesive agent as a rule a polymer having a glass temperature between ⁇ 70 and ⁇ 10, in particular ⁇ 55 and ⁇ 25° C., as well as a carrier film which is coated with this adhesive agent, and the active substance, usually emulsifiers, thickeners as well as materials for controlling the release of the active substance as well as other auxiliary agents are added.
  • the adhesive polymers having the above-mentioned low glass temperatures are known for example from U.S. Pat. Nos. 2,973,282 and 3,307,544.
  • the self-adhesive strips and films should adhere to the human skin merely on contact, however, the cohesion of the adhesive layer and the adhesion thereof on the carrier film should be greater than the adhesion on the skin, so that they may be peeled off as far as possible without leaving any residues.
  • the polymers may be crosslinked by adding minor amounts of comonomers having 2 or more copolymerizable double bonds, i.e. for example of diacrylates such as butane diol diacrylate, or divinyl compounds such as divinyl benzene, or by adding other crosslinkers, for example melamine formaldehyde resins.
  • diacrylates such as butane diol diacrylate
  • divinyl compounds such as divinyl benzene
  • crosslinkers for example melamine formaldehyde resins.
  • sticky polymers also polyisobutylenes and polyvinyl ether with different molecular masses may be used.
  • the particle sizes of the dispersions should be between 50 and 500 nm, in particular between 50 and 200 nm.
  • the particle size and the degree of crosslinking may be adjusted in a known manner as a function of the polymerization conditions and the comonomers. Smaller particle sizes and a higher degree of crosslinking may result in an increase of the release of active substance.
  • Matrix plasters may be produced in the usual manner by dissolving or finely dispersing the active substance in a suitable polymer solution and subsequently extracting this self-adhesive mass containing the active substance into a film by using roller or doctor blade deposition methods. In some cases it may be expedient to dissolve or extremely finely disperse the active substance prior to adding it to the polymer solution in an organic solvent such as for example ethanol or acetone. In this way, an improved distribution of the active substance in the polymer may be achieved.
  • the plasters may also be produced in accordance with German patent application no P 38 07 283.1 by working in the cooling mixture in a finely pulverized form, e.g. bound to a carrier (particle size lower than 200, in particular lower than 50 ⁇ m) in the aqueous latex dispersion or by dispersing or dissolving it in an aqueous emulsifier solution and admixing this mixture to the aqueous latex dispersion at a temperature of 10 to 80, in particular of 30 to 70° C.
  • a carrier particle size lower than 200, in particular lower than 50 ⁇ m
  • the cooling mixture according to the invention is provided, the emulsifier and water are added and then mixed with the polymer dispersion.
  • the cooling mixture thus obtained as a dispersion is, if required, provided with further auxiliary agents and is, as mentioned, extracted in a manner per se known into a film on a backing film and is dried.
  • the drying temperature may here be between room temperature and 100° C., with an optimum between the targeted rapid drying and ensuring that any blistering in the film and thermal loading of the active ingredient are avoided generally being in the order of 35 to 45° C.
  • the resulting films have a thickness of 10 to 800, preferably 50 to 300 um.
  • Film production may be carried out in a continuous or a batchwise process. The deposition process may be repeated several times, until the film has reached the desired thickness.
  • the sticky polymer layer contains components a) and b) of the cooling mixture according to the invention in an accumulated concentration in the range of 1 to 40, in particular 5 to 25% by wt. in relation to the overall mass of the sticky polymer layer. The same concentration also applies to the reservoir liquid in the case of the membrane system (in relation to the overall mass of the reservoir liquid) and for the cooling mixture solution or dispersion used to impregnate the non-woven fabric or the porous polymer in the case of the non-woven system (in relation to the overall mass of the solution).
  • the surfactants customarily used for this are used, such as the sodium salt of longer-chained fatty acids and the sulfuric acid semi-ester of a (if required oxyethylated) fatty alcohol as examples of anionic surfactants as well as polyethoxylated alkyl phenols and longer-chained fatty alcohols (e.g. hexadecan-(1)-ol) and glycerine partial fatty acid esters as examples of non-ionic surfactants and co-emulsifiers.
  • anionic surfactants e.g. hexadecan-(1)-ol
  • polyethoxylated alkyl phenols and longer-chained fatty alcohols e.g. hexadecan-(1)-ol
  • glycerine partial fatty acid esters examples of non-ionic surfactants and co-emulsifiers.
  • the desired viscosity of the mass ready to be extracted may be adjusted for example using polyacrylic acids or cellulose derivatives.
  • crosslinkers which improve cohesion and thus the adhesive properties of the films, for example melamine formaldehyde resins may be used.
  • swelling agents such as polyvinyl pyrrolidone, cellulose derivatives or polyacrylates may be used, since the film can absorb more water, so that the diffusion resistance is reduced.
  • hydrophilic plasticizers such as glycerine, 1,2-propanediol of the polyethylene glycols and lipophilic plasticizers such as triacetine, dibutyl phthalate or isopropyl myristate.
  • Matrix plasters usually provide a first order release of active substance.
  • fillers which adsorb the active substance such as aerosil, microcrystalline cellulose or lactose, an approximately zero order release will result.
  • the backing film which is dried onto the self-adhesive mass containing the cooling mixture is preferably essentially impermeable both to the active substance and to the water vapor. It may consist for example of an aluminum-plastic composite film, a metalized plastic film, a plastic film which, towards the side of the active substance, is provided with a barrier layer for example of polyvinylidene chloride, or of a simple plastic film, for example a polyester film.
  • the plasters according to the invention which are designed according to the membrane system, are also manufactured in the usual manner (e.g. EP 0 186 071 A2, U.S. Pat. No. 4,262,003).
  • the production of the plasters designed according to the non-woven system is carried out by impregnating non-woven fabrics or porous polymers attached to the backing film with a solution or a dispersion of the cooling mixture in a hydrophilic or lipophilic solvent or solvent mix. Subsequently, the impermeable peel-off film is deposited.
  • cooling mixtures according to the invention may be combined with further known active substances, in particular with those that have a benefit effect in cosmetic (or care) compositions.
  • Cosmetic/care compositions according to the invention may also contain anti-inflammatory active substances and/or active substances that alleviate reddening and/or itching.
  • any of the anti-inflammatory active substance and/or any of the active substances for alleviating reddening and/or itching may be used that are suitable or customarily used for cosmetic and/or dermatological applications.
  • steroidal anti-inflammatory active substances of the corticosteroide type are used as anti-inflammatory active substances or as active substances for alleviating reddening and/or itching, such as hydrocortisone, hydrocortisone derivatives such as hydrocortisone-17-butyrat, dexamethasone, dexamethasone phosphate, methylprednisolone or cortisone, and this list may be extended by adding further steroidal anti-inflammatory agents. Also non-steroidal anti-inflammatory agents may be used.
  • oxicams such as Piroxicam or Tenoxicam
  • salicylates such as Aspirin, Disalcid, Solprin or Fendosal
  • acetic acid derivatives such as Diclofenac, Fenclofenac, Indomethacin, Sulindac, Tolmetin or Clindanac
  • fenamates such as Mefenamic, Meclofenamic, Flufenamic or Niflumic
  • propionic acid derivatives such as Ibuprofen, Naproxen, Benoxaprofen, or pyrazols such as Phenylbutazon, Oxyphenylbutazon, Febrazon or Azapropazon.
  • natural anti-inflammatory substances or substances for alleviating reddening and/or itching may be used.
  • plant extracts special highly effective plant extract fractions as well as active substances of high purity isolated from plant extracts.
  • extracts, fractions and active substances from camomile, Aloe vera, Commiphora species, Rubia species, willows, willow herbs, oats, Calendula , arnica, amber, honeysuckle, rosemary, melissa, ginger, Passiflora incarnata, Hamamelis, Pueraria, Dianthus or Echinacea as well as pure substances such as Bisabolol, Apigenin, Apigenin-7-glucosid, rosemarinic acid, boswellic acid, phytosterols, glycyrrhizic acid, Glabridin, Licochalkon A, gingerols and anthranilic acid amides such as in particular avenanthramides or dianthramides.
  • the composition can be used are plant extract
  • the amount of anti-irritants (one or more compounds) in the compositions is preferably 0.0001 to 20% by wt., particularly preferably 0.0001-10% by wt., in particular 0.001-5% by wt., in relation to the overall weight of the composition.
  • antiperspirant active substances may be used particularly advantageously with the compositions according to the invention.
  • antiperspirant active substances predominantly aluminum salts such as aluminum chloride, aluminum chlorhydrate, nitrate, sulfate, acetate etc. are used.
  • zink, magnesium and zirconium compounds may be advantageous.
  • aluminum salts and—to a somewhat lower degree—aluminum/zirconium salt combinations have essentially proven successful. What is worth mentioning apart from that are the partially neutralized and thus more skin-compatible, although not quite so effective aluminum hydroxychlorides.
  • protein precipitating substances such as formaldehyde, glutaraldehyde, natural and synthetic tannins as well as trichloroacetic acid which cause a superficial closure of the perspiratory glands
  • local anasthetics e.g. diluted solutions of e.g.
  • Lidokain, Prilokain or mixtures of such substances which eliminate the sympathetic supply of the perspiratory glands by blocking the peripheral nerve tracts, c) zeoliths of type X, A or Y, which besides reducing sweat secretion also have the function of adsorbing bad odors, and d) botulinus toxin (toxin of the bacteria Chlostridium botulinum) which is also used for the treatment of hyperhidrosis, an abnormally increased secretion of sweat, and the effect of which is based on an irreversible blockage of the release of the transmitter substance acetylchonine which is relevant for the secretion of sweat.
  • peptidic botulinus toxin analogs may be used in the compositions according to the invention.
  • Preferred sanitary articles in terms of the invention are wet wipes, sanitary towels, tampons and refreshing tissues containing a cooling mixture according to the invention.
  • the cooling mixtures according to the invention may also be present in any of the preferred, above-described forms.
  • the sanitary articles according to the invention may contain cosmetic compositions according to the invention, in particular in the above-described preferred variants.
  • the advantage of the method according to the invention is that the reduce amount of cooling substance can be used to achieve a given cooling sensation or an enhanced cooling effect an be achieved by using a given amount of cooling substance.
  • a further component of the invention is a method for producing a cooling mixture according to the invention or a cosmetic composition according to the invention or a sanitary article according to the invention, comprising the following steps:
  • cooling substance consisting of (i) 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate (formula I)
  • This method according to the invention to generates the mixtures, cosmetic compositions or sanitary articles having the benefits of the present invention. Accordingly it is preferred that further compounds (especially compounds of any one, two, three, four or all of groups B-F) are added in the method according to the invention.
  • the uses and methods according to the invention are made for none-therapeutic purposes. Especially it is preferred that the uses and methods according to the invention are made for cosmetic or non-medical care purposes only.
  • the aim of the human in vivo studies was to test the effect of the cooling mixture according to the invention in O/W formulations with regard to their cooling intensity. What was to be examined here was whether the cooling effect/cooling intensity of 5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate will be enhanced in the combination of active substances according to the invention.
  • Each individual test was carried out using 20 panelists under standardized conditions in a test institute. To this end, each test person spread two defined quantities of cream samples onto both cheeks at the same time. This half-side test allows a direct comparison of two samples, as a result of which the reproducibility of the results is markedly enhanced by comparison to a test wherein the test person has to keep cooling intensities in mind.
  • the data obtained during the studies was examined with regard to any significant differences between the two samples. To this end, the data was initially examined for standard normal distribution. Provided the data met the criteria of a standard normal distribution, a pairwise t test was carried out. Since the perception of the degree of coolness is different for each test person and the half-side test provides dependent data, the pairwise t test is to be used. Where no normal distribution of the values was found, significance was determined via a non-parametric Wilcoxon.
  • the formulations had the following compositions:
  • Phases A and C are heated separately to approx. 80° C.
  • Phase B is dispersed in phase A.
  • Phase C is added to phase AB and is subsequently emulsified under an Ultra Turrax Stirrer (3 min). Subsequently, phase D is added and neutralized. The emulsion is cold-stirred using a blade mixer, with the mixing rate being reduced as the temperature decreases.
  • Phase E is added at 45-50° C.
  • FIG. 1 shows a marked cooling effect of (1R,2S,5R)-5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyl oxamate (MEO).
  • the cooling effect is noticeable immediately upon application of the formulation.
  • the duration of the cooling effect which is more than 30 minutes, is strongly pronounced.
  • FIG. 2 shows the effect of a cooling mixture according to the invention (mixture A from Table 1), comprising (1R,2S,5R)-5-methyl-2-(propane-2-yl)cyclohexyl-N-ethyloxamate and n-1,2-pentanediol, compared to a mixture of an identical composition, wherein the n-1,2-pentanediol was replaced with water (mixture B from Table 1). It shows that the cooling effect of the cooling mixture according to the invention, which contains pentanediol, is evaluated as being stronger throughout. After two minutes or five minutes, the increase in cooling intensity by 1,2-pentanediol is also mathematically significant.
  • FIG. 1 is in particular used to show that MEO already has a cooling effect by itself, whereas FIG. 2 provides evidence for an increase of this cooling effect by the diol to be used according to the invention. Because of the measuring method (cheek tests with only two comparative values, respectively) two separate test series were required, which are shown up in the two separate figures.
  • Preparation mix phase A. Add phase B and stir until completely dissolved, adjust pH value to pH 7.0.
  • Preparation Mix phase A. Add phase B and stir until completely dissolved, adjust pH value to pH 7.0.
  • a cosmetic sun protection composition that contains a combination of at least a non-organic pigment and an organic UV filter.
  • Preparation Heat phases A and B separately to approx. 80° C. Mix phase B in with phase A and homogenize. Cool down to approx. 40° C. under stirring. Add phase C and homogenize again. Allow to cool down to room temperature under stirring.
  • Perfume oil 4.00 Pentylene glycol 1.00 (1R,2S,5R)-5-methyl-2-(propane-2-yl)cyclohexyl N-ethyloxamate 0.50 4-t Butylcyclohexanol 58.4 Aqua dem.
  • Preparation Heat phases A and B separately to approx. 80° C. Mix in phase B with phase A and homogenize. Cool down to approx. 40° C. under stirring, add phase C and homogenize again. Allow to cool down to room temperature under stirring.
  • Preparation Mix and dissolve the components of phase A. Adjust pH value to 6-7 using citric acid.
  • Preparation Mix and dissolve the components of phase A. Adjust the pH value to 6-7 using citric acid.
  • Preparation Mix and dissolve the components of phase A. Adjust the pH value to 6-7 using citric acid.
  • Preparation Mix and dissolve the components of phase A. Adjust the pH value to 6-7 using citric acid.
  • Preparation Mix and dissolve the components of phase A. Adjust the pH value to 6-7 using citric acid.
  • Preparation Mix and dissolve the components of phase A. Adjust the pH value to 6-7 using citric acid.
  • Preparation Heat the components of phases A and B separately to approx. 80° C. Mix phase B in with phase A whilst homogenizing. Cool down to approx. 40° C. under stirring, add phases C and D and re-homogenize for a short time. Cool down to room temperature under stirring.
  • Preparation Heat the components of phases A and B separately to approx. 80° C. Mix phase B in with phase A whilst homogenizing. Cool down to approx. 40° C. under stirring, add phases C and D and re-homogenize for a short time. Cool down to room temperature under stirring.
  • Perfume oil D 3.0 Polyquaternium-44 0.5 Cocotrimonium methosulfate 0.5 Ceteareth-25 2.0 Panthenol, Propylene glycol 4.0 Pentylene glycol 0.1 Disodium EDTA 1.0 (1R,2S,5R)-5-methyl-2-(propane-2-yl)cyclohexyl N ethyloxamate 60.7 Aqua dem.
  • Dissolve phase A Mix phase B in with phase A, work phase C into combined phases A and B.
  • Dissolve phase D mix into combined phases A, B and C and homogenize. Keep stirring for another 15 min.
  • Perfume oil D 3.0 Polyquaternium-44 0.5 Cocotrimonium methosulfate 0.5 Ceteareth-25 2.0 Panthenol, Propylene glycol 4.0 Pentylene glycol 0.1 Disodium EDTA 1.0 (1R,2S,5R)-5-methyl-2-(propane-2-yl)cyclohexyl N ethyloxamate 1.0 4-t-Butylcyclohexanol 59.7 Aqua dem.
  • Dissolve phase A Mix phase B in with phase A, work phase C into combined phases A and B.
  • Dissolve phase D mix into combined phases A, B and C and homogenize. Keep stirring for another 15 min.
  • Preparation Mix the components of phase A. Dissolve phase B, work into phase A and homogenize.
  • Preparation Mix the components of phase A. Dissolve phase B, work into phase A and homogenize.
  • Preparation Mix the components of phase A. Mix phase B into phase A under homogenization. Neutralize with phase C and homogenize again.
  • Preparation Mix the components of phase A. Mix phase B into phase A under homogenization. Neutralize with phase C and homogenize again.
  • Preparation Heat the components of phases A and B separately to approx. 80° C. Mix phase B in with phase A and homogenize. Heat phase C to approx. 80° C. into combined phases A and B under homogenization. Cool down to approx. 40° C. under stirring, add phase D and homogenize again.
  • Preparation Heat the components of phases A and B separately to approx. 80° C. Mix phase B in with phase A and homogenize. Heat phase C to approx. 80° C. into combined phases A and B under homogenization. Cool down to approx. 40° C. under stirring, add phase D and homogenize again.
  • Dragocide ® Liquid Phenoxy ethanol 0.5 0.8 0.8 0.8 0.8 Methyl paraben Ethyl paraben Butyl paraben Propyl paraben Isobutyl paraben Dragoderm ® Glycerin.
  • Triticum 2.0 2.0 2.0 Vulgare (Wheat) Gluten.
  • Water (Aqua) Dragosan W/O P Sorbitan Isostearate 8.0 Hydrogenated Castor Oil. Ceresin.
  • Allantoin Iso Adipat Diisopropyl Adipate 1.0 5.0 Isodragol ® Triisononanoin 1.0 Jojobaol Simmondsia 2.0 2.0 Chinensis (Jojoba) Seed Oil Keltrol CG RD Xanthan Gum 0.1 0.1 0.2 Lanette O Cetearyl Alcohol 3.0 2.0 3.0 3.5 Mineral oil Mineral Oil 8.0 Sodium chloride Sodium Chloride 1.0 2.0 Sodium hydroxide 10% Sodium Hydroxide 0.1 0.8 0.6 0.5 0.4 Lsg.
  • Neo Heliopan ® 303 Octocrylene 5.0 8.0 Neo Heliopan ® 357 Butylmethoxy 1.1 3.0 dibenzoyl methane Neo Heliopan ® HMS Homosalate 5.0 Neo Heliopan ® Hydro. Phenyl 3.0 8.0 25% Lsg. Neutralised benzimidazole using Biotive L-Arginin Sulfonic Acid Neo Heliopan ® AP. Disodium Phenyl 3.0 13.3 10% Lsg..
  • Rubus Idaeus (Raspberry) Leaf Extract Triethanolamin 99% Triethanolamine 0.4 0.3 Vitamin E Acetat Tocopherol Acetate 0.5 0.5 0.2 Water Water (Aqua) ad ad ad ad ad ad ad ad ad 100 ad 100 ad 100 ad 100 ad 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
  • the cooling effect as perceived by the test persons was enhanced in relation to comparable formulations which did not contain any C3-C12 alkanediols and alkanetriols. Provided the corresponding formulations also contained trans-4-tert. butylcyclohexanol, the cooling effect was even further enhanced compared to formulations without this compound.

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  • Birds (AREA)
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  • Thermotherapy And Cooling Therapy Devices (AREA)
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US13/704,037 2010-06-14 2010-10-27 Use of polyols for enhancing the cooling effect of a cooling substance and cooling mixtures having an enhanced cooling effect Abandoned US20130202543A1 (en)

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US9155714B2 (en) 2013-06-06 2015-10-13 Johnson & Johnson Consumer Inc. Compositions comprising an aromatic alcohol and a TRPV-1 antagonist, and uses thereof
DE102013112065A1 (de) * 2013-11-01 2015-05-07 Minasolve Germany Gmbh Stabile Lösungen mit physiologischem Kühlreagenz und deren Verwendung
WO2016090247A1 (en) * 2014-12-05 2016-06-09 Mary Kay Inc. Cosmetic compositions
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US10980721B2 (en) 2016-12-21 2021-04-20 Henkel Ag & Co. Kgaa Cosmetic product to prevent body odor with an improved long-term effect
US11072710B2 (en) * 2016-12-28 2021-07-27 Namics Corporation Surface-treated silica filler, and resin composition containing surface-treated silica filler
US20210212964A1 (en) * 2018-06-08 2021-07-15 Vivier Canada Inc. Sterile topical saline putrescine formulation and uses thereof
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CN109512802A (zh) * 2018-12-13 2019-03-26 广州润虹医药科技股份有限公司 一种退热贴及其制备方法
US12049584B2 (en) * 2019-03-18 2024-07-30 Sabine Zureikat Composition and method for producing the sensory stimulant
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WO2010149798A2 (en) 2010-12-29
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EP2394703A1 (de) 2011-12-14

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