WO2005025530A1 - Pulverförmiger zubereitungen, enthaltend 2,4,6-trianilino-p-(carbo-2'-ethylhexyl-1'-oxi)-1,3,5-triazin - Google Patents
Pulverförmiger zubereitungen, enthaltend 2,4,6-trianilino-p-(carbo-2'-ethylhexyl-1'-oxi)-1,3,5-triazin Download PDFInfo
- Publication number
- WO2005025530A1 WO2005025530A1 PCT/EP2004/010058 EP2004010058W WO2005025530A1 WO 2005025530 A1 WO2005025530 A1 WO 2005025530A1 EP 2004010058 W EP2004010058 W EP 2004010058W WO 2005025530 A1 WO2005025530 A1 WO 2005025530A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- triazine
- water
- acid
- disperse
- aqueous
- Prior art date
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- FIDRAVVQGKNYQK-UHFFFAOYSA-N 1,2,3,4-tetrahydrotriazine Chemical compound C1NNNC=C1 FIDRAVVQGKNYQK-UHFFFAOYSA-N 0.000 title abstract 2
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- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 32
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- 239000011731 tocotrienol Substances 0.000 description 1
- 235000019148 tocotrienols Nutrition 0.000 description 1
- QURCVMIEKCOAJU-UHFFFAOYSA-N trans-isoferulic acid Natural products COC1=CC=C(C=CC(O)=O)C=C1O QURCVMIEKCOAJU-UHFFFAOYSA-N 0.000 description 1
- ZCIHMQAPACOQHT-ZGMPDRQDSA-N trans-isorenieratene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/c1c(C)ccc(C)c1C)C=CC=C(/C)C=Cc2c(C)ccc(C)c2C ZCIHMQAPACOQHT-ZGMPDRQDSA-N 0.000 description 1
- LOIYMIARKYCTBW-OWOJBTEDSA-N trans-urocanic acid Chemical compound OC(=O)\C=C\C1=CNC=N1 LOIYMIARKYCTBW-OWOJBTEDSA-N 0.000 description 1
- LOIYMIARKYCTBW-UHFFFAOYSA-N trans-urocanic acid Natural products OC(=O)C=CC1=CNC=N1 LOIYMIARKYCTBW-UHFFFAOYSA-N 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 229940078499 tricalcium phosphate Drugs 0.000 description 1
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 1
- 235000019731 tricalcium phosphate Nutrition 0.000 description 1
- WGKLOLBTFWFKOD-UHFFFAOYSA-N tris(2-nonylphenyl) phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(OC=1C(=CC=CC=1)CCCCCCCCC)OC1=CC=CC=C1CCCCCCCCC WGKLOLBTFWFKOD-UHFFFAOYSA-N 0.000 description 1
- HBYRZSMDBQVSHO-UHFFFAOYSA-N tris(2-tert-butyl-4-methylphenyl) phosphite Chemical compound CC(C)(C)C1=CC(C)=CC=C1OP(OC=1C(=CC(C)=CC=1)C(C)(C)C)OC1=CC=C(C)C=C1C(C)(C)C HBYRZSMDBQVSHO-UHFFFAOYSA-N 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
- 229940040064 ubiquinol Drugs 0.000 description 1
- QNTNKSLOFHEFPK-UPTCCGCDSA-N ubiquinol-10 Chemical compound COC1=C(O)C(C)=C(C\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CCC=C(C)C)C(O)=C1OC QNTNKSLOFHEFPK-UPTCCGCDSA-N 0.000 description 1
- 229940035936 ubiquinone Drugs 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 229940116269 uric acid Drugs 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
-
- 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
Definitions
- the invention relates to powdered preparations containing 2,4,6-trianilino-p- (carbo-2'-ethylhexyl-1'-oxi) -1, 3,5-triazine, their preparation and their use as photostable light stabilizers.
- UVC range rays with a wavelength that is less than 290 nm
- UVB range rays in the range between 290 nm and 320 nm, the so-called UVB range, cause an on the skin erythema, e 'pen simple sunburn or even more or less severe burns.
- the narrower range around 308 nm is given as a maximum of the erythema effectiveness of sunlight.
- Aminobenzoic acid cinnamic acid, salicylic acid, benzophenone and 2-phenylbenzimidazole.
- UVA range For the range between about 320 nm and about 400 nm, the so-called UVA range, it is important to have filter substances available, since their rays can cause reactions in light-sensitive skin. It has been proven that UVA radiation leads to damage to the elastic and collagen fibers of the connective tissue, which causes the skin to age prematurely, and that it can be seen as the cause of numerous phototoxic and photoallergic reactions. The damaging influence of UVB radiation can be intensified by UVA radiation. Derivatives of dibenzoylmethane are used to protect against UVA rays, but their photostability is not sufficient (Int. J. Cosm. Science 10, 53 (1988)). However, UV radiation can also lead to photochemical reactions, in which case the photochemical reaction products interfere with the skin's metabolism.
- Such photochemical reaction products are predominantly free radical compounds, for example hydroxy radicals.
- Undefined radical-free photo products that arise in the skin itself can also display uncontrolled subsequent reactions due to their high reactivity.
- singlet oxygen a non-radical excited state of the oxygen molecule can occur with UV radiation, just as short-lived epoxies and many others.
- Singlet oxygen for example, is characterized by increased reactivity compared to the triplet oxygen that is normally present (radical ground state). However, there are also excited, reactive (radical) triplet states of the oxygen molecule.
- UV radiation also belongs to ionizing radiation. There is therefore a risk that ionic species can also be formed when exposed to UV, which in turn can then have an oxidative effect on the biochemical processes.
- UV filters A technical disadvantage of many UV filters is their poor solubility in water, or in natural and synthetic oils, e.g. in silicone oils and in fatty acid trigH'cerides, which often limits their use, for example in cosmetic formulations.
- GB-A-2 303549 describes a grinding process for the production of micronized insoluble organic UV absorbers in the presence of alkyl polyglycosides.
- the micronisates obtained in this way can be incorporated into cosmetic sunscreen preparations.
- GB-A-2 286774 also includes a milling process for micronizing insoluble organic UV absorbers.
- EP-A-1 127567 describes aqueous dispersions of sparingly water-soluble or water-insoluble organic UV filter substances and dry powders produced therefrom, characterized in that they contain at least one sparingly water-soluble or water-insoluble organic UV filter substance as a colloidally disperse phase in amorphous or partially amorphous form ,
- the use of the protective colloids mentioned in this document - in particular gelatin or casein or caseinate - leads to powdery products whose solubility in cold water is unsatisfactory. Furthermore, gelatin and casein in cosmetic formulations can cause skin allergies.
- modified protective starch is used in process step a).
- aqueous dispersions means both aqueous suspensions and emulsions.
- Aqueous suspensions in which the dispersed phase contains the triazine I as nanoparticulate particles are preferred.
- modified starch preferably includes esters of starch with organic acids, for example with acetic acid and higher fatty acids (C 6 -C26), and with succinic acid, adipic acid and citric acid.
- the starch can be obtained from corn, potatoes or wheat, among others.
- a particularly preferred modified starch is octenyl succinate starch, which is marketed under the trademark HiCap ® by National Starch or EmCap ® by Cerestar.
- a preferred variant of the method according to the invention is characterized in that the dispersion in stage a) comprises the following steps:
- the nanodisperse phase in step a 3 ) can be solid nanoparticles [suspension; obtainable by combination of a t ) and a 3 )] or nanodroplets (emulsion; obtainable by combination of a 2 ) and a 3 )].
- the water-miscible solvents used in stage ai) are above all water-miscible, thermally stable, volatile solvents containing only carbon, hydrogen and oxygen, such as alcohols, ethers, esters, ketones and acetals.
- Such solvents are expediently used which are at least 10% water-miscible, have a boiling point below 200 ° C., preferably below 100 ° C. and / or have less than 10 carbons.
- Methanol is particularly preferred, Ethanol, n-propanol, isopropanol, 1,2-butanediol-1-methyl ether, 1,2-propanediol-1-n-propyl ether, tetrahydrofuran or acetone or mixtures thereof, isopropanol or acetone are very particularly preferably used.
- a water-immiscible organic solvent stands for an organic solvent with a water solubility at normal pressure of less than 10%.
- Possible solvents include halogenated aliphatic hydrocarbons, such as methylene chloride, chloroform and carbon tetrachloride, carboxylic acid esters such as diethyl carbonate, ethyl formate, methyl, ethyl or isopropyl acetate and ethers such as methyl tert. butyl ether in question.
- Preferred, water-immiscible organic solvents are the following compounds from the group consisting of dimethyl carbonate, propylene carbonate, ethyl formate, ethyl acetate, isopropyl acetate and methyl tert. butyl ether.
- the production of the dry powder in process step b) can include by spray drying, spray cooling, freeze-drying and by drying in a fluidized bed, convection drying or contact drying, the drying also being able to be carried out in the presence of a coating material (powdering agent).
- Suitable coating agents include: Corn starch, silica or tricalcium phosphate.
- cryoprotective substances such as e.g. Trehalose or polyvinylpyrrolidones can be added.
- the triazine I dissolves in acetone or isopropanol or a mixture of water and acetone or water and isopropanol at temperatures in the range from 50 to 240 ° C.
- the solution obtained is mixed with an aqueous molecularly disperse or colloidally disperse solution of modified starch, in particular octenyl succinate starch at temperatures in the range from 25 to 120 ° C. and
- dry powders are advantageously produced by triazine of the formula I in acetone or isopropanol or a mixture of water and acetone or water and isopropanol at temperatures in the range from 50 ° C. to 240 ° C, in particular 100 ° C to 200 ° C, particularly preferably in the range from 105 ° C to 180 ° C.
- the application of increased pressure e.g. in the range from 20 bar to 200 bar, preferably 30 to 100 bar.
- the molecularly disperse solution thus obtained is then mixed directly with the optionally cooled aqueous molecularly disperse or colloidally disperse solution of the modified starch, in particular octenyl succinate starch, in such a way that a mixture temperature of about 25 ° C. to 120 ° C., preferably 40 ° C. adjusted to 80 ° C, particularly preferably 45 C C to 70 ° C.
- the solvent component is transferred into the aqueous phase and the hydrophobic phase of the triazine is formed as a nanodisperse phase.
- the mixing in step a 3 ) can be carried out by introducing the thazine-containing solution and metering in the aqueous solution of modified starch or vice versa, or by preferably metering both solutions simultaneously and continuously into a mixing chamber.
- a further plasticizer to the colloid, such as sugar or sugar alcohols such as sucrose, glucose, glucose syrup, dextrin, invert sugar, sorbitol, mannitol or glycerol.
- stabilizers such as .alpha.-tocopherol, t-butyl-hydroxy-toluene, t-butyl-hydroxyanisole, ascorbic acid or ethoxyquin. They can be added to either the aqueous or the solvent phase, but they are preferably dissolved together with the triazine I in the solvent phase.
- the light stabilizer formulations can be based on low molecular weight surface-active compounds (emulsifiers) in a concentration of 0.01 to 70% by weight, preferably 0.1 to 50% by weight, particularly preferably 0.5 to 20% by weight on the dry matter of the sunscreen formulation.
- emulsifiers emulsifiers
- amphiphilic compounds or mixtures of such compounds are particularly suitable.
- all surfactants with an HLB value of 5 to 20 can be used.
- esters Long-chain fatty acids with ascorbic acid, mono- and diglycerides of fatty acids and their oxymethylation products, esters of mono-fatty acid glycerides with acetic acid, citric acid, lactic acid or diacetyl tartaric acid, polyglycerol fatty acid esters such as the monostearate of triglycerol, sorbitan fatty acid ester, propylene glycol enol fatty acid ester, and propylene glycol enol fatty acid ester, preferably propylene glycol enol glycol ester.
- preservatives such as e.g. Add methyl 4-hydroxybenzoate, propyl 4-hydroxybenzoate, sorbic acid or benzoic acid or their salts.
- dry powders can be obtained which no longer lose their properties obtained in the primary dispersion. This means that the amorphous or semi-crystalline character of the UV filter substance is retained. It is also a property of the invention that these powders, when redispersed again, with a deviation of 20%, preferably ⁇ 15%, have the same particle size distribution that they had as the primary dispersion.
- the process is characterized in that the suspension produced in process step a) is ground into a dry powder before being transferred.
- the grinding process is preferably carried out in such a way that the triazine I in crystalline form in an aqueous mc. kulardispersen or colloidally disperse solution of modified starch suspended i / rv, 'crushed to the desired particle size by grinding.
- the grinding can be carried out in a manner known per se, e.g. be carried out with a ball mill. Depending on the type of mill used, grinding is carried out until the particles have an average particle size D [4.3], determined via Fraunhofer diffraction, of 0.01 to 100 ⁇ m, preferably 0.02 to 50 ⁇ m, particularly preferably 0.05 to 20 ⁇ m , very particularly preferably 0.05 to 5 ⁇ m, in particular 0.1 to 1 ⁇ m.
- D [4,3] denotes the volume-weighted mean diameter (see manual for Malvern Mastersizer S, Malvern Instruments Ltd., UK).
- the new light stabilizer formulations are characterized in that they contain the triazine of the formula I, the amorphous content of which is in the range greater than 10%, preferably greater than 30%, particularly preferably in the range from 50 to 100%, very particularly preferably in the range from 75 to 99% lies.
- the crystallinity rate of triazine I can be determined, for example, by X-ray diffraction measurements.
- the content of triazine of the formula I in the light stabilizer formulations according to the invention is in the range from 0.1 to 70% by weight, preferably in the range from 2 to 40% by weight, particularly preferably in the range from 3 to 30% by weight. %, very particularly preferably in the range from 5 to 25% by weight, based on the dry mass of the formulations.
- the average particle size D [4,3] of the nanoparticulate particles in the aqueous dispersion is, depending on the type of formulation method, in the range from 0.01 to 100 ⁇ m, preferably in the range from 0.02 to 50 ⁇ m, particularly preferably in the range from 0, 05 to 20 ⁇ m, very particularly preferably in the range from 0.05 to 5 ⁇ m, in particular 0.1 to 1 ⁇ m.
- the formulations according to the invention - dispersions and dry powders made therefrom - are outstandingly suitable for stabilizing organic material and the like. against the effects of light, oxygen and heat. They are the organic material to be stabilized in a concentration of 0.01 to 10 wt .-%, preferably 0.01 to 5 wt .-%, particularly preferably from 0.02 to 2 wt .-%, based on the organic material , added before, during or after its manufacture.
- Organic material includes, for example, photographic recording materials, e.g. B. photographic emulsions or precursors for plastics and paints, but especially plastics and paints themselves.
- Organic material also means cosmetic preparations such as creams, lotions, gels, lipsticks.
- the present invention also relates to an organic material stabilized against the action of light, oxygen and heat, in particular plastics and lacquers, containing 0.01 to 10% by weight, preferably 0.01 to 5% by weight, particularly preferably of 0.02 to 2% by weight, based on the total amount of organic material, of triazine I in the form of the formulations according to the invention.
- the organic material stabilized by the formulations according to the invention may optionally contain further additives, e.g. Antioxidants, light stabilizers, metal deactivators, antistatic agents, flame retardants, pigments and fillers.
- further additives e.g. Antioxidants, light stabilizers, metal deactivators, antistatic agents, flame retardants, pigments and fillers.
- Antioxidants and light stabilizers which can be added in addition to the formulations according to the invention are e.g. Compounds based on sterically hindered phenols or costabilizers containing sulfur or phosphorus.
- phenolic antioxidants examples include 2,6-di-tert-butyl-4-methylphenol, n-octadecyl- ⁇ - (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 1, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1, 3,5-trimethyl-2,4,6-tris (3,5-di-tert-butyl- 4-hydroxybenzyl) benzene, 1,3,5-tris- (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate, 1,3,5-tris- [ß- (3,5- di-tert-butyl-4-hydrox ⁇ henyl) -propionylethyl] iso- cyanurate, 1,3,5-tris- (2,6-dimethyl-3-hydroxy-4-tert-i b j tylbenzyl) - Isocyanurate
- phosphorus-containing antioxidants examples include tris (nonylphenyl) phosphite, distearylpentaerythritol diphosphite, tris (2,4-di-tert-butyl-phenyl) phosphite, tris (2-tert-butyl-4-methylphenyl) phosphite , Bis- (2,4-di-tert-butylphenyl) pentaerythritol diphosphite and tetrakis (2,4-di-tert-butylphenyl) -4,4'-biphenylene diphosphite.
- sulfur-containing antioxidants are dilaurylthiodipropionate, dimyristylthiodipropionate, distearylthiodipropionate, pentaerythritol tetrakis ( ⁇ -laurylthiopropionate) and pentaerythritol tetrakis ( ⁇ -hexylthiopropionate).
- antioxidants and light stabilizers which can be used together with the formulations according to the invention are, for example, 2- (2'-hydroxyphenyl) benzotriazoles, 2-hydroxybenzophenones, aryl esters of hydroxybenzoic acids, ⁇ -cyanocinnamic acid derivatives, benzimidazolecarboxylic acid anilides, nickel compounds or oxalic acid dianilides.
- a particularly good stabilization is obtained if at least one light stabilizer from the class of sterically hindered amines is added to the formulations according to the invention in the usual concentration.
- Suitable sterically hindered amines are: bis (2,2,6,6-tetramethylpiperidyl) sebacate, bis (1,2,2,6,6-pentamethylpiperidyl) sebacate, the condensation product of 1- Hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid, the condensation product of N, N'-di (2,2,6,6-tetramethylpiperidyl) hexamethylene diamine and 4-tert-octylamino -2,6-dichloro-1, 3,5-triazine, tris- (2,2,6,6-tetramethylpiperidy -nitrilotriacetate, tetrakis (2,2,6,6-tetramethyl-4-piperidyl) - 1, 2,3,4-butane tetracarboxylate, 1, 1 '- (1,2-ethanediyl) -bis- (3,3,5,5-tetramethylpiperazinone),
- plastics which can be stabilized by the compounds I according to the invention are:
- Polymers of mono- and diolefins e.g. Low or high density polyethylene, polypropylene, linear polybutene-1, polyisoprene, polybutadiene and copolymers of mono- or diolefins or mixtures of the polymers mentioned;
- Copolymers of mono- or diolefins with other vinyl monomers e.g.
- Polystyrene and copolymers of styrene or ⁇ -methylstyrene with dienes and / or acrylic derivatives such as e.g. Styrene-butadiene, styrene-acrylonitrile (SAN), styrene-ethyl methacrylate,
- ABS methyl methacrylate butadiene styrene
- halogen-containing polymers e.g. Polyvinyl chloride, polyvinyl fluoride, polyvinylidene fluoride and their copolymers;
- Polymers derived from ⁇ , ⁇ -unsaturated acids and their derivatives such as polyacrylates, polymethacrylates, polyacrylic acids and polyacrylonitriles;
- Polymers derived from unsaturated alcohols and amines or from their acyl derivatives or acetals e.g. Polyvinyl alcohol and polyvinyl acetate;
- aqueous formulations and varnish coatings for example industrial coatings, can be stabilized with the formulations according to the invention.
- stove enamels among them vehicle paints, preferably two-coat paints, are particularly noteworthy.
- the formulations can be added to the paint in solid or liquid form. Their good solubility in coating systems is of particular advantage.
- antioxidants and light stabilizers can also be used when used as stabilizers in paints.
- the light stabilizer formulations according to the invention are very particularly preferably also suitable as photostable UV filters in cosmetic and dermatological preparations for protecting human skin or human hair against sun rays, but also against artificial light which has high UV components, alone or together with for cosmetic or pharmaceutical preparations known, absorbing compounds in the UV range.
- organic materials also include human skin and hair.
- the cosmetic and pharmaceutical preparations as such are of course also stabilized in order to remain effective for as long as possible.
- the present invention also relates to cosmetic and pharmaceutical preparations containing light stabilizers for protecting human skin or hair against UV light in the range from 280 to 400 nm, characterized in that they are in a cosmetically or pharmaceutically suitable carrier as photostable UV -Filter effective amounts of a formulation of triazine I in amorphous or partially amorphous form - alone or together with compounds known per se for cosmetic and pharmaceutical preparations, absorbing in the UV-A and UV-B range - contain, the formulations are the aqueous dispersions according to the invention mentioned at the beginning or the dry powders produced therefrom.
- the amount of triazine I in the form of the formulations according to the invention which is used in the cosmetic and pharmaceutical preparations is in the range from 0.05 to 20% by weight, preferably 0.1 to 10% by weight, particularly preferably in the range from 1 to 7% by weight, based on the total amount of the cosmetic and pharmaceutical preparation.
- the cosmetic and pharmaceutical preparations containing light stabilizers are generally based on a carrier which contains at least one oil phase.
- preparations based on water alone are also possible. Accordingly, oils, oil-in-water and water-in-oil emulsions, creams and pastes, lip protection stick masses or grease-free gels are possible.
- the emulsions include O / W macroemulsions, O / W microemulsions or O / W / O emulsions with triazine of the formula I in dispersed form are also possible, the emulsions being obtainable by phase inversion technology in accordance with DE-A-197 26 121.
- Common cosmetic auxiliaries that can be considered as additives are e.g. Co-emulsifiers, fats and waxes, stabilizers, thickeners, biogenic agents, film formers, fragrances, dyes, pearlescent agents, preservatives, pigments, electrolytes (e.g. magnesium sulfate) and pH regulators.
- Known W / O and, in addition, also O / W emulsifiers such as polyglycerol esters, sorbitan esters or partially esterified glycerides are preferred as co-emulsifiers.
- Typical examples of fats are glycerides; as waxes include Beeswax, paraffin wax or micro waxes may be mentioned in combination with hydrophilic waxes.
- Suitable thickeners are, for example, crosslinked polyacrylic acids and their derivatives, polysaccharides, in particular xanthan gum, guar guar, agar agar, alginates and tyloses, carboxymethyl cellulose and hydroxyethyl cellulose, and also fatty alcohols, monoglycerides and fatty acids, polyacrylates, polyvinyl alcohol and polyvinyl pyrrole.
- Biogenic active substances are understood to mean, for example, plant extracts, protein hydrolyzates and vitamin complexes.
- Common film formers are, for example, hydrocolloids such as chitosan, microcrystalline chitosan or quaternized chitosan, polyvin 'oyrrolidone, vinylpyrrolidone / vinyl acetate copolymers, polymers of the acrylic acid series, quaternary cellulose derivatives and similar compounds.
- Suitable preservatives are, for example, formaldehyde solution, p-hydroxybenzoate or sorbic acid.
- Suitable pearlizing agents are, for example, glycol distearic acid esters such as ethylene glycol distearate, but also fatty acids and fatty acid monoglycol esters.
- Dyes which can be used are the substances which are suitable and approved for cosmetic purposes, as compiled, for example, in the publication "Cosmetic Colorants” by the Dye Commission of the German Research Foundation, published by Verlag Chemie, Weinheim, 1984. These dyes are usually used in a concentration of 0.001 to 0.1% by weight, based on the mixture as a whole.
- antioxidants are advantageously selected from the group consisting of amino acids (eg glycine, histidine, tyrosine, tryptophan) and their derivatives, imidazoles (eg urocanic acid) and their derivatives, peptides such as D, L-carnosine, D-camosine, L-carnosine and their derivatives (eg anserine), carotenoids, carotenes (eg ß-carotene, lycopene) and their derivatives, chlorogenic acid and their derivatives, lipoic acid and their derivatives (eg dihydroliponic acid), aurothioglucose, propylthiouracil and other thiols (eg thiorodoxin, glutathione , Cysteine, cystine, cystamine and their glycosyl, N-acetyl,
- butioninsulfoximines homocysteine sulfoximines, buthioninsulfones, penta-, hexa- , Heptathionesulfoximine
- very low tolerable doses eg pmol to ⁇ mol / kg
- metal chelators eg ⁇ -hydroxy fatty acids, palmitic acid, phytic acid, lactoferrin), ⁇ -hydroxy acids (eg citric acid, lactic acid, malic acid)
- Humic acid bile acid, bile extracts, bilirubin, biliverdin, EDTA and their derivatives, unsaturated fatty acids and their derivatives (e.g.
- ⁇ -linolenic acid linoleic acid, oleic acid
- folic acid and their derivatives ubiquinone and ubiquinol and their derivatives
- vitamin C and their derivatives e.g. ascorbyl palmitate, Mg-ascorbyl phosphate, ascorbyl acetate
- tocopherol and derivatives e.g.
- vitamin E acetate, tocotrienol
- vitamin A and derivatives vitamin A palmitate
- the amount of the aforementioned antioxidants (one or more compounds) in the preparations is preferably 0.001 to 30% by weight, particularly preferably 0.05 to 20% by weight, in particular 1 to 10% by weight, based on the total weight of the Preparation.
- vitamin E and / or its derivatives represent the antioxidant (s)
- vitamin A and / or its derivatives or carotenoids represent the antioxidant (s)
- Typical oil components in cosmetics are, for example, silicone oils, paraffin oil, glyceryl stearate, isopropyl myristate, diisopropyl adipate, 2-ethylhexanoic acid, cetyl stearyl ester, hydrogenated polyisobutene, petroleum jelly, caprylic acid / capric acid triglycerides, microcrystalline wax, lanolin and stearic acid.
- the total proportion of auxiliaries and additives can be 1 to 80, preferably 6 to 40% by weight and the non-aqueous proportion ("active substance") 20 to 80, preferably 30 to 70% by weight, based on the composition.
- the preparation of the agents can be carried out in a manner known per se, i.e. for example by hot, cold, hot-hot / cold or PIT emulsification take place. This is a purely mechanical process, there is no chemical reaction.
- sunscreen preparations can be in liquid, pasty or solid form, for example as water-in-oil creams, ⁇ Mn-water creams and lotions, Aerosol foam creams, gels, oils, grease pencils, powders, sprays or alcoholic-aqueous lotions.5
- other substances known per se in the UV range can also be used, provided that they are used in the overall system of the combination of UV filters to be used according to the invention are stable.
- Most of the light stabilizers in the cosmetic and pharmaceutical preparations used to protect the human epidermis0 consist of compounds which absorb UV light in the UV-B range, i.e. in the range from 280 to 320 nm.
- the proportion of UV-A absorbers to be used according to the invention is 10 to 90% by weight, preferably 20 to 50% by weight, based on the total amount of UV-B and UV-A absorbents Substances.
- Any UV-A and UV-B filter substances are suitable as UV filter substances which are used in combination with the formulations to be used according to the invention. Examples include:
- Polymeric or polymer-bound filter substances can also be used according to the invention.
- the cosmetic and dermatological preparations according to the invention can advantageously also contain inorganic pigments based on metal oxides and / or other metal compounds which are sparingly soluble or insoluble in water, in particular the oxides of titanium (TiO 2 ), zinc (ZnO), iron (e.g. Fe 2 O 3 ), zirconium (ZrO 2 ), silicon (SiO 2 ), manganese (e.g. MnO), aluminum (Al 2 O 3 ), cerium (eg Ce 2 O 3 ), mixed oxides of the corresponding metals and mixtures of such oxides. Pigments based on TiO 2 and ZnO are particularly preferred.
- the inorganic pigments can be in hydrophobic form, i.e. that they are treated to be water-repellent on the surface.
- This surface treatment can consist in that the pigments are provided with a thin hydrophobic layer in a manner known per se, as described in DE-A-33 14742.
- the light stabilizer formulations according to the invention can be used in shampoos, lotions, gels, hair sprays, hair colorants, aerosol foam creams or emulsions in concentrations of 0.1 to 10% by weight, preferably 1 to 7% by weight .-% are incorporated.
- the respective formulations can include can be used for washing, dyeing and styling the hair.
- the formulations to be used according to the invention are generally distinguished by a particularly high absorption capacity in the UV-A radiation range with a sharp band structure. Furthermore, they are readily soluble in cosmetic oils and can be easily incorporated into cosmetic formulations.
- the emulsions produced with the formulations are particularly notable for their high stability, the formulations I themselves are notable for their high photostability, and the preparations thus produced are notable for their pleasant skin feel.
- the UV filter effect of the formulations according to the invention can also be used to stabilize active ingredients and auxiliaries in cosmetic and pharmaceutical formulations.
- the preparations according to the invention are distinguished by a particularly high absorption capacity in the area of UV-B radiation with a sharp band structure and high sun protection factors.
- preparations according to the invention have the advantage of improved cold water dispersibility compared to other triazine-containing formulations.
- the following examples are intended to illustrate the present invention without restricting it.
- a molecularly disperse solution of 5 g Uvinul ® T150 in 95 g of acetone was fed at 150 ° C a mixing chamber. There the mixture was mixed with 1300 g of a 30 ° C warm solution of HiCap ® (15 g / l). The entire process was carried out under a pressure limit of 40 bar to prevent evaporation of the solvent. After mixing, a colloidally dispersed Uvinul ® T150 dispersion with a white, cloudy shade was obtained.
- Uvinul ® T 150 25 g were dissolved in 216 g of isopropanol at molecular temperature at room temperature.
- the solution was fed to a mixing chamber at 240 ° C. There they were mixed with an aqueous solution of 45 g HiCap in 1455 ml demineralized water. The entire process was carried out under a pressure limit of 40 bar to prevent evaporation of the solvent. After mixing, a colloidally dispersed Uvinul ® T 150 dispersion with a white, cloudy shade was obtained.
- Example 4 Composition for lip care
- Example 5 Composition for sunblock with micropigments
- magnesium stearate 0.60 magnesium stearate, 50 tocopheryl acetate, 00 glycerin, 25 methyl paraben 0.15 propylparaben 0.05 tocopherol
- Example 10 Day lotion with UV protection mass content (% by weight)
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Dermatology (AREA)
- Cosmetics (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/571,769 US20070025931A1 (en) | 2004-09-09 | 2004-09-09 | Powdery preparations containing 2.4.6-trianilino-p-(carbo-2'-ethylhexyl-1'-oxi)-1.3.5-triazine |
CA002536679A CA2536679A1 (en) | 2003-09-15 | 2004-09-09 | Powdery preparations containing 2,4,6-trianilino-p-(carbo-2'-ethylhexyl-1'-oxi)-1,3,5-triazine |
EP04764994A EP1677743A1 (de) | 2003-09-15 | 2004-09-09 | Pulverförmige zubereitungen, enthaltend 2,4,6-trianilino-p- (carbo-2-ethylhexyl-1 -oxi)-1,3,5-triazin |
JP2006525764A JP2007505823A (ja) | 2003-09-15 | 2004-09-09 | 2,4,6−トリアニリノ−p−(カルボ−2’−エチルヘキシル−1’−オキシ)−1,3,5−トリアジン含有粉末調製物 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003142856 DE10342856A1 (de) | 2003-09-15 | 2003-09-15 | Pulverförmige Zubereitungen, enthaltend 2,4,6-Trianilino-p-(carbo-2'-ethylhexyl-1'-oxi)-1,3,5-triazin |
DE10342856.9 | 2003-09-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005025530A1 true WO2005025530A1 (de) | 2005-03-24 |
Family
ID=34305817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/010058 WO2005025530A1 (de) | 2003-09-15 | 2004-09-09 | Pulverförmiger zubereitungen, enthaltend 2,4,6-trianilino-p-(carbo-2'-ethylhexyl-1'-oxi)-1,3,5-triazin |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1677743A1 (de) |
JP (1) | JP2007505823A (de) |
CN (1) | CN1852698A (de) |
CA (1) | CA2536679A1 (de) |
DE (1) | DE10342856A1 (de) |
WO (1) | WO2005025530A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008546847A (ja) * | 2005-06-29 | 2008-12-25 | ディーエスエム アイピー アセッツ ビー.ブイ. | イソフラボンのナノ粒子を含む局所組成物 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8182967B2 (en) * | 2009-08-31 | 2012-05-22 | General Electric Company | Optical data storage media and methods for using the same |
FR3053333B1 (fr) * | 2016-06-30 | 2018-07-27 | L'oreal | Melange liquide contenant du 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one et un com-pose de niacinamide, et composition cosmetique le contenant |
FR3104977B1 (fr) * | 2019-12-20 | 2023-05-05 | Oreal | Sérum à base de rétinol |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1026493A (en) * | 1961-10-16 | 1966-04-20 | Eastman Kodak Co | Dry,vitamin-active product and process for preparing same |
WO1998019652A1 (en) * | 1996-11-06 | 1998-05-14 | The Boots Company Plc | Spray-dryed powder comprising at least one protein and one hydrolysed starch and its use for topical compositions |
EP0925777A1 (de) * | 1997-12-15 | 1999-06-30 | L'oreal | Pulförmige ascorbinsaüre enthaltende kosmetische und/oder dermatologische zusammensetzung |
EP1127567A2 (de) * | 2000-02-17 | 2001-08-29 | Basf Aktiengesellschaft | Wässrige Dispersion wasserunlöslicher organischer UV-Filtersubstanzen |
EP1213013A2 (de) * | 2000-11-29 | 2002-06-12 | Basf Aktiengesellschaft | Verfahren zur Herstellung fester Zubereitungen wasserlöslicher, schwer wasserlöslicher oder wasserunlöslicher Wirkstoffe |
-
2003
- 2003-09-15 DE DE2003142856 patent/DE10342856A1/de not_active Withdrawn
-
2004
- 2004-09-09 CN CNA2004800265238A patent/CN1852698A/zh active Pending
- 2004-09-09 EP EP04764994A patent/EP1677743A1/de not_active Withdrawn
- 2004-09-09 WO PCT/EP2004/010058 patent/WO2005025530A1/de not_active Application Discontinuation
- 2004-09-09 JP JP2006525764A patent/JP2007505823A/ja active Pending
- 2004-09-09 CA CA002536679A patent/CA2536679A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1026493A (en) * | 1961-10-16 | 1966-04-20 | Eastman Kodak Co | Dry,vitamin-active product and process for preparing same |
WO1998019652A1 (en) * | 1996-11-06 | 1998-05-14 | The Boots Company Plc | Spray-dryed powder comprising at least one protein and one hydrolysed starch and its use for topical compositions |
EP0925777A1 (de) * | 1997-12-15 | 1999-06-30 | L'oreal | Pulförmige ascorbinsaüre enthaltende kosmetische und/oder dermatologische zusammensetzung |
EP1127567A2 (de) * | 2000-02-17 | 2001-08-29 | Basf Aktiengesellschaft | Wässrige Dispersion wasserunlöslicher organischer UV-Filtersubstanzen |
EP1213013A2 (de) * | 2000-11-29 | 2002-06-12 | Basf Aktiengesellschaft | Verfahren zur Herstellung fester Zubereitungen wasserlöslicher, schwer wasserlöslicher oder wasserunlöslicher Wirkstoffe |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008546847A (ja) * | 2005-06-29 | 2008-12-25 | ディーエスエム アイピー アセッツ ビー.ブイ. | イソフラボンのナノ粒子を含む局所組成物 |
US8685456B2 (en) | 2005-06-29 | 2014-04-01 | Dsm Ip Assets B.V. | Topical compositions comprising nanoparticles of an isoflavone |
Also Published As
Publication number | Publication date |
---|---|
CA2536679A1 (en) | 2005-03-24 |
DE10342856A1 (de) | 2005-04-21 |
CN1852698A (zh) | 2006-10-25 |
EP1677743A1 (de) | 2006-07-12 |
JP2007505823A (ja) | 2007-03-15 |
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