- Synthesis method of ultraviolet absorber UVA Plus
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The invention discloses a synthesis method of an ultraviolet absorber UVA Plus. The method comprises the following steps: step 1, carrying out esterification reaction on phthalic anhydride and n-hexanol to obtain an intermediate monohexyl phthalate without other solvents, enabling the yield to reach over 99%, and enabling the intermediate to be directly subjected to the next step of reaction without refining; step 2, performing an acylation reaction on 3-hydroxy-N, N-diethylaniline and the intermediate monohexyl phthalate under the catalysis of a composite catalyst to prepare an ultraviolet absorber UVA Plus product, enabling the yield to be over 90%. The synthesis method has the advantages of easily available raw materials, easy refining and purification of the product, high yield, low production cost, and suitableness for industrial production.
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Paragraph 0026; 0033; 0036-0041; 0044-0046; 0049-0050
(2020/08/22)
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- A preparing method of diethylamino hydroxybenzoyl hexylbenzoate
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The present invention relates to a method for the preparation of diethylamino hydroxybenzoyl hexyl benzoate. Specifically, the present invention relates to a method for preparing diethylamino hydroxybenzoyl hexyl benzoate which is easy to manufacture and commercially available in mass production, and diethylamino hydroxybenzoyl hexyl benzoate crystalline particles prepared thereby. According to the present invention, diethylamino hydroxybenzoyl hexyl benzoate crystalline particles having excellent UV blocking effect can be obtained in a stable and high yield.COPYRIGHT KIPO 2020
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- COSMETIC COMPOSITIONS COMPRISING AN ESTER DERIVED FROM 4-CARBOXY-2-PYRROLIDINONE AND A MEROCYANIN SCREENING AGENT; USE OF SAID DERIVATIVE AS A SOLVENT FOR A MEROCYANIN SCREENING AGENT
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The present invention relates to a composition comprising, in a cosmetically acceptable medium, at least one ester derived from 4-carboxy-2-pyrrolidinone, of formula (I) below: in which: R1 denotes a linear or branched C1-C20 alkyl radical,R2 denotes a linear or branched C1-C20 alkyl radical that may contain a C5-C6 ring, the phenyl radical, the benzyl radical or the phenethyl radical,and at least one merocyanin-type UV screening agent. The present invention also relates to the use of at least one ester derived from 4-carboxy-2-pyrrolidinone, of formula (I), as defined above, in a composition comprising, in a cosmetically acceptable medium, at least one merocyanin-type UV screening agent, as a solvent for said merocyanin screening agent, in and/or as an agent for improving the solubility of said merocyanin screening agent in said composition or with the aim of improving the sun protection factor.
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- COSMETIC TREATMENT METHOD USING A COMPOUND THAT CAN BE CONDENSED IN SITU AND A UV-RADIATION-FILTERING AGENT
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The present invention relates to a method for the cosmetic treatment of the skin, comprising the application, to the skin: of a compound or group of compounds A capable of condensing in situ and exhibiting at least one reactive functional group FA which is free after condensation; and of a screening agent C which screens out UV radiation, comprising a reactive functional group FC capable of forming a covalent bond or a physical (ionic, hydrogen) bond by reaction with the functional group FA.
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- ALPHA-AMINO ACID DERIVATIVES FOR IMPROVING SOLUBILITY
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The invention relates to the use of α-amino acid derivatives for improving the solubility of poorly soluble substances in water or aqueous solutions and to mixtures and preferred preparations.
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- USE OF CHROMAN-4-ONE DERIVATIVES
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The invention relates to the use of compounds of the formula (I) or of a composition comprising at least one compound of the formula (I), containing radicals as described in the claims, for the care, preservation or improvement of the general state of the skin or hair.
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- Method of Increasing the Tanning Effect of Self-tanning Substances
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The invention relates to a method for enhancing the tanning action of at least one self-tanner substance by reducing or eliminating the presence of oxygen.
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- Cosmetic/sunscreen compositions containing dibenzoylmethane compounds and dithiolane compound photostabilizers therefor
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Cosmetic/sunscreen compositions contain a combination of at least one dibenzoylmethane sunscreen compound and a photostabilizing amount of at least one dithiolane compound of formula (I) below:
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- Cosmetic compositions comprising photostabilized dibenzoylmethane compounds and 2-pyrrolidinone-4- carboxy esters
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Photostable cosmetic compositions contain, formulated into a cosmetically acceptable vehicle, at least one UV-screening system that includes: (a) at least one dibenzoylmethane compound, and(b) at least one 2-pyrrolidinone-4-carboxy ester compound having the following formula (I): in which: R1 is a linear or branched C1-C20 alkyl radical, andR2 is a linear or branched C1-C20 alkyl radical which optionally includes a C5-C6 ring member, the phenyl radical, the benzyl radical or the phenethyl radical.
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- Cosmetic compositions comprising 4-carboxy-2-pyrrolidinone esters and triazine lipophilic UV-screening agents
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UV-screening compositions, formulated into a cosmetically acceptable medium, contain at least one ester solvent derived from 4-carboxy-2-pyrrolidinone, of formula (I) below: in which: R1 is a linear or branched C1-C20 alkyl radical,R2 is a linear or branched C1-C20 alkyl radical that may contain a C5-C6 ring member, the phenyl radical, the benzyl radical or the phenethyl radical, and at least one triazine-type lipophilic UV-screening agent.
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- OIL-IN-WATER EMULSION
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The present invention relates to a composition in the form of an emulsion of the oil-in-water type formed of oily globules which are each provided with a lamellar liquid crystal coating and which are dispersed in an aqueous phase, wherein it has a pH ranging from 3 to 5.5 and in that it contains at least one lipophilic surface-active agent with an HLB ranging from 2 to 5, at least one hydrophilic surface-active agent with an HLB ranging from 8 to 12 and at least one amphiphilic compound of ionic nature at a pH ranging from 3 to 5.5.
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- UV FILTER CAPSULE
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The present invention relates to UV filter capsules, to the use thereof for the preparation of cosmetic or dermatological formulations or dispersions, and to cosmetic or dermatological formulations which comprise the capsules, and to a process for the production thereof.
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- TYROSINASE INHIBITORS
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The invention relates to compounds of the formula I where the substituents AA1, AA2, o and R have a meaning indicated in claim 1, and to the salts and solvates and mixtures thereof, to a process for the preparation thereof, preparations and the use thereof.
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- COSMETIC AND/OR DERMATOLOGICAL COMPOSITION BASED ON N,N'-DIARYLMETHYLENEETHYLENEDIAMINEDIACETIC ACID ESTER(S)
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The present invention relates to a cosmetic and/or dermatological composition comprising, in a physiologically acceptable medium containing at least one oil: (a) at least one compound of general formula (Ia): and (b) an efficient amount of at least one solvent chosen from: (i) isononyl isononanoate;(ii) dimethyl isosorbide;(iii) the amino acid esters of formula (II): [in-line-formulae]R′1(CO)N(R′2)CH(R′3)(CH2)n(CO)OR′4??(II)[/in-line-formulae](iv) and a mixture thereof.
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- UVA FILTERS BASED ON ASCORBIC ACID DERIVATIVES
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The invention relates to compounds of formula (I) wherein R1, R2, R3, R4 have the meaning cited in the claims, to methods for the production thereof, to agents containing said compounds and to their use for the functionalisation of matrices, in particular their use as skin and/or hair-binding UV filters.
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- USE OF ASCORBIC ACID DERIVATIVES FOR THE FUNCTIONALIZATION OF MATRICES
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The invention relates to the use of at least one ascorbic acid derivative for the functionalisation of matrices, and to specific ascorbic acid derivatives and processes for the preparation thereof.
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- UVB FILTER BASED ON ASCORBIC ACID DERIVATIVES
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The invention relates to compounds of formula (I), wherein R1, R2, R3, R4 have the meaning cited in the claims, to methods for the production thereof, agents containing said compounds and to their use for the functionalisation of matrices, in particular their use as skin and/or hair-binding UV filters.
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- Aqueous fluid photoprotective compositions comprising tertiary-amide-terminated polyamide polymers
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Topically applicable, fluid anti-sun/sunscreen compositions useful for protecting the skin and/or the hair against the damaging effects of ultraviolet radiation, contain: (a) at least one photoprotective system for screening out UV radiation; and(b) at least one tertiary-amide-terminated polyamide (ATPA) polymer, formulated into a topically applicable, cosmetically acceptable aqueous support therefor; the subject anti-sun/sunscreen compositions are especially provided as sprays, notably for the purpose of increasing the sun protection factor (SPF) and/or of reducing or even eliminating the fluffing effect thereof.
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- COMPOSITION CONTAINING A PHENANTHRENOL
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Novel uses of phenanthrenol compounds for improving the appearance and/or texture of the skin.
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- Sun protection compositions comprising semi-crystalline polymers and hollow latex particles
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Topically applicable cosmetic/dermatological UV protection compositions having enhanced SPF contain at least one organic UV screening agent and/or at least one inorganic screening agent, such compositions also containing at least the following constituents (A) and (B): A) a semi-crystalline polymer which is solid at ambient temperature and has a melting point of greater than or equal to 30° C., containing a) a polymeric backbone and b) at least one crystallizable organic side chain and/or one crystallizable organic block forming part of the backbone of this said polymer, said polymer having a number-average molecular mass Mn of greater than or equal to 1,000, and B) hollow latex particles having a particle size ranging from 150 to 380 nm, formulated into a topically applicable, physiologically acceptable medium therefor.
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- UV FILTER CAPSULE CONTAINING AN AMINO-SUBSTITUTED HYDROXYBENZOPHENONE
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The present invention relates to UV filter capsules comprising at least one aminosubstituted hydroxybenzophenone, to the use thereof for producing cosmetic or dermatological formulations and preformulations, and to cosmetic or dermatological formulations which comprise the capsules, and to methods for the production thereof.
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- CHROMEN-4-ONE DERIVATIVES AS SELF-TANNING SUBSTANCE
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The invention relates to the use of compounds of the formula (I), where R1 and R2 may be identical or different and stand for H, OH, OCH3, CH3, CH2OH or CH2OCH3, R3 stands for H or straight-chain or branched C1- to C20-alkyl groups, R4 stands for H or OR8, R5 and R6 may be identical or different and are selected from —H, —OH, straight-chain or branched C1 to C20-alkyl groups, straight-chain or branched C3- to C20-alkenyl groups, straight-chain or branched C1- to C20-hydroxyalkyl groups, where the hydroxyl group may be bonded to a primary or secondary carbon atom of the chain, and furthermore the allyl chain may also be interrupted by oxygen, and R8 stands for H or straight-chain or branched C1- to C20-alkyl groups, with the proviso that R2 does not denote H if R1 denotes CH3, as self-tanning agents, and to compounds and the preparation thereof.
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- Photostable cosmetic compositions comprising dibenzoylmethane/pyrrolidinone compounds
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Photostable UV-photoprotecting cosmetic sunscreen compositions contain (a) an effective UV-photoprotecting amount of at least one dibenzoylmethane compound sunscreen, (b) an effective radiation-photostablizing amount of at least one pyrrolidinone compound having the formula (I) below: and, advantageously, at least one liquid fatty phase and at least one lipophilic active sunscreen agent of low solubility, formulated into (c) a cosmetically acceptable support therefor.
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- USE OF FLAVONOIDS
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The present invention relates to the use of at least one flavonoid for odour improvement and/or odour stabilisation, and to corresponding compositions and the preparation thereof.
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- ANTIOXIDANTS
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The present invention relates to the use of compounds of the formula (I) where R stands for [lacuna] with radicals defined in the description, as antioxidants, to corresponding novel compounds and compositions, and to corresponding processes for the preparation of compounds and compositions.
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- Flavonoids as Synergists for Enhancing the Action of Self-Tanning Substances
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The invention relates to the use of at least one flavonoid having an uncharged flavan skeleton as synergist for enhancing the action of self-tanning substances, such as trioses and tetroses, in cosmetic and dermatological formulations and to corresponding novel compositions and to the preparation thereof.
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- Dyeing processes comprising at least one multi-carbosite, multi-group coupling agent for wash-protecting the color of artificially dyed keratin fibers
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Disclosed herein is a cosmetic process for wash-protecting the color of artificially dyed keratin fibers, comprising applying to the keratin fibers at least one composition comprising at least one multi-carbosite, multi-group coupling agent, the coupling agent being an electrophilic hydrocarbon-based compound comprising neither an aldehyde group, nor a carboxylic acid group, nor a formol-generating group, the coupling agent comprising at least two identical reactive groups, the reactive groups not being carried by the same atom, if said atom is a carbon atom, and the coupling agent having a molecular weight of less than 500 g/mol.
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- Photoprotective cosmetic compositions comprising photostabilized dibenzoylmethane compounds and siloxane-containing arylalkyl benzoate amide compounds
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Photostable, topically applicable cosmetic/dermatological compositions contain at least one dibenzoylmethane sunscreen compound and at least one photostabilizing siloxane-containing arylalkyl amide compound of formula (I) below:
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- Flavonoid complexes with cyclodextrins
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The invention relates to complexes of certain flavonoid derivatives, of the formula I compositions which comprise such derivatives, corresponding processes for the preparation of the flavonoid derivatives or of compositions comprising same, and the use thereof, in particular for the care, preservation or improvement of the general state of the skin or hair. Formula (1), in which Z1 to Z4 and Z6 to Z10 each, independently of one another, denote H, OH, CH3COO, alkoxy, hydroxyalkoxy, mono- or oligoglycoside radicals and where the alkoxy and hydroxyalkoxy groups may be branched and unbranched and can have 1 to 18 C atoms. Formula (II) denotes, Z5 is a mono- or the oligoglycoside radical, where bonded to this glycoside radical, in each case via an —O— group, is at least one radical selected from certain benzo molecule.
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- Chromone complexes
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The invention relates to complexes of certain chromone derivatives, to compositions which comprise such derivatives, to corresponding processes for the preparation of the chromone derivatives or of compositions comprising same, and to the use thereof, in particular for the care, maintenance or improvement of the general state of the skin or hair.
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- Photostabilized dibenzoylmethane sunscreens immobilized within sol/gel matrices
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Photoprotective cosmetic/dermatological compositions well suited for the UV-photoprotection of the skin, hair, nails, eyebrows, eyelashes and/or lips, contain an effective photostable and UV-photoprotecting amount of at least one dibenzoylmethane organic sunscreen immobilized within a matrix prepared via sol-gel process from at least one silicon alkoxide, at least one non-ionic surfactant and water, but in the absence of any organic solvent, formulated into a topically applicable, cosmetically/dermatologically acceptable medium therefor.
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- Phase inverted oil-in-water photoprotective emulsions comprising nanopigments of metal oxides and 4,4-diarylbutadiene UV-A sunscreens
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Stable UV-photoprotective, phase inverted oil-in-water emulsions, well suited for the photoprotection of the skin, lips and/or hair, the average size of the globules which constitute the oily phase thereof ranging from 100 nm to 1,000 nm, contain inorganic metal oxide nanopigments and at least one organic UV-screening agent, and which also contain at least one organic 4,4-diarylbutadiene UV-A-screening agent.
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- Water-in-oil photoprotective emulsions comprising polyolefinic surfactants and 4,4-diarylbutadiene UV-A sunscreens
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Stable UV-photoprotective water-in-oil emulsions, well suited for the photoprotection of the skin, lips and/or hair against the damaging effects of UV-radiation, contain at least one polymeric surfactant comprising at least one polar part and at least one polyolefinic apolar part, and also containing at least one organic 4,4-diarylbutadiene UV-A-screening agent.
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- Nonaerosol/aerosol dispensing of sunscreen sprays comprising silica microparticles
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Nonaerosol/atomizer pumps or aerosol dispensers comprise (A) a reservoir confining at least one vaporizable sunscreen composition suited for UV-photoprotecting the skin and/or hair against the damaging effects of UV radiation, the at least one vaporizable sunscreen composition comprising (1) a UV-photoprotecting amount of at least one UV-sunscreen and (2) an SPF-enhancing amount of generally spherical silica microparticles, formulated into (3) a topically applicable, cosmetically acceptable carrier therefor, and (B) at least one agent for pressurizing the at least one vaporizable sunscreen composition into a spray of fine sunscreen particles.
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- Aqueous photoprotective compositions comprising acrylamido-2-methylpropanesulfonic acid polymers and 4,4-diarylbutadiene UV-A sunscreens
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Photoprotective compositions, e.g., oil-in-water or water-in-oil emulsions, well suited for the photoprotection of the skin, lips and/or hair against the damaging effects of UV-radiation, comprise at least one aqueous phase, at least one oily phase, at least one partially or completely neutralized, crosslinked or non-crosslinked water-soluble or water-dispersible acrylamido-2-methylpropanesulfonic acid (AMPS) polymer and at least one UV radiation-screening system, said at least one screening system comprising at least one 4,4-diarylbutadiene UV-A-screening agent
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- Finely divided photoprotective oil-in-water emulsions comprising 4,4-diarylbutadiene UV-A sunscreens
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UV-Photoprotective oil-in-water emulsions well suited for photoprotecting the skin, lips and/or hair against the damaging effects of UV-radiation, the oil globules of which having an average size of at most 500 nm and containing particles of at least one ionic polymer and at least one UV-radiation-screening system, such screening system comprising at least one 4,4-diarylbutadiene UV-A-screening agent.
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- Aqueous antisun/sunscreen compositions comprising amphiphilic 2-Acrylamidomethylpropanesulfonic acid polymers and water-soluble silicones
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Photoprotective compositions well suited for the photoprotection of the skin, lips and/or hair against the damaging effect of UV-radiation comprise at least one aqueous phase and at least one system for screening out UV-radiation, and which also contain: (a) at least one partially or totally neutralized, crosslinked or non-crosslinked amphiphilic polymer of 2-acrylamidomethylpropanesulfonic acid (AMPS), and (b) at least one water-soluble silicone comprising at least one terminal or pendent monovalent polyoxyalkylene group.
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- Preparation having antioxidant properties
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The invention relates to a preparation having antioxidant properties, comprising at least one compound of the formula I where R1 to R10 may be identical or different and are selected from H, OR11, straight-chain or branched C1- to C20-alkyl groups, straight-chain or branched C3- to C20-alkenyl groups, straight-chain or branched C1- to C20-hydroxyalkyl groups, where the hydroxyl group may be bonded to a primary or secondary carbon atom of the chain and furthermore the alkyl chain may also be interrupted by oxygen, and/or C3- to C10-cycloalkyl groups and/or C3- to C12-cycloalkenyl groups, where the rings may each also be bridged by —(CH2)n— groups, where n=1 to 3, where all OR11 are, independently of one another, OH, C1- to C20-alkoxy groups, C3- to C20-alkenyloxy groups, straight-chain or branched C1- to C20-hydroxyalkoxy groups and/or C3- to C10-cycloalkoxy groups and/or C3- to C12-cycloalkenyloxy groups, where the rings may each also be bridged by —(CH2)n— groups, where n=1 to 3, and/or mono- and/or oligoglycosyl radicals, with the proviso that at least 3 radicals from R1 to R7 are OH and that at least 2 pairs of adjacent —OH groups are present in the molecule, or R2, R5 and R6 are OH and the radicals R1, R3, R4 and R7-10 are H.
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