- Preparation method of cyanoacrylate ultraviolet light absorber
-
The invention provides a preparation method of a cyanoacrylate ultraviolet light absorber. Benzophenone compounds represented by general formula I with cyanoacetate under a weakly alkaline condition by using activated carbon grafted acidic ionic liquid as a catalyst to generate a compound represented by general formula II. The preparation method of the cyanoacrylate ultraviolet light absorber adopts the activated carbon grafted acidic ionic liquid catalyst to replace acetic acid, so that the preparation method has the advantages of easiness in recycling of the catalyst, high product yield, fewthree wastes, and convenience in post-treatment, and is an economical, practical and environment-friendly technology.
- -
-
Paragraph 0109-0110
(2020/04/29)
-
- Method to reduce substantivity of cloth staining caused by sunscreens
-
Suggested is a cosmetic and/or pharmaceutical preparation, especially dermatological preparation and its used for the protection of the human skin and human hair against the harmful effects of ultraviolet solar radiation comprising the water soluble UVA absorbing substance disodium phenyl dibenzimidazole tetrasulfonate, wherein the preparation is free from the UVA filters selected from the group consisting of 2,4-bis[{(4-(2-ethylhexyloxy)-2-hydroxy}phenyl]--6-(4-methoxyphenyl)-1,3,5-triazine, (Tinosorb?S), hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate (Uvinul? A Plus), 2-hydroxy-4-methoxybenzo-phenone (Benzophenone-3, Oxybenzone, Neo Heliopan? BB), Tris-Biphenyl Triazine (Tinosorb? A2B) or mixtures thereof.
- -
-
-
- A NOVEL PROCESS FOR THE PREPARATION OF 2-CYANO- 3,3- DIARYLACRYLATES
-
The present invention relates to a novel process for preparation of 2-Cyano-3,3- diarylacrylates of Formula I by the Knoevenagel condensation of Cyanoacetic esters and Arylketones using ammonium compound and acetic acid and without the use of organic solvent.
- -
-
Page/Page column 9; 10
(2014/11/13)
-
- Cosmetic compositions
-
Suggested is a cosmetic compositions comprising (a) a crosspolymer obtained from copolymerisation of at least two different polyols and at least one dicarboxylic acid and (b) at least one fragrance.
- -
-
-
- A composition for lightening skin and hair
-
Suggested is a composition comprising (a) sclareolide and (b1) at least one tyrosinase inhibitor; and/or (b2) at least one sun protection factor; and/or (b3) at least one anti-oxidants; and/or (b4) at least one anti-inflammatory agent; and/or (b5) at least one desquamating agent.
- -
-
-
- ALPHA-AMINO ACID DERIVATIVES FOR IMPROVING SOLUBILITY
-
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.
- -
-
-
- USE OF CHROMAN-4-ONE DERIVATIVES
-
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.
- -
-
-
- Method of Increasing the Tanning Effect of Self-tanning Substances
-
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.
- -
-
-
- UV FILTER CAPSULE
-
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.
- -
-
-
- TYROSINASE INHIBITORS
-
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.
- -
-
-
- UVA FILTERS BASED ON ASCORBIC ACID DERIVATIVES
-
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.
- -
-
-
- USE OF ASCORBIC ACID DERIVATIVES FOR THE FUNCTIONALIZATION OF MATRICES
-
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.
- -
-
-
- UVB FILTER BASED ON ASCORBIC ACID DERIVATIVES
-
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.
- -
-
-
- AHR MEDIATORS
-
The invention relates to a method for finding and assessing agonists [and] antagonists of the aryl hydrocarbon receptor (Ah receptor; AhR), to the agonists and antagonists themselves and to uses thereof
- -
-
-
- UV FILTER CAPSULE CONTAINING AN AMINO-SUBSTITUTED HYDROXYBENZOPHENONE
-
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.
- -
-
-
- CHROMEN-4-ONE DERIVATIVES AS SELF-TANNING SUBSTANCE
-
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.
- -
-
-
- USE OF FLAVONOIDS
-
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.
- -
-
-
- ANTIOXIDANTS
-
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.
- -
-
-
- PROCESS FOR THE MANUFACTURE OF SUBSTITUTED 2-CYANO CINNAMIC ESTERS
-
The invention relates to an improved process for the manufacture of substituted 2-cyanocinnamic esters. This novel economical process provides products in high purity and yields.
- -
-
Page/Page column 9
(2008/12/07)
-
- Flavonoids as Synergists for Enhancing the Action of Self-Tanning Substances
-
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.
- -
-
-
- Flavonoid complexes with cyclodextrins
-
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.
- -
-
-
- Chromone complexes
-
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.
- -
-
-
- Preparation having antioxidant properties
-
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.
- -
-
-
- Novel indanylidene compounds
-
Novel indanylidene compounds can be used as UV-A filters in cosmetic compositions for protecting skin and hair and for technical applications.
- -
-
-
- Indanylidene compounds, a process for their preparation and their use as UV absorbers
-
Compounds of the formula I according to claim 1 are excellently suitable as UV absorbers for use in cosmetic products, in particular sunscreen compositions, daytime care products and hair care products. They are furthermore suitable for protection of products.
- -
-
-
- Self-tanning cosmetic compositions containing dihydroxyacetone
-
There is disclosed an artificial tanning composition, preferably in the form of a gel, comprising a cosmetically effective amount of dihydroxyacetone (DHA) as an artificial tanning agent, an alcoholic phase and a hydroxypropylcellulose thickener. The composition may further comprise a glycol, preferably selected from one or more of ethoxydiglycol, propylene glycol and butylene glycol. The composition may further comprise ingredients miscible with oil. Preferably the composition is substantially transparent to visible light, and may further comprise a colouring agent, which is preferably oil soluble, to tint the composition. There is also disclosed a method of preparing artificial tanning compositions comprising the steps of: a) dissolving dihydroxyacetone in a minimum amount of water, b) adding alcohol to the aqueous solution from step a), c) dispersing hydroxypropylcellulose in the alcoholic mixture from step b), d) optionally, heating and then cooling to ambient temperature any remaining ingredients; and e) optionally, adding the remaining ingredients treated as in step d) to the alcoholic mixture from step c).
- -
-
-
- Photostable cosmetic screening composition containing a UV-A screening agent and an alkyl β, β-diphenylacrylate or α-cyano-β,β-diphenylacrylate
-
A photostable cosmetic screening composition and process for protection of the human epidermis against UV rays of wavelengths between 280 and 380 nm, the composition having, in a cosmetically acceptable vehicle containing at least one fatty phase, 1 to 5% by weight of a dibenzoylmethane derivative and at least 1% by weight of an alkyl β-β-diphenylacrylate or α-cyano-β-β-diphenylacrylate of formula (I), the mole ratio of the compound of formula (I) to the dibenzoylmethane derivative being not less than 0.8.
- -
-
-
- Process for the preparation of 2-cyano-3,3-diarylacrylates
-
The preparation of 2-cyano-3,3-diarylacrylates I STR1 (in which Ar1 and Ar2 are aromatic radicals and R is an aliphatic radical having from 3 to 30 carbon atoms) by reacting a 2-cyano-3,3-diarylacrylate II STR2 (in which R1 is methyl or ethyl) with an alcohol III in the presence of a basic catalyst with removal of the alcohol R1 -OH formed. The esters of formula I are valuable UV absorbing agents for, say, plastics materials.
- -
-
-
