Abstract: The element comprises: a hollow body; a receptacle (40) for receiving a cosmetic product, housed in the hollow body; a conduit (42) for supplying water into the receptacle (40); a nozzle (50) for dispensing the mixture of water and cosmetic product from the dispensing element. The element comprises an inner water dispensing nozzle (44), connected to the water supply conduit (42), the inner nozzle (44) protruding into the receptacle (40) to define a chamber (46) for mixing water and the cosmetic product contained in the receptacle (40).

Abstract: The element comprises: a hollow body (19); a delivery nozzle (32) for delivering a first liquid carried by the hollow body (19); a dispensing nozzle (50) for dispensing a second liquid carried by the hollow body (19); The dispensing nozzle (50) is suitable for producing droplets having a diameter less than 1 mm, particularly comprised between 1 ?m and 1000 ?m and the delivery nozzle (32) is suitable for producing droplets having a diameter greater than 1 mm, and particularly comprised between 1 mm and 5 mm.

Abstract: The present invention relates to a cosmetic treatment process for keratin fibers which have not been artificially colored, in particular human keratin fibers such as the hair, which consists in using one or more anionic oxidized polysaccharides and in raising the temperature of the keratin fibers.

Abstract: The element comprises: a hollow body; a receptacle (40) for receiving a cosmetic product, housed in the hollow body; a conduit (42) for supplying water into the receptacle (40); a nozzle (50) for dispensing the mixture of water and cosmetic product from the dispensing element. The element comprises an inner water dispensing nozzle (44), connected to the water supply conduit (42), the inner nozzle (44) protruding into the receptacle (40) to define a chamber (46) for mixing water and the cosmetic product contained in the receptacle (40).

Abstract: The element comprises: a hollow body (19); a delivery nozzle (32) for delivering a first liquid carried by the hollow body (19); a dispensing nozzle (50) for dispensing a second liquid carried by the hollow body (19); The dispensing nozzle (50) is suitable for producing droplets having a diameter less than 1 mm, particularly comprised between 1 ?m and 1000 ?m and the delivery nozzle (32) is suitable for producing droplets having a diameter greater than 1 mm, and particularly comprised between 1 mm and 5 mm.

Abstract: The present invention relates to the use as a preserving agent, in particular in cosmetic or dermatological composition, of at least one compound of formula (I): in which:—X represents ?O or —OH;—R1 represents a hydrogen atom or a methyl;—R2 represents a hydrogen atom, a methyl or an ethyl;—R3 represents a C1-C12, saturated or unsaturated, linear hydrocarbon-based radical, optionally substituted with a hydroxyl group (OH); with the exclusion of the compound of formula (I) in which X represents ?O, R1=methyl, R2=H and R3=—(CH2)6—CH3. The invention also relates to certain novel compounds and to the cosmetic or dermatological compositions comprising same.

Abstract: The present invention relates to a cosmetic treatment process for keratin fibres which have not been artificially coloured, in particular human keratin fibres such as the hair, which consists in using one or more anionic oxidized polysaccharides and in raising the temperature of the keratin fibres.

Abstract: The present invention relates to the use as a preserving agent, in particular in cosmetic or dermatological composition, of at least one compound of formula (I): in which:—X represents ?O or —OH;—R1 represents a hydrogen atom or a methyl;—R2 represents a hydrogen atom, a methyl or an ethyl;—R3 represents a C1-C12, saturated or unsaturated, linear hydrocarbon-based radical, optionally substituted with a hydroxyl group (OH); with the exclusion of the compound of formula (I) in which X represents ?O, R1=methyl, R2=H and R3=—(CH2)6—CH3. The invention also relates to certain novel compounds and to the cosmetic or dermatological compositions comprising same.

Abstract: The present invention relates to a process facilitating the regeneration of a catalyst based on a zeolite, employed in an acylation reaction.

Abstract: The present invention relates to a process facilitating the regeneration of a catalyst based on a zeolite, employed in an acylation reaction.

Abstract: The invention concerns a method of sulphonation characterised in that it consists in contacting a nucleophile whose nucleophilic atom is a nitrogen atom with a reagent comprising by successive or simultaneous addition: a heavy sulphonyl halide (i.e. whose atomic number is not less than that of chlorine), advantageously suphonyl chloride; and an organic base both not capable of alkylation and lipid soluble; and the organic part of said sulphonyl is perfluorinated on the carbon carried by the sulphur. The invention is applicable to organic synthesis.

Abstract: The invention concerns a method of sulphonation characterized in that it consists in contacting a nucleophile whose nucleophilic atom is a nitrogen atom with a reagent comprising by successive or simultaneous addition: a heavy sulphonyl halide (i.e. whose atomic number is not less than that of chlorine), advantageously suphonyl chloride; and an organic base both not capable of alkylation and lipid soluble; and the organic part of said sulphonyl is perfluorinated on the carbon carried by the sulphur. The invention is applicable to organic synthesis.

Abstract: The invention concerns a method of sulphonation characterised in that it consists in contacting a nucleophile whose nucleophilic atom is a nitrogen atom with a reagent comprising by successive or simultaneous addition: a heavy sulphonyl halide (i.e. whose atomic number is not less than that of chlorine), advantageously suphonyl chloride; and an organic base both not capable of alkylation and lipid soluble; and the organic part of said sulphonyl is perfluorinated on the carbon carried by the sulphur. The invention is applicable to organic synthesis.

Abstract: The present invention includes a process for the preparation of a lactam by vapor phase reaction of an aliphatic aminonitrile with water in the presence of a solid catalyst, wherein the catalyst is an alumina having a specific surface, measured by the BET method, greater than or equal to 10 m2/g. The alumina catalyst is further characterized by either: (a) a specific surface less than or equal to 280 m2/g, and a volume of pores with a diameter greater than 500 Å which is greater than or equal to 10 ml/100 g; or (b) a specific surface greater than or equal to 50 m2/g and less than or equal to 280 m2/g, and a volume of pores with a diameter greater than 70 Å which is greater than or equal to 30 m2/g.

Abstract: A process for the preparation of halide compounds, preferably aryl halides, by contacting a gaseous mixture of hydrohalic acid and a compound selected from an aryl halogen formate, an aryl carbonate and equivalents thereof with a Lewis acid catalyst.

Abstract: The present invention concerns a process for acylation of an aromatic compound. The acylation process of the invention consists of reacting the aromatic compound with an acylation agent in the presence of a zeolitic catalyst, and is characterized in that it consists of: mixing the aromatic compound and the acylation compound in any manner; passing said mixture over a catalytic bed comprising at least one zeolite; recirculating the reaction mixture from the catalytic bed over the catalytic bed for a number of times which is sufficient to obtain the desired degree of conversion of the substrate.

Abstract: The present invention relates to a method for the synthesis of a halogen substituted aryl nitrile, where the halogens are selected from Cl, Br, or I, by reacting an aryl dihalide with a halogen/fluoride exchange reactant to produce a halogen substituted aryl fluoride which is then reacted with a fluoride/cyanide exchange reactant to produce the halogen substituted aryl nitrile.

Abstract: The present invention relates to a process for the acylation of an aromatic thioether. In its preferred variant, the invention resides in a process for the condensation of acetic anhydride or acetyl chloride with thioanisole. The process for the acylation of an aromatic thioether according to the invention is characterised in that it consists in reacting said thioether with an acylating agent chosen from the group formed by the halides of carboxylic acids and the anhydrides of carboxylic acids, in the presence of an effective quantity of an acid zeolite.

Abstract: The present invention relates to a process for the hydroxylation of phenolic compounds and, more particularly, to a process for the hydroxylation of phenols and phenolic ethers with hydrogen peroxide. The invention relates to a process for the hydroxylation of phenolic compounds using hydrogen peroxide, said process being characterized in that the reaction is carried out in the presence of an effective quantity of at least one rare earth or bismuth triflate.

Abstract: The present invention concerns a process for the acylation of an aromatic ether.Preferably the invention relates to a process for the acylation of a substituted aromatic ether, in particular veratrol.The acylation process of the invention consists of reacting the ether with an acylation agent in the presence of a zeolitic catalyst, and is characterized in that the acylation reaction is carried out in the presence of an effective quantity of a catalyst comprising a faujasite type zeolite or a Y zeolite with the following physico-chemical characteristics:an atomic ratio denoted "global Si/Me.sup.1 " between the number of atoms of the element silicon and the number of atoms of every trivalent element Me.sup.1 contained in the zeolite in the range 2.4 to 90, preferably in the range 2.4 to 75, and more preferably in the range 2.4 to 60;an Me.sup.2 alkali metal content such that the atomic ratio Me.sup.2 /Me.sup.1(IV) between the number of atoms of alkali metal Me.sup.