NEW PROCESS FOR PREPARING BIPHENYL COMPOUNDS

The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

RECYCLABLE CROSS-LINKED DIENE ELASTOMERS COMPRISING FURANYL GROUPS AND PRECURSORS THEREOF

Recyclable cross-linked diene elastomers comprising furanyl groups and precursors thereof The present invention concerns new precursors of recyclable cross-linked diene elastomers comprising chain-end units with furanyl groups, their use in the preparation of said recyclable elastomers and their process of preparation. The invention also concerns new recyclable cross-linked diene elastomers, their preparation process and their uses.

ENZYMATIC PRODUCTION OF GLYCOSYLATED SYNTHONS

La présente invention est relative à un procédé de fabrication d'un synthon glycosylé, ou monomère, comprenant au moins une étape de mise en présence d'au moins une glycane-saccharase avec au moins un synthon hydroxylé et au moins un saccharose. Elle concerne également un procédé de fabrication d'un glyco(co)polymère comprenant la polymérisation d'au moins 2 monomères obtenus, indépendamment, à l'issue du procédé de glycosylation enzymatique selon l'invention ainsi qu'un procédé de fabrication d'un glyco(co)polymère, de préférence à blocs, comprenant le couplage d'au moins 2 monomères obtenus, indépendamment, à l'issue du procédé de glycosylation enzymatique selon l'invention.

NOVEL SUPPORTED ANTHRAQUINONIC CATALYSTS AND USES OF SAME FOR KRAFT COOKING

The present invention relates to a supported anthraquinonic catalyst obtainable by radical polymerization of a reaction mixture containing: - styrene; - at least one initiator generating free radicals; - at least one at least difunctional crosslinking agent; - at least one expanding agent; and - at least one anthraquinonic styrene monomer having Formula (I), wherein n is a whole number from 1 to 5.

NEW PHENOLIC POLYMERS AND PREPARATION PROCESSES THEREOF

The present invention concerns the use of a compound having the following formula (I), for the preparation of a polymer. The present invention also concerns the polymers obtained from polymerization of compound of formula (I), and their processes of preparation.

RECYCLABLE CROSS-LINKED DIENE ELASTOMERS COMPRISING FURANYL GROUPS AND PRECURSORS THEREOF

The present invention concerns new precursors of recyclable cross-linked diene elastomers comprising at least one furanyl group along the chain and comprising chain-end units with furanyl groups, their use in the preparation of said recyclable elastomers and their process of preparation. The invention also concerns new recyclable cross-linked diene elastomers, their preparation process and their uses.

Chemical product identification device for container e.g. phial, has removable neck label, pasted on inner side of flange, installed on neck of phial, where label is immobilized using threaded closure

Dispositif d'identification de produits chimiques contenus dans un récipient (7), caractérisé en ce qu'il est constitué d'une collerette (1) amovible à bord rabattu (3), mis en place sur le col du récipient sous les moyens de fermeture (8) de celui-ci.

Enzymatic Production of Glycosylated Synthons

The present invention relates to a method for producing a glycosylated synthon or a monomer. Said method includes at least one step of placing at least one glycan-saccharase in the presence of at least one hydroxylated synthon and at least one saccharose. The invention also relates to a method for producing a glyco(co)polymer, including polymerizing at least two monomers separately obtained from the enzymatic glycosylation method according to the invention, and to a method for producing a glyco(co)polymer, preferably a block glyco(co)polymer, including coupling at least two monomers separately obtained from the enzymatic glycosylation method according to the invention.

Enzymatic production of glycosylated synthons

The present invention relates to a method for producing a glycosylated synthon or a monomer. Said method includes at least one step of placing at least one glycan-saccharase in the presence of at least one hydroxylated synthon and at least one saccharose. The invention also relates to a method for producing a glyco(co)polymer, including polymerizing at least two monomers separately obtained from the enzymatic glycosylation method according to the invention, and to a method for producing a glyco(co)polymer, preferably a block glyco(co)polymer, including coupling at least two monomers separately obtained from the enzymatic glycosylation method according to the invention.

New process for preparing biphenyl compounds

The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

NEW SUPPORTED ANTHRAQUINONIC CATALYSTS AND THEIR USES FOR KRAFT COOKING

La présente invention concerne un catalyseur anthraquinonique supporté, susceptible d'être obtenu par polymérisation radicalaire d'un mélange réactionnel comprenant du styrène ; au moins un amorceur générateur de radicaux libres ; au moins un agent de réticulation au moins difonctionnel, au moins un agent porogène ; et au moins un monomère styrénique anthraquinonique de formule (I) dans laquelle n est un nombre entier variant de 1 à 5.

PLURIEPOXIDE BIPHENYL COMPOUNDS, PREPARATION AND USES

La présente invention a pour objet les composés biphényles pluriépoxydés répondant à la formule (I) ci-après : dans laquelle R, R1, R2 et R3 sont tels que définis dans la description, ainsi que les mélanges d'au moins deux desdits composés. Ces composés biphényles pluriépoxydés conviennent parfaitement comme principaux constituants de résines époxy thermodurcissables, i.e. comme précurseurs de polyépoxydes. Ils constituent des substituts avantageux au diglycidyl éther de bisphénol-A. The subject of the present invention is the biphenyl compounds containing the formula (I) below, in which R, R1, R2 and R3 are as defined in the description, as well as mixtures of at least two of said compounds. These polyepoxidized biphenyl compounds are ideally suited as main constituents of thermosetting epoxy resins, i.e. as polyepoxide precursors. They are advantageous substitutes for the diglycidyl ether of bisphenol-A.

Recyclable cross-linked diene elastomers comprising furanyl groups and precursors thereof

The present invention concerns new precursors of recyclable cross-linked diene elastomers comprising at least one furanyl group along the chain and comprising chain-end units with furanyl groups, their use in the preparation of said recyclable elastomers and their process of preparation. The invention also concerns new recyclable cross-linked diene elastomers, their preparation process and their uses.

PRODUCTION OF GLYCOSYL SYNTHONS BY ENZYMATIC ROUTE

La présente invention est relative à un procédé de fabrication d'un synthon glycosylé, ou monomère, comprenant au moins une étape de mise en présence d'au moins une glycane-saccharase avec au moins un synthon hydroxylé et au moins un saccharose. Elle concerne également un procédé de fabrication d'un glyco(co)polymère comprenant la polymérisation d'au moins 2 monomères obtenus, indépendamment, à l'issue du procédé de glycosylation enzymatique selon l'invention ainsi qu'un procédé de fabrication d'un glyco(co)polymère, de préférence à blocs, comprenant le couplage d'au moins 2 monomères obtenus, indépendamment, à l'issue du procédé de glycosylation enzymatique selon l'invention. The present invention relates to a process for manufacturing a glycosylated synthon, or monomer, comprising at least one step of bringing at least one glycan-sucrase into contact with at least one hydroxylated synthon and at least one sucrose. It also relates to a process for manufacturing a glyco (co) polymer comprising the polymerization of at least 2 monomers obtained, independently, at the end of the enzymatic glycosylation process according to the invention, as well as a process for manufacturing a glyco (co) polymer, preferably with blocks, comprising the coupling of at least 2 monomers obtained, independently, at the end of the enzymatic glycosylation process according to the invention.

Polyepoxidized biphenyl compounds, preparation and uses

A multi-epoxidized biphenyl compound has the formula (I) belowwherein R, R1, R2 and R3 are as defined in the description, as well as mixtures of at least two of the compounds. These multi-epoxidized biphenyl compounds are fully suitable as main constituents of thermosetting epoxy resins, i.e. as polyepoxides precursors. They are beneficial substitutes for bisphenol A diglycidyl ether.

New process for preparing biphenyl compounds

The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

New process for preparing biphenyl compounds

The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

New process for preparing biphenyl compounds

The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

Process for preparing biphenyl compounds

The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

Method for obtaining a fibrous preparation for immersion-resistant opaque paper

Composes biphenyle difonctionnels, preparation et utilisations

La présente invention a pour objet les composés biphényle difonctionnels répondant à la formule (I) : dans laquelle Alk, Alk' et R sont tels que définis dans la description. Ces composés conviennent comme durcisseurs de résines thermodurcissables, notamment de résines époxy.

Composes biphenyle pluriepoxydes, preparation et utilisations

Composes biphenyle pluriepoxydes, preparation et utilisations

Procede d'obtention d'une preparation fibreuse pour papier opaque resistant a l'immersion

Procédé d'obtention d'une préparation fibreuse pour papier opaque résistant à l'immersion La présente invention a pour objet un procédé d'obtention d'une préparation fibreuse pour fabriquer un papier présentant une hydrophobie et une opacité importantes à l'état sec ou humide remarquable en ce qu'il comporte au moins les étapes suivantes : - mise en suspension de fibres dans de l'eau, - ajout de sels de calcium dans lesdites fibres, - ajout d'une source de sels de carbonates sous forme d'une solution aqueuse, - agitation du mélange obtenu pendant un temps suffisant pour permettre la précipitation de particules de carbonate de calcium, - ajout d'une solution de sels d'acide gras chauffée à une température correspondant à la température de micellisation desdits sels d'acides gras et tenant compte de la concentration micellaire critique desdits sels d'acides gras, - agitation du mélange ainsi obtenu pendant un temps suffisant pour permettre l'adsorption des acides gras à la surface des particules de carbonate de calcium et obtenir la préparation fibreuse souhaitée.

Procede d'obtention d'une preparation fibreuse pour papier opaque resistant a l'immersion

Procédé d'obtention d'une préparation fibreuse pour papier opaque résistant à l'immersion La présente invention a pour objet un procédé d'obtention d'une préparation fibreuse pour fabriquer un papier présentant une hydrophobie et une opacité importantes à l’état sec ou humide remarquable en ce qu'il comporte au moins les étapes suivantes :- mise en suspension de fibres dans de l’eau,- ajout de sels de calcium dans lesdites fibres,- ajout d’une source de sels de carbonates sous forme d’une solution aqueuse,- agitation du mélange obtenu pendant un temps suffisant pour permettre la précipitation de particules de carbonate de calcium,- ajout d’une solution de sels d’acide gras chauffée à une température correspondant à la température de micellisation desdits sels d’acides gras et tenant compte de la concentration micellaire critique desdits sels d’acides gras,- agitation du mélange ainsi obtenu pendant un temps suffisant pour permettre l’adsorption des acides gras à la surface des particules de carbonate de calcium et obtenir la préparation fibreuse souhaitée.

Method for obtaining a fibrous preparation for immersion-resistant opaque paper

The present invention relates to a method for obtaining a fibrous preparation for manufacturing a paper having significant water repellency and opacity in the dry or wet state, characterised in that it comprises at least the following steps: - suspending fibres in water, - adding calcium salts to the fibres, - adding a source of carbonate salts in the form of an aqueous solution, - stirring the resulting mixture for a time sufficient to allow calcium carbonate particles to be precipitated, - adding a solution of fatty acid salts heated to a temperature which corresponds to the micellisation temperature of the fatty acid salts and takes into account the critical micellar concentration of the fatty acid salts, - stirring the mixture thus obtained for a time sufficient to allow the fatty acids to be absorbed at the surface of the calcium carbonate particles and to obtain the desired fibrous preparation.

Method for obtaining a fibrous preparation for immersion-resistant opaque paper

A method for obtaining a fibrous preparation for manufacturing a paper having significant water repellency and opacity in the dry or wet state. Fibres are suspended in water; calcium salts are added to the fibres; a source of carbonate salts in the form of an aqueous solution are added and the resulting mixture is stirred for a time sufficient to allow calcium carbonate particles to be precipitated. A solution of fatty acid salts heated to a temperature which corresponds to the micellisation temperature of said fatty acid salts is added and takes into account the critical micellar concentration of the fatty acid salts. The mixture is stirred thus obtained for a time sufficient to allow the fatty acids to be absorbed at the surface of the calcium carbonate particles and to obtain the desired fibrous preparation.

Composes biphenyle difonctionnels, preparation et utilisations

Processo de despolimerização de lignina

processo de despolimerização de lignina por meio d e lacases a presente invenção refere-se a um processo para despolimerização de lignina, compreendendo uma etapa de oxidação de lignina não fenólica mediante a colocação em contato, em pelo menos um solvente, de lignina não fenólica, lacase, um mediador redox e uma fonte de oxigênio, sendo dessa forma obtida uma mistura compreendendo lignina não fenólica oxidada, e uma etapa de despolimerização da lignina não fenólica oxidada resultante, mediante adição de um agente oxidante, a dita lignina não fenólica sendo obtida por funcionalização de funções fenol da dita lignina fenólica.

Procede d'obtention d'une preparation fibreuse pour papier opaque resistant a l'immersion