公开(公告)号：US20210155571A1

公开(公告)日：2021-05-27

申请号：US16613456

申请日：2018-05-17

申请人： Arkema France

发明人： Guillaume LE ,  Julien JOUANNEAU ,  Jérome AMSTUTZ

IPC分类号： C07C45/80 ,  C07C45/46 ,  C08G65/40 ,  C07C45/79

摘要： A method for manufacturing 1,4-bis(4-phenoxybenzoyl)benzene, including: reacting terephthaloyl chloride with diphenyl ether in a reaction solvent and in the presence of a Lewis acid, so as to obtain a product mixture comprising a 1,4-bis(4-phenoxybenzoyl)benzene-Lewis acid complex; putting the product mixture in contact with a protic solvent, so as to obtain a first phase containing the Lewis acid and a second phase containing 1,4-bis(4-phenoxybenzoyl)benzene; subjecting at least the second phase to a solid/liquid separation step by centrifugal filtration, so as to recover solid 1,4-bis(4-phenoxybenzoyl)benzene.

公开(公告)号：US20210155567A1

公开(公告)日：2021-05-27

申请号：US16625816

申请日：2018-07-16

申请人： Arkema France

发明人： Bertrand COLLIER ,  Dominique DEUR-BERT ,  Anne PIGAMO ,  Laurent WENDLINGER

IPC分类号： C07C17/20 ,  C07C17/25 ,  B01J27/132 ,  B01J23/26

摘要： The present invention relates to a process for the gas-phase production of 2,3,3,3-tetrafluoropropene, comprising the steps: i) providing a composition A comprising 2-chloro-3,3,3-trifluoropropene and/or 2,3-dichloro-1,1,1-trifluoropropane and/or 2-chloro-1,1,1,2-tetrafluoropropane or a composition B comprising 1,1,1,2,2-pentafluoropropane and/or 1,1,1,2,3-pentafluoropropane; ii) placing said composition A in contact with hydrofluoric acid in the presence of a catalytic composition comprising a chromium-based catalyst or placing said composition B in contact with a catalytic composition comprising a chromium-based catalyst to produce a composition C comprising 2,3,3,3-tetrafluoropropene, characterized in that step ii) is performed at a temperature of between 310° C. and 450° C. and in that the temperature of step ii) is controlled so as not to exceed 450° C.; and when said catalyst is deactivated, the temperature of step ii) is increased in increments from 0.5° C. to 20° C. on condition that the temperature does not exceed 450° C.

公开(公告)号：US11015071B2

公开(公告)日：2021-05-25

申请号：US16097728

申请日：2017-05-02

申请人： Arkema France

发明人： Benoît Brule ,  Jérôme Amstutz ,  Guillaume Le ,  Julien Jouanneau

IPC分类号： C09D11/102 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/153 ,  C08G65/40 ,  C08G65/46 ,  C08L71/00 ,  C08G8/02 ,  B29K71/00

摘要： Provided is a composition suitable for a process of building a three-dimensional object layer-by-layer by electromagnetic radiation-generated sintering, including at least one poly(aryl-ether-ketone) (PAEK), where the composition has an aromatic ether content of from 0 and 0.4% by mass, based on the total mass of the composition, and an aluminium mass content of lower than 1000 ppm. The composition may be used in process for building an object comprising sintering the composition with electromagnetic radiation. The present invention also includes a three-dimensional object obtained by such a process. A process for preparing the composition is also provided.

公开(公告)号：US20210146658A1

公开(公告)日：2021-05-20

申请号：US17055299

申请日：2019-05-14

申请人： Arkema France

发明人： Jerome CHAUVEAU ,  Jerome RONDIN ,  Florent ABGRALL

IPC分类号： B32B15/085 ,  B32B1/08 ,  B32B15/20 ,  B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B32B27/26 ,  B32B7/12 ,  H01B3/44 ,  H01B7/28

摘要： The invention relates to the field of cables for an offshore environment (known as “downhole cables”). More particularly, the invention relates to an electrical cable having an insulating multilayer structure based on fluorinated polymers and polyolefins. This structure is made up of multiple layers that are intercohesive and obtained by coextrusion. The invention also relates to the use of said cable as a drilling material for extracting petroleum or natural gas.

公开(公告)号：US11008268B2

公开(公告)日：2021-05-18

申请号：US16757649

申请日：2018-11-05

申请人： Arkema France

发明人： Dominique Deur-Bert ,  Laurent Wendlinger

IPC分类号： C07C17/20 ,  C07C21/18

摘要： The present invention relates to a process for producing a fluorinated compound, comprising the steps of providing a gas stream comprising hydrofluoric acid; providing at least one liquid stream of chlorinated compound; spraying said at least one liquid stream of chlorinated compound to form droplets; vaporizing said droplets produced in step c) by mixing with said gas stream, the resulting mixture being a gas mixture; catalytic reaction of the chlorinated compound with the hydrofluoric acid in the gas phase and collection of a product stream; characterized in that the droplets produced in step c) have a mean diameter of less than 500 μm. The invention also relates to a facility for performing this process.

公开(公告)号：US11001664B2

公开(公告)日：2021-05-11

申请号：US16325770

申请日：2017-07-06

申请人： ARKEMA FRANCE

发明人： William C. Wolf ,  David Shin-Ren Liu ,  Marie Elizabeth Sullivan Malervy

IPC分类号： C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C08F299/02 ,  B33Y70/00 ,  C08F285/00 ,  C08F290/06 ,  B29C64/264 ,  B29C64/112 ,  C08F2/48 ,  C08F220/18 ,  C08F220/54 ,  C08K5/06 ,  C08K5/07 ,  C08K5/09 ,  C08K5/5397 ,  C08L51/00 ,  B33Y10/00 ,  C08L67/00 ,  C08L71/00 ,  C08L75/04

摘要： Embodiments described herein are directed to polymerization-induced phase-separating (PIPS) compositions for enhancement of impact resistance and rheological properties in photocurable resins for 3D printing, such as for inks, coatings and adhesives. Embodiments described herein are advantageous with respect to properties such as impact resistance, shear adhesion and cohesive strength. The PIPS compositions may include components X, Y and Z, wherein X includes an acrylic based monomer; Y includes a copolymer of block A and block B; and Z includes a multifunctional cross-linker. Methods of using the PIPS compositions are also described. Also described are methods of screening potential acrylic based monomeric or oligomeric additives that yield improved impact resistance.

公开(公告)号：US11001546B2

公开(公告)日：2021-05-11

申请号：US16965638

申请日：2019-02-01

申请人： Arkema France

发明人： Dominique Deur-Bert ,  Laurent Wendlinger ,  Béatrice Berger

IPC分类号： C07C21/18 ,  C07C17/383

摘要： The present invention relates to an azeotropic or quasi-azeotropic composition comprising hydrogen fluoride, 2,3,3,3-tetrafluoropropene and 1,1,1,2,2-pentafluoropropane, characterized in that said composition has a boiling point above 40° C.

公开(公告)号：US20210130612A1

公开(公告)日：2021-05-06

申请号：US16616992

申请日：2018-05-31

申请人： Arkema France

发明人： Philippe Blondel ,  Thierry Briffaud

IPC分类号： C08L77/08 ,  F16L11/06 ,  C08G69/14 ,  C08G69/36 ,  C08L23/08 ,  C08L51/06 ,  C08K5/00

摘要： The invention relates to the use of a composition comprising at least one polyamide, at least one of said polyamides being a semi-crystalline copolyamide comprising at least one minority monomer unit resulting from the polycondensation of at least one diamine with at least one polymerised fatty acid, particularly a fatty acid dimer, or at least one diamine dimer with at least one dicarboxylic acid, or at least one amino acid dimer, or the mixtures thereof, as a sealing layer in a pipe containing a cooling liquid.

公开(公告)号：US10988423B2

公开(公告)日：2021-04-27

申请号：US16742518

申请日：2020-01-14

申请人： Arkema France

发明人： David Andre ,  Dominique Deur-Bert ,  Dominique Garrait ,  Anne Pigamo ,  Laurent Wendlinger

IPC分类号： C07C17/20 ,  B01J38/46 ,  B01J23/92 ,  B01J37/14 ,  B01J37/18 ,  B01J38/10 ,  B01J38/12 ,  B01J27/32 ,  B01J37/12 ,  B01J37/16 ,  B01J27/132 ,  C07C17/21 ,  B01J23/26 ,  B01J37/26 ,  B01J38/42 ,  B01J38/04 ,  B01J37/24 ,  C07C17/087 ,  C07C19/08

摘要： A process for the fluorination of a chlorinated C3 alkane or alkene compound having at least one chlorine atom into a fluorinated C3 alkane or alkene compound having at least one fluorine atom includes the following steps: a) contacting, in a reactor, the chlorinated compound with hydrogen fluoride in gas phase in the presence of a fluorination catalyst to produce a fluorinated compound, and b) regenerating the fluorination catalyst used in step a). The step (b) of regenerating the fluorination catalyst comprises (c) the treatment of said fluorination catalyst with an oxidizing agent-containing gas flow to form an oxidized fluorination catalyst, and (d) the treatment of the oxidized fluorination catalyst obtained in step (c) with a gaseous mixture comprising a reducing agent and an inert gas. The catalyst regenerated in step b) is reused in step a) and the reducing agent is selected from C1-C10 hydrohalocarbons.

公开(公告)号：US10987639B2

公开(公告)日：2021-04-27

申请号：US16073855

申请日：2017-02-01

申请人： Arkema France ,  Polymem

发明人： Walter Phillip Kosar ,  Olivier Lorain ,  Sébastien Marcellino ,  François Beaume ,  Pierre Gerard

IPC分类号： B01D71/80 ,  C08F293/00 ,  B01D71/40 ,  C08L27/16 ,  B01D61/14 ,  B01D71/32 ,  C08F220/18 ,  C08F220/28

摘要： Provided is a an amphiphilic diblock copolymer including from 40 to 60% by weight, relative to the weight of the copolymer, of a hydrophilic block including a unit derived from an n-butyl acrylate monomer and a derived from a hydroxyethyl methacrylate monomer. The copolymer also includes from 40 to 60% by weight, relative to the weight of the copolymer, of a hydrophobic block including at least one unit derived from a methyl methacrylate monomer. Also provided is a polymeric membrane that includes the block copolymer and a hydrophobic polymeric matrix. This membrane is useful for treating an effluent, for example, water.