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Patent Agency Ranking
公开(公告)号：US20210155571A1
公开(公告)日：2021-05-27
申请号：US16613456
申请日：2018-05-17
Applicant: Arkema France
Inventor： Guillaume LE , Julien JOUANNEAU , Jérome AMSTUTZ
Abstract: 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.
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公开(公告)号：US20180334418A1
公开(公告)日：2018-11-22
申请号：US15981284
申请日：2018-05-16
Applicant: ARKEMA FRANCE
Inventor： Julien JOUANNEAU , Guillaume LE , Jérome AMSTUTZ
CPC classification number: C07C45/46 , C07C45/80 , C08G61/127 , C08G65/4012 , C08G65/4093 , C08G2650/62 , C07C49/84
Abstract: A method for manufacturing 1,4-bis(4-phenoxybenzoylbenzene), including: providing a reactant mixture including terephthaloyl chloride and diphenyl ether in a solvent; adding a Lewis acid to the reactant mixture, so as to obtain a product mixture; wherein the temperature of the reactant mixture is greater than 5° C. during at least part of the step of adding the Lewis acid to the reactant mixture.
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公开(公告)号：US20200062683A1
公开(公告)日：2020-02-27
申请号：US16609648
申请日：2018-05-16
Applicant: Arkema France
Inventor： Julien JOUANNEAU , Guillaume LE , Jérome AMSTUTZ
Abstract: The invention relates to a method for manufacturing 1,4-bis(4-phenoxybenzoylbenzene), comprising: providing a reactant mixture comprising terephthaloyl chloride and diphenyl ether in a solvent; adding a Lewis acid to the reactant mixture, so as to obtain a product mixture; wherein the temperature of the reactant mixture is greater than 5° C. during at least part of the step of adding the Lewis acid to the reactant mixture.
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公开(公告)号：US20210155570A1
公开(公告)日：2021-05-27
申请号：US16613454
申请日：2018-05-17
Applicant: Arkema France
Inventor： Julien JOUANNEAU , Jérome AMSTUTZ , Guillaume VINCENT
Abstract: 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; heating at least the second phase up to a maximum temperature, followed by cooling the second phase down to a separation temperature; subjecting at least the second phase to a solid/liquid separation step at the separation temperature, so as to recover solid 1,4-bis(4-phenoxybenzoyl)benzene.
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公开(公告)号：US20200165386A1
公开(公告)日：2020-05-28
申请号：US16630209
申请日：2018-07-16
Applicant: Arkema France
Inventor： Guillaume LE , Jérome AMSTUTZ , Christophe CAREMIAUX
Abstract: A method for the manufacture of polyether ketone ketone (PEKK), including: (i) reacting 1,4-bis(4-phenoxybenzoyl)benzene and/or diphenylether with at least one difunctional aromatic acyl chloride, in a reaction solvent and in presence of a Lewis acid, to obtain a product mixture comprising a PEKK-Lewis acid complex; (ii) contacting the obtained product mixture with a protic solvent, so as to form a dispersion that includes a liquid phase including Lewis acid and a solid phase including PEKK; and (iii) separating the solid phase from the liquid phase by centrifugal filtration, so as to recover a crude PEKK and a effluent containing Lewis acid, wherein step (iii) includes a step of centrifugal filtration.
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