公开(公告)号：US20210363088A1

公开(公告)日：2021-11-25

申请号：US17291679

申请日：2019-11-07

Applicant: Arkema France

Inventor： Julien JOUANNEAU ,  Guillaume LE ,  Martin HERBLOT

IPC: C07C45/46

Abstract: A method for manufacturing 1,4-bis(4-phenoxybenzoyl)benzene, including: providing a solvent, a Lewis acid, a first reactant and a second reactant, wherein the first reactant and the second reactant are respectively terephthaloyl chloride and diphenyl ether, or reversely; mixing the first reactant in the solvent to make a starting mixture; and, adding the second reactant to the starting mixture; wherein the Lewis acid is mixed, at least partly, to the starting mixture before adding the second reactant to the starting mixture, and/or wherein the Lewis acid is mixed, at least partly, with the second reactant and added together to the starting mixture, and wherein the temperature of the starting mixture is greater than 5° C. during at least part of the step of adding the second reactant to the starting mixture; so as to obtain a product mixture comprising a 1,4-bis(4-phenoxybenzoyl)benzene-Lewis acid complex.

公开(公告)号：US20230174498A1

公开(公告)日：2023-06-08

申请号：US17998972

申请日：2021-05-14

Applicant: ARKEMA FRANCE

Inventor： Martin HERBLOT ,  Julien JOUANNEAU ,  Guillaume LE

IPC: C07D311/86 ,  C09K11/06

CPC classification number: C07D311/86 ,  C09K11/06 ,  C09K2211/1018

Abstract: A xanthene derivative of formula I or of formula II. A mixture including the xanthene derivative of formula I or of formula II. A process for preparing the xanthene derivative process involving reacting a compound of formula (III) with a compound of formula (IVa) or (IVb), in the presence of a Lewis acid. A process for preparing the mixture including the xanthene derivative of formula I or of formula II. Uses of the xanthene derivative of formula I or of formula II.

公开(公告)号：US20250145763A1

公开(公告)日：2025-05-08

申请号：US18503546

申请日：2023-11-07

Applicant: ARKEMA FRANCE

Inventor： Guillaume LE ,  Laura LUIZ ,  Martin HERBLOT ,  Jérôme AMSTUTZ

IPC: C08G61/12

Abstract: The invention relates to a process for manufacturing a polyether ketone ketone, which involves placing in contact an aromatic ether which is diphenyl ether, 1,3-bis(4-phenoxybenzoyl)benzene, 1,4-bis(4-phenoxybenzoyl)benzene or a mixture thereof, an acyl chloride which is isophthaloyl chloride, terephthaloyl chloride, or a mixture thereof, a Lewis acid, and a first fraction s1 of a reaction solvent, so as to form a premix at a temperature T0 less than or equal to 25° C. and placing the premix formed at T0 in contact with a fraction s2 of the reaction solvent, the fraction s2 of reaction solvent being preheated, so as to form a reaction mixture heated to a temperature T1.