公开(公告)号：US20180029962A1

公开(公告)日：2018-02-01

申请号：US15551789

申请日：2016-02-15

Applicant: ARKEMA FRANCE

Inventor： Dominique GARRAIT ,  David ANDRE ,  Abdelatif BABA-AHMED ,  Charlotte HERDT

IPC: C07C17/383 ,  C07C17/386

CPC classification number: C07C17/383 ,  C07C17/386 ,  C07C19/12 ,  C07C21/073

Abstract: The invention relates to the separation of a mixture comprising 2-chloro-1,1-difluoroethane (R142) and trans-dichloroethylene (TDCE) by extractive distillation and more particularly to a separation process wherein the TDCE is removed selectively by extractive distillation, thus leading to purified 2-chloro-1,1-difluoroethane.

公开(公告)号：US20200002253A1

公开(公告)日：2020-01-02

申请号：US16333600

申请日：2017-09-25

Applicant: ARKEMA FRANCE

Inventor： Dominique GARRAIT ,  Charlotte HERDT ,  Camille SCHERPEREEL

IPC: C07C17/20 ,  C07C19/12

Abstract: The invention relates to a method for producing 1-chloro-2,2-difluoroethane from 1,1,2-trichloroethane, comprising at least one step of separating 1-chloro-2,2-difluoroethane from the organic phase produced during the method; said step comprising a) purification of the organic phase obtained in step (iii) so as to form a first stream comprising 1-chloro-difluoroethane and hydrofluoric acid and a second stream comprising 1,1,2-trichloroethane; b) the elimination of the hydrofluoric acid from said first stream in order to form a third stream comprising 1-chloro-difluoroethane; and c) a purification of said third stream comprising 1-chloro-difluoroethane.

公开(公告)号：US20230391059A1

公开(公告)日：2023-12-07

申请号：US18250656

申请日：2021-10-27

Applicant: ARKEMA FRANCE

Inventor： Quentin PINEAU ,  Charlotte HERDT ,  Sébastien Jun MOUGNIER

IPC: B32B27/12 ,  B32B5/02 ,  B32B27/34 ,  B32B27/28 ,  B32B7/12 ,  B32B27/18 ,  B32B37/12 ,  B32B27/08 ,  B32B37/18

CPC classification number: B32B27/12 ,  B32B5/02 ,  B32B27/34 ,  B32B27/285 ,  B32B7/12 ,  B32B27/18 ,  B32B37/1207 ,  B32B27/08 ,  B32B37/182 ,  B32B2262/0261 ,  B32B2307/7376 ,  B32B2307/4026 ,  B32B2307/3065 ,  B32B2272/00 ,  B32B2037/1223 ,  B32B2305/18 ,  B32B2307/7246

Abstract: The invention relates to a multilayer structure comprising a textile layer comprising at least one polymer chosen from a polyamide and a copolymer containing polyamide blocks and polyether blocks, and combinations thereof; and a film comprising at least one copolymer containing polyamide blocks and polyether blocks, the polyether blocks comprising polyethylene glycol blocks, the polyethylene glycol blocks representing at least 40% by mass relative to the mass of the film; in which the film adheres to the textile layer via a copolyamide.
The invention also relates to a process for manufacturing said multilayer structure, to a process for recycling said multilayer structure and also to an article comprising said multilayer structure.

公开(公告)号：US20190300473A1

公开(公告)日：2019-10-03

申请号：US16336305

申请日：2017-09-25

Applicant: Arkema France

Inventor： Dominique GARRAIT ,  Charlotte HERDT ,  Camille SCHERPEREEL

IPC: C07C211/15 ,  C07C19/12 ,  C07C21/18

Abstract: Compositions including 1-chloro-2,2-difluoroethane, and the uses thereof. A composition including 1-chloro-2,2-difluoroethane and at least one additional compound selected from 1,1-difluoroethylene, 1,1,1-trifluoroethane, chlorotrifluoroethylene, 1-chloro-1-fluoroethylene, 1,1-difluoroethane, trans-1-chloro-2-fluoroethylene, 1-chloro-2,2,2-trifluoroethane, 1-chloro-1,2,2-trifluoroethane, cis-1-chloro-2-fluoroethylene, 2,2-dichloro-1,1,1-trifluoroethane, 1,1-dichloro-1-fluoroethane, 1,1-dichloroethylene, 1,2-dichloro-1-fluoroethylene, 1,1-dichloro-2-fluoroethylene, 1,2-dichloro-1,1-difluoroethane, 1,1-dichloro-2,2-difluoroethane, cis-1,2-dichloroethylene, 1,2,2-trichloro-1,1-difluoroethane, 1,1,1-trichloroethane, 1,1-dichloroethane, 1,1,2-trichloro-1-fluoroethane, trichloroethylene, 1,1,2-trichloro-2-fluoroethane, 1,1,2-trichloroethane, 1,1,2,2-tetrachloro-1-fluoroethane, tetrachloroethylene, 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, 1,1,1,2,2-pentachloroethane, tetrachloromethane, 1,2,2-trichloro-1-fluoroethylene, isomers of chloropropene, 1,2-dichloro-1-fluoroethylene, 1-chloro-2-fluoroethane, 1-chloro-1-fluoroethane, 1,1-chloro-2,2,2-trifluoroethane, 1,1,1-trichloro-2,2-difluoroethane, 1-chloroethylene, 1-fluoroethylene, H2O and HCl; the composition including at least 30% by weight of 1-chloro-2,2-difluoroethane, based on the total weight of the composition.