公开(公告)号：US10889689B2

公开(公告)日：2021-01-12

申请号：US16086671

申请日：2017-03-14

Applicant: BASF SE

Inventor： Simon Gramlich ,  Achim Stammer ,  Angela Ulzhoefer ,  Frank Niedermaier ,  Michel Gassmann

IPC: C08G65/46 ,  C08G75/23 ,  C08G75/02 ,  C08G65/40 ,  C08G75/20 ,  C08G75/00 ,  C08J5/18 ,  C08J3/14

Abstract: The present invention relates to a process for preparing a polyaryl ether by reacting components (a1) and (a2) in the presence of a carbonate compound (C) to obtain a salt-containing polymer (SP) comprising the polyaryl ether and a salt (S). After the reaction, the salt (S) is extracted from the salt-containing polymer (SP) to obtain a desalinated polymer (DP) comprising the polyaryl ether.