公开(公告)号：US20180009944A1

公开(公告)日：2018-01-11

申请号：US15545546

申请日：2016-01-22

Applicant: BASF SE

Inventor： SIMON GRAMLICH ,  Achim STAMMER ,  Angela ULZHÕFER

IPC: C08G65/46 ,  C07D207/267 ,  C07C233/05

CPC classification number: C08G65/46 ,  C07C233/05 ,  C07D207/267

Abstract: A method for desalinating a salt-containing polymer (SP) comprising a polyaryl ether having a softening temperature TS and a salt (S), comprising the steps of a) providing the salt-containing polymer (SP) at a first temperature T1 above the softening temperature TS of the polyaryl ether, b) contacting the salt-containing polymer (SP) provided in step a) with an extractant (E) to obtain a desalinated polymer (DP) comprising the polyaryl ether, and a salt-containing extractant (SE) comprising the extractant (E) and the salt (S).