POLYARYLETHERKETONE PRODUCTION METHOD

Title:

POLYARYLETHERKETONE PRODUCTION METHOD

Document Type and Number:

WIPO Patent Application WO/2019/074056

Kind Code:

A1

Abstract:

The present invention provides a method that can stably produce a polyaryletherketone that has a high polymerization degree and is easily recoverable. A polyaryletherketone production method comprising a polycondensation step for performing desalting polycondensation in a reaction solution and a step for cooling the reaction mixture after completion of the desalting polycondensation is provided. During this, the polycondensation step is conducted in a hydrophilic solvent under pressure, and the polymerization temperature during the polycondensation step is set at a boiling point or higher of the hydrophilic solvent under normal pressure. Moreover, during cooling in the cooling step, the polymer content in the reaction mixture, in terms of monomers per 100 parts by mass of the hydrophilic solvent, is set to be 1-50 parts by mass, inclusive.

Inventors:

SAKABE HIROSHI (JP)
SUZUKI TASUTAKA (JP)
WAKAMATSU AKIKO (JP)
SUZUKI KENJI (JP)

Application Number:

PCT/JP2018/037917

Publication Date:

April 18, 2019

Filing Date:

October 11, 2018

Export Citation:

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Assignee:

KUREHA CORP (JP)

International Classes:

C08G65/40; C08G65/46

Domestic Patent References:

WO2003050163A1

2003-06-19

Foreign References:

JP2006111664A	2006-04-27
JP2003217342A	2003-07-31
JPH07138360A	1995-05-30
JP2010070657A	2010-04-02
JPH07138360A	1995-05-30
JP2010070657A	2010-04-02
JPS6110486A	1986-01-17
JP2014532109A	2014-12-04

Other References: