PROCESS FOR THE PRODUCTION OF POLYARYLENE SULFIDE

Title:

PROCESS FOR THE PRODUCTION OF POLYARYLENE SULFIDE

Document Type and Number:

WIPO Patent Application WO/2004/031262

Kind Code:

A1

Abstract:

A process for continuous production of polyarylene sulfide (PAS) by reacting a sulfur source with a dihalogenated aromatic compound in an aprotic organic solvent, characterized by comprising at least one polymerization step wherein the reaction system consists of two separate phases, i.e., a dispersed polymer phase composed of polymer globules and a solvent phase, and by using a terminator in the polymerization step. According to the invention, the adhesion of the polymer to a polymerization tank can be inhibited, so that the polymer phase and the solvent phase can be discharged from the tank at a constant ratio to thereby keep the PAS concentration in the tank at a constant level, whereby a stabilized polyarylene sulfide having an enhanced molecular weight can be continuously produced.

Inventors:

HAYASHI MIKIYA (JP)
SENGA MINORU (JP)

Application Number:

PCT/JP2003/012599

Publication Date:

April 15, 2004

Filing Date:

October 01, 2003

Export Citation:

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Assignee:

IDEMITSU PETROCHEMICAL CO (JP)
HAYASHI MIKIYA (JP)
SENGA MINORU (JP)

International Classes:

C08G75/02; C08G75/0231; C08G75/0254; C08G75/04; (IPC1-7): C08G75/04

Foreign References:

JPS6346228A	1988-02-27
JP2002265603A	2002-09-18
JPH09169844A	1997-06-30
JPH0841201A	1996-02-13
JPH03506047A	1991-12-26

Other References: