PROCESS FOR PRODUCING POLYARYLENE SULFIDE

专利名称：PROCESS FOR PRODUCING POLYARYLENE

SULFIDE

发明人：MATSUZAKI, Mitsuhiro c/o IWAKI

FACTORY,HORIKOSHI, Katsumi c/oRESEARCH CENTER,KOBAYASHI, Masanoric/o IWAKI FACTORY

申请号：EP05781539.1申请日：20050831公开号：EP1788010B1公开日：20081008

摘要：In a process for producing polyarylene sulfide, comprising: reacting an alkalisulfide source and an aromatic dihalide compound in a polar organic solvent to obtain apolymerizate slurry containing polyarylene sulfide particles, by-produced alkali metalsalt fine particles and the polar organic solvent, and recovering the polyarylene sulfideparticles washed from the polymerizate slurry; the polymerizate slurry is separated bysieving into the polyarylene sulfide particles and a slurry containing the alkali metal saltfine particles, and the separated polyarylene sulfide particles are subjected to a washingstep wherein the polyarylene sulfides are introduced into a countercurrent washingapparatus enclosing a movable part and subjected therein to continuous countercurrentcontact with a washing liquid. As a result, polyarylene sulfide particles of good quality areproduced at a good yield, while pursuing process rationalization.

申请人：KUREHA CORP

地址：JP

国籍：JP

代理机构：Albrecht, Thomas

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