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    • 8. 发明授权
    • Process for producing polyarylene sulfide
    • 生产聚芳硫醚的方法
    • US06982312B2
    • 2006-01-03
    • US10471663
    • 2002-03-04
    • Minoru SengaMasaya OkamotoMikiya Hayashi
    • Minoru SengaMasaya OkamotoMikiya Hayashi
    • C08G75/00
    • C08G75/025C08G75/0254
    • There is disclosed a process for producing a polyarylene sulfide (PAS) which comprises reacting a sulfur source with a dihalogenated aromatic compound in the presence of an aprotic organic solvent, characterized in that the process comprises at least one polymerization reaction step wherein a polymer phase as a dispersed phase is in the form of spherical droplets. It is made possible by the continuous polymerization process to discharge the polymer phase and solvent phase from a polymerization vessel at a constant ratio and as a result, to maintain PAS composition (concentration) at a constant level at all times, and thus to provide a continuous PAS production process which is effective for enhancing its molecular weight and stabilizing the same.
    • 公开了一种生产聚芳硫醚(PAS)的方法,该方法包括在非质子有机溶剂存在下使硫源与二卤代芳族化合物反应,其特征在于该方法包括至少一个聚合反应步骤,其中聚合物相为 分散相是球形液滴的形式。 通过连续聚合方法可以以恒定比例从聚合容器中排出聚合物相和溶剂相,结果,始终保持PAS组成(浓度)在恒定水平,从而提供一种 连续的PAS生产工艺,对于提高其分子量和稳定分子量是有效的。