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    • 1. 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。
    • 3. 发明申请
    • Process for the production of polyarylene sulfide
    • 聚芳硫醚生产工艺
    • US20060122363A1
    • 2006-06-08
    • US10529631
    • 2003-10-01
    • Mikiya HayashiMinoru Senga
    • Mikiya HayashiMinoru Senga
    • C08G75/00
    • C08G75/0254C08G75/0231C08G75/025C08G75/14
    • The production process of the present invention for polyarylene sulfide is characterized by that in a process for continuously producing polyarylene sulfide by reacting a sulfur source with a dihalogenated aromatic compound in an aprotic organic solvent, it comprises at least one polymerization reaction step in which two phases of a polymer phase and a solvent phase are separated and in which the polymer phase corresponding to a dispersion phase is a dispersion phase comprising globular droplets and that an end terminator is used in the above polymerization reaction step. According to the present invention, a polymer can be prevented from being adhered onto a polymerization reaction bath to thereby make it possible to discharge a polymer phase and a solvent phase from the polymerization bath in a constant proportion; resultingly, a PAS composition (concentration) in the polymerization bath can always be maintained at a constant value; and polyarylene sulfide having a raised and stabilized molecular weight can continuously be produced.
    • 本发明的聚芳硫醚的制造方法的特征在于,通过在非质子性有机溶剂中使硫源与二卤代芳香族化合物反应而连续生成聚芳硫醚的方法,其包括至少一个聚合反应步骤,其中两相 分离聚合物相和溶剂相,其中对应于分散相的聚合物相是包含球状液滴的分散相,并且在上述聚合反应步骤中使用终止终止剂。 根据本发明,可以防止聚合物粘附在聚合反应槽上,从而可以以一定的比例从聚合浴中排出聚合物相和溶剂相; 因此,聚合槽中的PAS组成(浓度)总能保持在恒定值; 并且可以连续生产具有升高和稳定的分子量的聚芳硫醚。