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    • 5. 发明授权
    • Process for removing volatile components in polyarylene sulfide
    • 去除聚芳硫醚中挥发性成分的方法
    • US07018574B2
    • 2006-03-28
    • US10368564
    • 2003-02-20
    • Yoshinari Koyama
    • Yoshinari Koyama
    • B29C47/76
    • B29C47/767B29C47/0009B29C47/40B29C47/6056B29C47/64B29C47/763
    • There is disclosed a process for removing volatile components in a polyarylene sulfide resin which is produced by subjecting a sulfur source and a dihalogenated aromatic compound to polymerization reaction in an aprotic organic solvent, comprising using an extruder which is equipped with front vent having an opening length in the range of 4D to 11D (D: screw diameter) and which has a distance between a terminal position of a screw in a kneading portion and the opening portion of the front vent being in the range of 4D to 15D. The process is capable of steadily and economically removing volatile components in the polyarylene sulfide resin without necessitating expensive machinery or equipment such as a dryer without plugging up the opening portion of a vent even in the case of degassing a PAS resin having a low molecular weight and further, thus enabling a long-term continuous stable running.
    • 公开了一种除去聚亚芳基硫醚树脂中的挥发性组分的方法,该方法是通过使硫源和二卤代芳族化合物在非质子性有机溶剂中进行聚合反应而制备的,其包括使用挤出机,该挤出机配备有具有开口长度 在4D至11D(D:螺杆直径)的范围内,并且其具有揉捏部分中的螺杆的终端位置与前排气孔的开口部分之间的距离在4D至15D的范围内。 该方法能够稳定且经济地除去聚芳硫醚树脂中的挥发性组分,而不需要昂贵的机械或设备如干燥机,而不会堵塞排气孔的开口部分,即使在脱气低分子量的PAS树脂的情况下, 从而能够长期持续稳定运行。