公开(公告)号：US5314972A

公开(公告)日：1994-05-24

申请号：US410686

申请日：1989-09-21

申请人： Afif M. Nesheiwat ,  John F. Geibel

发明人： Afif M. Nesheiwat ,  John F. Geibel

IPC分类号： C08J3/00 ,  C08G75/02 ,  C08G75/06 ,  C08F283/00

CPC分类号： C08G75/0281

摘要： In one embodiment, a process is provided for treating virgin arylene sulfide resins, wherein a heated polymer slurry, comprising a virgin arylene sulfide resin and water, is contacted by a buffer solution having a pH less than about 9.35 but greater than that necessary to result in at least a partial curing of the virgin arylene sulfide resin. In a further embodiment, a process is provided for treating a virgin arylene sulfide resin, wherein a virgin arylene sulfide resin is slurried in a buffer solution having a pH less than about 9.35 but greater than that necessary to result in at least a partial curing of the virgin arylene sulfide resin. The treating process of this invention is conducted at an elevated temperature, below the melting point of the virgin arylene sulfide resin, while in the substantial absence of a gaseous oxidizing atmosphere. The treated arylene sulfide resins are recovered from the polymer slurry in a manner which does not result in at least a partial curing of the treated resin.

摘要翻译： 在一个实施方案中，提供了一种用于处理原始亚芳基硫醚树脂的方法，其中包含原始亚芳基硫醚树脂和水的加热聚合物浆料与pH小于约9.35但大于所得结果所需的缓冲溶液接触 在原始亚芳基硫醚树脂的至少部分固化中。 在另一个实施方案中，提供了一种处理原始亚芳基硫醚树脂的方法，其中将原始亚芳基硫醚树脂在pH小于约9.35但大于导致至少部分固化所需的pH缓冲溶液中浆化 原始亚芳硫醚树脂。 本发明的处理方法在基本上没有气态氧化气氛的高温下，低于原始亚芳基硫醚树脂的熔点进行。 经处理的亚芳基硫醚树脂以不会导致经处理的树脂的至少部分固化的方式从聚合物浆料中回收。