Method of separating a polymer from a solvent
    3.
    发明授权
    Method of separating a polymer from a solvent 失效
    从溶剂中分离聚合物的方法

    公开(公告)号:US06924350B2

    公开(公告)日:2005-08-02

    申请号:US10648542

    申请日:2003-08-26

    摘要: A method of separating a polymer-solvent mixture is described wherein a polymer-solvent mixture is heated prior to its introduction into an extruder comprising as upstream vent and/or a side feeder vent to allow flash evaporation of the solvent, and downstream vents for removal of remaining solvent. The one-step method is highly efficient having very high throughput rates while at the same time providing a polymer product containing low levels of residual solvent.

    摘要翻译: 描述了分离聚合物 - 溶剂混合物的方法,其中将聚合物 - 溶剂混合物在引入包含作为上游排气口和/或侧面进料排气口的挤出机中之前被加热以允许溶剂的闪蒸,以及用于除去的下游通风口 的剩余溶剂。 一步法是高效率的,具有非常高的生产率,同时提供含有低水平残余溶剂的聚合物产物。

    Method of separating a polymer from a solvent
    5.
    发明授权
    Method of separating a polymer from a solvent 失效
    从溶剂中分离聚合物的方法

    公开(公告)号:US07226989B2

    公开(公告)日:2007-06-05

    申请号:US11145816

    申请日:2005-06-06

    IPC分类号: C08F6/10

    摘要: A method of separating a polymer-solvent mixture is described wherein a polymer-solvent mixture is heated prior to its introduction into an extruder comprising an upstream vent and/or a side feeder vent to allow flash evaporation of the solvent, and downstream vents for removal of remaining solvent. The one-step method is highly efficient having very high throughput rates while at the same time providing a polymer product containing low levels of residual solvent.

    摘要翻译: 描述了分离聚合物 - 溶剂混合物的方法,其中将聚合物 - 溶剂混合物在引入包含上游通气口和/或侧面进料通气口的挤出机中之前被加热以允许溶剂的闪蒸,以及用于除去的下游通气孔 的剩余溶剂。 一步法是高效率的,具有非常高的生产率,同时提供含有低水平残余溶剂的聚合物产物。