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    SYSTEM AND METHOD FOR PROCESSING OF LOW VISCOSITY POLYMERS
    4.
    发明公开
    SYSTEM AND METHOD FOR PROCESSING OF LOW VISCOSITY POLYMERS 审中-公开
    用于处理低粘度聚合物的系统和方法

    公开(公告)号：EP3233404A1

    公开(公告)日：2017-10-25

    申请号：EP15820933.8

    申请日：2015-12-10

    申请人： Dow Global Technologies LLC

    发明人： ZOGG, JR., Michael J. ,  GAMBREL, Timothy W. ,  VAN LEEUWEN, Johan

    IPC分类号： B29B9/06 ,  B29C47/10 ,  B29C47/36 ,  B29C47/70 ,  B29C47/78

    CPC分类号： B29B9/065 ,  B29C48/285 ,  B29C48/36 ,  B29C48/695 ,  B29C48/78

    摘要： Disclosed herein is a system comprising a first pump; a pelletization system that comprises an underwater pelletizer; where the pelletization system is located downstream of the first pump and is in fluid communication with it; a direct line that is located downstream of the first pump and upstream of the pelletization system; where the direct line does not contain a pump or a heat exchanger; and a bypass line that is located downstream of the first pump and upstream of the pelletization system; where the bypass line comprises a second pump; where the first pump is operative to discharge the polymer to the pelletization system via the direct line when the polymer has a melt viscosity greater than 105 centipoise; and where the first pump is operative to discharge the polymer to the pelletization system via the bypass line when the polymer has a melt viscosity less than 105 centipoise.

    摘要翻译： 包括第一泵（408）和造粒系统（600）的系统（400），所述造粒系统（600）包括位于所述第一泵下游并与所述泵流体连通的水下造粒机（604），还包括直接管线 504），其位于所述第一泵的下游和所述造粒系统的上游，其中所述直接管线不包含泵或热交换器，并且还包括旁路管线（506,510,512），所述旁路管线（506,510,512）位于所述第一泵 泵和造粒系统的上游，其中旁路管线包括第二泵（418），并且其中当聚合物具有大于10 5 mPas的熔体粘度时，第一泵可操作以通过直接管线将聚合物排出到造粒系统 并且当聚合物具有小于10 5 mPas的熔体粘度时，第一泵可用于通过旁路管线将聚合物排出到造粒系统。