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    PELLETIZED POLYMER COMPOSITIONS
    2.
    发明公开
    PELLETIZED POLYMER COMPOSITIONS 审中-公开

    公开(公告)号：EP3514183A1

    公开(公告)日：2019-07-24

    申请号：EP19152975.9

    申请日：2014-06-12

    申请人： Dow Global Technologies Llc

    发明人： KOLTHAMMER, Brian W. ,  ZOGG JR, Michael J.

    IPC分类号： C08F2/04 ,  C08F10/00 ,  B29B9/06 ,  C08F210/16

    摘要： The present invention relates to a pelletized polymer composition produced via a process comprising:
    polymerizing one or more alpha-olefins in one or more solution reactors thereby producing a molten polymer composition comprising one or more solvents;
    removing at least a portion of said one or more solvents thereby forming a polymer composition having a low solvent content (typically less than 1,000 parts of solvent per million of polymer on a weight basis);
    removing heat from said polymer composition having low solvent content to a temperature in the range of equal to or greater than the crystallization point of the polymer composition having low solvent content to less than or equal to a temperature in the range of from (the crystallization point of the polymer composition having low solvent content + 20 °C) thereby forming a viscous polymer melt; and
    pelletizing said viscous polymer melt via an underwater pelletizer thereby forming said pelletized polymer composition;
    wherein each pelletized polymer composition has diameter in the range of from less than 6 mm.

    AN IMPROVED PROCESS FOR PRODUCING PELLETIZED POLYMER COMPOSITIONS
    4.
    发明公开
    AN IMPROVED PROCESS FOR PRODUCING PELLETIZED POLYMER COMPOSITIONS 审中-公开
    EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN

    公开(公告)号：EP3155020A1

    公开(公告)日：2017-04-19

    申请号：EP14735811.3

    申请日：2014-06-12

    申请人： Dow Global Technologies LLC

    发明人： KOLTHAMMER, Brian W. ,  ZOGG JR., Michael J.

    IPC分类号： C08F2/04 ,  C08F10/00 ,  B29B9/06

    CPC分类号： C08F210/16 ,  B01J2/00 ,  B29B9/065 ,  B29B9/12 ,  C08F2/06

    摘要： The instant invention provides an improved process for producing pelletized polymer compositions, and pelletized polymer compositions. The process for producing a pelletized polymer composition according to the present invention comprises: (1) polymerizing one or more alpha-olefins in one or more solution reactors thereby producing a molten polymer composition comprising one or more solvents; (2) removing at least a portion of said one or more solvents thereby forming a polymer composition having a low solvent content (typically less than 1,000 parts of solvent per million of polymer on a weight basis); (3) removing heat from said polymer composition having low solvent content to a temperature in the range of equal to or greater than the crystallization point of the polymer composition having low solvent content to less than or equal to a temperature in the range of from (the crystallization point of the polymer composition having low solvent content+20° C.) thereby forming a viscous polymer melt; and (4) pelletizing said viscous polymer melt via an underwater pelletizer thereby forming said pelletized polymer composition.

    摘要翻译： 本发明提供了一种用于生产粒状聚合物组合物和颗粒状聚合物组合物的改进方法。 根据本发明的生产粒状聚合物组合物的方法包括：（1）在一个或多个溶液反应器中聚合一种或多种α-烯烃，由此制备包含一种或多种溶剂的熔融聚合物组合物; （2）除去至少一部分所述一种或多种溶剂，从而形成具有低溶剂含量的聚合物组合物（通常以重量计每百万聚合物小于1,000份溶剂）; （3）从具有低溶剂含量的所述聚合物组合物中除去热等于或大于具有低溶剂含量的聚合物组合物的结晶点的范围内的温度至小于或等于（ 聚合物组合物的结晶点具有低溶剂含量+ 20℃），从而形成粘性聚合物熔体; 和（4）通过水下造粒机造粒所述粘性聚合物熔体，由此形成所述颗粒状聚合物组合物。