CATALYTIC OLEFIN BLOCK COPOLYMERS WITH CONTROLLED BLOCK SEQUENCE DISTRIBUTION
    6.
    发明申请
    CATALYTIC OLEFIN BLOCK COPOLYMERS WITH CONTROLLED BLOCK SEQUENCE DISTRIBUTION 审中-公开
    具有控制块序列分布的催化烯烃嵌段共聚物

    公开(公告)号:WO2007035485A1

    公开(公告)日:2007-03-29

    申请号:PCT/US2006/036038

    申请日:2006-09-14

    IPC分类号: C08F297/08

    摘要: A process for the polymerization of one or more addition polymerizable monomers and the resulting polymer products, said process comprising: 1) contacting an addition polymerizable monomer or mixture of monomers under addition polymerization conditions in a reactor or reactor zone with a composition comprising at least one olefin polymerization catalyst and a cocatalyst and characterized by the formation of polymer chains from said monomer or monomers; 2) transferring the reaction mixture to a second reactor or reactor zone and optionally adding one or more additional reactants, catalysts, monomers or other compounds prior to, commensurate with, or after said transfer; and 3) causing polymerization to occur in said second reactor or reactor zone to form polymer chains that are differentiated from the polymer chains formed in step 1); said process being characterized by addition of a chain shuttling agent to the reaction mixture prior to, during, or subsequent to step 1) such that at least some of the resulting polymer molecules from step 3) comprise two or more chemically or physically distinguishable blocks or segments.

    摘要翻译: 一种用于聚合一种或多种可加聚单体和所得聚合物产物的方法,所述方法包括:1)在反应器或反应器区中的加成聚合条件下将加成聚合单体或单体混合物与包含至少一种 烯烃聚合催化剂和助催化剂,其特征在于由所述单体或单体形成聚合物链; 2)将反应混合物转移到第二反应器或反应器区,并任选地在所述转移之前,之后或之后加入一种或多种另外的反应物,催化剂,单体或其它化合物; 和3)在所述第二反应器或反应器区域中引起聚合以形成与步骤1)中形成的聚合物链不同的聚合物链; 所述方法的特征在于在步骤1)之前,期间或之后向反应混合物中加入链穿梭剂,使得来自步骤3)的所得聚合物分子中的至少一些包含两个或多个化学或物理上可区分的嵌段或 段。