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    Catalyst systems of the Ziegler-Natta type
    9.
    发明授权
    Catalyst systems of the Ziegler-Natta type 失效
    齐格勒 - 纳塔型催化剂系统

    公开(公告)号：US06524995B2

    公开(公告)日：2003-02-25

    申请号：US09750715

    申请日：2001-01-02

    申请人： Wolf Spaether ,  Stephan Hüffer ,  John Lynch ,  Wolfgang Bidell ,  Joachim Rösch ,  Günther Schweier ,  Roland Hingmann ,  Alexandre Segul ,  Rainer Hemmerich ,  Ingo Treffkorn

    发明人： Wolf Spaether ,  Stephan Hüffer ,  John Lynch ,  Wolfgang Bidell ,  Joachim Rösch ,  Günther Schweier ,  Roland Hingmann ,  Alexandre Segul ,  Rainer Hemmerich ,  Ingo Treffkorn

    IPC分类号： B01J2302

    CPC分类号： C08F10/00 ,  C08F110/06 ,  C08F4/025 ,  C08F4/6546 ,  C08F2500/12 ,  C08F2500/24

    摘要： Catalyst systems of the Ziegler-Natta type comprise as active constituents a) a solid component comprising a compound of titanium or vanadium, a compound of magnesium, a particulate inorganic oxide as support and an internal electron donor compound, and as cocatalyst b) an aluminum compound and c) if desired, a further, external electron donor compound, wherein the particulate, inorganic oxide used has a specific surface area of from 350 to 1000 m2/g and a mean particle diameter {overscore (D)} in the range from 5 to 60 &mgr;m and comprises particles which are composed of primary particles having a mean particle diameter {overscore (d)} in the range from 1 to 10 &mgr;m and contain voids or channels between the primary particles, where the macroscopic proportion of voids or channels having a diameter of greater than 1 &mgr;m in the particles of the inorganic oxides is in the range from 5 to 30% by volume and the molar ratio of the compound of magnesium to the particulate, inorganic oxide is from 0.5:1 to 2.0:1.

    摘要翻译： 齐格勒 - 纳塔型的催化剂体系包括作为活性成分的a）包含钛或钒的化合物的固体组分，镁的化合物，作为载体的颗粒状无机氧化物和内部电子给体化合物，以及作为助催化剂）铝化合物和 ），其中所用的颗粒状无机氧化物的比表面积为350〜1000m2 / g，平均粒径（超芯（D在5〜60μm的范围内）和 包含由平均粒径（超芯（d在1-10μm范围内）并且在初级颗粒之间含有空隙或通道的初级颗粒组成的颗粒，其中空隙或通道的宏观比例具有大于1的直径 无机氧化物颗粒中的母体在5至30体积％的范围内，镁与颗粒的无机氧化物的摩尔比为0.5:1至 2.0：1。

    Highly flowable propylene block copolymers
    10.
    发明授权
    Highly flowable propylene block copolymers 有权
    高流动性丙烯嵌段共聚物

    公开(公告)号：US07196140B2

    公开(公告)日：2007-03-27

    申请号：US10296256

    申请日：2001-05-23

    申请人： Ulrich Dahn ,  Wolfgang Bidell ,  Hans-Jürgen Zimmermann ,  Roland Hingmann ,  Joachim Rösch ,  Günther Schweier ,  Jürgen Oelze

    发明人： Ulrich Dahn ,  Wolfgang Bidell ,  Hans-Jürgen Zimmermann ,  Roland Hingmann ,  Joachim Rösch ,  Günther Schweier ,  Jürgen Oelze

    IPC分类号： C08F297/08 ,  C08F297/00 ,  C08F4/64 ,  C08F4/642

    CPC分类号： C08F297/08 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08L53/00 ,  C08F2/001 ,  C08F2/34 ,  C08L2666/02 ,  C08F2500/12 ,  C08F2500/17 ,  C08F210/16

    摘要： The invention relates to highly flowable propylene block copolymers that comprise 50 to 80 wt.-% of a propylene homopolymer and 10 to 70 wt.-% of a propylene copolymer having 5 to 50 wt.-% of a C2–C8 alk-1-ene polymerized into it that is different from propylene, and that are obtainable from the gaseous phase by a two-step polymerization by means of a Ziegler-Natta catalyst system. In a first polymerization step, the propylene is polymerized at a pressure of 10 to 50 bar, a temperature of 50 to 100° C. and an average dwelling time of the reaction mixture of 0.3 to 5 hours in the presence of at least 2.0% by volume, based on the total volume, of hydrogen. The propylene homopolymer obtained in said first polymerization step is transferred together with the Ziegler-Natta catalyst system into an intermediate container, expanded for 0.01 to 5 minutes to less than 5 bar and maintained at a temperature of 10 to 80° C. The pressure in the intermediate container is then increased by 5 to 60 bar by introducing under pressure a gaseous mixture, and the propylene homopolymer is then transferred to a second polymerization step together with the Ziegler-Natta catalyst system. In said second polymerization step, a mixture from propylene and a C2–C8 alk-1-ene is polymerized into the propylene homopolymer at a pressure of 10 to 50 bar, a temperature of 50 to 100° C. and an average dwelling time of 0.5 to 5 hours. The weight ratio between the monomers reacted in the first and those reacted in the second polymerization step are adjusted to be in the range of from 4:1 to 1:1.

    摘要翻译： 本发明涉及高流动性丙烯嵌段共聚物，其包含50至80重量％的丙烯均聚物和10至70重量％的丙烯共聚物，其具有5至50重量％的C 2 其中聚合成与丙烯不同的烷基-1-烯，并且可以通过采用齐格勒 - 纳塔催化剂体系的两步聚合由气相获得 。 在第一聚合步骤中，丙烯在10至50巴的压力，50至100℃的温度和在至少2.0％的存在下反应混合物的平均停留时间为0.3至5小时的聚合反应， ，基于总体积的氢气。 将所述第一聚合步骤中获得的丙烯均聚物与齐格勒 - 纳塔催化剂体系一起转移到中间容器中，膨胀0.01至5分钟至小于5巴，并保持在10至80℃的温度。 然后通过在压力下引入气体混合物将中间容器增加5至60巴，然后将丙烯均聚物与齐格勒 - 纳塔催化剂体系一起转移到第二聚合步骤。 在所述第二聚合步骤中，将丙烯和C 12 -C 13烷-1-烯的混合物在10至50巴的压力下聚合成丙烯均聚物 ，温度为50〜100℃，平均停留时间为0.5〜5小时。 在第一聚合步骤中反应的单体和在第二聚合步骤中反应的单体之间的重量比被调节至4:1至1:1的范围内。