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    Highly flowable propylene block copolymers
    13.
    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。

    Ziegler-Natta catalyst systems modified during their preparation
    18.
    发明授权
    Ziegler-Natta catalyst systems modified during their preparation 失效
    齐格勒 - 纳塔催化剂体系在制备过程中改进

    公开(公告)号：US6156691A

    公开(公告)日：2000-12-05

    申请号：US928394

    申请日：1997-09-12

    申请人： Stephan Huffer ,  Ulrich Moll ,  Ian David McKenzie ,  Franz Langhauser ,  Peter Kolle ,  Roland Hingmann ,  Gunther Schweier ,  Rainer Hemmerich ,  Jurgen Kerth

    发明人： Stephan Huffer ,  Ulrich Moll ,  Ian David McKenzie ,  Franz Langhauser ,  Peter Kolle ,  Roland Hingmann ,  Gunther Schweier ,  Rainer Hemmerich ,  Jurgen Kerth

    IPC分类号： C08F4/02 ,  C08F4/642 ,  C08F4/646 ,  C08F4/654 ,  C08F4/658 ,  C08F10/00 ,  B01J31/00

    CPC分类号： C08F10/00

    摘要： In catalyst systems of the Ziegler-Natta type modified during their preparation and comprising as active constituentsa) a titanium-containing solid component which is obtained by reacting a compound of titanium with a compound of magnesium, a halogen, an inorganic oxide as support, a C.sub.1 -C.sub.8 -alkanol and a carboxylic ester as electron donor compound,and also as cocatalystb) an aluminum compound andc) if desired, a further electron donor compound,the titanium-containing solid component a) is prepared by first, in a first stage, admixing an inorganic oxide as support with a solution of a chlorine-free compound of magnesium in an inert solvent, stirring this mixture for from 0.5 to 5 hours at from 10 to 120.degree. C. and subsequently reacting it while stirring continually in an inert solvent with a C.sub.1 -C.sub.8 -alkanol in an at least 1.3-fold excess, based on the compound of magnesium, to give a chlorine-free intermediate, then, without purification or extraction of the intermediate, adding a compound of trivalent or tetravalent titanium and a carboxylic ester as electron donor compound to this intermediate, stirring the resulting mixture for at least 30 minutes at from 20 to 130.degree. C., subsequently filtering off and washing the solid thus obtained and subsequently, in a second stage, extracting the solid obtained from the first stage in an inert solvent comprising at least 5% by weight of titanium tetrachloride and washing it with a liquid alkane.

    摘要翻译： 在其制备过程中改性的齐格勒 - 纳塔型催化剂体系中，包含作为活性成分的含钛固体成分a）通过使钛化合物与镁，卤素，无机氧化物作为载体反应而得到的含钛固体成分， 作为电子给体化合物的C1-C8-链烷醇和羧酸酯，以及作为助催化剂的b）铝化合物，和c）如果需要，另外的电子给体化合物，含钛固体组分a）首先在 第一阶段，将无机氧化物作为载体与无氯化合物的镁在惰性溶剂中的溶液混合，在10至120℃下搅拌该混合物0.5至5小时，随后在持续搅拌下反应 在基于镁化合物的至少1.3倍过量的C 1 -C 8烷醇的惰性溶剂中，得到无氯中间体，然后不经纯化或萃取中间体，加入一种 磅三价或四价钛和羧酸酯作为电子给体化合物，在20至130℃下搅拌所得混合物至少30分钟，随后过滤并洗涤由此获得的固体，随后在 第二阶段，在包含至少5重量％的四氯化钛的惰性溶剂中萃取从第一阶段获得的固体，并用液体烷烃洗涤。

    Ziegler-Natta catalyst systems modified during their preparation
    20.
    发明授权
    Ziegler-Natta catalyst systems modified during their preparation 失效
    齐格勒 - 纳塔催化剂体系在制备过程中改进

    公开(公告)号：US6107231A

    公开(公告)日：2000-08-22

    申请号：US928526

    申请日：1997-09-12

    申请人： Stephan Huffer ,  Ulrich Moll ,  Peter Kolle ,  Roland Hingmann

    发明人： Stephan Huffer ,  Ulrich Moll ,  Peter Kolle ,  Roland Hingmann

    IPC分类号： C08F4/642 ,  C08F4/646 ,  C08F4/654 ,  C08F10/00 ,  C08F110/06 ,  B01J38/56

    CPC分类号： C08F10/00 ,  C08F110/06

    摘要： In catalyst systems of the Ziegler-Natta type comprising as active constituentsa) a titanium-containing solid component which is obtained by reacting a compound of titanium with a compound of magnesium, a halogen, an inorganic oxide as support, a C.sub.1 -C.sub.8 -alkanol and a carboxylic ester as electron donor compound,and also as cocatalyst,b) an aluminum compound andc) if desired, a further electron donor compound,the reaction of the individual components for preparing the titanium-containing solid component a) is carried out in the presence of an aromatic hydrocarbon as solvent.

    摘要翻译： 在包含作为活性成分的齐格勒 - 纳塔型催化剂体系中，a）通过使钛化合物与镁，卤素，作为载体的无机氧化物，C1-C8- 链烷醇和羧酸酯作为电子给体化合物，以及作为助催化剂，b）铝化合物和c）如果需要，还可以进一步施加电子给体化合物，用于制备含钛固体组分a）的各组分的反应 在芳族烃作为溶剂的存在下。