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11 条记录 (耗时 0.025 秒)

    Highly crystalline propylene homopolymers
    1.
    发明授权
    Highly crystalline propylene homopolymers 失效
    高度结晶的丙烯均聚物

    公开(公告)号：US07022795B1

    公开(公告)日：2006-04-04

    申请号：US09041698

    申请日：1998-03-13

    申请人： Stephan Hüffer ,  Joachim Rösch ,  Stefan Seelert ,  Franz Langhauser ,  Dieter Lilge ,  Roland Hingmann ,  Günther Schweier

    发明人： Stephan Hüffer ,  Joachim Rösch ,  Stefan Seelert ,  Franz Langhauser ,  Dieter Lilge ,  Roland Hingmann ,  Günther Schweier

    IPC分类号： C08F110/06 ,  C08F4/646 ,  C08F4/649

    CPC分类号： C08F10/00 ,  C08F110/06 ,  C08F4/651 ,  C08F4/6546 ,  C08F2500/12

    摘要： Propylene homopolymers, wherein, in their separation according to tacticity by first dissolving the polymers in boiling xylene, then cooling the solution to 25° C. at a cooling rate of 10° C./h and then, with ascending temperature, separating the propylene homopolymers into fractions of different tacticity, either one or more of the conditions that i) the fraction of propylene homopolymers which remains undissolved on heating the cooled propylene homopolymer solution to 112° C. is greater than 20% by weight or ii) the fraction of propylene homopolymers which remains undissolved on heating the cooled propylene homopolymer solution to 117° C. is greater than 8% by weight or iii) the fraction of propylene homopolymers which remains undissolved on heating the cooled propylene homopolymer solution to 122° C. is greater than 1% by weight, are satisfied.

    摘要翻译： 丙烯均聚物，其中通过首先将聚合物溶解在沸腾的二甲苯中，根据立构规整度的分离，然后以10℃/小时的冷却速率将溶液冷却至25℃，然后在升高温度下分离丙烯 将均聚物分成不同立构规整度的一个或多个条件，i）在将冷却的丙烯均聚物溶液加热至112℃时保持未溶解的丙烯均聚物的分数大于20重量％或ii） 在将冷却的丙烯均聚物溶液加热至117℃时保持未溶解的丙烯均聚物大于8重量％或iii）在将冷却的丙烯均聚物溶液加热至122℃时保持未溶解的丙烯均聚物的分数大于 1重量％。

    Propylene polymers
    2.
    发明授权
    Propylene polymers 失效
    丙烯聚合物

    公开(公告)号：US06495634B2

    公开(公告)日：2002-12-17

    申请号：US09097865

    申请日：1998-06-16

    申请人： Stephan Hüffer ,  Joachim Rösch ,  Franz Langhauser ,  Dieter Lilge ,  Roland Hingmann

    发明人： Stephan Hüffer ,  Joachim Rösch ,  Franz Langhauser ,  Dieter Lilge ,  Roland Hingmann

    IPC分类号： C08L2312

    CPC分类号： C08L23/10 ,  C08F10/06 ,  C08F210/16 ,  C08L23/14 ,  C08L23/142 ,  C08L2205/02 ,  C08F2/001 ,  C08F4/025 ,  C08F4/651 ,  C08F4/6546 ,  C08L2666/04 ,  C08F210/06 ,  C08F2500/12

    摘要： Propylene polymers containing a matrix of a propylene homopolymer and a copolymer of propylene and other alkenes, wherein, during the separation of the propylene polymers according to tacticity and comonomer distribution of the polymer chains, by first dissolving the propylene polymers in boiling xylene, then cooling the solution at a cooling rate of 10° C./h to 25° C. and thereafter, increasing the temperature, separating the propylene polymers into fractions of different solubility, either one or more of the conditions that i) more than 20% by weight of the matrix remain undissolved on further heating to 112° C. or ii) more than 8% by weight of the matrix remain undissolved on further heating to 117° C. or iii) more than 1% by weight of the matrix remain undissolved on further heating to 122° C. are fulfilled by the matrix which remains undissolved on heating the cooled propylene polymer solution to 80° C., a process for the preparation of the propylene polymers, their use for the production of films, fibers or moldings and the films, fibers or moldings comprising these propylene polymers, are described.

    摘要翻译： 含有丙烯均聚物基质和丙烯与其它烯烃共聚物的丙烯聚合物，其中在根据聚合物链的立构规整度和共聚单体分布分离丙烯聚合物期间，首先将丙烯聚合物溶解在沸腾的二甲苯中，然后冷却 该溶液以10℃/ h至25℃的冷却速率，然后升高温度，将丙烯聚合物分离成不同溶解度的分数，其中的一种或多种条件为：超过20重量％ 的基质在进一步加热至112°C时仍未溶解。或）在基于进一步加热至117℃时，基质重量不得超过8％。或者，更多加热时，大于1重量％的基质仍然不溶解 至122℃，通过在将冷却的丙烯聚合物溶液加热至80℃时仍未溶解的基质来实现，制备丙烯聚合物的方法，其用于p 描述了膜，纤维或模制品的引导以及包含这些丙烯聚合物的膜，纤维或模制品。

    Catalyst systems of the Ziegler-Natta type
    4.
    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
    6.
    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。

    Dispersion polymerization in the presence of metallocene catalyst
    8.
    发明授权
    Dispersion polymerization in the presence of metallocene catalyst 失效
    在茂金属催化剂存在下进行分散聚合

    公开(公告)号：US06221983B1

    公开(公告)日：2001-04-24

    申请号：US09068307

    申请日：1998-05-07

    申请人： Michael Geprägs ,  Josef Wünsch ,  Joachim Rösch

    发明人： Michael Geprägs ,  Josef Wünsch ,  Joachim Rösch

    IPC分类号： C08F208

    CPC分类号： C08F212/04 ,  C08F4/61912 ,  C08F4/6192 ,  C08F210/02 ,  C08F212/08 ,  C08F2500/03

    摘要： The present invention is a process of preparing copolymers of vinyl aromatic and olefinic monomers wherein the polymerization is carried out in a dispersion in the presence of a metallocene catalyst and a dispersion aid. The dispersion aid is a styrene-diene two-block copolymer or a styrene-diene three-block copolymer. The resultant polymer is useful as a fiber, film or molding.

    摘要翻译： 本发明是一种制备乙烯基芳族和烯烃单体的共聚物的方法，其中聚合在茂金属催化剂和分散助剂的存在下在分散体中进行。 分散助剂是苯乙烯 - 二烯二嵌段共聚物或苯乙烯 - 二烯三嵌段共聚物。 所得聚合物可用作纤维，薄膜或模塑。