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180 条记录 (耗时 0.023 秒)

    Method for producing a polyolefin
    22.
    发明授权
    Method for producing a polyolefin 失效
    聚烯烃的制造方法

    公开(公告)号：US5594079A

    公开(公告)日：1997-01-14

    申请号：US601473

    申请日：1996-02-14

    申请人： Daiji Hara ,  Masahiro Adachi ,  Mitsuhiro Mori

    发明人： Daiji Hara ,  Masahiro Adachi ,  Mitsuhiro Mori

    IPC分类号： C08F4/658 ,  C08F4/60 ,  C08F4/646 ,  C08F10/00 ,  C08F4/653 ,  C08F4/655 ,  C08F10/06

    CPC分类号： C08F10/00

    摘要： A method for producing a stereoregular polyolefin in the presence of a catalyst comprising a transition metal compound and an organometallic compound, which comprises polymerizing at least one olefin in the presence of a catalyst system comprising:(A) a solid catalyst component comprising Mg, Ti, halogen and an electron donative compound,(B) at least one member selected from the group consisting of organometallic compounds of metals of Groups IA, IIA, IIB, IIIB and IVB of the Periodic Table,(C) an electron donative compound, and(D) a boron compound of the formula R.sup.1.sub.n BX.sub.3-n wherein R.sup.1 is a hydrocarbon group and/or a halogenated hydrocarbon group, X is a halogen atom, and 0.ltoreq.n.ltoreq.3.

    摘要翻译： 一种在包含过渡金属化合物和有机金属化合物的催化剂存在下制备立构规则聚烯烃的方法，其包括在催化剂体系存在下聚合至少一种烯烃，所述催化剂体系包含：（A）包含Mg，Ti ，卤素和给电子化合物，（B）选自元素周期表第IA，IIA，IIB，IIIB和IVB族金属的有机金属化合物中的至少一种，（C）给电子化合物，和 （D）式R1nBX3-n的硼化合物，其中R1是烃基和/或卤代烃基，X是卤素原子，且0

    Process for producing high stiffness polypropylene
    24.
    发明授权
    Process for producing high stiffness polypropylene 失效
    高刚性聚丙烯生产工艺

    公开(公告)号：US5532325A

    公开(公告)日：1996-07-02

    申请号：US545232

    申请日：1995-10-19

    申请人： Takahiro Oka ,  Hiromasa Chiba

    发明人： Takahiro Oka ,  Hiromasa Chiba

    IPC分类号： C08F4/64 ,  C08F4/60 ,  C08F4/649 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08F4/655

    CPC分类号： C08F10/06 ,  C08F110/06

    摘要： A process for producing polypropylene is provided which comprises polymerizing propylene in multiple stages, in the presence of a catalyst which is prepared by reacting a first organoaluminum compound (i), or a reaction product (vi) formed between the first organoaluminum compound (i) and an electron donor (a), with titanium tetrachloride (c) to obtain a first solid product (ii), reacting the resulting first solid product (ii) with the electron donor (a) and an electron acceptor (b) to obtain a second solid product (iii), and combining the resulting second solid product (iii) with a second organoaluminum compound (iv) and an aromatic carboxylic acid ester (v) at a molar ratio of the aromatic carboxylic acid ester to the second solid product (v/iii molar ratio) of from 0.1 to 10.0, in such a manner that from 10 to 90% by weight of the total polymer is produced in a first stage and the balance of the total polymer is produced in a second and any subsequent stages with the v/iii molar ratio of the catalyst being made higher in the second and any subsequent stages than that in the catalyst used in the first stage by adding the aromatic carboxylic acid ester (v) to the polymerization system so as to give 1.ltoreq.v/iii molar ratio.ltoreq.10, while controlling the melt flow rate (MFR) of a polymer portion produced in each of the first and any subsequent stages so as to satisfy the relationships:0.5

    摘要翻译： 提供了一种生产聚丙烯的方法，其包括在催化剂存在下，多级聚合丙烯，所述催化剂是通过使第一有机铝化合物（i）或形成在第一有机铝化合物（i）之间的反应产物（vi） 和电子给体（a）与四氯化钛（c）反应以获得第一固体产物（ii），使得到的第一固体产物（ii）与电子给体（a）和电子受体（b）反应，得到 第二固体产物（iii），并将所得第二固体产物（iii）与第二有机铝化合物（iv）和芳族羧酸酯（v）以芳族羧酸酯与第二固体产物（的摩尔比） v / iii摩尔比）为0.1至10.0，使得在第一阶段中产生总聚合物的10至90重量％，并且总聚合物的余量在第二和任何后续阶段中产生 与v / iii摩尔大鼠 在第二阶段和任何后续阶段中催化剂的io比在第一阶段中使用的催化剂中更高，通过向聚合体系中加入芳族羧酸酯（ⅴ）以便得到1 / v /ⅲ摩尔 比率为10，同时控制在第一阶段和任何后续阶段中产生的聚合物部分的熔体流动速率（MFR），以满足以下关系：0.5

    Titanium catalyst component for ethylene polymerization, ethylene polymerization catalyst, and process for ethylene polymerization using the same
    25.
    发明授权
    Titanium catalyst component for ethylene polymerization, ethylene polymerization catalyst, and process for ethylene polymerization using the same 失效
    用于乙烯聚合的钛催化剂组分，乙烯聚合催化剂和使用其的乙烯聚合方法

    公开(公告)号：US5468703A

    公开(公告)日：1995-11-21

    申请号：US130789

    申请日：1993-10-04

    申请人： Mamoru Kioka ,  Tsuneo Yashiki

    发明人： Mamoru Kioka ,  Tsuneo Yashiki

    IPC分类号： C08F10/00 ,  C08F4/642 ,  C08F4/651 ,  C08F4/654 ,  C08F4/655 ,  C08F4/658 ,  C08F10/02 ,  C08F110/02 ,  B01J31/00 ,  C08F4/02

    CPC分类号： C08F10/02 ,  C08F10/00 ,  C08F110/02 ,  Y10S526/904

    摘要： Disclosed is a titanium catalyst component for ethylene polymerization obtained by contacting [A] a solid magnesium aluminum complex containing magnesium, halogen, aluminum and an alkoxy group and/or alcohol having at least 6 carbon atoms, with [B] a tetravalent titanium compound. The solid magnesium aluminum complex [A] is obtained by contacting (a-1) a magnesium solution formed from a halogen-containing magnesium compound, an alcohol having at least 6 carbon atoms and a hydrocarbon solvent, with (a-2) an organoaluminum compound. Also disclosed is a process for ethylene polymerization comprising polymerizing ethylene or copolymerizing ethylene with an .alpha.-olefin having 3 to 20 carbon atoms in the presence of a catalyst for ethylene polymerization comprising [I] the above-mentioned titanium catalyst component for ethylene polymerization and [II] an organoaluminum compound catalyst component.

    摘要翻译： 公开了通过使[A]含有镁，卤素，铝和具有至少6个碳原子的烷氧基和/或醇的固体镁铝络合物与[B]四价钛化合物接触而获得的用于乙烯聚合的钛催化剂组分。 固体镁铝络合物[A]通过使（a-1）由含卤素的镁化合物形成的镁溶液，具有至少6个碳原子的醇和烃溶剂与（a-2）有机铝 复合。 还公开了一种乙烯聚合方法，其包括在乙烯聚合催化剂存在下聚合乙烯或使乙烯与具有3-20个碳原子的α-烯烃共聚，其中包括[I]上述用于乙烯聚合的钛催化剂组分和[ II]有机铝化合物催化剂组分。

    Olefin polymerization catalyst
    26.
    发明授权
    Olefin polymerization catalyst 失效
    烯烃聚合催化剂

    公开(公告)号：US5371157A

    公开(公告)日：1994-12-06

    申请号：US852044

    申请日：1992-03-16

    申请人： Robert C. Job

    发明人： Robert C. Job

    IPC分类号： C08F4/60 ,  C08F4/654 ,  C08F4/655 ,  C08F4/656 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： A high activity olefin polymerization catalyst, useful in the polymerization of lower .alpha.-olefins, comprises the solid product resulting from contacting a complex magnesium-containing, titanium-containing alkoxide compound with alkylaluminum halide, optionally employed in conjunction with a selectivity control agent.

    摘要翻译： 可用于低级α-烯烃聚合的高活性烯烃聚合催化剂包括通过与选择性控制剂结合使用的使含有复合的含镁钛的烷氧基化合物与烷基卤化铝接触而得到的固体产物。

    Catalytic composition for the polymerization of olefins and its process of preparation
    30.
    发明授权
    Catalytic composition for the polymerization of olefins and its process of preparation 失效
    用于烯烃聚合的催化组合物及其制备方法

    公开(公告)号：US5068014A

    公开(公告)日：1991-11-26

    申请号：US369229

    申请日：1989-06-22

    申请人： Jean M. Brusson ,  Karel Bujadoux ,  Francis Petit ,  Jean M. Fuchs ,  Andre Mortreux

    发明人： Jean M. Brusson ,  Karel Bujadoux ,  Francis Petit ,  Jean M. Fuchs ,  Andre Mortreux

    IPC分类号： C08F4/60 ,  C08F4/62 ,  C08F4/642 ,  C08F4/655 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： Process for the preparation of a catalytic composition for the polymerization of olefins. At least partial electrochemical oxidation of aluminum in a solvent of .alpha.,.omega.-dihalogeno-alkane and simultaneously the electrochemical reduction of a compound of titanium (IV) occur in process.The catalytic composition comprises at least one titanium compound, at least one halogenated organo-aluminum compound and at least one inorganic magnesium compound in suspension in at least one .alpha.,.omega.-dihalogeno-alkane. The titanium compound is essentially a titanium (III) compound. The overall content of titanium (II) and titanium (IV) is less than or equal to 15% of the total titanium content.

    摘要翻译： 制备烯烃聚合催化组合物的方法。 在α，ω-二卤代烷烃的溶剂中铝的至少部分电化学氧化，同时发生钛（IV）化合物的电化学还原。 所述催化剂组合物包含至少一种钛化合物，至少一种卤化有机铝化合物和至少一种α，ω-二卤代烷烃中悬浮液中的至少一种无机镁化合物。 钛化合物基本上是钛（III）化合物。 钛（II）和钛（IV）的总含量小于或等于总钛含量的15％。