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128 条记录 (耗时 0.03 秒)

    Catalysts for homo- and copolymerization of ethylene and the polymers obtained by use thereof
    92.
    发明授权
    Catalysts for homo- and copolymerization of ethylene and the polymers obtained by use thereof 失效
    用于乙烯均聚和共聚的催化剂和通过其使用得到的聚合物

    公开(公告)号：US4695558A

    公开(公告)日：1987-09-22

    申请号：US713557

    申请日：1985-03-19

    申请人： Enrico Albizzati ,  Enrico Pettenati ,  Umberto Zucchini ,  Illaro Cuffiani

    发明人： Enrico Albizzati ,  Enrico Pettenati ,  Umberto Zucchini ,  Illaro Cuffiani

    IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F4/658 ,  C08F10/00 ,  C08F10/02 ,  C08F210/00 ,  C08F210/16

    CPC分类号： C08F10/00

    摘要： Disclosed are catalysts for the polymerization of ethylene and of mixtures thereof with olefins, comprising the product obtained by reacting the following components:(a) an Al-alkyl compound;(b) an electron-donor compound containing at least a nitrogen atom, said compound being reactive towards MgCl.sub.2, but not towards Al-triethyl; and(c) the reaction product between a titanium compound containing at least a titanium-halogen bond and an anhydrous magnesium halide.The obtained (co)polymers have a very narrow molecular weight distribution which renders them particularly suitable for some applications, such as injection molding.

    摘要翻译： 公开了用于乙烯及其与烯烃的混合物的聚合的催化剂，其包括通过使以下组分反应获得的产物：（a）Al-烷基化合物; （b）至少含有氮原子的电子给体化合物，所述化合物对MgCl 2是反应性的，但不对三乙基铝反应; 和（c）至少含有钛 - 卤素键的钛化合物与无水卤化镁之间的反应产物。 获得的（共）聚合物具有非常窄的分子量分布，使得它们特别适用于一些应用，例如注射成型。

    Components and catalysts for the polymerization of olefins
    93.
    发明授权
    Components and catalysts for the polymerization of olefins 失效
    用于烯烃聚合的组分和催化剂

    公开(公告)号：US4522930A

    公开(公告)日：1985-06-11

    申请号：US465594

    申请日：1983-02-10

    申请人： Enrico Albizzati ,  Sandro Parodi ,  Pier C. Barbe

    发明人： Enrico Albizzati ,  Sandro Parodi ,  Pier C. Barbe

    IPC分类号： C08F4/00 ,  C08F4/02 ,  C08F4/60 ,  C08F4/64 ,  C08F4/658 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： Catalysts for the polymerization of alpha-olefins, which comprise the product of the reaction between:(a) a metalorganic compound of Al;(b) an electron-donor compound reactive towards MgCl.sub.2 but which is not completely complexed with AlEt.sub.3, at the equivalent point of a potentiometric titration under standard conditions;(c) a solid comprising a halogenated Ti compound and an electron-donor belonging to particular classes of compounds and being extractable with AlEt.sub.3 for at least 70% by mols from the solid, the surface area of which after extraction is higher than 20 m.sup.2 /g.The present invention refers to new supported components of catalysts for the polymerization of olefins CH.sub.2 .dbd.CHR, in which R is an alkyl with 1-14 carbon atoms or an aryl, and of mixtures of such olefins with each other and/or with ethylene, and to the catalysts obtained from such components.

    摘要翻译： 用于α-烯烃聚合的催化剂，其包括以下反应的产物：（a）Al的金属有机化合物; （b）在标准条件下在电位滴定的等效点处，与MgCl 2反应但不与AlEt3完全络合的电子给体化合物; （c）包含卤化Ti化合物和属于特定类别化合物的电子给体的固体，并且可与AlEt3一起从固体中提取至少70％的摩尔数，其提取后的表面积高于20m 2 / G。 本发明涉及用于烯烃CH 2 = CHR（其中R是具有1-14个碳原子的烷基或芳基）和这些烯烃与彼此和/或与乙烯的混合物的聚合的催化剂的新的负载组分， 和由这些组分获得的催化剂。

    Catalyst components and catalysts for polymerizing olefins
    94.
    发明授权
    Catalyst components and catalysts for polymerizing olefins 失效
    用于聚合烯烃的催化剂组分和催化剂

    公开(公告)号：US4464478A

    公开(公告)日：1984-08-07

    申请号：US428976

    申请日：1982-09-30

    申请人： Umberto Scata ,  Enrico Albizzati ,  Enzo Giannetti

    发明人： Umberto Scata ,  Enrico Albizzati ,  Enzo Giannetti

    IPC分类号： C08F4/00 ,  C08F4/02 ,  C08F4/60 ,  C08F4/64 ,  C08F4/654 ,  C08F10/00

    CPC分类号： C08F10/00 ,  C08F4/022

    摘要： Catalyst-forming components are prepared from(a) a halogenated Ti compound containing at least a Ti-halogen bond;(b) an electron-donor compound free of active hydrogen atoms;and(c) the solid product of the reaction between at least one electron-donor compound containing active hydrogen atoms and a Mg dihalide or a complex thereof with an electron-donor compound free of active hydrogen atoms, obtained by decomposing organic Mg compounds containing at least one Mg-R or Mg-OR group, in which R is an alkyl, aryl, cycloalkyl or alkenyl radical having 1 to 20 carbon atoms, by means of a halogenating agent different from (a).Catalysts for polymerizing olefins and prepared by mixing the aforesaid catalyst-forming components with an organometallic compound of Al are also disclosed.

    摘要翻译： 催化剂形成成分由（a）至少含有Ti-卤素键的卤化Ti化合物制备; （b）不含活性氢原子的电子给体化合物; 和（c）包含活性氢原子的至少一种电子给体化合物与二卤化镁或其配合物与不含活性氢原子的电子给体化合物之间的反应的固体产物，通过分解含有 至少一个Mg-R或Mg-OR基团，其中R是具有1至20个碳原子的烷基，芳基，环烷基或烯基，通过不同于（a）的卤化剂。 还公开了用于聚合烯烃并通过将上述催化剂形成组分与Al的有机金属化合物混合制备的催化剂。