Catalysts for polymerization of &agr;-olefins, process for producing &agr;-olefin polymers, novel transition metal compounds and catalyst components for polymerization of &agr;-olefin
    4.
    发明授权
    Catalysts for polymerization of &agr;-olefins, process for producing &agr;-olefin polymers, novel transition metal compounds and catalyst components for polymerization of &agr;-olefin 有权
    用于α-烯烃聚合的催化剂,用于生产α-烯烃聚合物的方法,用于α-烯烃聚合的新型过渡金属化合物和催化剂组分

    公开(公告)号:US06590045B2

    公开(公告)日:2003-07-08

    申请号:US09966068

    申请日:2001-10-01

    IPC分类号: C08F442

    摘要: Catalysts for polymerization of &agr;-olefin, composed of a transition metal compound, an inorganic silicate or an ion exchangeable layer compound other than silicate, and optionally an organoaluminum compound, are described. The transition metal compound is represented by formula (I): where A1 and A2 are each independently a conjugated 5-membered ring ligand provided that A1 and A2 may be the same or different in a molecule, and at least one of A1 and A2 forms a 7- to 10-membered condensed ring including two adjacent carbon atoms of the conjugated 5-membered ring, which condensed ring is formed by joining two adjacent substitutent groups on the conjugated 5-membered ring; Q is a bridging group of the two conjugated 5-membered rings of A1 and A2 at optional positions of the 5-membered rings; M is a metal atom selected from elements of Group 4-6 of the Periodic Table; and X and Z are each independently a hydrogen atom, a halogen atom, a hydrocarbon group, and amino group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a nitrogen-containing hydrocarbon group, a phosphorus-containing hydrocarbon group or a silicon-containing hydrocarbon group.

    摘要翻译: 描述了由过渡金属化合物,无机硅酸盐或除了硅酸盐之外的可离子交换层化合物以及任选的有机铝化合物组成的α-烯烃聚合催化剂。 过渡金属化合物由式(I)表示:其中A1和A2各自独立地为共轭五元环配体,条件是A1和A2在分子中可以相同或不同,并且A1和A2中的至少一个形成 包含共轭五元环的两个相邻碳原子的7-至10-元稠环,所述稠合环通过连接共轭五元环上的两个相邻的取代基而形成; Q是在5元环的任选位置的A1和A2的两个共轭五元环的桥连基团; M是选自元素周期表第4-6组元素的金属原子; X和Z各自独立地为氢原子,卤素原子,烃基和氨基,卤代烃基,含氧烃基,含氮烃基,含磷烃基或 含硅烃基。

    Catalyst component for the polymerization of .alpha.-olefins and a
process for preparing .alpha.-olefin polymers with use of same
    5.
    发明授权
    Catalyst component for the polymerization of .alpha.-olefins and a process for preparing .alpha.-olefin polymers with use of same 失效
    用于α-烯烃聚合的催化剂组分和使用其制备α-烯烃聚合物的方法

    公开(公告)号:US5594081A

    公开(公告)日:1997-01-14

    申请号:US504825

    申请日:1995-07-20

    摘要: The present invention provides a catalyst for polymerizing an .alpha.-olefin which is capable of producing an .alpha.-olefin polymer having a high molecular weight in a high yield under the polymerization conditions including at high temperature, and a process for preparing an .alpha.-olefin polymer, which catalyst comprises a Component (A) which comprises a coordination compound having a skeleton of a metallocene compound comprising an indenyl ring or a hydroindenyl ring which is an indenyl having a six-membered portion hydrogenated as a ligand and having Ti, Zr or Hf as a metal component in combination with a Component (B) which is, for example, an alumoxane. The coordination compound is crosslinked at the six-membered rings characterized by the fact that two of the indenyl or hydroindenyl groups are crosslinked at the six-membered ring of the indenyl or hydroindenyl group.

    摘要翻译: 本发明提供了一种用于聚合α-烯烃的催化剂,其能够在包括高温的聚合条件下以高产率生产具有高分子量的α-烯烃聚合物,以及制备α-烯烃聚合物的方法 ,该催化剂包含组分(A),其包含具有包含茚基环的茂金属化合物的骨架的配位化合物或作为配体氢化的六元部分的具有Ti,Zr或Hf的茚基的茚环 作为与例如铝氧烷的组分(B)组合的金属组分。 配位化合物在六元环交联,其特征在于茚基或茚基中的两个在茚基或氢茚基的六元环上交联。

    Propylene block copolymer and propylene resin composition
    10.
    发明授权
    Propylene block copolymer and propylene resin composition 有权
    丙烯嵌段共聚物和丙烯树脂组合物

    公开(公告)号:US06825280B1

    公开(公告)日:2004-11-30

    申请号:US09485189

    申请日:2000-02-07

    IPC分类号: C08L2310

    摘要: Disclosed are a propylene polymer composition possessing excellent balance among rigidity and low warpage, resistance to deterioration caused by thermal oxidation during processing, weathering resistance, antistatic properties, and low bleeding properties, and a propylene resin composition which can easily produce molded products having excellent balance between rigidity and impact resistance (particularly low-temperature impact resistance) or heat resistance. The propylene polymer composition and the propylene resin composition comprise a propylene block copolymer consisting essentially of the following blocks (a) and (b) and having a melt flow rate of 0.1 to 200 g/10 min: block (a): a polymer block of a homopolymer of propylene or a random copolymer of propylene with a comonomer selected from the group consisting of ethylene and C4-C20 &agr;-olefins, the content of the comonomer being not more than 10% by mole; and block (b): a polymer block of a random copolymer of propylene with at least one comonomer selected from the group consisting of ethylene and C4-C20 &agr;-olefins, the content of the comonomer being 10 to 80% by mole, the average chain length of the comonomer block and the gross average chain length of the comonomer having a relationship represented by formula (I) nb≦n+1.5  (I) wherein nb represents the average chain length of the comonomer block; and n represents the gross average chain length of the comonomer.

    摘要翻译: 公开了在刚性和低翘曲之间具有优异的平衡性,耐加工中的热氧化,耐候性,抗静电性和低渗透性的耐劣化性的丙烯聚合物组合物,以及可以容易地制备具有优异平衡性的模塑产品的丙烯树脂组合物 刚性和抗冲击性(特别是低温耐冲击性)或耐热性。 丙烯聚合物组合物和丙烯树脂组合物包含基本上由以下嵌段(a)和(b)组成并且熔体流动速率为0.1至200g / 10min的丙烯嵌段共聚物:嵌段(a):聚合物嵌段 的丙烯均聚物或丙烯与选自乙烯和C 4 -C 20α-烯烃的共聚单体的无规共聚物,共聚单体的含量不超过10摩尔% 和嵌段(b):丙烯与至少一种选自乙烯和C 4 -C 20α-烯烃的共聚单体的无规共聚物的聚合物嵌段,共聚单体的含量为10〜80摩尔%,平均链 共聚单体嵌段的长度和由式(I)表示的关系的共聚单体的总平均链长,其中nb表示共聚单体嵌段的平均链长; n表示共聚单体的总平均链长。