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    Olefin polymerization catalyst and process for producing ethylene copolymers
    1.
    发明公开
    Olefin polymerization catalyst and process for producing ethylene copolymers 失效
    Katalysatorfürdie Olefinpolymerisation und Verfahren zur Herstellung von Ethylencopolymeren。

    公开(公告)号：EP0397122A2

    公开(公告)日：1990-11-14

    申请号：EP90108672.8

    申请日：1990-05-08

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Miyoshi, Yoshihiro ,  Shiraishi, Hiroyuki ,  Ebara, Takeshi ,  Sasaki, Toshio ,  Kawai, Kiyoshi

    IPC分类号： C08F4/656 ,  C08F210/02

    CPC分类号： C08F10/00 ,  C08F4/6567

    摘要： An olefin polymerization catalyst comprising:

    (A) a solid catalyst component containing a tri­valent titanium, which is represented by the composition formula
    Mg m Ti(OR) n X p [ED] q
    (wherein R is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen, ED is a electron donative compound, and m, n, p and q are each a number satisfying 1 ≦ m ≦ 51, 0 a X 4-a (wherein R¹ is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom and a is a number satisfying 0
    (B) an organoaluminum compound,
    and a process for producing an ethylene copolymer using the same.

    摘要翻译： 一种烯烃聚合催化剂，其包含：（A）含有三价钛的固体催化剂组分，其由组成式MgmTi（OR）nXp [ED] q表示（其中R是具有1至20个碳原子的烃基，X是 卤素，ED是供电子化合物，m，n，p和q各自为满足1≤1，...，0

    Process for producing olefin polymers
    3.
    发明公开
    Process for producing olefin polymers 失效
    Verfahren zur Herstellung von聚烯烃。

    公开(公告)号：EP0539937A1

    公开(公告)日：1993-05-05

    申请号：EP92118412.3

    申请日：1992-10-28

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Miyoshi, Yoshihiro ,  Shiraishi, Hiroyuki ,  Kawai, Kiyoshi ,  Koga, Hideaki

    IPC分类号： C08F4/649 ,  C08F10/00

    CPC分类号： C08F10/00 ,  Y10S526/901 ,  Y10S526/904 ,  C08F4/6492

    摘要： A process for producing an olefin polymer which comprises homopolymerizing or copolymerizing an olefin in a gas phase by using a catalyst system comprising the following components A) and B):

    A) a solid catalyst component prepared by immobilizing a catalyst component comprising at least titanium, magnesium, halogen and an electron-donative compound on a porous polymer material, said solid catalyst component satisfying the following conditions (a), (b) and (c):

    (a) ethylene is preliminarily polymerized thereon in an amount of 50-200 g per gram of the component previously immobilized on the porous polymer material.
    (b) the preliminary polymerization of ethylene is carried out at most at a rate of 3 g/g-immobilized component·hour at least until the quantity of the preliminarily polymerized ethylene reaches 5 g/g-immobilized component, and
    (c) the preliminarily polymerized ethylene polymer has an intrinsic viscosity [η] of 0.5 dl/g to 2.5 dl/g as measured in tetralin at 135°C; and

    B) an organoaluminum compound.

    Thus, an olefin polymer small in the extent of adhesion to polymerization reactor, small in the number of fish-eyes, low in the content of fine powder, high in bulk density and good in fluidity could be produced.

    摘要翻译： 一种制备烯烃聚合物的方法，其包括通过使用包含以下组分A）和B）的催化剂体系在气相中均聚或共聚烯烃：A）固体催化剂组分，其通过将至少包含钛， 镁，卤素和电子给体化合物，所述固体催化剂组分满足以下条件（a），（b）和（c）：（a）乙烯在其上预先聚合的量为50-200 g每克以前固定在多孔聚合物材料上的组分。 （b）乙烯的预聚合最多以3g / g固定成分+/-小时的速度进行，至少直至预聚乙烯的量达到5g / g固定成分为止，（c） 预聚合的乙烯聚合物在135℃下在四氢化萘中测得的特性粘度ÄhÜ为0.5dl / g至2.5dl / g; 和B）有机铝化合物。 因此，可以产生在聚合反应器附着程度小，鱼眼数量小，细粉含量低，体积密度高，流动性好的烯烃聚合物。

    Process for producing ethylene-alpha-olefin copolymers
    4.
    发明公开
    Process for producing ethylene-alpha-olefin copolymers 失效
    Verfahren zur产品von Ethylen-alpha-olefincopolymeren。

    公开(公告)号：EP0509233A2

    公开(公告)日：1992-10-21

    申请号：EP92104168.7

    申请日：1992-03-11

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Sasaki, Toshio ,  Johoji, Hirofumi ,  Shiraishi, Hiroyuki ,  Miyoshi, Yoshihiro

    IPC分类号： C08F210/02 ,  C08F4/642

    CPC分类号： C08F210/16 ,  C08F4/642 ,  C08F4/64 ,  C08F4/6428

    摘要： A process for producing an ethylene-α-olefin copolymer which comprises copolymerizing ethylene and an α-olefin at a temperature higher than 120°C by using a catalyst system comprising a specified titanium amide compound represented by general formula (R¹R²N) 4-n TiY n and an oxygen-containing alkylaluminum compound. According to the above process, there can be obtained ethylene-α-olefin copolymers narrow in composition distribution, high in molecular weight and excellent in weather resistance, colorizability, corrosion resistance and dynamic properties.

    摘要翻译： 一种制备乙烯-α-烯烃共聚物的方法，其包括使用包含由通式（R 1 R'）表示的特定钛酰胺化合物的催化剂体系在高于120℃的温度下共聚乙烯和α-烯烃， 2N）4-nTiYn和含氧烷基铝化合物。 根据上述方法，可以得到组合物分布窄，分子量高，耐候性，着色性，耐腐蚀性和动态性能优异的乙烯-α-烯烃共聚物。