A method for producing olefin polymers
    1.
    发明公开
    A method for producing olefin polymers 失效
    一种生产烯烃聚合物的方法

    公开(公告)号:EP0371411A3

    公开(公告)日:1992-03-18

    申请号:EP89121758.0

    申请日:1989-11-24

    IPC分类号: C08F4/68 C08F10/00 C08F4/629

    摘要: A method for producing olefin polymers by using a catalyst system comprising
    catalyst component (A): a vanadium compound represented by the formula VOX₃ in which X represents a halogen atom, or VO(OR)₃ in which R represents a C₁-C₂₀ hydrocarbon group,
    catalyst component (B): an aluminoxane obtained by the reaction of a trialkylaluminum with water, or a mixture of said aluminoxane and an aluminum compound represented by the formula AlR′ n X′ 3-n in which R′ represents a C₁-C₁₀ alkyl group, X′ represents a hlaogen atom and n represents a number selected from 0, 1, 2 and 3, and optionally
    catalyst component (C): an organic compound having at least two hydroxyl groups.

    Crystalline polypropylene and compositions thereof
    5.
    发明公开
    Crystalline polypropylene and compositions thereof 无效
    Kristallines Polypropylen und daraus gefertigte Zusammensetzungen。

    公开(公告)号:EP0368577A2

    公开(公告)日:1990-05-16

    申请号:EP89311433.0

    申请日:1989-11-03

    IPC分类号: C08L23/10

    摘要: A crystalline polypropylene has a ratio of weight average molecular weight to number average molecular weight of 10 or more, preferably 15 or more, an intrinsic viscosity (η) of from 0.8 to 5.0 dl/g (measured in tetralin at 135°C), a cold xylene-soluble content of not more than 4% by weight, a density (d) of 0.910 g/cm or more (measur­ed at 23°C), and a long period (L) (Å) (measured at 25°C by a small-angle X-ray scattering method) satisfying:
    L ≦ Lc = 6667d - 5894
    wherein d is the density at 23°C and Lc is a value (Å) obtained by Lc =6667d - 5894.
    The crystalline polymer can be compounded with 1 ppm to 20 wt% of an alpha-olefin or vinylcyloalkane whose homo­polymer melts at at least 270°C, the composition produced having (d) and (L) as above; part of the composition can be block copolymerized.
    Catalysts for producing the polymer are described.
    The product as a powder is melted and moulded to shape. The mouldings have good rigidity, heat resistance and surface hardness.

    摘要翻译: 结晶性聚丙烯的重均分子量与数均分子量的比例为10以上,优选为15以上,特性粘度(η)为0.8〜5.0dl / g(在135℃的四氢化萘中测定), 冷二甲苯可溶物含量不超过4重量%,密度(d)为0.910g / cm 3以上(在23℃下测定)和长时间(L)(ANGSTROM)(25℃测定) C,通过小角X射线散射法)满足:L <= Lc = 6667d-5894其中d是23℃下的密度,Lc是通过Lc = 6667d-5894获得的值(ANGSTROM)。结晶 聚合物可以与1ppm至20wt%的均聚物在至少270℃熔融的α-烯烃或乙烯基环烷烃混合,所制备的组合物具有如上所述的(d)和(L); 组合物的一部分可以是嵌段共聚的。 描述了用于生产聚合物的催化剂。 将作为粉末的产品熔化并模塑成型。 模具具有良好的刚性,耐热性和表面硬度。

    A method for producing olefin polymers
    9.
    发明公开
    A method for producing olefin polymers 失效
    一种生产烯烃聚合物的方法

    公开(公告)号:EP0371411A2

    公开(公告)日:1990-06-06

    申请号:EP89121758.0

    申请日:1989-11-24

    IPC分类号: C08F4/68 C08F10/00 C08F4/629

    摘要: A method for producing olefin polymers by using a catalyst system comprising
    catalyst component (A): a vanadium compound represented by the formula VOX₃ in which X represents a halogen atom, or VO(OR)₃ in which R represents a C₁-C₂₀ hydrocarbon group,
    catalyst component (B): an aluminoxane obtained by the reaction of a trialkylaluminum with water, or a mixture of said aluminoxane and an aluminum compound represented by the formula AlR′ n X′ 3-n in which R′ represents a C₁-C₁₀ alkyl group, X′ represents a hlaogen atom and n represents a number selected from 0, 1, 2 and 3, and optionally
    catalyst component (C): an organic compound having at least two hydroxyl groups.

    摘要翻译: 一种通过使用包含催化剂组分(A)的催化剂体系生产烯烃聚合物的方法:其中X表示卤素原子的式VOX 3表示的钒化合物或其中R表示C 1 -C 20烃基的VO(OR)3 ,催化剂组分(B):由三烷基铝的与水的反应,或所述的混合物获得铝氧烷的铝氧烷和由式AlR'nX'3-n表示的铝化合物,其中R'表示C 1 -C 10烷基 基团,X'表示一种羟基原子并且n表示选自0,1,2和3的数字,并且任选地催化剂组分(C):具有至少两个羟基的有机化合物。