High temperature ziegler-natta solution catalysts
    5.
    发明申请
    High temperature ziegler-natta solution catalysts 失效
    高温齐格勒 - 纳塔溶液催化剂

    公开(公告)号:US20030130108A1

    公开(公告)日:2003-07-10

    申请号:US10314796

    申请日:2002-12-09

    发明人: Isam Jaber

    IPC分类号: B01J031/00 C08F004/44

    摘要: The present invention provides a Ziegler-Natta catalyst useful in solution processes for the polymerization of olefins having a low amount of aluminum and magnesium. The catalysts of the present invention contain an alkyl silanol and have a molar ratio of Si:Ti from 0.25:1 to 4:1. The catalysts are effective for the solution polymerization of olefins at high temperatures.

    摘要翻译: 本发明提供了一种齐格勒 - 纳塔催化剂,其用于具有低量铝和镁的烯烃聚合的溶液方法中。 本发明的催化剂含有烷基硅烷醇并且Si:Ti的摩尔比为0.25:1至4:1。 该催化剂对于在高温下烯烃的溶液聚合是有效的。

    Methods of making magnesium/transition metal alkoxide complexes and polymerization catalysts made therefrom
    6.
    发明授权
    Methods of making magnesium/transition metal alkoxide complexes and polymerization catalysts made therefrom 失效
    制备镁/过渡金属醇盐络合物和由其制备的聚合催化剂的方法

    公开(公告)号:US06511935B2

    公开(公告)日:2003-01-28

    申请号:US09877295

    申请日:2001-06-08

    IPC分类号: C08F4654

    摘要: A method of halogenating a precursor to form a polymerization procatalyst is disclosed whereby a magnesium/transition metal-containing alkoxide complex precursor is contacted with a halogenating agent selected from alkylaluminum halide, TiX4, SiX4, BX3, and Br2, where halide and X are reach respectively a halogen, and when an alkylaluminum halide, TiX4, SiX4, BX3, and Br2 are used as the halogenating agent, they are used together or in combination in a multi-step halogenation. The procatalyst then can be converted to an olefin polymerization catalyst by contacting it with a cocatalyst and optionally a selectivity control agent, and used to polymerize olefins in high yield with desired properties.

    摘要翻译: 公开了卤化前体以形成聚合主催化剂的方法,其中使含镁/过渡金属的醇盐配合物前体与卤化物卤化物,TiX 4,SiX 4,BX 3和Br 2的卤化剂接触,其中卤化物和X达到 分别为卤素,当卤化烷基铝,TiX4,SiX4,BX3和Br2用作卤化剂时,它们可以一起使用或以多步卤化的方式组合使用。 然后可以将前催化剂通过与助催化剂和任选的选择性控制剂接触而转化为烯烃聚合催化剂,并用于以高产率和所需性能聚合烯烃。