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    • 1. 发明申请
    • SUPPORTED HIGH ACTIVITY POLYOLEFIN CATALYST COMPONENT WITH REGULAR DISTRIBUTION OF MAGNESIUM VALUES PROVIDED UTILIZING A CONTROLLED DRYING PROTOCOL
    • 支持的高活性聚烯烃催化剂组分,通过使用控制干燥协议提供的镁值的定期分布
    • WO1993000368A1
    • 1993-01-07
    • PCT/US1992005069
    • 1992-06-19
    • QUANTUM CHEMICAL CORPORATION
    • QUANTUM CHEMICAL CORPORATIONBUEHLER, Charles, K.MASINO, Albert, P.MENON, Raghu
    • C08F04/654
    • C08F10/00C08F4/6565C08F4/6567C08F4/6578
    • A novel catalyst support and a method for preparation thereof, characterized by the presence of selected amounts of a hydrocarbon soluble magnesium-containing compound applied to the support relative to solvent, wherein a surface uniformly and essentially continuously moistened with the solvated magnesium compound is achieved in a condition of incipient precipitation to permit the formation of a regular essentially continuous distribution of the magnesium compound onto and conforming to the support material. The drying process under these conditions is effective in maintaining to a high degree the effective surface area and pore volume of the material. The support containing the adsorbed magnesium in then dried in a controlled manner to essential incipient wetness conditions providing a regular spatial distribution of stacked reticular magnesium values at a level of one to five molecular monolayers on the support. A representative process for polymerizing or copolymerizing olefins providing stereospecific polymers such as propylene is disclosed.
    • 一种新颖的催化剂载体及其制备方法,其特征在于相对于溶剂存在选择量的可溶于烃的可溶性镁化合物,其中用溶剂化镁化合物均匀且基本上连续润湿的表面在 初始沉淀的条件允许形成规则的基本上连续的镁化合物分布到载体材料上并与之相符合。 在这些条件下的干燥过程有效地保持材料的有效表面积和孔体积的高度。 含有吸附的镁的载体以受控的方式干燥以达到必需的初始湿度条件,从而提供在载体上1-5个分子单层水平的堆叠网状镁值的规则空间分布。 公开了提供立体特异性聚合物如丙烯的烯烃聚合或共聚的代表性方法。