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    • 1. 发明专利
    • SUPPORTED POLYMERIZATION CATALYST
    • AU634884B2
    • 1993-03-04
    • AU7663891
    • 1991-03-25
    • QUANTUM CHEMICAL CORPORATION
    • CHARLES K. BUEHLERDOUGLAS D. KLENDWORTH
    • C08F4/642C08F4/60C08F4/685C08F10/00
    • A catalyst useful in the polymerization of olefins is disclosed. The catalyst is produced by initially treating an inert inorganic compound to remove surface hydroxy groups. The thus treated inorganic compound is contacted with a hydrocarbon soluble magnesium compound in a second step. The product of this second step is contacted with a modifying compound selected from the group consisting of silicon halides, boron halides, aluminum halides, alkyl silicon halides, hexaalkyl disilazanes and mixtures thereof in a third step. The product of this third step is contacted a vanadium compound having the structured formula V(O)sX14-s, where X1 is halogen; and s is 0 or 1, a first titanium-containing compound having the structural formula Ti(OR2)nX2m, where R2 is hydrocarbyl; X2 is halogen; n is an integer of 1 to 4; and m is 0 or an integer of 1 to 3, with the proviso that the sum of n and m is 4, and a second titanium-containing compound having the structural formula TiX3(OR3)q, where X3 is halogen; R3 is hydrocarbyl; p is an integer of 1 to 4; and q is 0 or an integer of 1 to 3, with the proviso that the sum of p and q is 4 and that the first and the second titanium-containing compounds are not identical. A process for polymerizing olefins, using the catalyst of this disclosure is also provided.
    • 5. 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。
    • 6. 发明申请
    • MIXED CHROMIUM CATALYSTS AND POLYMERIZATIONS UTILIZING SAME
    • 混合的铬催化剂和使用它们的聚合物
    • WO1992017511A1
    • 1992-10-15
    • PCT/US1992002337
    • 1992-03-18
    • QUANTUM CHEMICAL CORPORATION
    • QUANTUM CHEMICAL CORPORATIONKATZEN, Stanley, J.PULLUKAT, Thomas, J.LYNCH, Michael, W.REKERS, Louis, J.
    • C08F04/648
    • C08F10/00C08F110/02C08F2410/04C08F4/22C08F4/69C08F2500/12C08F2500/07C08F2500/13C08F4/025
    • Mixed catalyst compositions comprised of a first supported chromium-containing catalyst component and a second supported chromium-containing catalyst component and which additionally have one or more metallic or non-metallic catalytic agents associated therewith are provided. The additional metallic or non-metallic elements associated with the catalyst components can be aluminium, titanium, zirconium, boron, phosphorous or combinations thereof. The pore volume of the silica supports used for the first and second catalyst components differs by at least 0.3 cc/g. The mixed catalyst compositions of the invention are useful for the preparation of polyolefins. They are particularly useful of polymerization of ethylene in particle form polymerizations to produce high density polyethylene blow molding resins having good processability and physical properties. The improved particle form polymerizations process and products obtained thereby using the above-described mixed catalyst compositions are also described.
    • 提供由第一负载的含铬催化剂组分和第二负载的含铬催化剂组分组成的并且另外具有与其相关的一种或多种金属或非金属催化剂的混合催化剂组合物。 与催化剂组分相关的另外的金属或非金属元素可以是铝,钛,锆,硼,磷或它们的组合。 用于第一和第二催化剂组分的二氧化硅载体的孔体积至少为0.3cc / g。 本发明的混合催化剂组合物可用于制备聚烯烃。 它们特别可用于以颗粒形式聚合的乙烯聚合,以生产具有良好加工性能和物理性能的高密度聚乙烯吹塑树脂。 还描述了改进的颗粒形式聚合方法和由此使用上述混合催化剂组合物获得的产物。