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    • 1. 发明授权
    • Process for preparing polyolefin diblock copolymers involving borane chain transfer reaction in transition metal-mediated olefin polymerization
    • 在过渡金属介导的烯烃聚合中涉及硼烷链转移反应的聚烯烃二嵌段共聚物的制备方法
    • US06248837B1
    • 2001-06-19
    • US09359329
    • 1999-07-21
    • Tze-Chiang ChungGuangxue Xu
    • Tze-Chiang ChungGuangxue Xu
    • C08F29300
    • C08F293/00C08G63/00
    • Polyolefin diblock copolymers are prepared via a chain transfer reaction with a borane dimer compound during a transition metal-catalyzed olefin polymerization in a process that resembles a transformation from transition metal coordination polymerization to free radical polymerization via a borane end group. The polyolefin diblock copolymers may be represented by the following formula: (Transition Metal Prepared Polyolefin)-b-(Free Radical Prepared Polymer), wherein the polyolefin segment is a homo-, co- and ter-polymer prepared by transition metal (especially metallocene catalyst) coordination polymerization of at least one olefin, and the free radical prepared polymer segment is prepared by free radical polymerization of at least one vinyl monomer, such as styrene, maleic anhydride, acrylates, methacrylates and their mixtures. The resulting diblock copolymers are useful as the interfacial materials to improve the interaction between polyolefins and other materials.
    • 在过渡金属催化的烯烃聚合期间,通过与硼烷二聚体化合物的链转移反应,在类似于从过渡金属配位聚合转变成通过硼烷端基进行自由基聚合的方法中制备聚烯烃二嵌段共聚物。 聚烯烃二嵌段共聚物可以由下式表示:(过渡金属制备的聚烯烃)-b-(自由基制备的聚合物),其中聚烯烃链段是由过渡金属(特别是茂金属)制备的均聚物,共聚物和三聚物 催化剂)配位聚合,并且通过至少一种乙烯基单体如苯乙烯,马来酸酐,丙烯酸酯,甲基丙烯酸酯及其混合物的自由基聚合制备自由基制备的聚合物链段。 所得的二嵌段共聚物可用作界面材料以改善聚烯烃和其它材料之间的相互作用。
    • 5. 发明授权
    • Highly active alpha-olefin copolymerization catalyst system
    • 高活性α-烯烃共聚催化剂体系
    • US07618913B2
    • 2009-11-17
    • US11513803
    • 2006-08-31
    • Guangxue XuHonglan LuChih-Jian Chen
    • Guangxue XuHonglan LuChih-Jian Chen
    • C08F4/64C08F4/649C08F4/642
    • C08F10/00C08F210/16C08F4/6565C08F4/651C08F210/14C08F2500/12C08F210/08
    • A high activity magnesium-based supported catalyst component useful in a catalyst system for the compolymerization of ethylene and alpha-olefin and a process for preparing the catalyst component is described. In the process, alkoxysilane ester is contacted with a halogen-substituted silane to form an organic silicon complex. Optionally, the organic silicon complex is contacted with an aminosilane compound to form an organic silicon complex containing nitrogen. The organic silicon complex containing nitrogen or the organic silicon complex is contacted with a transition metal compound to form an organic silicon complex containing transition metal. The organic silicon complex containing transition metal is then contacted with a substituted aromatic ring nitrogen compound to form a fourth reaction complex, which is then contacted with a magnesium-based composite support that has been prepared in situ by reacting metallic magnesium with an alkyl or aromatic halide to form the catalyst component.
    • 描述了用于乙烯和α-烯烃的聚合的催化剂体系中的高活性镁基负载催化剂组分和制备催化剂组分的方法。 在此过程中,烷氧基硅烷酯与卤素取代的硅烷接触以形成有机硅络合物。 任选地,有机硅络合物与氨基硅烷化合物接触以形成含氮的有机硅络合物。 含有氮或有机硅络合物的有机硅配合物与过渡金属化合物接触以形成含有过渡金属的有机硅络合物。 然后将含有过渡金属的有机硅络合物与取代的芳环氮化合物接触,形成第四反应络合物,然后与镁基复合载体接触,镁基复合载体原位通过使金属镁与烷基或芳族 卤化物以形成催化剂组分。
    • 6. 发明申请
    • Highly active alpha-olefin copolymerization catalyst system
    • 高活性α-烯烃共聚催化剂体系
    • US20080058198A1
    • 2008-03-06
    • US11513803
    • 2006-08-31
    • Guangxue XuHonglan LuChih-Jian Chen
    • Guangxue XuHonglan LuChih-Jian Chen
    • C08F4/02
    • C08F10/00C08F210/16C08F4/6565C08F4/651C08F210/14C08F2500/12C08F210/08
    • A high activity magnesium-based supported catalyst component useful in a catalyst system for the compolymerization of ethylene and alpha-olefin and a process for preparing the catalyst component is described. In the process, alkoxysilane ester is contacted with a halogen-substituted silane to form an organic silicon complex. Optionally, the organic silicon complex is contacted with an aminosilane compound to form an organic silicon complex containing nitrogen. The organic silicon complex containing nitrogen or the organic silicon complex is contacted with a transition metal compound to form an organic silicon complex containing transition metal. The organic silicon complex containing transition metal is then contacted with a substituted aromatic ring nitrogen compound to form a fourth reaction complex, which is then contacted with a magnesium-based composite support that has been prepared in situ by reacting metallic magnesium with an alkyl or aromatic halide to form the catalyst component.
    • 描述了用于乙烯和α-烯烃的聚合的催化剂体系中的高活性镁基负载催化剂组分和制备催化剂组分的方法。 在此过程中,烷氧基硅烷酯与卤素取代的硅烷接触以形成有机硅络合物。 任选地,有机硅络合物与氨基硅烷化合物接触以形成含氮的有机硅络合物。 含有氮或有机硅络合物的有机硅配合物与过渡金属化合物接触以形成含有过渡金属的有机硅络合物。 然后将含有过渡金属的有机硅络合物与取代的芳环氮化合物接触,形成第四反应络合物,然后与镁基复合载体接触,镁基复合载体原位通过使金属镁与烷基或芳族 卤化物以形成催化剂组分。
    • 9. 发明授权
    • Alpha-olefins polymerization catalyst
    • α-烯烃聚合催化剂
    • US07582712B1
    • 2009-09-01
    • US12151898
    • 2008-05-09
    • Guangxue XuHonglan Lu
    • Guangxue XuHonglan Lu
    • C08F4/42
    • C08F10/00C08F210/16C08F4/6565C08F210/14C08F2500/12
    • Methods and apparatus to form a catalyst precursor, comprising combining in a reactor magnesium, an alkoxysilane compound, a halogenized silicon compound, a halogenized transition metal compound, a substituted aromatic furan compound having a structural formula, and an alkyl halide or aromatic halide compound to obtain a solid catalyst precursor, wherein the alkoxysilane compound and halogenized silicon compound are combined prior to either being exposed to the halogenized transition metal compound, and wherein the alkyl halide or aromatic halide compound is introduced to the reactor as the final step.
    • 形成催化剂前体的方法和装置,包括在反应器中将镁,烷氧基硅烷化合物,卤化硅化合物,卤化过渡金属化合物,具有结构式的取代的芳族呋喃化合物和烷基卤化物或芳族卤化物化合物 获得固体催化剂前体,其中烷氧基硅烷化合物和卤化硅化合物在暴露于卤化过渡金属化合物之前合并,其中烷基卤化物或芳族卤化物化合物作为最终步骤引入反应器。
    • 10. 发明授权
    • Catalyst component for olefin polymerization
    • 用于烯烃聚合的催化剂组分
    • US06992034B2
    • 2006-01-31
    • US10617238
    • 2003-07-10
    • Guangxue XuHonglan LuChih-Jian Chen
    • Guangxue XuHonglan LuChih-Jian Chen
    • C08F4/609C08F4/602C08F4/603C08F4/606
    • C08F10/00C08F110/02C08F210/16Y02P20/52C08F4/651C08F4/6548C08F4/6565C08F2500/12C08F2500/20C08F210/14
    • A solid catalyst component useful for the (co)-polymerization of olefins is disclosed. The catalyst component is prepared by reacting an activated magnesium halide composite support with a halogenized transition metal compound and a chelating diamide compound in the presence of organo-magnesium as a promoting agent and halogenized silicon or boron compounds as an activator. The catalyst component can be used with an organo-aluminum compound to provide a solid catalyst system that is compatible with slurry and gas phase polymerization processes. Linear low density polyethylene (LLDPE) produced using the catalyst component of the present invention displays a low molecular weight distribution, improved co-monomer incorporation, low content of the low molecular weight component, and excellent morphological properties such as spherical shape and high bulk density.
    • 公开了一种用于烯烃(共)聚合的固体催化剂组分。 催化剂组分通过在有机镁作为促进剂和卤化硅或硼化合物作为活化剂的存在下使活化的卤化镁复合载体与卤化过渡金属化合物和螯合二酰胺化合物反应来制备。 催化剂组分可以与有机铝化合物一起使用以提供与淤浆和气相聚合方法相容的固体催化剂体系。 使用本发明的催化剂组分制备的线性低密度聚乙烯(LLDPE)显示低分子量分布,改进的共聚单体掺入,低分子量组分含量,以及优异的形态特性如球形和高体积密度 。