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Ligand metallocene, the metallocene compound and a metallocene catalyst, their synthesis, and their use for olefin polymerization
Ligand metallocene, the metallocene compound and a metallocene catalyst, their synthesis, and their use for olefin polymerization
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机译：配体金属茂，金属茂化合物和金属茂催化剂，其合成及其在烯烃聚合中的用途
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摘要
The present invention eliminates the technical field conditions disadvantage, and are more soluble, and the compound having the same or improved catalytic property profile to be available, and / or alternative crosslinking concept, appropriate ligand substitution pattern, and surprising using the synergistic effect of the ligand substituent, produce the desired isomer, and sake at the same time a large number of reaction steps, and results in a more obvious economic advantages, available direct synthesis the thing. Also, substituted and using bridged metallocenes, to provide a supported metallocene catalyst, and using the catalyst system of the present invention, in industrially suitable polymerization conditions, environmentally friendly, and economical polyolefin preparation It is provided. A catalyst system, wherein (wherein including a metallocene compound having a R 9 L 1 L 2 M 1 R 1 R 2, R 9 is a bridge between the ligands L 1 and L 2, and M 1 is, IVB metals of the periodic table, for example titanium, zirconium and hafnium, and R 1 and R 2 can also be either a hydrogen or an aliphatic group or an aromatic group. crosslinked R 9 is may also include silicon, germanium or tin.). Metallocene compound of the present invention at the time of synthesis is 5: 1 have a larger racemic isomer to meso isomer ratio, thereby eliminating the need to separate subsequently meso isomer. .BACKGROUND
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机译：本发明消除了技术领域条件的缺点，并且更易溶解，并且具有相同或改善的催化性能特征的化合物可供使用，和/或替代的交联概念，合适的配体取代方式，以及令人惊讶地使用了其的协同作用。配体取代基，产生所需的异构体，并同时进行大量的反应步骤，并产生更明显的经济优势，可直接合成的东西。另外，提供了在工业上合适的聚合条件下，环境友好且经济的聚烯烃制备中，取代并使用桥连的茂金属以提供负载的茂金属催化剂，并使用本发明的催化剂体系。催化剂体系，其中，其中（其中包括具有 R 9 L 1 L 2 M 1 R 1 R 2，R 9的茂金属化合物是 > L 1 和 L 2 和M 1 是元素周期表中的IVB金属，例如钛，锆和ha，R 1 和R 2 也可以是氢或脂族基团或芳族基团;交联的R 9 还可以包括硅，锗或锡。 ）。本发明的茂金属化合物在合成时为5∶1，具有较大的外消旋异构体与内消旋异构体的比例，从而消除了随后分离内消旋异构体的需要。 。背景
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