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1.发明授权
公开(公告)号：US4546092A
公开(公告)日：1985-10-08
申请号：US525825
申请日：1983-08-23
CPC分类号： C08F10/00
摘要： A process is disclosed for preparing a titanium catalyst component useful for homopolymerizing 1-alkenes and for copolymerizing 1-alkenes with each other and/or with ethylene, consisting essentially in grinding a titanium halide compound/electron-donor complex with a magnesium aluminum halide obtained by precipitation from an organic solvent.In the process the ground product is first washed with a washing liquid containing a solvent for the aluminum halide/electron-donor complex which forms during the grinding process and by preference at least one alcohol, the molar ratio between alcohol and titanium in the ground product ranging between 50:1 and 1:20, and then the washed product is exposed to a liquid titanium halide compound.With this procedure, it is possible to obtain a titanium component which imparts to the polymerization catalyst an excellent stereospecificity along with a very high activity, and with which it is possible to obtain polymers, e.g. polypropylene, with a very low halogen content, a very low titanium content, and an excellent powder morphology and bulk density.
摘要翻译： 公开了一种用于制备可用于均聚1-烯烃并用于使1-烯烃彼此和/或与乙烯共聚的钛催化剂组分的方法，其基本上在与卤化镁卤化铝的卤化铝化合物/电子给体络合物的研磨中得到 通过有机溶剂的沉淀。 在该方法中，研磨产物首先用包含在研磨过程中形成的卤化铝/电子给体络合物的溶剂的清洗液和优选至少一种醇洗涤，研磨产物中醇与钛的摩尔比 范围在50:1和1:20之间，然后将洗涤的产物暴露于液体卤化钛化合物。 通过该方法，可以获得赋予聚合催化剂的极好的立体定向性以及非常高的活性的钛成分，并且可以通过其获得聚合物。 聚丙烯，具有非常低的卤素含量，非常低的钛含量，以及优异的粉末形态和体积密度。
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公开(公告)号：US5364916A
公开(公告)日：1994-11-15
申请号：US942319
申请日：1992-09-10
CPC分类号： C08F10/00
摘要： The present invention relates to a catalyst and a process for the preparation of an olefin polymer, which catalyst comprises a transition metal component and an organometal component. The transition metal component comprises a transition metal atom onto which an imidoaryl ligand is bound.More specifically the transition metal is vanadium or titanium.
摘要翻译： 本发明涉及催化剂和制备烯烃聚合物的方法，该催化剂包含过渡金属组分和有机金属组分。 过渡金属组分包括其上结合亚氨基芳基配体的过渡金属原子。 更具体地，过渡金属是钒或钛。
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3.发明授权Process for the preparation of an elastomeric polymer from ethylene, alpha-olefine and optionally diene 失效从乙烯，α-烯烃和任选的二烯制备弹性体聚合物的方法
公开(公告)号：US5902867A
公开(公告)日：1999-05-11
申请号：US732278
申请日：1996-12-26
IPC分类号： C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F210/16 , C08F210/18
CPC分类号： C08F210/18 , C08F10/00 , C08F210/16 , C08F4/65912 , C08F4/65925
摘要： The invention relates to a process for the preparation of a polymer from ethylene, an .alpha.-olefine and optionally a diene, according to which these monomers are polymerized under the influence of a metallocene catalyst, the polymerization taking place in the presence of a catalyst comprising a specific 2-indenyl metallocene, resulting in a bimodal, elastomeric polymer with a molecular weight distribution of more than 3.5, under such reaction conditions that the amount of water in the polymerization medium is smaller than 0.5 ppm.The invention also relates to polymers with a specific branching index.
摘要翻译： PCT No.PCT / NL95 / 00140 Sec。 371日期1996年12月26日第 102（e）日期1996年12月26日PCT提交1995年4月18日PCT公布。 WO95 / 30698 PCT出版物 日期：1995年11月16日本发明涉及从乙烯，α-烯烃和任选的二烯制备聚合物的方法，根据该方法，这些单体在茂金属催化剂的影响下聚合，聚合发生在 存在包含特定2-茚基茂金属的催化剂，得到分子量分布大于3.5的双峰弹性聚合物，在聚合介质中的水的量小于0.5ppm的反应条件下。 本发明还涉及具有特定支化指数的聚合物。
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