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公开(公告)号：USRE33683E
公开(公告)日：1991-09-03
申请号：US357249
申请日：1989-05-26
IPC分类号： C08F210/02
CPC分类号： C08F210/02
摘要： A catalyst composition for polymerizing alpha-olefins is prepared by reacting a transition metal compound, e.g., titanium, with trimethylaluminum catalyst activator. In a preferred embodiment, the catalyst is supported on a porous refractory support and is prepared by additionally reacting a magnesium compound or an organomagnesium composition with the support.Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention. The polymer products have higher bulk density and produce films of greater strength than polymers prepared with similar catalysts utilizing different alkyl-aluminum activators, e.g., triethylaluminum and triisobutylaluminum.
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公开(公告)号：US4888318A
公开(公告)日：1989-12-19
申请号：US138235
申请日：1987-12-24
CPC分类号： C08F10/00
摘要： A catalyst composition for polymerizing alpha-olefins is prepared by reacting a transition metal compound, e.g., titanium, with trimethylaluminum catalyst activator. In a preferred embodiment, the catalyst is supported on a porous refractory support and is prepared by additionally reacting a magnesium compound or an organomagnesium composition with the support.Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention. The polymer products have higher bulk density and produce films of greater strength than polymers prepared with similar catalysts utilizing different alkyl-aluminum activators, e.g., triethylaluminum and tri-isobutylaluminum.
摘要翻译： 用于聚合α-烯烃的催化剂组合物通过使过渡金属化合物例如钛与三甲基铝催化剂活化剂反应来制备。 在优选的实施方案中，将催化剂负载在多孔耐火载体上，并且通过使镁化合物或有机镁组合物与载体另外反应来制备。 还公开了在本发明催化剂存在下聚合α-烯烃的方法。 聚合物产品具有较高的堆积密度并且产生比使用不同烷基铝活化剂（例如三乙基铝和三异丁基铝）的类似催化剂制备的聚合物更强的膜。
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公开(公告)号：US4732882A
公开(公告)日：1988-03-22
申请号：US822359
申请日：1986-01-24
IPC分类号： C08F4/60 , C08F4/62 , C08F4/638 , C08F4/639 , C08F4/64 , C08F8/00 , C08F10/00 , C08F10/02 , C08F4/68
CPC分类号： C08F10/00
摘要： A catalyst composition for polymerizing alpha-olefins is prepared by reacting a transition metal compound, e.g., titanium, with trimethylaluminum catalyst activator. In a preferred embodiment, the catalyst is supported on a porous refractory support and is prepared by additionally reacting a magnesium compound or an organomagnesium composition with the support.Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention. The polymer products have higher bulk density and produce films of greater strength than polymers prepared with similar catalysts utilizing different alkyl-aluminum activators, e.g., triethylaluminum and tri-isobutylaluminum.
摘要翻译： 用于聚合α-烯烃的催化剂组合物通过使过渡金属化合物例如钛与三甲基铝催化剂活化剂反应来制备。 在优选的实施方案中，将催化剂负载在多孔耐火载体上，并且通过使镁化合物或有机镁组合物与载体另外反应来制备。 还公开了在本发明催化剂存在下聚合α-烯烃的方法。 聚合物产品具有较高的堆积密度并且产生比使用不同烷基铝活化剂（例如三乙基铝和三异丁基铝）的类似催化剂制备的聚合物更强的膜。
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4.发明授权Process for polymerizing alpha-olefins with trimethylaluminum-activated catalyst 失效用三甲基铝活化催化剂聚合α-烯烃的方法
公开(公告)号：US5055533A
公开(公告)日：1991-10-08
申请号：US384045
申请日：1989-07-24
IPC分类号： C08F10/00
CPC分类号： C08F10/00 , Y10S526/901
摘要： A catalyst composition for polymerizing alpha-olefins is prepared by reacting a transition metal compound, e.g., titanium, with trimethylaluminum catalyst activator. In a preferred embodiment, the catalyst is supported on a porous refractory support and is prepared by additionally reacting a magnesium compound or an organomagnesium composition with the support.Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention. The polymer products have higher bulk density and produce films of greater strength than polymers prepared with similar catalysts utilizing different alkyl-aluminum activators, e.g., triethylaluminum and tri-isobytylaluminum.
摘要翻译： 用于聚合α-烯烃的催化剂组合物通过使过渡金属化合物例如钛与三甲基铝催化剂活化剂反应来制备。 在优选的实施方案中，将催化剂负载在多孔耐火载体上，并且通过使镁化合物或有机镁组合物与载体另外反应来制备。 还公开了在本发明催化剂存在下聚合α-烯烃的方法。 聚合物产品具有较高的堆积密度并且产生比使用不同的烷基铝活化剂（例如三乙基铝和三异丁基铝）的类似催化剂制备的聚合物更强的膜。
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