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公开(公告)号:US06642326B1
公开(公告)日:2003-11-04
申请号:US10137852
申请日:2002-05-03
申请人: Karen E. Meyer , Mark K. Reinking
发明人: Karen E. Meyer , Mark K. Reinking
IPC分类号: C08F444
CPC分类号: C08F10/00 , C08F4/65908 , C08F4/65916 , C08F4/6592 , C08F210/16 , Y10S526/943 , C08F4/65912 , C08F210/08 , C08F2500/12
摘要: A process for the polymerization of olefins is disclosed. A boraaryl catalyst precursor and an activator are used in the presence of a silane modifier. A low level of silane modifier enhances the activity of the catalyst.
摘要翻译: 公开了一种烯烃聚合方法。 硼烷芳基催化剂前体和活化剂在硅烷改性剂存在下使用。 低水平的硅烷改性剂可增强催化剂的活性。
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公开(公告)号:US06310150B1
公开(公告)日:2001-10-30
申请号:US09879443
申请日:2001-06-12
申请人: Karen E. Meyer , Mark K. Reinking
发明人: Karen E. Meyer , Mark K. Reinking
IPC分类号: C08F444
CPC分类号: B01J31/2295 , B01J31/146 , B01J31/165 , B01J35/023 , C08F4/65916 , C08F4/6592 , C08F10/00 , C08F210/16 , C08F4/65908 , C08F210/08 , C08F2500/12 , C08F2500/24
摘要: Supported heterometallocene catalysts wherein the support is a particulate polymeric material are provided. The catalysts have a transition metal complex containing at least one anionic, polymerization stable heteroatomic ligand associated with the transition metal and a boron activator compound deposited on the support. Polymeric supports used for the heterometallocene catalysts of the invention are homopolymers of ethylene and copolymers of ethylene and C3-8 &agr;-olefins.
摘要翻译: 提供负载型异金属茂催化剂,其中载体是颗粒聚合材料。 催化剂具有过渡金属络合物,其含有与过渡金属相关的至少一个阴离子,聚合稳定的杂原子配体和沉积在载体上的硼活化剂化合物。 用于本发明的异金属茂催化剂的聚合物载体是乙烯的均聚物和乙烯和C 3-8α-烯烃的共聚物。
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公开(公告)号:US5022655A
公开(公告)日:1991-06-11
申请号:US394667
申请日:1989-08-16
申请人: Karen E. Meyer
发明人: Karen E. Meyer
IPC分类号: A63F9/10
CPC分类号: A63F9/10
摘要: A jigsaw puzzle includes outer straight edge pieces forming a rectangular puzzle perimeter; a number of interior straight edge pieces suggesting an interior rectangle and increasing the proportion of the number of straight edge pieces to the total number of pieces in the puzzle; and a number of joiner pieces, some of the joiner pieces crossing the bounary of the interior polygon, and others of the joiner pieces at positions remote from the boundary.
摘要翻译: 拼图包括形成矩形拼图周边的外直边片; 一些内部的直边部分表示内部矩形,并将直边片数量的比例增加到拼图中的总数; 以及多个接合件,一些连接件穿过内部多边形的弹性体,以及其他的接合件在远离边界的位置。
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公开(公告)号:US06630544B1
公开(公告)日:2003-10-07
申请号:US10125757
申请日:2002-04-18
IPC分类号: C08F442
CPC分类号: C08F10/06 , C08F110/06 , C08F2/00
摘要: A process for polymerizing propylene is disclosed. The process involves charging propylene and about 90 to 99% of an organoaluminum cocatalyst to a reactor and heating this mixture to at least about 50° C. This is followed by addition of a premix of 1 to 10% of the organoaluminum cocatalyst with a magnesium halide-supported Ziegler-Natta catalyst. The temperature of the reaction mixture is maintained to produce a propylene polymer. The process gives improved catalyst activity.
摘要翻译: 公开了一种聚合丙烯的方法。 该方法包括将丙烯和约90至99%的有机铝助催化剂装入反应器中,并将该混合物加热至至少约50℃。随后加入1至10%的有机铝助催化剂与镁 卤化物载体的齐格勒 - 纳塔催化剂。 保持反应混合物的温度以产生丙烯聚合物。 该方法提供了改进的催化剂活性。
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公开(公告)号:US06211311B1
公开(公告)日:2001-04-03
申请号:US09318008
申请日:1999-05-25
申请人: Shaotian Wang , Bradley P. Etherton , Karen E. Meyer , Michael W. Lynch , Linda N. Winslow , Leonard V. Cribbs , Jia-Chu X. Liu
发明人: Shaotian Wang , Bradley P. Etherton , Karen E. Meyer , Michael W. Lynch , Linda N. Winslow , Leonard V. Cribbs , Jia-Chu X. Liu
IPC分类号: C08F442
CPC分类号: B01J31/165 , B01J31/0231 , B01J31/0272 , B01J31/0274 , B01J31/0275 , B01J31/14 , B01J31/1616 , B01J31/2295 , B01J2531/0225 , B01J2531/0233 , B01J2531/0236 , B01J2531/46 , B01J2531/48 , C08F4/65908 , C08F4/65912 , C08F4/6592 , C08F10/00 , C08F110/02 , C08F210/16 , C08F4/65916 , C08F210/08 , C08F210/14
摘要: A supported olefin polymerization catalyst system and a method of making it are disclosed. The catalyst system comprises: (a) a support chemically treated with an organoaluminum, organosilicon, organomagnesium, or organoboron compound; (b) a single-site catalyst that contains a polymerization-stable, heteroatomic ligand; and (c) an activator. Chemical treatment is a key to making supported heterometallocenes that have high activity and long shelf-lives, and can effectively incorporate comonomers.
摘要翻译: 公开了一种负载型烯烃聚合催化剂体系及其制备方法。 催化剂体系包括:(a)用有机铝,有机硅,有机镁或有机硼化合物化学处理的载体; (b)含有聚合稳定的杂原子配体的单中心催化剂; 和(c)活化剂。 化学处理是制备具有高活性和长保质期的负载型异金属茂并能有效掺入共聚单体的关键。
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公开(公告)号:US06281155B1
公开(公告)日:2001-08-28
申请号:US09443711
申请日:1999-11-19
申请人: Karen E. Meyer , Mark K. Reinking
发明人: Karen E. Meyer , Mark K. Reinking
IPC分类号: B01J3100
CPC分类号: B01J31/2295 , B01J31/146 , B01J31/165 , B01J35/023 , C08F4/65916 , C08F4/6592 , C08F10/00 , C08F210/16 , C08F4/65908 , C08F210/08 , C08F2500/12 , C08F2500/24
摘要: Supported heterometallocene catalysts wherein the support is a particulate polymeric material are provided. The catalysts have a transition metal complex containing at least one anionic, polymerization stable heteroatomic ligand associated with the transition metal and a boron activator compound deposited on the support. Polymeric supports used for the heterometallocene catalysts of the invention are homopolymers of ethylene and copolymers of ethylene and C3-8 &agr;-olefins.
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