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1. 发明授权

US06340728B1 Method for olefin polymerization with recycling of co-catalyst 有权
标题翻译：烯烃聚合方法与辅助催化剂的再循环
公开(公告)号：US06340728B1
公开(公告)日：2002-01-22
申请号：US09494711
申请日：2000-01-31
申请人： Jae-Seung Oh , Bun-Yeoul Lee , Yoon-Hyeun Oum , Tai-Ho Park
发明人： Jae-Seung Oh , Bun-Yeoul Lee , Yoon-Hyeun Oum , Tai-Ho Park
IPC分类号： C08F214
CPC分类号： C08F10/00 , C08F4/65925 , C08F6/02 , C08F110/06 , Y02P20/584 , C08L23/00 , C08F4/65912 , C08F4/65916 , C08F2500/18
摘要： Disclosed are catalyst preparation olefin polymerization processes with the recycling of a co-catalyst. According to the olefin polymerization process activated single-site catalysts are prepared by contacting supported single-site pre-catalyst with an organic solvent containing co-catalyst. The activated single-site catalysts are separated from co-catalysts dissolved in an organic solvent and the olefin polymerization is conducted using the separated single-site catalysts with one or more olefinic monomers. The separated co-catalysts is reused by recycling the organic solvent containing the separated co-catalysts and contacting them with the supported single-site pre-catalysts. The olefin polymerization process of the present invention enables recycling expensive co-catalyst for subsequent olefin polymerization and accordingly the total amount of co-catalyst required can be significantly reduced.
摘要翻译：公开了催化剂制备烯烃聚合方法与助催化剂的再循环。根据烯烃聚合方法，活化的单中心催化剂是通过将负载的单部位预催化剂与含有助催化剂的有机溶剂接触来制备的。将活化的单中心催化剂与溶于有机溶剂中的助催化剂分离，并使用分离的单中心催化剂与一种或多种烯属单体进行烯烃聚合。分离的助催化剂通过再循环含有分离的助催化剂的有机溶剂并将其与负载的单位点预催化剂接触来再利用。本发明的烯烃聚合方法使得可以再循环昂贵的助催化剂用于随后的烯烃聚合，因此可显着降低所需的助催化剂的总量。

2. 发明授权

US06214953B1 Process for the preparation of olefinic polymers using supported metallocene catalyst 有权
标题翻译：使用负载金属茂催化剂制备烯烃聚合物的方法
公开(公告)号：US06214953B1
公开(公告)日：2001-04-10
申请号：US09230935
申请日：1999-02-03
申请人： Jae-Seung Oh , Tai-Ho Park , Bun-Yeoul Lee
发明人： Jae-Seung Oh , Tai-Ho Park , Bun-Yeoul Lee
IPC分类号： C08F442
CPC分类号： C08F10/00 , C08F4/65912 , C08F4/65916 , C08F4/65922 , C08F110/02 , C08F210/16 , Y10S526/904 , Y10S526/943 , C08F4/65925 , C08F2500/18 , C08F210/08 , C08F2500/03
摘要： An olefinic polymer having improved molecular weight distribution and bulk density is prepared by polymerizing an olefinic monomer and, optionally, a comonomer in the presence of a supported catalyst comprising a modified metallocene and an alkylaluminoxane supported on a carrier in an aliphatic hydrocarbon solvent, the modified metallocene being derived from a metallocene of formula(I) by introducing at least one C5-20 alkyl substituent into a &pgr;-ligand, C1-4 alkylene bridge or silicon bridge thereof and the alkylaluminoxane having a repeating unit of formula(II): wherein: M is Ti, Zr or Hf; X is a halogen, or a C1-3 alkyl group; L1 and L2 are each a &pgr;-ligand selected from the group consisting of cyclopentadienyl, indenyl, fluorenyl and derivatives thereof, and are optionally linked together by a C1-4 alkylene bridge or by a silicon bridge; m is an integer of 2 or more; and R1 is a C1-20 alkyl group.
摘要翻译：具有改进的分子量分布和体积密度的烯烃聚合物通过在负载型催化剂的存在下聚合烯烃单体和任选的共聚单体来制备，所述催化剂包含改性金属茂和负载在脂族烃溶剂中的载体上的烷基铝氧烷，通过将至少一个C 5-20烷基取代基引入π-配体，C 1-4亚烷基桥或其硅桥和具有式（II）的重复单元的烷基铝氧烷，衍生自式（I）的金属茂的茂金属：其中 M是Ti，Zr或Hf; X是卤素或C 1-3烷基; L1和L2各自是选自环戊二烯基，茚基，芴基及其衍生物的π-配位体，并且任选连接一起通过C 1-4亚烷基桥或硅桥; m为2以上的整数; 并且R 1是C 1-20烷基。

3. 发明授权

US06255417B1 Process for the preparation of olefinic polymers using metallocene catalyst 失效
标题翻译：使用茂金属催化剂制备烯烃聚合物的方法
公开(公告)号：US06255417B1
公开(公告)日：2001-07-03
申请号：US09077278
申请日：1998-05-27
申请人： Jae-Seung Oh , Tai-Ho Park , Bun-Yeoul Lee , Sang-Won Jeong
发明人： Jae-Seung Oh , Tai-Ho Park , Bun-Yeoul Lee , Sang-Won Jeong
IPC分类号： C08F206
CPC分类号： C08F10/00 , C08F4/65912 , C08F4/65922 , C08F110/02 , Y10S526/943 , C08F2/06
摘要： An improved process of preparing a olefinic polymer of the type in which an olefinic monomer is polymerized alone or with a comonomer in a hydrocarbon solvent using a metallocene catalyst of formula (I) in the presence of a cocatalyst; wherein the improvement comprises: preparing the olefinic polymer in an aliphatic hydrocarbon solvent using a modified metallocene catalyst which is obtained by introducing at least one C5-20 alkyl substituent into the &pgr;-ligand, the alkylene bridge or silicon bridge of the metallocene catalyst of formula (I): L1L2MX2 (I) wherein, M is Ti, Zr or Hf; X is a halogen, or a C1-3 alkyl group; and L1 and L2 are each a &pgr;-ligand selected from the group consisting of cyclopentadienyl, indenyl, fluorenyl and derivatives thereof, and are optionally linked together by a C1-4 alkylene bridge optionally substituted with a C1-3 hydrocarbyl group or by a silicon bridge optionally substituted with a C1-3 hydrocarbyl group.
摘要翻译：在助催化剂存在下，使用式（I）的茂金属催化剂制备其中烯烃单体单独或与烃溶剂中的共聚单体聚合的烯烃聚合物的改进方法; 其中所述改进包括：使用改性金属茂催化剂在脂族烃溶剂中制备烯属聚合物，所述改性金属茂催化剂是通过将至少一个C 5-20烷基取代基引入式配体中的金属茂催化剂的亚胺桥或硅桥，（I）：其中，M为Ti，Zr或Hf; X为卤素或C 1-3烷基; 和L 1和L 2各自为选自环戊二烯基，茚基，芴基及其衍生物的π-配位体，并且任选地被任选被C 1-3烃基取代的C 1-4亚烷基桥基或通过硅桥任选地被C 1-3烃基取代。

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