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51. 发明申请

US20090318646A1 Functionalized High Vinyl Terminated Propylene Based Oligomers 有权
标题翻译：官能化高乙烯基终止丙烯基低聚物
公开(公告)号：US20090318646A1
公开(公告)日：2009-12-24
申请号：US12487739
申请日：2009-06-19
申请人： Patrick Brant , Donna J. Crowther
发明人： Patrick Brant , Donna J. Crowther
IPC分类号： C08F4/72 , C08F210/00
CPC分类号： C08F210/06 , C08F210/16 , C08F2500/20 , C08F2500/02
摘要： This invention relates to a functionalized co-oligomer having an Mn of 300 to 30,000 g/mol comprising 10 to 90 mol % propylene and 10 to 90 mol % of ethylene, wherein the oligomer has at least X % allyl chain ends, where: 1) X=(−0.94(mole % ethylene incorporated)+100), when 10 to 60 mole % ethylene is present in the co-oligomer, and 2) X=45, when greater than 60 and less than 70 mole % ethylene is present in the co-oligomer, and 3) X=(1.83*(mole % ethylene incorporated)−83), when 70 to 90 mole % ethylene is present in the co-oligomer. This invention also relates to a functionalized homo-oligomer, comprising propylene, wherein the oligomer has: at least 93% allyl chain ends, an Mn of about 500 to about 20,000 g/mol, an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.2:1.0, and less than 100 ppm aluminum. This invention also relates to a process of making functionalized homo-or co-oligomer, comprising propylene, wherein the productivity is greater than 4500 g/mmol Hf (or Zr)/hour.
摘要翻译：本发明涉及Mn为300〜30,000g / mol，含有10〜90mol％丙烯和10〜90mol％乙烯的官能化共聚物，其中低聚物具有至少X％的烯丙基链端，其中：1 ）X =（ - 0.94（加入摩尔％乙烯）+100），当共聚低聚物中存在10至60摩尔％的乙烯时，和2）X = 45，当大于60且小于70摩尔％的乙烯为存在于共聚低聚物中，和3）X =（1.83 *（摩尔％乙烯掺入）-83），当共聚低聚物中存在70至90摩尔％的乙烯时。本发明还涉及包含丙烯的官能化均聚物，其中所述低聚物具有：至少93％的烯丙基链端，约500至约20,000g / mol的Mn，异丁基链至烯丙基乙烯基的比例为0.8 ：1〜1.2：1.0，小于100ppm的铝。本发明还涉及制备包含丙烯的官能化均聚或共聚低聚物的方法，其中生产率大于4500g / mmol Hf（或Zr）/小时。

52. 发明申请

US20090318640A1 Polymacromonomer And Process For Production Thereof 失效
标题翻译：聚异构体及其制备方法
公开(公告)号：US20090318640A1
公开(公告)日：2009-12-24
申请号：US12488066
申请日：2009-06-19
申请人： Patrick Brant , Andrew G. Narvaez, JR. , Donna J. Crowther
发明人： Patrick Brant , Andrew G. Narvaez, JR. , Donna J. Crowther
IPC分类号： C08F10/14 , C08F4/76 , C08F4/12 , C08F2/00
CPC分类号： C08F210/16 , C08F4/65908 , C08F4/65912 , C08F4/65927 , C08F10/00 , C08F255/02 , C08F4/7042 , C08F4/64193 , C08F210/06 , C08F2500/03 , C08F2500/02
摘要： This invention relates to a polymacromonomer comprising at least one macromonomer and from 0 to 20 wt % of a C2 to C12 comonomer, wherein the macromonomer has vinyl termination of at least 70%, and wherein the polymacromonomer has: a) a g value of less than 0.6, b) an Mw of greater than 30,000 g/mol, c) an Mn of greater than 20,000 g/mol, d) a branching index (g′)vis of less than 0.5, e) less than 25% vinyl terminations, f) at least 70 wt % macromonomer, based upon the weight of the polymacromonomer, g) from 0 to 20 wt % aromatic containing monomer, based upon the weight of the polymacromonomer and h) optionally, a melting point of 50° C. or more. This invention also relates to processes to make such polymacromonomers.
摘要翻译：本发明涉及包含至少一种大分子单体和0-20重量％的C 2 -C 12共聚单体的聚异氰酸酯，其中所述大分子单体具有至少70％的乙烯基封端，并且其中所述聚异淀粉体具有：a）ag值小于 0.6，b）大于30,000g / mol的Mw，c）大于20,000g / mol的Mn，d）支链指数（g'）vis小于0.5，e）小于25％的乙烯基封端， f）至少70重量％的大分子单体，基于聚共聚单体的重量，g）0至20重量％的含芳族单体，基于聚共聚单体的重量，以及h）任选地，熔点为50℃，或更多。本发明还涉及制备这种聚异构体的方法。

53. 发明授权

US06300433B1 Olefin copolymerization process with bridged hafnocenes 有权
标题翻译：烯烃共聚方法与桥连氢键
公开(公告)号：US06300433B1
公开(公告)日：2001-10-09
申请号：US09422533
申请日：1999-10-21
申请人： George Rodriguez , Donna J. Crowther
发明人： George Rodriguez , Donna J. Crowther
IPC分类号： C08F452
CPC分类号： C08F10/00 , C07F17/00 , C08F4/65908 , C08F10/02 , C08F110/02 , C08F210/16 , C08F4/65927 , C08F210/14 , C08F2/06 , C08F2500/03 , C08F2500/04 , C08F2500/12 , C08F2500/08
摘要： The invention is directed to olefin polymerization processes using bridged hafnocene catalyst complexes that are surprisingly stable under high temperature olefin polymerization processes such that olefin copolymers can be prepared with high molecular weights and catalyst activities. More specifically, the invention is a polymerization process for ethylene copolymers having a melt index of about 0.850 to about 0.930 comprising contacting, under homogeneous polymerization conditions at a reaction temperature at or above 60° C. to 250° C., ethylene and one or more comonomers capable of insertion polymerization with a bridged hafnocene catalyst complex derived from A) a biscyclopentadienyl hafnium organometallic compound having i) at least one unsubstituted cyclopentadienyl ligand or aromatic fused-ring substituted cyclopentadienyl ligand, ii) one aromatic fused-ring substituted cyclopentadienyl ligand, iii) and a covalent bridge connecting the two cyclopentadienyl ligands, said bridge comprising a single carbon or silicon atom with two aryl groups, each substituted with a C1-C20 hydrocarbyl or hydrocarbylsilyl group at least one of which is a linear C3 or greater substitutent; and B) an activating cocatalyst.
摘要翻译：本发明涉及使用在高温烯烃聚合方法中出人意料地稳定的桥联茂茂催化剂络合物的烯烃聚合方法，使得可以以高分子量和催化剂活性制备烯烃共聚物。更具体地，本发明是一种熔体指数为约0.850至约0.930的乙烯共聚物的聚合方法，其包括在均相聚合条件下在等于或高于60℃至250℃的反应温度下接触乙烯和一种或能够与来自A）双环戊二烯基铪有机金属化合物的桥连的茂金属催化剂络合物进行插入聚合的更多共聚单体，其具有i）至少一个未取代的环戊二烯基配体或芳族稠环取代的环戊二烯基配体，ii）一个芳族稠环取代的环戊二烯基配体， iii）和连接两个环戊二烯基配体的共价桥，所述桥包含单个碳或硅原子与两个芳基，每个被C1-C20烃基或烃基甲硅烷基取代，其中至少一个是直链C3或更大的取代基; 和B）活化助催化剂。

54. 发明申请

US20100298510A1 Catalyst System and Process for Olefin Polymerization 有权
标题翻译：催化剂体系和烯烃聚合方法
公开(公告)号：US20100298510A1
公开(公告)日：2010-11-25
申请号：US12849351
申请日：2010-08-03
申请人： Donna J. Crowther , Peijun Jiang , George Rodriguez
发明人： Donna J. Crowther , Peijun Jiang , George Rodriguez
IPC分类号： C08F4/58 , C08F4/42
CPC分类号： C08F210/06 , B01J31/0239 , B01J31/146 , B01J31/1616 , B01J31/2295 , B01J2231/122 , B01J2531/48 , B01J2531/49 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F10/06 , C08F110/06 , C08F210/16 , Y10S526/943 , C08F4/65908 , C08F2500/08 , C08F2500/20 , C08F2500/03 , C08F2500/17
摘要： The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+ [Y]−, wherein [Y]− is a non-coordinating anion (NCA), A is nitrogen or phosphorus, R1 and R2 are hydrocarbyl groups or heteroatom-containing hydrocarbyl groups and together form a first, 3- to 10-membered non-aromatic ring with A, wherein any number of adjacent ring members may optionally be members of at least one second, aromatic or aliphatic ring or aliphatic and/or aromatic ring system of two or more rings, wherein said at least one second ring or ring system is fused to said first ring, and wherein any atom of the first and/or at least one second ring or ring system is a carbon atom or a heteroatom and may be substituted independently by one or more substituents selected from the group consisting of a hydrogen atom, halogen atom, C1 to C10 alkyl, C5 to C15 aryl, C6 to C25 arylalkyl, and C6 to C25 alkylaryl, and R3 is a hydrogen atom or C1 to C10 alkyl, or R3 is a C1 to C10 alkylene group that connects to said first ring and/or to said at least one second ring or ring system. The present application also relates to a process for the polymerization of olefins, preferably propylene, using this and other catalyst systems, as well as to polymers made by said process.
摘要翻译：本申请涉及用于烯烃聚合的新型催化剂体系，其包含具有下式的新的离子活化剂：[R 1 R 2 R 3 AH] + [Y] - ，其中[Y] - 是非配位阴离子（NCA），A是氮或磷，R 1和R 2是烃基或含杂原子的烃基，并且与A一起形成第一个3至10元非芳族环，其中任何数量的相邻环成员可以任选地是至少一个第二个是两个或更多个环的芳族或脂族环或脂族和/或芳族环系，其中所述至少一个第二环或环系与所述第一环稠合，并且其中第一和/或至少一个第二环或环系是碳原子或杂原子，并且可以被一个或多个选自氢原子，卤素原子，C 1至C 10烷基，C 5至C 15芳基，C 6至C 25芳烷基，和C 6至C 25烷基芳基，R 3是氢原子或C1至C10烷基，或R3是连接到所述第一环和/或所述至少一个第二环或环系统的C1至C10亚烷基。本申请还涉及使用这种和其它催化剂体系以及通过所述方法制备的聚合物来聚合烯烃，优选丙烯的方法。

55. 发明申请

US20100029873A1 Catalyst System And Process For Olefin Polymerization 有权
标题翻译：催化剂体系和烯烃聚合方法
公开(公告)号：US20100029873A1
公开(公告)日：2010-02-04
申请号：US12184713
申请日：2008-08-01
申请人： Donna J. Crowther , Peijun Jiang , George Rodriguez
发明人： Donna J. Crowther , Peijun Jiang , George Rodriguez
IPC分类号： C08F4/00 , B01J31/02 , B01J31/18 , C08F4/32
CPC分类号： C08F210/06 , B01J31/0239 , B01J31/146 , B01J31/1616 , B01J31/2295 , B01J2231/122 , B01J2531/48 , B01J2531/49 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F10/06 , C08F110/06 , C08F210/16 , Y10S526/943 , C08F4/65908 , C08F2500/08 , C08F2500/20 , C08F2500/03 , C08F2500/17
摘要： The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+ [Y]−, wherein [Y]− is a non-coordinating anion (NCA), A is nitrogen or phosphorus, R1 and R2 are hydrocarbyl groups or heteroatom-containing hydrocarbyl groups and together form a first, 3- to 10-membered non-aromatic ring with A, wherein any number of adjacent ring members may optionally be members of at least one second, aromatic or aliphatic ring or aliphatic and/or aromatic ring system of two or more rings, wherein said at least one second ring or ring system is fused to said first ring, and wherein any atom of the first and/or at least one second ring or ring system is a carbon atom or a heteroatom and may be substituted independently by one or more substituents selected from the group consisting of a hydrogen atom, halogen atom, C1 to C10 alkyl, C5 to C15 aryl, C6 to C25 arylalkyl, and C6 to C25 alkylaryl, and R3 is a hydrogen atom or C1 to C10 alkyl, or R3 is a C1 to C10 alkylene group that connects to said first ring and/or to said at least one second ring or ring system. The present application also relates to a process for the polymerization of olefins, preferably propylene, using this and other catalyst systems, as well as to polymers made by said process.
摘要翻译：本申请涉及用于烯烃聚合的新型催化剂体系，其包含具有下式的新的离子活化剂：[R 1 R 2 R 3 AH] + [Y] - ，其中[Y] - 是非配位阴离子（NCA），A是氮或磷，R 1和R 2是烃基或含杂原子的烃基，并且与A一起形成第一个3至10元非芳族环，其中任何数量的相邻环成员可以任选地是至少一个第二个是两个或更多个环的芳族或脂族环或脂族和/或芳族环系，其中所述至少一个第二环或环系与所述第一环稠合，并且其中第一和/或至少一个第二环或环系是碳原子或杂原子，并且可以被一个或多个选自氢原子，卤素原子，C 1至C 10烷基，C 5至C 15芳基，C 6至C 25芳烷基，和C 6至C 25烷基芳基，R 3是水解 n原子或C1至C10烷基，或R3是连接到所述第一环和/或所述至少一个第二环或环系的C1至C10亚烷基。本申请还涉及使用这种和其它催化剂体系以及通过所述方法制备的聚合物来聚合烯烃，优选丙烯的方法。

56. 发明授权

US07985816B2 Catalyst system and process for olefin polymerization 有权
标题翻译：催化剂体系和烯烃聚合方法
公开(公告)号：US07985816B2
公开(公告)日：2011-07-26
申请号：US12849351
申请日：2010-08-03
申请人： Donna J. Crowther , Peijun Jiang , George Rodriguez
发明人： Donna J. Crowther , Peijun Jiang , George Rodriguez
IPC分类号： C08F4/6592 , B01J31/22
CPC分类号： C08F210/06 , B01J31/0239 , B01J31/146 , B01J31/1616 , B01J31/2295 , B01J2231/122 , B01J2531/48 , B01J2531/49 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F10/06 , C08F110/06 , C08F210/16 , Y10S526/943 , C08F4/65908 , C08F2500/08 , C08F2500/20 , C08F2500/03 , C08F2500/17
摘要： The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+ [Y]−, wherein [Y]− is a non-coordinating anion (NCA), A is nitrogen or phosphorus, R1 and R2 are hydrocarbyl groups or heteroatom-containing hydrocarbyl groups and together form a first, 3- to 10-membered non-aromatic ring with A, wherein any number of adjacent ring members may optionally be members of at least one second, aromatic or aliphatic ring or aliphatic and/or aromatic ring system of two or more rings, wherein said at least one second ring or ring system is fused to said first ring, and wherein any atom of the first and/or at least one second ring or ring system is a carbon atom or a heteroatom and may be substituted independently by one or more substituents selected from the group consisting of a hydrogen atom, halogen atom, C1 to C10 alkyl, C5 to C15 aryl, C6 to C25 arylalkyl, and C6 to C25 alkylaryl, and R3 is a hydrogen atom or C1 to C10 alkyl, or R3 is a C1 to C10 alkylene group that connects to said first ring and/or to said at least one second ring or ring system. The present application also relates to a process for the polymerization of olefins, preferably propylene, using this and other catalyst systems, as well as to polymers made by said process.
摘要翻译：本申请涉及用于烯烃聚合的新型催化剂体系，其包含具有下式的新的离子活化剂：[R 1 R 2 R 3 AH] + [Y] - ，其中[Y] - 是非配位阴离子（NCA），A是氮或磷，R 1和R 2是烃基或含杂原子的烃基，并且与A一起形成第一个3至10元非芳族环，其中任何数量的相邻环成员可以任选地是至少一个第二个是两个或更多个环的芳族或脂族环或脂族和/或芳族环系，其中所述至少一个第二环或环系与所述第一环稠合，并且其中第一和/或至少一个第二环或环系是碳原子或杂原子，并且可以被一个或多个选自氢原子，卤素原子，C 1至C 10烷基，C 5至C 15芳基，C 6至C 25芳烷基，和C 6至C 25烷基芳基，R 3是氢原子或C1至C10烷基，或R3是连接到所述第一环和/或所述至少一个第二环或环系统的C1至C10亚烷基。本申请还涉及使用这种和其它催化剂体系以及通过所述方法制备的聚合物来聚合烯烃，优选丙烯的方法。

57. 发明授权

US07799879B2 Catalyst system and process for olefin polymerization 有权
标题翻译：催化剂体系和烯烃聚合方法
公开(公告)号：US07799879B2
公开(公告)日：2010-09-21
申请号：US12184713
申请日：2008-08-01
申请人： Donna J. Crowther , Peijun Jiang , George Rodriguez
发明人： Donna J. Crowther , Peijun Jiang , George Rodriguez
IPC分类号： C08F4/603 , C08F4/643 , C08F4/6592 , B01J31/12 , B01J31/22
CPC分类号： C08F210/06 , B01J31/0239 , B01J31/146 , B01J31/1616 , B01J31/2295 , B01J2231/122 , B01J2531/48 , B01J2531/49 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F10/06 , C08F110/06 , C08F210/16 , Y10S526/943 , C08F4/65908 , C08F2500/08 , C08F2500/20 , C08F2500/03 , C08F2500/17
摘要： The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+[Y]−, wherein [Y]− is a non-coordinating anion (NCA), A is nitrogen or phosphorus, R1 and R2 are hydrocarbyl groups or heteroatom-containing hydrocarbyl groups and together form a first, 3- to 10-membered non-aromatic ring with A, wherein any number of adjacent ring members may optionally be members of at least one second, aromatic or aliphatic ring or aliphatic and/or aromatic ring system of two or more rings, wherein said at least one second ring or ring system is fused to said first ring, and wherein any atom of the first and/or at least one second ring or ring system is a carbon atom or a heteroatom and may be substituted independently by one or more substituents selected from the group consisting of a hydrogen atom, halogen atom, C1 to C10 alkyl, C5 to C15 aryl, C6 to C25 arylalkyl, and C6 to C25 alkylaryl, and R3 is a hydrogen atom or C1 to C10 alkyl, or R3 is a C1 to C10 alkylene group that connects to said first ring and/or to said at least one second ring or ring system. The present application also relates to a process for the polymerization of olefins, preferably propylene, using this and other catalyst systems, as well as to polymers made by said process.
摘要翻译：本申请涉及用于烯烃聚合的新型催化剂体系，其包含具有下式的新的离子活化剂：[R 1 R 2 R 3 AH] + [Y] - ，其中[Y] - 是非配位阴离子（NCA），A是氮或磷，R 1和R 2是烃基或含杂原子的烃基，并且与A一起形成第一个3至10元非芳族环，其中任何数量的相邻环成员可以任选地是至少一个第二个是两个或更多个环的芳族或脂族环或脂族和/或芳族环系，其中所述至少一个第二环或环系与所述第一环稠合，并且其中第一和/或至少一个第二环或环系是碳原子或杂原子，并且可以被一个或多个选自氢原子，卤素原子，C 1至C 10烷基，C 5至C 15芳基，C 6至C 25芳烷基，和C 6至C 25烷基芳基，R 3是氢原子或C1至C10烷基，或R3是连接到所述第一环和/或所述至少一个第二环或环系的C1至C10亚烷基。本申请还涉及使用这种和其它催化剂体系以及通过所述方法制备的聚合物来聚合烯烃，优选丙烯的方法。

58. 发明授权

US08993681B2 Dendritic ethylene polymers and processes for making 有权
标题翻译：树枝状乙烯聚合物和制备方法
公开(公告)号：US08993681B2
公开(公告)日：2015-03-31
申请号：US13182868
申请日：2011-07-14
申请人： Andy H. Tsou , Shuji Luo , Donna J. Crowther , Gabor Kiss , Johannes M. Soulages , Pradeep P. Shirodkar
发明人： Andy H. Tsou , Shuji Luo , Donna J. Crowther , Gabor Kiss , Johannes M. Soulages , Pradeep P. Shirodkar
IPC分类号： C08F279/02 , C08F36/20 , C08L45/00 , C08J3/24 , C08F255/06 , C08F8/02
CPC分类号： C08F36/20 , C08F8/02 , C08F255/06 , C08G83/002 , C08J3/24 , C08F210/18
摘要： Provided is a dendritic ethylene polymer. The polymer is a dendritic polymer of an ethylene/alpha-olefin-diene copolymer and a vinyl-terminated polyethylene. There is also provided a process for making a dendritic ethylene polymer. The process includes the steps of preparing a dendritic ethylene polymer by reacting ethylene/alpha-olefin-diene copolymer with vinyl-terminated polyethylene in the presence of a radical source. There is also provided a blend and a blown film that include the dendritic ethylene polymer.
摘要翻译：提供树枝状乙烯聚合物。聚合物是乙烯/α-烯烃 - 二烯共聚物和乙烯基封端的聚乙烯的树枝状聚合物。还提供了制备树枝状乙烯聚合物的方法。该方法包括在自由基源存在下使乙烯/α-烯烃 - 二烯共聚物与乙烯基封端的聚乙烯反应制备树枝状乙烯聚合物的步骤。还提供了包含树枝状乙烯聚合物的共混物和吹塑薄膜。

59. 发明授权

US08796376B2 Functionalized polymers and oligomers 有权
标题翻译：官能化聚合物和低聚物
公开(公告)号：US08796376B2
公开(公告)日：2014-08-05
申请号：US13430247
申请日：2012-03-26
申请人： Rahul R. Kulkarni , Pradeep P. Shirodkar , Alistair D. Westwood , Donna J. Crowther , Wei Tang
发明人： Rahul R. Kulkarni , Pradeep P. Shirodkar , Alistair D. Westwood , Donna J. Crowther , Wei Tang
IPC分类号： C09D5/16 , C09D123/36 , C08K3/34 , C07D237/08 , C08F8/30 , C08L23/36
CPC分类号： C07D237/08 , B82Y30/00 , C08C19/22 , C08F8/30 , C08K3/34 , C08K3/346 , C09D5/1662 , C09D123/36 , C08L23/36
摘要： A functionalized polyolefin having one or more pyridazine moieties is disclosed herein. A method to produce the functionalized polyolefin is also disclosed. A composition including the functionalized polyolefin is also disclosed.
摘要翻译：本文公开了具有一个或多个哒嗪部分的官能化聚烯烃。还公开了制备官能化聚烯烃的方法。还公开了包含官能化聚烯烃的组合物。

60. 发明授权

US08664461B2 Catalysts for producing polyalpha-olefins and processes related thereto 有权
标题翻译：用于生产聚α-烯烃的催化剂及其相关工艺
公开(公告)号：US08664461B2
公开(公告)日：2014-03-04
申请号：US13423686
申请日：2012-03-19
申请人： Bruce A. Harrington , Abhimanyu O. Patil , Donna J. Crowther , Phillip T. Matsunaga , Kevin B. Stavens , Catalina L. Coker
发明人： Bruce A. Harrington , Abhimanyu O. Patil , Donna J. Crowther , Phillip T. Matsunaga , Kevin B. Stavens , Catalina L. Coker
IPC分类号： C07C2/08 , C07C2/34 , C08F4/6592
CPC分类号： C08F110/14 , C08F210/16 , C08F10/00 , C08F4/6592 , C08F2500/02 , C08F2500/03 , C08F2500/17
摘要： This invention is directed to new mono-cyclopentadienyl (“mono-Cp”) metallocene catalyst compounds useful for producing high viscosity PAOs with narrow molecular weight distribution and good shear stability. Specifically, this invention relates to a group of bridged mono-Cp catalysts wherein, in an embodiment of the invention, the aromatic ring structure is substituted with: 1) at least one phenyl group, 2) at least one alkyl group, and 3) at least one other group, such as a hydrocarbyl group, a heteroatom, or a heteroatom-containing group.
摘要翻译：本发明涉及用于生产具有窄分子量分布和良好剪切稳定性的高粘度PAO的新单环戊二烯（“一Cp”）茂金属催化剂化合物。具体地，本发明涉及一组桥连的单Cp催化剂，其中在本发明的一个实施方案中，芳环结构被以下物质取代：1）至少一个苯基，2）至少一个烷基，和3）至少一个其它基团，例如烃基，杂原子或含杂原子的基团。

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