专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1995007939A1 POLYMERIZATION CATALYST SYSTEMS, THEIR PRODUCTION AND USE 审中-公开
标题翻译：聚合催化剂体系，其生产和使用
公开(公告)号：WO1995007939A1
公开(公告)日：1995-03-23
申请号：PCT/US1994009629
申请日：1994-08-29
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , JEJELOWO, Moses, Olukayode , BAMBERGER, Robert, Lee , SAGAR, Vispi, Ruston
IPC分类号： C08F04/02
CPC分类号： C08F10/00 , C08F4/63904 , C08F4/63908 , C08F4/63912 , C08F4/63916 , C08F4/6392 , C08F210/16 , C08F210/08 , C08F2500/12
摘要： This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for supporting the catalyst of the invention provides for a supported bulky ligand transition metal metallocene catalyst having improved activity which when utilized in a polymerization process substantially reduces the reactor fouling and sheeting particularly in a gas phase polymerization process. In one embodiment a method is provided to produce a supported bulky ligand transition metal catalyst system by contacting a porous carrier with at least one bulky ligand transition metal compound, such as a metallocene compound, followed by the addition of a cocatalyst or activator. In another embodiment a method is provided to produce a supported catalyst system by contacting a porous carrier with an organometallic compound then adding at least one metallocene component followed by an activator. In another embodiment the activator of the invention is hydrolyzed at least once after its initial formation. In another embodiment of the invention, there is provided a process for producing polyolefins by contacting olefin monomer, optionally with comonomer in the presence of the catalyst system described above.
摘要翻译：本发明通常涉及用于聚合烯烃的负载型催化剂体系。用于支撑本发明的催化剂的方法提供了具有改善的活性的支撑的大体积配体过渡金属茂金属催化剂，其在聚合过程中使用时，特别是在气相聚合方法中基本上减少反应器结垢和压片。在一个实施方案中，提供了通过使多孔载体与至少一种大体积配体过渡金属化合物如茂金属化合物接触，然后加入助催化剂或活化剂来制备支撑的大体积配体过渡金属催化剂体系的方法。在另一个实施方案中，提供了通过使多孔载体与有机金属化合物接触然后加入至少一种茂金属组分，然后加入活化剂来制备负载型催化剂体系的方法。在另一个实施方案中，本发明的活化剂在其初始形成后至少水解一次。在本发明的另一个实施方案中，提供了一种通过在上述催化剂体系存在下任选与共聚单体接触的烯烃单体来生产聚烯烃的方法。

2. 发明申请

WO1993009148A1 PROCESS FOR PRODUCING POLYOLEFIN 审中-公开
标题翻译：生产聚烯烃的方法
公开(公告)号：WO1993009148A1
公开(公告)日：1993-05-13
申请号：PCT/US1992009250
申请日：1992-10-26
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , JEJELOWO, Moses, Olukayode , BAMBERGER, Robert, Lee
IPC分类号： C08F04/602
CPC分类号： C08F210/16 , C08F4/63904 , C08F4/63908 , C08F4/63912 , C08F4/63916 , C08F4/6392 , C08F10/00 , C08F4/63925 , C08F210/08 , C08F2500/03 , C08F2500/06 , C08F2500/17 , C08F2500/10 , C08F2500/26 , C08F2500/04
摘要： A process for producing polyolefins having a controllable broadened molecular weight distribution utilizing transition metal metallocene catalyst systems, wherein the metallocene has at least one cyclopentadienyl ring which is substituted by a substituent having a 2 DEG or 3 DEG carbon atom through which it is covalently bonded to the cyclopentadienyl ring.
摘要翻译：一种利用过渡金属茂金属催化剂体系制备具有可控制的扩大分子量分布的聚烯烃的方法，其中金属茂具有至少一个被具有2或3个碳原子的取代基取代的环戊二烯基环，通过它与其共价键合到环戊二烯基环。

3. 发明申请

WO1995021874A1 POLYMERIZATION CATALYST SYSTEMS, THEIR PRODUCTION AND USE 审中-公开
标题翻译：聚合催化剂体系，其生产和使用
公开(公告)号：WO1995021874A1
公开(公告)日：1995-08-17
申请号：PCT/US1995001763
申请日：1995-02-13
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , JEJELOWO, Moses, Olukayode
IPC分类号： C08F04/76
CPC分类号： C08F10/00 , C08F4/61916 , C08F4/61922 , C08F4/65916 , C08F4/6592 , Y10S526/901 , Y10S526/904 , Y10S526/943 , C08F4/76
摘要： This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The invention particularly relates to a supported metallocene catalyst system that does not require an activator or cocatalyst for the polymerization of olefins.
摘要翻译：本发明通常涉及用于聚合烯烃的负载型催化剂体系。本发明特别涉及不需要用于烯烃聚合的活化剂或助催化剂的负载金属茂催化剂体系。

4. 发明申请

WO1995010542A1 POLYMERIZATION CATALYST SYSTEMS, THEIR PRODUCTION AND USE 审中-公开
标题翻译：聚合催化剂体系，其生产和使用
公开(公告)号：WO1995010542A1
公开(公告)日：1995-04-20
申请号：PCT/US1994010178
申请日：1994-09-09
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , JEJELOWO, Moses, Olukayode
IPC分类号： C08F04/02
CPC分类号： C08F210/16 , C08F4/63912 , C08F4/63916 , C08F4/6392 , C08F10/00 , Y10S526/904 , C08F210/08 , C08F2500/01 , C08F2500/12
摘要： The invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for forming the catalyst system of the invention provides for supporting a bulky ligand transition metal compound on a carrier and separately supporting a cocatalyst or activator for the bulky compound. The bulky ligand transition metal compound of the invention can be a metallocene. The metallocene catalyst systems of the invention have unexpectedly high activity as compared with most catalysts systems previously described where the metallocene and activator are on one carrier. The invention provides for the ability to manipulate the catalyst system easily by varying the quantities of the individually supported components of the invention. Until now previous catalyst system had to be reformulated from scratch, which is expensive and time consuming. Additionally it is now possible with catalyst systems of the invention to conveniently change the catalyst system, by adjusting the catalyst to activator ratio in a continuous polymerization process, particularly in gas phase process and to allow for quicker transitioning periods between polymer grades.
摘要翻译：本发明通常涉及用于聚合烯烃的负载型催化剂体系。形成本发明的催化剂体系的方法提供了在载体上负载大体积配体过渡金属化合物，并分别支撑用于大体积化合物的助催化剂或活化剂。本发明的体积大的配体过渡金属化合物可以是茂金属。与先前描述的金属茂和活化剂在一种载体上的催化剂体系相比，本发明的茂金属催化剂体系具有出人意料的高活性。本发明提供了通过改变本发明的单独支撑的组分的量容易地操作催化剂体系的能力。直到现在以前的催化剂体系必须从零开始重新制定，这是昂贵和耗时的。此外，现在可以通过在连续聚合方法中，特别是在气相方法中调节催化剂与活化剂的比例来方便地改变催化剂体系，并允许聚合物等级之间更快的过渡时间。

5. 发明申请

WO1995004761A1 POLYMERIZATION CATALYSTS, THEIR PRODUCTION AND USE 审中-公开
标题翻译：聚合催化剂，其生产和使用
公开(公告)号：WO1995004761A1
公开(公告)日：1995-02-16
申请号：PCT/US1994008909
申请日：1994-08-03
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , JEJELOWO, Moses, Olukayode , BAMBERGER, Robert, Lee
IPC分类号： C08F04/622
CPC分类号： C08F210/16 , C08F4/63904 , C08F4/63912 , C08F4/63916 , C08F4/63922 , C08F10/00 , C08L23/0815 , C08L2314/06 , C08F210/14 , C08F2500/03 , C08F2500/11 , C08F2500/12 , C08F2500/06 , C08F2500/26 , C08F210/08
摘要： This invention is directed toward the polymerization of olefins, optionally with a comonomer in the presence of metallocene catalyst to produce a polymer product having a controlled molecular weight distribution, ranging from narrow to broad, a high molecular weight and a narrow composition distribution. The catalyst of the invention provides for linear polyethylenes and ethylene- alpha -olefin copolymers with substantially higher melt strength than linear polyethylenes produced with a conventional Ziegler-Natta catalyst or a typical metallocene catalyst. The invention provides a catalyst for polymerizing olefins comprising a first component comprising at least one transition metal of Group IV, V or VI and bonded to at least two cyclopentadienyl containing rings, said rings each having at least two substituents bonded to each of said rings in the same position; a second component comprising said transition metal and said cyclopentadienyl containing rings, said rings each having at least two substituents bonded to each of said rings in the same or different position than said substituents of said first component; said substituents of the said first and second components can be the same or different, with the provision that when the substituents of said first and second components are the same, said substituents of said components are bonded to said rings in different positions; and a third component comprising said transition metal bonded to said cyclopentadienyl containing rings where one of said rings is substituted identically as said first component and another of said rings is substituted identically as said second component. The invention further provides for catalyst systems comprising the catalyst component above in combination with a cocatalyst and/or activator for the catalyst. The cocatalyst or activator can be either alumoxane or an ionic activator.
摘要翻译：本发明涉及在茂金属催化剂存在下任选与共聚单体聚合的烯烃，以产生具有受控的分子量分布范围从窄到高，高分子量和窄组成分布的聚合物产物。本发明的催化剂提供了线性聚乙烯和乙烯-α-烯烃共聚物，其熔体强度明显高于用常规的齐格勒 - 纳塔催化剂或典型的茂金属催化剂生产的直链聚乙烯。本发明提供了一种用于聚合烯烃的催化剂，其包含第一组分，其包含至少一种IV，V或VI族过渡金属，并与至少两个含环戊二烯基的环结合，所述环各自具有至少两个与每个所述环相连的取代基同样的立场; 包含所述过渡金属和所述环戊二烯基环的第二组分，所述环各自具有至少两个与所述第一组分的所述取代基相同或不同位置的每个环结合的取代基; 所述第一和第二组分的所述取代基可以相同或不同，条件是当所述第一和第二组分的取代基相同时，所述组分的所述取代基在不同位置键合到所述环上; 以及第三组分，其包含与所述环戊二烯基环的键合的所述过渡金属，其中所述环中的一个与所述第一组分相同地被取代，所述环的另一个与所述第二组分相同地被取代。本发明进一步提供了包含上述催化剂组分与用于催化剂的助催化剂和/或活化剂组合的催化剂体系。助催化剂或活化剂可以是铝氧烷或离子活化剂。

6. 发明申请

WO1998002470A2 OLEFIN POLYMERIZATION PROCESS WITH ALKYL-SUBSTITUTED METALLOCENES 审中-公开
标题翻译：烯烃取代金属的烯烃聚合方法
公开(公告)号：WO1998002470A2
公开(公告)日：1998-01-22
申请号：PCT/US1997012352
申请日：1997-07-16
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , FLOYD, Joseph, C. , JEJELOWO, Moses, Olukayode , CROWTHER, Donna, Jean , VAUGHN, George, Alan , LUE, Ching-Tai
IPC分类号： C08F10/00
CPC分类号： C08F210/16 , C08F4/61916 , C08F4/61922 , C08F10/02 , C08F210/14 , C08F2500/12 , C08F2500/06
摘要： The invention comprises an olefin polymerization process comprising contacting ethylene alone or with one or more olefinically unsaturated comonomers with a Group 3-6 metallocene catalyst compound comprising one pi -bonded ring having a C3 or greater hydrocarbyl, hydrocarbylsilyl or hydrocarbylgermyl substituent, said substituent bonded to the ring through a primary carbon atom; and, where the compound contains two pi -bonded rings, the total number of substituents on the rings is equal to a number from 3 to 10, said rings being asymmetrically substituted where the number of substituents is 3 or 4. The invention process is particularly suitable for preparing ethylene copolymers having an MIR less than about 35, while retaining narrow CD even at high comonomer incorporation rates, and with certain embodiments providing ethylene copolymers having improved melt strength with the low MIR.
摘要翻译：本发明包括烯烃聚合方法，包括使乙烯单独或与一种或多种烯属不饱和共聚单体与3-6族茂金属催化剂化合物接触，所述组合物包含一个具有C3或更多烃基，烃基甲硅烷基或烃基锗原子取代基的π键环，所述取代基与环通过伯碳原子; 并且当化合物含有两个π键环时，环上的取代基的总数等于3至10的数，所述环是不对称取代的，其中取代基的数目为3或4.本发明方法特别适于制备具有小于约35的MIR的乙烯共聚物，同时保持窄的CD，即使在高共聚单体掺入速率下，并且在某些实施方案中提供具有改进的熔融强度的低MIR的乙烯共聚物。

7. 发明申请

WO1996001856A1 POLYMERIZATION CATALYST SYSTEMS, THEIR PRODUCTION AND USE 审中-公开
标题翻译：聚合催化剂体系，其生产和使用
公开(公告)号：WO1996001856A1
公开(公告)日：1996-01-25
申请号：PCT/US1995005194
申请日：1995-04-27
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , JEJELOWO, Moses, Olukayode
IPC分类号： C08F10/00
CPC分类号： C08F10/00 , C08F4/61912 , C08F4/61916 , C08F4/6192 , Y10S526/943
摘要： This invention is generally directed toward a catalyst system useful for polymerizing olefins. The method for preparing the catalyst of the invention provides for combining a bulky ligand transition metal catalyst with an activator that has been aged, optionally with a support. The catalyst system is useful in any polymerization process.
摘要翻译：本发明一般涉及可用于聚合烯烃的催化剂体系。制备本发明的催化剂的方法提供了将大体积配体过渡金属催化剂与已经老化的活化剂，任选地与载体组合。催化剂体系可用于任何聚合过程。

8. 发明申请

WO1995014044A1 POLYMERIZATION CATALYST SYSTEMS, THEIR PRODUCTION AND USE 审中-公开
标题翻译：聚合催化剂体系，其生产和使用
公开(公告)号：WO1995014044A1
公开(公告)日：1995-05-26
申请号：PCT/US1994010171
申请日：1994-09-09
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , JEJELOWO, Moses, Olukayode , HLATKY, Gregory, George
IPC分类号： C08F04/02
CPC分类号： C08F10/00 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F4/6592 , C08F2420/02
摘要： This invention is generallly directed toward a supported catalyst system useful for polymerizing olefins. The method for forming the catalyst system of the invention provides for combining a monocyclopentadienyl bulky ligand transition metal catalyst system with a separately supported organometallic compound. A preferred method provides for supporting the catalyst system on a carrier and contacting such supported system with a separately supported organometallic compound. The bulky ligand transition metal compound used in the catalyst system of the invention can be a metallocene. The ionic metallocene catalyst systems of the invention have unexpectedly high activity as compared to the catalyst systems previously described. In one embodiment of the present invention the supported catalyst is a monocylcopentadienyl transition metal metallocene compound and an ionic activator. Thus, the supported catalyst system of the present invention is broadly defined as a catalyst system which comprises a carrier, a monocyclopentadienyl bridged heteroatom transition metal containing compound, an ionic activator and a supported organometallic compound.
摘要翻译：本发明总体上涉及用于聚合烯烃的负载型催化剂体系。形成本发明的催化剂体系的方法提供了将单环戊二烯基体积大的配体过渡金属催化剂体系与单独负载的有机金属化合物组合。一种优选的方法提供了将载体上的催化剂体系支撑并使这种负载体系与单独负载的有机金属化合物接触。用于本发明的催化剂体系中的体积大的配体过渡金属化合物可以是茂金属。与先前描述的催化剂体系相比，本发明的离子金属茂催化剂体系具有出乎意料的高活性。在本发明的一个实施方案中，负载型催化剂是单甲基戊二烯基过渡金属茂金属化合物和离子活化剂。因此，本发明的负载型催化剂体系被广义地定义为包含载体，单环戊二烯基桥连杂原子过渡金属化合物，离子活化剂和负载型有机金属化合物的催化剂体系。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式