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1. 发明申请

US20140080970A1 MULTI-METALLIC ZIEGLER-NATTA PROCATALYSTS AND CATAYSTS PREPARED THEREFROM FOR OLEFIN POLYMERIZATIONS 有权
标题翻译：用于烯烃聚合制备的多金属ZIEGLER-NATTA PROCATALYSTS和CATAYSTS
公开(公告)号：US20140080970A1
公开(公告)日：2014-03-20
申请号：US14116070
申请日：2012-05-23
申请人： Sylvie Desjardins , Mehmet Demirors , Ellen Donkers , Manvel Fontaine , Cristina Serrat
发明人： Sylvie Desjardins , Mehmet Demirors , Ellen Donkers , Manvel Fontaine , Cristina Serrat
IPC分类号： C08F4/685
CPC分类号： C08F110/02 , C08F4/685 , C08F10/02 , C08F210/16 , C08F2410/03 , C08J5/18 , C08J2323/06 , D01F6/04 , C08F4/6341 , C08F4/6385 , C08F4/6374 , C08F210/14 , C08F2500/08 , C08F2500/12 , C08F2500/26 , C08F4/6357
摘要： Novel catalyst compositions comprising three or more transition metals are effective in increasing catalyst efficiency, reducing polydispersity, and increasing uniformity in molecular weight distribution when used in olefin, and particularly, linear low density polyethylene (LLDPE), polymerizations. The resulting polymers may be used to form differentiated products including, for example, films that may exhibit improved optical and mechanical properties.
摘要翻译：包含三种或更多种过渡金属的新型催化剂组合物在用于烯烃，特别是线性低密度聚乙烯（LLDPE））聚合中时，有效地提高催化剂效率，降低多分散性和增加分子量分布的均匀性。所得聚合物可用于形成分化产物，包括例如可能表现出改善的光学和机械性能的膜。

2. 发明授权

US08273449B2 Polyethylene films and method of making the same 有权
标题翻译：聚乙烯薄膜及其制作方法
公开(公告)号：US08273449B2
公开(公告)日：2012-09-25
申请号：US12594963
申请日：2008-04-04
申请人： Sylvie Desjardins , Marc A. Springs , Phillip D. Hustad , Nathan J. Wiker , Jesus Nieto , Wayde V. Konze
发明人： Sylvie Desjardins , Marc A. Springs , Phillip D. Hustad , Nathan J. Wiker , Jesus Nieto , Wayde V. Konze
IPC分类号： C08F210/02 , B32B27/32
CPC分类号： C08F210/16 , C08J5/18 , C08J2323/08 , C08F4/52 , C08F210/14 , C08F2500/03 , C08F2500/12 , C08F2500/17 , C08F2500/26
摘要： The instant invention is a polyethylene film, and method of making the same. The polyethylene film according to instant invention includes at least one heterogeneously branched ethylene/α-olefin copolymer having a density in the range of about 0.910 to about 0.930 g/cm3, a molecular weight distribution in the range of about 2.8 to 3.8, a melt index (I2) in the range of about 0.3 to about 4 g/10 min, and an I10/I2 ratio in the range of 6.5 to about 7.8. The film has a normalized dart impact strength of equal or greater than (6666-7012*density) g/mil, a normalized tear strength of equal or greater than (440*e−(density−0.915)2/2*(0.00949)2) g/mil, and a haze in the range of 3 to 10 percent. The method of making the polyethylene film according to instant invention includes the following steps: (1) providing at least one heterogeneously branched ethylene/α-olefin copolymer having a density in the range of about 0.910 to about 0.930 g/cm3, a molecular weight distribution in the range of about 2.8 to 3.8, a melt index (I2) in the range of about 0.3 to about 4 g/10 min, and an I10/I2 ratio in the range of 6.5 to about 7.8; (2) processing the heterogeneously branched ethylene/α-olefin copolymer via blown film extrusion process or cast film extrusion process; and (3) thereby forming a film having a normalized dart impact strength of equal or greater than (6666-7012*density) g/mil, a normalized tear strength of equal or greater than (440*e−(density−0.915)2/2*(0.00949)2) g/mil, and a haze in the range of 3 to 10 percent.
摘要翻译：本发明是一种聚乙烯薄膜及其制造方法。根据本发明的聚乙烯膜包括至少一种非均相支化的乙烯/α-烯烃共聚物，其密度在约0.910至约0.930g / cm 3范围内，分子量分布在约2.8至3.8的范围内，熔体指数（I 2）在约0.3至约4g / 10min的范围内，I10 / I2比在6.5至约7.8的范围内。标准化的落镖冲击强度等于或大于（6666-7012 *密度）g / mil，归一化的撕裂强度等于或大于（440 * e-（密度-0.915）2/2 *（0.00949） 2）g / mil，雾度在3％至10％的范围内。根据本发明的制备聚乙烯膜的方法包括以下步骤：（1）提供至少一种密度在约0.910至约0.930g / cm 3范围内的非均匀支化的乙烯/α-烯烃共聚物，分子量分布在约2.8至3.8的范围内，熔体指数（I 2）在约0.3至约4g / 10min的范围内，I10 / I2比在6.5至约7.8的范围内; （2）通过吹膜挤出法或流延膜挤出法处理非均匀支化的乙烯/α-烯烃共聚物; （3），由此形成具有等于或大于（6666-7012 *密度）g / mil的标准化落镖冲击强度的膜，标准化的撕裂强度等于或大于（440 * e-（密度-0.915）2 /2*(0.00949)2）g / mil，雾度在3％到10％的范围内。

3. 发明申请

US20100119793A1 POLYETHYLENE FILMS AND METHOD OF MAKING THE SAME 有权
标题翻译：聚乙烯薄膜及其制备方法
公开(公告)号：US20100119793A1
公开(公告)日：2010-05-13
申请号：US12594963
申请日：2008-04-04
申请人： Sylvie Desjardins , Marc A. Springs , Phillip D. Hustad , Nathan J. Wiker , Jesus Nieto , Wayde V. Konze
发明人： Sylvie Desjardins , Marc A. Springs , Phillip D. Hustad , Nathan J. Wiker , Jesus Nieto , Wayde V. Konze
IPC分类号： B32B27/32 , C08F210/02 , C08F210/14 , B29C47/14
CPC分类号： C08F210/16 , C08J5/18 , C08J2323/08 , C08F4/52 , C08F210/14 , C08F2500/03 , C08F2500/12 , C08F2500/17 , C08F2500/26
摘要： The instant invention is a polyethylene film, and method of making the same. The polyethylene film according to instant invention includes at least one heterogeneously branched ethylene/α-olefin copolymer having a density in the range of about 0.910 to about 0.930 g/cm3, a molecular weight distribution in the range of about 2.8 to 3.8, a melt index (I2) in the range of about 0.3 to about 4 g/10 min, and an I10/I2 ratio in the range of 6.5 to about 7.8. The film has a normalized dart impact strength of equal or greater than (6666-7012*density) g/mil, a normalized tear strength of equal or greater than (440*e−(density−0.915)2/2*(0.00949)2) g/mil, and a haze in the range of 3 to 10 percent. The method of making the polyethylene film according to instant invention includes the following steps: (1) providing at least one heterogeneously branched ethylene/α-olefin copolymer having a density in the range of about 0.910 to about 0.930 g/cm3, a molecular weight distribution in the range of about 2.8 to 3.8, a melt index (I2) in the range of about 0.3 to about 4 g/10 min, and an I10/I2 ratio in the range of 6.5 to about 7.8; (2) processing the heterogeneously branched ethylene/α-olefin copolymer via blown film extrusion process or cast film extrusion process; and (3) thereby forming a film having a normalized dart impact strength of equal or greater than (6666-7012*density) g/mil, a normalized tear strength of equal or greater than (440*e−(density−0.915)2/2*(0.00949)2) g/mil, and a haze in the range of 3 to 10 percent.
摘要翻译：本发明是一种聚乙烯薄膜及其制造方法。根据本发明的聚乙烯膜包括至少一种非均相支化的乙烯/α-烯烃共聚物，其密度在约0.910至约0.930g / cm 3范围内，分子量分布在约2.8至3.8的范围内，熔体指数（I 2）在约0.3至约4g / 10min的范围内，I10 / I2比在6.5至约7.8的范围内。标准化的落镖冲击强度等于或大于（6666-7012 *密度）g / mil，归一化的撕裂强度等于或大于（440 * e-（密度-0.915）2/2 *（0.00949） 2）g / mil，雾度在3％至10％的范围内。根据本发明的制备聚乙烯膜的方法包括以下步骤：（1）提供至少一种密度在约0.910至约0.930g / cm 3范围内的非均匀支化的乙烯/α-烯烃共聚物，分子量分布在约2.8至3.8的范围内，熔体指数（I 2）在约0.3至约4g / 10min的范围内，I10 / I2比在6.5至约7.8的范围内; （2）通过吹膜挤出法或流延膜挤出法处理非均匀支化的乙烯/α-烯烃共聚物; （3），由此形成具有等于或大于（6666-7012 *密度）g / mil的标准化落镖冲击强度的膜，标准化的撕裂强度等于或大于（440 * e-（密度-0.915）2 /2*(0.00949)2）g / mil，雾度在3％到10％的范围内。

4. 发明授权

US08901260B2 Heterogeneous ethylene alpha-olefin interpolymers 有权
标题翻译：非均相乙烯α-烯烃互聚物
公开(公告)号：US08901260B2
公开(公告)日：2014-12-02
申请号：US12750311
申请日：2010-03-30
申请人： Ayush A. Bafna , Mehmet Demirors , Sylvie Desjardins , Douglas S. Ginger , Colleen M. Tice , Terry A. Pearce
发明人： Ayush A. Bafna , Mehmet Demirors , Sylvie Desjardins , Douglas S. Ginger , Colleen M. Tice , Terry A. Pearce
IPC分类号： C08F210/16 , C08L23/08 , C08F4/60 , C08L23/06 , B32B7/02 , B32B27/32
CPC分类号： C08L23/06 , B32B7/02 , B32B27/32 , C08F210/16 , C08L23/0815 , Y10T428/31913 , Y10T428/31938 , C08L2666/06 , C08L2666/02 , C08F210/14 , C08F2500/12 , C08F2500/03 , C08F2500/08 , C08F2500/26
摘要： An interpolymer of ethylene and at least one alpha-olefin is claimed, wherein the ethylene interpolymer is characterized as having an average Mv and a valley temperature between the interpolymer and high crystalline fraction, Thc, such that the average Mv for a fraction above Thc from ATREF divided by average Mv of the whole polymer from ATREF (Mhc/Mp) is less then about 1.95 and wherein the interpolymer has a CDBI of less than 60%. The interpolymer of ethylene and at least one alpha-olefin can also be characterized as having a high density (HD) fraction and an overall density such that % HD fraction
摘要翻译：要求保护乙烯和至少一种α-烯烃的互聚物，其中乙烯互聚物的特征在于具有平均Mv和互聚物与高结晶部分Thc之间的谷值温度，使得在Thc以上的馏分的平均Mv为 ATREF除以ATREF（Mhc / Mp）的全部聚合物的平均Mv小于约1.95，其中互聚物的CDBI小于60％。乙烯和至少一种α-烯烃的互聚物也可以表征为具有高密度（HD）级分和总体密度，使得％HD分数<-2733.3 + 2988.7×+ 144111.5（x-0.92325）2，其中x为密度以克/立方厘米计。还公开了包含新型互聚物的制造物品。

5. 发明申请

US20120041148A1 HETEROGENEOUS ETHYLENE/ALPHA-OLEFIN INTERPOLYMER 审中-公开
标题翻译：异构乙烯/丙烯酰胺嵌段共聚物
公开(公告)号：US20120041148A1
公开(公告)日：2012-02-16
申请号：US13262554
申请日：2010-03-30
申请人： Ayush A. Bafna , Mehmet Demirors , Sylvie Desjardins , Douglas S. Ginger , Colleen M. Tice , Terry A. Pearce
发明人： Ayush A. Bafna , Mehmet Demirors , Sylvie Desjardins , Douglas S. Ginger , Colleen M. Tice , Terry A. Pearce
IPC分类号： C08F210/02 , C08F4/42 , C08F4/12 , C08L23/04 , C08L23/06
CPC分类号： C08L23/06 , B32B7/02 , B32B27/32 , C08F210/16 , C08L23/0815 , Y10T428/31913 , Y10T428/31938 , C08L2666/06 , C08L2666/02 , C08F210/14 , C08F2500/12 , C08F2500/03 , C08F2500/08 , C08F2500/26
摘要： An interpolymer of ethylene and at least one alpha-olefin is claimed, wherein the ethylene interpolymer is characterized as having an average Mv and a valley temperature between the interpolymer and high crystalline fraction, Thc, such that the average Mv for a fraction above Thc from ATREF divided by average Mv of the whole polymer from ATREF (Mhc/Mp) is less then about 1.95 and wherein the interpolymer has a CDBI of less than 60%. The interpolymer of ethylene and at least one alpha-olefin can also be characterized as having a high density (HD) fraction and an overall density such that % HD fraction
摘要翻译：要求保护乙烯和至少一种α-烯烃的互聚物，其中乙烯互聚物的特征在于具有平均Mv和互聚物与高结晶部分Thc之间的谷值温度，使得在Thc以上的馏分的平均Mv为 ATREF除以ATREF（Mhc / Mp）的全部聚合物的平均Mv小于约1.95，其中互聚物的CDBI小于60％。乙烯和至少一种α-烯烃的互聚物也可以表征为具有高密度（HD）级分和总体密度，使得％HD分数<-2733.3 + 2988.7×+ 144111.5（x-0.92325）2，其中x为密度以克/立方厘米计。还公开了包含新型互聚物的制造物品。

6. 发明授权

US08034878B2 Low molecular weight ethylene interpolymers, methods of making, and uses thereof 有权
标题翻译：低分子量乙烯互聚物，制备方法及其应用
公开(公告)号：US08034878B2
公开(公告)日：2011-10-11
申请号：US12159514
申请日：2006-12-12
申请人： Teresa P. Karjala , Selim Yalvac , Cynthia L. Rickey , Sylvie Desjardins , Marc A. Springs
发明人： Teresa P. Karjala , Selim Yalvac , Cynthia L. Rickey , Sylvie Desjardins , Marc A. Springs
IPC分类号： C08L23/00 , C08L23/04 , C08L23/10
CPC分类号： C08F10/00 , C08F10/02 , C08F210/16 , C08L23/0815 , C08L51/06 , C08L2205/02 , C08L2205/025 , C08L2308/00 , C08L2314/06 , C08F4/64 , C08L2666/24 , C08L2666/06 , C08F210/14 , C08F2500/02 , C08F2500/03 , C08F2500/20 , C08F2500/17 , C08F2500/01 , C08F4/64079 , C08F4/64013
摘要： The invention provides a comprising one or more ethylene interpolymers, and wherein the interpolymers, or the composition, has a melt viscosity from 1 to 30,000 cP at 177° C., and wherein at least one ethylene interpolymer has an Rv from 0.3 to 0.99. The invention further provides a composition comprising at least one low molecular weight (LMW) ethylene interpolymer, and at least one high molecular weight (HMW) ethylene interpolymer, and wherein the composition has a melt viscosity from 1 to 30,000 cP at 177° C., and wherein the sum of the Rv from the low molecular weight interpolymer and the high molecular weight interpolymer is from 0.3 to 2. The invention further provides for processes of making such compositions, processes for functionalizing the interpolymer(s) of such compositions, and articles comprising at least one component prepared from an inventive composition.
摘要翻译：本发明提供包含一种或多种乙烯互聚物，并且其中互聚物或组合物在177℃下的熔体粘度为1至30,000cP，并且其中至少一种乙烯互聚物的Rv为0.3-0.99。本发明还提供包含至少一种低分子量（LMW）乙烯互聚物和至少一种高分子量（HMW）乙烯互聚物的组合物，并且其中该组合物在177℃具有1至30,000cP的熔体粘度，并且其中来自低分子量互聚物和高分子量互聚物的Rv的总和为0.3至2.本发明还提供了制备这种组合物的方法，使这种组合物的互聚物官能化的方法，以及包含由本发明组合物制备的至少一种组分的制品。

7. 发明授权

US07683003B2 Method for identifying Ziegler-Natta cocatalysts 有权
标题翻译：识别齐格勒 - 纳塔助催化剂的方法
公开(公告)号：US07683003B2
公开(公告)日：2010-03-23
申请号：US11596335
申请日：2005-05-13
申请人： Richard E. Campbell, Jr. , Sylvie Desjardins , Phillip D. Hustad , Duane R. Romer
发明人： Richard E. Campbell, Jr. , Sylvie Desjardins , Phillip D. Hustad , Duane R. Romer
IPC分类号： C08F4/64 , C08F4/642 , C08F4/646
CPC分类号： B01J31/0272 , B01J19/0046 , B01J27/138 , B01J31/0212 , B01J31/128 , B01J31/143 , B01J31/26 , B01J2219/00283 , B01J2219/00286 , B01J2219/00308 , B01J2219/00315 , B01J2219/00322 , B01J2219/00353 , B01J2219/00369 , B01J2219/00423 , B01J2219/00477 , B01J2219/00495 , B01J2219/00585 , B01J2219/00689 , B01J2219/00691 , B01J2219/00704 , B01J2219/00707 , B01J2219/00736 , B01J2219/00738 , B01J2219/00747 , C08F210/16 , C08F4/6555 , C08F210/14 , C08F2500/12
摘要： A method for identifying a catalyst composition for use in the heterogeneous Ziegler-Natta addition polymerization of an olefin monomer, said catalyst composition comprising a procatalyst comprising a magnesium and titanium containing procatalyst and a cocatalyst said method comprising: a) providing a library comprising at least one procatalyst compound, b) forming a catalyst composition library by contacting the member of said procatalyst library with one or more cocatalysts and contacting the resulting mixture with an olefin monomer under olefin polymerization conditions thereby causing the polymerization reaction to take place, c) measuring at least one variable of interest during the polymerization, and d) selecting the catalyst composition of interest by reference to said measured variable.
摘要翻译：一种用于鉴定用于烯烃单体的异质齐格勒 - 纳塔加成聚合的催化剂组合物的方法，所述催化剂组合物包含含有镁和钛的前催化剂的前催化剂和助催化剂，所述方法包括：a）提供至少包含一种主催化剂化合物，b）通过使所述前催化剂文库的成员与一种或多种助催化剂接触而形成催化剂组合物文库，并在烯烃聚合条件下使所得混合物与烯烃单体接触，从而引起聚合反应，c）在聚合过程中至少一个感兴趣的变量，以及d）通过参考所述测量的变量来选择感兴趣的催化剂组合物。

8. 发明申请

US20090215190A1 APPARATUS AND METHOD FOR EXOTHERMIC AND ENDOTHERMIC REACTIONS 审中-公开
标题翻译：装置和方法用于外部和内部反应
公开(公告)号：US20090215190A1
公开(公告)日：2009-08-27
申请号：US12389820
申请日：2009-02-20
申请人： Pamela J. Stirn , Charles A. Nielsen , Sylvie Desjardins , David R. Neithamer , Paul L. Morabito , Marc A. Springs
发明人： Pamela J. Stirn , Charles A. Nielsen , Sylvie Desjardins , David R. Neithamer , Paul L. Morabito , Marc A. Springs
IPC分类号： G01N25/00
CPC分类号： G01N25/484 , G01K17/00
摘要： The present invention generally relates to an apparatus and method for running a plurality of essentially simultaneous exothermic reactions, endothermic reactions, or a combination thereof in sealed reactors and obtaining physico-chemical data, preferably temperature data, and, optionally, time data, for the reactions, wherein reaction mixtures in the sealed reactors are adiabatically thermally insulated from one another so that temperature in one sealed reactor does not materially affect temperature in any other, including an adjacent, sealed reactor.
摘要翻译：本发明一般涉及用于在密封反应器中运行多个基本上同时进行的放热反应或吸热反应或其组合的装置和方法，并获得物理化学数据，优选温度数据，以及可选地时间数据，用于反应，其中密封反应器中的反应混合物彼此绝热地绝热，使得一个密封的反应器中的温度不会在任何其它物质（包括相邻的密封反应器）中实质性地影响温度。

9. 发明申请

US20070276102A1 Method for Identifying Ziegler-Natta Cocatalysts 有权
标题翻译：识别齐格勒 - 纳塔助催化剂的方法
公开(公告)号：US20070276102A1
公开(公告)日：2007-11-29
申请号：US11596335
申请日：2005-05-13
申请人： Richard Campbell , Sylvie Desjardins , Phillip Hustad , Duane Romer
发明人： Richard Campbell , Sylvie Desjardins , Phillip Hustad , Duane Romer
IPC分类号： C08F2/00 , G01N31/10
CPC分类号： B01J31/0272 , B01J19/0046 , B01J27/138 , B01J31/0212 , B01J31/128 , B01J31/143 , B01J31/26 , B01J2219/00283 , B01J2219/00286 , B01J2219/00308 , B01J2219/00315 , B01J2219/00322 , B01J2219/00353 , B01J2219/00369 , B01J2219/00423 , B01J2219/00477 , B01J2219/00495 , B01J2219/00585 , B01J2219/00689 , B01J2219/00691 , B01J2219/00704 , B01J2219/00707 , B01J2219/00736 , B01J2219/00738 , B01J2219/00747 , C08F210/16 , C08F4/6555 , C08F210/14 , C08F2500/12
摘要： A method for identifying a catalyst composition for use in the heterogeneous Ziegler-Natta addition polymerization of an olefin monomer, said catalyst composition comprising a procatalyst comprising a magnesium and titanium containing procatalyst and a cocatalyst said method comprising: a) providing a library comprising at least one procatalyst compound, b) forming a catalyst composition library by contacting the member of said procatalyst library with one or more cocatalysts and contacting the resulting mixture with an olefin monomer under olefin polymerization conditions thereby causing the polymerization reaction to take place, c) measuring at least one variable of interest during the polymerization, and d) selecting the catalyst composition of interest by reference to said measured variable.
摘要翻译：一种用于鉴定用于烯烃单体的异质齐格勒 - 纳塔加成聚合的催化剂组合物的方法，所述催化剂组合物包含含有镁和钛的前催化剂的前催化剂和助催化剂，所述方法包括：a）提供至少包含一种主催化剂化合物，b）通过使所述前催化剂文库的成员与一种或多种助催化剂接触而形成催化剂组合物文库，并在烯烃聚合条件下使所得混合物与烯烃单体接触，从而引起聚合反应，c）在聚合过程中至少一个感兴趣的变量，以及d）通过参考所述测量的变量来选择感兴趣的催化剂组合物。

10. 发明申请

US20050020778A1 High melt strength polymers and method of making same 有权
公开(公告)号：US20050020778A1
公开(公告)日：2005-01-27
申请号：US10918906
申请日：2004-08-16
申请人： Alexander DeGroot , James Stevens , Sylvie Desjardins , Jeffrey Weinhold , Edmund Caenahan , David Gillespie , Daniel VanderLende
发明人： Alexander DeGroot , James Stevens , Sylvie Desjardins , Jeffrey Weinhold , Edmund Caenahan , David Gillespie , Daniel VanderLende
IPC分类号： C08F2/00 , C08F4/02 , C08F4/64 , C08F4/646 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F210/16 , C08F290/04 , C08L23/04 , C08L23/06 , C08L23/08 , C08L23/00
CPC分类号： C08F210/16 , C08F4/65908 , C08F4/65912 , C08F4/6592 , C08F4/65925 , C08F4/65927 , C08F10/00 , C08L23/04 , C08L23/06 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2207/07 , C08L2314/02 , C08L2314/06 , Y02P20/52 , Y10S526/943 , C08F2/001 , C08F4/65904 , C08F2/06 , C08L2666/04 , C08F210/14 , C08F2500/11 , C08F2500/12 , C08F2500/01 , C08F2500/03 , C08F2500/04 , C08F2500/02 , C08F2/00 , C08F2500/08 , C08F2500/05 , C08F2500/17 , C08F2500/26
摘要： A process of making a polymer is described. The process includes contacting one or more olefinic monomers in the presence of at least a high molecular weight (HMW) catalyst and at least a low molecular weight (LMW) catalyst in a polymerization reactor system; and effectuating the polymerization of the one or more olefinic monomers in the polymerization reactor system to obtain an olefin polymer, wherein the LMW catalyst has an RvL, defined as R v L = [ vinyl ] [ vinyl ] + [ vinylidene ] + [ cis ] + [ trans ] wherein [vinyl] is the concentration of vinyl groups in the olefin polymer produced by the low molecular weight catalyst expressed in vinyls/1,000 carbon atoms; [vinylidene], [cis] and [trans] are the concentration of vinylidene, cis and trans groups in the olefin polymer expressed in the number of the respective groups per 1,000 carbon atoms, of greater than 0.12, and wherein the HMW catalyst has a reactivity ratio, r1 of about 5 or less.

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