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1. 发明授权

US06984695B2 Heterogeneous/homogeneous copolymer 有权
标题翻译：非均相/均相共聚物
公开(公告)号：US06984695B2
公开(公告)日：2006-01-10
申请号：US10365070
申请日：2003-02-12
申请人： Stephen John Brown , Christopher John Brooke Dobbin , Clayton Trevor Elston , Norman Dorien Joseph Aubee , Gilbert Alexander Arnould , Sarah Marshall , Lawrence Thomas Kale , Mark Weber
发明人： Stephen John Brown , Christopher John Brooke Dobbin , Clayton Trevor Elston , Norman Dorien Joseph Aubee , Gilbert Alexander Arnould , Sarah Marshall , Lawrence Thomas Kale , Mark Weber
IPC分类号： C08F8/00 , C08L23/00 , C08L23/04 , B32B27/00 , B32B27/08
CPC分类号： C08L23/0815 , C08L23/06 , C08L2205/02 , C08L2205/03 , C08L2314/06 , Y10T428/1352 , Y10T428/31855 , Y10T428/31909 , C08L2666/06
摘要： Novel polyethylene copolymer compositions prepared with a homogeneous catalyst system are characterized by having a unique high molecular weight, low comonomer (high density) fraction. These heterogeneous/homogeneous compositions may be prepared using a solution polymerization process in which the polymerization reactor contains a gradient in temperature, catalyst concentration or monomer concentration. The heterogeneous/homogeneous compositions of this invention are easily processed into films having excellent tear strengths and low hexane extractables.
摘要翻译：用均相催化剂体系制备的新型聚乙烯共聚物组合物的特征在于具有独特的高分子量，低共聚单体（高密度）级分。这些不均匀/均匀的组合物可以使用溶液聚合方法制备，其中聚合反应器含有温度梯度，催化剂浓度或单体浓度。本发明的异质/均匀组合物易于加工成具有优异的撕裂强度和低的己烷可萃取物的膜。

2. 发明授权

US07201864B2 Rotomolding process with reduced cycle times 有权
标题翻译：滚动过程减少循环时间
公开(公告)号：US07201864B2
公开(公告)日：2007-04-10
申请号：US10886928
申请日：2004-07-08
申请人： Mark Weber , Philippa Hocking , Stephen John Brown , Christopher John Brooke Dobbin
发明人： Mark Weber , Philippa Hocking , Stephen John Brown , Christopher John Brooke Dobbin
IPC分类号： B29C41/04
CPC分类号： B29C41/003 , B29C41/04 , B29K2023/0625 , B29K2105/0088 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2666/06
摘要： The cycle time for a rotomolding process is improved through the use of a molding material comprising a blend of at least two polyethylenes having narrow molecular weight distributions and homogeneous comonomer distributions. Alternatively, the molding temperature may be reduced to conserve energy and reduce energy costs. The polyethylene blend also has a narrow molecular weight distribution of less than 3 and a density of from 0.930 to 0.950 g/cc. Rotomolded parts prepared from the blend composition have excellent impact resistance and are also resistant to warpage. A preferred process employs a blend composition which contains a blend component having a higher molecular weight and a lower density than another blend component—this blend may be used to prepare rotomolded parts with warpage resistance and improved environmental stress crack resistance (ESCR). A highly preferred process uses a blend composition which further contains a minor amount (from 0.5 to 10 weight %) of a third ethylene blend component which has a higher molecular weight and density—this highly preferred composition may be used to prepare rotomolded parts having warpage resistance, very good ESCR and comparatively high modulus (or stiffness).
摘要翻译：通过使用包含具有窄分子量分布和均相共聚单体分布的至少两种聚乙烯的共混物的模塑材料，改进了滚塑过程的循环时间。或者，可以降低成型温度以节省能量并降低能量成本。聚乙烯共混物还具有小于3的窄分子量分布和0.930至0.950g / cc的密度。由共混组合物制备的卷筒纸部件具有优异的抗冲击性，并且也耐翘曲。一种优选的方法采用共混组合物，它含有具有比另一共混组分更高的分子量和较低密度的共混组分 - 该混合物可用于制备具有抗翘曲性和改善的耐环境应力开裂性（ESCR）的滚塑部件。高度优选的方法使用进一步含有少量（0.5至10重量％）具有较高分子量和密度的第三乙烯共混物组分的共混组合物 - 该高度优选的组合物可用于制备具有翘曲的滚塑部件电阻，非常好的ESCR和较高的模量（或刚度）。

3. 发明授权

US06858677B2 Multimodal polyolefin pipe 有权
标题翻译：多模聚烯烃管
公开(公告)号：US06858677B2
公开(公告)日：2005-02-22
申请号：US10644430
申请日：2003-08-20
申请人： Alexei Kazakov , Stephen John Brown , Christopher John Brooke Dobbin , Stanley Allan Grabow
发明人： Alexei Kazakov , Stephen John Brown , Christopher John Brooke Dobbin , Stanley Allan Grabow
IPC分类号： C08L23/08 , C08L23/00 , C08L23/04 , F16L11/00
CPC分类号： C08L23/0815 , C08F4/65908 , C08F4/65912 , C08F4/6592 , C08F2420/04 , C08L2205/02 , C08L2314/06 , C08L2666/04
摘要： A solution polymerization process in a series or parallel of two or more reactors at different temperatures is used to prepare a multimodal polyolefin resin of narrow molecular weight distribution. This resin is used to manufacture melt extruded pipe that has an improved performance at elevated temperatures and an improved hydrostatic design.
摘要翻译：使用在不同温度下的两个或更多个反应器的串联或并联的溶液聚合方法来制备窄分子量分布的多峰聚烯烃树脂。该树脂用于制造在高温下具有改进的性能和改进的静液压设计的熔融挤出管。

4. 发明授权

US06642313B1 Multimodal polyolefin pipe 有权
标题翻译：多模聚烯烃管
公开(公告)号：US06642313B1
公开(公告)日：2003-11-04
申请号：US10088327
申请日：2002-03-13
申请人： Alexei Kazakov , Stephen John Brown , Christopher John Brooke Dobbin , Stanley Allan Grabow
发明人： Alexei Kazakov , Stephen John Brown , Christopher John Brooke Dobbin , Stanley Allan Grabow
IPC分类号： C08L2300
CPC分类号： C08L23/0815 , C08F4/65908 , C08F4/65912 , C08F4/6592 , C08F2420/04 , C08L2205/02 , C08L2314/06 , C08L2666/04
摘要： A solution polymerization process in a series or parallel of two or more reactors at different temperatures is used to prepare a multimodal polyolefin resin of narrow molecular weight distribution. This resin is used to manufacture melt extruded pipe that has an improved performance at elevated temperatures and an improved hydrostatic design.
摘要翻译：使用在不同温度下的两个或更多个反应器的串联或并联的溶液聚合方法来制备窄分子量分布的多峰聚烯烃树脂。该树脂用于制造在高温下具有改进的性能和改进的静液压设计的熔融挤出管。

5. 发明授权

US06777509B2 Solution polymerization process 有权
标题翻译：溶液聚合过程
公开(公告)号：US06777509B2
公开(公告)日：2004-08-17
申请号：US10124465
申请日：2002-04-17
申请人： Stephen John Brown , John William Swabey , Christopher John Brooke Dobbin
发明人： Stephen John Brown , John William Swabey , Christopher John Brooke Dobbin
IPC分类号： C08F452
CPC分类号： C08F10/00 , C08F4/65904 , C08F4/65912 , C08F110/02 , C08F210/16 , C08F2420/04 , C08F4/6592 , C08F2/06 , C08F2500/03 , C08F210/08 , C08F2500/04
摘要： A solution polymerization process using a phosphinimine catalyst and a boron activator is conducted at a temperature of about 170° C. or greater in the presence of trialkyl aluminum to produce polyethylene having a comparatively broad molecular weight distribution. The polyethylene product produced by the process of this invention is desirable because it can provide enhanced “processability” in comparison to polyethylene having a narrow molecular weight distribution. The process of this invention is advantageous in comparison to prior art processes for the preparation of “broad” polyethylene which use two polymerization reactors and/or more than one polymerization catalyst. The polymers produced by the process of this invention are potentially suitable for the preparation of plastic film. For example, a polyethylene according to this invention and having a density of about 0.93 grams per cubic centimeter and a melt index I2 (according to ASTM D 1238) of about 2 may be advantageously used to prepare cast film. In addition the present polyethylenes may be used for the manufacture of a wide variety of other goods including blow molded parts (such as tanks, drums and containers for gasoline or other liquids); extruded goods (such as profiles or hoses); and injection molded goods such as food containers.
摘要翻译：在三烷基铝存在下，在约170℃或更高的温度下进行使用次膦亚胺催化剂和硼活化剂的溶液聚合方法，以制备具有相对较宽分子量分布的聚乙烯。通过本发明的方法生产的聚乙烯产品是理想的，因为与具有窄分子量分布的聚乙烯相比，它可以提供增强的“加工性”。与用于制备使用两个聚合反应器和/或多于一种聚合催化剂的“宽”聚乙烯的现有技术方法相比，本发明的方法是有利的。通过本发明的方法生产的聚合物潜在地适用于制备塑料膜。例如，根据本发明的聚乙烯具有约0.93克/立方厘米的密度和约2的熔体指数I2（根据ASTM D 1238）可以有利地用于制备流延薄膜。此外，本发明的聚乙烯可用于制造各种各样的其他商品，包括吹塑成型部件（例如用于汽油或其他液体的罐，桶和容器）; 挤出物品（如型材或软管）; 以及食品容器等注射成型品。

6. 发明申请

US20150284303A1 CONTINUOUS ETHYLENE TETRAMERIZATION PROCESS 有权
标题翻译：连续乙烯四面体方法
公开(公告)号：US20150284303A1
公开(公告)日：2015-10-08
申请号：US14443838
申请日：2013-12-04
申请人： Peter ZORICAK , Stephen John BROWN , P. Scott CHISHOLM , NOVA CHEMICALS (INTERNATIONAL) S.A.
发明人： Peter Zoricak , Stephen John Brown , P. Scott Chisholm
IPC分类号： C07C2/34
CPC分类号： C07C2/34 , C07C2/36 , C07C2523/26 , C07C2531/14 , C07C2531/22 , C07C2531/24 , Y02P20/52 , C07C11/02
摘要： A continuous flow process for the oligomerization of ethylene using a chromium catalyst having a phosphorus-nitrogen-phosphorus (“P—N—P”) ligand provides high selectivity to the desired tetramer (1-octene) with reduced production of coproduct C10+ oligomers. Prior art processes that maximize catalyst activity have provided comparatively poor product selectivity. In particular, the production of larger amounts of C10+ oligomers have been observed under conditions that maximize activity. The present process resolves this problem through the use of a combination of low catalyst concentration and by limiting the octene concentration in the reactor.
摘要翻译：使用具有磷 - 氮 - 磷（“P-N-P”）配体的铬催化剂使乙烯低聚的连续流动方法对所需的四聚体（1-辛烯）提供了高选择性，同时产生了副产物C10 +低聚物。使催化剂活性最大化的现有技术方法提供了较差的产物选择性。特别地，在活性最大化的条件下观察到产生较大量的C10 +低聚物。本方法通过使用低催化剂浓度和限制反应器中辛烯浓度的组合来解决这个问题。

7. 发明申请

US20110144289A1 Multi reactor process 有权
标题翻译：多反应堆工艺
公开(公告)号：US20110144289A1
公开(公告)日：2011-06-16
申请号：US12928197
申请日：2010-12-06
申请人： Lauwrence Martin Jozef Van Asseldonk , Stephen John Brown
发明人： Lauwrence Martin Jozef Van Asseldonk , Stephen John Brown
IPC分类号： C08F2/01
CPC分类号： C08F210/16 , C08F2/06 , C08F2/001 , C08F210/14 , C08F2500/12
摘要： This invention relates to the polymerization of ethylene polymers using a continuously stirred tank reactor (CSTR) that is connected in series to a tubular reactor. The tubular reactor receives a polymer solution from the CSTR. Further polymerization in the tubular reactor improves production efficiencies, particularly with respect to lowering the amount of energy required to recover the polymer and residual comonomer from the solution. The use of tempered i.e. (heated) ethylene in the tubular reactor has been discovered to mitigate gel problems and lower/reduce levels of hexane extractables.
摘要翻译：本发明涉及使用与管式反应器串联连续搅拌的罐式反应器（CSTR）聚合乙烯聚合物。管式反应器从CSTR接收聚合物溶液。管式反应器中的进一步聚合提高了生产效率，特别是在降低从溶液中回收聚合物和残余共聚单体所需的能量的量方面。已经发现在管式反应器中使用回火（即加热的）乙烯以减轻凝胶问题并降低/降低己烷可萃取物的含量。

8. 发明授权

US06649558B2 Bis-phosphinimine catalyst 有权
标题翻译：双膦亚胺催化剂
公开(公告)号：US06649558B2
公开(公告)日：2003-11-18
申请号：US09753387
申请日：2001-01-03
申请人： Stephen John Brown , Xiaoliang Gao , Daryll G. Harrison , Ian McKay , Linda Koch , Qinyan Wang , Wei Xu , Rupert Edward von Haken Spence , Douglas W. Stephan
发明人： Stephen John Brown , Xiaoliang Gao , Daryll G. Harrison , Ian McKay , Linda Koch , Qinyan Wang , Wei Xu , Rupert Edward von Haken Spence , Douglas W. Stephan
IPC分类号： B01J3100
CPC分类号： C08F10/00 , C07F7/00 , C07F7/003 , C07F7/28 , C07F9/5355 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F110/02 , Y10S526/901 , C08F4/659 , C08F4/64 , C08F2500/12 , C08F2500/03
摘要： Organometallic complexes having two phosphinimine ligands and at least one activatable ligand are catalyst components for olefin polymerization. Preferred polymerization systems are prepared by combining the organometallic complexes with an ionic activator and/or an alumoxane. Preferred catalyst components contain titanium, zirconium, or hafnium and are activated with an ionic activator to form catalysts for ethylene polymerization.
摘要翻译：具有两个膦亚胺配体和至少一个可活化配体的有机金属络合物是用于烯烃聚合的催化剂组分。通过将有机金属络合物与离子活化剂和/或铝氧烷组合来制备优选的聚合体系。优选的催化剂组分含有钛，锆或铪，并用离子活化剂活化以形成用于乙烯聚合的催化剂。

9. 发明授权

US06180730B2 Catalyst deactivation 失效
标题翻译：催化剂失活
公开(公告)号：US06180730B2
公开(公告)日：2001-01-30
申请号：US09210469
申请日：1998-12-12
申请人： Fazle Sibtain , Antonio Pietro Nicola , Stephen John Brown , Linda Jean Santry
发明人： Fazle Sibtain , Antonio Pietro Nicola , Stephen John Brown , Linda Jean Santry
IPC分类号： C08F238
CPC分类号： C08F6/02 , C08L23/04
摘要： A particulate deactivator is used to pacify halogen-containing catalyst residues from a medium pressure solution polymerization process. The deactivator is added post-reactor preferably in the form of a suspension. The particulate deactivator may also be used in conjunction with a secondary, soluble deactivator.
摘要翻译：使用颗粒减活剂从中压溶液聚合过程中调和含卤素的催化剂残余物。减活剂优选以悬浮液的形式加入后反应器中。颗粒减活剂也可以与二级可溶性钝化剂结合使用。

10. 发明授权

US6063879A High temperature solution polymerization process with phosphinimine cyclopentadienyl metal (GRP IV) complex 失效
标题翻译：与膦酰亚胺环戊二烯基金属（GRP IV）复合物的高温溶液聚合方法
公开(公告)号：US6063879A
公开(公告)日：2000-05-16
申请号：US960489
申请日：1997-10-29
申请人： Douglas W. Stephan , Jeff C. Stewart , Stephen John Brown , John William Swabey , Qinyan Wang
发明人： Douglas W. Stephan , Jeff C. Stewart , Stephen John Brown , John William Swabey , Qinyan Wang
IPC分类号： C07F17/00 , C08F2/00 , C08F2/04 , C08F2/06 , C08F4/64 , C08F4/642 , C08F4/643 , C08F4/645 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F10/02 , C08F110/02
CPC分类号： C08F10/02 , C08F110/02 , C08F4/65912
摘要： This invention is a solution process for the preparation of high molecular weight ethylene copolymers comprising contacting olefin monomers, with a catalyst system at a polymerization temperature at or above about 80.degree. C. with a catalyst system comprising an unbridged Group 4 metal compound having a monocyclopentadienyl ligand, a phosphinimine ligand and at least one uninegative, activation reactive ligand. The process can be practiced at a reaction temperature of at least 80.degree. C. to obtain high number average molecular weight polymer.
摘要翻译：本发明是用于制备高分子量乙烯共聚物的溶液方法，其包括使烯烃单体与聚合温度为或等于约80℃的催化剂体系与包含具有单环戊二烯基的未桥连的第四族金属化合物配位体，膦亚胺配体和至少一个非负号活化反应性配体。该方法可以在至少80℃的反应温度下进行，以获得高数均分子量的聚合物。

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