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    Modifying polyethylene made by Ziegler or single-site catalyst with free radical initiator
    21.
    发明授权
    Modifying polyethylene made by Ziegler or single-site catalyst with free radical initiator 失效
    用Ziegler或单位点催化剂改性自由基引发剂制成的聚乙烯

    公开(公告)号：US07399809B1

    公开(公告)日：2008-07-15

    申请号：US11652236

    申请日：2007-01-11

    Applicant: Andrew J. Scheie ,  Mark K. Reinking

    Inventor： Andrew J. Scheie ,  Mark K. Reinking

    IPC: C08C19/04 ,  C08F8/06

    CPC classification number: C08F8/06 ,  C08F10/02

    Abstract: A method of modifying a polyethylene is disclosed. In the method ethylene or a mixture of ethylene and a C3-C10 α-olefin is polymerized in an organic solvent with a Ziegler or single-site catalyst to form an initial polyethylene solution. The initial polyethylene solution is then reacted with a free radical initiator to produce a modified polyethylene. The modified polymer has an enhanced melt elasticity and increased long chain branching index, and is essentially free of gel.

    Abstract translation: 公开了改性聚乙烯的方法。 在该方法中，乙烯或乙烯和C 3 -C 10α-烯烃的混合物在有机溶剂中与齐格勒或单中心催化剂聚合以形成初始聚乙烯溶液。 然后将初始聚乙烯溶液与自由基引发剂反应以制备改性聚乙烯。 改性聚合物具有增强的熔体弹性和增加的长链支化指数，并且基本上不含凝胶。

    Process for narrowing short-chain branching distribution in two-step ethylene polymerizations and products
    22.
    发明授权
    Process for narrowing short-chain branching distribution in two-step ethylene polymerizations and products 有权
    缩短两步乙烯聚合和产物中短链支化分布的方法

    公开(公告)号：US07151145B1

    公开(公告)日：2006-12-19

    申请号：US11180853

    申请日：2005-07-13

    Applicant: Mark K. Reinking

    Inventor： Mark K. Reinking

    IPC: C08F4/42

    CPC classification number: C08F210/16 ,  C08F110/02 ,  C08F2/001 ,  C08F210/08 ,  C08F2500/10

    Abstract: An improved two-step polymerization process wherein ethylene homopolymer is produced in a first reactor and ethylene copolymer having narrowed short-chain branching distribution is prepared in a second reactor. Narrowed short-chain branching distribution of the copolymer is achieved by including specific silane modifiers in the second reactor.

    Abstract translation: 在第二反应器中制备改进的两步聚合方法，其中在第一反应器中制备乙烯均聚物并且在第二反应器中制备具有变窄的短链支化分布的乙烯共聚物。 通过在第二反应器中包含特定的硅烷改性剂来实现共聚物的窄链支化分布。

    Cocatalyst for vanadium/titanium containing polymerization catalyst
    25.
    发明授权
    Cocatalyst for vanadium/titanium containing polymerization catalyst 失效
    用于含钒/钛的聚合催化剂的助催化剂

    公开(公告)号：US5346872A

    公开(公告)日：1994-09-13

    申请号：US10737

    申请日：1993-01-29

    Applicant: Raghu Menon ,  Albert P. Masino ,  Mark K. Reinking

    Inventor： Raghu Menon ,  Albert P. Masino ,  Mark K. Reinking

    IPC: B01J31/02 ,  B01J31/12 ,  B01J31/14 ,  B01J31/16 ,  B01J31/22 ,  C08F110/02 ,  B01J31/00

    CPC classification number: B01J31/2226 ,  B01J31/0212 ,  B01J31/128 ,  B01J31/143 ,  B01J31/1616 ,  C08F110/02 ,  B01J2531/46 ,  B01J2531/56

    Abstract: The present invention relates to a novel catalyst component for ethylene polymerization comprising vanadium and titanium. Moreover, when the vanadium/titanium containing catalyst of the present invention is employed with an aluminum-containing cocatalyst enhanced activity as well as melt index is obtained.The present invention is directed to a novel halosilane cocatalyst component which, when used in conjunction with an aluminum containing cocatalyst, is effective in increasing the activity of a silica supported titanium/vanadium containing solid catalyst component in the polymerization of ethylene and/or .alpha.-olefins. In addition to the increased catalytic activity, the polymers produced by the present invention exhibit improved melt index values compared with melt index values typically obtained using prior art catalyst systems. Thus, the catalyst system of the instant invention represent an advancement in the art in view of the combination of increased activity, i.e., yield of polymer produced, and physical properties of the polyolefin product.In another aspect of the present invention, a process for polymerizing ethylene and/or .alpha.-olefins is disclosed. In this process at least one olefin is polymerized under olefin polymerization conditions utilizing the catalyst system of the present invention, which includes the solid catalyst component of the present invention, along with the first cocatalyst, an aluminum-containing compound, and the second cocatalyst, a halosilane.

    Abstract translation: 本发明涉及包含钒和钛的乙烯聚合新型催化剂组分。 此外，当使用本发明的含钒/钛的催化剂与含铝助催化剂增强活性以及熔体指数一起使用时。 本发明涉及一种新型卤代硅烷助催化剂组分，当与含铝助催化剂结合使用时，可有效地提高二氧化硅负载的含钛/钒的固体催化剂组分在乙烯和/或α-烯烃聚合中的活性， 烯烃。 除了增加的催化活性之外，与通常使用现有技术催化剂体系获得的熔体指数值相比，本发明生产的聚合物显示出改善的熔体指数值。 因此，本发明的催化剂体系代表了本领域的进步，考虑到增加的活性，即所生产的聚合物的产率和聚烯烃产品的物理性质的组合。 在本发明的另一方面，公开了一种聚合乙烯和/或α-烯烃的方法。 在该方法中，使用本发明的催化剂体系在烯烃聚合条件下聚合至少一种烯烃，其包括本发明的固体催化剂组分以及第一助催化剂，含铝化合物和第二助催化剂， 卤代硅烷。

    Process for making ethylene homopolymers
    26.
    发明申请
    Process for making ethylene homopolymers 有权
    制备乙烯均聚物的方法

    公开(公告)号：US20100129581A1

    公开(公告)日：2010-05-27

    申请号：US12313576

    申请日：2008-11-21

    Applicant: Michael W. Lynch ,  Mark K. Reinking

    Inventor： Michael W. Lynch ,  Mark K. Reinking

    IPC: B65D1/02 ,  C08F4/24 ,  C08F10/02 ,  C08F4/18 ,  C08F2/01

    CPC classification number: B65D1/0207 ,  C08F10/02 ,  C08F110/02 ,  Y10S526/903 ,  Y10T428/1397 ,  C08F4/24 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24

    Abstract: A process for making an ethylene homopolymer in the presence of an oxide-supported chromium catalyst is disclosed. A small amount of an α-olefin contacted with the catalyst before polymerizing ethylene or introduced into an ethylene homopolymerization unexpectedly boosts process productivity. When used at part per million levels, the α-olefin improves productivity while maintaining desirable polymer properties. The invention is particularly valuable for making HDPE resins useful for blow molding applications.

    Abstract translation: 公开了一种在氧化物负载的铬催化剂存在下制备乙烯均聚物的方法。 在聚合乙烯或引入乙烯均聚物之前，与催化剂接触的少量α-烯烃意外地提高了工艺生产率。 当以百万分之一的水平使用时，α-烯烃可以提高生产率，同时保持所需的聚合物性能。 本发明对于制备用于吹塑应用的HDPE树脂是特别有价值的。

    Supported olefin polymerization catalysts
    29.
    发明授权
    Supported olefin polymerization catalysts 失效
    负载型烯烃聚合催化剂

    公开(公告)号：US06310150B1

    公开(公告)日：2001-10-30

    申请号：US09879443

    申请日：2001-06-12

    Applicant: Karen E. Meyer ,  Mark K. Reinking

    Inventor： Karen E. Meyer ,  Mark K. Reinking

    IPC: C08F444

    CPC classification number: B01J31/2295 ,  B01J31/146 ,  B01J31/165 ,  B01J35/023 ,  C08F4/65916 ,  C08F4/6592 ,  C08F10/00 ,  C08F210/16 ,  C08F4/65908 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/24

    Abstract: Supported heterometallocene catalysts wherein the support is a particulate polymeric material are provided. The catalysts have a transition metal complex containing at least one anionic, polymerization stable heteroatomic ligand associated with the transition metal and a boron activator compound deposited on the support. Polymeric supports used for the heterometallocene catalysts of the invention are homopolymers of ethylene and copolymers of ethylene and C3-8 &agr;-olefins.

    Abstract translation: 提供负载型异金属茂催化剂，其中载体是颗粒聚合材料。 催化剂具有过渡金属络合物，其含有与过渡金属相关的至少一个阴离子，聚合稳定的杂原子配体和沉积在载体上的硼活化剂化合物。 用于本发明的异金属茂催化剂的聚合物载体是乙烯的均聚物和乙烯和C 3-8α-烯烃的共聚物。

    Cocatalyst for transition metal-containing .alpha.-olefin polymerization catalyst
    30.
    发明授权
    Cocatalyst for transition metal-containing .alpha.-olefin polymerization catalyst 失效
    含过渡金属的α-烯烃聚合催化剂的助催化剂

    公开(公告)号：US5344803A

    公开(公告)日：1994-09-06

    申请号：US11046

    申请日：1993-01-29

    Applicant: Raghu Menon ,  Albert P. Masino ,  Mark K. Reinking

    Inventor： Raghu Menon ,  Albert P. Masino ,  Mark K. Reinking

    IPC: B01J23/10 ,  B01J37/03 ,  B01J31/00

    CPC classification number: B01J37/033 ,  B01J23/10

    Abstract: The present invention is directed to a novel halosilane cocatalyst component which, when used in conjunction with an aluminum containing cocatalyst, is effective in increasing the activity of a supported magnesium/titanium containing catalyst in the polymerization of ethylene and .alpha.-olefins. In addition to the increased catalytic activity, the polymers produced by the present invention are characterized as having an unexpected enhancement in the polymer melt index. Thus, the catalyst system of the instant invention represents an advancement in the art in view of the combination of increased activity, i.e., yield of polymer produced, and physical properties of the polyolefin product.In another aspect of the present invention, a process for polymerizing .alpha.-olefins is disclosed. In this process at least one olefin is polymerized under olefin polymerization conditions utilizing the catalyst system of the present invention, which includes the solid catalyst component of the present invention, along with the first cocatalyst, an aluminum-containing compound, and the second cocatalyst, a halosilane compound.

    Abstract translation: 本发明涉及一种新型卤代硅烷助催化剂组分，当与含铝助催化剂结合使用时，可有效提高在乙烯和α-烯烃聚合中负载的含镁/钛的催化剂的活性。 除了增加的催化活性之外，本发明生产的聚合物的特征在于聚合物熔体指数具有意想不到的增强。 因此，鉴于增加的活性，即所生产的聚合物的产率和聚烯烃产品的物理性能的组合，本发明的催化剂体系代表了本领域的进步。 在本发明的另一方面，公开了聚合α-烯烃的方法。 在该方法中，使用本发明的催化剂体系在烯烃聚合条件下聚合至少一种烯烃，其包括本发明的固体催化剂组分以及第一助催化剂，含铝化合物和第二助催化剂， 卤代硅烷化合物。

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