中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

31 records (took 0.017 seconds)

    Process for copolymerizing ethylene with vinylsilanes
    1.
    发明授权
    Process for copolymerizing ethylene with vinylsilanes 有权
    乙烯与乙烯基硅烷共聚的方法

    公开(公告)号：US06936671B2

    公开(公告)日：2005-08-30

    申请号：US10681657

    申请日：2003-10-08

    Applicant: Sameer D. Mehta ,  Mark K. Reinking

    Inventor： Sameer D. Mehta ,  Mark K. Reinking

    IPC: C08F30/08 ,  C08F210/00 ,  C08F210/02 ,  C08F230/08 ,  C08F130/08

    CPC classification number: C08F210/02 ,  C08F230/08 ,  C08F4/6367 ,  C08F2500/20

    Abstract: A process for copolymerizing ethylene with vinylsilanes is disclosed. The process uses a Ziegler-Natta catalyst and cocatalyst wherein the Ziegler-Natta catalyst is prepared from a Group 4-6 halogen-containing transition metal and a mixture of an organomagnesium compound and a silicon-containing compound. Silane-functionalized polyolefins produced using the process can be crosslinkable and can be used to bond polyolefins to polysiloxanes or other functionalized polymers.

    Abstract translation: 公开了一种使乙烯与乙烯基硅烷共聚的方法。 该方法使用齐格勒 - 纳塔催化剂和助催化剂，其中齐格勒 - 纳塔催化剂由含4-6族含卤素的过渡金属和有机镁化合物与含硅化合物的混合物制备。 使用该方法制备的硅烷官能化聚烯烃可以是可交联的，并且可以用于将聚烯烃与聚硅氧烷或其它官能化聚合物结合。

    Preparing multimodal polyethylene having controlled long chain branching distribution
    5.
    发明申请
    Preparing multimodal polyethylene having controlled long chain branching distribution 审中-公开
    制备具有受控长支链分布的多峰聚乙烯

    公开(公告)号：US20090048402A1

    公开(公告)日：2009-02-19

    申请号：US11894016

    申请日：2007-08-17

    Applicant: Michael W. Lynch ,  Mark K. Reinking

    Inventor： Michael W. Lynch ,  Mark K. Reinking

    IPC: C08L23/06

    CPC classification number: C08F10/02 ,  C08F110/02 ,  C08L23/06 ,  C08L23/0815 ,  C08L2314/06 ,  C08F4/6555 ,  C08F2/001 ,  C08L2666/06 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2500/09

    Abstract: A process to prepare a multimodal polyethylene with controlled LCB distribution is disclosed. In the first stage, ethylene is polymerized in the presence of a Ziegler catalyst that results in a homopolyethylene component having a higher LCB concentration. In the second stage, ethylene is copolymerized with a 1-olefin in the presence of the Ziegler catalyst and a lower concentration of hydrogen resulting in a copolymer component with a lower LCB concentration. The homopolyethylene component and the copolymer component are combined to form a novel multimodal polyethylene.

    Abstract translation: 公开了制备具有受控LCB分布的多峰聚乙烯的方法。 在第一阶段中，乙烯在齐格勒催化剂存在下聚合，导致具有较高LCB浓度的均聚乙烯组分。 在第二阶段中，乙烯在齐格勒催化剂存在下与1-烯烃共聚，较低浓度的氢气导致具有较低LCB浓度的共聚物组分。 将均聚乙烯组分和共聚物组分合并形成新的多峰聚乙烯。

    Propylene polymerization process with enhanced catalyst activity
    6.
    发明授权
    Propylene polymerization process with enhanced catalyst activity 失效
    丙烯聚合方法具有增强的催化剂活性

    公开(公告)号：US06630544B1

    公开(公告)日：2003-10-07

    申请号：US10125757

    申请日：2002-04-18

    Applicant: Douglas D. Klendworth ,  Mark K. Reinking ,  Edward D. Kist ,  Karen E. Meyer

    Inventor： Douglas D. Klendworth ,  Mark K. Reinking ,  Edward D. Kist ,  Karen E. Meyer

    IPC: C08F442

    CPC classification number: C08F10/06 ,  C08F110/06 ,  C08F2/00

    Abstract: A process for polymerizing propylene is disclosed. The process involves charging propylene and about 90 to 99% of an organoaluminum cocatalyst to a reactor and heating this mixture to at least about 50° C. This is followed by addition of a premix of 1 to 10% of the organoaluminum cocatalyst with a magnesium halide-supported Ziegler-Natta catalyst. The temperature of the reaction mixture is maintained to produce a propylene polymer. The process gives improved catalyst activity.

    Abstract translation: 公开了一种聚合丙烯的方法。 该方法包括将丙烯和约90至99％的有机铝助催化剂装入反应器中，并将该混合物加热至至少约50℃。随后加入1至10％的有机铝助催化剂与镁 卤化物载体的齐格勒 - 纳塔催化剂。 保持反应混合物的温度以产生丙烯聚合物。 该方法提供了改进的催化剂活性。

    Process for making ethylene homopolymers
    8.
    发明授权
    Process for making ethylene homopolymers 有权
    制备乙烯均聚物的方法

    公开(公告)号：US08202952B2

    公开(公告)日：2012-06-19

    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: C08F4/78 ,  C08F2/14 ,  C08F110/02

    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。

    Shear modification of polyolefin-clay nanocomposites
    10.
    发明授权
    Shear modification of polyolefin-clay nanocomposites 有权
    聚烯烃 - 粘土纳米复合材料的剪切改性

    公开(公告)号：US07183348B2

    公开(公告)日：2007-02-27

    申请号：US11034493

    申请日：2005-01-13

    Applicant: Mark K. Reinking ,  Karl P. Rufener

    Inventor： Mark K. Reinking ,  Karl P. Rufener

    IPC: C08K3/34 ,  C08K9/04

    CPC classification number: C08K3/346 ,  C08L23/02

    Abstract: A method for modifying polyolefin-clay nanocomposites is disclosed. The method comprises shearing a melt of solution-prepared nanocomposites at an effective shear rate. The modified nanocomposite shows significantly decreased complex melt viscosity, storage modulus, and loss modulus.

    Abstract translation: 公开了一种改性聚烯烃 - 粘土纳米复合材料的方法。 该方法包括以有效剪切速率剪切溶液制备的纳米复合材料的熔体。 改性纳米复合材料显示出显着降低的复合熔体粘度，储能模量和损耗模量。

Patent Agency Ranking