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32 条记录 (耗时 0.042 秒)

    Polymers Having Broad Molecular Weight Distributions and Methods of Making the Same
    11.
    发明申请
    Polymers Having Broad Molecular Weight Distributions and Methods of Making the Same 有权
    具有广泛分子量分布的聚合物及其制备方法

    公开(公告)号：US20080051545A1

    公开(公告)日：2008-02-28

    申请号：US11929448

    申请日：2007-10-30

    申请人： Max McDaniel ,  Elizabeth Benham ,  Steven Secora ,  Michael Jensen ,  Kathy Collins

    发明人： Max McDaniel ,  Elizabeth Benham ,  Steven Secora ,  Michael Jensen ,  Kathy Collins

    IPC分类号： C08F10/14

    CPC分类号： C08F10/00 ,  C08F210/16 ,  C08F4/24 ,  C08F4/623 ,  C08F4/69 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/07 ,  C08F2500/13 ,  C08F2500/12

    摘要： Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Using the cocatalyst in conjunction with the catalyst increases several properties, such as the high load melt index (HLMI), the MW, and the MN, of the polymers produced by this polymerization method. Polymer compositions produced by such methods have various unique properties, including a PDI greater than about 30. Additional embodiments include articles of manufacture or end use articles formed from such polymer compositions.

    摘要翻译： 聚合至少一种烯烃的方法包括使烯烃与包含铬的催化剂和包含非过渡金属环戊二烯基（Cp）化合物的助催化剂接触。 聚合可以在氢的存在下进行。 与催化剂一起使用助催化剂增加了几种性质，例如所生产的聚合物的高负载熔体指数（HLMI），M W W N N N N N N N N 通过该聚合方法。 通过这种方法制备的聚合物组合物具有各种独特的性质，包括大于约30的PDI。另外的实施方案包括由这种聚合物组合物形成的制品或最终用途制品。

    Polymers having broad molecular weight distributions and methods of making the same
    12.
    发明申请
    Polymers having broad molecular weight distributions and methods of making the same 有权
    具有宽分子量分布的聚合物及其制备方法

    公开(公告)号：US20050239976A1

    公开(公告)日：2005-10-27

    申请号：US10829842

    申请日：2004-04-22

    申请人： Max McDaniel ,  Elizabeth Benham ,  Steven Secora ,  Michael Jensen ,  Kathy Collins

    发明人： Max McDaniel ,  Elizabeth Benham ,  Steven Secora ,  Michael Jensen ,  Kathy Collins

    IPC分类号： C08F2/38 ,  C08F10/00 ,  C08F210/16

    CPC分类号： C08F10/00 ,  C08F210/16 ,  C08F4/24 ,  C08F4/623 ,  C08F4/69 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/07 ,  C08F2500/13 ,  C08F2500/12

    摘要： Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Using the cocatalyst in conjunction with the catalyst increases several properties, such as the high load melt index (HLMI), the MW, and the MN, of the polymers produced by this polymerization method. Polymer compositions produced by such methods have various unique properties, including a PDI greater than about 30. Additional embodiments include articles of manufacture or end use articles formed from such polymer compositions.

    摘要翻译： 聚合至少一种烯烃的方法包括使烯烃与包含铬的催化剂和包含非过渡金属环戊二烯基（Cp）化合物的助催化剂接触。 聚合可以在氢的存在下进行。 与催化剂一起使用助催化剂增加了几种性质，例如所生产的聚合物的高负载熔体指数（HLMI），M W W N N N N N N N N 通过该聚合方法。 通过这种方法制备的聚合物组合物具有各种独特的性质，包括大于约30的PDI。另外的实施方案包括由这种聚合物组合物形成的制品或最终用途制品。

    Polymers having low levels of long chain branching and methods of making the same
    20.
    发明申请
    Polymers having low levels of long chain branching and methods of making the same 有权
    具有低水平长链支化的聚合物及其制备方法

    公开(公告)号：US20050239977A1

    公开(公告)日：2005-10-27

    申请号：US10829844

    申请日：2004-04-22

    申请人： Max McDaniel ,  Kathy Collins ,  Elizabeth Benham ,  Paul DesLauriers

    发明人： Max McDaniel ,  Kathy Collins ,  Elizabeth Benham ,  Paul DesLauriers

    IPC分类号： C08F4/06 ,  C08F10/02 ,  C08F110/02

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F4/69 ,  C08F2500/17 ,  C08F2500/04 ,  C08F2500/12 ,  C08F4/025

    摘要： Methods of producing a polymer include contacting at least one olefin with a catalyst prepared by contacting a support comprising alumina with a sulfating agent and with chromium. Polymer compositions produced in this manner may exhibit relatively low levels of long chain branching and relatively high molecular weights. In an embodiment, polymer compositions with a PDI in a range of from about 6 to about 15 have MW values greater than about 300,000 g/mol and Eo values less than about 1×106 Pa.s. The polymer compositions may further have Theological breadths greater than about 0.25 and relaxation times less than about 10 seconds.

    摘要翻译： 制备聚合物的方法包括使至少一种烯烃与通过使包含氧化铝的载体与硫酸化剂和铬接触而制备的催化剂接触。 以这种方式制备的聚合物组合物可以表现出较低水平的长链支化和相对较高的分子量。 在一个实施方案中，PDI在约6至约15范围内的聚合物组合物的M值大于约300,000g / mol且小于等于 约1×10 6 Pa。 聚合物组合物还可以具有大于约0.25的神学宽度和小于约10秒的弛豫时间。