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    Guide wire for use with a catheter
    2.
    发明授权
    Guide wire for use with a catheter 有权
    导管用于导管

    公开(公告)号：US08764684B2

    公开(公告)日：2014-07-01

    申请号：US13958903

    申请日：2013-08-05

    申请人： Brivant Research & Development Limited

    发明人： Henry William Lupton

    IPC分类号： A61M25/00 ,  A61M5/178

    CPC分类号： A61M25/09 ,  A61M25/09041 ,  A61M2025/09083 ,  A61M2025/0915 ,  A61M2025/09175

    摘要： A guide wire (1) for use with a catheter comprises a core wire (3) terminating in a distal portion (18) of flat ribbon-like construction having respective opposite major surfaces (29,30). A spring (24) is brazed to a distal end (27) of the distal portion (18) and to the core wire (3) at a tapering portion (14). A reinforcing member (38) extends axially along the distal portion (18) from a proximal end (26) of the distal portion (18) to a location (40) for reinforcing the distal portion (18) for in turn increasing its torsional rigidity in order to minimise axial twisting of the distal portion (18). A guide portion (42) of the distal portion (18) between the location (40) and the distal end (27) is provided to be bent at a desired set curved configuration for offsetting a distal tip (9) of the guide wire (1) from a central axis (8) thereof, so that by rotating the guide wire (1) at its proximal end (5) the distal portion (18) is also rotated for aligning the distal tip (9) with a branched vessel into which it is desired to direct and urge the guide wire (1).

    摘要翻译： 与导管一起使用的导丝（1）包括终端于具有各自相对的主表面（29,30）的扁平带状结构的远端部分（18）中的芯线（3）。 弹簧（24）在锥形部分（14）处钎焊到远端部分（18）的远端（27）和芯线（3）。 加强构件（38）沿着远端部分（18）从远端部分（18）的近端（26）轴向延伸到用于加强远侧部分（18）的位置（40），从而增加其扭转刚度 以便最小化远侧部分（18）的轴向扭转。 设置在位置（40）和远端（27）之间的远端部分（18）的引导部分（42）以期望的设定弯曲构造弯曲，以抵消导丝的远侧末端（9） 1）从其中心轴线（8）移动，使得通过在其近端（5）处旋转导丝（1），远端部分（18）也旋转以将远端尖端（9）与分支血管对准 期望引导和推动导丝（1）。

    Crosslinkable blends of polyolefin elastomers and silane copolymers for increased flexibility cable insulation
    5.
    发明授权
    Crosslinkable blends of polyolefin elastomers and silane copolymers for increased flexibility cable insulation 有权
    聚烯烃弹性体和硅烷共聚物的可交联共混物用于增加电缆绝缘的柔性

    公开(公告)号：US08445786B2

    公开(公告)日：2013-05-21

    申请号：US12664703

    申请日：2008-06-20

    申请人： Stephen H. Cree ,  David P. Wright

    发明人： Stephen H. Cree ,  David P. Wright

    IPC分类号： H01B7/00

    CPC分类号： H01B3/441 ,  C08L23/0815 ,  C08L23/0892 ,  C08L23/14 ,  C08L43/04 ,  C08L2205/02 ,  C08L2312/08 ,  H01B3/28 ,  C08L2666/06

    摘要： Compositions having at least 60 weight percent, based on the total weight of polymers, have at least one silane crosslinkable polyolefin resin and up to about 40 weight percent, based on the total weight of polymers, of at least one polyolefin elastomer resin, wherein the polyolefin polymer elastomer resin has density of less than or equal to about 0.89 g/cm3 and a melt index, I2, of less than about 50 g/10 mm. and which has been prepared using at least one metallocene catalyst provide improved flexibility, especially low temperature flexibility, while maintaining suitable cure performance and strength compared to the silane crosslinkable polymer resin alone. This composition may be used in cables for low temperature service applications.

    摘要翻译： 具有至少60重量％的基于聚合物总重量的组合物具有至少一种硅烷可交联聚烯烃树脂和至多约40重量％（基于聚合物的总重量）至少一种聚烯烃弹性体树脂，其中 聚烯烃聚合物弹性体树脂的密度小于或等于约0.89g / cm 3，熔体指数I2小于约50g / 10mm。 并且使用至少一种金属茂催化剂制备，与单独的硅烷可交联聚合物树脂相比，提供了改善的柔性，特别是低温柔韧性，同时保持合适的固化性能和强度。 该组合物可用于低温服务应用的电缆。

    Low dielectric loss power cable sheaths comprising high pressure polyolefins free of silane functionality
    7.
    发明授权
    Low dielectric loss power cable sheaths comprising high pressure polyolefins free of silane functionality 有权
    低介电损耗电力电缆护套包括不含硅烷功能的高压聚烯烃

    公开(公告)号：US08329797B2

    公开(公告)日：2012-12-11

    申请号：US12668038

    申请日：2008-07-09

    申请人： Robert F. Eaton ,  Paul J. Caronia

    发明人： Robert F. Eaton ,  Paul J. Caronia

    IPC分类号： C08K5/05 ,  C08K5/06

    CPC分类号： C08L23/0846 ,  C08L23/06 ,  C08L71/02 ,  H01B3/302 ,  C08L2666/02 ,  C08L2666/06

    摘要： Power cables that comprise a sheath layer, e.g., an insulation layer, are produced from a mixture of a high pressure polyolefin free of silane functionality, e.g., high pressure low density polyethylene, and a polyether polyol of which at least 50 percent of its molecules comprise no more than a single hydroxyl functionality. Preferably, the power cable is a medium or high voltage power cable, and the polyolefin is crosslinked as the sheath layer is fabricated and/or subsequent to the fabrication of the sheath layer.

    摘要翻译： 包括护层（例如绝缘层）的电力电缆由不含硅烷官能团的高压聚烯烃（例如高压低密度聚乙烯）和聚醚多元醇的混合物制成，所述聚醚多元醇的至少50％的分子 包含不超过单个羟基官能团。 优选地，电力电缆是中压或高压电力电缆，并且当制造护套层和/或在制造护套层之后，聚烯烃被交联。

    Procatalyst composition with substitute 1,2-phenylene aromatic diester internal donor and method
    8.
    发明授权
    Procatalyst composition with substitute 1,2-phenylene aromatic diester internal donor and method 有权
    具有替代1,2-亚苯基芳族二酯内给体的助催化剂组合物及方法

    公开(公告)号：US08288585B2

    公开(公告)日：2012-10-16

    申请号：US12650834

    申请日：2009-12-31

    申请人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao

    发明人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao

    IPC分类号： C07C309/00

    CPC分类号： C08F4/6494 ,  C08F4/76 ,  C08F110/06 ,  C08F4/651 ,  C08F4/6465

    摘要： Disclosed are procatalyst compositions having an internal electron donor which include a substituted phenylene aromatic diester and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit high activity and produce propylene-based olefins with broad molecular weight distribution.

    摘要翻译： 公开了具有内电子给体的前催化剂组合物，其包括取代的亚苯基芳族二酯和任选的电子给体组分。 包含本发明的前催化剂组合物的齐格勒 - 纳塔催化剂组合物表现出高活性并产生具有宽分子量分布的丙烯基烯烃。