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    Extruder Having Dual Mixing Stages And Process For Preparing A Mixture Of Polymer And Diluent
    22.
    发明申请
    Extruder Having Dual Mixing Stages And Process For Preparing A Mixture Of Polymer And Diluent 审中-公开
    具有双重混合阶段的挤出机和制备聚合物和稀释剂混合物的方法

    公开(公告)号：US20110133355A1

    公开(公告)日：2011-06-09

    申请号：US12681674

    申请日：2008-10-20

    申请人： Kotaro Takita ,  Norimitsu Kaimai ,  Sadakatsu Suzuki

    发明人： Kotaro Takita ,  Norimitsu Kaimai ,  Sadakatsu Suzuki

    IPC分类号： C08J9/26 ,  B29B7/80

    CPC分类号： B29B7/483 ,  B29C48/0012 ,  B29C48/0018 ,  B29C48/08 ,  B29C48/21 ,  B29C48/2564 ,  B29C48/297 ,  B29C48/395 ,  B29C48/402 ,  B29C48/505 ,  B29C48/55 ,  B29C48/57 ,  B29C48/767 ,  B29K2105/04 ,  B29K2105/26 ,  B29K2995/005 ,  B29L2007/008 ,  B29L2031/3468

    摘要： An extruder for preparing a polymer-diluent mixture. The extruder includes an elongated housing having an inlet end, an outlet end and a bore disposed within the housing, an elongated extruder shaft having an axis of rotation, the elongated extruder shaft disposed within the bore and drivable in at least one direction of rotation, a plurality of extruder screw segments positioned along the elongated extruder shaft in a fixed angular relationship therewith, the plurality of extruder screw segments selected to form multiple extruder stages, the multiple extruder stages comprising an inlet stage, a dispersion stage, and at least one mixing stage, the plurality of extruder screw segments forming the at least one mixing stage comprising a reverse mixing screw segment having a helical flight that traverses and forms an outer periphery thereof, the helical flight having a plurality of notches positioned therealong, a material inlet adjacent the inlet end of the elongated barrel and a first fluid inlet located within the dispersion stage for introducing a diluent. A process for extruding a polymer-diluent mixture is also provided.

    摘要翻译： 用于制备聚合物 - 稀释剂混合物的挤出机。 挤出机包括具有入口端，出口端和设置在壳体内的孔的细长壳体，具有旋转轴线的细长挤出机轴，细长挤出机轴设置在孔内并可在至少一个旋转方向上驱动， 多个挤出机螺杆段，其沿着细长的挤出机轴以固定的角度关系定位，多个挤出机螺杆段被选择以形成多个挤出机阶段，多个挤出机阶段包括入口阶段，分散步骤和至少一个混合 形成所述至少一个混合阶段的所述多个挤出机螺杆段包括具有穿过并形成其外周的螺旋形飞行的反向混合螺杆段，所述螺旋形飞行具有多个位于其上的凹口， 细长筒的入口端和位于用于int的分散阶段内的第一流体入口 制造稀释剂 还提供了挤出聚合物 - 稀释剂混合物的方法。

    Polyolefin microporous film and method for preparing the same
    27.
    发明授权
    Polyolefin microporous film and method for preparing the same 有权
    聚烯烃微孔膜及其制备方法

    公开(公告)号：US06245272B1

    公开(公告)日：2001-06-12

    申请号：US09673456

    申请日：2000-12-01

    申请人： Kotaro Takita ,  Hidehiko Funaoka ,  Norimitsu Kaimai ,  Shigeaki Kobayashi ,  Koichi Kono

    发明人： Kotaro Takita ,  Hidehiko Funaoka ,  Norimitsu Kaimai ,  Shigeaki Kobayashi ,  Koichi Kono

    IPC分类号： D06H1300

    CPC分类号： H01M2/1653 ,  B01D67/0027 ,  B01D67/0086 ,  B01D69/02 ,  B01D71/26 ,  B01D2323/08 ,  B01D2325/02 ,  B01D2325/20 ,  B01D2325/34

    摘要： It is an object of the present invention to provide a microporous polyolefin membrane, high in elongation and porosity, low in shrinkage, and capable of improving battery characteristics, safety and productivity, when used for battery separators. The microporous polyolefin membrane of the present invention comprises (A) an ultra-high-molecular-weight polyolefin having a weight-average molecular weight of 5×105 or more, or (B) a composition containing an ultra-high-molecular-weight polyolefin having a weight-average molecular weight of 5×105 or more, and having a porosity of 45 to 95%, elongation at break of 300% or more, bubble point exceeding 980 KPa and thermal shrinkage in the TD direction of 3% or less. The present invention also provides a method for producing the above microporous polyolefin membrane.

    摘要翻译： 本发明的目的是提供一种当用于电池隔板时，伸长率和孔隙率高，收缩率低，能够提高电池特性，安全性和生产率的微孔聚烯烃膜。 本发明的微孔聚烯烃膜包含（A）重均分子量为5×10 5以上的超高分子量聚烯烃，或（B）含有超高分子量聚烯烃的组合物，其具有 重均分子量为5×10 5以上，孔隙率为45〜95％，断裂伸长率为300％以上，起泡点超过980KPa，TD方向的热收缩率为3％以下。 本发明还提供了一种制备上述微孔聚烯烃膜的方法。