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    Extruder And Process For Preparing A Mixture Of Polymer And Diluent
    4.
    发明申请
    Extruder And Process For Preparing A Mixture Of Polymer And Diluent 审中-公开
    用于制备聚合物和稀释剂混合物的挤出机和方法

    公开(公告)号：US20110127687A1

    公开(公告)日：2011-06-02

    申请号：US12681684

    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： B29C47/50

    CPC分类号： B29C48/505 ,  B29B7/482 ,  B29B7/483 ,  B29B7/488 ,  B29B7/489 ,  B29B7/60 ,  B29C48/08 ,  B29C48/2564 ,  B29C48/395 ,  B29C48/402

    摘要： The invention generally relates to an extruder for preparing a mixture of polymer and diluent. The extruder includes multiple extruder stages, the multiple extruder stages comprising an inlet stage, a dispersion stage, and 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 process for extruding the polymer-diluent mixture is also provided.

    摘要翻译： 本发明一般涉及一种用于制备聚合物和稀释剂混合物的挤出机。 挤出机包括多个挤出机阶段，多个挤出机阶段包括入口阶段，分散阶段和至少一个混合阶段，该混合阶段包括具有横向并形成其外周的螺旋形飞行的反向混合螺杆段，螺旋飞行具有 多个位于其上的凹口。 还提供了挤出聚合物 - 稀释剂混合物的方法。

    Method of producing microporous polyolefin membrane
    7.
    发明授权
    Method of producing microporous polyolefin membrane 失效
    生产微孔聚烯烃膜的方法

    公开(公告)号：US5786396A

    公开(公告)日：1998-07-28

    申请号：US899778

    申请日：1997-07-24

    申请人： Kotaro Takita ,  Koichi Kono ,  Norimitsu Kaimai

    发明人： Kotaro Takita ,  Koichi Kono ,  Norimitsu Kaimai

    IPC分类号： B01D67/00 ,  B01D71/26 ,  C08J9/28

    CPC分类号： C08J9/28 ,  B01D67/0009 ,  B01D69/02 ,  B01D71/26 ,  B01D2323/12 ,  B01D2325/02 ,  B01D2325/20 ,  C08J2323/02

    摘要： A method of producing a microporous polyolefin membrane having a relatively large pore size and a high permeability, the membrane being suitable for use in water treatment, microfiltration, etc. The method comprises dissolving a polyolefin composition in a solvent to prepare a solution, extruding the solution through a die lip into a form of gel-like sheet, rapidly cooling the gel-like sheet, removing a residual solvent in the cooled sheet by a washing solvent, and drying the resultant sheet to remove the washing solvent. The polyolefin composition is a mixture of (A) an ultra high molecular weight polyolefin having a weight average molecular weight of 5.times.10.sup.5 or more and (B) a polyolefin having a weight average molecular weight less than 5.times.10.sup.5, and a weight ratio of (B)/(A) is 0.2 to 20.

    摘要翻译： 一种生产具有较大孔径和高渗透性的微孔聚烯烃膜的方法，该膜适用于水处理，微滤等。该方法包括将聚烯烃组合物溶解在溶剂中以制备溶液，挤出 溶液通过模唇形成凝胶状片，迅速冷却凝胶状片，通过洗涤溶剂除去冷却片中的残留溶剂，干燥得到的片以除去洗涤溶剂。 聚烯烃组合物是（A）重均分子量为5×10 5以上的超高分子量聚烯烃和（B）重均分子量小于5×10 5的聚烯烃和（B）的重量比的混合物， /（A）为0.2〜20。

    Extruder And Process For Preparing A Mixture Of Polymer And Diluent
    8.
    发明申请
    Extruder And Process For Preparing A Mixture Of Polymer And Diluent 有权
    用于制备聚合物和稀释剂混合物的挤出机和方法

    公开(公告)号：US20110089602A1

    公开(公告)日：2011-04-21

    申请号：US12681695

    申请日：2008-10-20

    申请人： Tetsuro Nogata ,  Soichiro Yamaguchi ,  Norimitsu Kaimai ,  Kotaro Takita ,  Takita Junko

    发明人： Tetsuro Nogata ,  Soichiro Yamaguchi ,  Norimitsu Kaimai ,  Kotaro Takita ,  Takita Junko

    IPC分类号： B29C47/00 ,  B29C47/40

    CPC分类号： B29C47/0825 ,  B29B7/482 ,  B29B7/60 ,  B29C47/0021 ,  B29C47/38 ,  B29C47/402 ,  B29C47/60

    摘要： The invention relates to a twin screw extruder for preparing a polymeric solution. The extruder includes an elongated housing having an inlet end, an outlet end, an extruder shaft length L and a pair of interconnecting bores disposed within the housing, a pair of elongated extruder shafts, each having an axis of rotation, the pair of elongated extruder shafts disposed within the pair of interconnecting bores and drivable in at least one direction of rotation, a plurality of extruder screw segments positioned along the pair of elongated extruder shafts in a fixed angular relationship therewith, the plurality of extruder screw segments selected to form multiple extruder stages. The invention also relates to a process for extruding a mixture of polymer and diluent.

    摘要翻译： 本发明涉及一种用于制备聚合物溶液的双螺杆挤出机。 挤出机包括细长壳体，其具有入口端，出口端，挤出机轴长度L和布置在壳体内的一对互连孔，每对具有旋转轴线的一对细长挤出机轴，该对细长挤出机 设置在所述一对互连孔内并且可沿至少一个旋转方向驱动的轴;多个挤出机螺杆段，沿着所述一对细长挤出机轴以固定的角度关系定位，所述多个挤出机螺杆段被选择以形成多个挤出机 阶段 本发明还涉及挤出聚合物和稀释剂的混合物的方法。

    Microporous polyolefin battery separator
    10.
    发明授权
    Microporous polyolefin battery separator 失效
    微孔聚烯烃电池隔膜

    公开(公告)号：US5922492A

    公开(公告)日：1999-07-13

    申请号：US864079

    申请日：1997-05-28

    申请人： Kotaro Takita ,  Koichi Kono ,  Norimitsu Kaimai ,  Soichiro Yamaguchi

    发明人： Kotaro Takita ,  Koichi Kono ,  Norimitsu Kaimai ,  Soichiro Yamaguchi

    IPC分类号： B32B5/24 ,  D04H13/00 ,  H01M2/16

    CPC分类号： H01M2/162 ,  B32B5/24 ,  H01M2/1653

    摘要： A microporous polyolefin composite membrane, preferably for use as a battery separator, comprising a microporous polyolefin membrane and a polyolefin nonwoven fabric laminated on at least one surface of the microporous polyolefin membrane. The composite membrane has a thickness of 25 to 200 .mu.m, a porosity of 30 to 70%, an air permeability of 100 to 2000 sec/100 cc and a surface opening area ratio of 50 to 90% on at least one outer surface thereof. The microporous polyolefin membrane comprises a matrix polyolefin component which is a polyolefin having a weight average molecular weight of 5.times.10.sup.5 or more or a polyolefin mixture containing the polyolefin having a weight average molecular weight of 5.times.10.sup.5 or more, and has a porosity of 30 to 95%, an air permeability of 100 to 2000 sec/100 cc, an average open pore diameter of 0.001 to 1 .mu.m and a tensile strength at break of 500 kg/cm.sup.2 or more. The microporous polyolefin membrane may further comprise a shutdown polymer component to shut down the pores, thereby making the composite membrane impermeable. The polyolefin nonwoven fabric comprises fine fibers and has an air permeability of 0.1 to 100 sec/100 cc and a basis weight of 5 to 50 g/m.sup.2. The polyolefin nonwoven fabric prevents the composite membrane from melting down at a low temperature thereby preventing the short-circuit between the electrodes.

    摘要翻译： 一种微孔聚烯烃复合膜，优选用作电池隔板，其包含微孔聚烯烃膜和聚烯烃无纺布，该聚烯烃无纺布层叠在微孔聚烯烃膜的至少一个表面上。 复合膜的至少一个外表面的厚度为25〜200μm，孔隙率为30〜70％，透气度为100〜2000秒/ 100cc，表面开口面积率为50〜90％ 。 微孔聚烯烃膜包括基重聚烯烃组分，其是重均分子量为5×10 5以上的聚烯烃或含有重均分子量为5×10 5以上的聚烯烃的聚烯烃混合物，其孔隙率为30〜95％ 透气度为100〜2000秒/ 100cc，平均开孔直径为0.001〜1μm，断裂强度为500kg / cm 2以上。 微孔聚烯烃膜还可以包括关闭聚合物组分以关闭孔，从而使复合膜不可渗透。 聚烯烃无纺布包括细纤维，透气度为0.1〜100秒/ 100cc，单位面积重量为5〜50g / m 2。 聚烯烃无纺布防止复合膜在低温下熔化，从而防止电极之间的短路。