MULTI-LAYER, MICROPOROUS POLYOLEFIN MEMBRANE, ITS PRODUCTION METHOD, BATTERY SEPARATOR, AND BATTERY
    1.
    发明申请
    MULTI-LAYER, MICROPOROUS POLYOLEFIN MEMBRANE, ITS PRODUCTION METHOD, BATTERY SEPARATOR, AND BATTERY 有权
    多层,微孔聚烯烃薄膜,其生产方法,电池分离器和电池

    公开(公告)号:US20120273114A1

    公开(公告)日:2012-11-01

    申请号:US13547850

    申请日:2012-07-12

    IPC分类号: B32B5/18

    摘要: A multi-layer, microporous polyolefin membrane comprising first microporous layers constituting at least both surface layers, and at least one second microporous layer disposed between both surface layers, the first microporous layer comprising a first polyethylene resin containing 8% or more by mass of ultra-high-molecular-weight polyethylene having a weight-average molecular weight of 1×106 or more, the second microporous layer comprising a second polyethylene resin containing 7% or less by mass of the ultra-high-molecular-weight polyethylene, and having a structure in which a pore diameter distribution curve obtained by mercury intrusion porosimetry has at least two peaks, and the total thickness of the first microporous layers being 15-60% per 100% of the total thickness of the first and second microporous layers.

    摘要翻译: 一种多层微孔聚烯烃膜,其包括构成至少两个表面层的第一微孔层和设置在两个表面层之间的至少一个第二微孔层,所述第一微孔层包含含有8质量%或更多的超微结构的第一聚乙烯树脂 重均分子量为1×10 6以上的高分子量聚乙烯,所述第二微孔层包含含有超过所述超高分子量聚乙烯7质量%以下的第二聚乙烯树脂,并且具有 其中通过水银侵入孔隙率法获得的孔径分布曲线具有至少两个峰,并且第一微孔层的总厚度相对于第一和第二微孔层的总厚度的100%为15-60%。

    Multi-layer, microporous polyolefin membrane, its production method, battery separator and battery
    5.
    发明授权
    Multi-layer, microporous polyolefin membrane, its production method, battery separator and battery 有权
    多层,微孔聚烯烃膜,其生产方法,电池分离器和电池

    公开(公告)号:US08709640B2

    公开(公告)日:2014-04-29

    申请号:US12675717

    申请日:2008-08-29

    IPC分类号: H01M2/16

    摘要: The invention relates to polyolefin membranes and membrane precursors comprising polyethylene and polypropylene. The polyolefin membrane can be a microporous polyolefin membrane comprising a first microporous layer and at least one second microporous layers where the first and second layers contain polypropylene and polyethylene, and the amount of polyethylene in the first layer is at least about 80 wt. % and the amount of polyethylene in the second layer is at least about 50 wt. %. The amount of polyethylene is higher in the first microporous layer than in the second microporous layer, and the total amount of the polyethylene in the first and second microporous layers is at least about 61 wt. %, based on the weight of the multi-layer, microporous polyolefin membrane.

    摘要翻译: 本发明涉及聚烯烃膜和包含聚乙烯和聚丙烯的膜前体。 聚烯烃膜可以是包含第一微孔层和至少一个第二微孔层的微孔聚烯烃膜,其中第一层和第二层包含聚丙烯和聚乙烯,并且第一层中的聚乙烯的量为至少约80wt。 %,第二层中的聚乙烯的量为至少约50wt。 %。 第一微孔层中的聚乙烯的量比第二微孔层高,第一和第二微孔层中的聚乙烯的总量为至少约61重量%。 %,基于多层微孔聚烯烃膜的重量。

    Extruder and process for preparing a mixture of polymer and diluent
    7.
    发明授权
    Extruder and process for preparing a mixture of polymer and diluent 有权
    挤出机和制备聚合物和稀释剂混合物的方法

    公开(公告)号:US08770824B2

    公开(公告)日:2014-07-08

    申请号:US12681695

    申请日:2008-10-20

    IPC分类号: B29C47/40

    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。

    Multi-layer, microporous polyolefin membrane, its production method, battery separator, and battery
    9.
    发明授权
    Multi-layer, microporous polyolefin membrane, its production method, battery separator, and battery 有权
    多层,微孔聚烯烃膜,其生产方法,电池隔膜和电池

    公开(公告)号:US08252450B2

    公开(公告)日:2012-08-28

    申请号:US12296242

    申请日:2007-04-09

    IPC分类号: H01M2/16

    摘要: A multi-layer, microporous polyolefin membrane comprising first microporous layers constituting at least both surface layers, and at least one second microporous layer disposed between both surface layers, the first microporous layer comprising a first polyethylene resin containing 8% or more by mass of ultra-high-molecular-weight polyethylene having a weight-average molecular weight of 1×106 or more, the second microporous layer comprising a second polyethylene resin containing 7% or less by mass of the ultra-high-molecular-weight polyethylene, and having a structure in which a pore diameter distribution curve obtained by mercury intrusion porosimetry has at least two peaks, and the total thickness of the first microporous layers being 15-60% per 100% of the total thickness of the first and second microporous layers.

    摘要翻译: 一种多层微孔聚烯烃膜,其包括构成至少两个表面层的第一微孔层和设置在两个表面层之间的至少一个第二微孔层,所述第一微孔层包含含有8质量%或更多的超微结构的第一聚乙烯树脂 重均分子量为1×10 6以上的高分子量聚乙烯,所述第二微孔层包含含有超过所述超高分子量聚乙烯7质量%以下的第二聚乙烯树脂,并且具有 其中通过水银侵入孔隙率法获得的孔径分布曲线具有至少两个峰,并且第一微孔层的总厚度相对于第一和第二微孔层的总厚度的100%为15-60%。