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    BIAXIALLY STRETCHED MICROPOROUS FILM
    2.
    发明申请
    BIAXIALLY STRETCHED MICROPOROUS FILM 有权
    双向拉伸微孔膜

    公开(公告)号：US20150280194A1

    公开(公告)日：2015-10-01

    申请号：US14432301

    申请日：2013-10-03

    申请人： TORAY BATTERY SEPARATOR FILM CO., LTD.

    发明人： Hideto Mitsuoka ,  Kazuhiro Yamada ,  Shintaro Kikuchi ,  Toshiya Saito

    IPC分类号： H01M2/16

    CPC分类号： H01M2/1653 ,  C08J5/18 ,  C08J2323/06 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54

    摘要： A biaxially stretched microporous film includes band-like polyethylene material having a film width of not less than 300 mm wherein distribution of physical properties in the film width direction and the thickness variation is less than 1.00 μm and air permeability variation is not greater than 50 seconds/100 mL. The polyethylene microporous film has excellent planarity and uniformity of physical properties required when used in a large-area configuration as a separator film of a lithium ion battery for automobiles or consumer electronics.

    摘要翻译： 双轴拉伸微孔膜包括膜宽度不小于300mm的带状聚乙烯材料，其中膜宽度方向上的物理性质和厚度变化分布小于1.00μm，透气度变化不大于50秒 / 100 mL。 当在大面积配置中用作汽车或消费电子用锂离子电池的隔离膜时，聚乙烯微孔膜具有优异的平面性和物理性质的均匀性。

    MULTILAYERED MICROPOROUS POLYOLEFIN FILM
    6.
    发明申请
    MULTILAYERED MICROPOROUS POLYOLEFIN FILM 有权
    多层微波多孔薄膜

    公开(公告)号：US20150037653A1

    公开(公告)日：2015-02-05

    申请号：US14384014

    申请日：2013-03-18

    申请人： Toray Battery Separator Film Co., Ltd.

    发明人： Toshiya Saito ,  Kazuhiro Yamada ,  Shintaro Kikuchi

    IPC分类号： H01M2/16

    CPC分类号： H01M2/1686 ,  B01D67/002 ,  B01D67/0027 ,  B01D69/12 ,  B01D71/26 ,  B32B27/08 ,  B32B27/32 ,  B32B2307/20 ,  B32B2307/581 ,  B32B2307/724 ,  B32B2307/746 ,  B32B2457/10 ,  H01M2/145 ,  H01M2/1653 ,  H01M10/0525

    摘要： A polyolefin multilayer microporous membrane includes at least first microporous layers which form both surface layers of the membrane and at least a second microporous layer disposed between the both surface layers, wherein static friction coefficient of one of the surface layers of the polyolefin multilayer microporous membrane against another surface layer in a longitudinal direction (MD) is 1.1 or less, and wherein pore density calculated from an average pore radius measured by mercury porosimetry method and porosity, according to Formula (1) is 4 or more: Pore density=(P/A3)×104  (1) wherein A represents the average pore radius (nm) measured by mercury porosimetry method and P represents the porosity (%).

    摘要翻译： 聚烯烃多孔微孔膜包括形成膜的两个表面层的至少第一微孔层和设置在两个表面层之间的至少第二微孔层，其中聚烯烃多层微孔膜的一个表面层的静摩擦系数抵抗 根据式（1），通过水平孔隙率法测定的平均孔半径计算的孔密度为4以上：孔密度=（P / A3）×104（1）其中A表示通过水银孔隙法测定的平均孔半径（nm），P表示孔隙率（％）。

    METHODS OF MAKING MICROPOROUS POLYMERIC MEMBRANES AND THE USE OF SUCH MEMBRANES AS BATTERY SEPARATOR FILM
    7.
    发明申请
    METHODS OF MAKING MICROPOROUS POLYMERIC MEMBRANES AND THE USE OF SUCH MEMBRANES AS BATTERY SEPARATOR FILM 审中-公开
    制备微孔聚合物膜的方法和作为电池分离膜的这种膜的使用

    公开(公告)号：US20140315067A1

    公开(公告)日：2014-10-23

    申请号：US14275049

    申请日：2014-05-12

    申请人： Toray Battery Separator Film Co., Ltd.

    发明人： Kazuhiro Yamada

    IPC分类号： H01M2/16 ,  B29C47/06 ,  H01M2/14

    CPC分类号： H01M2/145 ,  B01D67/0009 ,  B01D69/02 ,  B01D71/26 ,  B01D2325/22 ,  B01D2325/26 ,  B29C48/21 ,  H01G9/02 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/052 ,  Y10T428/2495 ,  Y10T428/31913

    摘要： A method of producing a microporous membrane includes combining at least a first polyethylene and a first diluent; combining at least a second polyethylene and a second diluent; combining at least a third polyethylene and a third diluent; forming from the combined polyethylenes and diluents a multi-layer extrudate having a first layer containing the first polyethylene, a second layer containing the second polyethylene, and a third layer located between the first and second layers containing the third polyethylene, wherein the extrudate contains polyethylene having a terminal unsaturation ≧0.20 per 10,000 carbon atoms in an amount of 4.0 wt. % to 35.0 wt. %; and removing at least a portion of the first, second, and third diluents from the multi-layer extrudate to produce the membrane.

    摘要翻译： 微孔膜的制造方法包括：将至少第一聚乙烯和第一稀释剂组合; 组合至少第二聚乙烯和第二稀释剂; 组合至少第三聚乙烯和第三稀释剂; 从组合的聚乙烯和稀释剂形成具有含有第一聚乙烯的第一层，含有第二聚乙烯的第二层和位于包含第三聚乙烯的第一和第二层之间的第三层的多层挤出物，其中挤出物含有聚乙烯 具有4.0重量％的每10,000个碳原子的末端不饱和度≥0.20。 ％〜35.0重量％ ％; 以及从所述多层挤出物中除去所述第一，第二和第三稀释剂的至少一部分以产生所述膜。