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    Microporous Polyolefin Multilayer Film Possessing Good Mechanical Properties and Thermal Stability
    12.
    发明申请
    Microporous Polyolefin Multilayer Film Possessing Good Mechanical Properties and Thermal Stability 审中-公开
    微孔聚烯烃多层膜具有良好的机械性能和热稳定性

    公开(公告)号：US20120070644A1

    公开(公告)日：2012-03-22

    申请号：US13263161

    申请日：2010-04-05

    申请人： Gwigwon Kang ,  Youngkeun Lee ,  Jang-weon Rhee ,  Inhwa Jung

    发明人： Gwigwon Kang ,  Youngkeun Lee ,  Jang-weon Rhee ,  Inhwa Jung

    IPC分类号： B32B3/26

    CPC分类号： B01D71/26 ,  B01D69/02 ,  B01D69/12 ,  B01D69/148 ,  B01D2325/22 ,  B01D2325/32 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/1686 ,  Y10T428/249978 ,  Y10T428/249979

    摘要： Provided is a microporous polyolefin multilayer film which may be used as a separator for a battery, and a method for preparing the same. At least one layer of the microporous polyolefin multilayer film contains 90˜100 wt % of polyethylene having a melting temperature of 130˜140° C. and at least the other layer has 20 wt % or more of a heat resistant resin and 80 wt % or less of a filler selected from the group consisting of an organic filler, an inorganic filler and a mixture thereof. The heat resistant resin is preferably a semi crystalline polymer or an amorphous polymer. Preferably, the semi crystalline polymer has a degree of crystallinity of 10-45% or a heat of fusion for melting of 20˜90 J/g and has a melting temperature of 145˜250° C. and a glass transition temperature of −100˜90° C. Also, preferably, the amorphous polymer has no crystal and has a glass transition temperature of 90˜120° C.

    摘要翻译： 提供了可用作电池隔板的微孔聚烯烃多层膜及其制备方法。 至少一层微孔聚烯烃多层膜含有90〜100重量％的熔融温度为130〜140℃的聚乙烯，至少另一层为耐热性树脂20重量％以上，80重量％ 或更少的选自有机填料，无机填料及其混合物的填料。 耐热树脂优选为半结晶聚合物或无定形聚合物。 优选地，半结晶聚合物的结晶度为10-45％或熔融热为20〜90J / g，熔融温度为145〜250℃，玻璃化转变温度为-100℃ 〜90℃。此外，优选无定形聚合物不具有晶体，玻璃化转变温度为90〜120℃。