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15 条记录 (耗时 0.172 秒)

    Cross-linked polyolefin separator and manufacturing method for same
    1.
    发明授权
    Cross-linked polyolefin separator and manufacturing method for same 有权

    公开(公告)号：US11355814B2

    公开(公告)日：2022-06-07

    申请号：US16755444

    申请日：2019-06-11

    申请人： LG Chem, Ltd.

    发明人： Joo-Sung Lee ,  Won-Sik Bae ,  Bi-Oh Ryu ,  Heon-Sik Song

    IPC分类号： H01M50/417 ,  C08K5/01 ,  H01M50/411 ,  H01M50/403 ,  H01M10/052 ,  H01M50/40

    摘要： A method for manufacturing a crosslinked polyolefin separator, including the steps of: (S1) introducing polyolefin having a weight average molecular weight of 200,000-1,000,000, a first diluting agent, alkoxysilane containing a carbon-carbon double bonded group, an initiator and a crosslinking catalyst to an extruder; (S2) introducing a second diluting agent to the extruder, followed by mixing, to carry out reactive extrusion of a silane-grafted polyolefin composition; (S3) molding and orienting the reactive extruded silane-grafted polyolefin composition in a form of a sheet; (S4) extracting the first diluting agent and the second diluting agent from the oriented sheet to obtain a silane-grafted polyolefin porous membrane; (S5) thermally fixing the porous membrane; and (S6) crosslinking the porous membrane in the presence of water and a crosslinked polyolefin separator are provided. According to the method, it is possible to provide a separator which shows a decrease in intensive silane crosslinking on the surface thereof.

    Cross-Linked Polyolefin Separator and Manufacturing Method for Same
    2.
    发明申请
    Cross-Linked Polyolefin Separator and Manufacturing Method for Same 审中-公开

    公开(公告)号：US20200266411A1

    公开(公告)日：2020-08-20

    申请号：US16755444

    申请日：2019-06-11

    申请人： LG Chem, Ltd.

    发明人： Joo-Sung Lee ,  Won-Sik Bae ,  Bi-Oh Ryu ,  Heon-Sik Song

    IPC分类号： H01M2/16 ,  H01M2/14 ,  C08K5/01

    摘要： A method for manufacturing a crosslinked polyolefin separator, including the steps of: (S1) introducing polyolefin having a weight average molecular weight of 200,000-1,000,000, a first diluting agent, alkoxysilane containing a carbon-carbon double bonded group, an initiator and a crosslinking catalyst to an extruder; (S2) introducing a second diluting agent to the extruder, followed by mixing, to carry out reactive extrusion of a silane-grafted polyolefin composition; (S3) molding and orienting the reactive extruded silane-grafted polyolefin composition in a form of a sheet; (S4) extracting the first diluting agent and the second diluting agent from the oriented sheet to obtain a silane-grafted polyolefin porous membrane; (S5) thermally fixing the porous membrane; and (S6) crosslinking the porous membrane in the presence of water and a crosslinked polyolefin separator are provided. According to the method, it is possible to provide a separator which shows a decrease in intensive silane crosslinking on the surface thereof.

    Crosslinked Polyolefin Separator and Manufacturing Method Therefor
    3.
    发明申请
    Crosslinked Polyolefin Separator and Manufacturing Method Therefor 审中-公开

    公开(公告)号：US20200220139A1

    公开(公告)日：2020-07-09

    申请号：US16648562

    申请日：2019-07-26

    申请人： LG Chem, Ltd.

    发明人： Joo-Sung Lee ,  Bi-Oh Ryu ,  Won-Sik Bae ,  A-Young Lee ,  Heon-Sik Song

    IPC分类号： H01M2/16 ,  H01M2/14 ,  C08J7/16

    摘要： A crosslinked polyolefin separator which has gels with a longer side length of 50 μm or more in a number ranging from 0 to 3 per 1 m2 of the separator, and shows a standard deviation of absorbance ratio between the center of the separator and the side thereof ranging from 0.01 to 0.5 is provided. A method for manufacturing the crosslinked polyolefin separator is also provided. The method includes (S1) preparing a polyolefin porous membranes, and (S2) applying a coating solution containing an initiator and alkoxy group-containing vinylsilane onto at least one surface of the porous membrane. The coating solution can permeate even to the inside of exposed pores. Thus, it is possible to provide a crosslinked polyolefin separator in which silane crosslinking occurs uniformly even inside of the pores.

    Method for preparing microporous polyolefin film by thermally-induced phase separation method
    10.
    发明授权
    Method for preparing microporous polyolefin film by thermally-induced phase separation method 有权
    通过热诱导相分离法制备微孔聚烯烃膜的方法

    公开(公告)号：US09505899B2

    公开(公告)日：2016-11-29

    申请号：US14444419

    申请日：2014-07-28

    申请人： LG CHEM, LTD.

    发明人： Bong-Tae Kim ,  Heon-Sik Song ,  Jung-Ho Lim ,  Kyoung-Min Kim

    IPC分类号： C08J9/28 ,  C08J5/18 ,  C08L23/02 ,  B29C47/00 ,  B29K23/00 ,  B29L31/34

    CPC分类号： C08J9/28 ,  B29C47/0057 ,  B29K2023/065 ,  B29L2031/3468 ,  C08J5/18 ,  C08J9/283 ,  C08J2201/052 ,  C08J2323/02 ,  C08J2323/06 ,  C08L23/02

    摘要： The present invention discloses a method for preparing a microporous polyolefin film comprising: a step of injecting a composition comprising polyolefin 30 to 60 wt % and a diluent, which can make liquid-liquid phase separation with the polyolefin thermodynamically 40 to 70 wt %, into an extruding machine, and melting and kneading thereof to prepare a single phase melt; and a step of extruding the melt while conducting liquid-liquid phase separation by passing through a section having the temperature below the liquid-liquid phase separation temperature and forming thereof in the form of a sheet, and a microporous polyolefin film prepared according to the method.

    摘要翻译： 本发明公开了一种微孔聚烯烃薄膜的制造方法，其特征在于，包括以下步骤：将含有聚烯烃30〜60重量％的组合物和稀释剂进行注入，所述稀释剂能够将聚烯烃与动力学上的液 - 液相分离为40〜70重量％ 挤出机，并将其熔融和捏合以制备单相熔体; 以及通过使液体 - 液相分离温度低于液 - 液相分离温度的部分进行液 - 液相分离而挤出熔融物的步骤，并将其形成为片状，以及根据该方法制备的微孔聚烯烃膜 。