Method and apparatus for plasma-treating porous body
    1.
    发明授权
    Method and apparatus for plasma-treating porous body 有权
    等离子体处理多孔体的方法和装置

    公开(公告)号:US08475724B2

    公开(公告)日:2013-07-02

    申请号:US12066447

    申请日:2006-09-11

    IPC分类号: B01J19/08 H05H1/24

    摘要: A method for plasma-treating a porous body, comprising the steps of generating plasma using an inert gas or a mixed gas of an inert gas and a reactive gas, (a) blowing the resultant plasma gas to the porous body at a flow rate per a unit area of the porous body of 0.002 to 2 L/minute/cm2, (b) sucking the porous body in a plasma gas atmosphere, or (c) sucking the porous body while blowing the plasma gas to the porous body at said flow rate, thereby treating the plasma the surfaces and pores of said porous body with plasma.

    摘要翻译: 一种用于等离子体处理多孔体的方法,包括以下步骤:使用惰性气体或惰性气体和反应性气体的混合气体产生等离子体,(a)以所述流动速率将所产生的等离子体气体吹送至多孔体 多孔体的单位面积为0.002〜2L /分/ cm 2,(b)在等离子体气体气氛中吸附多孔体,或者(c)在所述流动下将等离子体气体吹送到多孔体的同时吸入多孔体 速率,从而用等离子体处理所述多孔体的表面和孔隙的等离子体。

    METHOD FOR REMOVING DILUENT FROM A POLYMER EXTRUDATE, AND ITS APPLICATIONS
    3.
    发明申请
    METHOD FOR REMOVING DILUENT FROM A POLYMER EXTRUDATE, AND ITS APPLICATIONS 有权
    从聚合物挤出机中除去二氧化碳的方法及其应用

    公开(公告)号:US20100289174A1

    公开(公告)日:2010-11-18

    申请号:US12808095

    申请日:2008-12-12

    IPC分类号: B29C47/08 C08J3/00

    摘要: The invention relates to a method for removing a process solvent (P-sol) from a polymer extrudate, especially in connection with a process for producing a microporous membrane. The method involves contacting the extrudate with chlorinated hydrocarbon (CHC) and hydrofluoroether (HFE) in a first stage; contacting the extrudate from the first stage with HFE in a second stage; combining the first and second waste streams and then separating the P-sol from the combined streams to make an HFE-CHC stream; cooling the HFE-CHC stream to make an HFE-rich phase and a CHC-rich phase; and conducting the CHC-rich phase and/or the HFE-rich phase to step (A).

    摘要翻译: 本发明涉及一种从聚合物挤出物中除去工艺溶剂(P-sol)的方法,特别是与微孔膜的制造方法有关。 该方法包括在第一阶段使挤出物与氯化烃(CHC)和氢氟醚(HFE)接触; 在第二阶段将来自第一阶段的挤出物与HFE接触; 组合第一和第二废物流,然后将P-sol与合并的流分离以制备HFE-CHC流; 冷却HFE-CHC流以形成富含HFE的相和富CHC相; 并且将富CHCl相和/或富HFE相进行到步骤(A)。

    Production method of microporous polyethylene membrane and battery separator
    6.
    发明授权
    Production method of microporous polyethylene membrane and battery separator 有权
    微孔聚乙烯膜和电池隔膜的生产方法

    公开(公告)号:US07988895B2

    公开(公告)日:2011-08-02

    申请号:US12088037

    申请日:2006-09-27

    IPC分类号: B29C47/06

    摘要: A microporous polyethylene membrane having well-balanced permeability, mechanical properties, heat shrinkage resistance, compression resistance, electrolytic solution absorbability, shutdown properties and meltdown properties, with an average pore diameter changing in a thickness direction is produced by melt-blending a polyethylene resin and a membrane-forming solvent to prepare a solution A having a resin concentration of 25 to 50% by mass and a solution B having a resin concentration of 10 to 30% by mass, the resin concentration in the solution A being higher than that in the solution B, (a) simultaneously extruding the resin solutions A and B through a die, cooling the resultant extrudate to provide a gel-like sheet in which the resin solutions A and B are laminated, and removing the membrane-forming solvent from the gel-like sheet, or (b) extruding the resin solutions A and B through separate dies, removing the membrane-forming solvent from the resultant gel-like sheets A and B to form microporous polyethylene membranes A and B, and alternately laminating the microporous polyethylene membranes A and B, while easily controlling the average pore diameter distribution in the microporous polyethylene membrane in a thickness direction.

    摘要翻译: 通过将聚乙烯树脂和聚乙烯树脂熔融共混来制造平均孔径在厚度方向上变化的具有良好平衡的渗透性,机械性能,耐热收缩性,耐压缩性,电解溶液吸收性,停机性和熔融性的微孔聚乙烯膜, 成膜溶剂以制备树脂浓度为25〜50质量%的溶液A和树脂浓度为10〜30质量%的溶液B,溶液A中的树脂浓度高于 溶液B,(a)通过模具同时挤出树脂溶液A和B,冷却所得挤出物以提供其中层压有树脂溶液A和B的凝胶状片材,并从凝胶中除去成膜溶剂 或(b)通过分开的模具挤出树脂溶液A和B,从得到的凝胶状片材A和B中除去成膜溶剂, 形成微孔聚乙烯膜A和B,并且交替地层叠微孔聚乙烯膜A和B,同时容易地控制微孔聚乙烯膜在厚度方向上的平均孔径分布。

    METHOD FOR REMOVING DILUENT FROM AN EXTRUDATE OF A POLYMER SOLUTION
    7.
    发明申请
    METHOD FOR REMOVING DILUENT FROM AN EXTRUDATE OF A POLYMER SOLUTION 有权
    从聚合物溶液中除去稀释液的方法

    公开(公告)号:US20100273032A1

    公开(公告)日:2010-10-28

    申请号:US12747831

    申请日:2008-12-12

    IPC分类号: H01M2/16 C08J9/28

    摘要: The invention relates to a method for removing diluent from a polymer extrudate, especially in connection with a process for producing a microporous membrane. The method involves contacting the extrudate with a second solvent in a first stage; contacting the extrudate from the first stage with a third solvent in a second stage; conducting a first stream away from the first stage and/or conducting a second stream away from the second stage; and cooling at least a portion of the first and/or second stream and separating therefrom at least one of a first phase rich in the second solvent or a second phase rich in the third solvent.

    摘要翻译: 本发明涉及一种用于从聚合物挤出物中除去稀释剂的方法,特别是涉及用于生产微孔膜的方法。 该方法包括在第一阶段使挤出物与第二溶剂接触; 在第二阶段将来自第一阶段的挤出物与第三溶剂接触; 将远离所述第一级的第一流和/或从所述第二级进行第二流的第一流; 以及冷却所述第一和/或第二物流的至少一部分并从其中分离富含第二溶剂的第一相或富含第三溶剂的第二相中的至少一种。