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    POROUS BEADS AND PROCESS FOR PRODUCING THE SAME
    81.
    发明申请
    POROUS BEADS AND PROCESS FOR PRODUCING THE SAME 审中-公开
    多孔石及其制造方法

    公开(公告)号：WO01036522A1

    公开(公告)日：2001-05-25

    申请号：PCT/JP2000/008074

    申请日：2000-11-16

    IPC: C08J9/16 ,  C08J9/28 ,  C08L71/08 ,  C08J3/12

    CPC classification number: C08J9/16 ,  C08J9/28 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2371/00 ,  C08J2371/08 ,  Y10T428/2982 ,  Y10T428/2998

    Abstract: Porous beads which are substantially spherical ones made of an aromatic polyether ketone resin and have an average particle diameter of 50 to 5,000 mu m and a porosity of 40 to 99%. The process is characterized by comprising: mixing an aromatic polyether ketone resin with a solvent for the resin with heating to obtain a resin solution; dispersing the resin solution into a liquid dispersion medium which is a nonsolvent for the resin and is immiscible with the solvent to obtain a dispersion in which the resin solution is present as dispersed droplets; cooling the dispersion while maintaining the dispersed state of the resin solution to thereby solidify the resin contained in the resin solution; and separating the solidified resin from the mixture of the solvent and the dispersion medium to obtain substantially spherical porous beads made of the aromatic polyether ketone resin.

    Abstract translation: 由芳香族聚醚酮树脂制成的基本上为球形的平均粒径为50〜5000μm，孔隙率为40〜99％的多孔珠。 该方法的特征在于包括：将芳族聚醚酮树脂与用于树脂的溶剂加热混合以获得树脂溶液; 将树脂溶液分散到作为树脂的非溶剂的液体分散介质中，与溶剂不混溶，得到树脂溶液以分散的液滴形式存在的分散体; 在保持树脂溶液的分散状态的同时冷却分散体，从而固化树脂溶液中所含的树脂; 并从溶剂和分散介质的混合物中分离固化树脂，得到由芳族聚醚酮树脂制成的基本上球形的多孔珠粒。

    SEPARATOR OF BATTERY WHEREIN ORGANIC ELECTROLYTE IS USED AND PRODUCTION THEREOF
    83.
    发明申请
    SEPARATOR OF BATTERY WHEREIN ORGANIC ELECTROLYTE IS USED AND PRODUCTION THEREOF 审中-公开
    使用有机电解质的电池分离器及其生产

    公开(公告)号：WO1993001623A1

    公开(公告)日：1993-01-21

    申请号：PCT/JP1992000834

    申请日：1992-07-02

    Applicant: ASAHI KASEI KOGYO KABUSHIKI KAISHA ,  SOGO, Hiroshi

    Inventor： ASAHI KASEI KOGYO KABUSHIKI KAISHA

    IPC: H01M02/16

    CPC classification number: C08J9/26 ,  C08J9/28 ,  C08J2201/0442 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/02 ,  C08L23/06 ,  C08L23/10 ,  C08L2205/02 ,  H01M2/162 ,  H01M2/1653 ,  H01M2300/0025

    Abstract: A separator of a battery wherein an organic electrolyte is used, which is made of a microporous film having a matrix constituted of a polyethylene having such a molecular weight distribution that a portion having a molecular weight of 1,000,000 or above accounts for 10 wt.% or above and a portion having a molecular weight of 100,000 or less accounts for 5 wt.% or above and a polypropylene having a weight-average molecular weight of 10,000 to 1,000,000 in an amount of 5 to 45 wt.% of the total amount of polyethylene and polypropylene. The microporous film has a thickness of 10 to 500 νm, a porosity of 40 to 85 % and a maximum pore diameter of 0.05 to 5 νm. This battery separator can be readily produced by extrusion-molding a mixture of the polyethylene having the above-specified molecular weight distribution, the polypropylene having the above-specified weight-average molecular weight, an organic liquid and fine inorganic powder to form a film, and then extracting the organic liquid and the inorganic powder from the film. It has not only excellent stability but also excellent chemical resistance, mechanical strength and ion permeability, and is extremely useful as the separators of not only a lithium cell but also other primary and secondary cells wherein an organic electrolyte is used.

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