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    Microporous film, particularly battery separator, and method of making
    36.
    发明授权
    Microporous film, particularly battery separator, and method of making 失效
    微孔膜，特别是电池隔膜，以及制造方法

    公开(公告)号：US4335193A

    公开(公告)日：1982-06-15

    申请号：US16176

    申请日：1979-02-28

    Applicant: Yoshinao Doi ,  Shigeo Kaneko ,  Takeo Hanamura ,  Osamu Fujii ,  Katsumi Yoshitake ,  Tetsuhiko Hirata ,  Yasuhiro Tanabe

    Inventor： Yoshinao Doi ,  Shigeo Kaneko ,  Takeo Hanamura ,  Osamu Fujii ,  Katsumi Yoshitake ,  Tetsuhiko Hirata ,  Yasuhiro Tanabe

    IPC: B01D71/06 ,  C08J9/00 ,  C08J9/26 ,  C08J9/28 ,  C25B13/08 ,  H01M2/16

    CPC classification number: C08J9/0066 ,  C08J9/28 ,  C08K3/00 ,  H01M2/1653 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/02

    Abstract: This invention is directed to a microporous film comprising a 40 to 90 volume percent polyolefin having a number average molecular weight of 15,000 or more and a weight average molecular weight of less than 300,000 and a 10 to 60 volume percent inorganic filler and having a void space rate or porosity of 30 to 75 volume percent based on the volume of the film. The microporous film of such specific composition and structure has a desired wettability and a much reduced electrical resistance. Said resistance being as low as 0.0006 .OMEGA.dm.sup.2 /sheet. Said film has sufficient flexibility and mechanical strength to make it useful in wide variety of applications, especially as separators in batteries or electrolytical apparatuses etc. Such microporous material is prepared by: (a) blending a specified polyolefin, an inorganic filler and an organic liquid in amounts of 10 to 60 volume percent, 6 to 35 volume percent and 30 to 75 volume percent, respectively, based on the total volume of the blend, the amount of the polyolefin being 2/3 to 9 times the amount of the inorganic filler; (b) molding the blend to form a film; and (c) extracting said organic liquid from the molded film.

    Abstract translation: 本发明涉及一种微孔薄膜，其包含数均分子量为15,000以上且重均分子量小于300,000的40〜90体积％的聚烯烃和10〜60体积％的无机填料，并具有空隙空间 速率或孔隙率基于膜的体积为30至75体积％。 这种具体组成和结构的微孔膜具有所需的润湿性和大大降低的电阻。 所述电阻低至0.0006欧姆dm2 /片。 所述膜具有足够的柔韧性和机械强度，使其可用于各种应用中，特别是作为电池或电解装置等中的分离器。这种微孔材料通过以下制备：（a）将指定的聚烯烃，无机填料和有机液体 分别为10至60体积％，6至35体积％和30至75体积％，基于共混物的总体积，聚烯烃的量为无机填料量的2/3至9倍 ; （b）将共混物模制成膜; 和（c）从模塑膜中提取所述有机液体。

    Methods for making microporous products
    37.
    发明授权
    Methods for making microporous products 失效
    制造微孔产品的方法

    公开(公告)号：US4247498A

    公开(公告)日：1981-01-27

    申请号：US963628

    申请日：1978-11-24

    Applicant: Anthony J. Castro

    Inventor： Anthony J. Castro

    IPC: A01N25/10 ,  B41N7/00 ,  C08J9/28 ,  C09K3/14 ,  B29D27/04

    CPC classification number: C09K3/149 ,  A01N25/10 ,  B41N7/00 ,  C08J9/28 ,  B41N2207/02 ,  B41N2207/14 ,  C08J2201/052 ,  C08J2201/0543 ,  C08J2201/0546

    Abstract: Novel microporous polymers in forms ranging from films to blocks and intricate shapes from synthetic thermoplastic polymers, such as, olefinic, condensation, and oxidation polymers, are disclosed. In one embodiment the microporous polymers are characterized by a relatively homogeneous, three-dimensional cellular structure having cells connected by pores of smaller dimension. Also disclosed is a process for making microporous polymers from such thermoplastic polymers by heating a mixture of the polymer and a compatible liquid to form a homogeneous solution, cooling said solution under non-equilibrium thermodynamic conditions to initiate liquid-liquid phase separation, and continuing said cooling until the mixture achieves substantial handling strength. Also disclosed are microporous polymer products which contain relatively large amounts of functionally useful liquids and behave as solids.

    Abstract translation: 公开了从合成热塑性聚合物（例如烯烃，缩合和氧化聚合物）的薄膜到块状和复杂形状的新型微孔聚合物。 在一个实施方案中，微孔聚合物的特征在于具有通过较小尺寸的孔连接的细胞的相对均匀的三维细胞结构。 还公开了一种通过加热聚合物和相容液体的混合物以形成均匀溶液从这种热塑性聚合物制备微孔聚合物的方法，在非平衡热力学条件下冷却所述溶液以引发液 - 液相分离，并且继续所述 冷却直到混合物达到显着的处理强度。 还公开了含有相对大量功能上有用的液体并表现为固体的微孔聚合物产品。

    Microporous styrene polymers and method of making same
    38.
    发明授权
    Microporous styrene polymers and method of making same 失效
    微孔苯乙烯聚合物及其制备方法

    公开(公告)号：US4002177A

    公开(公告)日：1977-01-11

    申请号：US555988

    申请日：1975-03-06

    Applicant: Norman B. Rainer ,  Peter Allen Wilson

    Inventor： Norman B. Rainer ,  Peter Allen Wilson

    IPC: A24D3/08 ,  C08J3/02 ,  C08J9/28 ,  A24B15/00

    CPC classification number: C08J3/02 ,  A24D3/08 ,  C08J9/28 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2325/04

    Abstract: Microporous styrene polymers are provided having randomly interconnected open network of irregularly shaped pores whose walls consist of cohered spherical particles of the polymer. These microporous styrene polymers are produced by mixing styrene polymer latex with a water-soluble ether, casting, molding, or impregnating the resulting mixture into a fibrous material, heating same to a temperature of from about 80.degree. C to about 120.degree. C and removing the ether.

    Abstract translation: 提供微孔苯乙烯聚合物，其具有随机互连的不规则形状的孔的开放网络，其壁由聚合物的聚焦球形颗粒组成。 这些微孔苯乙烯聚合物通过将苯乙烯聚合物胶乳与水溶性醚混合，将所得混合物浇铸，模塑或浸渍成纤维材料，将其加热至约80℃至约120℃的温度并除去 以太。

    Method of making a porous polymeric material
    39.
    发明授权
    Method of making a porous polymeric material 失效
    制造多孔聚合材料的方法

    公开(公告)号：US3856914A

    公开(公告)日：1974-12-24

    申请号：US39397773

    申请日：1973-09-04

    Applicant: KINYOSHA KK

    Inventor： MAEDA M ,  ONUKI A ,  KUSANO K

    IPC: C08J9/28 ,  B29D27/00

    CPC classification number: C08J9/28 ,  C08J2201/0543 ,  C08J2201/0546

    Abstract: A method of making a porous polymeric material comprising a plurality of interconnected cells, comprising mixing together 100 parts of a liquid prepolymer, at least 40 parts of an inert organic liquid and 1.5 to 15 parts of an emulsifier to form a stable emulsion of dispersed liquid prepolymer in the organic liquid, heating the emulsion to at least 90* C in the presence of a cross-linking agent to form a porous polymeric material with a plurality of interconnected cells filled with the organic liquid, and extracting the organic liquid from the cells.

    Abstract translation: 一种制备包含多个互连电池的多孔聚合材料的方法，包括将100份液体预聚物，至少40份惰性有机液体和1.5至15份乳化剂混合在一起以形成分散液体的稳定乳液 预聚物在有机液体中，在交联剂存在下将乳液加热到至少90℃，以形成多孔聚合物材料，其中多个互相连接的细胞填充有机液体，并从细胞中提取有机液体 。

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