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    POROUS FILM AND PROCESS FOR PRODUCING THE SAME
    6.
    发明公开
    POROUS FILM AND PROCESS FOR PRODUCING THE SAME 有权
    PORÖSERFILM UND VERFAHREN ZU SEINER HERSTELLUNG

    公开(公告)号：EP1156076A1

    公开(公告)日：2001-11-21

    申请号：EP00981800.6

    申请日：2000-12-18

    申请人： Mitsui Chemicals, Inc.

    发明人： Yano, Shigeru Mitsui Chemicals, Inc. ,  Wang, Mindiaw Mitsui Chemicals, Inc. ,  Ichikawa, Taroh Mitsui Chemicals, Inc.

    IPC分类号： C08J9/00

    CPC分类号： C08J5/18 ,  C08J2323/08 ,  C08L23/06 ,  C08L23/0815 ,  Y10S521/908 ,  Y10T428/249979 ,  Y10T428/249986 ,  C08L2666/04

    摘要： A porous film having excellent moisture permeability, flexibility and exudation resistance, as well as a manufacturing method capable of forming and stretching at high speed a porous film having the characteristics described above, the porous film being molded from a composition containing 25 to 55% by weight of polyolefinic resin and 75 to 45% by weight of an inorganic filler in which the polyolefinic resin contains 98 to 70% by weight of linear low density polyethylene and 2 to 30% by weight of branched low density polyethylene, and 0.5 to 5 parts by weight of liquid ethylene-α-olefin oligomer based on 100 parts by weight of the composition.

    摘要翻译： 具有优异的透湿性，柔软性和渗出性的多孔膜以及能够高速形成和拉伸具有上述特征的多孔膜的制造方法，该多孔膜由含有25〜55％的 聚烯烃树脂的重量和75〜45重量％的无机填料，其中聚烯烃树脂含有98〜70重量％的线性低密度聚乙烯和2〜30重量％的支链低密度聚乙烯，以及0.5〜5重量份 的基于100重量份组合物的液体乙烯-α-烯烃低聚物。

    A process for producing synthetic resin foam
    8.
    发明公开
    A process for producing synthetic resin foam 失效
    一种生产合成树脂泡沫的方法

    公开(公告)号：EP0439692A3

    公开(公告)日：1992-02-19

    申请号：EP90120772.0

    申请日：1990-10-30

    申请人： KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA

    发明人： Motani, Shigeru ,  Saito, Tadayuki ,  Hayashi, Takahiro

    IPC分类号： C08J9/12 ,  C08J9/14

    CPC分类号： C08J9/149 ,  C08J9/00 ,  C08J9/0061 ,  C08J9/125 ,  Y10S521/908

    摘要： The present invention concerns the following subjects:
    (1) A process for producing a synthetic resin foam composed of cells having substantially two sizes, one of the sizes being at most 0.3 mm and the other size being 0.4 to 1 mm, comprising the steps of:
          forming a mixture of a water-absorbent high molecular compound, a cell controlling agent and a synthetic resin;
          kneading and melting the mixture with heating;
          incorporating water together with a volatile-type foaming agent into the mixture under pressure; and
          extruding the mixture into a lower pressure space to form a foam. (2) A process for producing a synthetic resin foam composed of cells having substantially two sizes, one of the sizes being at most 0.3 mm and the other size being 0.4 to 1 mm, comprising the steps of:
          forming a mixture of a water-absorbent high molecular compound, a cell controlling agent and a synthetic resin;
          adding water little by little to the mixture while or after mixing the mixture;
          introducing the mixture into an extruder;
          kneading and melting the resulting mixture with heating;
          incorporating a volatile-type foaming agent into the mixture under pressure; and
          extruding the mixture into a lower pressure space to form a foam. (3) A process for producing a synthetic resin foam composed of cells having substantially two sizes, one of the sizes being at most 0.3 mm and the other size being 0.4 to 1 mm, comprising the steps of:
          forming a mixture of water, a cell controlling agent and a synthetic resin;
          adding a water-absorbent high molecular compound to the mixture and mixing them;
          introducing the mixture into an extruder;
          kneading and melting the mixture with heating;
          incorporating a volatile-type foaming agent into the mixture under pressure; and
          extruding the mixture into a lower pressure space to form a foam. (4) A process for producing a synthetic resin foam composed of cells having substantially two sizes, one of the sizes being at most 0.3 mm and the other size being 0.4 to 1 mm, comprising the steps of:
          forming a mixture of water a synthetic resin;
          adding a water-absorbent high polymer molecular compound and a cell controlling agent;
          introducing the mixture into an extruder;
          kneading and melting the mixture with heating;
          incorporating a volatile-type foaming agent into the mixture under pressure; and
          extruding the mixture into a lower pressure space to form a foam.