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    • 10. 发明公开
    • Method for continuous preparation of silicone rubber base
    • 维尔法赫恩·祖尔·康斯坦
    • EP0832914A2
    • 1998-04-01
    • EP97116913.1
    • 1997-09-30
    • Dow Corning Toray Silicone Company Limited
    • Hamada, MitsuoIshida, KoichiKomatsu, AtsushiKurusa, HidetoshiMori, HideyukiYamadera, Toyohiko
    • C08J3/20C08K3/04
    • C08J3/203B01F7/00208B01F7/00775B01F2215/0481B01F2215/0495B29B7/402B29B7/7495B29B7/90C08G77/12C08G77/20C08J2383/04C08L83/04C08L83/00
    • A method is provided for (rapidly) producing a silicone rubber base, containing an electrically conductive filler that has a specific surface of at least 0.5 m 2 /g, which is homogeneously dispersed in an organopolysiloxane without formation of undesirable clumps or lumps.
      The method includes the steps of continuously supplying to a continuous mixing apparatus

      (A) 100 weight parts of polyorganosiloxane that has a viscosity at 25°C of 100 to 500,000 mPa·s comprising at least two silicon-bonded alkenyl groups molecule,
      (B) 0.1 to 700 weight parts of electrically conductive inorganic filler with a surface of at least 0.5 m 2 /g wherein the combined quantity of components (B) and (C) is from 5 to 700 weight parts, and
      (C) 0 to 200 weight parts of electrically nonconductive inorganic filler
      wherein the continuous mixing apparatus has a cylindrical body casing with a material feed opening at the top of said casing, a mixture discharge outlet at the bottom of said casing, and a rotating disk within said casing such that the ratio of the diameter of the rotating disk to the inside diameter of said casing is 0.80 to 0.95;
         mixing components (A) through (C) by rotation of said disk to form a mixture; and then
         discharging said mixture through said discharge outlet.
    • 提供了一种方法,用于(快速)生产硅橡胶基质,其含有比表面积至少为0.5m 2 / g的导电填料,其均匀分散在有机聚硅氧烷中,而不形成不期望的团块或团块。 该方法包括以下步骤:向连续混合装置(A)连续供应100重量份的聚有机硅氧烷,其在25℃下的粘度为100至500,000mPa.s,其包含至少两个硅键合的烯基分子,(B) 0.1〜700重量份表面积为0.5m 2 / g以上的导电无机填料,其中组分(B)和(C)的组合量为5〜700重量份,(C)0〜 200重量份的非导电无机填料,其中连续混合装置具有圆柱体壳体,在所述壳体的顶部具有供料口,在所述壳体底部的混合物排出口和所述壳体内的旋转盘,使得 旋转盘的直径与所述壳体的内径的比为0.80〜0.95; 通过旋转所述盘来混合组分(A)至(C)以形成混合物; 然后通过所述排出口排出所述混合物。