Heat-dissipating silicone grease compositon
    76.
    发明公开
    Heat-dissipating silicone grease compositon 审中-公开
    Wikrmeableitende Silikonfettzusammensetzung

    公开(公告)号:EP2194581A1

    公开(公告)日:2010-06-09

    申请号:EP09252678.9

    申请日:2009-11-25

    Abstract: An invention of a heat-dissipating grease composition characterized by comprising of the following components (A)-(C) is disclosed.
    Component (A): 100 mass parts of organopolysiloxane wherein a thixotropicity degree α is 1.03-1.50, a viscosity is 100-1,000,000 mPa · s at 25°C; in this regard, the thixotropicity degree α is η 1/ η 2 . Herein, η 1 is a measured viscosity at 25°C measured by a B type rotation viscometer at 6 rpm of a rotor, η 2 is a measured viscosity at 25°C measured by a B type rotation viscometer at 12 rpm of the rotor.
    Component (B): 5-200 mass parts of hydrolysable organopolysiloxane having three functional groups at one end represented by the following general formula (1);

    R 1 in the formula is an alkyl group having 1-6 carbon atoms, R 2 is at least one kind of groups having 1-18 carbon atoms selected from a group consisting of substituted or unsubstituted monovalent hydrocarbon groups, a is an integer of 5-120.
    Component (C): 200-4,000 mass parts of a thermoconductive inorganic filler having an average particle diameter of 0.1-100 µm and 0.01-50 m 2 /g of a specific surface.

    Abstract translation: 公开了一种散发性润滑脂组合物的发明,其特征在于包含以下组分(A) - (C)。 成分(A):100质量份的触变性度±1.03-1.50的有机聚硅氧烷,25℃下的粘度为100〜100,000mPa·s; 在这方面,触变度±为·1 /·2。 这里,·1是通过B型旋转粘度计以6rpm的转子测定的25℃下的测定粘度,·2是通过B型旋转粘度计以12rpm的转子测定的25℃下的测定粘度。 组分(B):5-200质量份由下列通式(1)表示的一端具有三个官能团的可水解有机聚硅氧烷; 式中的R 1是具有1-6个碳原子的烷基,R 2是选自取代或未取代的一价烃基的具有1-18个碳原子的基团中的至少一种,a是5的整数 -120。 成分(C):200-4,000质量份平均粒径为0.1-100μm,比表面积为0.01-50m 2 / g的导热无机填料。

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