THERMALLY-CURABLE HEAT-CONDUCTIVE SILICONE GREASE COMPOSITION
    430.
    发明公开
    THERMALLY-CURABLE HEAT-CONDUCTIVE SILICONE GREASE COMPOSITION 审中-公开
    可热固化的导热硅氧烷油脂组合物

    公开(公告)号:EP2843003A1

    公开(公告)日:2015-03-04

    申请号:EP13780721.0

    申请日:2013-03-15

    Abstract: Provided is a thermally-curable heat-conductive silicone grease composition which has high shape-retaining property in an early stage even when the viscosity of the composition is low (i.e. the composition is easy to apply) in the early stage, and which becomes soft (has low hardness) after being cured. The thermally-curable heat-conductive silicone grease composition comprises, as essential components:
    (A) organopolysiloxane having a viscosity of 100 to 100,000 mPa·s at 25°C and containing at least one alkenyl group per molecule;
    (B) organopolysiloxane represented by general formula (1)

    (wherein R 1 represents a monovalent hydrocarbon group; R 2 represents an alkyl group, an alkoxyalkyl group, an alkenyl group or an acyl group; n represents 2 to 100; and a represents 1 to 3);
    (C) organohydrogenpolysiloxane containing at least two hydrogen atoms each directly bound to a silicon atom per molecule;
    (D) catalyst selected from the group consisting of platinum and platinum compounds;
    (F) heat-conductive filler having a heat conductivity of 10 W/m·°C or more; and
    (G) silica micropowder.

    Abstract translation: 本发明提供一种热固性导热性硅酮润滑脂组合物,其即使在组合物的粘度低的早期(组合物容易涂布),在早期阶段也具有高的形状保持性, (硬度低)固化后。 该可热固化的导热硅氧烷油脂组合物包含作为基本组分的:(A)在25℃下粘度为100至100,000mPa·s并且每分子含有至少一个链烯基的有机聚硅氧烷; (B)通式(1)表示的有机聚硅氧烷(式中,R1表示一价烃基,R2表示烷基,烷氧基烷基,链烯基或酰基,n表示2〜100,a表示1〜3 ); (C)每个分子含有至少两个直接与硅原子直接键合的氢原子的有机基氢聚硅氧烷; (D)选自铂和铂化合物的催化剂; (F)导热率为10W / m·℃以上的导热性填料; 和(G)二氧化硅微粉。

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