Aluminium nitride powder and thermally conductive grease composition using the same
    208.
    发明公开
    Aluminium nitride powder and thermally conductive grease composition using the same 审中-公开
    Pulveriges Aluminiumnitrid undwärmeleitendedieses Pulver enthaltende Schmierfettzusammensetzung

    公开(公告)号:EP0982391A1

    公开(公告)日:2000-03-01

    申请号:EP98310273.2

    申请日:1998-12-15

    Abstract: An aluminum nitride powder having the surface treated with an organosilane represented by formula, R I a R II b SiY 4-1-b , and/or a partial hydrolysis condensate thereof to acquire excellent moisture-proof, wherein R I represents a 6-20C alkyl group or a group formed by substituting halogen atom or atoms for part or all of the hydrogen atoms attached to carbon atoms of the 6-20C alkyl group, R II represents a 1-20C hydrocarbon group or a group formed by substituting halogen atom or atoms for part or all of the hydrogen atoms attached to carbon atoms of the 1-20C hydrocarbon group, Y represents a hydrolyzable group, a is an integer of 1 to 3 and b is an integer of 0 to 2, provided that a+b is an integer of 1 to 3; and a thermally conductive grease composition comprising (A) 50-95 weight % of the aforementioned surface-treated aluminum nitride powder and (B) 5 to 50 weight % of at least one base oil selected from the group consisting of liquid silicones, liquid hydrocarbons and fluorohydrocarbon oils, and further, if desired, (C) 0-30 weight % of a thicknener selected from the group consisting of zinc oxide, alumina, boron nitride and silicon carbide powders.

    Abstract translation: 具有由式R a a B b Si Y 4 -1-b表示的有机硅烷表面处理的氮化铝粉末和/或其部分水解缩合物以获得优异的防湿性,其中R 1表示 6-20C烷基或通过用卤原子或原子取代与6-20C烷基的碳原子连接的部分或全部氢原子形成的基团,R II代表1-20C烃基或基团 通过用1-20个碳原子的碳原子连接的部分或全部氢原子代替卤原子或原子而形成,Y表示可水解基团,a为1〜3的整数,b为0〜2的整数 条件是a + b为1〜3的整数。 和导热性油脂组合物,其包含(A)50-95重量%的上述表面处理的氮化铝粉末和(B)5至50重量%的至少一种基础油,其选自液体硅酮,液体烃 和氟代烃油,并且如果需要,(C)0-30重量%的选自氧化锌,氧化铝,氮化硼和碳化硅粉末的增稠剂。

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