METHOD FOR PRODUCING SILICON-CONTAINING OXIDE-COATED ALUMINUM NITRIDE PARTICLE

    公开(公告)号:US20240327646A1

    公开(公告)日:2024-10-03

    申请号:US18291038

    申请日:2023-06-29

    CPC classification number: C09C3/006 C09C1/40 C09C3/043 C09C3/12

    Abstract: A method for producing a silicon-containing oxide-coated aluminum nitride particle that maintains the high thermal conductivity of aluminum nitride particles, have excellent moisture resistance, and do not easily aggregate. A method for producing a silicon-containing oxide-coated aluminum nitride particle including an aluminum nitride particle and a silicon-containing oxide film that covers a surface of the aluminum nitride particle. The method includes a vapor-depositing an organic silicone compound including a specific structure on the surface of the aluminum nitride particle to obtain the aluminum nitride particle covered with the organic silicone compound under a nitrogen atmosphere, and a partial pressure of the organic silicone compound in the nitrogen atmosphere is 2.6×102 to 3.9×103 Pa, and heating the aluminum nitride particle covered with the organic silicone compound at a temperature of 300° C. or higher and lower than 1000° C.

    THERMALLY CONDUCTIVE COMPOSITION
    4.
    发明公开

    公开(公告)号:US20230399512A1

    公开(公告)日:2023-12-14

    申请号:US18127704

    申请日:2023-03-29

    Abstract: A thermally conductive composition contains a resin composition and a thermally conductive filler, wherein the resin composition contains a vinyl group-containing silicone resin having a viscosity ranging from 40,000 mPa·s to 200,000,000 mPa·s at 25° C. and a polysiloxane compound having at least one hydroxy group at an end, having no vinyl group, and having a weight-average molecular weight (Mw) of 10,000 or more and 20,000 or less, the mass ratio of the vinyl group-containing silicone resin to the polysiloxane compound [the vinyl group-containing silicone resin/the polysiloxane compound] is 50/50 or more and less than 90/10, the content of the thermally conductive filler ranges from 300 parts by mass to 5,000 parts by mass with respect to 100 parts by mass of the resin composition, and a cured product of the thermally conductive composition has a thermal conductivity of 1.0 W/mk or more.

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