Invention Grant
- Patent Title: Magnesium oxide powder, thermally conductive filler, resin composition, and production method for magnesium oxide powder
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Application No.: US18010586Application Date: 2021-12-01
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Publication No.: US11884553B2Publication Date: 2024-01-30
- Inventor: Isamu Fujikawa , Masamichi Nakagawa , Takashi Hamaoka , Takeshi Himoto , Seiji Yamaguchi , Kunio Watanabe
- Applicant: Ube Material Industries, Ltd.
- Applicant Address: JP Ube
- Assignee: UBE MATERIAL INDUSTRIES, LTD.
- Current Assignee: UBE MATERIAL INDUSTRIES, LTD.
- Current Assignee Address: JP Ube
- Agency: WHDA, LLP
- Priority: JP 20217797 2020.12.25
- International Application: PCT/JP2021/044152 2021.12.01
- International Announcement: WO2022/138037A 2022.06.30
- Date entered country: 2022-12-15
- Main IPC: C01F5/02
- IPC: C01F5/02 ; C08K3/22
Abstract:
This magnesium oxide powder contains secondary particles in which a plurality of primary particles of magnesium oxide having a crystal phase and a grain boundary phase are at least partially fused together by the grain boundary phase, and a median diameter obtained by a laser diffraction scattering method is 300 μm or less.
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