Title:
MAGNESIUM OXIDE POWDER AND RESIN COMPOSITION USING SAME
Document Type and Number:
WIPO Patent Application WO/2024/004738
Kind Code:
A1
Abstract:
Provided are a magnesium oxide powder that has excellent moisture resistance and can achieve such a low dielectric loss tangent as to be applicable to devices for high frequency band, and a resin composition using the same. A magnesium oxide powder (I) comprising coated particles (X) in which the surface of a core particle (A) containing magnesium oxide is coated with a coating layer (B) containing MgAl2O4, wherein: the ratio of MgAl2O4 to the total mass of the magnesium oxide powder (I) is more than 1 mass% but less than 38 mass%; and the median diameter (Di50) of the magnesium oxide powder (I) is 25-180 μm inclusive.
Inventors:
TSUNEYOSHI TOSHIHIKO (JP)
FUKAZAWA MOTOHARU (JP)
OKABE TAKUTO (JP)
FUKAZAWA MOTOHARU (JP)
OKABE TAKUTO (JP)
Application Number:
PCT/JP2023/022605
Publication Date:
January 04, 2024
Filing Date:
June 19, 2023
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C01F5/02; C08K9/02; C08L101/00
Domestic Patent References:
| WO2014112334A1 | 2014-07-24 |
Foreign References:
| JPS6445716A | 1989-02-20 | |||
| CN103242042A | 2013-08-14 | |||
| JP2004027177A | 2004-01-29 | |||
| JP2018512361A | 2018-05-17 |
Attorney, Agent or Firm:
SONODA & KOBAYASHI INTELLECTUAL PROPERTY LAW (JP)
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