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Title:
OXIDE COMPOSITE PARTICLES, METHOD FOR PRODUCING SAME AND RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/137949
Kind Code:
A1
Abstract:
The present invention provides oxide composite particles which are mixed with a resin so as to obtain a resin composition that has high thermal conductivity, low dielectric constant and low dielectric loss tangent. Oxide composite particles which contain silica and alumina, while comprising from 40% by mass to 85% by mass of an α-cristobalite crystal phase, from 5% by mass to 50% by mass of an α-alumina crystal phase, and 10% by mass or less of a mullite crystal phase, wherein the elemental ratio of aluminum to silicon (aluminum/silicon) is 1.5 or more as determined by X-ray photoelectron spectroscopy.

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Inventors:
TSUNEYOSHI TOSHIHIKO (JP)
FUKAZAWA MOTOHARU (JP)
Application Number:
PCT/JP2021/042902
Publication Date:
June 30, 2022
Filing Date:
November 24, 2021
Export Citation:
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Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C01B33/26; C01B33/18; C04B35/18; C08K3/013; C08K3/20; C08K9/00; C08L101/00
Domestic Patent References:
WO2018186308A12018-10-11
Foreign References:
JP2019019222A2019-02-07
JP2020176025A2020-10-29
JP2018054881A2018-04-05
JP2001240470A2001-09-04
JP2005179137A2005-07-07
JP2002053369A2002-02-19
JP2003192339A2003-07-09
JPS58138740A1983-08-17
JP6207753B22017-10-04
JPH10251042A1998-09-22
Attorney, Agent or Firm:
YAMAMOTO, Osamu et al. (JP)
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