Title:
SPHERICAL ALUMINA PARTICLE MIXTURE, METHOD FOR PRODUCING SAME, AND RESIN COMPOSITE COMPOSITION AND RESIN COMPOSITE BODY EACH CONTAINING SAID SPHERICAL ALUMINA PARTICLE MIXTURE
Document Type and Number:
WIPO Patent Application WO/2022/210928
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a spherical alumina particle mixture that is capable of improving the thermal conductivity of a resin composition, which is obtained by kneading the spherical alumina particle mixture with a resin, while suppressing viscosity of the resin composition; and a method for producing this spherical alumina particle mixture. A spherical alumina particle mixture which is characterized in that: with respect to the particle size distribution thereof as determined by wet particle size analysis, the proportion of particles having a size of 180 μm or more is 0.04% by weight or less; 45% or more of the particles are in the α phase; the specific surface area is from 0.3 to 1.0 m2/g; and the circularity is 0.85 or more. A method for producing this spherical alumina particle mixture.
Inventors:
NUMAO RYUTARO (JP)
AOYAMA YASUHIRO (JP)
AE MASANORI (JP)
TANAKA MUTSUHITO (JP)
YAGI KATSUMASA (JP)
AOYAMA YASUHIRO (JP)
AE MASANORI (JP)
TANAKA MUTSUHITO (JP)
YAGI KATSUMASA (JP)
Application Number:
PCT/JP2022/016162
Publication Date:
October 06, 2022
Filing Date:
March 30, 2022
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
C01F7/021; C08K3/22; C08L101/00
Domestic Patent References:
| WO2016017637A1 | 2016-02-04 | |||
| WO2021200491A1 | 2021-10-07 |
Foreign References:
| JPH10237311A | 1998-09-08 | |||
| JP2001226117A | 2001-08-21 | |||
| JP2012020900A | 2012-02-02 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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