Title:
FILLER AND PRODUCTION METHOD OF THE SAME, AND HIGH HEAT-CONDUCTING INSULATION MATERIAL AND PRODUCTION METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2020132827
Kind Code:
A
Abstract:
To meet two contradictory demands for high heat conduction and high electrical insulation at a high level.SOLUTION: Filler consists of mixed particles including small-sized filler with a small average primary particle diameter Dand large-sized filler with a large average primary particle diameter D. A ratio of the average primary particle diameter of the small-sized filler to that of the large-sized filler D/Dis 2×10to 3×10, and volume resistivity of the mixed particles is 2×10Ω m or more. In addition, a mixing ratio of the small-sized filler is 0.5 to 40 mass% with respect to 100 mass% of the mixed particles. Further, the small-sized filler particles adhere to the outer peripheral surface of the large-sized filler particles, and the small-sized filler particles are standing in a row as a rosary in cavities between large-sized filler particles, so that a three-dimensional network structure is formed by the small-sized filler particles in the cavities.SELECTED DRAWING: Figure 1
Inventors:
AOKI MASAO
Application Number:
JP2019032263A
Publication Date:
August 31, 2020
Filing Date:
February 26, 2019
Export Citation:
Assignee:
NIPPON AEROSIL CO LTD
International Classes:
C08L101/00; C08K3/013; H01B3/00; H01L23/36; H01L23/373; H05K7/20
Domestic Patent References:
| JP2018002901A | 2018-01-11 | |||
| JP2016162515A | 2016-09-05 | |||
| JP2009062436A | 2009-03-26 | |||
| JPH0368660A | 1991-03-25 |
Foreign References:
| WO2013121571A1 | 2013-08-22 | |||
| WO2017098566A1 | 2017-06-15 | |||
| WO2014115266A1 | 2014-07-31 |
Attorney, Agent or Firm:
Masayoshi Suda
Akira Murasawa
Akira Murasawa