Title:
METHOD FOR PRODUCING GRANULAR BORON NITRIDE AND GRANULAR BORON NITRIDE
Document Type and Number:
WIPO Patent Application WO/2020/195298
Kind Code:
A1
Abstract:
According to the present invention, when boron nitride is mixed with a resin material and a molded body is produced by using the resultant mixture, the thermal conductivity is further increased. In addition, when using a rare earth component, the usage amount thereof is reduced. The granular boron nitride can be produced by means of a method which is for producing a granular boron nitride composition and comprises a step for heat-treatinge, in a non-oxidizing gas atmosphere, a mixture composed of: (1) a boron nitride component containing boron nitride; (2) a rare earth component containing an oxide of at least one rare earth element selected from among yttrium, cerium, and ytterbium, and/or a precursor compound thereof; and (3) a calcium component containing calcium oxide and/or calcium carbonate.
Inventors:
KUSUNOSE TAKAFUMI (JP)
UNO YOSHINORI (JP)
UNO YOSHINORI (JP)
Application Number:
PCT/JP2020/005627
Publication Date:
October 01, 2020
Filing Date:
February 13, 2020
Export Citation:
Assignee:
UNIV KAGAWA NAT UNIV CORP (JP)
International Classes:
C01B21/064; C04B35/583; C08L63/00; C08L101/00
Domestic Patent References:
| WO2016092951A1 | 2016-06-16 |
Foreign References:
| JP2019043804A | 2019-03-22 | |||
| JP2016060661A | 2016-04-25 | |||
| JP2013056789A | 2013-03-28 | |||
| JP2018165241A | 2018-10-25 |
Other References:
T KUSUNOSE , Y UNO , T SEKINO: "Improvement of thermal conduction anisotropy of epoxy hybrid material by addition of aggregated boron nitride filler", LECTURE PREPRINTS OF THE CERAMIC SOCIETY OF JAPAN ANNUAL MEETING, 15 March 2018 (2018-03-15), XP009523844, ISBN: 978-4-931298
KUSUNOSE TAKAFUMI; SEKINO TOHRU: "Thermal conductivity of hot-pressed hexagonal boron nitride", SCRIPTA MATERIALIA, vol. 124, 2016, pages 138 - 141, XP029698312, ISSN: 1359-6462, DOI: 10.1016/j.scriptamat.2016.07.011
YOSHINORI UNO, NAOFUMI KUSUNOSE, TORU SEKINO: "1PC02: Fabrication of agglomerated boron nitride fillers from fine boron nitride particles part 2", LECTURE PREPRINTS OF THE 31ST FALL MEETING OF THE CERAMIC SOCIETY OF JAPAN; SEPTEMBER 5-7, 2018; NAGOYA INSTITUTE OF TECHNOLOGY, CERAMIC SOCIETY OF JAPAN, JP, vol. 31, 30 November 2017 (2017-11-30), JP, pages 1PC02, XP009523845, ISBN: 978-4-931298-76-7
KUSUNOSE TAKAFUMI; SEKINO TOHRU: "Thermal conductivity of hot-pressed hexagonal boron nitride", SCRIPTA MATERIALIA, vol. 124, 2016, pages 138 - 141, XP029698312, ISSN: 1359-6462, DOI: 10.1016/j.scriptamat.2016.07.011
YOSHINORI UNO, NAOFUMI KUSUNOSE, TORU SEKINO: "1PC02: Fabrication of agglomerated boron nitride fillers from fine boron nitride particles part 2", LECTURE PREPRINTS OF THE 31ST FALL MEETING OF THE CERAMIC SOCIETY OF JAPAN; SEPTEMBER 5-7, 2018; NAGOYA INSTITUTE OF TECHNOLOGY, CERAMIC SOCIETY OF JAPAN, JP, vol. 31, 30 November 2017 (2017-11-30), JP, pages 1PC02, XP009523845, ISBN: 978-4-931298-76-7
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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