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Title:
HEXAGONAL BORON NITRIDE POWDER, METHOD FOR PRODUCING SAME, RESIN COMPOSITION AND RESIN SHEET
Document Type and Number:
WIPO Patent Application WO/2018/124126
Kind Code:
A1
Abstract:
The present invention provides a hexagonal boron nitride powder which is configured such that: primary particles in the hexagonal boron nitride powder have an average length (L) of more than 10.0 μm but 30.0 μm or less, an average thickness (D) of 1.0 μm or more, and a ratio of the average length (L) to the average thickness (D), namely L/D of from 3.0 to 5.0 (inclusive); and the content ratio of primary particles that have a ratio of the length (l) to the thickness (d), namely l/d of from 3.0 to 5.0 (inclusive) is 25% or more. The present invention also provides: a method for producing this hexagonal boron nitride powder; and a resin composition and a resin sheet, each of which contains this hexagonal boron nitride powder.

Inventors:
OTSUKA YUKI (JP)
FUKASAWA MASARU (JP)
Application Number:
JP2017/046769
Publication Date:
July 05, 2018
Filing Date:
December 26, 2017
Export Citation:
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Assignee:
SHOWA DENKO KK (JP)
International Classes:
C01B21/064; C08K3/38; C08L101/00; C09K5/14
Domestic Patent References:
WO2014109134A12014-07-17
WO2016092951A12016-06-16
WO2017126608A12017-07-27
WO2017145869A12017-08-31
Foreign References:
JP2016216271A2016-12-22
JP2015212217A2015-11-26
JPH0741311A1995-02-10
JP2007308360A2007-11-29
JPS61286207A1986-12-16
JP3461651B22003-10-27
JPH0585482B21993-12-07
JP2011098882A2011-05-19
JP2005343728A2005-12-15
JP4750220B22011-08-17
JP5081488B22012-11-28
JP2015212217A2015-11-26
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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