ALUMINUM NITRIDE-BASED POWDER AND METHOD FOR PRODUCING SAME

Title:

ALUMINUM NITRIDE-BASED POWDER AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2018/216591

Kind Code:

A1

Abstract:

[Problem] To provide an aluminum nitride-based powder, in which the content of fine powder particles that cannot be removed is small and which has an excellent property to be filled in a polymeric material and excellent heat conductivity. [Solution] An aluminum nitride-based powder composed of aluminum nitride-based particles, said powder being characterized in that: (1) the average particle diameter D50 is 15 to 200 μm; (2) the content of particles each having a particle diameter of 5 μm or less is 60% or less in terms of the number of particles; (3) the content of an alkali earth metal element and a rare earth element is 0.1% by weight or less; (4) the content of oxygen is 0.5% by weight or less; (5) and the content of silicon is 1000 ppm by weight or less and the content of iron is 1000 ppm by weight or less.

Inventors:

TANAKA TAKAMASA (JP)
KUSUI JUN (JP)
NAKASHIMA KATSUMI (JP)
HIGASHIMURA KAZUYA (JP)
KANNO SHUHEI (JP)

Application Number:

PCT/JP2018/019074

Publication Date:

November 29, 2018

Filing Date:

May 17, 2018

Export Citation:

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Assignee:

TOYO ALUMINIUM KK (JP)

International Classes:

C01B21/072; C08K3/28; C08L101/00

Foreign References:

JP2003119010A	2003-04-23
JPH01182331A	1989-07-20
JP2000016805A	2000-01-18
JP2004182585A	2004-07-02
JPH07215707A	1995-08-15
JP2016037438A	2016-03-22
JP2013087042A	2013-05-13
JP2013060322A	2013-04-04
JP2000016805A	2000-01-18

Other References: