公开(公告)号：EP2955156A4

公开(公告)日：2016-09-21

申请号：EP14749001

申请日：2014-02-06

Applicant: TOKUYAMA CORP

Inventor： FUKUNAGA YUTAKA ,  KANECHIKA YUKIHIRO ,  WANG MENG ,  SUGAWARA KEN

IPC: C01B21/072 ,  C04B35/581 ,  C04B35/626 ,  C08K3/28 ,  C08L101/00 ,  C09K5/14

CPC classification number: C01B21/072 ,  C01B21/0726 ,  C01P2004/03 ,  C01P2004/40 ,  C01P2004/42 ,  C01P2004/52 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/32 ,  C04B35/581 ,  C04B35/6265 ,  C04B35/6268 ,  C04B2235/3206 ,  C04B2235/3225 ,  C04B2235/3865 ,  C04B2235/3895 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/5481 ,  C04B2235/656 ,  C04B2235/666 ,  C04B2235/668 ,  C04B2235/78 ,  C04B2235/787 ,  C04B2235/96 ,  C04B2235/9607 ,  C08K3/28 ,  C08L101/00 ,  C09K5/14 ,  Y10T428/2982

公开(公告)号：EP2952476A4

公开(公告)日：2016-08-10

申请号：EP13873822

申请日：2013-02-04

Applicant: TOKUYAMA CORP

Inventor： FUKUNAGA YUTAKA ,  KANECHIKA YUKIHIRO

IPC: C01B21/072

CPC classification number: C01B21/0726 ,  C01B21/072 ,  C01B21/0728 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/12 ,  C09K5/14

Abstract: [Problem] To provide a method for producing sintered aluminum nitride granules, which have high thermal conductivity and an excellent property of being filled in a resin, have an average grain diameter of 10 to 200 µm, and are useful as a filler for heat-releasing materials such as a heat-releasing resin, grease, adhesive agent or coating agent, in a simple manner. [Solution] The method for producing sintered aluminum nitride granules according to the present invention is characterized by comprising: a reduction nitridation step of carrying out the reduction nitridation of porous alumina granules at a temperature of 1400 to 1700°C inclusive to produce porous aluminum nitride granules; and a sintering step of sintering the porous aluminum nitride granules, which are produced in the reduction nitridation step, at a temperature of 1580 to 1900°C inclusive.