The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2022
Filed:
Dec. 12, 2017
Applicant:
Tokuyama Corporation, Shunan, JP;
Inventors:
Shota Daiki, Shunan, JP;
Kyoichi Fujinami, Shunan, JP;
Assignee:
TOKUYAMA CORPORATION, Shunan, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 21/064 (2006.01); C08K 3/22 (2006.01); C08K 3/28 (2006.01); C08K 3/38 (2006.01);
U.S. Cl.
CPC ...
C01B 21/0645 (2013.01); C01B 21/064 (2013.01); C08K 3/22 (2013.01); C01P 2002/70 (2013.01); C01P 2004/51 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); C01P 2006/32 (2013.01); C01P 2006/80 (2013.01); C08K 2003/2227 (2013.01); C08K 2003/282 (2013.01); C08K 2003/385 (2013.01); C08K 2201/005 (2013.01); C08K 2201/006 (2013.01);
Abstract
To provide a hexagonal boron nitride powder which contains agglomerates, has a maximum torque calculated by measuring in accordance with JIS-K-6217-4 of 0.20 to 0.50 Nm, a DBP absorption rate of 50 to 100 ml/100 g, a tap bulk density of 0.66 to 0.95 g/cmand reduced anisotropy of heat conduction and can provide high heat conductivity and dielectric strength to a resin composition produced by filling a resin therewith and a process for producing the powder by carrying out a reduction nitriding reaction using boron carbide.