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Title:
HEAT CONDUCTIVE POLYCARBONATE RESIN COMPOSITION
Document Type and Number:
Japanese Patent JP2013256578
Kind Code:
A
Abstract:

To provide a heat conductive polycarbonate resin composition excellent in thermal conductivity and durability, and having a low molding shrinkage ratio and a low thermal conductivity ratio of MD direction to TD direction.

A heat conductive polycarbonate resin composition contains a polycarbonate resin, a pitch-based graphitized short fiber, and a graphite particle, wherein in the heat conductive polycarbonate resin composition, the pitch-based graphitized short fiber has an aspect ratio of 6 to 20 and a Laman spectrum parameter ID/IG of 0.080 to 0.150; the graphite particle has an aspect ratio produced in the thickness and major axis directions of 10 to 50, a Laman spectrum parameter ID/IG of 0.050 to 0.085, and an average particle diameter of 5 to 50 μm; a mixture of the pitch-based graphitized short fiber and the graphite particle has a BET specific surface area of ≤10 m2/g; 500 to 2,000 pts.wt. of the graphite particle is contained based on 100 pts.wt. of the pitch-based graphitized short fiber; and 50 to 100 pts.wt. of the total of the pitch-based graphitized short fiber and the graphite particle is contained based on 100 pts.wt. of the polycarbonate resin.


Inventors:
ONOE SHUHEI
KIN TATSUICHIRO
Application Number:
JP2012132938A
Publication Date:
December 26, 2013
Filing Date:
June 12, 2012
Export Citation:
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Assignee:
TEIJIN LTD
International Classes:
C08L69/00; C08K3/04; C08K7/06
Domestic Patent References:
JP2008150595A2008-07-03
JP2009215403A2009-09-24
JP2005325345A2005-11-24
JP2012077224A2012-04-19
JP2007091985A2007-04-12
JP2006282842A2006-10-19
JP2010108925A2010-05-13
JP2008031359A2008-02-14
JP2008031358A2008-02-14
JP2012188488A2012-10-04
JP2013256579A2013-12-26
JP2008150595A2008-07-03
JP2009215403A2009-09-24
JP2005325345A2005-11-24
JP2012077224A2012-04-19
JP2007091985A2007-04-12
JP2006282842A2006-10-19
JP2010108925A2010-05-13
JP2008031359A2008-02-14
JP2008031358A2008-02-14
Foreign References:
WO2010038704A12010-04-08
WO2008062844A12008-05-29
WO2010038704A12010-04-08
WO2008062844A12008-05-29
US20110105685A12011-05-05
US20100004372A12010-01-07
EP1589079A12005-10-26
US20040007694A12004-01-15
Attorney, Agent or Firm:
Taro Tameyama