EP 0477297 A4 19920715 - PROCESS FOR PRODUCTION OF GRAPHITE FLAKES AND FILMS VIA LOW TEMPERATURE PYROLYSIS
Title (en)
PROCESS FOR PRODUCTION OF GRAPHITE FLAKES AND FILMS VIA LOW TEMPERATURE PYROLYSIS
Publication
Application
Priority
US 36580189 A 19890614
Abstract (en)
[origin: WO9015776A1] Electrically conductive carbon flakes and films are prepared in high yield by the pyrolysis of cyclic aromatic hydrocarbons, optionally halogenated, in the presence of a dehydrogenating agent at about at least 800 DEG C. Flakes of thicknesses up to 20 mu m and lengths up to 1 cm on a side are metal-like in appearance and have a conductivity of about 200-300 S/cm at room temperature. By heat treatment to 2600 DEG C, graphitic order is improved and the conductivity rises to APPROX 10000-15000 S/cm.
IPC 1-7
IPC 8 full level
C01B 31/04 (2006.01); C04B 35/52 (2006.01); C08J 7/00 (2006.01); H01B 1/00 (2006.01); H01B 1/04 (2006.01); H01B 1/24 (2006.01)
CPC (source: EP US)
C01B 32/20 (2017.07 - EP US); C01B 32/205 (2017.07 - EP US); C04B 35/52 (2013.01 - EP); H01B 1/04 (2013.01 - EP US); C01P 2004/20 (2013.01 - EP); C01P 2006/40 (2013.01 - EP)
Citation (search report)
- [X] WORLD PATENTS INDEX LATEST Week 8502, Derwent Publications Ltd., London, GB; AN 85-009363 & JP-A-59 207 820 (AGENCY OF IND. SCI. TECH.) 26 November 1984
- [XP] CHEMISTRY OF MATERIALS, VOL. 1, NØ. 5, SEPT/OCT. 1989,American Chemical Society, Washington, US. CHANG, P. H.; LABES, M. M. :"NEW ROUTE TO GRA PHITE FLAKES AND FILMS: PYROLISIS OF AROMATIC AND HETEROAROMATIC COMPOUNDS UNDER DEHYDROGENATION CONDITIONS" ,pages 523-525.
- See references of WO 9015776A1
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
WO 9015776 A1 19901227; AU 5963990 A 19910108; EP 0477297 A1 19920401; EP 0477297 A4 19920715; JP H05502656 A 19930513
DOCDB simple family (application)
US 9003354 W 19900613; AU 5963990 A 19900613; EP 90911192 A 19900613; JP 51010290 A 19900613