| (19) |
 |
|
(11) |
EP 0 295 684 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
24.07.1991 Bulletin 1991/30 |
| (43) |
Date of publication A2: |
|
21.12.1988 Bulletin 1988/51 |
| (22) |
Date of filing: 16.06.1988 |
|
| (51) |
International Patent Classification (IPC)4: D01F 9/20 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
19.06.1987 JP 151237/87
|
| (71) |
Applicant: Mitsubishi Oil Company, Limited |
|
Minato-ku
Tokyo (JP) |
|
| (72) |
Inventors: |
|
- Tate, Kazuhito
Yokohama-shi
Kanagawa (JP)
- Tsuchimoto, Koji
Ichikawa-shi
Chiba (JP)
- Yanagida, Kazuhiro
Kamakura-shi
Kanagawa (JP)
|
| (74) |
Representative: Hansen, Bernd, Dr.rer.nat. et al |
|
Hoffmann, Eitle & Partner
Patentanwälte
Postfach 81 04 20
81904 München
81904 München (DE) |
|
| |
|
| (54) |
Process for producing conductive graphite fiber |
(57) A process for producing a graphite fiber is disclosed, which is characterized by
using, as a starting material, an optically anisotropic pitch prepared from a compound
having a specific chemical structure as represented by formula (I) shown in the specification.
The resulting graphite fiber shows a highly developed graphite structure and has excellent
electrical conductivity.