| (19) |
 |
|
(11) |
EP 0 175 200 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
05.08.1987 Bulletin 1987/32 |
| (43) |
Date of publication A2: |
|
26.03.1986 Bulletin 1986/13 |
| (22) |
Date of filing: 02.09.1985 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
11.09.1984 JP 19040484
|
| (71) |
Applicant: MITSUBISHI KASEI CORPORATION |
|
() |
|
| (72) |
Inventors: |
|
- Kagizaki, Masami
()
- Takakura, Tsuyoshi
()
- Tahara, Hiroshi
()
|
|
| |
|
| (54) |
Process for producing a carbon fiber from pitch material |
(57) A process for producing a carbon fiber from pitch material, which comprises melt
spinning pitch material in a gaseous atmosphere to form precursory pitch fibers and
bundling the precursory pitch fibers, followed by infusible treatment and carbonization
and optionally by graphitization, characterized in that an aqueous emulsion of a silicone
oil is applied as an oiling agent to the precursory pitch fibers prior to or during
the bundling operation.