JPS5747385A - Preparation of raw material pitch for pitch-based carbon fiber - Google Patents
Preparation of raw material pitch for pitch-based carbon fiberInfo
- Publication number
- JPS5747385A JPS5747385A JP55122754A JP12275480A JPS5747385A JP S5747385 A JPS5747385 A JP S5747385A JP 55122754 A JP55122754 A JP 55122754A JP 12275480 A JP12275480 A JP 12275480A JP S5747385 A JPS5747385 A JP S5747385A
- Authority
- JP
- Japan
- Prior art keywords
- pitch
- mesophase
- raw material
- low
- pref
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prepare mesophase pitch which can easily be spun to filament, made infusible, and carbonized, easily and stably, by heating a raw material pitch at a low temperature to remove the low-molecular components and to narrow the molecular weight distribution, and then heat-treating at a high temperature.
CONSTITUTION: The low-molecular component which cannot produce mesophase or produces at a slow rate, is removed from the raw material pitch, by heating the pitch in an inert gas pref. at 350W400°C usually for 5W20hr under stirring. The heat-treated pitch is then heated at a mesophase-producing temperature, i.e. at 400W450°C in an inert gas stream under stirring to obtin mesophase pitch containing 50W70% of mesophase of 50W200μm in diameter. The raw material pitch is most pref. the straight asphalt of petroleum asphalt which is free of the extremely high molecular weight component inhibiting the growth of mesophase.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55122754A JPS5747385A (en) | 1980-09-03 | 1980-09-03 | Preparation of raw material pitch for pitch-based carbon fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55122754A JPS5747385A (en) | 1980-09-03 | 1980-09-03 | Preparation of raw material pitch for pitch-based carbon fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5747385A true JPS5747385A (en) | 1982-03-18 |
Family
ID=14843774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55122754A Pending JPS5747385A (en) | 1980-09-03 | 1980-09-03 | Preparation of raw material pitch for pitch-based carbon fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5747385A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4512874A (en) * | 1983-06-24 | 1985-04-23 | Kashima Oil Company Limited | Method for producing mesophase continuously |
US4529499A (en) * | 1983-06-24 | 1985-07-16 | Kashima Oil Company Limited | Method for producing mesophase pitch |
US4529498A (en) * | 1983-06-24 | 1985-07-16 | Kashima Oil Company Limited | Method for producing mesophase pitch |
JPS60181548A (en) * | 1984-02-28 | 1985-09-17 | Matsushita Electric Ind Co Ltd | Heat collecting device utilizing solar heat |
JPS60202189A (en) * | 1984-03-26 | 1985-10-12 | Idemitsu Kosan Co Ltd | Pitch for carbonaceous material and its preparation |
US4913889A (en) * | 1983-03-09 | 1990-04-03 | Kashima Oil Company | High strength high modulus carbon fibers |
CN103058171A (en) * | 2013-01-07 | 2013-04-24 | 航天材料及工艺研究所 | Preparation method of filled high-heat-conduction foamy carbon material for energy storage |
-
1980
- 1980-09-03 JP JP55122754A patent/JPS5747385A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4913889A (en) * | 1983-03-09 | 1990-04-03 | Kashima Oil Company | High strength high modulus carbon fibers |
US4512874A (en) * | 1983-06-24 | 1985-04-23 | Kashima Oil Company Limited | Method for producing mesophase continuously |
US4529499A (en) * | 1983-06-24 | 1985-07-16 | Kashima Oil Company Limited | Method for producing mesophase pitch |
US4529498A (en) * | 1983-06-24 | 1985-07-16 | Kashima Oil Company Limited | Method for producing mesophase pitch |
JPS60181548A (en) * | 1984-02-28 | 1985-09-17 | Matsushita Electric Ind Co Ltd | Heat collecting device utilizing solar heat |
JPS60202189A (en) * | 1984-03-26 | 1985-10-12 | Idemitsu Kosan Co Ltd | Pitch for carbonaceous material and its preparation |
JPH0516475B2 (en) * | 1984-03-26 | 1993-03-04 | Idemitsu Kosan Co | |
CN103058171A (en) * | 2013-01-07 | 2013-04-24 | 航天材料及工艺研究所 | Preparation method of filled high-heat-conduction foamy carbon material for energy storage |
CN103058171B (en) * | 2013-01-07 | 2014-11-19 | 航天材料及工艺研究所 | Preparation method of filled high-heat-conduction foamy carbon material for energy storage |
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