JPS57147586A - Modification of pitch for carbon fiber - Google Patents
Modification of pitch for carbon fiberInfo
- Publication number
- JPS57147586A JPS57147586A JP3311481A JP3311481A JPS57147586A JP S57147586 A JPS57147586 A JP S57147586A JP 3311481 A JP3311481 A JP 3311481A JP 3311481 A JP3311481 A JP 3311481A JP S57147586 A JPS57147586 A JP S57147586A
- Authority
- JP
- Japan
- Prior art keywords
- pitch
- melting
- carbon fiber
- crystalline phase
- spinning
- 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.)
- Granted
Links
Landscapes
- Working-Up Tar And Pitch (AREA)
- Inorganic Fibers (AREA)
Abstract
PURPOSE: In melting and spinning a pitch comprising a specific amount of a crystalline phase, to modify the pitch into a pitch for carbon fiber having improved spinnable properties, by melting it under heating, adding a specified amount of a fluorine type surface active agent to the pitch, and stirring them.
CONSTITUTION: In melting a pitch comprising 20W95wt% crystalline phase and spinning it, the pitch is heated and melted in an inert atmosphere, 0.1W10wt% based on the pitch amount of a fluorine type surface active agent preferably perfluoroalkylsulfonate (8C) is added to the pitch which is molten state, and stirred, so that the surface tensions of two phases of the crystalline and noncrystalline pitch are reduced, the noncrystalline phase is finely and uniformly dispersed into the crystalline phase, to modify the pitch.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3311481A JPS57147586A (en) | 1981-03-10 | 1981-03-10 | Modification of pitch for carbon fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3311481A JPS57147586A (en) | 1981-03-10 | 1981-03-10 | Modification of pitch for carbon fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57147586A true JPS57147586A (en) | 1982-09-11 |
JPH036199B2 JPH036199B2 (en) | 1991-01-29 |
Family
ID=12377613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3311481A Granted JPS57147586A (en) | 1981-03-10 | 1981-03-10 | Modification of pitch for carbon fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57147586A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62275190A (en) * | 1985-10-04 | 1987-11-30 | Osaka Gas Co Ltd | Fluorinated pitch and production of the same |
US4943365A (en) * | 1986-03-12 | 1990-07-24 | Rutgerswerke Ag | Method for the production of modified pitches and the further application |
-
1981
- 1981-03-10 JP JP3311481A patent/JPS57147586A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62275190A (en) * | 1985-10-04 | 1987-11-30 | Osaka Gas Co Ltd | Fluorinated pitch and production of the same |
US4943365A (en) * | 1986-03-12 | 1990-07-24 | Rutgerswerke Ag | Method for the production of modified pitches and the further application |
Also Published As
Publication number | Publication date |
---|---|
JPH036199B2 (en) | 1991-01-29 |
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