JPS5735018A - Production of carbon fiber of high strength as well as high elasticity - Google Patents

Production of carbon fiber of high strength as well as high elasticity

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Publication number
JPS5735018A
JPS5735018A JP10680880A JP10680880A JPS5735018A JP S5735018 A JPS5735018 A JP S5735018A JP 10680880 A JP10680880 A JP 10680880A JP 10680880 A JP10680880 A JP 10680880A JP S5735018 A JPS5735018 A JP S5735018A
Authority
JP
Japan
Prior art keywords
depolymerizate
coal
carbon fiber
graphitized
carbonized
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
Application number
JP10680880A
Other languages
Japanese (ja)
Inventor
Mikio Oyabu
Kenji Fukuda
Keiichi Hirata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Coke Co Ltd
Original Assignee
Mitsui Coke Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Coke Co Ltd filed Critical Mitsui Coke Co Ltd
Priority to JP10680880A priority Critical patent/JPS5735018A/en
Publication of JPS5735018A publication Critical patent/JPS5735018A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: Coal is depolymerized with heat in a hydrocarbon solvent under pressurized hydrogen to form a depolymerizate of specific properties and the depolymerizate is heat treated to crystallize, melt-spun, made infusible, carbonized and graphitized to produce the titled carbon fiber of hogh performance.
CONSTITUTION: Coal is subjected to thermal depolymerization under pressurized hydrogen in a hydrocarbon solvent and the insoluble residue is removed. Further, the solvent is separated to give a coal depolymerizate of 0.01W0.07 oxygen/carbon atom ratio, more than 0.73 fa (aromatic factor according to the Brown-Ladner method) and less than 1,200 number-average molecular weight. The resultant depolymerizate is heat treated under mild agitation in an inert gas to form a crystalline pitch, melt spun, made infusible by oxidation with air, then carbonized in an inert gas and graphitized. The depolymerizate of such properties is obtained by depolymerization under drastic conditions.
COPYRIGHT: (C)1982,JPO&Japio
JP10680880A 1980-08-05 1980-08-05 Production of carbon fiber of high strength as well as high elasticity Pending JPS5735018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10680880A JPS5735018A (en) 1980-08-05 1980-08-05 Production of carbon fiber of high strength as well as high elasticity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10680880A JPS5735018A (en) 1980-08-05 1980-08-05 Production of carbon fiber of high strength as well as high elasticity

Publications (1)

Publication Number Publication Date
JPS5735018A true JPS5735018A (en) 1982-02-25

Family

ID=14443144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10680880A Pending JPS5735018A (en) 1980-08-05 1980-08-05 Production of carbon fiber of high strength as well as high elasticity

Country Status (1)

Country Link
JP (1) JPS5735018A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119955A (en) * 1983-12-02 1985-06-27 鶴田　禎二 Synthetic polymer body for living body material
JPS6219205A (en) * 1985-07-17 1987-01-28 Nok Corp Preparation of ultrafilter membrane
JPS63196720A (en) * 1987-02-04 1988-08-15 Shozo Watabe Furnace for carbonizing and graphitizing pitch yarn

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119955A (en) * 1983-12-02 1985-06-27 鶴田　禎二 Synthetic polymer body for living body material
JPS6219205A (en) * 1985-07-17 1987-01-28 Nok Corp Preparation of ultrafilter membrane
JPS63196720A (en) * 1987-02-04 1988-08-15 Shozo Watabe Furnace for carbonizing and graphitizing pitch yarn

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