PITCH COMPOSITION FOR PREPARING CARBON FIBER

Title:

PITCH COMPOSITION FOR PREPARING CARBON FIBER

Document Type and Number:

Japanese Patent JPS5936725

Kind Code:

A

Abstract:

PURPOSE: A pitch composition, containing a specific quinoline-soluble component, and having a specified values of a specific gravity and aromaticity and high viscoelasticity at the spinning temperatue and excellent melt spinning properties.

CONSTITUTION: A pitch composition, containing ≥30wt%, preferably 50W70wt%, quinoline-soluble component, having 1.29W1.40, preferably 1.30W1.35, specific gravity at 20°C and 0.45W0.9, preferably 0.5W0.8, aromaticity and within 700W 1,700, preferably within 800W1,500, number average molecular weight range of the above-mentioned quinoline-soluble component, and prepared preferably from coal tar pitch as a raw material. The quinoline-soluble component contains hydrogen (HA) having 5W7ppm chemical shift and hydrogen (HB) having 3W4ppm chemical shift based on the TMS in the 1H-NMR as respectively as follows: 4.5W 10% and 2.5W7.5%.

Inventors:

YAMADA YASUHIRO
IMAMURA TAKESHI
HONDA HIDEMASA
SAWAKI TOORU
SASAKI HIDEHARU

Application Number:

JP14703782A

Publication Date:

February 29, 1984

Filing Date:

August 24, 1982

Export Citation:

Click for automatic bibliography generation Help

Assignee:

KOGYO GIJUTSUIN

International Classes:

C10C3/04; C10C3/00; C10C3/02; C10C3/10; D01F9/12; D01F9/145; D01F9/15; (IPC1-7): C10C3/00; D01F9/12

Domestic Patent References:

JPS5841914A	1983-03-11
JPS5455625A	1979-05-02
JPS5657881A	1981-05-20
JPS57100186A	1982-06-22

Attorney, Agent or Firm:

Director, Kyushu Industrial Technology Institute, AIST

Previous Patent: A molding part of a glass Tsukuru device

Next Patent: PRECURSOR PITCH FIBER FOR CARBON FIBER