Title:
【発明の名称】高強度炭素繊維および前駆体繊維
Document Type and Number:
Japanese Patent JP2825923
Kind Code:
B2
Abstract:
A graphitized fiber heat-treated at a temperature higher than 2300 DEG C. in an inert atmosphere, of which oxidation weight reduction rate A in dry air at 650 DEG C. is in the range defined by the equation (1), of which BET specific surface area S determine by nitrogen or krypton adsorption technique at -196 DEG C. is in the range defined by the equation (2), and of which pore volume determined by the carbon dioxide adsorption technique at 25 DEG C. is 0.001 ml/g or less: (1) (2) where, A is the oxidation weight reduction rate in dry air at 650 DEG C. in min-1 S is the specific surface area determine by nitrogen or kypton adsoprtion technique at -196 DEG C. in m2g-1 D is the mean monofilament diameter of the graphitized fiber in mu m and rho is the density of the graphitized fiber in gcm-3.
Inventors:
ARAI YUTAKA
FURUYAMA MASATOSHI
SUNAGO HIROFUMI
TOMIOKA NORIO
FURUYAMA MASATOSHI
SUNAGO HIROFUMI
TOMIOKA NORIO
Application Number:
JP9017890A
Publication Date:
November 18, 1998
Filing Date:
April 06, 1990
Export Citation:
Assignee:
SHINNIPPON SEITETSU KK
SHINNITSUTETSU KAGAKU KK
SHINNITSUTETSU KAGAKU KK
International Classes:
D01F9/145; D01F9/14; (IPC1-7): D01F9/145
Domestic Patent References:
| JP59226093A | ||||
| JP26620A | ||||
| JP144751B2 |
Attorney, Agent or Firm:
Mikio Hatta (1 outside)