EP 0349307 A2 19900103 - Process for producing pitch-based carbon fibres superior in compressive physical properties.
Title (en)
Process for producing pitch-based carbon fibres superior in compressive physical properties.
Title (de)
Verfahren zur Herstellung von kohlenstoffhaltigen Fasern mit verbesserten physikalischen Druckeigenschaften.
Title (fr)
Procédé de fabrication de fibres de carbone à base de brai avec des propriétés physiques de compressivité supérieures.
Publication
Application
Priority
JP 16068388 A 19880630
Abstract (en)
A process for producing a pitch-based carbon fiber comprises hydrogenating a carbonaceous pitch in the presence of a hydrogenation catalyst to add to the pitch two moles or more hydrogen per pitch molecule; heat-treating the hydrogenated pitch at atmospheric pressure or under reduced pressure to obtain an optically anisotropic pitch; collecting from said optically anisotropic pitch a component which is insoluble in an organic solvent having a solubility parameter at 25 DEG C of 7.4 to 9.0 and soluble in an organic solvent having a solubility parameter at 25 DEG C of 9.2 to 11.0 to obtain a spinning pitch having an optically anisotropic phase content of 5% to 40% by volume; spinning said spinning pitch; and thereafter making the resulting pitch fiber infusible and then carbonizing the thus-infusiblized pitch fiber.
IPC 1-7
IPC 8 full level
C10C 3/02 (2006.01); C10C 3/00 (2006.01); C10C 3/04 (2006.01); D01F 9/145 (2006.01); D01F 9/155 (2006.01)
CPC (source: EP KR)
C10C 3/00 (2013.01 - EP); D01F 9/14 (2013.01 - KR); D01F 9/145 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0349307 A2 19900103; EP 0349307 A3 19900307; EP 0349307 B1 19941109; DE 68919283 D1 19941215; DE 68919283 T2 19950323; JP 2535207 B2 19960918; JP H0214023 A 19900118; KR 910001104 A 19910130; KR 960007715 B1 19960608
DOCDB simple family (application)
EP 89306590 A 19890629; DE 68919283 T 19890629; JP 16068388 A 19880630; KR 890009126 A 19890629