EP 0163339 A3 19860917 - CARBON FIBERS AND METHODS FOR PRODUCING THE SAME
Title (en)
CARBON FIBERS AND METHODS FOR PRODUCING THE SAME
Publication
Application
Priority
US 60506484 A 19840430
Abstract (en)
[origin: EP0163339A2] Carbon yarn is produced by spinning continuous pitch yarn, treating the pitch yarn with an oxidizing composition, collecting the pitch yarn into a bulk form, and subjecting the treated pitch yarn to a heat treatment in a substantially non-reactive atmosphere to produce carbon yarn.
IPC 1-7
IPC 8 full level
D01F 9/14 (2006.01); D01F 9/145 (2006.01)
CPC (source: EP)
D01F 9/145 (2013.01)
Citation (search report)
- [X] US 3639953 A 19720208 - KIMURA ISAO, et al
- [A] FR 2118974 A1 19720804 - COAL INDUSTRY PATENTS LTD
- [AD] US 4276278 A 19810630 - BARR JOHN B, et al
- [AD] US 4275051 A 19810623 - BARR JOHN B
- [A] US 4055583 A 19771025 - KOLLING GEORG, et al
- [AD] US 4351816 A 19820928 - SCHULZ DAVID A
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0163339 A2 19851204; EP 0163339 A3 19860917; EP 0163339 B1 19890906; CA 1239512 A 19880726; DE 3572847 D1 19891012; JP H0250211 B2 19901101; JP S60231825 A 19851118
DOCDB simple family (application)
EP 85200687 A 19850429; CA 479045 A 19850412; DE 3572847 T 19850429; JP 8905785 A 19850426