EP 0330181 A3 19900516 - PROCESS FOR PRODUCING NON-WOVEN FABRICS OF HIGH BULK DENSITY CARBON FIBERS
Title (en)
PROCESS FOR PRODUCING NON-WOVEN FABRICS OF HIGH BULK DENSITY CARBON FIBERS
Publication
Application
Priority
JP 4197488 A 19880226
Abstract (en)
[origin: EP0330181A2] A process for producing non-woven fabrics having a high bulk density, uniform porosity and little characteristic of so-called interlayer detachment are provided by subjecting an infusiblized sheet of pitch fibers to a heat treatment at a temperature higher than the softening temperature of the pitch fibers and lower than the softening temperature plus 300 DEG C, while applying a pressure to the surface of said sheet substantially in the vertical direction thereof.
IPC 1-7
IPC 8 full level
D01F 9/14 (2006.01); D04H 1/42 (2006.01); D04H 1/4242 (2012.01); D04H 1/54 (2006.01); D04H 3/00 (2006.01); D04H 3/002 (2012.01)
CPC (source: EP)
D04H 1/54 (2013.01)
Citation (search report)
- [X] FR 2286226 A1 19760423 - UNION CARBIDE CORP [US]
- [XP] EP 0297695 A2 19890104 - NIPPON OIL CO LTD [JP]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0330181 A2 19890830; EP 0330181 A3 19900516; JP H01221556 A 19890905
DOCDB simple family (application)
EP 89103092 A 19890222; JP 4197488 A 19880226