EP 3093380 A4 20170816 - PAN-BASED CARBON FIBER AND PRODUCTION METHOD THEREFOR

Title (en)

PAN-BASED CARBON FIBER AND PRODUCTION METHOD THEREFOR

Title (de)

PAN-BASIERTE KOHLEFASER UND PRODUKTIONSVERFAHREN DAFÜR

Title (fr)

FIBRE DE CARBONE À BASE DE PAN ET PROCÉDÉ POUR SA PRODUCTION

Publication

EP 3093380 A4 20170816 (EN)

Application

EP 14878023 A 20141226

Priority

JP 2014001505 A 20140108
JP 2014084468 W 20141226

Abstract (en)

[origin: EP3093380A1] Provided are: a PAN-based carbon fiber comprising three or more phases different in crystal size, preferably having a sheath-core structure with three or more layers; and a production method therefor. By configuring a carbon fiber from three or more phases different in crystal size, or by a production method wherein a specified polymer for spinning is spun, stabilization is performed under specified conditions and thereafter carbonization is performed, time for the stabilization can be greatly shortened and productivity can be improved, and a PAN-based carbon fiber capable of exhibiting a high degree of elongation while maintaining a sufficiently high strength can be obtained.

IPC 8 full level

D01F 9/22 (2006.01); D01D 5/06 (2006.01); D01D 5/34 (2006.01); D01F 8/00 (2006.01)

CPC (source: EP KR US)

D01D 5/06 (2013.01 - US); D01D 5/34 (2013.01 - KR); D01F 8/08 (2013.01 - EP US); D01F 9/22 (2013.01 - EP KR US); D01F 9/225 (2013.01 - EP KR US); D01F 9/328 (2013.01 - KR); D01D 5/34 (2013.01 - EP US)

Citation (search report)

[XAY] US 2001031238 A1 20011018 - OMARU ATSUO [JP], et al
[Y] JP 2009149712 A 20090709 - TORAY INDUSTRIES
[A] GB 1375136 A 19741127
See references of WO 2015105019A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3093380 A1 20161116; EP 3093380 A4 20170816; CN 105874112 A 20160817; CN 105874112 B 20180330; JP 6347450 B2 20180627; JP WO2015105019 A1 20170323; KR 20160106044 A 20160909; US 2016326672 A1 20161110; WO 2015105019 A1 20150716

DOCDB simple family (application)

EP 14878023 A 20141226; CN 201480072235 A 20141226; JP 2014084468 W 20141226; JP 2015509246 A 20141226; KR 20167012813 A 20141226; US 201415110336 A 20141226