EP 3408433 A1 20181205 - WET SPINNING METHOD FOR PRODUCING A LIGNIN-CONTAINING FIBER AS A PRECURSOR FOR A CARBON FIBER
Title (en)
WET SPINNING METHOD FOR PRODUCING A LIGNIN-CONTAINING FIBER AS A PRECURSOR FOR A CARBON FIBER
Title (de)
NASSSPINNVERFAHREN ZUR HERSTELLUNG EINER LIGNINHALTIGEN FASER ALS PRECURSOR FÜR EINE KOHLENSTOFFFASER
Title (fr)
PROCÉDÉ DE FILAGE AU MOUILLÉ POUR LA PRODUCTION D'UNE FIBRE CONTENANT DE LA LIGNINE UTILISÉE COMME PRÉCURSEUR POUR UNE FIBRE DE CARBONE
Publication
Application
Priority
EP 2016051589 W 20160126
Abstract (en)
[origin: WO2017129231A1] The invention relates to a method for producing a precursor fiber which is suitable for further processing into carbon and activated carbon fibers. The method is a wet spinning method in which a spinning solution consisting of lignin or lignin derivatives, cellulose carbamate, and alkali lye are pressed through the holes of a nozzle and introduced directly into a coagulation bath. The precursor fibers falling into the bath can undergo different additional method steps: they can be stretched, post-treated, dried at an increased temperature, and wound. Because the precursor fibers constitute an inexpensive starting material, the precursor fibers can be used in connection with the production of carbon and activated carbon fibers.
IPC 8 full level
D01F 2/24 (2006.01); D01F 9/16 (2006.01); D01F 9/17 (2006.01)
CPC (source: EP US)
D01F 2/24 (2013.01 - EP US); D01F 9/16 (2013.01 - EP US); D01F 9/17 (2013.01 - EP US)
Citation (search report)
See references of WO 2017129231A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017129231 A1 20170803; EP 3408433 A1 20181205; JP 2019502839 A 20190131; US 2019032250 A1 20190131
DOCDB simple family (application)
EP 2016051589 W 20160126; EP 16702897 A 20160126; JP 2018538736 A 20160126; US 201616072514 A 20160126