EP 3704289 B1 20240103 - PREPARATION OF CARBON FIBERS FROM LIGNIN/PVA PRECURSOR FIBERS
Title (en)
PREPARATION OF CARBON FIBERS FROM LIGNIN/PVA PRECURSOR FIBERS
Title (de)
HERSTELLUNG VON KOHLENSTOFFFASERN AUS LIGNIN / PVA-PRECURSOR-FASERN
Title (fr)
PRÉPARATION DE FIBRES DE CARBONE À PARTIR DE FIBRES PRÉCURSEURS LIGNINE/PVA
Publication
Application
Priority
- FR 1760248 A 20171030
- EP 2018079571 W 20181029
Abstract (en)
[origin: WO2019086377A2] The invention relates to a method for producing carbon fiber precursor fibers comprising a lignin and a polyvinyl alcohol (PVA) and containing at least 60 % by mass of lignin relative to the total mass of lignin-PVA. The method includes providing a solution of lignin and PVA in a solvent, injecting the solution containing lignin and PVA into a coagulation bath to obtain one or more fibers, containing at least 60 % by mass of lignin, coagulated by wet spinning. The invention also relates to a material comprising or consisting of one or more carbon fiber precursor fibers.
IPC 8 full level
D01D 5/06 (2006.01); D01F 6/50 (2006.01); D01F 9/17 (2006.01)
CPC (source: EP)
D01D 1/02 (2013.01); D01D 5/06 (2013.01); D01F 6/50 (2013.01); D01F 9/17 (2013.01)
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)
FR 3072976 A1 20190503; FR 3072976 B1 20200911; EP 3704289 A2 20200909; EP 3704289 B1 20240103; WO 2019086377 A2 20190509; WO 2019086377 A3 20190627
DOCDB simple family (application)
FR 1760248 A 20171030; EP 18795551 A 20181029; EP 2018079571 W 20181029