EP 2864061 A1 20150429 - METHOD FOR PRODUCING SECONDARY CARBON FIBERS AND/OR GLASS FIBERS
Title (en)
METHOD FOR PRODUCING SECONDARY CARBON FIBERS AND/OR GLASS FIBERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON SEKUNDÄREN CARBON- UND/ODER GLASFASERN
Title (fr)
PROCÉDÉ DE PRODUCTION DE FIBRES DE CARBONE ET/OU DE VERRE SECONDAIRES
Publication
Application
Priority
- DE 102012210646 A 20120622
- EP 2013063156 W 20130624
Abstract (en)
[origin: WO2013190145A1] The invention relates to a method for producing secondary carbon fibers and/or glass fibers comprising the following steps: a) comminuting waste parts and/or scrap parts from a carbon-fiber-reinforced plastic, from a glass-fiber-reinforced plastic, or from a mixture of carbon-fiber-reinforced plastics and glass-fiber reinforced plastics, and (b) performing a heat treatment with the comminuted waste parts and/or scrap parts obtained in step a) in an atmosphere containing oxygen, wherein the heat treatment is carried out in such a way that part of the plastic contained in the waste parts and/or scrap parts is decomposed into resinous coke and the rest of the plastic is burned to form gas(es), such that carbon fibers, glass fibers, or a mixture of carbon fibers and glass fibers is obtained, said fibers having 3 to 30 wt% of resinous coke in relation to the total weight of said fibers.
IPC 8 full level
B09B 3/00 (2006.01); B29B 17/02 (2006.01)
CPC (source: EP)
B09B 3/40 (2022.01); B29B 17/02 (2013.01); B29K 2105/06 (2013.01); B29K 2707/04 (2013.01); B29K 2709/08 (2013.01); Y02W 30/62 (2015.05)
Citation (search report)
See references of WO 2013190145A1
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)
DE 102012210646 A1 20131224; EP 2864061 A1 20150429; WO 2013190145 A1 20131227
DOCDB simple family (application)
DE 102012210646 A 20120622; EP 13732882 A 20130624; EP 2013063156 W 20130624