EP 4114633 A1 20230111 - PROCESS FOR SEPARATING POLYMER MATERIALS FROM AN ASSEMBLY OF ELEMENTS
Title (en)
PROCESS FOR SEPARATING POLYMER MATERIALS FROM AN ASSEMBLY OF ELEMENTS
Title (de)
VERFAHREN ZUR TRENNUNG VON POLYMERMATERIALIEN VON EINER ANORDNUNG VON ELEMENTEN
Title (fr)
PROCÉDÉ DE SÉPARATION DE MATÉRIAUX POLYMÈRES D'UN ASSEMBALGE D'ÉLÉMENTS
Publication
Application
Priority
- FR 2002092 A 20200302
- FR 2021050350 W 20210302
Abstract (en)
[origin: WO2021176174A1] A process for separating polymer materials, comprising the following steps: a) a support (18) at least partially coated with a thermoplastic polymer (20) is provided, said thermoplastic polymer having a given glass transition temperature Tg; b) the temperature of said thermoplastic polymer (20) is reduced to a temperature Tinf lower than said glass transition temperature Tg of said thermoplastic polymer; c) said thermoplastic polymer (20) is mechanically treated at said temperature Tinf in order to detach said thermoplastic polymer from said support; and d) said detached thermoplastic polymer (20) is recovered.
IPC 8 full level
B29B 17/02 (2006.01); B29B 17/04 (2006.01); B29K 27/00 (2006.01); B29K 27/18 (2006.01); B29K 67/00 (2006.01); B29L 31/14 (2006.01)
CPC (source: EP)
B29B 17/02 (2013.01); B29B 17/04 (2013.01); B29B 2017/0203 (2013.01); B29B 2017/0217 (2013.01); B29B 2017/0255 (2013.01); B29B 2017/0416 (2013.01); B29B 2017/0428 (2013.01); B29K 2027/16 (2013.01); B29K 2027/18 (2013.01); B29K 2067/003 (2013.01); B29L 2031/14 (2013.01); Y02W 30/62 (2015.05)
Citation (search report)
See references of WO 2021176174A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3107658 A1 20210903; FR 3107658 B1 20230310; EP 4114633 A1 20230111; WO 2021176174 A1 20210910
DOCDB simple family (application)
FR 2002092 A 20200302; EP 21714930 A 20210302; FR 2021050350 W 20210302