EP 1353983 A1 20031022 - METHOD FOR RECOVERING MIXED PLASTIC MATTER
Title (en)
METHOD FOR RECOVERING MIXED PLASTIC MATTER
Title (de)
VERFAHREN ZUM AUFBEREITEN EINES KUNSTSTOFFGEMISCHES
Title (fr)
PROCEDE POUR PREPARER UN MELANGE DE MATIERES PLASTIQUES
Publication
Application
Priority
- DE 0104704 W 20011213
- DE 10062437 A 20001215
Abstract (en)
[origin: WO0248244A1] The invention relates to a method for recovering mixed high-molecular polymer matter that is contaminated by low-molecular polymers and other foreign matter. The inventive method comprises the following steps: a) introducing the mixed plastic matter into an organic solvent in which at least one of the high-molecular polymers of the mixed plastic matter can be dissolved at a temperature specific of said polymer; b) maintaining the solvent at a normal pressure and at a working temperature at which none of the high-molecular polymers is dissolved, thereby adjusting a certain weight ratio of the mixed plastic matter to the solvent; c) extracting the low-molecular components during a predetermined dwelling time of the mixed plastic matter in the solvent; and optionally d) removing the purified mixed plastic matter from the solvent.
IPC 1-7
IPC 8 full level
B09B 3/00 (2006.01); C08J 11/08 (2006.01)
CPC (source: EP US)
B29B 17/02 (2013.01 - EP); C08J 11/08 (2013.01 - EP US); B29B 2017/0203 (2013.01 - EP); B29B 2017/0293 (2013.01 - EP); Y02W 30/62 (2015.05 - EP US)
Citation (search report)
See references of WO 0248244A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0248244 A1 20020620; AU 2629002 A 20020624; BR 0116120 A 20031223; CN 1481413 A 20040310; DE 10062437 A1 20020620; EP 1353983 A1 20031022; JP 2004515624 A 20040527; US 2003146547 A1 20030807
DOCDB simple family (application)
DE 0104704 W 20011213; AU 2629002 A 20011213; BR 0116120 A 20011213; CN 01820636 A 20011213; DE 10062437 A 20001215; EP 01995592 A 20011213; JP 2002549770 A 20011213; US 22069003 A 20030109