EP 2864092 A1 20150429 - METHOD FOR MANUFACTURING POLYAMIDE THERMOPLASTIC POLYMER PARTICLES IN THE PRESENCE OF SUPERCRITICAL CO2
Title (en)
METHOD FOR MANUFACTURING POLYAMIDE THERMOPLASTIC POLYMER PARTICLES IN THE PRESENCE OF SUPERCRITICAL CO2
Title (de)
VERFAHREN ZUR HERSTELLUNG VON THERMOPLASTISCHEN POLYMERPARTIKELN IN GEGENWART VON ÜBERKRITISCHEM CO2
Title (fr)
PROCEDE DE FABRICATION DE PARTICULES DE POLYMERES THERMOPLASTIQUE A BASE DE POLYAMIDE EN PRESENCE DE CO2 SUPERCRITIQUE.
Publication
Application
Priority
- FR 1253912 A 20120427
- FR 2013050932 W 20130426
Abstract (en)
[origin: WO2013160624A1] The invention relates to a method for transforming a polyamide thermoplastic polymer, which includes: a step of extruding the polymer in the presence of supercritical CO2, in which the weight ratio of CO2SC relative to the polymer during the extrusion step is 25 wt % to 500 wt %; and a step of comminuting the extruded polymer and recovering the polymer in particle form.
IPC 8 full level
CPC (source: EP)
B29B 9/00 (2013.01); B29B 9/12 (2013.01); B29B 9/14 (2013.01); B29B 2009/125 (2013.01); B29K 2077/00 (2013.01)
Citation (search report)
See references of WO 2013160624A1
Citation (examination)
EP 1923419 A1 20080521 - ASAHI KASEI CHEMICALS CORP [JP]
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 2013160624 A1 20131031; EP 2864092 A1 20150429; FR 2989916 A1 20131101; FR 2989916 B1 20140411
DOCDB simple family (application)
FR 2013050932 W 20130426; EP 13723881 A 20130426; FR 1253912 A 20120427