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1. (WO2018158285) PROCESS FOR PRODUCING MONOVINYLAROMATIC POLYMER INCORPORATING POST-CONSUMER RECYCLED POLYSTYRENE, MONOVINYLAROMATIC POLYMER INCORPORATING POST-CONSUMER RECYCLED POLYSTYRENE AND ARTICLES PRODUCED THEREOF

Pub. No.:    WO/2018/158285    International Application No.:    PCT/EP2018/054868
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Thu Mar 01 00:59:59 CET 2018
IPC: C08F 257/02
C08F 112/08
C08L 25/06
C08J 11/04
B01J 8/00
Applicants: TOTAL RESEARCH & TECHNOLOGY FELUY
Inventors: PERE, Jose-Maria
GUINOVART, Antonio
SIGWALD, Armelle
URBANCZYK, Laetitia
SLAWINSKI, Martine
CHARLIER, Pascal
PERCHE, Elodie
EON, Serge
MARCOUX, Thierry
ADAM-BERRET, Matthieu
Title: PROCESS FOR PRODUCING MONOVINYLAROMATIC POLYMER INCORPORATING POST-CONSUMER RECYCLED POLYSTYRENE, MONOVINYLAROMATIC POLYMER INCORPORATING POST-CONSUMER RECYCLED POLYSTYRENE AND ARTICLES PRODUCED THEREOF
Abstract:
The invention relates to a process and an installation to produce a monovinylaromatic polymer (3) comprising post-consumer recycled polystyrene (PCR-PS) wherein the process comprises the steps of mixing the PCR-PS (5) and the monovinylaromatic monomer (7) within a dissolver (9) to dissolve the PCR-PS (5) in the monovinylaromatic monomer (7) so as to produce a polymerization mixture (13); and a step of filtering the polymerization mixture (13) that includes continuously redirecting at least a part of the stream of the filtered polymerization mixture (17) back to the dissolver (9) and mixing it with the polymerization mixture (13) so as to continuously reduce the content of insoluble material in the polymerization mixture (13) contained in the dissolver (9).