公开(公告)号：US11692087B2

公开(公告)日：2023-07-04

申请号：US17404491

申请日：2021-08-17

申请人： Total Research & Technology Feluy

发明人： Jose-Maria Pere ,  Antonio Guinovart ,  Armelle Sigwald ,  Laetitia Urbanczyk ,  Martine Slawinski ,  Pascal Charlier ,  Elodie Perche ,  Serge Eon ,  Thierry Marcoux ,  Matthieu Adam-Berret

IPC分类号： B29B17/02 ,  C08L25/06 ,  C08F257/02 ,  C08J11/04 ,  B29B17/00 ,  B29B17/04 ,  B29K25/00

CPC分类号： C08L25/06 ,  B29B17/02 ,  C08F257/02 ,  C08J11/04 ,  B29B2017/0015 ,  B29B2017/0224 ,  B29B2017/0293 ,  B29B2017/042 ,  B29K2025/06 ,  C08F2400/00 ,  C08J2325/06

摘要： 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).