- 专利标题： Process for producing monovinylaromatic polymer incorporating post-consumer recycled polystyrene, monovinylaromatic polymer incorporating post-consumer recycled polystyrene and articles produced thereof
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申请号： US17404491申请日： 2021-08-17
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公开(公告)号： US11692087B2公开(公告)日： 2023-07-04
- 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
- 申请人： Total Research & Technology Feluy
- 申请人地址： BE Seneffe
- 专利权人： TOTALENERGIES ONETECH BELGIUM
- 当前专利权人： TOTALENERGIES ONETECH BELGIUM
- 当前专利权人地址： BE Seneffe
- 代理机构： Conley Rose, P.C.
- 优先权： EP 158333 2017.02.28
- 分案原申请号： US16489231
- 主分类号： B29B17/02
- IPC分类号： B29B17/02 ; C08L25/06 ; C08F257/02 ; C08J11/04 ; B29B17/00 ; B29B17/04 ; B29K25/00
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).
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