Total Research & Technology Feluy

Total Petrochemicals Research Feluy

Totalenergies Onetech Belgium

Pascal Charlier

Guy L Debras

Martine Slawinski

Jacques Michel

Philippe J Bodart

Armelle Sigwald

Laetitia Urbanczyk

Mieke Dams

Serge Eon

Antonio Guinovart

Matthieu Adam-Berret

Elodie Perche

Jose-Maria Pere

Thierry Marcoux

José-Maria Pere

Freddy Colonval

Laurent Duranel

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).

Process for producing monovinylaromatic polymer incorporating post-consumer recycled polystyrene, monovinylaromatic polymer incorporating post-consumer recycled polystyrene and articles produced thereof

The invention relates to a process and an installation to produce a monovinylaromatic polymer () comprising post-consumer recycled polystyrene (PCR-PS) wherein the process comprises the steps of mixing the PCR-PS () and the monovinylaromatic monomer () within a dissolver () to dissolve the PCR-PS () in the monovinylaromatic monomer () so as to produce a polymerization mixture (); and a step of filtering the polymerization mixture () that includes continuously redirecting at least a part of the stream of the filtered polymerization mixture () back to the dissolver () and mixing it with the polymerization mixture () so as to continuously reduce the content of insoluble material in the polymerization mixture () contained in the dissolver ().

The present invention relates to a process for producing a multilayer film comprising at least one polyethylene (except high pressure polyethylene) and polypropylene layer, wherein the adhesion between the polyethylene and polypropylene is enhanced without the use of any tie layer by processing the film with a freezing time of less than ten seconds.

Process for producing a polyethylene-polypropylene multilayer blown film

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Evere, Belgium

Pascal Charlier