The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2026
Filed:
Sep. 08, 2022
Compagnie Generale Des Etablissements Michelin, Clermont-Ferrand, FR;
Nuno Pacheco, Clermont-Ferrand, FR;
Pierre Kiener, Clermont-Ferrand, FR;
Pierre Sere-Peyrigain, Clermont-Ferrand, FR;
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand, FR;
Abstract
A process for the purification of a feedstock resulting from a process for the depolymerization of styrene compounds, referred to as feedstock of the purification process, comprises at least a separation step producing an extract rich in light compounds, a raffinate rich in heavy compounds and a stream rich in styrene, and a step of separation of the stream rich in styrene into at least a stream comprising predominantly ethylbenzene, a stream comprising predominantly styrene and a stream of heavy compounds.