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:
Apr. 29, 2025
Filed:
Mar. 02, 2023
Totalenergies Onetech, Courbevoie, FR;
Université Claude Bernard Lyon 1 (Ucbl), Villeurbanne, FR;
Centre National DE LA Recherche Scientifique (Cnrs), Paris, FR;
Université Jean Monnet Saint-etienne, Saint-Etienne, FR;
Institut National Des Sciences Appliquées DE Lyon (Insa Lyon), Villeurbanne, FR;
Olivier Lhost, Seneffe, BE;
Pascal Navez, Seneffe, BE;
Yves Trolez, Seneffe, BE;
Philippe Cassagnau, Villeurbanne, FR;
Mohammad Abou-Taha, Saint Genis Pouilly, FR;
Karim Delage, Villeurbanne, FR;
Emmanuel Beyou, Villeurbanne, FR;
TOTALENERGIES ONETECH, Courbevoie, FR;
UNIVERSITÉ CLAUDE BERNARD LYON 1 (UCBL), Villeurbanne, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Paris, FR;
UNIVERSITÉ JEAN MONNET SAINT-ETIENNE, Saint-Etienne, FR;
INSTITUT NATIONAL DES SCIENCES APPLIQUÉES DE LYON (INSA LYON), Villeurbanne, FR;
Abstract
Process of grafting of a polyethylene-containing material to produce a modified polyethylene composition comprising providing a twin screw extruder with one or more thermal regulation devices; a polyethylene-containing material and a grafting agent and extruding the polyethylene-containing material and the grafting agent to obtain a modified polyethylene composition; the step of extruding comprises a thermal treatment of the polyethylene-containing material by self-heating of the material at a maximum barrel temperature Ts ranging from 315° C. to 410° C. in one or more hot zones of the extruder.