Verfahren zum Abbau eines Vinylpolymers

Details

Veröffentlichungs-Nr.

EP4741451

Anmeldetag

12. November 2024

Veröffentlichung

13. Mai 2026

Rechtsraum

EP

IPC

C08J11/10(BOISART CÉDRIC et al.)

Abstract

A method for degrading a vinyl polymer having an initial molar mass in order to form at least one degradation product having a final molar mass lower than the initial molar mass comprises a) providing a water-based emulsion of the vinyl polymer; b) mixing the water-based emulsion with at least one enzyme-mediator system to obtain a reaction mixture, said at least one enzyme-mediator system comprising at least one multi-copper oxidase chosen among a laccase, a laccase-ferroxidase, a laccase-like multi-copper oxidase or a mixture thereof, and at least one respective mediator, said at least one multi-copper oxidase and said at least one respective mediator being mixed sequentially with the water-based emulsion or provided as a pre-mix preserved under anaerobic conditions, until being mixed with the water-based emulsion; c) stirring the reaction mixture under an atmosphere comprising dioxygen; and d) recovering the at least one degradation product of the vinyl polymer.

Anmelder

Firmen

Centre National de la Recherche Scientifique
Institut National de la Recherche pour l'Agriculture, l'Alimentation et l'Environnement
UNIVERSITE DE BORDEAUX
Institut Polytechnique de Bordeaux
Université d'Aix Marseille

Land

🇫🇷 Frankreich