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:
Sep. 22, 2026
Filed:
Nov. 15, 2022
Basell Poliolefine Italia S.r.l., Milan, IT;
Diego Brita, Ferrara, IT;
Simona Guidotti, Ferrara, IT;
Dario Liguori, Ferrara, IT;
Francesco Menichelli, Ferrara, IT;
Sandor Nagy, Seabrook, TX (US);
Noel C. Hallinan, Loveland, OH (US);
Basell Poliolefine Italia S.r.l., Milan, IT;
Abstract
A process for depolymerizing plastic waste including the steps of: a) providing a melt plastic waste feedstock made from or containing recycled polypropylene and polyethylene; and b) subjecting the melt product obtained in (a) to a temperature ranging from 280° C. to 600° C., thereby obtaining a depolymerization product; wherein the melt product, the depolymerization product, or both are contacted with a catalyst made from or containing a supported heteropolyacid, having a transition metal portion containing transition metals selected from the group consisting of W, Mo, and V and a non-metal portion containing non-metal elements selected from the group consisting of Si, P, and As.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile