Patent · US Active

Method for recycling polyolefin containing waste

US10934410B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Andreas Maurer · Zürich, CH
Martin Schlummer · Ingolstadt, DE
Fabian Knappich · Munich, DE
Tanja Fell · Freising, DE
Arthur Berrang · Freising, DE

Key dates

Filing date	Sep 13, 2017
Grant date	Mar 2, 2021
Priority date	—
Expiry date	Sep 13, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/62
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Disclosed is a method for recycling polyolefin containing waste by using a solvent with a specific Hansen parameter and contacting this mixture with a liquid filtration aid before separating the polyolefin from the mixture. The method includes the steps of mixing the polyolefin containing waste with a solvent having a Hansen parameter δH from 0.0 to 3.0 MPa1/2; contacting this mixture with a liquid filtration aid having a Hansen parameter δH>4.0 MPa1/2; and separating the polyolefin from the mixture.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.