Patent · US Active

Method for separating differently additivated polymer components and use thereof

US8225937B2 · kind B2 · utility

6Cited by

7References

20Claims

0Family size

Assignee

Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

Martin Schlummer · Ingolstadt, DE
Andreas Maurer · Zürich, CH

Key dates

Filing date	Jun 8, 2006
Grant date	Jul 24, 2012
Priority date	—
Expiry date	Jul 22, 2028

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 separating differently additivated polymers based on polystyrene, the copolymers and/or blends thereof. This method is used in particular when recycling flame-retardant plastic materials, in particular from old electrical appliances. The method is characterised by a density separation with at least one liquid or gaseous separation medium.

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