Patent · US Active

Method for recycling plastic materials and use thereof

US8138232B2 · kind B2 · utility

18Cited by

2References

23Claims

0Family size

Assignee

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

Inventors

Andreas Maeurer · Freising, DE
Martin Schlummer · Ingolstadt, DE
Otto Beck · Baiersbronn, DE

Key dates

Filing date	Jun 8, 2006
Grant date	Mar 20, 2012
Priority date	—
Expiry date	Sep 14, 2026

Classification

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

Abstract

The invention relates to a method for recycling plastic materials which contain at least two polymers, copolymers or blends thereof based on polystyrene. The plastic material is thereby mixed with a solvent for the polymers, copolymers or blends. Subsequently a precipitation is effected by addition of a corresponding precipitant so that then the gelatinous precipitation product can be separated from the further components of the plastic material. The method is used for recycling of any plastic materials, in particular of plastic materials from electronic scrap processing and from shredder light fractions.

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