Methanolyse eines Mehrschichtigen Körpers mit Polycarbonat und einer Beschichtung mit Urethanbindungen

Details

Veröffentlichungs-Nr.

EP4813633

Anmeldetag

25. März 2025

Veröffentlichung

30. September 2026

Rechtsraum

EP

Abstract

The present invention relates to a process for the recovery of a dihydroxy compound and optionally a vinyl(co)polymer and/or rubber-modified graft polymer from a multi-layer body comprising polycarbonate as a substrate layer and a coating layer comprising urethane bonds by methanolysis using a specific amount of a catalyst. Moreover, the present invention relates to the production of a polymer by polymerizing the dihydroxy compound recovered by the inventive process and the production of a polymer blend by blending the vinyl(co)polymer and/or rubber-modified graft polymer recovered by the inventive process with a further polymer.

Anmelder

Firma

Covestro Deutschland AG

Land

🇩🇪 Deutschland