Process for the preparation of shaped articles of stabilized polycarbonate by the devolatilizing injection-moulding or devolatilizing extrusion process

US4627949A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rolf Dhein · Krefeld, DE
• Helmut-Martin Meier · Ratingen, DE
• Hans-Jurgen Meissner · Lüneburg, DE
• Klaus Kircher · Leverkusen, DE
• Udo Oels · Krefeld, DE

Key dates

• Filing date: Aug 27, 1984
• Grant date: Dec 9, 1986
• Expiry date: Aug 27, 2004

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29K2069/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to a process for the preparation of polycarbonate shaped articles from polycarbonates stabilized with phosphanes by the devolatilizing injection-moulding or devolatilizing extrusion process.