Process for the manufacture of polyarylene sulphides

US5066776A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Russeler · Krefeld, DE
• Karsten-Josef Idel · Krefeld, DE
• Ernst-Ulrich Dorf · Krefeld, DE
• Wolfgang Alewelt · Krefeld, DE
• Dieter Freitag · Krefeld, DE

Key dates

• Filing date: Aug 13, 1990
• Grant date: Nov 19, 1991
• Expiry date: Aug 13, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G75/0272
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention concerns a process for the manufcture of polyarylene sulphides from alkali sulphide and aromatic dihalogen compounds, whereby the alkali sulphide is produced in situ.