Process for the preparation of polyarylene sulphides

US5306805A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Arlt · Hohen Neuendorf, DE
• Wolfgang Alewelt · Krefeld, DE
• Karl-Heinrich Meyer · Krefeld, DE
• Manfred Schmidt · Krefeld, DE
• Erhard Tresper · Krefeld, DE
• Wolfgang Eisermann · Goldkronach, DE

Key dates

• Filing date: Feb 10, 1992
• Grant date: Apr 26, 1994
• Expiry date: Feb 10, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G75/025
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a simplified process for the preparation of polyarylene sulphides with improved product quality from alkali metal sulphides and dihalogenated aromatic compounds, in which the alkali metal sulphides are prepared and reacted in situ.