Preparation of polyarylene sulphide in presence of amino carboxylic acid

US4661584A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karsten-Josef Idel · Krefeld, DE
• Edgar Ostlinning · Goldkronach, DE
• Dieter Freitag · Krefeld, DE
• Wolfgang Alewelt · Krefeld, DE

Key dates

• Filing date: Dec 30, 1985
• Grant date: Apr 28, 1987
• Expiry date: Dec 30, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G75/0254
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to optionally branched polyarylene sulphides and a process for the production thereof in a polar solvent, from 0.2 to 100 mole %, based on the aromatic dihalogen compounds, of an amino acid being added to the reaction mixture.