Process for the preparation of high molecular weight polyarylene sulphide in the absence of water

US4663430A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Edgar Ostlinning · Goldkronach, DE
• Karsten-Josef Idel · Krefeld, DE

Key dates

• Filing date: Jan 2, 1986
• Grant date: May 5, 1987
• Expiry date: Jan 2, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G75/0231
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a process for the preparation of high molecular weight, optionally branched polyarylene sulphides. These may be prepared from alkali metal sulphides and aromatic halogen compounds in a polar organic solvent in the absence of water.