Process for the production of high molecular weight, optionally branched polyarylene sulphide with an ester or anhydride of a carboxylic acid

US4631336A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

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

Key dates

• Filing date: Aug 1, 1985
• Grant date: Dec 23, 1986
• Expiry date: Aug 1, 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 a process for the production of high molecular weight, optionally branched polyarylene sulphides from alkali metal sulphides and halogenated aromatic compounds in the presence of from 0.5 to 100 mol %, based on the molar quantity of aromatic dihalogen compounds, of an ester or anhydride of a carboxylic acid.