Process for the preparation of high molecular weight, optionally branched polyarylene sulphide with monomercaptan compound

US4760128A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Ebert · Krefeld, DE
• Karsten-Josef Idel · Krefeld, DE
• Rudiger Schubart · Wittlich, DE

Key dates

• Filing date: Aug 6, 1986
• Grant date: Jul 26, 1988
• Expiry date: Aug 6, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G75/14
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the preparation of high molecular weight, optionally branched polyarylene sulphides with melt viscosities which can be adjusted within a defined range, a high stability of the melt and low corrosion. These polyarylene sulphides are obtained by reacting alkali metal sulphides, if appropriate mixed with alkali metal bisulphides and reaction accelerators, with dihalogenoaromatics and, if appropriate, polyhalogenoaromatics, with the addition of particular monomercapto compounds.