Process for the production of optionally branched polyarylene sulfides

US4537951A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karsten-Josef Idel · Krefeld, DE
• Edgar Ostlinning · Goldkronach, DE
• Wolfgang Koch · Batavia, US
• Ludwig Bottenbruch · Krefeld, DE
• Walter Heitz · Kirchhain, DE

Key dates

• Filing date: Mar 23, 1984
• Grant date: Aug 27, 1985
• Expiry date: Mar 23, 2004

Classification

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

Abstract

The invention relates to a process for the production of optionally branched polyarylene sulfides by reacting dihalogen benzenes in admixture with aromatic polyhalogen compounds and alkali sulfides in polar solvents, the reaction being carried out in the presence of reducing agents.