Process for the production of optionally branched polyarylene sulphides with polyhalogenated polyaromatic compound

US4525579A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

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

Key dates

• Filing date: Mar 23, 1984
• Grant date: Jun 25, 1985
• Expiry date: Mar 23, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G75/0268
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a new process for the production of optionally branched polyarylene sulphides from optionally substituted halogen benzenes in admixture with aromatic polyhalogen compounds and alkali metal sulphides in polar solvents, with the addition of reducing agents and other polyhalogenated compounds.