Process for isolating polyarylene sulphides

US4895930A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Franz Alfes · Krefeld, DE
• Wolfgang Alewelt · Krefeld, DE
• Wolfgang Eisermann · Goldkronach, DE
• Erhard Tresper · Krefeld, DE

Key dates

• Filing date: Jun 30, 1988
• Grant date: Jan 23, 1990
• Expiry date: Jun 30, 2008

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 purifying and isolating polyarylene sulphides. In this process polyarylene sulphides are obtained with a particularly low electrolyte content.