Process for the isolation of polyarylene sulphide from salts contained therein

US4734484A · 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: Sep 26, 1986
• Grant date: Mar 29, 1988
• Expiry date: Sep 26, 2006

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 isolation of polyarylene sulphides, polyarylene sulphides with particularly low electrolyte content being obtained.