Polyarylene ether sulfone-polymers for membrane applications

US10603640B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Martin Weber · Maikammer, DE
• Christian Maletzko · Altrip, DE
• Joerg Erbes · Karlsruhe, DE
• Tobias Kortekamp · Mannheim, DE
• Bastiaan Bram Pieter Staal · Mannheim, DE
• Thomas Heil · Monsheim, DE

Key dates

• Filing date: May 3, 2018
• Grant date: Mar 31, 2020
• Expiry date: May 3, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/755
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a method of forming a polyarylene ether sulfone polymer by converting a reaction mixture (RG) comprising a dihalogen component (A1), a dihydroxy component (B1) and potassium carbonate (C1) having a volume-average particle size of <25 μm. The present invention further relates to the polyarylene ether sulfone polymers obtainable by said method, to products obtainable from said polyarylene ether sulfone polymer and to membranes formed from said polyarylene ether sulfone polymer.