Method for producing solution of polymers functionalized by acid groups by microwave radiation

US6348516B1 · kind B1 · utility

Assignee

• Celanese Ventures GmbH · DE

Inventors

• Thomas Soczka-Guth · Schelklingen, DE
• Helmut Witteler · Monsheim, DE
• Gregor Deckers · Frankfurt, DE
• Georg Frank · Nürnberg, DE
• Kilian Brehl · Hachenburg, DE
• Jürgen Lenze · Frankfurt, DE
• Harald Bönsel · Niedernhausen, DE
• Rüdiger Knauf · Aull, DE

Key dates

• Filing date: Jul 6, 2000
• Grant date: Feb 19, 2002
• Expiry date: Jul 6, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for using microwave irradiation to prepare solutions of polymers functionalized with acid groups The invention relates to a process for preparing aqueous, hydrous and anhydrous solutions of polymers functionalized with acid groups, which comprises using microwave radiation to supply the heat required to prepare the solution. The solutions are suitable as a starting material for producing gas diffusion electrodes, fuel cells and polymer-electrolyte-stabilized platinum nanoparticles.