Method for coating water-absorbing polymer particles

US8663733B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Holger Barthel · Oftersheim, DE
• Martin Wendker · Ludwigshafen am Rhein, DE
• Reiner Witt · St. Leon-Rot, DE
• Karin Flore · Monsheim, DE

Key dates

• Filing date: Mar 17, 2008
• Grant date: Mar 4, 2014
• Expiry date: Jun 30, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2991
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A process for preparing water-absorbing polymer particles by spraying a liquid onto water-absorbing polymer particles by means of at least one thermally insulated and/or trace-heated spray nozzle in a mixer.