Method for the classification of water absorbent polymer particles

US9751110B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Uwe Stueven · Bad Soden, DE
• Rüdiger Funk · Niedernhausen, DE
• Matthias Weismantel · Bad Orb, DE
• Meinhard Nitschke · Bad Bergzabern, DE
• Filip Mees · Lake Jackson, US
• Leo Van Miert · Kapellen, BE

Key dates

• Filing date: Sep 24, 2007
• Grant date: Sep 5, 2017
• Expiry date: Aug 15, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B07B13/16
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for continuously classifying water-absorbing polymer beads by means of at least one screen, at least one screen having at least one guide device on the screen surface.