US Patent Application 20090266747 - Method for Grading Water-Absorbent Polymer Particles

Application 20090266747 Filed on September 24, 2007. Published on October 29, 2009

Abstract Claims Description Full Text

Inventors

Stueven, Uwe
Funk, Rudiger
Weismantel, Matthias
Schroder, Jurgen
van Esbroeck, Domien

Assignee

BASF SE

US Class

209/235Special applications

Attorney, Agent or Firm

Marshall, Gerstein & Borun LLP

Foreign Documents

06121228.8 EP 09/25/2006

International Class

B07B 4/08

Abstract text

A process for classifying water-absorbing polymer beads, wherein the polymer beads are separated into n particle size fractions by means of at least n screens and n is an integer greater than 1.

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