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US 2009/0266747 A1Published application
Method for Grading Water-Absorbent Polymer Particles
AssigneeBASF SE
InventorsUwe Stueven, Rudiger Funk, Matthias Weismantel, Jurgen Schroder, Domien van Esbroeck
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Abstract
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.
Claims16
A process for classifying water-absorbing polymer beads by separating the polymer beads into n particle size fractions, where n is an integer greater than 1, which comprises using at least n screens with decreasing mesh sizes of the n screens in product flow direction.
Dependencies are inferred from the claim text.