SYMPOSIA PAPER Published: 01 January 2001

Novel Polymeric Dispersants for Water Dispersible Granules


High concentration extruded water dispersible granules (WG) can be processed using styrene acrylic and modified styrene acrylic dispersants at formulation concentrations usually found in wettable powder formulations: 3–7 % (w/w). These dispersants have found application with a wide range of active ingredients at concentrations ranging from 75% to >90% (w/w) of technical grade active ingredient. Extruded granule formulations containing these dispersants demonstrate excellent granule disintegration and physical suspension upon dilution both initially and upon extended storage at elevated temperatures. Experimental design techniques have also been identified which dramatically shorten the product development time frame.

Author Information

Herbert, R
Development Associate, New Castle, DE
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Developed by Committee: E35
Pages: 125–135
DOI: 10.1520/STP10723S
ISBN-EB: 978-0-8031-5459-9
ISBN-13: 978-0-8031-2891-0