STP1414: Novel Polymeric Dispersants for Water Dispersible Granules

    Herbert, R
    Development Associate, New Castle, DE

    Pages: 11    Published: Jan 2001


    Abstract

    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.

    Keywords:

    Dispersant, water dispersible granule, styrene acrylic polymer, experimental design, screening method, product development


    Paper ID: STP10723S

    Committee/Subcommittee: E35.22

    DOI: 10.1520/STP10723S


    CrossRef ASTM International is a member of CrossRef.