Controlled release granule with water resistant coating

A controlled release composition containing a water-active material in the form of granules having a protective barrier coating capable of releasing the water-active material under predetermined release conditions, wherein the protective barrier coating comprises a polymer blend of two latex polymer...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Bode, Daniel, Rademacher, Jude Thomas, Zhou, Jian, Ferm, Paul Michael, Robertson, Andrew Alexander, Heidemann, Kurt Randall, Siuta-Cruce, Patricia B
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A controlled release composition containing a water-active material in the form of granules having a protective barrier coating capable of releasing the water-active material under predetermined release conditions, wherein the protective barrier coating comprises a polymer blend of two latex polymers, a method of preparing such a composition, a sprayable solution useful in the preparation of the composition, and the use of the composition for breaking a fracturing fluid.