Herbicidal composition comprises clomazone microcapsules

摘要

A herbicidal composition comprises microcapsules having a polymer shell and containing therein clomazone and a liquid carrier comprising a lipid extracted from an alga. Also claimed is a method of preparing a herbicide composition, the method comprises the steps of: providing a water immiscible phase comprising clomazone, an algae-originating lipid, an isocyanate and optionally an acetylene carbamide derivative (ACD) cross-linker; providing an aqueous phase comprising one or more surfactants; combining the water immiscible phase and the aqueous phase to form a dispersion of the water immiscible phase in the aqueous phase; thereby forming microcapsules of polyurea containing droplets of the water immiscible phase; and curing the microcapsules.