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Herbicidal composition comprises clomazone microcapsules
专利权人:
ROTAM AGROCHEM INTERNATIONAL CO. LTD
发明人:
JAMES TIMOTHY BRISTOW,YIFAN WU
申请号:
GB201405434
公开号:
GB2509427A
申请日:
2014.03.26
申请国别(地区):
GB
年份:
2014
代理人:
摘要:
A herbicidal composition comprises microcapsules, the microcapsules having a capsule wall of a porous condensate polymer, wherein the microcapsules contain clomazone and a solvent comprises rosin and/or a rosin derivative. In one embodiment the microcapsules are in an aqueous suspension. Also claimed is a method of preparing a herbicidal composition, the method comprises the steps of: providing a water immiscible phase comprising clomazone, an isocyanate and optionally an acetylene carbamide derivative (ACD) cross-linker, dissolved in a rosin solvent system comprising rosin and/or a rosin derivative; providing an aqueous phase comprising one or more surfactants; combining the water immiscible phase and the aqueous phase to form a dispersion of the two phases; thereby forming microcapsules of polyurea containing droplets of the water immiscible phase; and curing the microcapsules.
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