| 摘要 |
A flowable herbicide contains as active ingredients a 2-haloacetanilide herbicide and optionally up to 15% by weight of an s-triazine herbicide which are maintained in suspension in an inertliquid carrier by an emulsifier/suspension systemcomprising specified amounts of hydrated amorphous silicon dioxide, polyoxypropylene/polyoxyethylene block copolymer, lower alkyl-substituted C8-10 alkyne diol or ethyl ester thereof and hydrated aluminium silicate. The flowable herbicide also contains an inert, low-freezing point solvent, and preferably a defoamer. The solid components of the flowable herbicide have a particle size no greater than 25 microns. The flowable herbicides are prepared by wet grinding the components of the formulation at 20 DEG C. or below until the solid components of the formulation have the required particle size, preferably after blending in a pre-grind operation to produce a specific particle size distribution of the solids. |
