Polymers for instant dispersions for the herbicide metolachlor and other chloroacetanilides

摘要

The pesticide meotlachlor (a member of Chloracetanilide family) which is a liquid at ambient conditions was converted to a solid product by coprecipitation with agrimer VEMA H-240, maleic acid methyl vinyl ether copolymer. This solid at 1-2 percent in water instantly produced a dispersion stable for > 24 hours and showed 100 percent recovery on standing over a period of 24 hours. This technology is extendable for other members of the pesticide family and other modifications of the polymer. This simple technique also offers several formulation variables such as: