WATER-DISPERSABLE GRANULATED PESTICIDE COMPOSITION PREPARED BY EXTRUSION METHOD AND A METHOD OF ITS PREPARING Russian patent published in 1997 - IPC

FIELD: agriculture, plant protection. SUBSTANCE: water-dispersable pesticide granules have, wt.-%: active component 0.1-80.0; disperser 0.1-20.0; wetting agent 2.0, not above; disintegrator 0.1-2.0; binding agent 0.1-30.0; water-soluble diluting agent up to 100. Granules can contain gas-evolving system. Active component: herbicide of sulfonylurea or phenylurea derivatives. Binding agent: surface-active substance based on adducts of ethylene oxide with propylene oxide or dinonylphenol. Method of granule preparing involves premix extrusion including granule-containing components at 50-130 C under pressure 20-3000 psi. EFFECT: improved method of preparing, improved quality of composition. 22 cl, 8 tbl