Patent ID: 6440443
Filing Date: 2002-08-27
Classification: A01N

Abstract:
A pestidical formulation prepared according to a process comprising the steps of:a) providing an aqueous phase containing one or more emulsifiers and an antifoam agent; b) providing a water-immiscible phase, said water-immiscible phase comprising cadusafos and an isocyanate monomer; c) emulsifying the water-immiscible phase in the aqueous phase forming a dispersion of water-immiscible droplets in the aqueous phase; and d) adding to the dispersion an aqueous solution of one or more polyfunctional amines, in an amount effective to achieve interfacial polymerization with the isocyanate monomer, thereby forming microencapsules of cadusafos having reduced mammalian toxicity as compared with known aqueous microemulsion cadusafos formulations of an equivalent or lesser cadusafos concentration.