REVERSE-PHASE MICROCAPSULES FOR ACTIVE INGREDIENTS, SIMPLIFIED PROCESS OF MANUFACTURE THEREOF AND COMBINED FORMULATIONS WDG-CS, ZC, EC-SC AND CX

摘要

This invention relates to microcapsules and processes of microencapsulation of water soluble or water dispersible compounds by reverse-phase microencapsulation, referred to agrochemicals but not as a limiting feature, and how to combine them with other oil soluble or oil dispersible compounds in suitable formulations for agriculture, in a industrially viable process that yields tiny microcapsules (<5-10 µm, preferably) and very homogeneous distribution of particle size, and overall good performance of the formulation. Further, multiple combinations of this reverse-phase microcapsules are disclosed, being specially notorious the combination with normal-phase microcapsules in order to create a Capsule Mixed Suspension (CX) where an outer oil -or alternatively water- phase contains microcapsules of two types: those with a core of water -and actives dissolved or dispersed therein- and those with a core of oil -and actives dissolved or dispersed therein-. Water Dispersable Granules (WDG) and Emulsion Concentrates (EC) and suspension concentrates (SC) combinations with the reverse phase microcapsules are also successfully performed, providing a novel concept of combinations of oil soluble with water soluble microencapsulated active ingredients.