Patent ID: 7229949
Filing Date: 2007-06-12
Classification: A01N,A61K,B01J,Y10S

Abstract:
1. An encapsulation process for preparing a microencapsulated suspension for a safe delivery system of an agriculturally active material, comprising the steps of: a) preparing an organic phase comprising an agriculturally active water immiscible material and a solvent, in the presence of at least one surfactant; b) preparing an aqueous phase comprising water, a starch, and a protective colloid; c) heating the aqueous phase to obtain a gelatinized aqueous phase followed by cooling; d) adding the organic phase of step (a) into the gelatinized aqueous phase of step (c) to form an oil-in-water emulsion; e) adding an initiator to the oil-in-water emulsion of step (d) in an inert atmosphere; f) adding a vinyl monomer for graft reaction to occur and resulting in obtaining a microencapsulated suspension; g) neutralizing the microencapsulated suspension of step (f) followed by adding a structuring agent.