Patent ID: 8722071

Claim:
A process for the preparation of microcapsules comprising Irgarol, the method comprising dispersing an organic phase containing Irgarol either in dissolved or dispersed state in a polymer solution using a low boiling point solvent, in an aqueous phase containing an emulsifying agent; agitating the above said emulsion at a speed of 800-1200 rpm, for a period of 4-6 hrs, at a temperature of 25-27° C. to evaporate the low boiling point organic solvent to obtain the resultant microcapsules of biocide, separating and washing the resultant product with water followed by drying at a temperature ranging between 25-35° C. to obtain the desired controlled particle size of polymer microcapsules, wherein the polymer is selected from the group consisting of a polystyrene polymer, a polystyrene copolymer, and a poly(methyl methacrylate) polymer.