| 摘要 |
PROBLEM TO BE SOLVED: To provide a microencapsulated agrochemical preparation rich in the intake of agrochemical active ingredient(s) into microcapsules and producible easily, and to provide a method for producing the same. SOLUTION: The method for producing the microencapsulated agrochemical preparation comprises (1) the step of dissolving one or more agrochemical active ingredients and a polymer blend comprising a styrene-divinylbenzene copolymer, poly-ε-caprolactam, polylactic acid and one or more copolymers of polylactic acid and glycolic acid in a solvent incompatible with water, (2) the step of emulsifying and dispersing in water the resultant solution using a homomixer or homogenizer, (3) the step of transpiring the solvent in the resulting dispersion by heating and depressurization to crystallize the agrochemical active ingredient(s) and the polymers, and (4) the step of obtaining the objective solidified compound microencapsulated agrochemical preparation by decantation and/or centrifugal separation. COPYRIGHT: (C)2004,JPO&NCIPI |
