SPHERICAL MICROPARTICLES HAVING AN INNER WAX COATING DEPOSITED AROUND BIOLOGICALLY ACTIVE COMPOUNDS

摘要

The invention relates to essentially spherical microparticles comprising a biologically active compound as core substance and a polymeric capsule material, wherein a hydrophobic wax forms a wax film as interlayer on the inner polymeric capsule wall and wholly or partially encapsulates the active ingredient. The invention further relates to a process for the preparation of the microparticles, to the use thereof for the preparation of a composition for controlling plant pests, weeds or animal parasites, as well as to aqueous spray mixtures, water-dispersible granulates or water-dilutable powders containing the claimed microparticles.