MESO-SIZED CAPSULES USED FOR DELIVERING AGRICULTURAL CHEMICALS Russian patent published in 2014 - IPC A01N25/28 A01N43/22 A01N43/40 A01N43/653 A01N43/70 A01N47/38 

FIELD: chemistry.

SUBSTANCE: invention relates to agriculture. The mesocapsule has a polymer shell and a poorly water-soluble agricultural active ingredient. The active ingredient is at least partially included in the polymer shell. The volume-average diameter of the mesocapsules ranges from about 30 nm to about 500 nm, where the term "about" means an interval of plus or minus 10%. The method includes preparing an oil phase, the oil phase including at least one agricultural active ingredient and one or more polymer precursors capable of reacting to form a shell; adding an aqueous phase, the aqueous phase including water and at least one crosslinker; adding a surfactant to at least one phase selected from the aqueous phase and the oil phase; mixing the oil and the aqueous phases under shear conditions sufficient to form an emulsion having meso-sized droplets with a volume- average diameter of about 500 nm or less; reacting the polymer precursor with the crosslinker to form the mesocapsule. Said composition is deposited on a plant, seeds, growing medium or pests.

EFFECT: obtaining a composition for delivering an agricultural active ingredient containing a mesocapsule.

28 cl, 14 dwg