MICROENCAPSULATED COMPOSITIONS OF NITRIFICATION INHIBITORS Russian patent published in 2019 - IPC C05C11/00 C05G3/08 

FIELD: agriculture.

SUBSTANCE: inventions relate to agriculture. Composition suspension microcapsules to increase stability, which contains: (a) a suspended phase of a plurality of microcapsules, having a median particle size of about 1 to about 10 mcm, where the microcapsules contain: (1) a microcapsule wall obtained by a polycondensation boundary reaction between the polymer isocyanate and the polyamine to form a polyurea shell; (2) at least one organic nitrification inhibiting compound encapsulated in a polyurea shell, wherein said at least one organic nitrification inhibiting compound is not dissolved in the organic solvent; (3) at least one polymer ultra-hydrophobic compound encapsulated in a polyurea shell; and (b) an aqueous phase which contains a hydrophobic additive of a crystal inhibitor. Method of producing microcapsules suspension composition.

EFFECT: invention enables to deliver nitrification inhibitors, such as, for example, (trichloromethyl)pyridines, having longer stability in field conditions, while preserving the level of effect of non-encapsulated inhibitors.

28 cl, 5 tbl, 4 ex