SUSPENSION CONCENTRATE OF HERBICIDAL COMPOSITION AND PREPARATION METHOD THEREOF Russian patent published in 2012 - IPC A01N43/48 A01N37/18 A01P13/00 

FIELD: chemistry.

SUBSTANCE: invention relates to agriculture. The suspension concentrate of a herbicidal composition contains a combination of two argrochemically active components 2,6-bis-(4,6-dimethoxypyrimidin-2-yl) oxybenzoic acid and 2,6-bis-(4,6-dimethoxypyrimidin-2-yl) sodium oxybenzoate with carbamide in molar ratio of the latter to the active substance equal to 0.93-1.79. The solid phase of the combination of the two agrochemically active components 2,6-bis-(4,6-dimethoxypyrimidin-2-yl) oxybenzoic acid and 2,6-bis-(4,6-dimethoxypyrimidin-2-yl) sodium oxybenzoate undergoes two-step grinding or attrition in aqueous carbamide solution. The ratio of the duration of the first grinding step to the dwell time at the second step is equal to 6-12/1, and oxyethylene diphosphonic acid and a disodium salt of ethylene diamine tetraacetic acid are fed into the second grinding step.

EFFECT: invention reduces corrosion resistance and limiting wetting angle of the composition.

3 cl, 2 tbl, 4 ex