| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition, excellent in disintegrating properties and having a high granule hardness by including an agrochemically active ingredient, an Na salt of a formalin condensate of naphthalenesulfonic acid, an Na salt of an alkylnaphthalenesulfonic acid and potassium chloride therein. SOLUTION: This composition is obtained by pulverizing a mixture containing (A) one or more agrochemically active ingredients [e.g. an insecticide (methomyl, etc.), a germicide (captan, etc.), or a herbicide (trifluralin, etc.)], (B) 10-20 wt.% Na salt of formalin condensate of naphthalenesulfonic acid, (C) 2.5-10 wt.% Na salt of an alkylnaphthalenesulfonic acid and (D) 20-60 wt.% potassium chloride with a pulverizer, regulating the average particle diameter of the ingredient A to at least <=10μm, charging the resultant pulverized material into a kneader, then adding a proper amount of water thereto, sufficiently kneading the mixture, extruding the kneaded material through a screen having 0.5-1.0 mm hole diameter and drying the extruded material until the residual moisture content is reduced to 1-3%.
|
