Abstract: An object of the present invention is to provide a technique for producing a microcapsule containing a pesticidal compound in a fatty acid ester such as methyl O-acetylricinoleate, which delays the release timing of the pesticidal compound as compared to a conventional microcapsule. Provided is a method for producing a microcapsule, which comprises: (1) keeping a mixture of a pesticidal compound, a compound represented by formula (I): wherein X represents —CH2—CH2— or —CH?CH—, R1 represents a C1-C4 alkyl group, and R2 represents a C1-C4 alkyl group, and a polyisocyanate at 20 to 60° C. for 3 hours or more; (2) adding the mixture to water containing a polyol or a polyamine to prepare liquid droplets in the water; and (3) forming a film of polyurethane or polyurea around the droplets.

Abstract: Water dispersible granules are provided containing (a) an agrochemical active ingredient that is solid at 25° C., (b) a polyoxyalkylene alkyl ether phosphate or its salt, (c) at least one anionic surfactant selected from the group consisting of arylsulfonates or their formaldehyde condensates, ligninsulfonates, and polycarboxylates, and (d) lactose. The granules are water dispersible granules having good disintegrability and dispersibility in water and also having good storage stability. The water dispersible granules can be disintegrated and dispersed in a small amount of water. Accordingly, the water dispersible granules can be mixed with paste fertilizers to produce agrochemical-containing paste fertilizers, which can also be used in paddy fields and are useful water dispersible granules.

Abstract: Water dispersible granules are provided containing (a) an agrochemical active ingredient that is solid at 25° C., (b) a polyoxyalkylene alkyl ether phosphate or its salt, (c) at least one anionic surfactant selected from the group consisting of arylsulfonates or their formaldehyde condensates, ligninsulfonates, and polycarboxylates, and (d) lactose. The granules are water dispersible granules having good disintegrability and dispersibility in water and also having good storage stability. The water dispersible granules can be disintegrated and dispersed in a small amount of water. Accordingly, the water dispersible granules can be mixed with paste fertilizers to produce agrochemical-containing paste fertilizers, which can also be used in paddy fields and are useful water dispersible granules.

Abstract: The present invention is intended to provide a technique for delaying timing for releasing an agricultural chemical compound from a microcapsule formulation which contains the agricultural chemical compound in at least one compound from the group of consisting of ester compounds and aromatic hydrocarbon compounds. A microcapsule formulation produced by the following process is more effectively controlled in release of an agricultural chemical compound therefrom, than any of the existing microcapsule formulations. This production process comprises the steps of (1) maintaining a mixture of an agricultural chemical compound (a), at least one compound (b) selected from the group consisting of ester compounds and aromatic hydrocarbon compounds, except for the compounds of the formula (I): (wherein X represents —CH2—CH2— or —CH?CH—; R1 represents a C1-C4 alkyl group; and R2 represents a C1-C4 alkyl group), and a polyisocyanate (c) at a temperature of from 20 to 80° C.

Abstract: The present invention is intended to provide a technique for delaying timing for releasing an agricultural chemical compound from a microcapsule formulation which contains the agricultural chemical compound in at least one compound from the group of consisting of ester compounds and aromatic hydrocarbon compounds. A microcapsule formulation produced by the following process is more effectively controlled in release of an agricultural chemical compound therefrom, than any of the existing microcapsule formulations. This production process comprises the steps of (1) maintaining a mixture of an agricultural chemical compound (a), at least one compound (b) selected from the group consisting of ester compounds and aromatic hydrocarbon compounds, except for the compounds of the formula (I): (wherein X represents —CH2—CH2— or —CH?CH—; R1 represents a C1-C4 alkyl group; and R2 represents a C1-C4 alkyl group), and a polyisocyanate (c) at a temperature of from 20 to 80° C.

Abstract: Provided is a method for continuously producing a dispersion liquid containing a pest controlling composition. This method includes steps of: dispersing a suspension and a dispersion medium in a first dispersion tank by stirring the suspension and the dispersion medium in the first dispersion tank while continuously supplying the suspension and the dispersion medium into the first dispersion tank, the suspension being formed by suspending a solid pest controlling composition in a water-immiscible organic solvent and the dispersion medium being formed from water or a water solvent containing an alcohol; and stirring a first dispersion liquid in a second dispersion tank while continuously supplying into the second dispersion tank the first dispersion liquid discharged continuously from the first dispersion tank, wherein the stirring of the first dispersion liquid is continued until a dispersion state of the first dispersion liquid becomes stable.

Abstract: An object of the present invention is to provide a technique for producing a microcapsule containing a pesticidal compound in a fatty acid ester such as methyl O-acetylricinoleate, which delays the release timing of the pesticidal compound as compared to a conventional microcapsule. Provided is a method for producing a microcapsule, which comprises: (1) keeping a mixture of a pesticidal compound, a compound represented by formula (I): wherein X represents —CH2—CH2— or —CH?CH—, R1 represents a C1-C4 alkyl group, and R2 represents a C1-C4 alkyl group, and a polyisocyanate at 20 to 60° C. for 3 hours or more; (2) adding the mixture to water containing a polyol or a polyamine to prepare liquid droplets in the water; and (3) forming a film of polyurethane or polyurea around the droplets.

Abstract: A granular pesticidal formulation which comprise (A) 16-40% by weight of a liquid pesticidal component, (B) 30-70% by weight of at least one saccharide, (C) 8-20% by weight of silica, (D) 0.5-6% by weight of bentonite and (E) 5-20% by weight of at least one surfactant, wherein the total weight of the component (C) and the component (D) is 0.9 to 0.4 times of the weight of the component (A) and the weight of the component (D) is 0.6 to 0.05 times of the weight of the component (C) provides a good stability of the aqueous dilution and the application of the dilution causes few stains on the crop surface.

Abstract: This invention relates to a water dispersible granule comprising; (1) a pesticidally active ingredient (2) a copolymer of maleic anhydride and diisobutylene or a salt thereof (3) a compound selected from the group consisting of a polyoxyethylene alkyl phenyl ether Sulfuric acid ester, a polyoxyethylene aryl phenyl ether sulfuric acid ester, a polyoxyethylene alkyl phenyl other phosphoric acid ester, and a polyoxyethylene aryl phenyl ether phosphoric acid ester, or a salt thereof (4) a water soluble carrier selected from the group consisting of water soluble polymers, succharides, and reduction products thereof sulfates, carbonates, phosphates, condensed phosphoric acids and salts thereof, solid organic acids, solid organic acid salts, protein, amino acids and a urea, and (5) a water swellable material, The present composition is excellent in disintegration in water and storage stability, and after the storage for a long time, it keeps excellent property as water dispersible granules such as disintegrati