Sumitomo Chemical Company, Limited

Nobuhito Ueda

Toshiro Ohtsubo

Yoshihiro Takebayashi

Shugo Nishi

Manabu Tagami

A granular pesticidal composition in which a powdery pesticide is aggregated and coated with a thermosetting resin is capable of enabling a pesticidal active ingredient to be controlled-released. Further, the controlled-release pesticidal granule can be produced by mixing a powdery pesticide with a first liquid component serving as a raw material for a thermosetting resin, a process of adding a second liquid component serving as a raw material for a thermosetting resin, and then making the first liquid component react with the second liquid component to produce a thermosetting resin.

Method for producing a pesticidal composition

The present invention provides an agrochemical composition having excellent efficacy, which comprises, as active ingredient, 2-(2,6-difluorophenyl)-4-[4-(1,1-dimethylethyl)-2-ethoxyphenyl]-4,5-dihydrooxazole. The aqueous agrochemical suspension composition comprising 2-(2,6-difluorophenyl)-4-[4-(1,1-dimethylethyl)-2-ethoxyphenyl]-4,5-dihydrooxazole, at least one kind of alcohol selected from the group consisting of ethylene glycol, propylene glycol and glycerin, an inorganic thickener and a dispersant shows excellent efficacy.

Aqueous agrochemical suspension composition and aqueous agrochemical suspension formulation

A solid pesticidal formulation, such as wettable powders, water dispersible granules and water soluble formulations, enveloped in a water soluble substance, such as polyvinyl alcohol and so on, wherein the solid pesticidal formulation comprises at least one water soluble hydroxy compound selected from the group consisting of alkanols, alkylene glycols, glycol monoethers, tri- or more valent alcohols, alcoholamines, hydroxyfatty acids and hydroxyfatty acid esters, or water soluble glycol ether acetates is excellent in stability after preserved.

Enveloped pesticidal formulations

An aqueous herbicidal composition which comprises (a) water-soluble pesticidal ingredient such as herbicidal active ingredient, (b) water-insoluble pesticidal ingredient such as herbicidal active ingredient inhibiting protoporphyrinogenoxidase, (c) at least one selected from nonionic surfactants and anionic surfactants, (d) anionic water-soluble polymer, (e) hydrophobic organic solvent and (f) water is a highly stable aqueous composition in which degradation of the active ingredient is suppressed.

Aqueous pesticidal composition

An aqueous suspension formulation of encapsulated pesticide comprising 3 to 30% by weight of nonionic water-soluble substance which is a solid at room temperature and has 50 to 700 of molecular weight is easy to handle, excellent in preservative stability and highly antiseptic.

Aqueous suspension formulation of encapsulated pesticide

The present invention provides a microencapsulation method of a solid substance and the microencapsulated composition obtained from said method of: (i) preparing a dispersion phase comprising (a) a solution containing a substance which forms a middle layer and (b) a solid substance that is insoluble or difficult to dissolve in said solution, (ii) obtaining a solid substance which has a layer made of the substance which forms the middle layer by phase-separating the substance which forms the middle layer from the solution and (iii) reacting a monomer that is polymelizable by condensation in the presence of the solid substance that has a layer made of the substance which forms the middle layer. The above method can efficiently microencapsulate pharmaceutical active ingredients, pesticidal ingredients, aroma active ingredient and so on that are solid substances and affords an efficacious microencapsulated composition of solid substances.

Method for microencapsulating of a solid substance

A microencapsulation method of a biologically active solid substance that is characterized by polymerizing a monomer that is polymerizable by condensation in a dispersion containing i) a solution containing a nonionic substance and ii) the biologically active solid substance that is insoluble or difficult to dissolve in said solution, wherein the nonionic substance is effective for dispersing the biologically active substance in said solution, is an effective method for producing a microencapsulated composition without aggregation.

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Ashiya, Japan

Nobuhito Ueda