Sumitomo Chemical Company, Limited

Eriko Takeko

Rei Matsunaga

Toshiro Otsubo

A granular pesticidal composition which comprises a pyrazolinone compound given by the formula (1): wherein Rrepresents a chlorine atom etc.; Rrepresents a chlorine atom etc.; Rrepresents a 1-methylethyl group etc.; and Rrepresents a C1-C4 alkoxy group etc.

Granular pesticidal composition

It is possible to perform microencapsulation of a bioactive substance having a solid form at ordinary temperature in a predetermined wall thickness and particle size without the need of dissolving the solid biologically active substance in any solvent by a method for producing a microcapsule, comprising: heating an aqueous dispersion comprising a dispersion stabilizer, an ionic surfactant, the solid biologically active substance, a polymerization initiator and a radical-polymerizable monomer subjected to ultrasonic irradiation. Therefore, the method enables to design a desired particle readily and it is useful for the microencapsulation.

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Ashiya, Japan

Eriko Takeko