PROBLEM TO BE SOLVED: To provide a method of stably providing high insecticidal power by enhancing solubility to a propellant of an insecticidal active ingredient.SOLUTION: There is provided a manufacturing method of a composition for insecticidal aerosol containing an insecticidal active ingredient mainly containing 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl=3-(2-cyano-1-propenyl)-2,2-dimethyl cyclopropanecarboxylate, a propellant, a main solvent and an auxiliary solvent for dissolving the insecticidal active ingredient in the propellant by adding the main solvent into a liquid where the insecticidal active ingredient is dissolved into the auxiliary solvent and dissolving the insecticidal active ingredient into the main solvent and then adding the propellant to obtain the composition for insecticidal aerosol. There is provided a manufacturing method where propylene carbonate is preferably dissolved before dissolving the insecticidal active ingredient into the auxiliary solvent.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】殺虫有効成分の噴射剤に対する溶解性を向上して高い殺虫効力を安定的に得る方法の提供。【解決手段】4-メトキシメチル-2,3,5,6-テトラフルオロベンジル=3-(2-シアノ-1-プロペニル)-2,2-ジメチルシクロプロパンカルボキシレートを主成分とする殺虫有効成分と、噴射剤と、主溶剤と、前記殺虫有効成分を前記噴射剤に溶解させるための補助溶剤とを含有する殺虫エアゾール用組成物の製造方法において、前記殺虫有効成分を前記補助溶剤に溶解させた液体に前記主溶剤を加えて前記殺虫有効成分を前記主溶剤に溶解させ、その後、前記噴射剤を加えることによって前記殺虫エアゾール用組成物を得る殺虫エアゾール用組成物の製造方法。前記殺虫有効成分を前記補助溶剤に溶解させる前に炭酸プロピレンに溶解さておくことが好ましい製造方法。【選択図】なし
