PROBLEM TO BE SOLVED: To obtain an aerosol product and a method for discharging, with which a part of slightly foamed foam becomes a frozen soft sleet state when the aerosol product is discharged, and a refreshing and comfortable sense of use is given when a discharged material is spread over, while flows hardly comes down from a spraying surface and a cooling effect can easily be maintained and effective application to the skin is possible without scattering during discharge.SOLUTION: The aerosol product is packed with an aerosol composition composed of an aqueous stock solution containing a water-soluble polymer and a surfactant and a liquefied gas, in which the aqueous stock solution and the liquefied gas are emulsified. The mixing ratio of the aqueous stock solution to the liquefied gas is 50/50-10/90. In the aerosol product, a spray member to be attached to an aerosol vessel is equipped with an expansion chamber between a spray pathway and a discharge opening. The method for discharging an aerosol product includes a process in which during spray, the aerosol composition is passed through the spray pathway and at least a part of the liquefied gas emulsified with the aqueous stock solution is vaporized in the expansion chamber and (2) a process in which the aerosol composition cooled by the vaporization of the liquefied gas is discharged from the discharge opening.COPYRIGHT: (C)2009,JPO&INPIT【課題】吐出すると小さく発泡し一部が氷結したやわらかいみぞれ状になり、吐出物を塗り拡げるとシャリシャリとした心地よい使用感が得られ、噴射面からの流れ落ちにくく、冷却効果が維持されやすく、吐出時に飛び散らず効果的に塗布できるエアゾール製品およびその吐出方法を開発する。【解決手段】水溶性高分子と界面活性剤を含有する水性原液と、液化ガスとからなり、水性原液と液化ガスとが乳化されてなるエアゾール組成物が充填されたエアゾール製品であって、水性原液と液化ガスとの配合比が50/50~10/90であり、エアゾール容器に装着される噴射部材に、噴射通路と吐出孔の間に膨張室が設けられてなるエアゾール製品。また、噴射時に、エアゾール組成物が噴射通路を通過し、水性原液と乳化されてなる液化ガスの少なくとも一部が膨張室で気化する工程と、(2)液化ガスの気化により冷却されたエアゾール組成物を吐出孔から吐出する工程とを含んでなるエアゾール製品の吐出方法。【選択図】図1
