초록 ▼

A mixture of an active ingredient such as insecticide, fungicide, antiseptic or the like and a blowing agent is heated indirectly with a heat evolved by contacting an exothermic substance with water to decompose the blowing agent and to volatilize the active agent. The mixture is accommodated in at

A mixture of an active ingredient such as insecticide, fungicide, antiseptic or the like and a blowing agent is heated indirectly with a heat evolved by contacting an exothermic substance with water to decompose the blowing agent and to volatilize the active agent. The mixture is accommodated in at least one compartment of a container while the exothermic substance is accommodated in at least one further compartment provided with water supplying means, said compartments being separated from each other by a partition which provides a heat transferring surface.

대표청구항 ▼

A fumigating apparatus comprising a container having at least one compartment accommodating a mixture of an active ingredient and a blowing agent which is decomposable at a temperature of between about 70°C. and about 300°C. to give off mainly nitrogen gas and at least one further compartment provid

A fumigating apparatus comprising a container having at least one compartment accommodating a mixture of an active ingredient and a blowing agent which is decomposable at a temperature of between about 70°C. and about 300°C. to give off mainly nitrogen gas and at least one further compartment provided adjacent to said compartment and accommodating an exothermic substance which evolves heat by contact with water, the interior of the container being divided with a partition into said compartments, the partition providing a surface for transferring the heat evolved from said exothermic substance to the mixture, the compartment accommodating the exothermic substance being provided with water supplying means. A fumigating method comprising heating indirectly a mixture of an active ingredient and a blowing agent with heat evolved from an exothermic substance which evolves heat by contact with water, thereby decomposing the blowing agent and volatilizing the active ingredient, said blowing agent being decomposable at a temperature of between about 70°C. and about 300°C. to give off mainly nitrogen gas and contacting an object, material or area to be treated with the so generated fumigant.