Methods and apparatuses for delivering a volatile component...

C - Chemistry – Metallurgy – 09 – K

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C09K 5/18 (2006.01) A01G 13/06 (2006.01) A01N 25/20 (2006.01) A47J 36/28 (2006.01) A61L 9/02 (2006.01) A61L 9/03 (2006.01) A61M 11/04 (2006.01)

Patent

CA 2414161

Reaction mixtures that include exothermic generating particles having a water soluble coating encasing a portion of the particles, a volatile component and, optionally an aqueous solution, and a buffer. The reaction mixtures are especially suited to generate heat in a controlled manner. In one such controlled reaction, the reaction components are mixed together and the mixture increases in temperature to a Set Temperature within a predetermined time, and the mixture remains at the Set Temperature for a longer period of time. In this manner, volatile components can be controllably released to the surrounding environment. The volatile components can be, for example, a perfume, a fragrance, an insect repellent, a fumigant, a disinfectant, a bactericide, an insecticide, a pesticide, a germicide, an acaricide, a sterilizer, a deodorizer, a fogging agent and mixture of these. Apparatuses and methods that use these reaction mixtures are also disclosed.

La présente invention concerne des mélanges de réaction qui incluent des particules génératrices exothermiques comportant un revêtement hydrosoluble renfermant une portion des particules, un composant volatile, et éventuellement une solution aqueuse et un tampon. Les mélanges de réaction conviennent particulièrement à la génération de chaleur d'une façon contrôlée. Pour réaliser une telle réaction contrôlée, on mélange les composants de réaction ce qui en fait monter la température jusqu'à un palier atteint dans les limites d'un délai défini, à la suite de quoi la température du mélange fait un palier d'une durée plus longue. Cela permet de libérer les composants volatiles de façon contrôlée dans l'environnement ambiant. Ces composants volatiles sont essentiellement des parfums, des agents odorants, des insectifuges, des fumigants, des bactéricides, des insecticides, des pesticides, des germicides, des acaricides, des stérilisants, des désodorants, des agents de nébulisation et certains de leurs mélanges. L'invention concerne également des appareils et des procédés mettant en oeuvre ces mélanges de réaction.

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