C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 5/18 (2006.01) A01G 13/06 (2006.01) A01M 1/20 (2006.01) A01N 25/20 (2006.01) A61L 9/02 (2006.01) A61L 9/03 (2006.01) A61M 11/04 (2006.01)
Patent
CA 2414166
Multi-layer reaction mixtures that include exothermic generating particles having a water soluble coating encasing a portion of the particles, a volatile component and, optionally, a buffer, an aqueous solution or both are disclosed. At least two layers of the reaction mixture contain exothermic generating particles and at least one layer of the reaction mixture contains a portion of the exothermic generating particles suspended in a gel that includes the water soluble coating. These multi-layer reaction mixtures are especially suited to generate heat in a controllable manner, so that volatile components can be controllably released to the surrounding environment. Apparatuses and methods that use these multilayer reaction mixtures are also disclosed.
La présente invention concerne des mélanges de réaction multicouches qui incluent des particules génératrices exothermiques comportant un revêtement hydrosoluble renfermant une partie des particules, un composant volatile et, éventuellement, un tampon, une solution aqueuse ou les deux. Deux couches au moins du mélange de réaction contiennent des particules génératrices exothermiques l'une au moins des couches du mélange de réaction contenant une partie des particules génératrices exothermiques en suspension dans un gel qui renferme le revêtement hydrosoluble. Ces mélanges de réaction multicouche conviennent particulièrement au dégagement de chaleur d'une façon contrôlée de façon que les composants volatiles puisent se dégager de façon contrôlée dans l'atmosphère ambiante. L'invention concerne également des appareils et des procédés mettant en oeuvre ces mélanges de réaction multicouches.
Hu Hsin-Yuan
Li Yu-Jun
Mao Mark Hsiang-Kuen
Tamura Haruo
Mbm Intellectual Property Law Llp
The Procter & Gamble Company
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