公开(公告)号：US07081211B2

公开(公告)日：2006-07-25

申请号：US10340993

申请日：2003-01-13

申请人： Yu-jun Li ,  Mark Hsiang-Kuen Mao ,  Haruo Tamura ,  Hsin-Yuan Hu

发明人： Yu-jun Li ,  Mark Hsiang-Kuen Mao ,  Haruo Tamura ,  Hsin-Yuan Hu

IPC分类号： C09K5/16 ,  C09K5/18 ,  C09K3/18 ,  F24J1/00 ,  A61K8/02

CPC分类号： A01M1/2083 ,  A01M1/2061 ,  A01N25/20 ,  A61L2/20 ,  A61L2/232 ,  A61L9/02 ,  A61L9/03 ,  F24V30/00

摘要： Multi-layer reaction mixtures that includes 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. 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. In one such controlled reaction, the reaction components are mixed together and the reaction 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 mixtures of these. Apparatuses and methods that use these multi-layer reaction mixtures are also disclosed.