Heat-generating composition and heat-generating body

Details Heat-generating composition and heat-generating body Heat-generating composition and heat-generating body

C - Chemistry, Metallurgy

09

K

C09K 5/00 (2006.01) C09K 5/16 (2006.01)

Patent

CA 2439044

There are provided a heat-generating composition excellent in moldability, shape retaining property and heat-generating characteristics, and a heat-generating body using the same that can maintain the shape of a molded article of the heat-generating composition irrespective to the pressure inside the container bag and has excellent heat-generating characteristics and long-term heat generation maintaining property. It is a non-viscous heat-generating composition having excessive water characterized in that the heat generating composition generating heat in contact with air comprises, as essential components, a water absorbing polymer, a carbon component, a heat-generating promoter, water and a heat-generating substance, has excessive water, and has an incremental degree of viscosity of less than 1,000 cP and a liquid permeation degree of 5 or more.

L'invention concerne une composition chauffante possédant d'excellentes caractéristiques de moulabilité, de rétention des formes et de propriétés chauffantes, et un élément chauffant utilisant cette composition. Dans cet élément chauffant, la forme d'un moulage de la composition chauffante peut être maintenue, en dépit de la pression à l'intérieur du sac dans lequel se trouve la composition. Cet élément a d'excellentes propriétés chauffantes et une rétention à long terme de la chaleur engendrée. Cette composition est une composition chauffante non visqueuse produisant de la chaleur, suite à un contact avec l'air, et elle est caractérisée en ce qu'elle contient comme ingrédients principaux, un polymère d'absorption d'eau, un ingrédient carboné, un accélérateur de chauffage, de l'eau, et une substance de chauffage renfermant un excès d'eau et possédant une viscosité inférieure à 1000 cP et une perméabilité d'au moins 5.

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