Heat generating body, heat insulating method using the same...

A - Human Necessities – 61 – F

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A61F 7/08 (2006.01) C09K 5/16 (2006.01)

Patent

CA 2573826

A heating element that alleviates the symptoms of shoulder stiffness, backache, muscular fatigue, cramps, excessive sensitivity to cold, etc., finding especially suitable application in alleviation of the symptoms of cramps. There is provided a heating element comprising packing materials and, interposed therebetween, an exothermic composition molding resulting from molding of a moldable exothermic composition wherein excess water is used as a coupling substance, the exothermic composition molding heat sealed at its periphery, characterized in that the packing materials are each composed of a base material and a covering material, and that the base material is substantially planar, having no pocket, and that the packing materials have a bending resistance of <= 100 mm, being nonelastic at at least 25~ to 60~C, and that the packing materials have a rupture strength of >= 500 g/mm2 at 25~C and an elongation at break of >= 30% at 90~C, and that in a plane orthogonal to the direction of thickness of the heating element, there is a region of >= 2 bending resistance ratio between orthogonal directions.

Élément chauffant qui calme les symptômes de raideur dans l'épaule, de mal de dos, de fatigue musculaire, de crampe, de sensibilité excessive au froid, etc., étant particulièrement adapté au soulagement des symptômes de crampes. Cette invention a pour objet un élément chauffant comprenant des matériaux de remplissage et, intercalé entre eux, un moulage de composition exothermique résultant du moulage d'une composition exothermique pouvant être moulée. Ladite composition exothermique utilise l'eau excédentaire comme substance de couplage, et le pourtour du moulage de composition exothermique est thermiquement scellé. L'élément chauffant est caractérisé par le fait que les matériaux de remplissage sont tous composés d'un matériau de base et d'un matériau de recouvrement, et par le fait que le matériau de base est sensiblement planaire, n'ayant pas de poche, et par le fait que les matériaux de remplissage ont une résistance de flexion = 100 mm, ne sont pas élastiques entre 25° au minimum et 60°C, et par le fait que les matériaux de remplissage ont une résistance à la rupture = 500g/mm<sup

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