| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an exothermic sheet form which can suppress its own hardening involved in the oxidation reaction progress. <P>SOLUTION: The exothermic sheet form comprises an oxidizable metal, a fibrous material, a water-holding agent, moisture, an electrolyte serving as an oxidation auxiliary, and a thiosulfate; wherein it is preferable that the thiosulfate be contained at 0.5-20 pts.mass based on 100 pts.mass of the oxidizable metal. For this exothermic sheet form, the flexural strength scale factor, the ratio of its flexural strength before exothermic reaction to that after ending exothermic reaction, is 20 or less. This exothermic sheet form is obtained by adding the electrolyte and an aqueous solution of the thiosulfate to an intermediate sheet form comprising the oxidizable metal, the fibrous material and the water-holding agent but containing no electrolyte serving as an oxidation auxiliary. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
