| 摘要 |
<p>PURPOSE:To provide a heat-generating composition having excellent heat=generation properties and a soft structure during and after use, and containing iron, silicic acid, and a filler such as metal halide, silica-alumina, etc., having a specific apparent specific gravity. CONSTITUTION:The objective composition is prepared by compounding (A) iron (pref. cast iron powder finer than 60 mesh), (B) silicic acid (e.g. orthosilicic acid, metasilicic acid, etc.) and/or hydrated sodium silicate, (C) a metal halide (pref. sodium chloride), (D) a filler such as silica.alumina, silica.magnesic, calcium sulfate, etc. and having an apparent specific gravity of <=0.68g/ml, and pref. (E) activated charcoal. The amounts of (A), (B), (C), (D) and (E) are, 20-80(wt)%, 5-50%, 20- 20%, 10-50%, and 0-35%, respectively. USE:At the composition fits well to the body, it is suitable as a chemical body warmer.</p> |
