| US 7,537,002 B2 | ||
| Exothermic agent | ||
| Harumi Handa, Tokyo (Japan); and Nobuhiko Takeda, Tokyo (Japan) | ||
| Assigned to Energy Dyne Corporation, Tokyo (Japan) | ||
| Appl. No. 12/278,601 PCT Filed Sep. 25, 2007, PCT No. PCT/JP2007/068535 § 371(c)(1), (2), (4) Date Aug. 07, 2008, PCT Pub. No. WO2008/041542, PCT Pub. Date Apr. 10, 2008. |
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| Claims priority of application No. 2006-271174 (JP), filed on Oct. 02, 2006; application No. 2007-037513 (JP), filed on Feb. 19, 2007; and application No. 2007-124495 (JP), filed on May 09, 2007. | ||
| Prior Publication US 2009/0065733 A1, Mar. 12, 2009 | ||
| Int. Cl. F24J 1/00 (2006.01); C09K 5/00 (2006.01); C06B 33/00 (2006.01) | ||
| U.S. Cl. 126—263.01 [126/263.05; 44/252; 252/70; 149/37] | 2 Claims |
| 1. An exothermic agent comprising, per mass thereof,
more than 30% but not more than 40% of a calcium oxide powder having an average particle size of 75 μm to 150 μm, and
not less than 60% but less than 70% of a mixed aluminum powder in which
(a) an aluminum powder having such a particle size distribution that a particle size of 45 μm pass is 70.0 to 80.0% and a
particle size of 45 to 75 μm is 20.0 to 30.0% and
(b) an aluminum powder having such a particle size distribution that a particle size of 45 μm pass is 60 to 70%, a particle
size of 45 μm is 20 to 30%, a particle size of 63 μm is 7 to 10% and a particle size of 75 μm is 1.0 to 2.0% are mixed at
a mass ratio of 1:2.
|