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Solid heat-generating composition

  • US 4,338,098 A
  • Filed: 04/01/1980
  • Issued: 07/06/1982
  • Est. Priority Date: 04/03/1979
  • Status: Expired due to Term
First Claim
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1. A self-contained solid two-component heat-generating chemical system packaged in a form ready for use to generate heat in the form of heat of hydration of calcium oxide by allowing said two-components to contact each other, the first of said two-components comprising granules or powder of calcium oxide, and the second of said two-components comprising granules or powder of a solid substance containing water of crystallization which substance supplies the water required for the hydration of calcium oxide exclusively of any externally supplied water, said ready for use package including at least one partition physically separating the calcium oxide from the solid substance to maintain the calcium oxide and the solid substance out of contact with each other until said at least one partition is removed just prior to use of said heat-generating chemical system.

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