Patent · US Expired

Solid heat-generating composition

US4338098A · kind A · utility

27Cited by
7References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 1, 1980
Grant dateJul 6, 1982
Priority date
Expiry dateApr 1, 2000

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K5/18
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A solid heat-generating composition utilizing the heat of hydration of calcium oxide, comprising calcium oxide and a solid substance supplying water capable of reacting with calcium oxide such as a solid substance having water of absorption, adsorption or crystallization, and an organic compound which yields water by an intramolecular or intermolecular reaction at elevated temperature. The composition can be utilized in various applications utilizing heat generation, for example for thawing and heating frozen foods, controlled releasing of agricultural chemicals such as insecticides or repellents, warming human body, etc.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.