Thermogenic system

Details Thermogenic system Thermogenic system

1976-02-05

1977-08-16

Pitlick, Harris A.

Compositions

Frost-preventing, ice-thawing, thermostatic, thermophoric,...

126263, 252 90, 2521883R, 260307F, 260307FA, C09K 300, C09K 318, C09K 500

Patent

active

040425207

ABSTRACT:
A thermogenic system based on exothermic chemical reactions for heating consumer-type products as dispensed from suitable packages. The system includes the redox reactions of hydrogen peroxide as the oxidant and as the reductant compounds of the general oxazolidine formula ##STR1## wherein R and R' may be the same or different and are selected from the group consisting of hydrogen, alkyl of from 1 to 4 carbon atoms, and substituted alkyl such as hydroxyalkyl e.g. hydroxymethyl. The effectiveness of the system can be enhanced by the addition of a catalyst selected from the group consisting of p-toluene sulfonic acid, iron filings, and iron salts of either the ferrous of ferric ions such as sulfates and halides thereof e.g. FeSO.sub.4 and FeCl.sub.3.

REFERENCES:
patent: 2261221 (1941-11-01), Bruner
patent: 3281310 (1966-10-01), Danielson
patent: 3461073 (1969-08-01), Crowell, Jr. et al.
patent: 3535246 (1970-10-01), Crowell, Jr.
patent: 3866800 (1975-02-01), Schmitt
Senkus, Some New Deriv. of Amino-Hydroxy cpds, Journal of Am. Chem. Soc. 67, pp. 1515-1519 (1945).
Bergman, The Oxazolidines vol. 53, 1953, Chemical Reviews, Williams & Wilkins, p. 321.

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