Compositions – Frost-preventing – ice-thawing – thermostatic – thermophoric,...
Patent
1998-12-28
2000-06-27
Green, Anthony
Compositions
Frost-preventing, ice-thawing, thermostatic, thermophoric,...
106 13, 165 10, 165920, C09K 500
Patent
active
060803290
ABSTRACT:
This invention employs discrete, free-flowing particles as substrates for the absorption of water as a phase changing, thermal payload. The aqueous payloads are retained in the particles as they cycle between freezing and thawing, delivering and absorbing sensible and latent heat. Extraparticualate additives in the form of finely divided hydrophobic solids prevent the particles from freezing together into a solid block in preparation for their use as a cooling agent. With free-flowing properties thus secured over a wide temperature range, cooling media of this invention are particularly suitable for healthcare applications.
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patent: 4937412 (1990-06-01), Dobry
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patent: 5282994 (1994-02-01), Salyer
patent: 5314005 (1994-05-01), Dobry
patent: 5417276 (1995-05-01), Dobry
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