Compositions – Frost-preventing – ice-thawing – thermostatic – thermophoric,...
Patent
1983-10-11
1986-04-29
Yarbrough, Amelia B.
Compositions
Frost-preventing, ice-thawing, thermostatic, thermophoric,...
2523151, 2523152, 126400, 126452, 16510412, C09K 318
Patent
active
045855722
ABSTRACT:
A reversible liquid/solid phase change composition for storing thermal energy. The composition comprises at least one hydrated inorganic salt selected from a salt or mixture of salts that are subject to segregation of its chemical components during repeated freezing and thawing cycles, and a surface active thickening agent in the form of a cationic surfactant and selected from an amine, salts of the amine, or a quaternary ammonium salt of the amine, wherein the thickening agent is present in the hydrated salt in an amount sufficient to form a micelle structure throughout the hydrated salt to prevent such segregation.
REFERENCES:
patent: 3986969 (1976-10-01), Telkes
patent: 4003426 (1977-01-01), Best et al.
patent: 4187189 (1980-02-01), Telkes
patent: 4209413 (1980-06-01), Kent et al.
patent: 4231885 (1980-11-01), Rueffel
patent: 4426409 (1984-01-01), Roe
Derwent Abstract, Accession No. 81-41849D/23, Herrick et al., U.S. Pat. No. 4,267,879, 5/19/81.
"Solar Heat Energy: Latent Heat Material", vol. 1, pp. 19-20; 22-23; 26 & 28 (1983) George Lane.
Ashae Journal, M. Telkes, Solar Energy, pp. 38-45 (1974).
Lane George A.
Rossow Harold E.
Teot Arthur S.
Juhl Nis H.
The Dow Chemical Company
Yarbrough Amelia B.
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