Compositions – Frost-preventing – ice-thawing – thermostatic – thermophoric,...
Patent
1989-05-05
1990-10-02
Lieberman, Paul
Compositions
Frost-preventing, ice-thawing, thermostatic, thermophoric,...
252 76, 106 13, C09K 318, C09K 500
Patent
active
049605313
ABSTRACT:
This invention relates to a composition for melting ice at low temperatures, particularly for use in melting ice from driveways, sidewalks and the like. The composition includes mixtures of the salts, sodium and potassium chloride, urea, and a chemical enhancer (synergist) or trigger. The enhancer which quickens melt rate and effects lower ice-melting temperatures may be an additional inorganic salt, such as a carbonate or another chloride, or an organic compound with ether or hydroxyl groupings such as saccharides, alcohols, glycols, and glucosides.
The invention also includes the method of making the composition which includes the steps for example, of
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patent: 4439337 (1984-03-01), Nimerick et al.
patent: 4501775 (1985-02-01), Parks et al.
patent: 4668416 (1987-05-01), Neal
patent: 4698173 (1987-10-01), Hansen
Connor Margaret B.
Tratnyek Joseph P.
Koos, Inc.
Lieberman Paul
Silbermann James M.
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