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US 10,119,058 B2Granted
Heat transfer fluid additive composition
AssigneePrestone Products Corporation
InventorsBo Yang, Aleksei Gershun, Peter M. Woyciesjes
Life of this patent
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Abstract
Disclosed herein is a heat transfer fluid additive composition comprising: greater than or equal to 10 weight percent (wt %) of a carboxylic acid, based on the total weight of the composition; an azole compound; and a base, wherein the base is present in an amount sufficient to obtain a pH 8-10.5 when diluted by 50 volume % with water. The heat transfer fluid additive composition can be combined with other components to form a heat transfer fluid. The heat transfer fluid can be used in a heat transfer system.
Claims38
A heat transfer fluid additive composition comprising:
- a salt of a carboxylic acid containing 6 to 20 carbon atoms, wherein the salt of the carboxylic acid is present in a range from about 20 weight percent to about 80 weight percent based on a total weight of the heat transfer fluid additive composition;
- an azole compound;
- a base;
- and
- water in an amount from about 10 weight percent to about 40 weight percent;
- wherein the heat transfer fluid additive composition is free of other solvents and free of inorganic phosphate.
3 more elements
Dependencies are inferred from the claim text.