Abstract: The present invention relates to glycol based heat-transfer fluids exhibiting corrosion inhibition and comprising more than 5 wt. % (by total weight of the composition) of a glycol selected from the group consisting of monoethylene glycol, monopropylene glycol, 1,3-propanediol, glycerol or combinations thereof; and more than 1 wt. % (by total weight of the composition) of a short-chain organic carboxylic acid or salt thereof selected from the group consisting of C2 organic carboxylic acids or salts thereof, C3 organic carboxylic acids or salts thereof and combinations thereof; wherein the combined amount of the glycol and the short-chain organic carboxylic acid or salt thereof is more than 15 wt. % (by total weight of the composition). The invention further relates to concentrates for the preparation of said heat-transfer fluids, to methods for the preparation of said heat-transfer fluids, and to the methods and uses employing said heat-transfer fluids.

Abstract: This invention covers a formulation providing protection against corrosion in liquid and vapor phase. Such formulations are used in applications where engine parts or fuel cell systems are subjected to a “running-in” or “hot-test” prior to final assembly or storage. The invention includes a concentrate as well as a dilute solution. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids increases the period of protection. This enables storage for a longer period when the engine parts are shipped or stored prior to assembling. The use of the described invention pre-conditions the metal surface and provides protection even if afterwards the liquid is almost completely removed.

Abstract: This invention covers a formulation providing protection against corrosion in liquid and vapor phase. Such formulations are used in applications where engine parts or fuel cell systems are subjected to a “running-in” or “hot-test” prior to final assembly or storage. The invention includes a concentrate as well as a dilute solution. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids increases the period of protection. This enables storage for a longer period when the engine parts are shipped or stored prior to assembling. The use of the described invention pre-conditions the metal surface and provides protection even if afterwards the liquid is almost completely removed.

Abstract: The technology of this invention relates to an aqueous heat transfer solution exhibiting enhanced stability as well as thermal conductivity. The solution comprises silicon oxide nanoparticles, to which a freezing point depressant may potentially be added. The solution provides protection against forms of corrosion for use in applications where cooling is critical. The invention also covers the use of a concentrate as well as the dilution made from the concentrate.

Abstract: The technology of this invention relates to an aqueous heat transfer solution exhibiting enhanced stability as well as thermal conductivity. The solution comprises silicon oxide nanoparticles, to which a freezing point depressant may potentially be added. The solution provides protection against forms of corrosion for use in applications where cooling is critical. The invention also covers the use of a concentrate as well as the dilution made from the concentrate.

Abstract: This invention covers a formulation providing protection against corrosion in liquid and vapor phase. Such formulations are used in applications where engine parts or fuel cell systems are subjected to a “running-in” or “hot-test” prior to final assembly or storage. The invention includes a concentrate as well as a dilute solution. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids increases the period of protection. This enables storage for a longer period when the engine parts are shipped or stored prior to assembling. The use of the described invention pre-conditions the metal surface and provides protection even if afterwards the liquid is almost completely removed.

Abstract: This invention covers formulation providing protection against corrosion in both the liquid and vapor phase. Such formulations are used in applications where engine parts or fuel cell systems are subjected to a “running-in” or “hot test” prior to final assembly or storage. The invention includes a concentrate as well as a dilute solution. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids and a silicate dramatically increases the period of protection for both ferrous and aluminum alloys. This enables storage for a longer period when the engine parts are shipped or stored prior to assembling.

Abstract: A toxicological friendly antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze composition comprises from 5 to 80 wt. % of an aqueous freezing point depressant selected from alkali metal salts of acetates, formates, proprionates, adipiates, and succinates, and mixtures thereof; 0.1 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.1 to 10 wt. % of at least one of octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, benzoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water. The composition may be totally free of glycol, or, in an alternate embodiment, possess a glycol:non-glycol base ratio of 1:2 to 1:20.

Abstract: A toxicological friendly antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze composition comprises from 5 to 80 wt. % of an aqueous freezing point depressant selected from alkali metal salts of acetates, formates, proprionates, adipiates, and succinates, and mixtures thereof; 0.1 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.1 to 10 wt. % of at least one of octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, benzoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water. The composition may be totally free of glycol, or, in an alternate embodiment, possess a glycol:non-glycol base ratio of 1:2 to 1:20.

Abstract: This invention relates to a solution that provides protection against forms of corrosion. Such solutions are intended for use in applications where cooling system parts are hot tested or the engine is run-in prior to it being stored and/or assembled in the final vehicle or engine configuration. The invention includes a concentrate as well as a dilute solution made from the concentrate. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids has proven to dramatically increase the period of protection, thus enabling storage for a longer period when the engine parts are shipped or stored prior to assembling. The use of the described invention shows a pre-conditioning of the metal surface and provides protection even if afterwards the liquid is almost completely removed.

Abstract: The technology of this invention relates to a solution that provides protection against forms of corrosion. Such solutions are intended for use in applications where cooling system parts are hot tested or the engine is run-in prior to it being stored and/or assembled in the final vehicle or engine configuration. The invention covers a concentrate as well as a dilute solution made from the concentrate. The synergistic combination of inorganic ammonium derivatives with monocarboxylic or dicarboxylic acids has proven to dramatically increase the protection time, thus enabling storage for a longer period when the engine parts are shipped or stored prior to assembling. When silicate is added to the above formulation, excellent protection from liquid and vapor corrosion is provided on ferrous liner alloys as well as on aluminum alloys. Aluminum alloys are used in engine heads.

Abstract: An aqueous heat transfer fluid comprising a C3 carboxylate freezing point depressant, either solely or in combination with C3-C5 carboxylate freezing point depressants, in combination with C6-C16 organic acid salt corrosion inhibitors, provides an antifreeze/coolant composition wherein the corrosion inhibitors exhibit uniquely enhanced solubility, especially at low temperatures, in synergistic combination with the selected carboxylate freezing point depressants.

Abstract: A toxicological friendly antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze composition comprises from 5 to 80 wt. % of an aqueous freezing point depressant selected from alkali metal salts of acetates, formates, proprionates, adipiates, and succinates, and mixtures thereof, 0.1 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.1 to 10 wt. % of at least one of octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, benzoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water. The composition may be totally free of glycol, or, in an alternate embodiment, possess a glycol:non-glycol base ratio of 1:2 to 1:20.