Abstract: A working fluid whose base material is a glycol, characterized in that such working fluid contains a modified silicone oil.

Abstract: Provide a liquid coolant composition whose base material is a glycol, wherein such liquid coolant composition contains: (a) 0.1 to 8 percent by weight of an aliphatic dicarboxylic acid having 8 to 18 carbon atoms or alkali metal salt thereof; (b) 0.1 to 10 percent by weight of an alkyl benzoic acid having 7 to 18 carbon atoms or alkali metal salt thereof; and (c) 0.1 to 5 percent by weight of an aliphatic monocarboxylic acid having 6 to 18 carbon atoms or salt thereof.

Abstract: Provide a liquid coolant composition whose base material is a glycol, wherein such liquid coolant composition contains: (a) 0.1 to 8 percent by weight of an aliphatic dicarboxylic acid having 8 to 18 carbon atoms or alkali metal salt thereof; (b) 0.1 to 10 percent by weight of an alkyl benzoic acid having 7 to 18 carbon atoms or alkali metal salt thereof; and (c) 0.1 to 5 percent by weight of an aliphatic monocarboxylic acid having 6 to 18 carbon atoms or salt thereof.

Abstract: A working fluid whose base material is a glycol, characterized in that such working fluid contains a modified silicone oil.

Abstract: Disclosed is a cooling liquid composition, which has an excellent ability to prevent the corrosion of mainly a metal constituting a cooling system for an internal combustion engine or the like, particularly an iron-based metal, or alumninum or an aluminum alloy, and also can effectively inhibit cavitation damage. The composition contains a glycol as a base material, wherein the composition does not contain p-tert butyl benzoate or an alkali metal salt thereof, but contains (a) 0.05-0.5% by mass of silicic acid or an alkali metal salt thereof, (b) 0.1-8% by mass of sebacic acid or an alkali metal salt thereof, (c) 0.1-10% by mass of toluic acid or an alkali metal salt thereof, and (d) 0.001-0.5% by mass of at least one compound selected from a strontium compound, a magnesium compound, and a calcium compound.

Abstract: A coolant composition for a fuel cell unit, which contains at least one aliphatic alcohol having unsaturated bonds in the molecules having 2 to 20 carbon atoms each. The coolant composition maintains the electrical conductivity of the coolant at 10 ?S/cm or below as well as the fluctuation of the electrical conductivity within the range of 0 to 10 ?S/cm.

Abstract: A coolant composition for a fuel cell unit, which contains at least one aliphatic alcohol having unsaturated bonds in the molecules having 2 to 20 carbon atoms each. The coolant composition maintains the electrical conductivity of the coolant at 10 ?S/cm or below as well as the fluctuation of the electrical conductivity within the range of 0 to 10 ?S/cm.

Abstract: The present invention provides a coolant composition having a glycol as a main component, which prevents iron and aluminum from being corroded, and in particular, has excellent corrosion preventing properties for aluminum and aluminum alloys at high temperatures, and the coolant composition is characterized by containing: (a) 0.1-10 % by weight of at least one component selected from among aromatic monobasic acids and the salts thereof; (b) 0.0001-0.1 % by weight of at least one component selected from among strontium compounds, magnesium compounds and calcium compounds; and (c) 0.01-1.0 % by weight of 2-phosphonobutane-1,2,4-tricarboxylic acid or the salt thereof.

Abstract: The present invention provides a coolant composition having a glycol as a main component, which prevents iron and aluminum from being corroded, and in particular, has excellent corrosion preventing properties for aluminum and aluminum alloys at high temperatures, and the coolant composition is characterized by containing: (a) 0.1-10% by weight of at least one component selected from among aromatic monobasic acids and the salts thereof; (b) 0.0001-0.1% by weight of at least one component selected from among strontium compounds, magnesium compounds and calcium compounds; and (c) 0.01-1.0% by weight of 2-phosphonobutane-1,2,4-tricarboxylic acid or the salt thereof.

Abstract: Coolant compositions for fuel cells having at least one sugar alcohol in a base component that resist oxidation of the base component and the rise of the electric conductivity of the coolant when the fuel cell is in use. Fuel cells including coolant compositions having at least one sugar alcohol in a base component. Methods of making fuel cells including coolant compositions having at least one sugar alcohol in a base component.

Abstract: The invention relates to a coolant composition which is excellent in hard water stability and has excellent corrosion preventing properties for aluminum and aluminum alloys at high temperatures, and the coolant composition has glycol as a main ingredient and is characterized by comprising (a) 0.01-5% by weight of phosphate; (b) 0.0001-0.1% by weight of strontium compound; and (c) 0.01-0.5% by weight of at least one ingredient selected from the group consisting of polymers and copolymers of C4-C6 unsaturated monoethylene dicarboxylic acid or their salts, polymers and copolymers of C4-C6 unsaturated monoethylene monocarboxylic acid or their salts, and copolymers of the above described C4-C6 unsaturated monoethylene dicarboxylic acid or their salts and C4-C6 unsaturated monoethylene monocarboxylic acid or their salts.

Abstract: The present invention provides a coolant composition having a glycol as a main component, which prevents iron and aluminum from being corroded, and in particular, has excellent corrosion preventing properties for aluminum and aluminum alloys at high temperatures, and the coolant composition is characterized by containing: (a) 0.1-10% by weight of at least one component selected from among aromatic monobasic acids and the salts thereof; (b) 0.0001-0.1% by weight of at least one component selected from among strontium compounds, magnesium compounds and calcium compounds; and (c) 0.01-1.0% by weight of 2-phosphonobutane-1,2,4-tricarboxylic acid or the salt thereof.

Abstract: A coolant composition for a fuel cell unit, which contains at least one aliphatic alcohol having unsaturated bonds in the molecules having 2 to 20 carbon atoms each. The coolant composition maintains the electrical conductivity of the coolant at 10 ?S/cm or below as well as the fluctuation of the electrical conductivity within the range of 0 to 10 ?S/cm.

Abstract: A durable antifreeze/coolant composition for coolants for the cooling systems of internal combustion engines is disclosed. The composition is excellent in inhibiting corrosion of metal portions, especially iron and aluminum portions and effectively inhibits cavitation damage. The antifreeze/coolant composition includes about 0.1-8.0% by weight of C6-C12 aliphatic dibasic acid and/or an alkali metal salt thereof and about 0.1-10% by weight of p-toluic acid and/or an alkali metal salt thereof.