Prestone Products Corporation Patent applications |
Patent application number | Title | Published |
20140319409 | HEAT TRANSFER FLUID, ADDITIVE PACKAGE, SYSTEM AND METHOD - Disclosed herein is a heat transfer fluid, comprising a hydroxylated carboxylic acid of formula (OH)x(R1)(COOH)y, wherein x is 2 to 10, y is 3 to 10, and R1 is a C2-50 aliphatic group, a C6-50 aromatic group, or a combination thereof; and wherein the hydroxylated carboxylic acid comprises the hydroxylated carboxylic acid, an ester thereof, a salt thereof, an anhydride thereof, or a combination thereof. A heat transfer system comprises an aluminum component, a magnesium component, or an aluminum component and a magnesium component; and the foregoing heat transfer fluid. | 10-30-2014 |
20140119983 | Heat Transfer Fluids and Corrosion Inhibitor Formulations for Use Thereof - Disclosed herein is a heat transfer fluid concentrate comprising: greater than or equal to 90 weight percent of a freezing point depressant; 16 to 80 ppm of magnesium ions; an azole compound; an inorganic phosphate; a carboxylate; and an acrylate based polymer, wherein the heat transfer fluid concentrate has a pH of 7-9.5 and the weight ratio of acrylate based polymer to magnesium ions is 1 to 25. The heat transfer fluid concentrate can be used to make a heat transfer fluid. | 05-01-2014 |
20140070136 | Heat Transfer Fluids and Corrosion Inhibitor Formulations for Use Thereof - Disclosed herein is a heat transfer fluid concentrate comprising: greater than or equal to 85 weight percent of a freezing point depressant, based on the total weight of the heat transfer fluid concentrate; 50 to 2000 ppm of lithium ions; an azole compound; an inorganic phosphate; a carboxylic acid; and an acrylate based polymer, wherein the heat transfer fluid has a pH of 7.0-9.5. The heat transfer fluid concentrate can be used to make a heat transfer fluid. | 03-13-2014 |
20140070135 | HEAT TRANSFER FLUID ADDITIVE COMPOSITION - 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. | 03-13-2014 |
20140070134 | HEAT TRANSFER FLUID CONCENTRATE - Disclosed herein is a heat transfer fluid concentrate comprising greater than or equal to 25 weight percent (wt %), based on the total weight of the concentrate, of glycerin, propylene glycol, or a combination of glycerin and propylene glycol, and greater than or equal to 30 wt %, based on the total weight of the concentrate, of a corrosion inhibitor or combination of corrosion inhibitors. | 03-13-2014 |
20120270129 | HEAT TRANSFER SYSTEM, FLUID, AND METHOD - Disclosed herein is a heat transfer system comprising a circulation loop defining a flow path for a heat transfer fluid, and a heat transfer fluid comprising a liquid coolant, a siloxane corrosion inhibitor of formula R3-Si—[O—Si(R)2]x-OSiR3, wherein R is independently an alkyl group or a polyalkylene oxide copolymer of 1 to 200 carbons, x is from 0 to 100, and further wherein at least one alkyl group and at least one polyalkylene oxide copolymer are present, and a non-conductive polydiorganosiloxane antifoam agent, wherein the conductivity of the heat transfer fluid is less than about 100 μS/cm, and wherein the heat transfer system comprises aluminum, magnesium, or a combination thereof, in intimate contact with the heat transfer fluid. | 10-25-2012 |
20120216834 | COMPOSITION FOR CLEANING A HEAT TRANSFER SYSTEM HAVING AN ALUMINUM COMPONENT - Disclosed herein is a cleaner concentrate comprising: greater than 10 weight percent of a freezing point depressant, 0.5 to 35 weight percent of oxalic acid, and an azole compound, wherein weight percent is based on the total weight of the cleaner concentrate. | 08-30-2012 |