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| Number | Title | Issue Date |
| 8137579 | Non-aqueous heat transfer fluid and use thereof The present invention is directed to a heat transfer system comprising a heat transfer fluid. The heat transfer fluid comprising non-buffered propylene glycol, and at least one propylene glycol soluble additive selected from the group consisting of a molybdate salt,... | 03/20/2012 |
| 8062545 | Antifreeze concentrate, coolant composition, and preparation thereof An antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze concentrate composition comprises from 50 to 99.8 wt. % of a glycol-based freezing point depressant selected from the group of: alkylene glycols, glycol monoet... | 11/22/2011 |
| 8057695 | Antifreeze concentrate and coolant compositions and preparation thereof 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, ... | 11/15/2011 |
| 8003004 | Heat transfer apparatus and methods including hydrofluorocarbonates Provided is an apparatus for heat transfer that includes a device and a mechanism for transferring heat to or from the device, comprising using a heat transfer fluid, wherein the heat transfer fluid includes a hydrofluorocarbonate. Also provided is a method for tran... | 08/23/2011 |
| 7981314 | Corrosion inhibitor formulations with improved performance, lower toxicity and reduced manufacturing hazards Aqueous corrosion inhibitor compositions, preferably storage-stable, useful in acidic cleaning solutions for cleaning the surfaces of metal, comprising reaction products of at least one rosin amine component, at least one non-flammable liquid ketone component, at le... | 07/19/2011 |
| 7922931 | Low-melting point heat transfer fluid A low-melting point, heat transfer fluid comprising a mixture of LiNO3, NaNO3, KNO3, NaNO2 and KNO2 salts where the Li, Na and K cations are present in amounts of about 20-33.5 mol % Li, about 18.6-40 mol % Na, ... | 04/12/2011 |
| 7828990 | Low-melting point heat transfer fluid A low-melting point, heat transfer fluid made of a mixture of five inorganic salts including about 29.1-33.5 mol % LiNO3, 0-3.9 mol % NaNO3, 2.4-8.2 mol % KNO3, 18.6-19.9 mol % NaNO2, and 40-45.6 mol % KNO2. The... | 11/09/2010 |
| 7828989 | Heat transfer medium composition The present invention provides a pH stabilizing heat transfer medium composition comprising a main component of water, glycol, alcohol or glycol ether, and a pH buffer agent. The pH buffer agent is comprised of an alicyclic compound where a single ring-constituting ... | 11/09/2010 |
| 7820066 | Fluid composition having enhanced heat transfer efficiency A fluid composition includes a coolant and a plurality of nanoparticles dispersed within the coolant. The plurality of nanoparticles includes glass, silica, pumices, metal compounds adapted to react with chloride in the coolant, and/or mixtures thereof. The pluralit... | 10/26/2010 |
| 7790054 | Antifreeze concentrate and coolant compositions and preparation thereof An antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze concentrate composition comprises from 50 to 99 wt. % of a glycol-based freezing point depressant selected from the group of: alkylene glycols, glycol monoethe... | 09/07/2010 |
| 7727414 | Heat transfer fluids with carbon nanocapsules A heat transfer fluid with carbon nanocapsules. The heat transfer fluid comprises a fluid and a plurality of carbon nanocapsules, uniformly dispersed in the fluid, in an amount of 0.05 to 10 parts by weight, based on 100 parts by weight of the heat transfer fluid. P... | 06/01/2010 |
| 7713435 | Heat exchange fluids comprising amine carboxylates Carboxylate salts of amines are used as components of heat exchange fluids. The amines may have a ratio of N to C of 1:0 to 1:12 and the carboxylate anion may be derived from an acid of the formula H(CH2)0-3COOH. A preferred monoamine heat exch... | 05/11/2010 |
| 7704406 | Glycol-free aqueous antifreeze compositions comprising dicarboxylic acid salts The present invention relates to an aqueous antifreeze composition comprising 10 to 50% by weight of one or more dicarboxylic acids, preferably aliphatic dicarboxylic acids having 4 to 12 carbon atoms in the form of the alkali metal, ammonium or alkaline earth metal... | 04/27/2010 |
| 7645394 | Antifreeze composition comprising benzimidazole and triazine The antifreeze of the present invention is including propylene glycol, first material, and second material. The first material is normal aliphatic dicarboxylic acid in which number of carbon atoms is from 10 to 12, salt of the normal aliphatic dicarboxylic acid, or ... | 01/12/2010 |
| 7638069 | Potassium propionates for use as freezing point depressants and corrosion protection in heat transfer fluids 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 sa... | 12/29/2009 |
| 7608198 | Heat transfer compositions with high electrical resistance for fuel cell assemblies The present invention relates generally to heat transfer compositions. More particularly, the present invention relates to heat transfer compositions with high electrical resistance for use in power-generating equipment or in engines. Such compositions are particula... | 10/27/2009 |
| 7588694 | Low-melting point inorganic nitrate salt heat transfer fluid A low-melting point, heat transfer fluid made of a mixture of four inorganic nitrate salts: 9-18 wt % NaNO3, 40-52 wt % KNO3, 13-21 wt % LiNO3, and 20-27 wt % Ca(NO3)2. These compositions can have liquidus tempe... | 09/15/2009 |
| 7540974 | Antifreeze/coolant composition An antifreeze/coolant composition, comprising a) a base material such as water, alcohol, glycol and glycol ether; b) a fluorine compound and c) an inorganic acid. ... | 06/02/2009 |
| 7481948 | Heat transfer compositions with high electrical resistance for fuel cell assemblies The present invention relates generally to heat transfer compositions. More particularly, the present invention relates to heat transfer compositions with high electrical resistance for use in power-generating equipment or in engines. Such compositions are particula... | 01/27/2009 |
| 7462295 | 1,3,5-benzene tricarboxylic acid coolant composition A coolant composition having anticorrosion properties against both aluminum and magnesium is provided. A coolant composition comprises a melting point depression agent selected from glycols and alcohols as the main component, and it contains a corrosion inhibitor se... | 12/09/2008 |
| 7452480 | Heat exchange fluids Carboxylate salts of amines are used as components of heat exchange fluids. The amines may have a ratio of N to C of 1:0 to 1:12 and the carboxylate anion may be derived from an acid of the formula H(CH2)0-3COOH. A preferred monoamine heat exch... | 11/18/2008 |
| 7452479 | Chemical base for fuel cell engine heat exchange coolant/antifreeze comprising 1,3-propanediol A nontoxic fuel cell engine coolant which has an electrical resistivity of greater than 250 kOhm-cm, a boiling point of greater than 90° C., a freezing point of less than −40° C., a thermal conductivity of greater than 0.4 W/m-k, a viscosity of less than 1 cPs a... | 11/18/2008 |
| 7419617 | Coolant comprising azole derivatives for cooling systems in fuel-cell drives Methods for cooling a fuel cell include providing in a fuel cell coolant system an aqueous fuel cell coolant composition having an initial electrical conductivity of at most 50 μS/cm. The fuel cell coolant compositions include an alkylene glycol and water solution,... | 09/02/2008 |
| 7419618 | Coolant comprising azole derivatives for cooling systems in fuel-cell drives An antifreeze concentrate for cooling systems in fuel-cell drives which gives ready-to-use aqueous coolant compositions having a conductivity of at most 50 μS/cm, based on alkylene glycols or derivatives thereof and containing one or more five-membered heterocyclic... | 09/02/2008 |
| 7416679 | 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone refrigerant and heat transfer compositions comprising a fluoroether Compositions of 1,1,1,2,2,4,5,5,5-nonafluoro-4(trifluoromethyl)-3 pentanone can be used in heat transfer refrigeration and air conditioning systems. The compositions may be in combination with fluoroethers. The compositions may be azeotropic or near azeotropic. ... | 08/26/2008 |
| 7410597 | Thermally conductive material A thermally conductive material includes a supercritical fluid and a number of carbon nanotubes incorporated in the supercritical fluid. The supercritical fluid may be selected from a group consisting of carbon dioxide, water, ammonia, ethane, ethane, nitrous oxide,... | 08/12/2008 |
| 7410598 | Chemical base for fuel cell engine heat exchange coolant/antifreeze A nontoxic fuel cell engine coolant which has an electrical resistivity of greater than 250 kOhm-cm, a boiling point of greater than 90° C., a freezing point of less than −40° C., a thermal conductivity of greater than 0.4 W/m-k, a viscosity of less than 1 cPs a... | 08/12/2008 |
| 7407600 | Heat-transfer systems An improved system for transferring heat, utilizing diols, specifically 1,3-propanediol (PDO). The system reduces the energy consumption, maintenance costs, corrosion, toxicity, and the risk of fire associated with such heat-dependent processes. Unlike traditional h... | 08/05/2008 |
| 7404911 | Heat-transfer media having improved thermal stability and based on higher polyglycols The present invention relates to heat-transfer concentrates for solar installations, containing a) from 92 to 99% by weight of at least one polyglycol of the formula R—O—(CH2—CH2—O)n—H, in which n is an integer... | 07/29/2008 |
| 7393464 | Cooling agents for cooling systems in fuel cell drives The invention relates to antifreeze concentrates for cooling systems in fuel cell drives, from which are produced ready-to-use aqueous cooling agent compositions having a maximum conductivity of 50 μs/cm, based on alkylene glycols or the derivatives thereof, and co... | 07/01/2008 |
| 7387747 | Method of making thermal interface material (TIM) with carbon nanotubes (CNT) According to embodiments of the present invention, a very thin thermal interface material (TIM) is developed, which is composed of carbon nanotubes, silicon thermal grease, and chloroform. The carbon nanotubes and chloroform comprise the filler and the silicone ther... | 06/17/2008 |
| 7381346 | Thermal interface material A thermal interface material is for being applied to the contact surfaces to eliminate the air interstices between the heat dissipating apparatus and the electronic component in order to improve heat dissipation of the electronic component. The thermal interface mat... | 06/03/2008 |
| 7374698 | Nanometer heat-conducting water solution for use in car cooling system A nanometer heat-conducting water solution for use in a car cooling system is disclosed. The nanometer heat-conducting water solution is formed by mixing a AlO2 solution (1.1 vol %) having 3-10 nanometer scale materials with a TiO2 solution (1.... | 05/20/2008 |
| 7371334 | Cooling agents for cooling systems in fuel cell drives containing azole derivatives An antifreeze concentrate for cooling systems in fuel-cell drives which gives ready-to-use aqueous coolant compositions having a conductivity of at most 50 μS/cm, based on alkylene glycols or derivatives thereof and containing one or more five-membered heterocyclic... | 05/13/2008 |
| 7358215 | Quaternary ammonium salts as thickening agents for aqueous systems This invention relates to the use of alkyl amido quaternary ammonium salts, and formulations thereof, as thickening agents in aqueous based fluids, especially those used in oil field applications. The quaternary ammonium salts of the present invention exhibit improv... | 04/15/2008 |
| 7326368 | Fluid in liquid state containing dispersed nano-particles of metal or the like Nano-particles 1 of a metal or the like are dispersed in a liquid fluid 2. Thereby, the reactivity or toxicity of the liquid fluid can be reduced when the liquid fluid has reactivity or toxicity. The flow resistance of the liquid fluid can be raised, a... | 02/05/2008 |
| 7326670 | Well service fluid and method of making and using the same A well service fluid comprising one or more anionic viscoelastic surfactants and one or more polymers is described. The fluids can contain an aqueous or non-aqueous fluid and/or a buffer for adjusting the pH of the fracturing fluid. The well service fluid can be use... | 02/05/2008 |
| 7327039 | Nanoparticle filled underfill The invention provides electronic articles and methods of making said articles. The electronic articles comprise an electronic component bonded and electrically connected to a substrate using an underfill adhesive comprising the reaction product of a thermosetting r... | 02/05/2008 |
| 7309453 | Coolant capable of enhancing corrosion inhibition, system containing same, and method of manufacturing same A coolant capable of enhancing corrosion inhibition includes a potassium formate solution having a first concentration of a polyphosphate salt and a second concentration of dicyandiamide. In one embodiment, such a coolant may provide corrosion inhibition that is esp... | 12/18/2007 |
| 7306750 | Carboxylate salts in heat-storage applications The application of carboxylate salts for storing thermal energy is disclosed. The invention is directed to methods for the storage and use of thermal energy comprising contacting mixtures of alkali metal salts or alkali earth metal salts of carboxylic acids, storing... | 12/11/2007 |
