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7473716 |
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The...
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7410596 |
Corrosion inhibiting solutions for absorption systems
Anti-corrosion solutions and processes useful for refrigeration processes are proposed. Heteropoly complex anions of transitional metal elements can be added to an absorption solution which...
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7326362 |
Blowing agent, premix and process for preparing rigid polyurethane foam or polyisocyanurate foam
In the present invention, a rigid polyurethane foam or polyisocyanurate foam is prepared by mixing an isocyanate with a premix of a polyol, a blowing agent, a reaction catalyst, a foam stabilizer...
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7288211 |
Hydrofluorocarbon blown foam and method for preparation thereof
The invention relates to the addition of α-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix...
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7270717 |
Compositions and methods for cleaning contaminated articles
Disclosed are compositions and methods for cleaning contaminated articles based on the provision of a zeotropic composition comprising (a) at least one flammable solvent having a boiling point at a...
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7252779 |
Transesterification composition of fatty acid esters, and uses thereof
This invention is a composition that includes a transesterified fatty acid ester resulting from the reaction of a fatty acid ester, in the presence of an acid, with a hydroxyl-containing compound....
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7217373 |
Fluorocarbon, oxygenated and non-oxygenated lubricant, and compatibilizer composition, and method for replacing refrigeration composition in a refrigeration system
The present invention relates to refrigerant compositions comprising a fluorocarbon, an oxygenated lubricant, a non-oxygenated lubricant, and a compatibilizer. The present invention further relates...
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7185511 |
Composition and apparatus for transferring heat to or from fluids
A composition for effecting heat transfer to or from a fluid, the composition comprising a primary adsorbent material, such as activated carbon, for adsorption of a gas, such as carbon dioxide, and...
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7000426 |
Adsorption refrigerating device
An adsorption refrigeration device comprising an evaporator chamber containing a refrigerant liquid that evaporates under the effect of a depression, a connecting device and an adsorption chamber...
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6962059 |
Refrigerating cycle device
To prevent heat transfer inhibition and an increase in pressure loss due to refrigerating machine oil discharged into a cycle, and to provide a compact and highly efficient refrigerating cycle...
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6942820 |
Dimethylpolysiloxane composition
A dimethylpolysiloxane composition comprising at least two dimethylpolysiloxanes selected from dimethylpolysiloxanes represented by formula (1) or formula (2),
wherein m is an integer with...
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6921779 |
Blowing agent enhancers for polyurethane foam production
Rigid polyurethane blowing agent enhancers, methods for using them, and the products produced by these methods are disclosed. The enhancers are low molecular weight alcohols and/or ethers that...
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6899820 |
Fluorocarbon, oxygenated and non-oxygenated lubricant, and compatibilizer composition, and method for replacing refrigeration composition in a refrigeration system
The present invention relates to refrigerant compositions comprising a fluorocarbon, an oxygenated lubricant, a non-oxygenated lubricant, and a compatibilizer. The present invention further relates...
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6841088 |
Fluorocarbon, oxygenated and non-oxygenated lubricant, and compatibilizer composition, and method for replacing refrigeration composition in a refrigeration system
The present invention relates to refrigerant compositions comprising a fluorocarbon, an oxygenated lubricant, a non-oxygenated lubricant, and a compatibilizer. The present invention further relates...
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6784150 |
Composition of pentafluoropropane, pentafluoropropane and water
Disclosed are compositions comprising 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluorobutane and water, said compositions are environmentally desirable for use as blowing agents for polymer...
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6758988 |
Corrosion inhibiting solutions for absorption systems
Anti-corrosion solutions and processes useful for refrigeration processes are disclosed. Heteropoly complex anions of transitional metal elements can be added to an absorption solution which...
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6656381 |
Heat and mass transfer additives for improved aqueous absorption fluids
The rate of water vapor sorption of an absorption cycle cooling and/or heating system using an aqueous alkali metal halide solution as the working fluid is increased by adding to the fluid an...
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6635187 |
Compositions comprising hydrofluorocarbons and their manufacture
A process is disclosed for producing compositions including (a) a compound selected from the group consisting of CHF 2 CF 3 , CHF 2 CHF 2 , CH 2 FCF 3 , CH 3 CF 3 , CH 3 CHF 2 , CH 2 FCF 2 CHF 2 ...
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6627106 |
Salt mixtures for storing thermal energy in the form of heat of phase transformation
Thermal energy in the form of heat of phase transformation can be stored in a ternary salt mixture of the formula: ANO 3 +LiNO 3 +Mg(NO 3 ) 2 .6H 2 O.
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6586488 |
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The...
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6527974 |
Monofunctional ether heat and mass transfer additives for aqueous absorption fluids
An aqueous absorption fluid composition, process and apparatus wherein the absorption fluid contains at least one monofunctional ether heat and mass transfer additive which provides improved water...
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6511610 |
Composition that can be used as a refrigerant
Composition consisting essentially of 55 to 94% R-125, 2.5 to 35% of R-134a and 3.5 to 25% by weight of DME, and its use as a refrigerant in a heat transfer system designed for R-22 and comprising,...
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6502410 |
Nonflammable mixed refrigerants (MR) for use with very low temperature throttle-cycle refrigeration systems
Refrigerants containing HCFC's are replaced with new blends by using R-236fa and R-125, or R-125 with R-245fa, or R-236ea, or R-134a with R-236fa in place of HCFC's. No hardware or oil composition...
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6432319 |
Method for improving the efficiency of absorption heat pumps using a crystallization-inhibiting additive
An absorption heat pump achieves improved efficiency by lowering the low cycle temperature of the circulation fluid. This is accomplished by adding a crystallization-inhibiting compound to the...
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6389841 |
Heat pumps using organometallic liquid absorbents
A family of organometallic liquid absorbents that can have their thermophysical properties tailored for specific applications. Processes to manufacture these liquid absorbents and methods to...
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6361710 |
Absorbent refrigerant composition
An absorbent refrigerant composition containing an aqueous solution of zinc and lithium bromides with an added amount of hydroxide ions. The addition of the hydroxide ions lowers the corrosion rate...
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6348515 |
Blowing agent blends
Foam blowing agents blends of HFC-134a and a pentane selected from n-pentane, i-pentane and i-pentane/cyclopentane are provided, as are polyol premixes and polyurethane foam compositions containing...
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6328908 |
Heat and mass transfer additives for improved aqueous absorption fluids
The rate of water vapor sorption of an absorption cycle cooling and/or heating system using an aqueous alkali metal halide solution as the working fluid is increased by adding to the fluid an...
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6267908 |
Corrosion inhibiting solutions and processes for refrigeration systems comprising halides of a group va metallic element
Anticorrosion solutions useful for refrigeration processes are disclosed. Halides of Group Va metallic elements can be added to alkali metal halide absorption refrigeration solutions to minimize...
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6221276 |
Heat transfer liquid with potassium formate for ventilation and air conditioning installations
The invention relates to a heat transfer liquid for ventilation and air-conditioning installations to be used at low temperatures, in which installations heat is recovered from the exhaust air and...
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6203718 |
Aqueous ammonia corrosion inhibitor
A corrosion-inhibited working fluid for an aqueous ammonia absorption cycle apparatus is charged with an alkali metal base in the concentration range of 0.0003 to 0.0063 moles per liter of water. A...
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6187220 |
Ether heat and mass transfer additives for aqueous absorption fluids
An aqueous absorption fluid composition, process and apparatus wherein the absorption fluid comprises certain ethers providing improved water vapor absorption and thermal transfer in thermal...
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6177025 |
Absorption heat pumps having improved efficiency using a crystallization-inhibiting additive
An absorption heat pump achieves improved efficiency by lowering the low cycle temperature of the circulation fluid. This is accomplished by adding a crystallization-inhibiting compound to the...
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6136875 |
High productivity, low fugitive emission foams and foam processes
A blowing agent for foaming polystyrene consisting essentially of at least one low permeability compound (preferably a volatile organic compound (VOC)), at least one low volatility compound...
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6107267 |
Compositions comprising CF.sub.3 CF.sub.2 CHF.sub.2 and their manufacture
A process is disclosed for recovering HF from a product mixture including HF and CF 3 CF 2 CHF 2 . The process involves (1) distilling the product mixture to remove all products which have a...
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6083416 |
Corrosion inhibiting processes for refrigeration systems
Organic compounds useful as anticorrosion agents in refrigeration systems. The organic compounds can be added directly into the refrigeration systems. Alternatively the organic compound can be...
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6080799 |
Mixtures containing 1,1,1,3,3 pentafluorobutane
Mixtures containing 50 to 99% by weight of 1,1,1,3,3-pentafluorobutane and 1 to 50% by weight of at least one fluorohydrocarbon selected from 1,1,1,2-tetrafluoroethane,...
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6033595 |
Corrosion inhibiting solutions and processes for refrigeration systems comprising halides of a Group Va metallic element
Anticorrosion solutions useful for refrigeration processes are disclosed. Halides of Group Va metallic elements can be added to alkali metal halide absorption refrigeration solutions to minimize...
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6024892 |
Anticorrosion and pH stable alkali metal halide solutions for air dehumidification
Anticorrosion and pH-stabilized brine solutions useful for air dehumidification processes are disclosed. Inorganic and organic buffering agents or mixtures thereof can be added to halide solutions...
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6004476 |
Corrosion inhibiting solutions and processes for refrigeration systems comprising heteropoly complex anions of transition metal elements additional additives
Anticorrosion solutions and processes useful for refrigeration processes are disclosed. Heteropoly complex anions of transitional metal elements can be added to an absorption refrigeration...
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6004475 |
Corrosion inhibiting solutions for refrigeration systems comprising heteropoly complex anions of transition metal elements
Anticorrosion solutions useful for refrigeration processes are disclosed. Heteropoly complex anions of transitional metal elements can be added to alkali metal halide absorption refrigeration...
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5939463 |
High productivity, low fugitive VOC emission foam process
A blowing agent for foaming polystyrene consisting essentially of at least one low permeability volatile organic compound, at least one low volatility non-volatile organic compound and, optionally,...
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5846450 |
Vapor absorbent compositions comprising potassium formate
An absorbent for use in absorption refrigeration systems, air conditioning systems, heat pumps or dehumidifiers comprising a solution of potassium formate. The absorbent is relatively non-toxic and...
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5829259 |
Aqueous absorption fluids
The rate of water vapor sorption of an absorption cycle cooling and/or heating system using an aqueous alkali metal halide or hydroxide solution as the working fluid is increased by adding to the...
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5826436 |
Additive for improving performance and cooling capacity of vapor compression systems
A performance enhancing additive is introduced into a vapor compression system used in cooling and the like. The additive is selected from a class of compounds, e.g. tetraglyme, and added in a...
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5800729 |
Mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms
The invention discloses novel azeotrope-like mixtures of fluorinated compounds which are useful for heating and cooling as heat transfer agents and/or refrigerants. The azeotrope-like mixture...
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5783104 |
Absorption refrigeration compositions having germanium based compounds
A refrigerant/absorbent composition is disclosed which comprises an aqueous solution of at least one absorbent salt, present in an amount sufficient to provide utility of said composition as an...
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5770048 |
Method for removal of acid from compressor oil
An alcohol, specifically ethanol, methanol and isopropanol, is used to remove acid from a refrigeration system, a heat pump or an air conditioner. The alcohol vaporizes acid, primarily inorganic...
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5766504 |
Absorbent composition for an absorption refrigeration system
In order to depress a crystallization temperature of an absorbent composition for an absorption refrigeration system without depressing vapor absorption ability, cesium chloride is added to an...
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5728315 |
Azeotrope-like compositions of trifluoromethane, carbon dioxide, ethane and hexafluoroethane
Azeotrope-like compositions of trifluoromethane, carbon dioxide, ethane, and hexafluoroethane are provided. The compositions of the invention are environmentally desirable for use as refrigerants,...
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