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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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7208099 |
Refrigerant compositions comprising 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane and a hydrofluorocarbon and uses thereof
Disclosed herein are 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane refrigerant or heat transfer fluid compositions further comprising at least one hydrofluorocarbon, which are useful in refrigeration...
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7208100 |
1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane refrigerant compositions comprising a fluoroether and uses thereof
Disclosed here in are refrigerant or heat transfer fluid compositions comprising C 4 F 9 OC 2 H 5 compositions and at least one hydrofluoroether, which are useful in refrigerain or air...
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7208098 |
Lubricating composition containing a blend of a polyol ester and an alkylbenzene
The present invention relates to a lubricating basestock for the blends of hydrofluorocarbon and optionally hydrochlorofluorocarbon refrigerants comprising a blend of (A) at least one alkylbenzene...
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7201855 |
1,1,1,3,3-pentafluorobutane refrigerant compositions comprising fluoroether and uses thereof
Disclosed herein are 1,1,1,3,3-pentafluorobutane refrigerant or heat transfer fluid compositions further comprising fluoroether, which are useful in refrigerain or air conditioning apparatus or as...
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7201982 |
Methods for fuel cell coolant systems
The invention relates to a method for cooling an electrical system comprising circulating in a cooling system of the electrical system a mixture comprising a heat transfer fluid and one or more...
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7198728 |
1-ethoxy-1,1,2,2,3,3,4,4,4,-nonafluorobutane refrigerant compositions comprising a hydrocarbon and uses thereof
The present invention relates to compositions for use in refrigeration and air-conditioning systems comprising 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane and at least one hydrocarbon. Further, the...
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7176169 |
Refrigerator lubricant compositions
A lubricant composition for use in a rotary vane compressor has a base oil component that comprises an alkylbenzene as a major component thereof and a polyol ester as a minor component thereof. In...
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7157020 |
Refrigerant compositions comprising performance enhancing additives
The present invention is related to refrigerant and lubricant compositions containing performance-enhancing additives. The performance enhancing additives are found to improve the energy efficiency...
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7153448 |
1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone compositions comprising a hydrofluorocarbon and uses thereof
Disclosed herein are refrigerant and heat transfer fluid compositions comprising 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone
and at least one hydrofluorocarbon for use in...
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7128133 |
Hydrofluoroether as a heat-transfer fluid
The present invention provides an apparatus comprising a device and a mechanism for heat transfer comprising a hydrofluoroether heat-transfer fluid wherein the heat transfer fluid is represented by...
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7094356 |
1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone refrigerant compositions and uses thereof
The present invention relates to compositions for use in refrigeration and air conditioning systems comprising 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone
and at least one...
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7086240 |
Method and apparatus for measuring and improving efficiency in refrigeration systems
An apparatus for optimizing an efficiency of a refrigeration system, comprising means for measuring a refrigeration efficiency of an operating refrigeration system: means for altering a process...
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7074343 |
1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone refrigerant compositions comprising a hydrocarbon and uses thereof
Disclosed herein are refrigerant and heat transfer fluid compositions comprising 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone
and at least one hydrocarbon. These compositions are...
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7059143 |
Method and apparatus for measuring and improving efficiency in refrigeration systems
An apparatus for optimizing an efficiency of a refrigeration system, comprising means for measuring a refrigeration efficiency of an operating refrigeration system; means for altering a process...
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7052626 |
Fluid compositions containing refrigeration oils and chlorine-free fluorocarbon refrigerants
A fluid composition for a refrigerator, which comprises a chlorine-free fluorocarbon refrigerant and a refrigerator oil, said refrigerator oil consisting essentially of a tetraester of...
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7045490 |
Refrigerating machine oil composition
A refrigerating machine oil composition according to the invention comprises an alicyclic polycarboxylic acid ester compound obtained from the following compounds (a) to (c):
(a) an...
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7018558 |
Method of improving performance of refrigerant systems
A method of improving performance of refrigerant systems such as refrigerators and air conditioners that utilize a refrigerant working fluid. The working fluid consists essentially of a heat...
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7018961 |
Refrigerating machine oil composition for carbon dioxide refrigerant
The invention relates to a refrigerator oil composition for compression refrigerators with carbon dioxide refrigerant therein, such as car air conditioners, refrigerators, freezers, air...
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6998065 |
Fluid compositions containing refrigerator oils and chlorine-free fluorocarbon refrigerants
A refrigerator oil for use in compressors using therein a hydrogen-containing halogenocarbon as a refrigerant, consisting essentially of as a base oil at least one kind of an ester selected from...
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6991744 |
Refrigerant compositions containing a compatibilizer
The present invention provides compositions that are useful for compatibilizing a conventional, non-polar, compression refrigeration lubricant and a hydrofluorocarbon and/or hydrochlorofluorocarbon...
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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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6948922 |
Hermetic compressor and open compressor
The present invention provides a hermetic or open compressor for hydrocarbon refrigerant having high reliability. According to the present invention, in the compressor using hydrocarbon as...
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6936576 |
Refrigerating machine oil, and fluid composition for refrigerating machine
A refrigerating machine oil for a carbon dioxide refrigerant according to the invention is a refrigerating machine oil comprising polyalkylene glycol represented by the following general formula...
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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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6913707 |
Biodegradable functional fluid for mechanic drives
The invention relates to a water-based biodegradable and non-toxic functional fluid for mechanical drives, preferably for use in steam engines. The object of providing such functional fluids for...
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6903055 |
Lubricating oils comprising polyoxyalkylenglycol derivatives
A composition is disclosed which comprises a lubricating oil and a refrigerant, wherein the lubricating oil comprises a polyalkyleneglycol derivative of the formula (I): RX(R a O) x (R b O) y (R c...
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6894010 |
Lubricating oil composition for refrigerating machine
A lubricating oil composition for refrigerators having a viscosity index of 250 or greater, and which contains a base oil component 1 having a kinematic viscosity of 3 mm 2 /s or smaller at 100°...
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6878677 |
Refrigerating machine oil compositions
The invention provides a refrigerator oil composition comprising a base oil of a mineral oil and/or a synthetic oil, and containing (a) a partial ester of a polyalcohol and a fatty acid and (b) an...
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6875730 |
Lubricant for refrigerating machine employing ammonia refrigerant
A lubricant for a refrigerator using ammonia as the refrigerant, which contains an additive selected from antioxidant, anti-wear additive and metal deactivator, and the polyether compound...
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6875370 |
Drop-in Substitutes for dichlorodifluoromethane refrigerant
A group of known refrigerants, (R-227ea, R-124, R-134a, R-143a, R-125, R-E125, R-E143a, R-E227ca2, R-254cb, R-600a, R-142b, R-22, R-290, R-E170, R-1270, R-1216, R-218, R-C318, R-C270), that may be...
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6863722 |
Production of 5-methyl-n-aryl-2-pyrrolidone and 5-methyl-n-alkyl-2-pyrrolidone by reductive amination of levulinic acid with nitro compounds
This invention relates to a process for producing 5-methyl-N-aryl-2-pyrrolidone, 5-methyl-N-cycloalkyl-2-pyrrolidone, and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid...
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6849583 |
Lubricant compositions
A lubricant composition containing an anti-deposition component having an anti-deposition effect which is especially useful for the lubrication of refrigeration compressors and in reducing or...
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6846430 |
Refrigerating machine oil composition for natural refrigerant
This invention describes a refrigerating oil composition for natural substance-based refrigerants which comprises (A) a synthetic oil component comprising a polyether compound having a pour point...
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6846792 |
Hydrofluorocarbon compositions
Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and...
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6843930 |
Composition of refrigerant mixtures for high back pressure condition
There is provided a composition of refrigerant mixtures for high back pressure condition, comprising propane, propylene or 1,1-difluoroethane and, optionally, additive selected from the group...
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6824702 |
Device and method for producing molten salts and use thereof
The invention relates to an apparatus and a process for the preparation of salt melts, and mixtures thereof, by means of a stirred reactor and a tubular reactor, in which the starting materials are...
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6815402 |
Lubricating oil composition containing cyclic organophosphorus compound
A lubricating oil composition which comprises at least one compound selected from specific cyclic organic phosphorus compounds is disclosed. The lubricating oil composition exhibits excellent...
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6774093 |
High viscosity synthetic ester lubricant base stock
A high viscosity synthetic ester base stock of about ISO 68 to 400 is formed from a neopentylpolyol condensed with at least one monocarboxylic acid selected from the group consisting of linear...
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6753356 |
Foaming compositions
Use as foaming agents having a low environmental impact of azeotropic or near azeotropic compositions using difluoromethoxy-bis(difluoromethyl ether) and/or...
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6736991 |
Refrigeration lubricant for hydrofluorocarbon refrigerants
A fluid refrigeration composition is disclosed that comprises a naphthenic mineral oil lubricant, a hydrofluorocarbon refrigerant that is immiscible with the naphthenic mineral oil lubricant, and...
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6734151 |
Process for producing a high-purity oxygenic compound and lubricating oil
A process for efficiently producing a high purity compound having oxygen which has a high volume specific resistance and a lubricating oil comprising the high purity compound having oxygen are...
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6718777 |
Refrigerating apparatus
A working medium is used which is composed of an R32 refrigerant or a mixed refrigerant containing at least 70 wt % of the R32 and a polyvinyl ether oil whose viscosity at 40° C. is 46-82 cst....
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6692654 |
Refrigerating machine oil
Refrigerating machine oils comprising an ester oil for use with a refrigerant containing carbon dioxide are described. The refrigerating machine oils have excellent lubricity, miscibility with a...
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6677284 |
Lubricant composition for ammonia based refrigerants with good seal performance
A problem with refrigeration systems using ammonia as the refrigerant and hydrocarbon lubricants is that the seals/gaskets of the systems have a tendency to harden and shrink. This can cause...
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6667285 |
Lubricating oil for refrigerator, hydraulic fluid composition for refrigerator and method for lubricating of refrigerator
The invention provides a lubricating oil for refrigerators, comprising (a) at least one ester represented by the formula (1) wherein R 1 is C 1 to C 18 straight-chain alkyl or C 3 to C 18 ...
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6666985 |
Polyol ester lubricants for hermetically sealed refrigerating compressors
A high quality lubricant for hermetically sealed domestic air conditioner and refrigerator compressors, especially those using chlorine free hydrofluorocarbon refrigerant working fluids, is...
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6656891 |
Refrigerating machine oil composition
The invention provides a refrigerating machine oil composition by which a capillary tube is hardly clogged when a hydrofluorocarbon type, a hydrocarbon type, an ether type, a carbon dioxide type or...
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6644064 |
Refrigerant and refrigerating device
An object of the present invention is to provide a refrigerant in which an odorant is added, the odorant being compatible with refrigerants and refrigerating device oils, and having no reactivity...
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6632294 |
Corrosion protection of steel in ammonia/water heat pumps
Corrosion of steel surfaces in a heat pump is inhibited by adding a rare earth metal salt to the heat pump's ammonia/water working fluid. In preferred embodiments, the rare earth metal salt...
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