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6495060 |
Refrigerant compositions
A composition comprising (A) 1,1,2,2,3-pentafluoropropane(CF 2 HCF 2 CFH 2 ) and (B) at least one hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane (CF 3 CH 2 CF...
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6495061 |
Refrigerant for providing ultra-low temperature
A mixed refrigerant comprising one member selected from R-23, R-116 and a mixture thereof and one member selected from propane, butane and a mixture thereof. The mixed refrigerant allows cooling...
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6486114 |
Azeotrope-like composition of pentafluoropropane and a perfluorinated fluorocarbon having 5 to 7 carbon atoms or N-methylperfluoromoropholine or N-ethylperfluoromorpholine
Azeotrope-like compositions comprising pentafluoropropane and a perfluorocarbon having 5 to 7 carbon atoms or N-methylperfluoromorpholine OR N-ethylperfluoromorpholine are stable and have utility...
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6478983 |
Lubricating oil for compression refrigerator and refrigerating/air conditioning apparatus using the same
There is obtained a lubricating oil having good solubility with both HFC refrigerant and contaminants by adding PAG having a viscosity of not more than 70 cSt (40° C.) to a synthetic lubricating...
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6467277 |
Cold accumulating material, method of manufacturing the same and refrigerator using the material
A cold accumulating material comprising a number of magnetic particles mainly composed of oxide, wherein an average value of equivalent circle diameters of crystal grains constituting the magnetic...
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6454960 |
Refrigerator using a polyvinyl ether refrigerator oil
An object of the present invention is to obtain a good refrigerator using polyvinyl ether oil as a refrigerator oil, which is compatible with a hydrofluorocarbon type refrigerant not containing...
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6426019 |
Variable load refrigeration system particularly for cryogenic temperatures
A method for generating refrigeration, especially over a wide temperature range including cryogenic temperatures, wherein a non-toxic, non-flammable and low or non-ozone-depleting mixture is formed...
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6416683 |
Compositions of a fluoroether and a hydrofluorocarbon
This invention relates to compositions that include at least one fluoroether and at least one hydrofluorocarbon. Included in this invention are compositions of a cyclic or acyclic hydrofluoroether...
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6406642 |
Polyether-containing composition suitable for use in a refrigerator
A lubricating oil for freezers, which is made of a polyether represented by the general formula (1): R 1 —[X—OR 4 ] 5 , wherein R 1 represents an s-valent group having an aromatic nucleus, X...
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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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6363741 |
Refrigerant composition and refrigerating apparatus
A refrigerant composition comprising difluoromethane (R-32), pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), and n-pentane, preferably prepared by mixing n-pentane preliminarily in...
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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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6337033 |
Refrigerating compositions based on fluoroethers and difluoromethane
Azeotropic or near-azeotropic composition essentially consisting of: 35-99.1% by weight of CH 2 F 2 (R 32), difluoromethane, 0.1-65% by weight of CHF 2 —O—CF 3 ,...
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6336333 |
Refrigerant and method of use in refrigeration systems
A refrigerant mixture. The mixture of propane and butane may be advantageously used as a substitute for R-12, thus eliminating the use of ozone depleting R-12 refrigerant. Ideally, the mixture is...
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6327866 |
Food freezing method using a multicomponent refrigerant
A method for providing refrigeration, such as to an insulated enclosure for food freezing, wherein a defined hydrocarbon-containing multicomponent refrigerant fluid undergoes a phase change coupled...
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6328907 |
Azeotrope comprising pentafluoropropane and hydrogen fluoride and method for separating and purifying pentafluoropropane
There is provided an azeotropic mixture consisting substantially of 1,1,1, 3,3-pentafluoropropane and hydrogen fluoride. Further, there is provided a process of separating/purifying R-245fa and/or...
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6322719 |
Refrigerating oil composition
A refrigerating oil composition which exhibits excellent lubrication properties when used in combination with certain types of coolant, such as a hydrofluorocarbon coolant, which may serve as...
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6303667 |
Foaming agents containing liquid carbon dioxide
A blowing agent composition includes a blowing agent consisting of liquified carbon dioxide and 1,1-difluoroethane, or a mixture consisting of liquid carbon dioxide and at least one other liquid or...
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6300378 |
Tropodegradable bromine-containing halocarbon additives to decrease flammability of refrigerants foam blowing agents solvents aerosol propellants and sterilants
A set of tropodegradable chemical additives to decrease the flammability of normally flammable refrigerants, foam blowing agents, cleaning solvents, aerosol propellants, and sterilants is...
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6299792 |
Halogenated hydrocarbon refrigerant compositions containing polymeric oil-return agents
Refrigerant compositions containing polymeric oil-return agents which solubilize or disperse mineral and synthetic oil lubricants with hydrofluorocarbon and...
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6296782 |
Polyol ester lubricants for refrigerator compressors operating at high temperatures
A high quality lubricant for compressors operated during at least part of their compression cycle at temperatures above and below normal human comfort temperatures, especially those using chlorine...
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6281185 |
Azeotropic compositions of methoxy-perfluoropropane and their use
The present invention provides binary azeotropic composition consisting essentially of C 3 F 7 --OCH 3 and a second component selected from the group consisting of an unsubstituted alkane having...
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6274062 |
Halocarbon/hydrocarbon refrigerant blend
A refrigerant composition for use as a direct replacement for R-12. The refrigerant composition comprises about 40 to 60 weight percent chlorodifluoromethane (R-22), about 30 to 50 weight percent...
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6271021 |
Microscale devices and reactions in microscale devices
The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis...
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6270689 |
Blend compositions of trifluoroiodomethane, tetrafluoroethane and difluoroethane
Compositions suitable for use as refrigerants comprise blends of trifluoroiodomethane, 1,1,1,2-tetrafluoroethane and 1,1-difluoroethane. Preferred compositions are non-flammable and at least near...
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6268317 |
Working fluid for refrigerating cycle equipment and the refrigerating cycle equipment using the same
A working fluid which demonstrates a preferable performance even with a small filling amount of the refrigerant of hydrocarbons containing no halogen atom such as ethane, propane, butane,...
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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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6261473 |
Working fluid containing 1,1-difluoroethane, 1,1,2,2-tetrafluoroethane and carbon dioxide
A working fluid comprising 1,1-difluoroethane (HFC-152a) of formula (1), 1,1,1,2-tetrafluoroethane (HFC-134a) of formula (2), and carbon dioxide. This can provide a new working fluid which not only...
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6261474 |
Lubricating oil for compression-type refrigerators containing pentafluoroethane and a polyvinyl ether
A lubricating oil for compression-type refrigerators using a refrigerant containing pentafluoroethane which lubricating oil comprises a polyvinyl ether compound having (a) a constituting unit...
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6258292 |
Alternative refrigerant including hexafluoropropylene
An alternative refrigerant to chlorofluorocarbons and their substitutes such as R-12 and R-134a and for R-22, and demonstrating improved performance as a refrigerant than those substituted for...
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6254798 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Nitrous oxide compositions
This invention relates to compositions that include nitrous oxide and at least one of trifluoromethane, difluoromethane, tetrafluoroethane, pentafluoroethane, perfluoroethane or ethane. These...
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6251300 |
Refrigerator oil compositions and fluid compositions for refrigerator
A refrigerator oil composition for use with an HFC refrigerant containing HFC-134a, HFC-125 or a mixture thereof, which comprises component (A) and component (B), said component (A) being 70 to 99%...
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6248255 |
Centrifugal compression refrigerant composition
A refrigerant composition which is suitable as a substitute for conventional refrigerant R12 in a vapour compression system employing a centrifugal compressor, comprises a mixture of...
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6245254 |
Lubricants
A working fluid composition comprising: (A) a heat transfer fluid comprising a mixture of at least two compounds selected from the group consisting of hydrofluoroalkanes and fluoroalkanes; and ...
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6242410 |
Azeotropic composition of hexafluoropropylene dimer and acetonitrile and separation process using the same
There is provided an azeotropic mixture consisting substantially of a hexafluoropropylene dimer and acetonitrile. In addition, there is provided a process for the separation of a...
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6235215 |
Mixed 1,1,1,2-tetrafluoroethane and trifluoromethane refrigerants
A mixed fluorocarbon refrigerant comprising 1,1,1,2-tetrafluoroethane and trifluoromethane provides a refrigeration temperature of -30° C. or less. The composition can also contain a refrigerator...
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6231780 |
Refrigerant mixture substitute for chlorodifluoromethane
A refrigerant composition useful as a substitute for chlorodifluoromethane (CHCIF 2 , HCFC-22). The refrigerant mixture has a first constituent of difluoromethane (CH 2 F 2 , HFC-32); a second...
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6231781 |
Refrigerant mixture comprising difluoromethane and 1,1,1-trifluoroethane
A refrigerant composition useful as a substitute for chlorodifluoromethane (CHClF 2 , HCFC-22). The refrigerant composition has a first constituent of difluoromethane (CH 2 F 2 , HFC-32); a second...
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6231782 |
Refrigerator oil composition
A refrigerating machine oil composition comprising: (A) a hydrocarbon oil; and (B) an alicyclic polycarboxylic acid ester compound having an alicyclic ring and at least two ester groups...
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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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6221273 |
Refrigerating compositions based on hexafluoropropane, fluoroethers and hydrocarbons
Azeotropic or near azeotropic compositions based on hexafluoropropane (R 236) as substitutes of CClF 2 -CClF 2 (R 114) which essentially consist of R 236 and bis(difluoromethyl)-ether or...
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6217791 |
Refrigerant incorporating a polyoxyalkylene glycol monomethylether
The object of the present invention is to provide a lubricant for refrigerators having good compatibility with chlorine-free Flon-type coolants, good lubricity and resistant to hygroscopicity and a...
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6214252 |
Azeotrope-like compositions of R-134a and n-pentane
An azeotrope-like composition comprising: (A) 1,1,1,2-tetrafluoroethane and (B) n-pentane: also described is a heat transfer device comprising the azeotrope-like composition.
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RE37119 |
Hydrofluoroethers as low temperature refrigerants
A method and apparatus are provided for using certain hydrofluoroethers (HFEs) as low temperature heat transfer media in secondary loop refrigeration systems. These materials exhibit a low,...
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6209343 |
Portable apparatus for storing and/or transporting biological samples, tissues and/or organs
An apparatus that utilizes the heat transfer ability of cryogenic materials to maintain its contents at low temperatures includes a container having inner and outer shells. The inner and outer...
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6207071 |
Fluid composition comprising HFC refrigerant and alkylbenzene-based refrigerator oil
A refrigerator oil for use with an HFC refrigerant containing HFC-134a and/or HFC-125, which comprises an alkylbenzene oil containing at least 60% by weight of alkylbenzenes having a molecular...
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6197211 |
Ketone-containing working fluid for refrigerating cycle equipment and refrigerating cycle equipment having the same
There is disclosed a working fluid for refrigerating cycle equipment of refrigerant compression-type containing the refrigerant and a refrigeration lubricant for a refrigerator, wherein said...
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6193905 |
Immersion cooling coolant
A coolant for cooling a semiconductor element by direct immersion, cooling, which has an improved cooling capability, is disclosed. The coolant comprises a low boiling point fluorocarbon having a...
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6189322 |
Refrigerant-circulating system, and refrigerant compressor and refrigeration cycle employing the refrigerant compressor
A refrigerant-circulating system which comprises a refrigeration cycle comprising a refrigerant compressor, a condenser, an expansion mechanism and an evaporator to form a refrigerant circuit and...
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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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