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6629419 |
CFC 12 replacement refrigerant
A refrigerant composition comprising a hydrofluorocarbon component including 1,1,1,2-tetrafluoroethane (HFC 134a), the composition further comprising an additive selected from a saturated...
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6617289 |
Method for producing ester
The present invention provides a method for producing a high quality ester and an ester obtained by this method. The method includes reacting an alcohol with a carboxylic acid in a presence of a...
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6606868 |
R 22 replacement refrigerant
A refrigerant composition comprising a hydrofluorocarbon component including 1,1,1,2-tetrafluoroethane (HCFC 134a), the composition further comprising an additive selected from a saturated...
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6604368 |
R 12 replacement refrigerant
A refrigerant composition comprising 1,1,1,2-tetafluoroethane (R134a) butane and pentane wherein the weights of butane, pentane and R134a are in the range: Pentane and butane 1-5% R134a 99-95%
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6582621 |
Refrigerator oils for use with 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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6581404 |
Refrigerant
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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6574973 |
Ternary refrigerant compositions containing fluorinated ethers as replacements for R-22
Refrigerant compositions include mixtures of at least three different components, including a fluorinated ether with at least one of a second fluorinated ether, an ether and a fluorinated...
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6568195 |
Ammonia refrigerating apparatus
To provide a refrigerating unit using ammonia as a refrigerant, which uses a lubricant that is excellent in the compatibility with an ammonia refrigerant as well as in the lubricity and the...
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6569347 |
Refrigerating machine oil and refrigerator using the same
There are provided a refrigerating machine oil which can easily remove a sludge generated in a refrigerant circuit and is easy to return to a compressor and a refrigerator employing the same. A...
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6565766 |
Environmentally safer replacement refrigerant for freon 12-based refrigeration systems
An apparatus and method wherein ozone layer-damaging dichlorodifluoromethane is substituted with a mix of less environmentally damaging refrigerants chlorodifluoroethane and tetrafluoroethane in...
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6562767 |
Process for producing a lubricant coated laquered wire used for forming the stator winding of an electrical refrigerating compressor
A lubricant for wire, which is insulated by means of a lacquer coating, and which is used for forming the stator windings of an electrical refrigerating compressor, consists of one or more...
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6551524 |
Polyol ester lubricants, especially those compatible with mineral oils, for refrigerating compressors operating at high temperatures
A high quality lubricant for compressors operated during at least part of their compression cycle at temperatures above normal human comfort temperatures, such as most automotive air conditioners,...
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6551523 |
Blended polyol ester lubricants for refrigerant heat transfer fluids
An ester blend, including an ester having neopentylglycol and a source of 2-ethylhexanoic acid as its reactive components and an ester having pentaerythritol and a source of 2-ethylhexanoic acid as...
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6546740 |
Ternary refrigerant compositions which contain perfluoroorgano sulfur compounds as replacements for R-22
Refrigerant compositions include mixtures of at least three different components, including a fluorinated sulfur-containing compound with at least one of a fluorinated ether or a fluorinated...
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6526764 |
Hydrofluorocarbon refrigerant compositions soluble in lubricating oil
Hydrofluorocarbon refrigerants are not soluble in hydrocarbon oil. Retrofitting refrigeration equipment with hydrofluorocarbons generally entails the use of expensive polyol ester (POE) lubricants....
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6516837 |
Method of introducing refrigerants into refrigeration systems
Provided are methods of introducing environmentally desirable refrigerants into refrigeration systems. The present methods involve recharging a refrigerant system that contains a...
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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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6500790 |
Magnetic wire external lubricant
A lubricant blend for use on a wire exposed to an HFC refrigerant. The lubricant blend includes an organic phase and an aqueous phase. The organic phase includes a lubricant which has a defined...
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6495062 |
Lubricating oil composition for refrigerators and method for lubrication with the composition
A composition for use in compression refrigeration comprising (A) a refrigerant containing a C1-C8 hydrocarbon as the principal ingredient, and (B) a lubrication base oil primarily formed of a...
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6477848 |
Refrigerating apparatus
A compressor ( 11 ), a four-way switching valve ( 12 ), an outdoor heat exchanger ( 13 ), an expansion valve ( 14 ) and an indoor heat exchanger ( 15 ) are sequentially connected together through...
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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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6476120 |
Refrigerant composition containing PTFE
A refrigerant composition is disclosed which includes lubricants. The refrigerant composition includes formulations for use in automotive, residential or building air conditioning units. The...
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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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6444626 |
Poly(neopentyl polyol) ester based coolants and improved additive package
A synthetic lubricant composition is a blend of a polyol ester admixed with effective amounts of an antioxidant, yellow metal pacifier and rust inhibitors. The polyol ester blend includes a major...
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6436309 |
Polyol and complex esters for use with, in particular, fluorinated refrigerants
The invention concerns a refrigerant composition which comprises a chlorine-free hydrofluorocarbon based refrigerant and, mixed with the refrigerant, a lubricant comprising a polyol ester....
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6410492 |
Mixed esters of pentaerythritol for refrigeration base oils
A refrigerator oil comprises an ester obtained from: pentaerythritol; and a carboxylic acid mixture comprising n-pentanoic acid in an amount of 20 to 50% by mass; n-heptanoic acid in an amount of...
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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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6403540 |
Chemical composition for cleaning an automotive air conditioning system and method for operating and cleaning
A composition for cleaning and lubricating automotive air conditioners contains a polyol ester lubricant, an antiwear and extreme pressure additive, and a solvent mixture of tetrafluoroethane and...
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6379581 |
Lubricated refrigerant composition containing fluorocarbon-type refrigerant, synthetic oil and molybdenumoxysulfide derivatives
A lubricant for use in a refrigerator which operates with a chlorine-free Flon (fluorocarbon)-type refrigerant whose molecules do not contain chlorine. The lubricant contains a synthetic oil, and...
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6374629 |
Lubricant refrigerant composition for hydrofluorocarbon (HFC) refrigerants
A lubricant-refrigerant composition contained within a compression refrigeration system is disclosed which comprises (A) at least one fluorine-containing hydrocarbon refrigerant containing 1 to 3...
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6369006 |
Air conditioning and refrigeration system using a calcium salt of dialkyl aromatic sulfonic acid
A method of improving the efficiency of an air conditioning and refrigeration system, comprising introducing into the system a mixture of a carrier with an energy transferring polar compound...
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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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6362139 |
Air conditioning and refrigeration system using a sulfur containing polar compound
A method of improving the efficiency of an air conditioning and refrigeration system, comprising introducing into the system a mixture of a carrier with an energy transferring polar compound...
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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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6335311 |
Lubricant for refrigerators using ammonia refrigerant
To provide a polyalkylene glycol-based refrigerant oil for refrigerators using ammonia as a refrigerant. The present invention provides a lubricant for refrigerators using ammonia refrigerant,...
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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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6316395 |
Lubricating oil for flon refrigerant
A lubricating oil for a flon refrigerant, containing a polyglycol compound having a kinematic viscosity at 40° C. of at least 30 cSt, a viscosity index of at least 150 and a water content of not...
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6306803 |
Refrigerator oil for carbon dioxide refrigerant, and method of using it for lubrication
Provided is a refrigerator oil, especially that for carbon dioxide refrigerant, which comprises a base oil comprising an oxygen-containing organic compound as the essential component and having a...
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6307093 |
Organic compounds and processes for their manufacture
Esters of branched C 9 alcohols suitable as plasticizers are formed by esterification of a C 9 alcohol produced by the aldol condensation from propanal and a C 6 aldehyde and hydrogenation, the...
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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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6290869 |
Lubricant ester
A lubricant ester having enhanced hydrolytic stability is disclosed. The ester is a mono or diester of 2-ethyl-2-butyl-1,3-propanediol or an alkoxylate thereof and at least one carboxylic acid...
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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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6267906 |
Polyol ester lubricants for refrigerating compressors operating at high temperature
A high quality lubricant for heavy duty service air conditioner and refrigerator compressors, especially those using chlorine free hydrofluorocarbon refrigerant working fluids, is provided by mixed...
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6267907 |
Lubricant composition comprising an aliphatic substituted naphthalene alone or in combination refrigeration systems
A lubricant-refrigerant composition for a compression refrigeration system is disclosed which comprises (A) carbon dioxide refrigerant, and (B) a lubricant of an aliphatic naphthalene. A...
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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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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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6258293 |
Refrigeration cycle
A refrigerating apparatus comprising a refrigeration cycle comprising at least a compressor, a condenser, a dryer, an expansion mechanism and an evaporator, a refrigerant composed mainly of a...
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6255262 |
High hydroxyl content glycerol di-esters
A process for reproducibly forming a thermally and oxidatively stable high hydroxyl glycerol di-ester compound which is particularly useful as a lubricant. The glycerol di-ester compound is formed...
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