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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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6187219 |
Refrigerator and difluoromethane/Pentafluoroethane/1,1,1,2-tetrafluoroethane working fluid
The invention provides a refrigerant comprising a mixture of three compounds selected from the group consisting of hydrofluorocarbons represented by the formula C l H m F n (1) wherein when l...
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6183660 |
Refrigerant
The invention provides a refrigerant comprising a mixture of three compounds selected from the group consisting of hydrofluorocarbons represented by the formula C l H m F n (1) wherein when l...
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6170320 |
Method of introducing an additive into a fluid system, especially useful for leak detection, as well as an apparatus for leak detection and a composition useful for leak detection
An additive is introduced into a fluid system and dissolved in a carrier fluid which is immiscible or slightly miscible in the fluid system, wherein the carrier fluid is subsequently removed from...
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6165380 |
Method for transferring heat utilizing heat transfer/cooling fluid having tri-methyl glycine
A heat transfer/cooling fluid for low temperatures containing from about 15% to about 70% of trimethyl glycine or derivatives thereof and from about 30% to about 85% of water. The heat...
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6156224 |
Working fluid containing perfluorodimethylether
A mixed working fluid having almost no influence on stratosphere ozone layer and capable of being a substitute for R22, comprising 15 to 90% by weight perfluorodimethylether and one or two selected...
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6153117 |
Azeotropic refrigerant composition containing sulfur hexafluoride and method of use thereof
An azeotropic refrigerant of sulfur hexafluoride and one or more of octafluoropropane or decafluorobutane is described, as well as its method of use.
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6151902 |
Composition for inducing the creation of artificial snow and method of use
The present invention is directed to a method for making artificial snow wherein a snow-inducing agent is injected into the water of a snow-making system along with a particulate for increased...
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6146732 |
Thermal pack having a plurality of individual heat cells
The present invention relates to disposable thermal packs comprising a unified structure having at least one continuous layer of a semirigid material which softens when heated. The thermal packs...
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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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6132636 |
Leak-detecting refrigerant compositions containing oxazolyl-coumarin dyes
Refrigerant compositions containing oxazolyl-coumarin dyes for leak detection under ultraviolet light, and methods for the use of such dyes in leak detection.
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6123868 |
Photochromic molecular heat exchange medium
A heat exchange medium is disclosed which utilizes a change in molecular configuration of photochromic compounds when they are exposed to light. Further, by the addition of the photochromic...
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6113803 |
Non-azeotropic refrigerant compositions comprising difluoromethane or 1,1,1-trifluoroethane
The present invention provides refrigerant blends which are replacements for chlorodifluoromethane (HCFC-22). The present blends have refrigeration characteristics which are similar to HCFC-22. The...
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6112547 |
Reduced pressure carbon dioxide-based refrigeration system
There is disclosed an novel refrigeration apparatus and a method of refrigeration. The novel refrigeration apparatus comprises a desorber/evaporator, a gas/liquid compressor operatively connected...
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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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6106740 |
Non-azeotropic refrigerant composition of CO.sub.2, R-125, R-143a and R-22
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6100229 |
Compositions of 1,1,1,3,3,-pentafluoropropane and chlorinated ethylenes
The invention relates to novel compositions of 1,1,1,3,3-pentafluoropropane and chlorinated ethylenes and more particularly to azeotrope-like compositions based on these compounds which are useful...
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6093340 |
Use of mixtures based on difluoromethane and on pentafluorethane as cryogenic fluids in very low temperature refrigeration
To replace bromotrifluoromethane (R-13B1) in very low temperature refrigeration, the invention proposes to employ a mixture containing, on a mass basis, 25 to 50% of difluoromethane and 50 to 75%...
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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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6080705 |
Refrigerator oil, working fluid for refrigerator, and method for lubricating refrigeration system
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6074572 |
Gas mixture for cryogenic applications
An optimum gas mixture formulated from a group of component fluids, for use in a miniature mixed gas refrigeration system. The gas mixture has appropriate components, in appropriate concentrations,...
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6063305 |
Refrigerant compositions containing a hydrofluoropropane and a hydrofluorocarbon
Azeotropes of hydrofluorocarbons and hydrofluoroethers useful for use as refrigerants are disclosed. Zeotropes of hydrofluoropropanes and hydrofluoroethers with hydrofluorocarbons,...
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6056891 |
Drop-in performance increasing substitute for 1,1,1,2-tetrafluoroethane refrigerant
A method for producing refrigeration in a refrigeration system designed for R-134a including the step of drop-in substituting for the R-134a mixtures of R-152a, R-134a and R-125 to produce greatly...
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6054064 |
Refrigerant of 1,1-difluoroethylene
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6051158 |
Treatment of airbag inflation gases
Chemical coolant formulations for treating the hot gas formed by an airbag inflator and corresponding methods of inflating an airbag cushion are provided. The chemical coolant formulations include...
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6022486 |
Refrigerator comprising a refrigerant and heat regenerative material
A magnetic substance represented by the following general formula (I): AMz (I) where A is at least one rare earth element selected from the...
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6020040 |
Thermal pack having a plurality of individual heat cells
The present invention relates to disposable thermal packs comprising a unified structure having at least one continuous layer of a semirigid material which softens when heated. The thermal packs...
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6013194 |
Azeotrope(like) compositions including a hexafluoropropane and butane
Compositions disclosed include hexafluoropropane and a hydrocarbon having from 1 to 5 carbon atoms or dimethyl ether. These compositions are useful as refrigerants, cleaning agents, expansion...
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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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6001273 |
Binary azeotropes of difluoromethane and hydrocarbons
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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5989448 |
Refrigerant mixture containing hydrogen bromide
An azeotropic refrigerant mixture having low GWP and low ODP properties and saving on energy in amounts of from 8% to 17% and consisting of a blend of hydrogen bromide and a fluorohydrocarbon...
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5984995 |
Heat cells
This invention relates to a method of manufacturing heat cells which are based on a specific iron oxidation chemistry and having specific physical dimensions and fill characteristics. This method...
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5968406 |
Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane
The azeotropic compositions of 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane and the azeotropic and azeotropic-like composition of 1,1,2,2-tetrafluoroethane and one of,...
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5960634 |
Method and apparatus for storing acetylene
A method and apparatus of storing and transporting acetylene in which acetylene is introduced under pressure into liquid nitrogen to produce a liquid solid mixture. The feeding of the acetylene can...
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5956958 |
Gas mixture for cryogenic applications
A miniature mixed gas refrigeration system and method of operation are disclosed, having a coaxial catheter with an inner high pressure supply lumen and an outer low pressure return lumen. An...
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5954995 |
Drop-in substitutes for 1,1,1,2-tetrafluoroethane (R-134a) refrigerant
A group of refrigerant fluids that may be combined in novel ways to produce several excellent "drop-in" substitutes for R-134a refrigerant. Performance is increased by constructing a zeotropic...
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5945031 |
Freeze resistant, Perkins tube type heat exchanger
A freeze resistant aqueous coolant solution for use in Perkins tube type heat exchangers is formed of one or more metal salts selected from the alkali metals of Group IA and the alkaline earth...
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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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5922239 |
Polyol ether derivatives and production methods therefor
Polyol ether derivatives, a method for producing the polyol ether derivatives, and a working fluid composition for a refrigerating machine containing a hydrofluorocarbon and a refrigeration oil...
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5897809 |
Decafluoropentane compositions
Azeotropic or azeotrope-like compositions comprising effective amounts of 1,1,1,2,3,4,4,5,5,5-decafluoropentane and cyclohexane or 1,1,1,2,3,4,4,5,5,5-decafluoropentane, cyclohexane and acetone to...
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5895793 |
Fluorine-containing hydrocarbon composition
A fluorine-containing hydrocarbon composition comprising the following (1) and (2), wherein the proportions of (1) and (2) in the composition are such that (1) is 100 parts by weight, and (2) is...
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5888418 |
Azeotropic refrigerant comprising bis-(difluoromethyl)ether and 1,1,2-trifluoroethane
An azeotropic refrigerant particularly useful as a working fluid in chilled water refrigerating systems to be used in possible juxtaposition to sea water comprises at least about 2 mol percent...
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5879581 |
Composition for use in refrigeration cycle and refrigerating apparatus
In a composition for use in a refrigeration cycle which comprises at least a hydrofluorocarbon, a refrigerator oil, and a desiccating agent, the desiccating agent possesses a capacity for...
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5866029 |
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and pentane
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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5851436 |
Nonafluoromethoxybutane compositions
Compositions of nonafluoromethoxybutane and cyclopentane, nonafluoromethoxybutane and cyclohexane; nonafluoromethoxybutane, cyclopentane and acetone, nonafluoromethoxybutane, cyclohexane and...
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5846388 |
Azeotropic mixture of 1,1-difluoroethane and hydrogen fluoride and production process of 1,1-difluoroethane
There is provided an azeotropic mixture of hydrogen fluoride (HF) and 1,1-difluoroethane (HFC152a). In addition, there is provided a process for the production of HFC152a having a step of more...
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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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5830384 |
Cool insulator
The cool insulator incorporates a water gel coolant and poly-p-ethylene tphthalamide fibers (Kevlar) in an elastomeric rubber binder selected from the group consisting of silicon rubber,...
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