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4101436 |
Constant boiling mixtures of 1-chloro-2,2,2-trifluoroethane and hydrocarbons
Constant boiling mixtures of 1-chloro-2,2,2-trifluoroethane and certain hydrocarbons are useful as refrigerants, heat transfer media, gaseous dielectrics, expansion agents, aerosol propellants,...
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4100092 |
Dual temperature thermal energy storage composition for heat pumps
A combination thermal energy storage material capable of functioning in two discrete temperature ranges and comprised of two constituents, one of which has a phase change in the low temperature...
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4089186 |
Heating process using a heat pump and a fluid mixture
Process for producing heat at a temperature level higher than that of an available heat source comprising vaporizing a working fluid of at least two components of different boiling points by heat...
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4068706 |
Thermal stabilization of chlorobenzenes
Chlorobenzenes with 2 to 5 chlorine substituents particularly trichlorobenzenes, can be used in a heat transfer method, particularly when contained in steel or aluminum vessels and at temperatures...
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4057974 |
Constant boiling mixtures of 1-chloro-2,2,2-trifluoroethane and octafluorocyclobutane
Constant boiling mixtures of 1-chloro-2,2,2-trifluoroethane and octafluorocyclobutane are useful as refrigerants, heat transfer media, gaseous dielectrics, expansion agents, aerosol propellants,...
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4057973 |
Constant boiling mixtures of 1-chloro-2,2,2-trifluoroethane and 2-chloroheptafluoropropane
Constant boiling mixtures of 1-chloro-2,2,2-trifluoroethane and 2-chloroheptafluoropropane are useful as refrigerants, heat transfer media, gaseous dielectrics, expansion agents, aerosol...
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4055049 |
Constant boiling mixtures of 1,2-difluoroethane and 1,1,2-trichloro-1,2,2-trifluoroethane
Constant boiling mixtures of 1,2-difluoroethane and 1,1,2-trichloro-1,2,2-trifluoroethane are useful as power fluids in low temperature Rankine cycles, and as refrigerants, aerosol propellants,...
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4055054 |
Constant boiling mixtures of dichloromonofluoromethane and 1-chloro-2,2,2-trifluoroethane
Constant boiling mixtures of dichloromonofluoromethane and 1-chloro-2,2,2-trifluoroethane are useful as refrigerants, heat transfer media, gaseous dielectrics, expansion agents, aerosol...
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4054036 |
Constant boiling mixtures of 1,1,2-trichlorotrifluoroethane and cis-1,1,2,2-tetrafluorocyclobutane
Constant boiling mixtures of 1,1,2-trichlorotrifluoroethane and cis-1,1,2,2-tetrafluorocyclobutane are useful as refrigerants, heat transfer media, gaseous dielectrics, expansion agents, aerosol...
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4046533 |
Refrigeration working fluid containing branched chain alkylbenzene lubricant
Refrigeration apparatus containing working fluid consisting essentially of refrigerant and lubricant, said refrigerant being halo-substituted hydrocarbon of 1 to 3 carbon atoms and at least 40% by...
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4045366 |
Azeotrope-like compositions of trichlorotrifluoroethane, nitromethane and acetone
Azeotrope-like compositions consisting essentially of 1,1,2-trichloro-1,2,2-trifluoroethane, nitromethane and acetone have utility as degreasing agents and as solvents to remove rosin fluxes from...
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4045365 |
Azeotrope-like compositions of trichloro-trifluoroethane, acetonitrile and acetone
Azeotrope-like compositions consisting essentially of 1,1,2-trichloro-1,2,2-trifluoroethane, acetonitrile and acetone have utility as degreasing agents and as solvents to remove rosin fluxes from...
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4042524 |
Methods for absorption heating
The invention comprises a novel compound having the chemical name 2-(t-butoxymethyl) tetrahydrofuran and a novel absorption pair comprising 2-(t-butoxymethyl) tetrahydrofuran as the solvent and a...
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4037650 |
Thermal storage apparatus
A thermal storage apparatus comprising two thermal storage vessels, each thermal storage vessel containing a thermal storage medium, one medium being capable of being maintained at a temperature in...
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4028905 |
PrNi.sub.5 as a cryogenic refrigerant
As a cryogenic refrigerant in an adiabatic demagnetization refrigerator, the intermetallic compound PrNi 5 has been used to reach the millidegree Kelvin temperature range. The compound has a...
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4024192 |
Perfluorocyclohexyl ethers
New and useful perfluorinated cyclohexyl ethers are manufactured by reacting a phenol with hexafluoro propene or tetrafluoro ethylene, dissolving the partly fluorinated phenyl alkyl ethers obtained...
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4019992 |
Corrosion inhibitors for absorption refrigeration systems
Working fluid compositions for absorption refrigeration systems comprising alcohol, lithium bromide, zinc bromide and a synergistic mixture of arsenic trioxide and the sodium salt of...
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4005584 |
Composition, method and apparatus for absorption heating
The invention comprises absorption pair compositions consisting essentially of selected lower alkyl fluorocarbon solutes dissolved in selected furan ring containing absorbents. The invention...
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4003426 |
Heat or thermal energy storage structure
A heat or thermal energy storage structure comprising a crosslinked polymeric resinous matrix having a plurality of substantially unconnected small closed cavities and a heat sink material...
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3996076 |
Process for quench hardening with polyacrylate quenching medium
A process for quench hardening metal is provided. The process comprises heating the metal to a quench hardening temperature and thereafter immersing the metal in a quenching medium which is an...
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3976584 |
Thermal energy storage material
A thermal energy storage material which is stable at atmospheric temperature and pressure and has a melting point higher than 32°F. is prepared by dissolving a specific class of clathrate forming...
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3956153 |
Regenerative nucleating agents
The phenomena of undercooling encountered with various heat responsive materials in passing from the liquid to solid phase is minimized by incorporation of a regenerative nucleating agent which is...
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3953917 |
Method for freeing a fastener
A stream of a pressurized liquid, which is a gas at ambient temperature, is directed against a head of a threaded fastener to chill the fastener to cause release of the fastener from its socket so...
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3944494 |
Stabilization of trichlorodifluoro benzenes
Trichlorodifluorobenzene is thermally stabilized particularly in the presence of engineering metals by contacting it, especially when at temperatures greater than about 200°C, with solid alkaline...
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3940342 |
Azeotrope of 1,2-dichloro-1,1,2-trifluoroethane and trichlorofluoromethane
Constant boiling binary admixtures are formed by 1,2-dichloro-1,1,2-trifluoroethane with trichlorofluoromethane, with diethyl ether, and with dichloromethane. A constant boiling ternary admixture...
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3939016 |
Aqueous quenching medium containing salts of polymeric materials
A novel quenching medium for steel is provided. The quenching medium is a 0.5-10 wt. % aqueous solution of polyacrylic acid, polymethacrylic acid, a copolymer of acrylic acid and methacrylic acid,...
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3936387 |
Azeotrope of 1,2-dichloro-1-fluoroethane and methanol
This invention relates to azeotropic compositions of 1,2-dichloro-1-fluoroethane or of 1,2-dichloro-1,2-difluoroethane with certain alcohols, ethers, or ketones.
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3931026 |
Electrically insulating encapsulating composition for semiconductor devices
An electrically insulating composition adapted for the encapsulation of a miconductor body and for protecting the semiconductor surface against harmful impurities, comprising a mixture of a...
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3922228 |
Azeotropic composition consisting of difluoromethyl trifluoromethylether and dimethyl ether
Azeotropic compositions are formed by difluoromethyl trifluoromethyl ether with dimethyl ether.
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3915876 |
Tertiary diamides
This invention relates to novel liquid tertiary diamides having the following structural formula: ##SPC1## Wherein n = 0 - 10 R = --(CH 2 ) m --CH 3 wherein m = 4 - 12 One such diamide is...
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3915883 |
Liquid crystalline compounds and compositions
Liquid crystalline materials comprised of substituted phenyl p-benzoyloxybenzoates are useful in electro-optical elements. These materials have low crystal to mesophase transition temperatures and...
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3915875 |
Low temperature fluid
Low temperature heat transfer or functional fluid in the form of 1,1,2-trichloro-1,2,2-trifluoroethane, saturated with carbon dioxide, with or without the presence of solid carbon dioxide. The...
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3907696 |
New heat transfer agents
New heat transfer agents containing at least three components consisting of by volume 5 to 90% of diphenyl oxide, 5-50% of biphenyl and 5 to 90% of polyphenyl ether having 3 or 4 aromatic nuclei,...
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3903009 |
Azeotrope of 1,1,2-trichloro-1,2,2-trifluoroethane, ethanol and nitromethane
A minimum boiling point azeotrope containing about 95.3 percent 1,1,2-trichloro-1,2,2-trifluoroethane, 3.6 percent ethanol and 1.1 percent nitromethane by weight, useful for cleaning circuit boards.
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3901817 |
Halocarbon compositions
Low boiling azeotropic and essentially azeotropic mixtures, consisting essentially of monochlorotrifluoromethane and methyl fluoride, useful as refrigerants.
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3891625 |
Tertiary perfluoro-amino ethers
Perfluorinated linear or cyclic oligoamines having ether groups, useful as inert reaction media or as hydraulic liquids, prepared by the electrofluorination, in anhydrous HF, of the addition...
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3884828 |
Propellants and refrigerants based on trifluoropropene
Aerosol propellants and refrigerants based on trifluoropropene (CF 3 CH=CH 2 ) are disclosed.
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3860661 |
PHENOXYBIPHENYL COMPOUNDS
Compounds of classes represented by phenoxybiphenyl and terphenyl compounds having from 5 to 10 aromatic rings and from 2 to 8 oxy ether linkages wherein at least 40 percent of the total linkages...
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3846327 |
AZEOTROPIC COMPOSITION
This invention relates to a binary azeotrope of 1,1,2-trichloro-1,2,2-trifluoroethane and tertiary butyl alcohol useful as a cleaning solvent.
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3842593 |
CLOSED RANKINE CYCLE POWER PLANT
A closed Rankine cycle power plant wherein the working fluid is a mixture of ortho-dichlorobenzene (ODB) and meta-dichlorobenzene (MODB) in such relative proportions that in the condenser the...
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3841099 |
WORKING FLUIDS FOR EXTERNAL COMBUSTION ENGINES
Water-pyridine mixtures containing about 25 to 90% by weight of pyridine have been found to be excellent working fluids for external combustion engines. Methyl substituted pyridines such as...
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3838577 |
WATER CRYSTALLIZATION
The direct contact crystallization of ice in water or aqueous beverages is carried out using a mixture of Freons having a boiling point at substantially atmospheric pressure in the desired...
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3834456 |
AQUEOUS ORGANIC HEAT-SINK FLUIDS
This invention comprises aqueous organic hydrate compositions each of which melts at an invariant temperature and has a large latent heat of fusion associated with its liquid-solid phase change...
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3802185 |
GENERATION OF POWER USING TRICHLOROBENZENE IN A RANKINE-CYCLE ENGINE
1,2,4-Trichlorobenzene is an inexpensive and useful working fluid for use in Rankine-cycle engines. Thermal stability at high temperatures is enhanced by constructing the engine, particularly the...
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3774393 |
METHOD OF GENERATING POWER
Hydrochlorofluorobenzenes defined by C 6 H a Cl b F c wherein a is 1 to 3, b is 2 to 4 and c is 1 to 3 with a + b + c = 6 and a + b = 3 to 5, and mixtures thereof can be used to generate power...
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3753345 |
POWER FLUID
A working fluid for use in a Rankine cycle engine consists of a mixture of hexafluorobenzene and perfluorotoluene.
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3744272 |
REFRIGERATION SYSTEM WITH HEAT EXCHANGER EMPLOYING EUTECTIC
This invention is a unique environmental control unit of the vapor-compreon system type which incorporates a dual operation heat exchanger of the circulated air variety. The heat exchanger embodies...
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3719603 |
NOVEL LOW BOILING COMPOSITIONS
Trifluoromethane (CHF 3 ) and sulfur hexafluoride (SF 6 ), in certain proportions, form an azeotropic mixture and equivalent mixtures, which are especially adapted for use as refrigerants in high...
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3713289 |
MOTIVE FLUIDS FOR EXTERNAL COMBUSTION ENGINES
A new class of motive fluids for external combustion engines characterized by a thermo-dynamic property which render them superior to water in external combustion engines.
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3707843 |
PRIME MOVER SYSTEM UTILIZING BIS (TRIFLUOROMETHYL) BENZENE AS WORKING FLUID
An anti-pollution heat engine including a prime mover system wherein the working fluid comprises bis (trifluoromethyl) benzene.
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