Abstract: 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 improved performance in air conditioning systems designed to use only R-134a as the sole refrigerant fluid.

Abstract: Refrigerants comprising 1,1-difluoroethylene and one or more hydrofluoroalkanes, in particular difluoromethane (R-32), trifluoromethane (R-23), 1,1-difluoroethane (R-152a), 1,1,1-trifluoroethane (R-143a), 1,1,1,2-tetrafluoroethane (R-134a) and/or pentafluoroethane (R-125).

Abstract: The invention relates to novel azeotrope-like compositions of 1-bromopropane, 4-methoxy-1,1,1,2,2,3,3,4,4-nonafluorobutane (HFE-7100) and at least one organic solvent selected from the group consisting of methanol, ethanol, 2-propanol, 2-methyl-2-propanol, tetrahydrofuran, nitromethane, and methylene chloride and more particularly to azeotrope-like compositions based on these compounds which are useful as solvents in refrigeration flushing, oxygen system cleaning and vapor degreasing applications.

Abstract: A dielectric fluid for the machining of metal by spark erosion which contains saturated aliphatic hydrocarbons with a proportion of aromatic hydrocarbons which is lower than one percent in weight and to which an additive is added, wherein organic substances from the group of anthraquinone derivatives are added as the additive in a concentration of maximally one percent in weight.

Abstract: This invention provides a solvent composition comprising 1-bromopropane and a decafluoropentane for use as a cleaning and degreasing solvent. Preferably the decafluoropentane consists essentially of 1,1,1,2,3,4,4,5,5,5-decafluoropentane. The solvent composition optionally includes stabilizers and co-solvents such alcohols, ketones, ethers, acetals, nitroalkanes, epoxides and amines. Specific compositions of 1-bromopropane, 1,1,1,2,3,4,4,5,5,5-decafluoropentane and optional stabilizers provide azeotrope compositions that are particularly well suited as cleaning and degreasing solvents.

Abstract: Quaternized imidazoles I ##STR1## in which R.sup.1 and R.sup.3 independently of one another are saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens,R.sup.2, R.sup.4 and R.sup.5 independently of one another are hydrogen or saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens, it being possible for R.sup.4 and R.sup.5, together with the corresponding imidazole carbons, to form a five- or six-membered ring, andX.sup..crclbar. is an anion,are used as corrosion inhibitors in the corrosion protection of nonferrous metals, especially for car radiator protection.

Abstract: 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 corrosion of the refrigeration system.

Abstract: The present invention provides binary azeotropic composition consisting essentially of C.sub.3 F.sub.7 --OCH.sub.3 and a second component selected from the group consisting of an unsubstituted alkane having 5 to 7 carbon atoms, methyl formate, acetone, methanol, 1,1,1,3,3,3-hexafluoro-2-propanol, methylene chloride and trans-1,2-dichloroethylene. The present invention also discloses tertiary azeotropic composition consisting essentially of C.sub.3 F.sub.7 --OCH.sub.3, a second component selected from the group consisting of methanol and 1,1,1,3,3,3-hexafluoro-2-propanol and a third component selected from the group consisting of methylene chloride and trans-1,2-dichloroethylene. The azeotropic composition of this invention may be used in various applications and in particular as refrigerant, in cleaning applications, in heat transfer applications, in coating applications, and the like.

Abstract: Provided is an electro-sensitive movable fluid composition which is comprised of a compound or a mixture of compounds which, at the working temperature of the fluid, has a conductivity .sigma., plotted as abscissa, and a viscosity .eta., plotted as ordinate, the triangle having, as vertexes, a point P indicated by the conductivity .sigma.=4.times.10.sup.-10 S/m and the viscosity .eta.=1.times.10.sup.0 Pa.S, a point Q indicated by the conductivity .sigma.=4.times.10.sup.-10 S/m and the viscosity n=1.times.10.sup.-4 Pa.S, and a point R indicated by the conductivity .sigma.=5.times.10.sup.-6 S/m and the viscosity .eta.=1.times.10.sup.-4 Pa.S. Also provided is a method for driving a rotor by producing a jet flow of the electro-sensitive movable fluid upon application of direct-current-voltage between two electrodes immersed in the fluid.

Abstract: A heat transfer fluid having high heat capacity, high thermal loading capacity, low viscosity and low freezing point includes diphenyl oxide and 1,1 diphenyl ethane in broad proportions.

Abstract: The invention provides azeotrope-like compositions consisting essentially of R.sub.f OCH.sub.3, where R.sub.

Abstract: Disclosed is a single phase mixture of about 1 to about 99 wt % of a compound having the general formula ##STR1## where "n" is 1 or 2 and about 0.1 to about 99 wt % of a liquid which can be a perfluoro aliphatic alkane from C.sub.5 to C.sub.8, a perfluoro cycloaliphatic alkane from C.sub.5 to C.sub.8, a perfluoro alkylcycloalkane having 5 to 8 carbon atoms in the ring and 1 or 2 branches of 1 to 3 carbon atoms each, a perfluoro-N-alkylmorpholine from C.sub.5 to C.sub.8, a perfluoro cycloether from C.sub.4 to C.sub.7, or a perfluoro polyether having an average molecular weight from about 400 to about 500.

Abstract: The invention relates to novel compositions of 1-bromopropane, nitromethane or acetonitrile and at least one alcohol selected from the group consisting of ethanol, 2-propanol and 2-methyl-2-propanol and more particularly to azeotrope-like compositions based on these compounds which are useful as solvents in refrigeration flushing, oxygen system cleaning and vapor degreasing applications.

Abstract: The invention provides azeotrope-like compositions consisting essentially of R.sub.f OCH.sub.3, where R.sub.f is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and one or more organic solvent(s) selected from the group consisting of: straight chain, branched chain and cyclic alkanes containing 6 to 8 carbon atoms; cyclic and acyclic ethers containing 4 to 6 carbon atoms; ketones having 3 carbon atoms; chlorinated alkanes containing 1, 3 or 4 carbon atoms; chlorinated alkenes containing 2 carbon atoms, alcohols containing 1 to 4 carbon atoms, partially fluorinated alcohols containing 2 to 3 carbon atoms, 1-bromopropane, acetonitrile, HCFC 225ca (1,1,-dichloro-2,2,3,3,3-pentafluoropropane and HCFC- 225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane).

Abstract: Anticorrosion solutions useful for refrigeration processes are disclosed. Heteropoly complex anions of transitional metal elements can be added to alkali metal halide absorption refrigeration solutions to minimize corrosion of the refrigeration system.

Abstract: Anticorrosion solutions and processes useful for refrigeration processes are disclosed. Heteropoly complex anions of transitional metal elements can be added to an absorption refrigeration solutions which includes at least one alkali metal halide or similar compounds, or mixtures thereof, in combination with transition metal compounds or compounds of the metallic elements of Groups IIIa to VIa of the Periodic Table of Elements to minimize corrosion of the refrigeration system.

Abstract: Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and propane; 1,1,1,2-tetrafluoroethane and cyclopropane; 1,1,1-trifluoroethane and DME or propylene; 1,1-difluoroethane and propane, isobutane, butane or cyclopropane; fluoroethane and propane or cyclopropane; 1,1,1,2,2,3,3-heptafluoropropane and butane, cyclopropane, DME, isobutane or propane; or 1,1,1,2,3,3,3-heptafluoropropane and butane, cyclopropane, isobutane or propane.

Abstract: Provided are azeotropic and azeotrope-like mixtures of 1,1,1,3,3-pentafluoropropane (HFC-245fa) and hydrogen fluoride. Such are useful as an intermediate in the production of HFC-245fa. The latter is useful as a nontoxic, zero ozone depleting fluorocarbon useful as a solvent, blowing agent, refrigerant, cleaning agent, aerosol propellant, heat transfer medium, dielectric, fire extinguishing composition and power cycle working fluid.

Abstract: An anti-freeze concentrate made by adding together at least:a) an alkylene glycol;b) an effective corrosion inhibiting amount, or more, of an unsubstituted benzoic acid; andc) an effective corrosion inhibiting amount, or more, of a C.sub.7 -C.sub.14 monocarboxylic acid.This formulation is particularly effective at inhibiting corrosion in coolants which are free of borates, primary and secondary amines, phosphates, silicates, as well as those coolants which are free of p-tertbutyl benzoic acid.

Abstract: A composition is disclosed which comprises water and at least one carboxylic salt dispersed or dissolved in said water, said salt being derived from:(A)(I) at least one derivative formed by reacting at least one C.sub.