Provided is an aqueous coating composition capable of forming a fluororesin coating film layer with excellent electrical properties and surface physical properties, and good adhesive properties. A coating composition containing 2 or more kinds of fluororesins, where at least 1 kind of the fluororesin, a fluororesin (I), has a number of functional groups of 30 to 1,000 per 10.sup.6 main-chain carbon atoms, and where the coating composition further contains an inorganic filler, a surfactant, and a liquid medium.

A device or component thereof is provided for generation, transmission, distribution and/or use of electrical energy. In at least one insulation space formed within the device, there is a current-conducting component. The insulation space includes a dielectric insulation medium that surrounds the current-conducting component. This insulation medium includes a) at least one organofluorine compound selected from the group consisting of fluoroketones, fluoronitriles, and mixtures thereof and b) a carrier gas comprising at least one component selected from the group consisting of air, an air component, CO.sub.2, or a mixture of these components. The device includes at least one gas seal for sealing of the at least one insulation space from a further space. The gas seal includes butyl rubber as seal material.

A device or component thereof is provided for generation, transmission, distribution and/or use of electrical energy. In at least one insulation space formed within the device, there is a current-conducting component. The insulation space includes a dielectric insulation medium that surrounds the current-conducting component. This insulation medium includes a) at least one organofluorine compound selected from the group consisting of fluoroketones, fluoronitriles, and mixtures thereof and b) a carrier gas comprising at least one component selected from the group consisting of air, an air component, CO.sub.2, or a mixture of these components. The device includes at least one gas seal for sealing of the at least one insulation space from a further space. The gas seal includes butyl rubber as seal material.

Disclosed is a mixture comprising the compound trans-1,1,1,4,4,4-hexafluoro-2-butene and at least one additional compound selected from the group consisting of HFOs, HFCs, HFEs, CFCs, CO2, olefins, organic acids, alcohols, hydrocarbons, ethers, aldehydes, ketones, and others such as methyl formate, formic acid, trans-1,2 dichloroethylene, carbon dioxide, cis-HFO-1234ze+HFO-1225yez, mixtures of these plus water; mixtures of these plus CO2; mixtures of these trans 1,2-dichloroethylene (DCE); mixtures of these plus methyl formate; mixtures with cis-HFO-1234ze+CO2, mixtures with cis-HFO-1234ze+HFO-1225yez+CO2, and mixtures with cis-HFO-1234ze+HFC-245fa. Also disclosed are methods of using and products of using the above compositions as blowing agents, solvents, heat transfer compositions, aerosol propellant compositions, fire extinguishing and suppressant compositions.

Disclosed is a mixture comprising the compound trans-1,1,1,4,4,4-hexafluoro-2-butene and at least one additional compound selected from the group consisting of HFOs, HFCs, HFEs, CFCs, CO2, olefins, organic acids, alcohols, hydrocarbons, ethers, aldehydes, ketones, and others such as methyl formate, formic acid, trans-1,2 dichloroethylene, carbon dioxide, cis-HFO-1234ze+HFO-1225yez, mixtures of these plus water; mixtures of these plus CO2; mixtures of these trans 1,2-dichloroethylene (DCE); mixtures of these plus methyl formate; mixtures with cis-HFO-1234ze+CO2, mixtures with cis-HFO-1234ze+HFO-1225yez+CO2, and mixtures with cis-HFO-1234ze+HFC-245fa. Also disclosed are methods of using and products of using the above compositions as blowing agents, solvents, heat transfer compositions, aerosol propellant compositions, fire extinguishing and suppressant compositions.

A condition diagnosis and a life-extending treatment method for an electric apparatus comprising insulation oil and a system to perform the method and comprises addition of a specific group, phospines, of chemical substances to protect metals in transformers and other insulating oil filled apparatuses from sulphidation caused by elemental sulphur.

A condition diagnosis and a life-extending treatment method for an electric apparatus comprising insulation oil and a system to perform the method and comprises addition of a specific group, phospines, of chemical substances to protect metals in transformers and other insulating oil filled apparatuses from sulphidation caused by elemental sulphur.

Azeotrope-like compositions are disclosed. The azeotrope-like compositions are mixtures of HFO-E-1,3,4,4,4-Pentafluoro-3-trifluoromethyl-1-butene and E-1-Chloro-3,3,3-trifluoropropene. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as dielectrics.

Azeotrope-like compositions are disclosed. The azeotrope-like compositions are mixtures of HFO-E-1,3,4,4,4-Pentafluoro-3-trifluoromethyl-1-butene and E-1-Chloro-3,3,3-trifluoropropene. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as dielectrics.

Azeotrope-like compositions are disclosed. The azeotrope-like compositions are mixtures of HFO-E-1,3,4,4,4-Pentafluoro-3-trifluoromethyl-1-butene and E-1-Chloro-3,3,3-trifluoropropene. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as dielectrics.