摘要:
Disclosed is a lubricating oil which has a low viscosity and a low vapor pressure at the same time, is free from a risk of inflammation and excellent in heat resistance. The lubricating oil has friction characteristics equivalent to those of the conventional hydrocarbon lubricating oils, and can be used for a long time under extremely severe conditions such as at high temperatures in vacuum condition. The lubricating oil contains, as a base oil, an ionic liquid which is composed of cations and anions and has an ion concentration of not less than 1 mol/dm3.
摘要:
The invention provides a lube oil which exhibits low vapor pressure despite having low viscosity, is non-flammable, exhibits excellent heat resistance, has tribological characteristics equivalent to those of conventional hydrocarbon-based lube oils, and can be used for a long time under very severe conditions such as high temperature and vacuum. The lube oil contains, as a base oil, an ionic liquid formed of a cation and an anion and having an ion concentration of 1 mol/dm 3 or more.
摘要:
A lubricating oil for a refrigeration system using a tetrafluoroethane refrigerant containing a fluorinated compound represented by formula (I), wherein X represents a monovalent group having a multiple bond, A represents a mono-, di- or trivalent residue of an unsubstituted or partially substituted perfluorocarbon, perfluoro ether or perfluoro polyether. This oil has not only a good compatibility with a tetrafluoroethane refrigerant represented by HFC-134a in a wide temperature range but also excellent properties including heat resistance, lubrication behaviors, electric insulation, and viscosity-to-temperature relationship.
摘要:
A lubricating oil for a refrigeration system using a tetrafluoroethane refrigerant containing a fluorinated compound represented by formula (I), wherein X represents a monovalent group having a multiple bond, A represents a mono-, di- or trivalent residue of an unsubstituted or partially substituted perfluorocarbon, perfluoro ether or perfluoro polyether. This oil has not only a good compatibility with a tetrafluoroethane refrigerant represented by HFC-134a in a wide temperature range but also excellent properties including heat resistance, lubrication behaviors, electric insulation, and viscosity-to-temperature relationship.
摘要:
Disclosed is a lubricating oil which has a low viscosity and a low vapor pressure at the same time, is free from a risk of inflammation and excellent in heat resistance. The lubricating oil has friction characteristics equivalent to those of the conventional hydrocarbon lubricating oils, and can be used for a long time under extremely severe conditions such as at high temperatures in vacuum condition. The lubricating oil contains, as a base oil, an ionic liquid which is composed of cations and anions and has an ion concentration of not less than 1 mol/dm3.
摘要:
New fluorinated compounds and method for their preparation. These compounds are used particularly but not exclusively as fluorinated surfactants or as solid lubricants to increase the characteristics of slipperiness and oil-hydro-repellence of surfaces that constitute hulls of watercraft and the like and/or their cladding materials, sleighs, chutes, bases of skis and the like. These compounds having the general formula (I) can be used as such or in solution, pure or in a mixture with other similar or different fluorinated compounds.
摘要:
Die Erfindung betrifft die Verwendung von Schmiermittel enthaltend mindestens eine ionische Flüssigkeit als Schmiermittel in Bauteilen einer Windkraftanlage.