Patent application number | Description | Published |
20090200507 | BASE OIL OF REFRIGERATING MACHINE OIL FOR CARBON DIOXIDE REFRIGERANT AND REFRIGERATING MACHINE OIL FOR CARBON DIOXIDE REFRIGERANT - The base oil for the refrigerating machine oil used with a carbon dioxide refrigerant of the invention is characterized by comprising a complete ester of a fatty acid in which the proportion of C14-C22 branched fatty acid is 40-100% by mole and a polyhydric alcohol. The refrigerating machine oil used with a carbon dioxide refrigerant according to the invention is characterized by comprising the base oil for the refrigerating machine oil used with a carbon dioxide refrigerant according to the invention. The base oil for the refrigerating machine oil used with a carbon dioxide refrigerant and the refrigerating machine oil used with a carbon dioxide refrigerant according to the invention, when used together with a carbon dioxide refrigerant, exhibit excellent stability and electrical insulating properties, and have suitable compatibility with refrigerants while allowing adequate lubricity to be exhibited without increasing the viscosity of the base oil. | 08-13-2009 |
20100016195 | Lube Base Oil, Lubricating Oil Composition For Internal Combustion Engine, And Lubricating Oil Composition For Drive Transmissoin Device - The lubricating base oil of the invention satisfies at least one of conditions (a) or (b) below. The lubricating oil composition for an internal combustion engine according to the invention comprises the lubricating base oil of the invention, an ashless antioxidant containing essentially no sulfur as a constituent element, and at least one compound selected from among ashless antioxidants containing sulfur as a constituent element and organic molybdenum compounds. Also, a lubricating oil composition for a power train device according to the invention comprises the lubricating base oil of the invention, a poly(meth)acrylate-based viscosity index improver and a phosphorus-containing compound. | 01-21-2010 |
20100041572 | Lube Base Oil, Process for Production Thereof, and Lubricating Oil Composition - The present invention provides a lubricating base oil comprising saturated components of 90% by mass or greater, wherein the proportion of cyclic saturated components among the saturated components is not greater than 40% by mass, and by having a viscosity index of 110 or higher and an iodine value of not greater than 2.5. The lubricating base oil of the invention exhibits excellent viscosity-temperature characteristics and heat and oxidation stability while also allowing additives to exhibit a higher level of function when additives are included. The lubricating base oil of the invention is suitable for use in various lubricating oil fields, and is especially useful for reducing energy loss and achieving energy savings in devices in which the lubricating base oil is applied. | 02-18-2010 |
20100093568 | REFRIGERATOR OIL, COMPRESSOR OIL COMPOSITION, HYDRAULIC FLUID COMPOSITION, METALWORKING FLUID COMPOSITION, HEAT TREATMENT OIL COMPOSITION, LUBRICANT COMPOSITION FOR MACHINE TOOL AND LUBRICANT COMPOSITION - The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % C | 04-15-2010 |
20100130395 | LUBRICANT BASE OIL, METHOD FOR PRODUCTION THEREOF, AND LUBRICANT OIL COMPOSITION - The lubricating base oil of the invention is characterized by having an urea adduct value of not greater than 4% by mass and a viscosity index of 100 or greater. The process for production of a lubricating base oil according to the invention is characterized by comprising a step of hydrocracking/hydroisomerization of a stock oil containing normal paraffins, until the obtained treatment product has an urea adduct value of not greater than 4% by mass and a viscosity index of 100 or greater. A lubricating oil composition according to the invention is characterized by comprising the lubricating base oil of the invention. | 05-27-2010 |
20100137176 | OPERATING OIL FOR BUFFER - The shock absorber fluid according to the invention is characterized by comprising a lubricating base oil that has a urea adduct value of not greater than 4% by mass and a viscosity index of 100 or greater. The shock absorber fluid according to the invention can exhibit a high level of all properties including viscosity-temperature characteristic, shear stability and antifoaming property. | 06-03-2010 |
20110049008 | LUBRICANT BASE OIL, METHOD FOR PRODUCTION THEREOF, AND LUBRICANT OIL COMPOSITION - The lubricating base oil of the invention has a kinematic viscosity at 40° C. of 7 mm | 03-03-2011 |
20110049009 | LUBRICANT BASE OIL, METHOD FOR PRODUCTION THEREOF, AND LUBRICANT OIL COMPOSITION - The lubricating base oil of the invention has a urea adduct value of not greater than 4% by mass, a kinematic viscosity at 40° C. of 25-50 mm | 03-03-2011 |
20110065618 | LUBRICANT OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE - The lubricating oil composition for an internal combustion engine of the invention comprises a lubricating base oil having a urea adduct value of not greater than 4% by mass and a viscosity index of 100 or greater, an ash-free antioxidant containing no sulfur as a constituent element, and at least one compound selected from among ash-free antioxidants containing sulfur as a constituent element and organic molybdenum compounds. | 03-17-2011 |
20110237477 | LUBRICANT BASE OIL AND A PROCESS FOR PRODUCING THE SAME, AND LUBRICATING OIL COMPOSITION - A hydrocarbon-based lubricating base oil wherein a urea adduct value is not greater than 4% by mass, a viscosity index is 100 or higher, an average of carbon atoms number is 23-31 as determined by gas chromatography distillation, a value obtained by dividing an integral value of a peak in 30 ppm by an integral value of total peaks in the range of from 0 ppm to 50 ppm for the | 09-29-2011 |