The rust preventive oil composition according to the present invention contains at least one kind of sulfonate of 1 to 10% by mass selected from a group consisting of an alkaline metal sulfonate, an alkaline earth-metal sulfonate (with the exception of barium sulfonate) and an amine sulfonate based on the total weight of the composition in at least one kind of base oil selected from a group consisting of a mineral oil and a synthetic oil, and the contents of barium, zinc, chlorine and lead are each 1000ppm by mass or less based on the total weight by element conversion of the composition, and the content of a compound having a group represented by the following general formula (1):
[wherein R1 represents an alkyl group having 1 to 24 carbon atoms , R2 represents an alkylene group having 2 to 4 carbon atoms, m represents an integer of 1 to 5 and n represents an integer of 1 to 6]
is 1000ppm by mass or less based on the total weight of the composition.
LUBRICATING OIL ADDITIVE AND LUBRICATING OIL COMPOSITION CONTAINING SAME
申请人:Adeka Corporation
公开号:EP1717298A1
公开(公告)日:2006-11-02
The present invention provides a lubricating oil additive with excellent cleaning performance which does not include metal components such as calcium or magnesium, and a lubricating oil composition containing the same. The lubricating oil additive according to the present invention is characterized by containing a quaternary ammonium salt having a base number of at least 10 mgKOH/g. Examples of such a quaternary ammonium salt include quaternary ammonium salts obtained by subjecting counter anions in cationic surfactants such as tetraalkylammonium chloride and tetraalkylammonium sulfate to salt-exchange.
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 %CA of not more than 2, %CP/%CN of not less than 6 and an iodine value of not more than 2.5.
The present invention provides a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having %CA of not more than 2, %CP/%CN of not less than 6 and an iodine value of not more than 2.5.
The present invention provides a compressor oil composition, which comprise a lubricating oil base oil having %CA of not more than 2, %CP/%CN of not less than 6 and an iodine value of not more than 2.5.