Abstract:
A synergistic mixture comprising from 1 to 99.9% by weight of compounds having structural elements (I) in which the free valencies on the oxygen atom and on the nitrogen atom may be combined to form a five-, six- or seven-membered ring and the benzene ring may also bear substituents at one or more of the free positions, and from 0.1 to 99% by weight of sulfur-containing organic compounds with antioxidant action. This synergistic mixture is suitable as a stabilizer for stabilizing inanimate organic material, especially mineral oil products and fuels, against the action of light, oxygen and heat.
Abstract:
PROBLEM TO BE SOLVED: To provide a lubricating oil composition for wet clutches which, even when used in a 4-stroke internal combustion engine for a two-wheel motor vehicle, suppresses the formation of insolubles such as sludge and varnish due to deterioration and the clogging of the wet clutch with the insolubles and is keeping the frictional characteristics and power transmission performance of the wet clutch sufficiently over a long term. SOLUTION: The lubricating oil composition for wet clutches is prepared by formulating a lubricating oil base oil containing not less than 90 mass% saturated components in which cyclic saturated components account for 40 mass% or more and having a viscosity index of 110 or higher and an iodine value of 2.5 or smaller with, based on the entire amount of the composition, 0.5-3 mass% ashless antioxidant and 3-12 mass% ashless dispersant. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a compressor oil composition that can achieve both thermal/oxidative stability and sludge resistance at a high level even when used under a high temperature condition. SOLUTION: The compressor oil composition comprises a lubricating base oil having %C A of 2 or less, a ratio of %C P /%C N of 6 or more and an iodine number of 2.5 or less, an antioxidant and an antimisting agent. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation:要解决的问题:提供即使在高温条件下使用也能够高水平地实现热/氧化稳定性和耐污泥性的压缩机油组合物。 解决方案:压缩机油组合物包含%C A SB>为2以下的润滑油基础油,%C /%C%SB 6/6以上,碘值为2.5以下,抗氧化剂和防雾剂。 版权所有(C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lubricating oil composition excellent in viscosity increase-inhibiting property and capable of achieving sufficient long-draining, an anti-oxidant suitable for obtaining such the lubricating oil composition, and a method for capable of sufficiently inhibiting the viscosity increase accompanying with the use of the lubricating oil. SOLUTION: This lubricating oil composition contains lubricating oil base oil, an organotungsten compound and an ashless anti-oxidant. Also, the anti-oxidant composition contains the organotungsten compound and the ashless anti-oxidant. Further, the method for inhibiting the viscosity increase of the lubricating oil is provided by incorporating the organotungsten compound and ashless anti-oxidant in the lubricating oil. COPYRIGHT: (C)2007,JPO&INPIT