LUBRICATING OIL COMPOSITION

PROBLEM TO BE SOLVED: To provide a fuel-saving lubricating oil composition having excellent abrasion preventing performance. SOLUTION: The lubricating oil composition is produced by dissolving or dispersing (a) 0.01-0.3 wt.% nitrogen-containing ash-free dispersing agent in terms of nitrogen in the a...

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Bibliographic Details
Main Authors ISOZAKI YOSHIBUMI, HIRANO SATOSHI, TAKEOKA KENJI
Format Patent
LanguageEnglish
Published 15.07.2004
Edition7
Subjects
CHEMISTRY
FUELS
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS
LUBRICANTS
LUBRICATING COMPOSITIONS
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Summary:PROBLEM TO BE SOLVED: To provide a fuel-saving lubricating oil composition having excellent abrasion preventing performance. SOLUTION: The lubricating oil composition is produced by dissolving or dispersing (a) 0.01-0.3 wt.% nitrogen-containing ash-free dispersing agent in terms of nitrogen in the agent, (b) 0.05-0.5 wt.% alkali metal salt or alkaline earth metal salt of an alkyloxybenzenesulfonic acid in terms of the metal content, (c) 0.02-0.08 wt.% zinc dialkyldithiophosphate in terms of phosphorus content and (d) 0.02-0.2 wt.% molybdenum-containing compound in terms of the molybdenum content in a base oil having an evaporation loss of ≤17 wt.% and a kinematic viscosity of 2-6 mm2/s at 100°C and composed of a mineral oil or a synthetic oil having a lubricating oil viscosity. The ratio of the metal content of the component (b) to the molybdenum content of the component (d) is within the range of 1:4 to 20:1. COPYRIGHT: (C)2004,JPO&NCIPI
Bibliography:Application Number: JP20020368806