LUBRICATING OIL COMPOSITION

LUBRICATING OIL COMPOSITION

PURPOSE:To obtain a lubricating oil composition of high stability against oxidation by adding a specific amount of dihydroxynaphthalene as an essential component, to the base oil containing ester or ether synthetic lubricating oil. CONSTITUTION:(A) 100 pts.wt. of lubricating base containing more tha...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: YOKOYAMA NOBUO
Format: Patent
Sprache:eng
Schlagworte:
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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Beschreibung
Zusammenfassung:PURPOSE:To obtain a lubricating oil composition of high stability against oxidation by adding a specific amount of dihydroxynaphthalene as an essential component, to the base oil containing ester or ether synthetic lubricating oil. CONSTITUTION:(A) 100 pts.wt. of lubricating base containing more than 15wt.%, based on the base oil, of ester and/or ether synthetic lubricating oil of 3 to 200cst, preferably 10 to 100cst dynamic viscosity at 40 deg.C is combined with (B) 0.01 to 1 pt.wt. of dihydroxynaphthalene, as an essential component, to give the subject lubricant composition. The ester or ether base oil in component (A) is, for example, polyol-ester, ditolyl ether, polyoxyethylene/polyoxypropylene cetyl ether or the like.