Low phosphorus- and sulfur-containing lubricating oils

Details Low phosphorus- and sulfur-containing lubricating oils Low phosphorus- and sulfur-containing lubricating oils

1984-12-14

1986-04-15

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 45, 252 475, 252 484, 252 486, 252 488, 252406, C10M15100

Patent

active

045826188

ABSTRACT:
Lubricating oil compositions containing less than about 0.1% by weight of phosphorus are described, and these lubricating compositions comprise a major amount of an oil of lubricating viscosity, and a minor amount of at least one oil-soluble sulfur-containing material which comprises the reaction product of sulfur and a Diels-Alder adduct in a molar ratio less than 1.7:1 wherein the adduct is an adduct of at least one dienophile with at least one aliphatic conjugated diene. Such lubricating oil compositions exhibit improved oxidation-corrosion-inhibiting properties, anti-wear properties, and/or extreme pressure properties. Such lubricating compositions also exhibit improved compatibility with nitrile seals.

REFERENCES:
patent: Re27331 (1972-04-01), Coleman
patent: 2012446 (1935-08-01), Edwards et al.
patent: 3632566 (1972-01-01), Coleman
patent: 3953347 (1976-04-01), Habiby
patent: 4119549 (1978-10-01), Davis
patent: 4148738 (1979-04-01), Liston et al.
patent: 4191659 (1980-03-01), Davis
patent: 4330420 (1982-05-01), White et al.
patent: 4479883 (1984-10-01), Shaub et al.

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