Haze, oxidation, and corrosion resistant diesel engine lubricant

Details Haze, oxidation, and corrosion resistant diesel engine lubricant Haze, oxidation, and corrosion resistant diesel engine lubricant

1986-12-23

1987-11-10

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 515A, 252391, 252392, 252402, 252403, C10M13316, C10M13536

Patent

active

047056428

ABSTRACT:
A haze, oxidation, and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, contains 0.1-5.0 weight percent of a reaction product additive. The reaction product additive is produced by first reacting substantially equimolar amounts of an anhydride compound which is either a dibasic acid anhydride or isatoic anhydride and a hydrocarbon-substituted mono primary amine or ether amine at a temperature range of 50.degree. C.-150.degree. C. to produce an intermediate reaction product. The intermediate reaction product is thereafter further reacted at an elevated temperature with a substantially equimolar amount of a heterocyclic azole or polyalkylene polyamine compound to form the final reaction product.

REFERENCES:
patent: 4326987 (1982-04-01), Hendricks et al.
patent: 4464276 (1984-08-01), Sung et al.
patent: 4536189 (1985-08-01), Sung
patent: 4579673 (1986-04-01), Piotrowski et al.

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