Lubricating compositions

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Heterocyclic ring compound; a heterocyclic ring is one...

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Details

508245, 508248, 508259, 508262, 508269, 508271, 508283, 508558, C10M14112

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active

055588050

ABSTRACT:
Crankcase lubricant compositions for use in automobile or truck engines comprise a major amount of a lubricating oil, added copper present in oil-soluble form and an oil-soluble diamine sulphide. The specified additives provide a highly effective antioxidant system, which may be used, for example, in lubricating oils which are substantially free of phosphorus.

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"Interaction of Sulfur-Containing Additives with Metals" G. N. Novitskaya, E. V. Lebedev, T. I. Sarnavskaya All-Union Scientific Research and Design Institute of the Petroleum Refining and Petrochemical Industry, Plenum Publishing Corporation, 1980, pp. 258-260.
"Vulcanization Characteristics of N,N'-Dithioamines in Furnace Black Stocks", M. C. Throdahl and M. W. Harman, Ind. Eng. Chem., 43, 1951, 421-429.

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