Oil soluble iodides as lubricant antioxidants

Details Oil soluble iodides as lubricant antioxidants Oil soluble iodides as lubricant antioxidants

1995-02-17

1996-10-29

McAvoy, Ellen M.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic nitrogen compound

508167, C10M12518

Patent

active

055694047

ABSTRACT:
The present invention provides for the use of certain oil soluble iodides to enhance the oxidation resistance of lubricating oils and fuels, and for the novel formulated compositions containing these iodides. Oil soluble iodides such as C.sub.16 to C.sub.78 alkyl ammonium as well as oil solubilizable or dispersible iodides such as CoI.sub.2, CuI, KI and NaI in combination with a suitable dispersing agent may be used. Typically a minor amount of additive, from about 40 to about 1000 ppm is used. The additive is effective as an antioxidant in a variety of different types of base and formulated oils.

REFERENCES:
patent: 3066098 (1962-11-01), Nichols
patent: 3256186 (1966-06-01), Greenwald
patent: 3499839 (1970-03-01), Boehm
patent: 3769210 (1973-10-01), Cais et al.
patent: 3865743 (1975-02-01), Sheratte
patent: 4148739 (1979-04-01), Liston et al.
patent: 4156655 (1979-05-01), Clarke et al.
patent: 4426342 (1984-01-01), Dria et al.
Smalheer et al, "Lubricant Additives", Section I-Chemistry of Additives, pp. 1-11, 1967.

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