Lubricant formulations

Details Lubricant formulations Lubricant formulations

1990-10-31

1992-12-01

Hearn, Brian E.

Compositions

Electrolytes for electrical devices

252 325, 252 466, C10M13536

Patent

active

051678446

ABSTRACT:
Formulation containing A) a lubricant and a mixture of B) for example, at least one of the compounds O,O-bis-2-ethylhexylsodium dithiophosphate, O,O-bis-2-ethylhexylsodium thionophosphate, O,O-bis-2-methylpropylsodium dithiophosphate, O,O-bis-nonylphenylsodium dithiophosphate or S-[O,O-bis-2-ethylhexylthiophosphoryl]-potassium thioglycolate, C) at least one compound from the series of the aromatic amines, for example the diphenylamines or phenothiazines, and D) at least one compound from the series of the cyclic sterically hindered amines, the acyclic sterically hindered amines and the phenols of the formula ##STR1## wherein R.sup.4, R.sup.5 and A are, for example, alkyl radicals. Such lubricant formulations have a high degree of stability towards oxidative degradation.

REFERENCES:
patent: 2758086 (1956-08-01), Stuart
patent: 3412118 (1968-11-01), Kujawa et al.
patent: 3791985 (1974-02-01), Eiseman
patent: 3951829 (1976-04-01), Mullen et al.
patent: 4085132 (1978-04-01), Park et al.
patent: 4889883 (1989-12-01), Rosenberg et al.
patent: 4917809 (1990-04-01), Zinke et al.
Auto, Motor, Sport 13/89.

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