Lubricant formulations

C - Chemistry – Metallurgy – 10 – M

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C10M 137/10 (2006.01) C10M 129/10 (2006.01) C10M 129/12 (2006.01) C10M 133/12 (2006.01) C10M 141/10 (2006.01)

Patent

CA 2029402

A-17822/-/CGM 361 Lubricant formulations Abstract Formulation containing A) a lubricant and a mixture of B) for example, at least one of the com- pounds 0,0-bis-2-ethylhexylsodium dithiophosphate, 0,0-bis-2-ethylhexyl- sodium thionophosphate, 0,0-bis-2-methylpropylsodium dithiophosphate, 0,0-bis-nonylphenylsodium dithiophosphate or S-[0,0-bis-2-ethylhexylthio- phosphoryl]-potassium thioglycolate, C) at least one compound from the series of the aromatic amines, for example the diphenylamines or pheno- thiazines, 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 Image wherein R4, R5 and A are, for example, alkyl radicals. Such lubricant formulations have a high degree of stability towards oxidative degradation.

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