Combination of naphthols sulfonates and non-metallic...

Details Combination of naphthols sulfonates and non-metallic... Combination of naphthols sulfonates and non-metallic...

C - Chemistry, Metallurgy

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C23F 11/08 (2006.01) C23F 11/10 (2006.01) C23F 11/12 (2006.01) C23F 11/14 (2006.01) C23F 11/16 (2006.01)

Patent

CA 1037939

RUST INHIBITORS ABSTRACT OF THE DISCLOSURE Lubricating and hydraulic oils are provided rust inhibition by the presence of a mixture of (1) 1-naphthol or 2-naphthol or nitroso derivatives thereof and (2) an alkaline earth metal or Group IIB metal sulfonate. The effect of this mixture is further enhanced by the presence in the oil of a non-ash forming nitrogenous or ester dis- persant such as alkenylsuccinimides, alkenylsuccinic esters, including esters of polyhydric alcohols, alkyllactam amides and the like, each having a long-chain hydrocarbyl group of from 20 to 300 carbon atoms.

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