Turbine oil compositions

Details Turbine oil compositions Turbine oil compositions

C - Chemistry, Metallurgy

10

M

253/55, 253/57

C10M 1/00 (1980.01) C10M 3/00 (1980.01)

Patent

CA 1047477

Turbine Oil Compositions Abstract of Disclosure A lubricating oil composition, particularly suitable for use in steam turbines or gas turbines, is disclosed. The turbine oil composition comprises a major amount of a mineral or synthetic hydrocarbon base oil and an effective amount of a combination of the following materials: triphenyl phosphite or a trialkyl-substituted phenyl phosphite; diphenylamine or alkylated diphenylamine; phenyl .alpha.-naphthylamine, phenyl .beta.-naphthylamine, alkyl or alkaryl substituted phenyl .alpha.-naphthylamine, or alkyl or alkaryl substituted phenyl .beta.-naphthylamine; benzotriazole or alkyl-substituted benzotriazole; partial ester of alkyl or alkenyl succinic anhydride. In a preferred aspect, the turbine oil composition contains additionally an effective amount of a copolymer of N-vinyl-2-pyrrolidone and an .alpha.-olefin.

225814

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