Turbine oil compositions

Abstract From the Canadian patent

Turbine Oil Compositions, Abstract of Disclosure Lubricating oil compositions, particularly suitable for use in steam turbines or gas turbines are dis-, closed. The turbine oil compositions comprise a major amount of a mineral or synthetic hydrocarbon base oil and a minor, but effective, amount of a combination of copolymer of N-vinyl-2-pyrrolidone and an .alpha.-olefin triphenyl, phosphite or a trialkyl-substituted phenyl phosphite and, benzotriazole or alkyl-substituted benzotriazole. The turbine oil compositions may contain, additionally a, small, but effective, amount of tricresyl phosphate or a partial ester of an alkyl or alkenyl succinic anhydride.