N-hydrocarbyl-phenothiazine grease compositions

Details N-hydrocarbyl-phenothiazine grease compositions N-hydrocarbyl-phenothiazine grease compositions

B - Operations, Transporting

60

T

253/58

B60T 8/26 (2006.01)

Patent

CA 1045620

A B S T R A C T A grease composition consisting essentially of a major amount of a lubricating oil thickened to a grease, which composition comprises a minor amount of a mixture which has been obtained by reacting phenothiazine in an inert solvent with a finely divided alkali metal hydroxide, reacting the alkali metal salt of phenothiazine thus obtained with a hydrocarbyl halide and removing the alkali metal halide formed.

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