Aryl diurea-thickened greases

C - Chemistry – Metallurgy – 10 – M

Patent

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253/104

C10M 115/08 (2006.01)

Patent

CA 1082166

ARYL DIUREA-THICKENED GREASES Abstract of the Disclosure A grease composition having improved yield, dropping point, and functional life when used in an antifriction bearing at elevated temperatures comprising a base oil of lubricating viscosity thickened with a specially-defined aryl diurea obtained as the result of reacting critical molar ratios of a mixture of p-toluidine and p-chloroaniline with a toluene diisocyanate. In an espeically preferred embodiment the grease composition addi- tionally contains precipitated calcium carbonate in an amount sufficient to obtain a grease having improved e.p.(extreme pressure) properties and an extended functional life.

285612

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