Patent ID: 8728992

Claim:
A grease composition comprising a thickener, a base oil and an antistatic agent, wherein the antistatic agent comprises at least one selected from the group consisting of Li(CF 3 SO 2 ) 2 N and Li(CF 3 SO 2 ) 3 C, wherein the thickener is a urea compound selected from the group consisting of a diurea compound prepared by reacting p-toluidine with tolylene diisocyanate and a diurea compound prepared by cyclohexylamine and stearylamine with diphenylmethane diisocyanate, and the base oil is selected from the group consisting of an alkyldiphenyl ether oil, a dipentaerythritol ester oil, a pentaerythritol ester oil and combination thereof, wherein the grease composition has a volume resistivity of less than 50.0×10 7 Ωm.