Patent ID: 6432889
Filing Date: 2002-08-13
Classification: C10M,C10N

Abstract:
A grease composition comprising a lubricating base oil, and:(A) 2 to 30 wt % of a thickener selected from the group consisting of a urea compound, a urea-urethane compound, a urethane compound and mixture thereof, (B) 0.1 to 20 wt % of a sulfur-containing extreme pressure agent selected from the group consisting of dihydrocarbyl polysulfide, sulfurized oils and fats and mixtures thereof, and (C) 0.05 to 10 wt % of a sulfonate selected from the group consisting of an over-based zinc sulfonate, an over-based magnesium sulfonate and mixtures thereof, having total base number of 100 to 500 mgKOH/g, each based on a total amount of said grease composition.