Patent ID: 6713438
Filing Date: 2004-03-30
Classification: C10M,C10N

Abstract:
A lubricant having improved antiwear properties, which comprises:about 50 wt % to 90 wt % of a basestock comprising at least one member selected from the group consisting of a mineral-derived oil, a poly alpha olefin (PAO), and a hydroisomerized Fischer-Tropsch wax (F-T wax), wherein the basestock has a viscosity from 1.5 to 12 cSt (100Â° C.), about 0.1 wt % to about 20 wt % of a first polymer, and, about 0.1 wt % to 5 wt % of a second polymer of differing molecular weights blended into the liquid lubricant basestock component, the first polymer being of lower molecular weight than the second polymer and more highly viscoelastic than the second polymer, having a viscosity from 20 to 3000 cSt and produced by the polymerization of an alpha olefin in the presence of a reduced metal catalyst, the second polymer having a molecular weight of at least 100,000 and having viscosity thickening properties when blended with the liquid basestock.