Abstract:
A method of preparing thickened polyalphaolefin base oil greases comprises (a) producing a simple or complex soap thickener in a quantity of a first polyalphaolefin (PAO) of viscosity lower than that of the desired base oil component in the final grease composition to produce a thickened PAO and (b) adding to the thickened PAO a quantity of a second PAO of viscosity higher than that of the desired base oil component in the final grease composition sufficient to produce a final grease product having the desired base oil viscosity. Reduction in thickener quantity for given grade is achievable.