Patent ID: 6627779
Filing Date: 2003-09-30
Classification: C10G,C10M,C10N

Abstract:
A process for preparing a blended lube base oil comprising the steps of:a) blending: i) at least one highly paraffinic Fischer-Tropsch derived lube base stock having a viscosity of greater than 3 cSt when measured at 40Â° C., having a branching index of less than 5, and having an average length of alkyl side branches of less than 2 carbon atoms; and ii) at least one base stock composed of alkylaromatics, alkylcycloparaffins, or mixtures thereof and having a viscosity of greater than 2 cSt when measured at 40Â° C., wherein base stock (ii) is present in an amount of from about 1 wt % to about 50 wt %; and b) isolating the blended lube base oil.