| abstract |
Novel synthetic lubricants having high viscosity index are made from lower olefins. These materials have a viscosity above about 2 cS at 100 DEG C. and viscosity index above about 130 and are characterized by internal methyl groups attached to side chain tertiary carbon atoms. Hydrocarbon lubricant can be based on propene feedstock with the resulting oligomer containing less than 2.5 methyl groups per 12 carbon atoms. |