Michael J Lacey

US Patent:

20080171675, Jul 17, 2008

Filed:

May 26, 2006

Appl. No.:

11/667237

Inventors:

Lisa Ching Yeh - Marlton NJ, US
Elizabeth Stavens - Seabrook TX, US
Robert R. Palmer - Bethlehem PA, US
Michael Lacey - Pearland TX, US
Lei Zhang - Vienna VA, US

International Classification:

C10M 101/02
C10M 105/02

US Classification:

508110, 208 18

Abstract:

This invention relates to basestocks and base oils with improved low temperature properties and formulated lubricant compositions or functional fluids created by blending at least one such lube basestock with at least one component selected from dispersants, detergents, wear inhibitors, antioxidants, rust inhibitors, demulsifiers, extreme pressure agents, friction modifiers, multifunction additives, viscosity index improvers, pour point depressants, and foam inhibitors. In particular the invention relates to dewaxed lube basestocks having a Free Carbon Index of less than 4.3 and an Epsilon Carbon mole % of less than 14%. Formulated engine oils using such dewaxed basestocks exhibit improved low temperature properties as may be measured by the Mini Rotary Viscometer test.