Lubricant compositions based on block copolymers and processes for making
Provided are lubricant compositions with improved oxidative stability and frictional and wear resistance properties for use in engine oil applications. The lubricant compositions include: i) a first base stock selected from a Group I base stock, a Group II base stock or a combination thereof at 50 to 80 wt %; ii) a block copolymer at 1 to 10 wt %; iii) a viscosity modifier at 3 to 15 wt % selected from polymers and copolymers of methacrylate, butadiene, olefins and alkylated styrenes; and iv) an additive package including a combination of antioxidants, dispersants, detergents, friction modifiers and antiwear agents at 2 to 30 wt %.
ExxonMobil Research and Engineering Company
C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C
C10M C10M C10M C10M C10M C08G C10M C10N C10N C10M C10M C10M C10M C10N C10N C10N C10N C10N C10N C10M C10M C10M C10M C08G C08G C10N C08G C10M C08G C10M
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Charles Lambert Benjamin Daniel Abhimanyu Onkar Nicole D. Jacob Joseph
Baker, Jr. Eirich Patil Vaughn Habeeb