Exxon Chemical Patents, Inc.

Yasuhiko Yoneto

Jack Ryer

Robert D Lundberg

Antonio Gutierrez

Raymond F Watts

Ricardo A Bloch

John E Chandler

Harold Shaub

Harold E Bachman

Richardo A Bloch

Friction modifier additives useful in power transmission compositions, particularly automatic transmission fluids, is disclosed. The additive comprises Component-1 alone formed by condensing a polyamine, such as tetraethylene pentamine, with an aliphatic mono acid, such as isostearic acid, or a mixture, and/or salt, of Component-1 and a Component-2 wherein Component-2 is an acid ester formed by reacting a heterodialkanol such as thiobisethanol and a hydrocarbyl substituted dicarboxylic acid or anhydride, such as octadecenyl succinic anhydride.

Amide containing friction modifier for use in power transmission fluids

The fuel economy of an internal combustion engine can be improved by adding to the lubricating oil used to lubricate the crankcase of said engine a synergistic blend of amine/amide and ester/alcohol friction modifying agents, for example, by reacting (a) a carboxylic acid, such as oleic acid and/or isostearic acid with an amine, such as diethylene triamine or tetraethylene pentamine, and (b) glycerine monooleate and/or glycerine monoricinoleate.

Synergistic blend of amine/amide and ester/alcohol friction modifying

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Fujisawa, Japan

Yasuhiko Yoneto