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US 9,868,919 B2Granted
Lubricating composition containing lewis acid reaction product
AssigneeThe Lubrizol Corporation
InventorsEwan E. Delbridge, Yanshi Zhang, Jody A. Kocsis
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Abstract
The invention provides a lubricating composition comprising: an oil of lubricating viscosity and a reaction product of a monovalent to tetravalent inorganic Lewis acid and a hydroxyl terminated polyether (or glycol), wherein the mole ratio of hydroxyl terminated polyether (or glycol) to Lewis acid is 1:1 or greater. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition.
Claims15
A lubricating composition comprising;
- a. an oil of lubricating viscosity, and
- b. a reaction product of a Lewis acid comprising a tetravalent D-block transition metal and a hydroxyl terminated polyether, wherein the mole ratio of the hydroxyl terminated polyether to the inorganic Lewis acid is 1:1 or greater.
Dependencies are inferred from the claim text.