Thioether-containing phenolic compounds
AssigneeThe Lubrizol Corporation
InventorsYanshi Zhang, Jason J. Hanthorn
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Abstract
Thioether-substituted phenols that are the reaction product of a thioether-substituted alcohol or thioether-substituted amine and a phenol with at least one pendant acyl group and have a ratio of sulfur groups to phenol groups of at least 1:1 and uses for thioether-substituted phenols. Methods of lubricating an internal combustion engine by contacting the internal combustion engine with a lubricating composition comprising a thioether-substituted phenol. Methods of reducing deposit formation and/or corrosion in an engine using a lubricating composition comprising a thioether-substituted phenol.
Claims15
A lubricating composition comprising:
- a. an oil of lubricating viscosity;
- and
- b. a thioether-substituted phenol (“thioether-phenol”) that has the structure:
- wherein R3 is a C1-C20 hydrocarbyl group;
- R4 is a C1-C32 hydrocarbyl group;
- both R6 and R7 are tert-butyl groups;
- and R8 is hydrogen or a C1-C20 hydrocarbyl group.
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Dependencies are inferred from the claim text.