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US 12,577,492 B2Granted
Succinimide dispersants post-treated with aromatic glycidyl ethers that exhibit good soot handling performance
AssigneeChevron Oronite Company LLC
InventorsWilliam Raymond Ruhe, Jr., Seyedeh Mahboobeh Hosseini
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Abstract
A lubricating oil composition is described. The composition includes a base oil, a first succinimide dispersant composition comprising a reaction product of a hydrocarbyl succinimide and an aromatic glycidyl ether having a structure: wherein R1 is an aryl or alkaryl group having 4 to 20 carbon atoms, and R2 and R3 are independently a hydrogen atom, an alkyl group, or an aryl group; and a second succinimide dispersant.
Claims20
A lubricating oil composition comprising:
- a base oil;
- a first succinimide dispersant comprising a reaction product of a hydrocarbyl succinimide and an aromatic glycidyl ether having a Structure I:
- wherein R1 is an aryl or alkaryl group having 4 to 20 carbon atoms, and R2 and R3 are independently a hydrogen atom, an alkyl group, or an aryl group;
- and
- a second succinimide dispersant, wherein the first succinimide dispersant and the second succinimide dispersant are distinct.
2 more elements
A method of reducing soot-induced viscosity increase in an engine, the method comprising:
- introducing a dispersant composition to the engine, wherein the dispersant composition comprises:
- a first succinimide dispersant comprising a reaction product of a hydrocarbyl succinimide and an aromatic glycidyl ether having a Structure I:
- wherein R1 is an aryl or alkaryl group having 4 to 20 carbon atoms, and R2 and R3 are independently a hydrogen atom, an alkyl group, or an aryl group;
- and
- operating the engine.
2 more elements
Dependencies are inferred from the claim text.