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US 12,018,225 B2Granted
Succinimide dispersants post-treated with heteroaromatic glycidyl ethers that exhibit good soot handling performance
AssigneeChevron Oronite Company LLC
InventorsPriyank N. Shah, Morgan L. Miller
Life of this patent
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Abstract
A dispersant composition is described. The composition includes a succinimide dispersant composition comprising a reaction product of a hydrocarbyl succinimide and a heteroaromatic glycidyl ether having a structure: wherein R1 is a heteroaryl or heteroarylalkyl group having 4 to 20 carbon atoms, and R2 and R3 are independently a hydrogen atom, an alkyl group, or an aryl group.
Claims26
A dispersant composition comprising:
- a succinimide dispersant composition comprising a reaction product of a hydrocarbyl succinimide and a heteroaromatic glycidyl ether having a Structure I:
- wherein R1 is a heteroaryl or heteroarylalkyl group having 4 to 20 carbon atoms, and R2 and R3 are independently a hydrogen atom, an alkyl group, or an aryl group.
A lubricating oil composition comprising:
- a base oil;
- a succinimide dispersant composition comprising a reaction product of a hydrocarbyl succinimide and a heteroaromatic glycidyl ether having a Structure I:
- wherein R1 is a heteroaryl or heteroarylalkyl group having 4 to 20 carbon atoms, and R2 and R3 are independently a hydrogen atom, an alkyl group, or an aryl group.
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 succinimide dispersant comprising a reaction product of a polyalkenyl succinimide and a heteroaromatic glycidyl ether having a Structure I:
- wherein R1 is a heteroaryl or heteroarylalkyl 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.