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US 12,110,467 B2Granted
Lubricating oil composition
AssigneeShell USA, Inc.
InventorKengo Suzuki
Life of this patent
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Abstract
The invention provides a lubricating oil composition comprising: a base oil; and coated particles made of nanoparticles and phosphonic acid coating at least a portion of the surface of the nanoparticles.
Claims1
A lubricating oil composition comprising:
- a base oil;
- and in the range of from 0.05 to 0.5% by mass of coated particles made of nanoparticles and phosphonic acid coating at least a portion of the surface of the nanoparticles, wherein the surface coverage of the coated particles by phosphonic acid is 10% or more, and wherein the nanoparticles are alumina.
Dependencies are inferred from the claim text.