Patent · US Active

Lubricating oil additives

US11028333B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

Infineum International Limited · GB

Inventors

Peter J. Dowding · Bloomfield Hills, US
Elin J. Eis · Lessebo, SE

Key dates

Filing date	Jan 17, 2020
Grant date	Jun 8, 2021
Priority date	—
Expiry date	Feb 7, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2040/25
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.