Patent · US Active

Lubricant additive composition

US11639481B2 · kind B2 · utility

0Cited by

8References

20Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Tsuyoshi Yuki · Kyoto, JP
Yasuo Arai
Tomohiro Matsuda · Tokyo, JP
Nobuhiro Kishida · Tsukuba, JP

Key dates

Filing date	Jul 13, 2022
Grant date	May 2, 2023
Priority date	—
Expiry date	Jul 13, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2030/02
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An additive composition contains a viscosity index improver and a pour point depressant. A process can be used for preparing the additive composition. The additive composition can be used as a lubricant additive in a lubricating oil formulation, and lubricating oil formulations can contain the additive composition.

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