Patent · US Active

Lubricating oil composition comprising dispersant comb polymers

US10941368B2 · kind B2 · utility

2Cited by

4References

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	Dec 15, 2017
Grant date	Mar 9, 2021
Priority date	—
Expiry date	Dec 15, 2037

Classification

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

Abstract

Selected comb polymers contain specified amounts of macromonomer and nitrogen-containing (meth)acrylates. Lubricant compositions can contain such comb polymers. The selected comb polymers can be used as solubilizers in lubricant compositions, especially in engine oil (EO) compositions.

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