Comb polymers comprising imide functionality

US11072677B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Katrin Schöller · Bad Soden, DE
• Jennifer Holtzinger · Frankfurt am Main, DE
• Fabian Ziegler · Darmstadt, DE
• Klaus Schimossek · Bensheim, DE
• Frank Lauterwasser · Kretz, DE

Key dates

• Filing date: Jul 12, 2018
• Grant date: Jul 27, 2021
• Expiry date: Oct 6, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2060/09
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Selected comb polymers include specified amounts of macromonomer and imide functionalization. Further, a method is useful for the preparation of such comb polymers. Lubricant compositions including such comb polymers are useful for reducing wear and fuel consumption of lubricant compositions, especially of engine oil (EO) compositions.