Antiwear copolymers and lubricant compositions

US11359042B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Sofia Sirak · Frankfurt, DE
• Dmitriy Shakhvorostov · Darmstadt, DE
• Ines BERWING · Groß-Umstadt, DE
• Denise Bingel · Frankfurt, DE

Key dates

• Filing date: May 17, 2017
• Grant date: Jun 14, 2022
• Expiry date: Oct 13, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/25
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to copolymers, to a method for the preparation of these copolymers, to the use of these copolymers for reducing wear in a lubricant composition, to lubricant compositions comprising these copolymers, and to the use of these lubricant compositions as an automatic transmission fluid, a continuously variable transmission fluid, an engine oil, a gear oil, or a hydraulic oil.