Random copolymers for use as base oils or lubricant additives

US11453837B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Holger Pletsch · Essen, DE
• Emily Clare Schweissinger · Dortmund, DE
• Hanna Spohr · Moers, DE
• Sebastian Reimann · Wesseling, DE
• Lars Pera · Hammerstein, DE
• Marius Weiland · Heiden, DE
• Boris Eisenberg · Heppenheim, DE
• Dmitriy Shakhvorostov · Darmstadt, DE

Key dates

• Filing date: Oct 23, 2019
• Grant date: Sep 27, 2022
• Expiry date: Oct 23, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2030/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to random copolymers comprising monomers derived from conjugated dienes and alkyl (meth)acrylates, a method for manufacturing the copolymers, lubricant compositions comprising the copolymers, and the use of the copolymers as additives for lubricant compositions or as a base oil for lubricant compositions. The copolymers are favorably used for driving system lubricating oils, hydraulic oils, engine oils and industrial oil formulations.