Acrylate-olefin copolymers as high viscosity base fluids

US11618797B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Stefan Karl Maier · Ober-Ramstadt, DE
• Dieter Janßen · Groß-Umstadt, DE
• Fabian Ziegler · Darmstadt, DE
• Katrin Schöller · Bad Soden, DE
• Stefan Hilf · Rodenbach, DE

Key dates

• Filing date: Dec 6, 2021
• Grant date: Apr 4, 2023
• Expiry date: Dec 6, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2050/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to acrylate-olefin copolymers and to a method for preparing these polymers. The present invention is also directed to lubricant compositions comprising these copolymers, and to the use of these copolymers as a lubricant additive or a synthetic base fluid in a lubricating oil composition, preferably in a gear oil composition, a transmission oil composition, a hydraulic oil composition, an engine oil composition, a marine oil composition, an industrial lubricating oil composition or in grease.