Acrylate-olefin copolymers as high viscosity base fluids

US11981877B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Emily Clare Schweißinger · Dortmund, DE
• Stefan Karl Maier · Ober-Ramstadt, DE
• Katja Nothdurft · Haltern am See, DE
• Yvonne Groß-Onnebrink · Raesfeld, DE
• Dieter Janßen · Groß-Umstadt, DE
• Holger Pletsch · Essen, DE
• Stefan Hilf · Rodenbach, DE
• Denise Kleinschmidt · Dressendorf, DE
• Sebastian Babik · Düsseldorf, DE

Key dates

• Filing date: May 22, 2023
• Grant date: May 14, 2024
• Expiry date: May 22, 2043

Classification

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

Abstract

Acrylate-olefin copolymers and a method for the preparation of these copolymers are provided. Lubricant compositions can contain the aforementioned copolymers. The copolymers are useful 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.