Lubricant composition containing copolymers of polyisobutylenemethacrylate

US11214752B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Szilard Csihony · Ludwigshafen, DE
• Anja Thomas · Ludwigshafen am Rhein, DE
• Kevin J. DeSantis · Valley Cottage, US
• Philippe Rabbat · New York, US
• Andrea Misske · Speyer, DE
• Johannes Barth · Shanghai, CN
• Meik Ranft · Bensheim, DE
• Peter Mueller · Zürich, CH
• Wolfgang Grabarse · Mannheim, DE
• Christoph Fleckenstein · Ludwigshafen am Rhein, DE

Key dates

• Filing date: Jul 19, 2018
• Grant date: Jan 4, 2022
• Expiry date: Aug 29, 2038

Classification

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

Abstract

The present invention is directed to the use of poly(polyisobutylenemethacrylate) as viscosity index improving component in lubricating oil compositions. The invention is further related to lubricating oil compositions comprising poly(polyisobutylenemethacrylate) with enhanced shear stability.