Use of polyalkyl (meth)acrylates in lubricating oil compositions

US8754018B2 · kind B2 · utility

Assignee

• Evonik RohMax Additives GmbH · DE

Inventors

• Markus Scherer · Lebach, DE
• Klaus Hedrich · Reichelsheim, DE
• Michael Alibert · Darmstadt, DE
• Michael Mueller · Bensheim, DE
• Roland Schweder · Darmstadt, DE

Key dates

• Filing date: Feb 24, 2005
• Grant date: Jun 17, 2014
• Expiry date: Feb 11, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to the use of polyalkyl ester for reducing the temperature in a lubricating oil composition. The polyalkyl ester has a specific viscosity ηsp/c of between 5 and 30 ml/g, measured in chloroform at 25° C.