Lubricants with a terpolymer made of diester, olefin and acrylate

US11667864B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ivette Garcia Castro · Ludwigshafen, DE
• Wolfgang Grabarse · Mannheim, DE
• Jan Strittmatter · Ludwigshafen am Rhein, DE
• Markus Scherer · Lebach, DE
• Karolin Monz · Ludwigshafen am Rhein, DE
• Rene Koschabek · Weinheim, DE

Key dates

• Filing date: Oct 8, 2019
• Grant date: Jun 6, 2023
• Expiry date: Oct 8, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2030/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Lubricants with a terpolymer made of diester, olefin and acrylate The invention relates to a lubricant comprising a terpolymer which comprises in polymerized forma diester selected from di(C4-C22 alkyl)ester of maleic acid, fumaric acid, 2-methylmaleic acid, 2,3-dimethylmaleic acid, 2-methylfumaric acid, 2,3-dimethylfumaric acid, or mixtures thereof, an olefin selected from C6-C40 alky-1-ene, and an acrylate selected from C4-C40 alkyl (meth)acrylate. The invention further relates to the terpolymer, a process for preparing the terpolymer comprising the step of polymerizing the diester, the olefin, and the acrylate; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the terpolymer.