Sulfonate esters to improve fluoropolymer seal compatibility of lubricant compositions

US9562208B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Kevin J. DeSantis · Valley Cottage, US
• Michael Hoey · Maplewood, US
• Alfred K. Jung · Ridgewood, US
• Stephen Jones · Pomona, US
• Eugene Scanlon · Mamaroneck, US
• Philippe Rabbat · New York, US

Key dates

• Filing date: Jul 2, 2015
• Grant date: Feb 7, 2017
• Expiry date: Jul 2, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/25
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

This disclosure is directed to a lubricant composition having improved compatibility with fluoropolymer seals. The lubricant composition includes a base oil and a sulfonate ester. The disclosure is also directed to an additive package for a lubricant composition that provides improved compatibility with fluoropolymer seals. The additive package includes the sulfonate ester. The disclosure is also directed to a method of improving compatibility of a lubricant composition with a fluoropolymer seal disposed in an internal combustion engine. The sulfonate ester improves the compatibility with fluoropolymer seals of the resultant lubricant composition.