Biodegradable lubricating composition and uses thereof, in particular in a bore fluid

US7071150B2 · kind B2 · utility

Assignee

• Total Raffinage Distribution S.A. · FR

Inventors

• Bertrand Genuyt · Versailles, FR
• Michel Janssen · Wezembeek-Oppem, BE
• Rene Reguerre · Le Havre, FR
• Jan Cassiers · Zoersel, BE
• Francois Breye

Key dates

• Filing date: Apr 26, 2001
• Grant date: Jul 4, 2006
• Expiry date: Mar 8, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S507/905
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention concerns a biodegradable lubricating composition, based on mineral hydrocarbon oil and ester, comprising a majority amount of a mineral hydrocarbon fraction substantially free of aromatic compounds, said fraction having a normal paraffin content not more than 10 wt. % and an isoparaffin content not less than 36 wt. %, and a minority amount ranging between 5 and 40 wt. % of at least a fatty acid ester.