Method for producing polyalkenyl succinimide products, novel polyalkenylsuccinimide products with improved properties, intermediate products

US8263535B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Stephan Hueffer · Ludwigshafen, DE
• Peter Schwab · Bad Dürkheim, DE
• Klaus Fischer · Speyer, DE
• Thomas Berg · Ludwigshafen, DE
• Helmut Mach · Heidelberg, DE

Key dates

• Filing date: May 14, 2002
• Grant date: Sep 11, 2012
• Expiry date: Feb 28, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/28
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, is proposed, in which a polyalkene is reacted with a maleic acid, maleic anhydride or a functional derivative thereof to give a polyalkenylsuccinic anhydride and the polyalkenylsuccinic anhydride is then reacted with an oligoamine or polyamine, the polyalkenylsuccinic anhydride either Novel polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, and fuel additives are also proposed.