Copolymers and their reaction products with amines as fuel and lubricant additives

US6512055B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Wolfgang H. H. Gunther · Hersbruck, DE
• Knut Oppenlander · Ludwigshafen, DE
• Walter Denzinger · Speyer, DE
• Heinrich Hartmann · Schifferstadt, DE
• Helmut Mach · Heidelberg, DE
• Harald Schwahn · Wiesloch, DE
• Hans Peter Rath · Havelsee, DE

Key dates

• Filing date: May 4, 2001
• Grant date: Jan 28, 2003
• Expiry date: Jun 2, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10M2217/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Copolymers I carrying functional groups and comprisinga) 20-60 mol % of at least one monoethylenically unsaturated C4-C6-dicarboxylic acid or an anhydride thereof,b) 10-70 mol % of at least one oligomer of propene or of a branched 1-olefin of 4 to 10 carbon atoms, having an average molecular weight Mw of from 300 to 5000, andc) 1-50 mol % of at least one monoethylenically unsaturated compound which is copolymerizable with the monomers a) and b),a process for their preparation, oil-soluble reaction products obtainable therefrom by reaction with an amine and the use of said reaction products as additives for lubricants and fuels.