Quaternized terpolymer

US8790426B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ivette Garcia Castro · Ludwigshafen, DE
• Cornelia Roeger-Goepfert · Weinheim, DE
• Wolfgang Grabarse · Mannheim, DE
• Klaus Muehlbach · Havelsee, DE
• Ludwig Voelkel · Schifferstadt, DE
• Harald Boehnke · Mannheim, DE
• Christian Tock · Alzingen, LU

Key dates

• Filing date: Apr 25, 2011
• Grant date: Jul 29, 2014
• Expiry date: May 26, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L2270/026
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Quaternized terpolymer formed from (A) ethylene, (B) C2-C14-alkenyl esters of one or more aliphatic C1-C20-monocarboxylic acids or C1-C24-alkyl esters of acrylic acid or of methacrylic acid and (Cq) ethylenically unsaturated monomers which comprise at least one tertiary nitrogen atom which is partly or fully in quaternized form. The quaternized terpolymer is suitable as a fuel additive for reducing or preventing deposits, for reducing fuel consumption and for minimizing power loss in direct-injection diesel engines, especially in diesel engines with common-rail injection systems.