Polyoxyalkylene monoethers with reduced water affinity

US6821308B2 · kind B2 · utility

Assignee

• Bayer Antwerpen · BE

Inventors

• George Combs · McMurray, US
• Kenneth G. McDaniel · Austin, US

Key dates

• Filing date: Apr 2, 1997
• Grant date: Nov 23, 2004
• Expiry date: Apr 2, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L1/2383
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Oleophilic polyoxyalkylene monoethers having reduced water affinity are disclosed. The monoethers have a hydrocarbyl residue, a polyoxyalkylene moiety, and a hydroxyl end group. The monoethers contain less than about 6 mole percent of alkoxylated unsaturates, and preferably less than about 5 mole percent of polyoxyalkylene diols. The monoethers offer substantial advantages for fuel compositions, particularly reduced water affinity. By using deposit-control additives based on the monoethers, formulators can offer better fuels for cleaner engines.