Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application

US6214253A · kind A · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• George G. I. Moore · Afton, US
• Richard M. Flynn · Mahtomedi, US
• Miguel A. Guerra · Woodbury, US
• John G. Owens · Woodbury, US

Key dates

• Filing date: Dec 2, 1999
• Grant date: Apr 10, 2001
• Expiry date: Dec 2, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2203/146
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Normally liquid, omega-hydrofluoroalkyl ether compounds (and selected mixtures thereof) have a saturated perfluoroaliphatic chain of carbon atoms interrupted by one or more ether oxygen atoms. The compounds can be prepared, e.g., by decarboxylation of the corresponding fluoroalkyl ether carboxylic acids and are useful, e.g., in cleaning and drying applications.