Perfluorinated 1-alkoxypropenes in dielectric fluids and electrical devices

US11551827B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Sean M. Smith · Woodbury, US
• Michael G. Costello · Afton, US
• Klaus Hintzer · Woodbury, US
• Markus E. Hirschberg · Mühldorf, DE
• William M. Lamanna · Stillwater, US
• John G. Owens · Woodbury, US

Key dates

• Filing date: Dec 12, 2018
• Grant date: Jan 10, 2023
• Expiry date: Sep 14, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H2033/566
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A dielectric fluid (i.e., dielectric composition) that includes a perfluorinated 1-alkoxypropene compound represented by the following general Formula (I): RfO—CF═CFCF3 wherein Rf is CF3— or CF3CF2—. Such dielectric fluids may be useful in various electrical devices.