Process for manufacturing perfluoroolefins by pyrolysis of perfluorocarbons in the presence of hydrogen

US9139496B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Klaus Hintzer · Woodbury, US
• André Streiter · Mühldorf a. Inn, DE
• Gunther Kampf
• Kai H. Lochhaas · Neuötting, DE
• Michael Jürgens · Rheydt, DE
• Oleg Shyshkov · Burgkirchen an der Alz, DE
• Tilman C. Zipplies · Burghausen, DE
• Jürgen Troe · Oebisfelde, DE
• Klaus Luther · Oebisfelde, DE

Key dates

• Filing date: Jun 27, 2011
• Grant date: Sep 22, 2015
• Expiry date: Nov 25, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C17/361
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process is described of pyrolyzing at least one perfluorinated hydrocarbon, or a material containing at least one perfluorinated hydrocarbon, in the presence of hydrogen, to yield a reaction mixture containing difluorocarbene.