The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 1991
Filed:
Dec. 19, 1989
James L Webster, Parkersburg, WV (US);
Swiatoslaw Trofimenko, Wilmington, DE (US);
Paul R Resnick, Wilmington, DE (US);
Douglas W Bruhnke, Landenberg, PA (US);
Jan J Lerou, Chadds Ford, PA (US);
William H Manogue, Newark, DE (US);
Leo E Manzer, Wilmington, DE (US);
Elrey L McCann, Mendenhall, PA (US);
Steven H Swearingen, Wilmington, DE (US);
James A Trainham, Newark, DE (US);
Cristobal Bonifaz, Conway, MA (US);
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
The present invention relates to multistep syntheses of hexafluoropropylene from hexachloropropylene. In all these syntheses the first step is a fluorination of the starting material; later steps convert the initial products to CF.sub.3 --CFCl--CF.sub.3, which is dehalogenated to the desired product.