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:
Jun. 09, 1992
Filed:
Aug. 26, 1991
Applicant:
Inventors:
V N Rao, Wilmington, DE (US);
Frank J Weigert, Wilmington, DE (US);
Leo E Manzer, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
570123 ;
Abstract
A catalyic process is disclosed for producing CCl.sub.3 CF.sub.3 from CHCl.sub.2 CF.sub.3, CH.sub.2 ClCF.sub.3 and/or CH.sub.3 CF.sub.3 by chlorination at elevated temperature. Suitable catalysts for the process include carbon catalysts and catalysts wherein halides of certain metals (Zn, Cu, Cr, Ru, Rh, and/or Pt) are supported on carbon.
Rao, V. (1992). Catalytic process for producing ccl.sub.3 cf.sub.3 (U.S. Patent No. 5120883). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5120883
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile