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:
Oct. 19, 2004
Filed:
Dec. 16, 2002
Applicant:
Inventors:
Peter Gideon Gelblum, Philadelphia, PA (US);
Velliyur Nott Mallikarjuna Rao, Wilmington, DE (US);
Charles Joseph Noelke, Wilmington, DE (US);
Norman Herron, Newark, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 1/726 ; C07C 1/738 ; C07C 2/100 ; C07C 2/102 ; C07C 2/119 ; C07C 2/122 ; C07C 1/702 ; C07C 1/704 ; C07C 1/708 ; C07C 2/118 ;
U.S. Cl.
CPC ...
C07C 1/726 ; C07C 1/738 ; C07C 2/100 ; C07C 2/102 ; C07C 2/119 ; C07C 2/122 ; C07C 1/702 ; C07C 1/704 ; C07C 1/708 ; C07C 2/118 ;
Abstract
The present invention relates to the co-pyrolysis of fluoroform and chlorodifluoromethane to form a mixture of useful fluoroolefin and saturated HFCs, notably, tetrafluoroethylene and hexafluoropropylene and CF CHF and CF CHFCF , respectively.