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. 20, 2012
Filed:
Sep. 04, 2007
Applicants:
Barry Asher Mahler, Glen Mills, PA (US);
Xuehui Sun, Swedesboro, NJ (US);
Velliyur Nott Mallikarjuna Rao, Wilmington, DE (US);
Inventors:
Barry Asher Mahler, Glen Mills, PA (US);
Xuehui Sun, Swedesboro, NJ (US);
Velliyur Nott Mallikarjuna Rao, Wilmington, DE (US);
Assignee:
E I du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 17/266 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for making HFC-236cb is disclosed. The process comprises reacting TFE with HFC-32 in the presence of at least one co-product and a suitable catalyst to produce a product mixture comprising HFC-236cb, wherein the total amount of the at least one co-product is at least 10 ppmv based on the total amount of the tetrafluoroethylene, the difluoromethane and the at least one co-product.