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:
Dec. 02, 2014
Filed:
May. 19, 2011
Andrew Joseph Poss, Kenmore, NY (US);
David Nalewajek, West Seneca, NY (US);
Haridasan K. Nair, Williamsville, NY (US);
Michael Van Der Puy, Amherst, NY (US);
Andrew Joseph Poss, Kenmore, NY (US);
David Nalewajek, West Seneca, NY (US);
Haridasan K. Nair, Williamsville, NY (US);
Michael Van Der Puy, Amherst, NY (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Disclosed is a process for preparing cis-1,1,1,4,4,4-hexafluorobutene comprising the steps of (a) reacting CClwith a compound having the formula CFCX═CXH, where each X is independently halogen or hydrogen, to form a compound having the formula CFCXClCXHCCl; (b) fluorinating the compound formed in step (a) to form a compound having the formula CFCXHCXHCF; (c) converting the compound formed in step (b) by a reaction selected from the group consisting of dehydrohalogenation, dehalogenation and both reactions, to form a compound having the formula CFC≡CCF; and (d) catalytically reducing the compound formed in step (c) with hydrogen to form the compound having the formula: