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:
Apr. 14, 1998
Filed:
Aug. 30, 1995
Applicant:
Inventors:
Pascal Pennetreau, Rixensart, BE;
Francine Janssens, Vilvoorde, BE;
Assignee:
Solvay (Societe Anonyme), Brussels, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
570167 ; 570165 ; 570166 ; 570168 ; 570169 ;
Abstract
Process for the hydrofluorination of chloro(fluoro)butane of general formula C.sub.4 H.sub.5 Cl.sub.x F.sub.5-x in which x=1 to 5, by means of hydrogen fluoride and in the presence of a catalyst chosen from the derivatives of metals of groups IIIa, IVa, IVb, Va, Vb and VIb of the Periodic Table of the elements.