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:
Feb. 27, 2001
Filed:
Jun. 11, 1996
Applicant:
Inventors:
Paul David Bernard Bujac, Tarporley, GB;
Jane Lesley Butcher, Runcorn, GB;
Assignee:
Imperial Chemical Industries, PLC, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
C07C 1/908 ;
U.S. Cl.
CPC ...
C07C 1/908 ;
Abstract
A process for the production of difluoromethane which comprises contacting bis(fluoromethyl)ether in the liquid phase with boron trifluoride under conditions such that the molar ratio of boron trifluoride to bis(fluoromethyl) ether is at least 0.5:1.