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:
Jan. 31, 1995
Filed:
Apr. 19, 1993
Applicant:
Inventors:
Duncan C Woodcock, Frodsham, GB;
Brian T Grady, Widnes, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07L / ; C07L / ;
U.S. Cl.
CPC ...
568683 ; 570142 ;
Abstract
A process for the production of bis(fluoromethyl)ether which comprises contacting formaldehyde with hydrogen fluoride in the presence of an essentially water-immiscible solvent for the ether. The bis(fluoromethyl)ether may be converted to difluoromethane, optionally after separation from the solvent, preferably by heating the bis(fluoromethyl)ether to elevated temperature in the presence of a metal, metal oxide, metal fluoride or metal oxyfluoride catalyst.
Woodcock, Duncan. (1995). Production of bis(fluoromethyl) ether and difluoromethane (U.S. Patent No. 5386064). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5386064
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile