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:
May. 11, 1999
Filed:
Nov. 12, 1997
Applicant:
Inventors:
Shigeru Morita, Settsu, JP;
Yasuji Iwasaki, Settsu, JP;
Assignee:
Daikin Industries Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568615 ; 568614 ; 568674 ;
Abstract
The present inventions provide methods to produce fluorinated vinyl ether by reacting fluorinated carboxylic acid halogenide with a metal compound below the decomposition temperature for the corresponding metal salt in the absence of solvent and then raising the temperature of the produced corresponding metal salt above the decompostion temperature. With these production methods, fluorinated vinyl ether of a high purity can be obtained on an efficient basis.