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. 17, 2022
Filed:
Apr. 25, 2019
Applicant:
Daikin Industries, Ltd., Osaka, JP;
Inventor:
Yuzo Komatsu, Osaka, JP;
Assignee:
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 17/20 (2006.01); B01J 23/26 (2006.01); C07C 17/25 (2006.01); C07C 19/08 (2006.01); C07C 21/18 (2006.01);
U.S. Cl.
CPC ...
C07C 17/20 (2013.01); B01J 23/26 (2013.01); C07C 17/25 (2013.01); C07C 19/08 (2013.01); C07C 21/18 (2013.01);
Abstract
This invention relates to a method for preparing 1,2-difluoroethylene and/or 1,1,2-trifluoroethane, comprising a step of performing at least one fluorination reaction by bringing at least one halide selected from the group consisting of haloethanes represented by general formula (1) CHXXCHX(wherein X, X, and Xare the same or different, and represent Cl, Br, or F) and haloethylenes represented by general formula (2) CHX═CHX(wherein Xand Xare the same or different, and represent Cl, Br or F, with the proviso that the case in which Xand Xare both F is excluded).