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, 2018
Filed:
Feb. 06, 2017
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Xu Wang, Chiyoda-ku, JP;
Shinji Terazono, Chiyoda-ku, JP;
Masahiro Kanda, Chiyoda-ku, JP;
Satoshi Kawaguchi, Chiyoda-ku, JP;
Mitsugu Kasagawa, Chiyoda-ku, JP;
ASAHI GLASS COMPANY, LIMITED, Chiyoda-ku, JP;
Abstract
A hydrofluoroolefin is produced by reacting a chlorofluoroolefin with hydrogen in the presence of a platinum group metal catalyst supported on a carbon carrier to obtain a hydrofluoroolefin. The chlorofluoroolefin is represented by formula (1): CZX═CClY, where X is F or Cl, Y is F, Cl or H, and Z is F or CF. The hydrofluoroolefin is represented by formula (2): CZX' ═CHY′, where X′ is F when X is F, or X′ is H when X is Cl, Y′ is F when Y is F, or Y′ is H when Y is Cl or H, and Z is the same as Z in the formula (1). The carbon carrier has acidic functional groups, and the total acidic functional group amount in the carbon carrier is at most 50 μmol/g.