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. 21, 2023
Filed:
Apr. 11, 2019
Applicant:
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Inventors:
Aoi Yamazoe, Niigata, JP;
Yuta Ohmori, Kamisu, JP;
Akifumi Iida, Niigata, JP;
Yutaka Kanbara, Niigata, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/36 (2006.01); C07C 209/48 (2006.01); C07C 253/22 (2006.01); C07C 51/41 (2006.01);
U.S. Cl.
CPC ...
C07C 51/36 (2013.01); C07C 51/41 (2013.01); C07C 209/48 (2013.01); C07C 253/22 (2013.01);
Abstract
A production method for a cyclohexanedicarboxylic acid compound, having a step of obtaining a cyclohexanedicarboxylic acid compound or an aqueous ammonia solution of a cyclohexanedicarboxylic acid compound by bringing a phthalic acid compound in an aqueous ammonia solution into contact with hydrogen in the presence of a fixed bed catalyst in a reactor.