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:
Oct. 18, 2022
Filed:
Apr. 11, 2019
Applicant:
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Inventors:
Akifumi Iida, Niigata, JP;
Aoi Yamazoe, Niigata, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 209/48 (2006.01); C07C 51/43 (2006.01); C07C 253/22 (2006.01); C07C 211/18 (2006.01); C07C 255/46 (2006.01);
U.S. Cl.
CPC ...
C07C 209/48 (2013.01); C07C 51/43 (2013.01); C07C 253/22 (2013.01); C07C 211/18 (2013.01); C07C 255/46 (2013.01);
Abstract
A production method for producing a 1,4-cyclohexanedicarboxylic acid derivative, involves subjecting an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to heat concentration, thereby precipitating a 1,4-cyclohexanedicarboxylic acid derivative as a crystal.