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:
Jan. 13, 1976
Filed:
Sep. 19, 1973
Applicant:
Inventors:
Hirokazu Fukumi, Ooi, JA;
Koryo Itoh, Tokyo, JA;
Yutaka Usubuchi, Tokyo, JA;
Hirataka Itoh, Fujimi, JA;
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
An economically attractive process for industrial production of 4-aminomethyl cyclohexane carboxylic acid-1 in high purity and in high yield is provided. p-Amino benzoic acid is hydrogenated utilizing a ruthenium catalyst in the presence of a specific amount of alkali metal hydroxide. The resulting product is useful as the starting material for polymers or pharmaceuticals.