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:
Dec. 18, 1990
Filed:
Mar. 14, 1989
Teruyuki Nagata, Fukuoka, JP;
Akihiro Tamaki, Fukuoka, JP;
Katsuzi Watanabe, Fukuoka, JP;
Akihiro Yamaguchi, Kanagawa, JP;
Mitsui Toatsu Chemicals, Inc., Tokyo, JP;
Abstract
A commercially advantageous process for producing m- or p-aminobenzylamine is provided, which is characterized by subjecting m- or p-nitrobenzaldehyde and ammonia to catalytic reduction in the presence of a reducing catalyst in an organic solvent; in the reduction, when nitrobenzaldehyde and ammonia are in advance made a mixed solution in an organic solvent, and this solution is added in divided manner, the yield being further improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile