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. 17, 1991
Filed:
Feb. 09, 1989
Applicant:
Inventors:
Yasushi Hara, Shin-nanyo, JP;
Nobumasa Suzuki, Shin-nanyo, JP;
Yukio Ito, Kudamatsu, JP;
Kazuhiko Sekizawa, Shin-nanyo, JP;
Assignee:
Tosoh Corporation, Shin-nanyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564479 ; 502353 ; 564480 ;
Abstract
A process for producing an alkylenamine, which comprises reacting ammonia and/or a polyalkylene polyamine with an alkanolamine to obtain an alkylenamine having an increased number of alkylene chains over the ammonia and/or the alkylenamine as starting material, wherein a catalyst having a niobium-containing substance supported on a carrier is used for the reaction.