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. 27, 1981
Filed:
Nov. 16, 1979
Applicant:
Inventor:
Howard P Angstadt, Media, PA (US);
Assignee:
Suntech, Inc., Philadelphia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564422 ; 252472 ; 564428 ;
Abstract
In the process of hydrogenating an aromatic dinitrile to the corresponding di-primary amine in the presence of a catalyst, the improvement of using as catalyst a cobalt catalyst promoted with rhodium where the weight ratio of rhodium to cobalt is 1.0 or less.
Quick Actions:
Angstadt, Howard. (1981). Process and catalyst for hydrogenation of aromatic dinitriles (U.S. Patent No. 4247478). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4247478
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile