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:
May. 11, 1982
Filed:
Oct. 09, 1980
Applicant:
Inventors:
Barton Milligan, Coplay, PA (US);
Roland E Grandin, Alburtis, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
564305 ; 564437 ;
Abstract
The conversion of alkyl diaminobenzenes to the alkyl amino benzenes is carried out by contacting the alkyl diamino benzene with hydrogen in the presence of a nonsupported cobalt catalyst. Optionally, the reaction is carried out in the presence of water so that the water insoluble product formed can be separated from the water soluble reactants and by-products.