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:
Jul. 17, 1979
Filed:
Jul. 27, 1977
Applicant:
Inventor:
Oskar Weissel, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ; 252458 ; 252461 ; 252470 ; 260351 ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 528 68 ; 528344 ; 528347 ; 528353 ; 528363 ;
Abstract
Cycloaliphatic amines are prepared by catalytically hydrogenating an aromatic amine under elevated pressures and temperatures in the presence of a supported ruthenium catalyst wherein the support is a hydroxide and/or hydrated oxide of chromium and manganese and/or their dehydration products. The catalyst preferably contains from 0.1 to 10% by weight ruthenium based on the total weight of the supported catalyst. Novel cycloaliphatic amines produced according to the process have the formulas ##STR1## wherein THE R substituents are hydrogen or alkyl.