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:
Nov. 22, 1977
Filed:
May. 17, 1976
Applicant:
Inventors:
Thomas Wayne Del Pesco, Wilmington, DE (US);
Frank Julian Weigert, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
260581 ; 252437 ; 252439 ; 252461 ; 252462 ; 252463 ; 252464 ; 252465 ; 2524 / ; 252469 ; 252471 ; 252472 ; 252475 ; 252476 ; 252468 ; 252470 ;
Abstract
Aniline and alkyl anilines are obtained by the reaction of anhydrous ammonia with cyclohexane or cyclohexane having up to two lower alkyl substituents at elevated temperatures, such as 300-650.degree. C, in the presence of selected catalysts such as zinc oxide alone or with vanadium, molybdenum, or titanium oxides, etc.; metal compounds such as vanadates, molybdates and titanates; and cadmium sulfide, zinc selenide and the like.