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:
Jun. 06, 2000
Filed:
Nov. 14, 1997
Applicant:
Inventors:
Assignee:
Degussa-Huls Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502 77 ; 502 85 ; 502 86 ;
Abstract
A method of producing .epsilon.-caprolactam from cyclohexanone in the gaseous phase using MFI catalysts on whose surface symmetrically arranged OH groups are present.