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:
Aug. 28, 1979
Filed:
Jan. 18, 1978
Applicant:
Inventors:
Georg Blumenfeld, St. Augustin, DE;
Paul Riegger, Troisdorf, DE;
Assignee:
Dynamit Nobel Aktiengesellschaft, Troisdorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ;
Abstract
An improvement in a process for preparing a xylene chlorinated in the nucleus by contacting the xylene with chlorine in the presence of a catalyst, the improvement residing in employing as the catalyst an iron halide or antimony halide and employing a co-catalyst which is an aliphatic, halogenated or nonhalogenated hydrocarbon having an oxygen function.