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:
Jan. 04, 1977
Filed:
Nov. 15, 1973
Applicant:
Inventors:
Ernst Schaffner, Ludwigshafen, DT;
Heinz Eilingsfeld, Frankenthal, DT;
Ernst Schefczik, Ludwigshafen, DT;
Manfred Patsch, Ludwigshafen, DT;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen (Rhine), DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260591 ; 260369 ; 260377 ; 2605 / ; 2605 / ;
Abstract
The production of 3-monochloro and 3,6-dichloro derivatives of 2,4,5-trialkylbenzophenones by reaction of 2,4,5-trialkylbenzophenones with chlorine, and the new 3-monochloro-2,4,5-trialkylbenzophenones and 3,6-dichloro-2,4,5-trialkylbenzophenones themselves. The products are starting materials for the production of dyes and pesticides.