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. 28, 1997
Filed:
Dec. 15, 1995
Applicant:
Inventor:
Rudolf Bermes, Ludwigshafen, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
534788 ; 534581 ; 534582 ;
Abstract
Described is a process for preparing benzothiazolylazoanilines by diazotization of 2-aminobenzothiazoles in a mixture consisting essentially of phosphoric acid, sulfuric acid and water using customary diazotizing agents and subsequent addition of the reaction mixture to an aqueous acidic solution of the anilines.