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:
May. 26, 1987
Filed:
Dec. 13, 1984
Applicant:
Inventor:
Rudolf Bermes, Ludwigshafen, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ;
U.S. Cl.
CPC ...
546101 ; 8658 ; 1062 / ;
Abstract
Novel compounds of the formula I ##STR1## where Cat.sym. is a secondary or tertiary alkylammonium cation of 16 to 30 carbon atoms and the aromatic rings can be further substituted by chlorine, bromine, methyl, methoxy or nitro, are useful for the preparation of low-electrolyte powder and liquid formulations or for coloring organic media.