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:
Oct. 08, 1991
Filed:
Apr. 27, 1989
Erwin Dietz, Kelkheim, DE;
Frank Prokschy, Frankfurt am Main, DE;
Hoechst Aktiengesellschaft, Frankfurt, DE;
Abstract
Derivatives of 9-oxo-1,9a,10-triaza-9-hydroanthracene of the general formula I ##STR1## with the exception of three compounds in which R denotes a hydrogen atom, halogen atom, an alkyl-C.sub.1 -C.sub.4, alkoxy-C.sub.1 -C.sub.4 or denotes a trihalogenomethyl group, a --CO--NH.sub.2, --CO--NH--(alkyl-C.sub.1 -C.sub.4) or --CO--N(alkyl-C.sub.1 -C.sub.4).sub.2 group or phenyl, alkyl-C.sub.1 -C.sub.4, --NH.sub.2, --NH(alkyl-C.sub.1 -C.sub.4), --N(alkyl-C.sub.1 -C.sub.4).sub.2 or an alkylene-C.sub.1 -C.sub.4 --OSO.sub.3 H group, bound via the bridge member --S--, --SO--or --SO.sub.2 --, a or a fused-on 4- to 7-membered isocycle or heterocycle, which itself can be part of a polycyclic system, from the series consisting of naphthalene, acenaphthene, phenanthrene and indole, x denotes an integer from 1 to 4, where for x>1 R can be identical or different, and z denotes a fused-on 4- to 7-membered isocycle or heterocycle, which itself can be part of a polycyclic system, from the series consisting of naphthalene, acenaphthene, phenanthrene and indole, in which each of the 4- to 7-membered isocycles or heterocycles and each of the polycyclic systems mentioned can be substituted, processes for their preparation and their use for the coloring of natural or synthetic materials.