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:
Sep. 16, 1997
Filed:
May. 15, 1995
Applicant:
Inventors:
Jordi Berenuger Barra, Barcelona, ES;
Herbert Holliger, Allschwil, CH;
Jose Rocas Sorolla, Barcelona, ES;
Assignee:
Clariant Finance (BVI) Limited, Tortola, VG;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
534684 ; 8437 ; 8681 ; 8685 ; 8919 ; 534688 ;
Abstract
Compounds of the formula ##STR1## iron complexes thereof and mixtures of such iron complexes, wherein D is a monocyclic or bicyclic aromatic diazo component radical of the benzene series containing one --SO.sub.3 M group or is ##STR2## R.sub.1 is hydrogen, methyl or ethyl, and R.sub.4 is hydrogen, chloro or C.sub.1-2 alkyl, wherein R' is hydrogen, C.sub.1-4 alkyl, C.sub.2-4 hydroxyalkyl, methoxy(C.sub.2-4 alkyl) or ##STR3## R' is hydrogen, C.sub.1-4 alkyl, C.sub.2-4 hydroxyalkyl or methoxy(C.sub.2-4 alkyl), or