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. 25, 1977
Filed:
Jan. 02, 1975
Applicant:
Inventors:
Wolfgang Mach, Hockenheim, DT;
Horst Scheuermann, Ludwigshafen, DT;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen (Rhine), DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603452 ; 2602 / ; 2602 / ; 2602 / ; 2602 / ; 2602 / ; 2602 / ; 2602 / ; 2602949 ; 26029358 ; 2603 / ; 2603092 ; 26032634 ; 2603 / ; 2603 / ;
Abstract
Dyes of the formula ##STR1## wherein A is --O--, --S-- or --CH=CH-- and X and Z are substituents, obtained from the corresponding 2-iminocoumarines by reaction with a compound of the formula ##STR2## The dyes give brilliant yellow to red shades on textile material, particularly polyesters and acrylonitrile polymers.