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:
Mar. 31, 1992
Filed:
Aug. 24, 1990
Applicant:
Inventors:
Volker Bach, Neustadt, DE;
Karl-Heinz Etzbach, Frankenthal, DE;
Gunther Lamm, Hassloch, DE;
Ruediger Sens, Mannheim, DE;
Klaus Unterforsthuber, Dannstadt-Schauernheim, DE;
Rosemarie Rausch-Krebs, Frankfurt, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; B91M / ; B41M / ;
U.S. Cl.
CPC ...
548191 ; 548192 ; 503227 ;
Abstract
Useful thermal transfer dyes are thiazole dyes having the formula ##STR1## where R.sup.1 and R.sup.2 are each, independently of the other, hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted phenyl or cyclohexyl or together with the linking nitrogen atom a heterocyclic radical,