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. 15, 1981
Filed:
Jul. 11, 1979
Applicant:
Inventor:
Peter Moser, Binningen, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544103 ; 8655 ; 8657 ;
Abstract
There are described new blue cationic oxazine dyes of the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are each C.sub.1-4 -alkyl, with R.sub.1 and R.sub.2 together with the nitrogen atom also being able to form a heterocyclic ring, and X.sup..crclbar. is an anion; these dyes are distinguished in particular by an excellent migration capacity on polyacrylonitrile fibres.