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:
May. 11, 1976
Filed:
Jan. 02, 1974
Applicant:
Inventors:
Hans Bosshard, Basel, CH;
Michael Diamantoglou, Erlenbach, DT;
Hans Peter Koelliker, Muenchenstein, CH;
Urs Karlen, Magden, CH;
Assignee:
Ciba-Geigy AG, Basel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
260380 ; 8 39 / ; 8 40 ; 260249 ; 2602 / ; 260272 ; 260303 ; 2603075 ; 2603 / ; 2603 / ; 2603096 ; 2603 / ; 2603 / ; 2603292 ; 260376 ; 2603 / ;
Abstract
Anthraquinone dyestuffs of the formula ##SPC1## In which R.sub.1 and R.sub.2 independently of one another each denote hydrogen or a lower alkyl group, X denotes a direct bond, --CH.sub.2 --, --O-- or --S--, and Y denotes the nitrile group, a thiocarboxylic acid ester group, a carbacyl group, or an optionally substituted aliphatic, cycloaliphatic, carbocyclic-aromatic or heterocyclic radical. The dyestuffs yield fast blue shades on polyesterfibers.