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:
Feb. 01, 1977
Filed:
Feb. 20, 1973
Applicant:
Inventor:
Hans Peter Kolliker, Munchenstein, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
2603 / ; 2602 / ; 2603 / ; 8 39 / ; 8 40 ;
Abstract
An anthraquinone dye of sparing aqueous solubility of the formula ##STR1## WHEREIN X represents oxygen or NH, Y represents alkylene having 1 to 4 carbon atoms which is optionally interrupted by oxygen, nitrogen or sulphur, Z represents oxygen or -NR.sub.1, in which R.sub.1 represents an alkyl having 1 to 4 carbon atoms or hydrogen, Ac represents the acyl radical of a carboxylic acid having up to 8 carbon atoms, a sulphuric acid having up to 7 carbon atoms or a carbamic acid having up to 8 carbon atoms, and B represents chlorine, bromine or hydrogen. The new dyestuffs dye polyester fibres in very fast blue shades.