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:
Jun. 04, 1991
Filed:
Mar. 08, 1989
Rainer Begrich, Rheinfelden, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Reactive dyes of formula ##STR1## wherein Y is a radical of formula ##STR2## Z is --NH.sub.2, an unsubstituted or a substituted aliphatic or aromatic amino group; A is an unsubstituted or a substituted aliphatic or aromatic bridging group, and X is .beta.-sulfatoethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl, .beta.-acyloxyethyl, .beta.-haloethyl or vinyl; the benzene rings I, II and III may contain further substituents in addition to 2 to 4 sulfo groups and, in the benzene ring II, to the radical --NH--Y; and the reactive dyes of formula (1) contain only a single fibre-reactive radical, are especially suitable for dyeing or printing cellulosic fibre materials by the methods customarily employed for reactive dyes, and give dyeings and prints of good fastness properties in high color yield.