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. 05, 1991
Filed:
Jun. 19, 1989
Rudolf Schaulin, Riehen, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
This invention relates to direct dyes for various substrates, in particular cellulosic fiber materials. The inventive dyes are high-temperature-resistant and highly suitable for the single bath, one step dyeing of polyester/cotton mixed fabrics with a disperse dye for the polyester fibers under the dyeing conditions for polyester fibers. The inventive dyes are of the formula ##STR1## in which A is a radical of the formula ##STR2## A' has the meaning of A or is a mono- or polyazo dye radical which is different from A, R and R', independently of one another, are hydrogen or C.sub.1 -C.sub.4 alkyl which is unsubstituted or substituted by chlorine, hydroxyl, cyano, carboxyl, sulfo, sulfato, methoxy, ethoxy, methoxycarbonyl or ethoxycarbonyl, R.sub.1 is hydroxyl, C.sub.1 -C.sub.4 alkoxy, halogen, C.sub.1 -C.sub.4 alkylthio, amino, N-mono- or N,N-di-C.sub.1 -C.sub.4 alkylamino which is unsubstituted or substituted in the alkyl moiety by hydroxyl, carboxyl or C.sub.1 -C.sub.4 alkoxy, cyclohexylamino, phenylamino or N-C.sub.1 -C.sub.4 alkyl-N-phenylamino which are unsubstituted or substituted in the phenyl moiety by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, carboxyl, sulfo or halogen, morpholino, piperidino or 3-carboxy- or 3-carboxamidopyridin-1-yl, R.sub.2 is unsubstituted or hydroxy-substituted C.sub.1 -C.sub.4 alkyl, and the phenyl radical (a) is unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, hydroxyl, carboxyl, sulfo, --NHCOR.sub.2 or unsubstituted or sulfo-, C.sub.1 -C.sub.4 alkoxy-, hydroxyl- or halogen-substituted phenylazo or 1-2-naphthylazo.