Basf Aktiengesellschaft

Werner Juenemann

Gunther Lamm

Johannes Dehnert

Hermann Loeffler

Walter Kurtz

Peter Dimroth

Volker Radtke

Guenter Meyer

Karl-Heinz Etzbach

Hermann Loffler

Compounds of the general formula I ##STR1## where R.sup.1 and R.sup.2 independently of one another are each C.sub.6 -C.sub.24 -alkyl or are each benzyl which is unsubstituted or substituted by alkyl or by cycloalkyl, and one of the radicals may furthermore be hydrogen, and the rings A, B, C and D can be further substituted by chlorine, methyl or methoxy, with the exception of the compound of the formula ##STR2## are useful as dyes in electrooptical liquid crystal displays or for the production of polarization films.

Azo dyes and liquid-crystalline materials containing these dyes

A process for dyeing and printing cellulose-containing textile material, wherein the dye used is a compound of the general formula I ##STR1## where K is the radical of a coupling component of the pyridone, pyrazole or indole series,

Dyeing and printing of cellulose-containing textile material

Disazo dyes of the general formula I ##STR1## where R is an araliphatic or aromatic radical, X.sup.1 is ##STR2## X.sup.2 is hydrogen, phenyl or an aliphatic or araliphatic radical, R.sup.1 is hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, the rings A, B and C may be substituted and the rings B and C may carry a fused benzo ring, and the group ##STR3## may also be a heterocyclic radical of the formula ##STR4## The novel dyes are very suitable for dyeing polyesters and cellulose.

Disazo dyestuffs having an acylamino group and an aromatic-oxy group on

A process for dyeing and printing cellulosic textile material, wherein the dye used is a compound of the general formula I ##STR1## where K is a radical of the formula ##STR2## one of the radicals X and Y is a C.sub.2 -C.sub.19 -carboxylic acid ester group, a C.sub.3 -C.sub.19 -carboxamide group, a C.sub.4 -C.sub.18 -sulfonamide group, a C.sub.4 -C.sub.8 -alkylsulfone group, a C.sub.6 -C.sub.8 -arylsulfone group or a sulfonic acid aryl ester group and

Dyeing and printing of cellulosic textile material

A process for dyeing cellulose-containing textile material, wherein a dye of the general formula I ##STR1## where R is an aliphatic, cycloaliphatic, araliphatic or aromatic radical and n is 0 or 1, and where the rings A, B and C may be substituted and may carry a fused ring, is used. On cotton and especially on cotton/polyester union fabrics, the process according to the invention gives very fast, especially very lightfast, dyeings.

Dyeing of cellulose-containing textile material and novel dyes for use

Dyes of the formula I ##STR1## in which A is phenyl or phenyl substituted by chloro, bromo, nitro, methyl, ethyl, methoxy or ethoxy; B.sup.1 is hydrogen, chloro, bromo, nitro, methyl or trifluoromethyl; B.sup.2 is hydrogen, chloro, bromo or nitro; R is C.sub.1 to C.sub.4 alkyl; and X is hydrogen, chloro or bromo. The compounds are distinguished by high color strength, brilliance and good fastness properties such as light-fastness, fastness to overspraying, plasticizers fastness and insolubility in most solvents used in connection with pigments. They are particularly suitable for the coloring of air-drying surface coatings, rigid polyvinyl chloride and emulsion paints.

Azo dyes having an oxdiazolyl-1,2,4 group

Uniformly dyed water-swellable cellulosic fibers which are fast to washing, dry-cleaning, sublimation and light and have been produced by contacting water-swellable cellulose fibers sequentially or concomitantly with water, ethylene glycol or a derivative thereof and, while the fibers are still swollen, an essentially water-insoluble dye of the formula ##STR1## in which D is the radical of a diazo component;

Uniformly dyed water-swellable cellulosic fibers

Dye formulations for dyeing and printing cellulose and cellulosic textile material which in addition to conventional components contain a dye of the general formula (I): ##STR1## in which D is the radical of a diazo component; R is hydrogen, C.sub.1 to C.sub.7 alkyl, phenyl or phenyl bearing methyl as a substituent; X is cyano, carbamoyl or substituted carbamoyl; R.sup.1 is hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical; R.sup.2 is hydrogen or an aliphatic, cycloaliphatic or araliphatic radical; R.sup.3 and R.sup.4 independently of one another have the same meanings as R.sup.1 and R.sup.2 ; and R.sup.1 --n--r.sup.2 and R.sup.3 --N--R.sup.4 independently of one another are saturated heterocyclic radicals.

Azo dyes having a 3-cyano- or 3-carbamoyl-2,6-diamino-pyridine coupling

Uniformly dyed water-swellable cellulosic fibers obtained by dyeing cellulosic fibers, in the swollen state, with a dye of the formula ##STR1## where D is a radical of a diazo component of the aniline, aminoazobenzene, aminophthalimide, aminonaphthalimide, anthraquinone or benzanthrone series, R is alkyl of 1 to 4 carbon atoms or phenyl which is unsubstituted or substituted by chlorine, bromine, methyl, methoxy or ethoxy and R.sup.1 is phenyl which is unsubstituted or substituted by chlorine, bromine, methyl, ethyl, methoxy, ethoxy, benzyloxy, phenoxy, chlorophenoxy, unsubstituted or N-substituted carbamoyl or sulfamoyl, unsubstituted or N-substituted phthalimidyl, alkoxycarbonyl of 1 to 8 carbon atoms, cyano or phenylsulfonyl.

Growing community of inventors

Ludwigshafen, Germany

Werner Juenemann