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Inventor:
Bergmann; Udo
Address:
Darmstadt, DE
No. of patents:
17
Patents:












Patent Number Title Of Patent Date Issued
5003049 Dyes containing fluorotriazine and dichloropyridazone groups March 26, 1991
The compounds of the general formula (I) ##STR1## where A is a dye radical, where relevant the radicals Y independently of one another are each oxygen, sulfur, R.sup.1 --N or a direct bond, n is 1 or 2, the radicals R.sup.1 independently of one another are each hydrogen or unsubs
4960874 Isothiazolylazo dyes having aminophenyl and aminonaphthyl components October 2, 1990
Compounds of the general formula I ##STR1## where R is alkyl or unsubstituted or substituted aryl and K is a radical of the formula ##STR2## B is C.sub.1 -C.sub.4 -alkyl or substituted amino, R.sup.1 is hydrogen, methyl, methoxy or ethoxy, R.sup.2 and R.sup.3 independently of
4820809 Heterocyclic azo dyes April 11, 1989
Novel compounds of the general formula I ##STR1## where X is hydrogen, nitro or unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aryl or hetaryl, Y is cyano, nitro, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, carboxyl, a carboxylic ester group or unsubstituted or substi
4764600 Isothiazolylazo dyes having aminophenyl and aminonaphthyl components August 16, 1988
An isothiazolylazo dye of the formula I ##STR1## wherein R is an alkyl group or unsubstituted aryl or substituted aryl group selected from the group consisting of ##STR2## and K is a radical of the formula ##STR3## where B is C.sub.1 -C.sub.4 alkyl or a substituted amino
4751288 Azo dyes containing 2-amino-3-cyano-5-formylthiophene derivatives as diazo components and substi June 14, 1988
The compounds of the formula I ##STR1## where R is unsubstituted or substituted phenyl or naphthyl, R.sup.1 and R.sup.2 are each unsubstituted or substituted alkyl, alkenyl or cycloalkyl, and one of the radicals may furthermore be hydrogen, R.sup.3 is hydrogen, methyl, methoxy, e
4668775 .alpha.-methine substituted thiophene monoazo dye May 26, 1987
A compound of the formula: ##STR1## wherein K is a radical of a coupling component, R is a radical of a methylene-active compound, X is hydrogen or unsubstituted or substituted alkyl, aryl, or hetaryl and Y is cyano, nitro, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, carboxyl,
4638055 Iron, copper and chromium complexes of disazo dyes January 20, 1987
Compounds which in the form of the free acid are of the general formula I ##STR1## where A is a radical of the formula ##STR2## the radicals Y independently of one another are each hydroxyl or amino, X is hydrogen, hydroxysulfonyl or a radical of the formulaR is a radical of 1-am
4619992 3-(.beta.-aminoethyl)-4-cyano-isothiazolylazo dyes October 28, 1986
A compound of the formula: ##STR1## where R is hydrogen, C.sub.1 -C.sub.4 -alkyl, phenyl, chlorophenyl, methylphenyl, methoxyphenyl or nitrophenyl; R.sup.1 is allyl, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkyl substituted by C.sub.1 -C.sub.8 -alkoxy, phenoxy, phenyl or C.sub
4563520 Metal complexes of dis- or trisazo compounds containing a middle component twice substituted by January 7, 1986
Compounds containing sulfonic acid groups and of the general formula I ##STR1## where D.sup.1 is a radical of a diazo component, X.sup.1 and X.sup.2 independently of one another are each hydroxyl or unsubstituted or substituted amino, Y is hydrogen, chlorine, methyl, hydroxysulfonyl
4547566 Copper, cobalt, nickel and iron complexes of disazo dyes October 15, 1985
Compounds which in the form of the free acid are of the general formula I ##STR1## where A is a radical of the formula ##STR2## the radicals Y independently of one another are each hydroxyl or amino, X is hydrogen, hydroxysulfonyl or a radical of the formulaR is a radical of 1-am
4537597 Navy blue mixtures of disperse mono-azo dyes for cellulose acetate August 27, 1985
Mixtures of dyes of the formula I ##STR1## where X is chlorine or bromine, Z is hydrogen, methyl, ethyl, C.sub.1 -C.sub.4 -alkoxy or acetylamino, R is C.sub.1 -C.sub.4 -alkyl, R.sup.1 and R.sup.2 independently of one another are each allyl or methallyl or are each C.sub.1 -C.sub.
4496480 Isothiazolazo dyes having coupling components which are free from unsaturated aliphatic radicals January 29, 1985
Compounds of the general formula I ##STR1## where R is substituted alkyl and K is the radical of a coupling component free from unsaturated aliphatic radicals, are very useful for dyeing cellulose esters and synthetic polyesters.
4491543 Dis-, tris-, and tetrakisazo compounds containing resorcinol, sulfonylamino, and two or three su January 1, 1985
The present invention discloses substituted phenyl di and trisazo dyes free of reactive groups having two or three sulfonic acid groups, of the general formula: ##STR1## wherein D.sup.1 is ##STR2## Z is hydrogen or D.sup.4 --N.dbd.N--; D.sup.2 is phenyl substituted by hyd
4486198 Navy dye mixtures December 4, 1984
Navy dye mixtures essentially contain dyes of the formula I ##STR1## where X is hydrogen, chlorine or bromine, the radicals R.sup.1 independently of one another are each methyl or ethyl and R is a radical of the formula ##STR2## where A is ##STR3## B is unsubstituted
4405330 Navy disperse dye mixtures September 20, 1983
Navy mixtures which contain dyes of the formula I ##STR1## where X is chlorine or bromine,Y is hydrogen, methoxy or ethoxy andR is N(C.sub.2 H.sub.5).sub.2, N(CH.sub.2 CH.dbd.CH.sub.2).sub.2 or N(C.sub.2 H.sub.4 OCOCH.sub.3).sub.2,the mixtures being composed of 10-70% of dyes with Y.dbd.
4389216 Navy dye mixtures June 21, 1983
Navy dye mixtures which contain, as essential components, compounds of the general formula I ##STR1## in the following amounts, based on the total weight of the mixture:The novel mixtures are very useful for dyeing synthetic polyesters.
4386934 Navy dye mixtures June 7, 1983
Navy dye mixtures which contain, as essential components, compounds of the general formula I ##STR1## where X is chlorine or bromine, Y is methoxy or ethoxy, and R is ##STR2## NHC.sub.2 H.sub.4 CN, NHCH.sub.2 CH.dbd.CH.sub.2 or N(C.sub.2 H.sub.4 OCOCH.sub.3).sub.2, and wherei










 
 
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