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Inventor:
Degen; Helmut
Address:
Frankenthal, DE
No. of patents:
18
Patents:












Patent Number Title Of Patent Date Issued
5547477 Dye mixtures with pyridoneazo dyes August 20, 1996
Dye mixtures useful for dyeing or printing textile fibers or fabrics contain from 40 to 75% by weight, based on the weight of the dyes, of a dye of the formula ##STR1## where R is C.sub.1 -C.sub.4 -alkyl and n is 1 and from 25 to 60% by weight, based on the weight of the dyes, of
5502170 Azo dyes with an acetalized diazo component of the thiophene or thiazole series March 26, 1996
Azo dyes of the formula ##STR1## where L.sup.1, L.sup.2, L.sup.3, L.sup.4, X and K are as defined in the specification, and crystal forms of thienylazobenzene dyes are useful for dyeing or printing textile materials such as polyesters, fibers or fabrics made of cellulose esters o
5466790 Azo dyes with an acetalized diazo component of the thiophene or thiazole series November 14, 1995
Azo dyes of the formula ##STR1## where L.sup.1 is hydrogen, C.sub.1 -C.sub.8 -alkyl or phenyl,L.sup.2 and L.sup.3 are each substituted or unsubstituted C.sub.1 -C.sub.8 -alkyl, or together a radical of the formula ##STR2## where n is 0, 1 or 2, Y.sup.1 and Y.sup.4 are hydrogen,
5466790 Azo dyes with an acetalized diazo component of the thiophene or thiazole series November 14, 1995
Azo dyes of the formula ##STR1## where L.sup.1 is hydrogen, C.sub.1 -C.sub.8 -alkyl or phenyl,L.sup.2 and L.sup.3 are each substituted or unsubstituted C.sub.1 -C.sub.8 -alkyl, or together a radical of the formula ##STR2## where n is 0, 1 or 2, Y.sup.1 and Y.sup.4 are hydrogen,
5382263 Blue dye mixtures of high brilliance January 17, 1995
Blue dye mixtures useful for dyeing or printing polyester fabrics contain from 30 to 95% by weight, based on the total weight of the dyes, of one or more dyes based on 1,4-diaminoanthraquinone-2,3-dicarboximides and also from 5 to 70% by weight based on the total weight of the dyes, of o
5364972 Preparation of nitrobenzophenones, and a color-stable modification of a benzophenone-azopyridone November 15, 1994
A process for preparing nitrobenzophenones by reaction of benzene or its derivatives with nitrobenzoyl chloride in the presence of a Lewis acid, a color-stable modification of 1,4-dimethyl-5-cyano-3-[4-(2,4-dimethylbenzoyl)phenylazo]-2-hydroxy-6-pyri done and its use for dyeing or pri
5330543 Thiopheneazo dyes with a coupling component of the diaminopyridine series July 19, 1994
Azo dyes having the formula ##STR1## wherein the substituents are as defined in the specification and are useful for dyeing or printing textile materials.
5318601 Dye mixtures containing azo and quinophthalone dyes June 7, 1994
Dye mixtures containing from 50 to 95% by weight, of a 4-chloro-2-nitrophenylazohydroxypyridone dye and from 5 to 50% by weight of a chlorinated quinophthalone dye and/or from 5 to 20% by weight of an unsubstituted quinophthalone dye, dye formulations containing the novel dye mixture
5270456 Azo dyes with A2-aminothiophene dye azo component and a coupling component and coupling componen December 14, 1993
Thiopheneazo dye I which are chiefly useful as disperse dyes for dyeing textile material, in particular polyesters, have the formula ##STR1## where the substituents are as defined in the description.
5062861 Novel navy and black disperse dye mixtures including amino-phenyl thiophene azo disperse dye and November 5, 1991
Navy and black dye mixtures contain one or more thiopheneazo dyes whose diazo component comes from the 2-aminothiophene series and whose coupling component comes from the aniline series and one or more dyes F whose absorption maximum is at a wavelength of from 390 to 520 nm, the prop
4925954 Vat dye based on flouranthene May 15, 1990
A vat dye based on monobromofluoranthene is prepared by a process in which monobromofluoranthene which contains no more than 7% of dibromofluoranthene is reacted with 1-amino-4-benzoylaminoanthraquinone, the reaction product is condensed at from 50.degree. to 70.degree. C. in 83-88%
4908041 Navy and black dye mixtures: thiophene azo disperse dye and red, yellow or orange disperse dye March 13, 1990
Navy and black dye mixtures contain one or more thiophene-azo dyes of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, X and Y each have defined meanings, and one or more dyes F whose absorption maximum is at a wavelength of from 390 to 520 nm, the proporti
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.
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
4464181 Mixtures of benzisothiazole mono-azo dyes for cellulose acetate August 7, 1984
Dye mixtures which comprise two or more dyes of the formula ##STR1## ps where X is hydrogen, methyl or chlorine, and R is a radical of the formula OR.sup.1, OCOCH.sub.3, OCOC.sub.2 H.sub.5, R.sup.1 being hydrogen or C.sub.1 -C.sub.4 -alkyl, are very useful for dyeing cellulose ester
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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