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Inventor:
Wiesenfeldt; Matthias
Address:
Mutterstadt, DE
No. of patents:
20
Patents:












Patent Number Title Of Patent Date Issued
RE35407 Azo dye polymers December 17, 1996
Azo dye polymers useful in nonlinear optics contain as characteristic monomer units radicals of the formulae I, II, III and IV ##STR1## where D is the radical of a heterocyclic diazo component,R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl or substituted or unsubstitu
5654122 N-aminopyridone dyes August 5, 1997
Pyridone dyes useful for thermal transfer have the formula ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 - alkyl,R.sup.2 and R.sup.3 are identical or different and each is, independently of the other, hydrogen, substituted or unsubstituted C.sub.1 -C.sub.12 -alkyl, C.sub.5 -
5621107 Sulfopyridones and a process of making therefor April 15, 1997
Azo dyes of the formula ##STR1## where D is the radical of a diazo component, andX is substituted or unsubstituted C.sub.2 -C.sub.8 -alkylene,in the form of the free acid or its salts, the use thereof for dyeing or printing natural or synthetic substrates, sulfopyridones as coupling
5580980 N-aminopyridone dyes December 3, 1996
Pyridone dyes useful for thermal transfer have the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, Y, X and Z are defined in the specification.
5554737 Doubled acid azo dyes with a hydroxypyridone coupling component September 10, 1996
Azo dyes of the formula ##STR1## where D is the radical of a diazo component, andX is substituted or unsubstituted C.sub.2 -C.sub.8 -alkylene, in the form of the free acid or its salts, the use thereof for dyeing or printing natural or synthetic substrates, sulfopyridones as coupling
5461131 Azo dye polymers October 24, 1995
Azo dye polymers useful in nonlinear optics contain as characteristic monomer units radicals of the formulae I, II, III and IV ##STR1## where D is the radical of a heterocyclic diazo component,R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl or substituted or unsubstitu
5449762 Phenylazo- or naphthylazobenzenes having thioether groups September 12, 1995
Reactive dyes of the formula I ##STR1## where n is 0 or 1R.sup.1, R.sup.2 and R.sup.3 are in each case hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,R.sup.4 is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkylsulfonyl, phenylsulfonyl or a radical of the formula ##STR2## L is
5434231 Azo dye polymers July 18, 1995
Azo dye polymers useful in nonlinear optics contain as characteristic monomer units radicals of the formulae I, II, III and IV ##STR1## where D is the radical of a heterocyclic diazo component,R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl or substituted or unsubstitu
5428140 Preparation of phenylazo- or naphthylazobenzenes having thioether groups June 27, 1995
Reactive dyes of the formula ##STR1## where n is 0 or 1R.sup.1, R.sup.2 and R.sup.3 are in each case hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,R.sup.4 is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkylsulfonyl, phenylsulfonyl or a radical of the formula ##STR2## L is a
5391719 Preparation of aminoformazans February 21, 1995
A process for preparing metal aminoformazans by alkaline hydrolysis of the corresponding acylated amino derivates in aqueous medium, is described, the hydrolysis being carried out at from 120.degree. to 170.degree. C. and from 3 to 5 bar in the presence of from 1.5 to 3 mol of an alkali
5298610 Thiazoleazo dyes having a coupling component of the diphenylamine series March 29, 1994
Thiazoleazo dyes useful for dyeing or printing textile fibers have the formula ##STR1## where R.sup.1 is hydrogen, substituted or unsubstituted C.sub.1 -.sub.6 -alkyl, halogen, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, substituted or unsubstituted C.sub.1 -C.sub.6 al
5264507 Azo dye polymers November 23, 1993
Azo dye polymers useful in nonlinear optics contain as characteristic monomer units radicals of the formulae I, II, III and IV ##STR1## where D is the radical of a heterocyclic diazo component,R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl or substituted or unsubstitu
5260446 Aminothiazoles November 9, 1993
Aminothiazoles of the formula ##STR1## or the tautomers thereof, where R.sup.1 and R.sup.2 are each hydrogen or together form a radical of the formula ##STR2## where T.sup.1 is hydrogen, alkyl or phenyl, T.sup.2 and T.sup.3 are each, independently of one another, alkyl or phe
5206376 Preparation of 2-amino-5-formyl-4-halothiazoles April 27, 1993
A process for the preparation of 2-amino-5-formyl-4-halothiazoles by reaction, in a first stage, of thiourea with chloroacetic or bromoacetic acid in the presence of an N,N-disubstituted formamide, followed by treatment of the reaction mixture with a phosphoric trihalide and then wit
5147845 Triazolopyridine dyes and thermal transfer of methine dyes September 15, 1992
Triazolopyridine dyes useful for thermal transfer of methine dyes have the formula ##STR1## where R.sup.1 is C.sub.1 -C.sub.20 -alkyl, which may be substituted and interrupted by one or more oxygen atoms, or is substituted or unsubstituted phenyl or hydroxyl,R.sup.2 is a 5- or 6-
5145828 Transfer of azo dyes September 8, 1992
One or more azo dyes are transferred from a transfer to a sheet of plastic-coated paper by diffusion with the aid of an energy source, said azo dyes having the formula ##STR1## where X is nitrogen or the radical C--CN,Z is oxygen or the radical --CH(R.sup.7)--, where R.sup.7 is hydro
5079365 Triazolopyridine dyes and thermal transfer of methine dyes January 7, 1992
Triazolopyridine dyes useful for thermal transfer of methine dyes have the formula ##STR1## where R.sup.1 is C.sub.1 -C.sub.20 -alkyl, which may be substituted and interrupted by one or more oxygen atoms, or is substituted or unsubstituted phenyl or hydroxyl,R.sup.2 is a 5- or 6-
5064962 Diaminothiophenes November 12, 1991
Diaminothiophenes of the formula ##STR1## or tautomers thereof, where R.sup.1 and R.sup.2 are each hydrogen or together are ##STR2## where T.sup.1 is hydrogen, alkyl or phenyl, T.sup.2 and T.sup.3 are, independently of one another, alkyl or phenyl, or T.sup.2 and T.sup.3
5059684 Azo dyes whose diazo and coupling components stem from the thiazole series October 22, 1991
Thiazole-azo dyes of the formula ##STR1## where R.sup.1 is C.sub.1 -C.sub.12 -alkyl, which may be interrupted by oxygen atoms, phenyl, halogen, cyano or C.sub.1 -C.sub.4 -alkoxycarbonyl,R.sup.2 is formyl, cyano, C.sub.1 -C.sub.4 -alkoxycarbonyl or a radical of the formula --CH.dbd.CX
5003081 Pyrrole derivatives useful as diazo and coupling components March 26, 1991
Pyrrole derivatives of the formula ##STR1## or the tautomers thereof, where R.sup.1 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl, hetaryl or amino, it being possible for these radicals to be substituted,R.sup.2 is hydrogen, alkyl, benzyl, alkenyl, cycloalkyl or phenylR.su










 
 
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