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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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