Patents by Inventor Heinz Eilingsfeld
Heinz Eilingsfeld has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5206375Abstract: The novel compound of the general formula I ##STR1## where X is fluorine, chlorine, bromine, SO.sub.2 Y or unsubstituted or substituted hydroxyl or mercapto, Y is alkyl, alkenyl, cycloalkyl, aralkyl, aryl, chlorine or unsubstituted or substituted hydroxyl or amino, R is hydrogen, C.sub.1 -C.sub.4 -alkyl or a radical which can be introduced by electrophilic substitution or a radial of the formula --CH.dbd.T, in which T is a radical of a methyleneactive compound or of an amine, and R.sup.1 is hydrogen, acyl or unsubstituted or substituted alkyl, cycloalkyl or alkenyl, and R.sup.2 is hydrogen or unsubstituted or substituted alkyl or alkenyl, or R.sup.1 and R.sup.2 together with the nitrogen form a saturated heterocyclic structure and R.sup.1 and R.sup.2 together form a radical of the formula ##STR2## are useful as diazo and/or coupling components or generally as dye intermediates, depending on their constitution.Type: GrantFiled: April 8, 1992Date of Patent: April 27, 1993Assignee: BASF AktiengesellschaftInventors: Ernst Schefczik, Karl-Heinz Etzbach, Heinz Eilingsfeld
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Patent number: 5145952Abstract: Thiopheneazo dyes of the formula ##STR1## where X is cyano or C.sub.1 -C.sub.4 -alkoxycarbonyl,Y is halogen, hydroxyl, mercapto, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, C.sub.5 -C.sub.7 -cycloalkoxy, substituted or unsubstituted phenoxy, substituted or unsubstituted C.sub.1 -C.sub.6 -alkylthio, C.sub.5 -C.sub.7 -cycloalkylthio, substituted or unsubstituted phenylthio, C.sub.1 -C.sub.6 -alkylsulfonyl or substituted or unsubstituted phenylsulfonyl,Z is nitro, cyano, C.sub.1 -C.sub.4 -alkanoyl, benzoyl, C.sub.1 -C.sub.4 -alkylsulfonyl, phenylsulfonyl or a radical of the formula --CH.dbd.CB.sup.1 B.sup.2 or --CH.dbd.N--B.sup.3, in which B.sup.1 and B.sup.2 independently of the other are cyano, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxycarbonyl or C.sub.3 -C.sub.6 -alkenyloxycarbonyl or one of B.sup.1 and B.sup.2 is cyano and the other is C.sub.1 -C.sub.4 -alkylsulfonyl, substituted or unsubstituted phenyl, benzoyl, phenylsulfonyl or carbamoyl and B.sup.3 is hydroxyl, C.sub.1 -C.sub.Type: GrantFiled: December 29, 1989Date of Patent: September 8, 1992Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Karl-Heinz Etzbach, Guenter Hansen, Helmut Reichelt, Ernst Schefczik
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Patent number: 5082973Abstract: A process for the preparation of bis(4-chlorophenyl) sulfone, wherein sulfur trioxide, dimethyl sulfate and chlorobenzene are reacted with each in a single reaction at a temperature of from 50.degree. to 100.degree. C.Type: GrantFiled: January 12, 1990Date of Patent: January 21, 1992Assignee: BASF AktiengesellschaftInventors: Michael Stumpp, Peter Neumann, Heinz Eilingsfeld
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Patent number: 5072034Abstract: 4-alkoxy-2-hydroxybenzophenone-5-sulfonic acids of the general formula I ##STR1## where R.sup.1 is C.sub.1 -C.sub.20 -alkyl which is unsubstituted or substituted by halogen, cyanao, hydroxyl, C.sub.1 -C.sub.20 -alkoxy, C.sub.2 -C.sub.20 -alkoxycarbonyl, acyloxy and/or phenyl which is unsubstituted or substituted by C.sub.1 -c.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy and/or halogen, R.sup.2 and R.sup.3 independently of one another are each hydrogen, halogen, C.sub.1 -C.sub.12 -alkyl, C.sub.1 -C.sub.12 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.4 -C.sub.12 -cycloalkylalkyl, cyano, hydroxyl or hydroxyethyl or are each phenoxy, C.sub.7 -C.sub.10 -phenalkyl or phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy and/or halogen, and R.sup.4 is hydrogen or sulfo, are prepared by reacting a 4-alkoxy-2-hydroxybenzophenone of the general formula II ##STR2## with chlorosulfonic acid at from -20.degree. to +100.degree. C.Type: GrantFiled: December 13, 1990Date of Patent: December 10, 1991Assignee: BASF AktiengesellschaftInventors: Peter Neumann, Heinz Eilingsfeld, Alexander Aumueller
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Patent number: 5006659Abstract: 7-Chloroquinoline-8-carboxylic acids of the formula (I) ##STR1## where R is hydrogen, chlorine or methyl, are prepared by direct oxidation of the corresponding 8-methylqunoline compound with nitric acid or nitrogen oxide in the presence of sulfuric acid and a heavy metal catalyst.Type: GrantFiled: January 16, 1990Date of Patent: April 9, 1991Assignee: BASF AktiengesellschaftInventors: Helmut Hagen, Jacques Dupuis, Heinz Eilingsfeld
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Patent number: 4983773Abstract: Bis-(4-chlorophenyl) sulfone is prepared by reacting chlorobenzene with sulfuric acid at from 200.degree. to 250.degree. C. by a process in which a condensing agent is added.Type: GrantFiled: October 5, 1989Date of Patent: January 8, 1991Assignee: BASF AktiengesellschaftInventors: Michael Stumpp, Peter Neumann, Heinz Eilingsfeld
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Patent number: 4897469Abstract: Azo reactive dyes of the aniline series for dye or printing fiber materials of the formula ##STR1## wherein K is the radical of a coupling component, and Z is a vinyl sulfonyl reactive group ortho- or para- to the azo bridge.Type: GrantFiled: April 1, 1988Date of Patent: January 30, 1990Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Ruediger Iden
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Patent number: 4873372Abstract: A process for the isolation of 4,4'-dichlorodiphenyl sulfone from a mixture of dichlorodiphenyl sulfones in which the ratios of the masses of 2,4'-dichlorodiphenyl sulfone and 3,4'-dichlorodiphenyl sulfone to the mass of 4,4'-dichlorodiphenyl sulfone are respectively from 0.5% to 20% and from 0.5% to 30% by treating the mixture with an alkanol at temperatures of from 20.degree. C. to 250.degree. C., cooling, and separating the pure 4,4'-dichlorodiphenyl sulfone that precipitates.Type: GrantFiled: January 25, 1988Date of Patent: October 10, 1989Assignee: BASF AktiengesellschaftInventors: Gerhard Schaefer, Heinz Eilingsfeld, Peter Neumann, Michael Stumpp
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Patent number: 4843153Abstract: Thienothiophene dyes of the formula ##STR1## wherein Z is carboxylate, acyl, carboxyl, substituted or unsubstituted carbamoyl, cyano or nitro, X is hydrogen, fluorine, chlorine, bromine, Z or a group of the formula ##STR2## T.sup.1 and T.sup.2 are identical or different and each is independently of the other cyano, substituted or unsubstituted alkoxycarbonyl, alkenyloxycarbonyl, carbamoyl or alkylcarbamoyl and W is hydrogen, methyl or ethyl, Y is hydrogen, chlorine or bromine and K is the radical of a coupling component, are highly suitable for dyeing synthetic fibers, in particular polyesters wherein the dyeing obtained have good fastness properties.Type: GrantFiled: July 1, 1987Date of Patent: June 27, 1989Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Karl-Heinz Etzbach, Guenter Hansen, Helmut Reichelt
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Patent number: 4785116Abstract: Novel compounds of the general formula I ##STR1## where X and Y independently of one another are each carboxyl, a carboxylic ester group, cyano or an unsubstituted or substituted carbamyl or carboxylic hydrazide group and X and Y together form a radical of the formula ##STR2## where R.sup.1 is hydrogen or a radical of a primary amine and R.sup.2 and R.sup.3 are each hydrogen or unsubstituted or substituted alkyl, cycloalkyl or aryl, are very useful as diazo components.Type: GrantFiled: January 18, 1985Date of Patent: November 15, 1988Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Karl-Heinz Etzbach
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Patent number: 4677199Abstract: Compounds of the general formula I ##STR1## wherein R.sup.1 is hydrogen, fluorine, chlorine or bromine, R.sup.2 is hydrogen, fluorine, chlorine, bromine, or nitro, B is aliphatic or a sulfo-substituted phenylene radical, and X is a dye radical, are useful for dyeing hydroxyl-containing textile material, in particular cotton.Type: GrantFiled: September 19, 1985Date of Patent: June 30, 1987Assignee: BASF AktiengesellschaftInventors: Dietmar Augart, Heinz Eilingsfeld, Heinz Krueger, Hartmut Lardon, Ortwin Schaffer, Guenther Seybold
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Patent number: 4533612Abstract: Electrophotographic recording materials which comprise an electrically conductive base, charge carrier-producing compounds (sensitizers), and charge carrier-transporting compounds, possess high photoconductivity and low conductivity in the dark, and contain, as charge carrier-transporting compounds, 2-substituted benzotriazoles of the formula ##STR1## are used for reprographic purposes and for the production of electrophotographic printing plates, in particular offset printing plates.Type: GrantFiled: November 27, 1984Date of Patent: August 6, 1985Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Karl-Heinz Etzbach, Gerhard Hoffmann, Peter Neumann
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Patent number: 4490541Abstract: Compounds of the general formula I ##STR1## where R.sup.1 is hydrogen, unsubstituted or substituted alkyl, cycloalkyl or aryl, acyl, alkoxycarbonyl, phenoxycarbonyl, unsubstituted or substituted carbamyl, thiocarbamyl or sulfamyl, or alkylsulfonyl or arylsulfonyl, and R.sup.2 is hydrogen or a radical of a primary amine, are very useful as diazo components for the preparation of azo dyes.Type: GrantFiled: January 6, 1983Date of Patent: December 25, 1984Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Karl-Heinz Etzbach
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Patent number: 4483795Abstract: Compounds of the general formula I ##STR1## where D is the radical of a diazo component,R is hydrogen, hydroxy or unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl, phenyl or heterocyclic ring,R.sup.1 and R.sup.2 independently of one another are hydrogen or unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl or aryl, orR.sup.1 and R.sup.2 together with the nitrogen are a saturated heterocyclic 5-membered to 7-membered ring,X is hydrogen, chlorine, bromine, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, allyloxy, .beta.-cyanoethoxy, benzyloxy, phenoxy, .beta.-alkoxycarbonylethoxy, where alkoxy is of 1 to 4 carbon atoms, alkylmercapto of 1 to 4 carbon atoms, phenylmercapto or alkanoylamino of 1 to 4 carbon atoms, andY is chlorine, alkyl of 1 to 4 carbon atoms, allyloxy, alkoxy of 1 to 4 carbon atoms or .beta.-cyanoethoxy, orX and Y together are a fused benzene ring which is unsubstituted or substituted by alkyl alkoxy chlorine or bromine.Type: GrantFiled: October 13, 1982Date of Patent: November 20, 1984Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Guenter Hansen, Guenther Seybold, Georg Zeidler
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Patent number: 4481272Abstract: An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer containing one or more compounds which are charge carrier-transporting when exposed to light, wherein the charge carrier-producing dyes are those of the general formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each hydrogen or a non-ionic substituent, X and Y are each the radical of a methylene-active compound, or of an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic amine or hydrazine, and Z is hydrogen, methyl or phenyl, and the production of this recording medium.Type: GrantFiled: November 22, 1983Date of Patent: November 6, 1984Assignee: BASF AktiengesellschaftInventors: Albrecht Eckell, Heinz Eilingsfeld, Albert Elzer, Franz Feichtmayr, Gerhard Hoffmann, Reinhold J. Leyrer, Peter Neumann
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Patent number: 4466899Abstract: The use of a dye of the general formula I ##STR1## where R is a heterocyclic radical, X is hydrogen, nitro, or unsubstituted or substituted amino, hydroxyl or mercapto and Y is hydrogen, nitro, or unsubstituted or substituted amino, hydroxyl or mercapto, and the ring A can be additionally substituted, in an electro-optical display containing liquid crystals, and a liquid-crystal mixture containing a dye of the general formula in claim 1.Type: GrantFiled: January 4, 1982Date of Patent: August 21, 1984Assignee: BASF AktiengesellschaftInventors: Walter Ditter, Karl-Heinz Etzbach, Dieter Horn, Manfred Patsch, Heinz Eilingsfeld
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Patent number: 4465857Abstract: Phenylhydrazones of the formula ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl or phenyl-C.sub.1 -C.sub.4 -alkyl, or is phenyl which is unsubstituted or substituted by alkyl, alkoxy or halogen, or is a radical ##STR2## R.sup.2 is alkyl or is phenyl which is unsubstituted or substituted by alkyl, alkoxy or halogen, and R.sup.4 and R.sup.5 independently of one another are each H, alkyl, alkoxy or halogen, are very useful as charge carrier-transporting compounds for electrophotographic recording materials.Type: GrantFiled: December 29, 1982Date of Patent: August 14, 1984Assignee: BASF AktiengesellschaftInventors: Peter Neumann, Karl-Heinz Etzbach, Heinz Eilingsfeld, Gerhard Hoffmann
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Patent number: 4456672Abstract: Electrophotographic recording materials which comprise an electrically conductive base, charge carrier-producing compounds (sensitizers), and compounds which are charge carrier-transporting when exposed to light, possess high photoconductivity and low conductivity in the dark, and contain, as charge carrier-transporting compounds, 1,2,3-triazoles of the fomula ##STR1## are used for reprographic purposes and for the production of electrophotographic printing plates, in particular offset printing plates.Type: GrantFiled: April 27, 1983Date of Patent: June 26, 1984Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Karl-Heinz Etzbach, Gerhard Hoffmann, Peter Neumann
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Patent number: 4407810Abstract: Novel 2-substituted thiazol-2-yl-oxamic acid esters, processes for their preparation, and therapeutic agents which contain these compounds and are useful in the treatment of allergic disorders.Type: GrantFiled: July 13, 1981Date of Patent: October 4, 1983Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Peter Neumann, Guenther Seybold, Dieter Lenke, Ludwig Friedrich
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Patent number: 4372885Abstract: Compounds of the general formula I ##STR1## where D is the radical of a diazo component,R is hydrogen, hydroxy or unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl, phenyl or heterocyclic ring,R.sup.1 and R.sup.2 independently of one another are hydrogen or unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl or aryl, orR.sup.1 and R.sup.2 together with the nitrogen are a saturated heterocyclic 5-membered to 7-membered ring,X is hydrogen, chlorine, bromine, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, allyloxy, .beta.-cyanoethoxy, benzyloxy, phenoxy, .beta.-alkoxycarbonylethoxy, where alkoxy is of 1 to 4 carbon atoms, alkylmercapto of 1 to 4 carbon atoms, phenylmercapto or alkanoylamino of 1 to 4 carbon atoms, andY is chlorine, alkyl of 1 to 4 carbon atoms, allyloxy, alkoxy of 1 to 4 carbon atoms or .beta.-cyanoethoxy, orX and Y together are a fused benzene ring which is unsubstituted or substituted by alkyl, alkoxy, chlorine or bromine.Type: GrantFiled: August 4, 1978Date of Patent: February 8, 1983Assignee: BASF AktiengesellschaftInventors: Heinz Eilingsfeld, Guenter Hansen, Guenther Seybold, Georg Zeidler