Patents by Inventor Thomas Eichenberger
Thomas Eichenberger 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: 8697792Abstract: The invention relates to colored and/or fluorescent copolycondensates which are obtained by reaction of colorants substituted by at least two reactive groups which do not interfere with one another, with selected cyclic dicarboxylic acids (especially 1,4-cyclohexanedicarboxylic acid), aliphatic diols (especially ethylene glycol), cyclic diamines (especially isophoronediamine) and/or amino acids in particular amounts.Type: GrantFiled: September 15, 2010Date of Patent: April 15, 2014Assignee: BASF SEInventors: Thomas Ruch, Thomas Eichenberger, Peter Sutter, Christoph Krebs, Ursula Luterbacher
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Patent number: 8691002Abstract: A process for preparing a black colorant, preferably a black pigment, characterized in that a compound of the Formula (I) is reacted with a compound of the Formula (II) in a molar ratio of 1:2, in the presence of a catalyst which in water at 25° C. has a pK?4.5. For the definition of R1 to R7, refer to the description; preferably all are H. Likewise claimed are new crystal polymorphs obtainable by this process, and preferably single-phase mixed crystals. Also claimed are synergistic compositions. These compositions exhibit increased light stability in plastics stabilized with basic light stabilizers when they are pigmented with colorants of the invention rather than with known black pigments such as carbon black.Type: GrantFiled: December 28, 2009Date of Patent: April 8, 2014Assignee: BASF SEInventors: Thomas Eichenberger, Thomas Ruch, Ralf Bauer, Christoph Krebs, Ursula Luterbacher, Marc Maurer
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Patent number: 8674006Abstract: Described is a pigment dispersion which is useful for electrophoretic displays comprising ?) a bis-oxodihydro-indolylene-benzodifuranone colorant of the Formula (I) wherein the substituents are defined as in claim 1, ?) a specific polymeric dispersant, and ?) a solvent which is suitable for dispersions used in electrophoretic displays. Also described are novel colourants and dispersants.Type: GrantFiled: January 7, 2010Date of Patent: March 18, 2014Assignee: BASF SE LudwigshafenInventors: Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas Gernandt, Dario Perera, Thomas Ruch, Christoph Krebs, Thomas Eichenberger, Achim Lamatsch
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Publication number: 20120172529Abstract: The invention relates to coloured and/or fluorescent copolycondensates which are obtained by reaction of colourants substituted by at least two reactive groups which do not interfere with one another, with selected cyclic dicarboxylic acids (especially 1,4-cyclohexanedicarboxylic acid), aliphatic diols (especially ethylene glycol), cyclic diamines (especially isophoronediamine) and/or amino acids in particular amounts.Type: ApplicationFiled: September 15, 2010Publication date: July 5, 2012Applicant: BASF SEInventors: Thomas Ruch, Thomas Eichenberger, Peter Sutter, Christoph Krebs, Ursula Luterbacher
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Publication number: 20120172498Abstract: Described is a pigment dispersion which is useful for electrophoretic displays comprising ?) a bis-oxodihydro-indolylene-benzodifuranone colorant of the Formula (I) wherein the substituents are defined as in claim 1, ? a specific polymeric dispersant, and ?) a solvent which is suitable for dispersions used in electrophoretic displays. Also described are novel colourants and dispersants.Type: ApplicationFiled: January 7, 2010Publication date: July 5, 2012Applicant: BASF SEInventors: Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas Gernandt, Dario Perera, Thomas Ruch, Christoph Krebs, Thomas Eichenberger, Bernd Lamatsch, Achim Lamatsch (Heir)
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Patent number: 8193528Abstract: The present invention relates to electronic devices, especially electroluminescent devices, comprising azapyrenes of formula (I), or formula (III), wherein Y1, Y2, Y3, Y4, X1, X2 and X3 are independently each other N, or CR4, with the proviso that at least one of the groups X1, X2 and X3 is a group CR4, R1 is hydrogen, F, —SiR100R101R102, or an organic substituent, R4 is hydrogen, F, —SiR100R101R102, or an organic substituent, or any of the substituents R1, R1? and R4, which are adjacent to each other, together form an aromatic, or heteroaromatic ring, or ring system, which can optionally be substituted, m is an integer of 1 to 6, and R100, R101 and R102 are independently of each other a C1-C8alkyl group, a C6-C24aryl group, or a C7-C12aralkyl group, which may optionally be substituted, and Q is a linking group; with the proviso that in the compound of formula (III) at least one of the substituents R1, or R4 is a group Q; especially as host for phosphorescent emitters, electron transporting materials, or emitType: GrantFiled: June 23, 2009Date of Patent: June 5, 2012Assignee: BASF SEInventors: Thomas Schäfer, Thomas Eichenberger, Kristina Bardon, Andrea Ricci, Natalia Chebotareva
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Publication number: 20110294385Abstract: A process for preparing a black colorant, preferably a black pigment, characterized in that a compound of the Formula (I) is reacted with a compound of the Formula (II) in a molar ratio of 1:2, in the presence of a catalyst which in water at 25° C. has a pK?4.5. For the definition of R1 to R7, refer to the description; preferably all are H. Likewise claimed are new crystal polymorphs obtainable by this process, and preferably single-phase mixed crystals. Also claimed are synergistic compositions. These compositions exhibit increased light stability in plastics stabilized with basic light stabilizers when they are pigmented with colorants of the invention rather than with known black pigments such as carbon black.Type: ApplicationFiled: December 28, 2009Publication date: December 1, 2011Applicant: BASF SEInventors: Thomas Eichenberger, Thomas Ruch, Ralf Bauer, Christoph Krebs, Ursula Luterbacher, Marc Maurer
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Publication number: 20110186821Abstract: The present invention relates to electronic devices, especially electroluminescent devices, comprising azapyrenes of formula (I), or formula (III), wherein Y1, Y2, Y3, Y4, X1, X2 and X3 are independently each other N, or CR4, with the proviso that at least one of the groups X1, X2 and X3 is a group CR4, R1 is hydrogen, F, —SiR100R101R102, or an organic substituent, R4 is hydrogen, F, —SiR100R101R102, or an organic substituent, or any of the substituents R1, R1? and R4, which are adjacent to each other, together form an aromatic, or heteroaromatic ring, or ring system, which can optionally be substituted, m is an integer of 1 to 6, and R100, R101 and R102 are independently of each other a C1-C8alkyl group, a C6-C24aryl group, or a C7-C12aralkyl group, which may optionally be substituted, and Q is a linking group; with the proviso that in the compound of formula (III) at least one of the substituents R1, or R4 is a group Q; especially as host for phosphorescent emitters, electron transporting materials, or emitType: ApplicationFiled: June 23, 2009Publication date: August 4, 2011Applicant: BASF SEInventors: Thomas Schäfer, Thomas Eichenberger, Kristina Bardon, Andrea Ricci, Natalia Chebotareva
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Patent number: 7923540Abstract: The present invention is directed to 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxo-propyl]azo]-benzoic acid (C.I. Pigment Yellow 151): (I), characterized by a ?E* (black/white) in masstone below 22.0±0.7, a process for its preparation and its use for pigmenting macromolecular organic materials of natural or synthetic origin. The pigment has high opacity and high color strength.Type: GrantFiled: January 8, 2007Date of Patent: April 12, 2011Assignee: BASF SEInventors: Hans Reichert, Max Hügin, Ulrich Veith, Sibylle Soder, Thomas Eichenberger
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Patent number: 7731791Abstract: The present invention relates to the field of color filters and LCDs.Type: GrantFiled: September 21, 2005Date of Patent: June 8, 2010Assignee: Ciba Specialty Chemicals CorporationInventors: Takashi Deno, Thomas Eichenberger, Joachim Voigt
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Publication number: 20090012305Abstract: The present invention is directed to 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxo-propyl]azo]-benzoic acid (C.I. Pigment Yellow 151): (I), characterized by a ?E* (black/white) in masstone below 22.0±0.7, a process for its preparation and its use for pigmenting macromolecular organic materials of natural or synthetic origin. The pigment has high opacity and high color strength.Type: ApplicationFiled: January 8, 2007Publication date: January 8, 2009Inventors: Hans Reichert, Max Hugin, Ulrich Veith, Sibylle Soder, Thomas Eichenberger
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Publication number: 20080081280Abstract: The present invention relates to the field of color filters and LCDs.Type: ApplicationFiled: September 21, 2005Publication date: April 3, 2008Inventors: Takashi Deno, Thomas Eichenberger, Joachim Voight
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Patent number: 7217803Abstract: The present invention relates to azo dyes of formula (1) which are soluble in organic solvents, wherein R1 is —CN, —COOR5, —CONR6R7 or a heterocyclic ring, R2 is unsubstituted or substituted alkyl, unsubstituted or substituted aryl, —CF3, —COOR5, —CONR6R7 or —COR5, R3 is hydrogen, —SO3M, alkyl, alkoxy, alkylcarbonyl, —NO2 or halogen, R4 is substituted aryl, substituted heteroaryl or an aryl-N?N-aryl radical, wherein one or both of the aryl radicals in aryl-N?N-aryl is/are unsubstituted or substituted, or a radical heteroaryl-N?N-heteroaryl, wherein one or both of the heteroaryl radicals in heteroaryl-N?N-heteroaryl is/are unsubstituted or substituted, R5 is hydrogen, alkyl or unsubstituted or substituted aryl, R6 is hydrogen, alkyl or unsubstituted or substituted aryl, R7 is hydrogen, alkyl or unsubstituted or substituted aryl, M+ is a cation, n is a number 1, 2 or 3 and m is a number 1, 2 or 3, to a process for the preparation thereof and to the use thereof in the production of colored plastics or polymericType: GrantFiled: November 26, 2003Date of Patent: May 15, 2007Assignee: Ciba Specialty Chemicals CorporationInventors: Leonhard Feiler, Thomas Raimann, Thomas Eichenberger, Max Hügin
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Publication number: 20070066724Abstract: Bisazoquinolone pigments which, in one of the tautomeric forms thereof, correspond to formula (1) wherein W is the radical of an unsubstituted or substituted C6-C24aryl or the radical of an unsubstituted or substituted heteroaryl, Ar1 is unsubstituted or substituted C6-C24aryl or unsubstituted or substituted heteroaryl, Ar11 is unsubstituted or substituted C6-C24aryl or unsubstituted or substituted heteroaryl, R1 R1, R2, R10, R11, and R12 are each independently of the others hydrogen, C1-C6alkyl, halogen, cyano, CF3, nitro, NR3R4, COOR4, NR4COR3, COOX+, COR4, OR4, SR3, S02R3, S02NR3R4, S03-X+, or C6-C24aryl unsubstituted or mono- or poly-substituted by R5, R3 is C1-C6alkyl, or C6-C12aryl unsubstituted or mono- or polysubstituted by halogen, hydroxy, OR7, cyano, nitro, SR7, NR6R7, COOR7, CONR6R7, NR6COR7, NR6COOR7, COO—X+, COR4, OR4, S02R7, S02NR6R7, S03-X+ or by S03R7, R4 is hydrogen or has the same meanings as R3, R5 is hydrogen, C1-C4alkyl, halogen, nitro, NR7R8 or OR7, R6 is hydrogen or C1-C3alkyl, R7 andType: ApplicationFiled: June 4, 2004Publication date: March 22, 2007Inventors: Johannes Benkhoff, Max Hugin, Thomas Eichenberger
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Publication number: 20060053571Abstract: The present invention relates to azo dyes of formula (1) which are soluble in organic solvents, wherein R1 is —CN, —COOR5, —CONR6R7 or a heterocyclic ring, R2 is unsubstituted or substituted alkyl, unsubstituted or substituted aryl, —CF3, —COOR5, —CONR6R7 or —COR5, R3 is hydrogen, —SO3M, alkyl, alkoxy, alkylcarbonyl, —NO2 or halogen, R4 is substituted aryl, substituted heteroaryl or an aryl-N?N-aryl radical, wherein one or both of the aryl radicals in aryl-N?N-aryl is/are unsubstituted or substituted, or a radical heteroaryl-N?N-heteroaryl, wherein one or both of the heteroaryl radicals in heteroaryl-N?N-heteroaryl is/are unsubstituted or substituted, R5 is hydrogen, alkyl or unsubstituted or substituted aryl, R6 is hydrogen, alkyl or unsubstituted or substituted aryl, R7 is hydrogen, alkyl or unsubstituted or substituted aryl, M+ is a cation, n is a number 1, 2 or 3 and m is a number 1, 2 or 3, to a process for the preparation thereof and to the use thereof in the production of coloured plastics or polymType: ApplicationFiled: November 26, 2003Publication date: March 16, 2006Inventors: Leonhard Feiler, Thomas Raimann, Thomas Eichenberger, Max Hugin
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Patent number: 6600042Abstract: Preparation of pyrimido[5,4-g]pteridine of formula I wherein A1, A2, A3 and A4 are each independently of the others —NR1R2, wherein R1 and R2 are hydrogen, C1-C8alkyl, —CO—C1-C8alkyl, —CO—C6-C14aryl, —COO—C1-C8alkyl, —COO—C6-C14aryl, —CONH—C1-C8alkyl or —CONH—C6-C14aryl, or —OH, —SH, hydrogen, C1-C8alkyl, C1-C8alkoxy, or C6-C14aryl or —O—C6-C14aryl each unsubstituted or mono- or poly-substituted by halogen, nitro, cyano, —OR10, —SR10, —NR10R11, —CONR10R11, —COOR10, —SO2R10, —SO2NR10R11, —SO3R10, —NR11COR10 or by —NR11COOR10, wherein R10 and R11 are each independently of the other hydrogen, C1-C8alkyl, C5-C12cycloalkyl or C2-C8alkenyl, by a) reacting the pyrimidine of formula II with the pyrimidine of formula III in the presence of an acid and, if desired, of a solvent, the molar ratio ofType: GrantFiled: October 13, 2000Date of Patent: July 29, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Eichenberger, Max Hügin, Karl-Heinz Müller
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Patent number: 6126735Abstract: A process for mass coloring high molecular weight organic material by using a pyrimidopteridine of formula I and/or II ##STR1## or a mixture thereof, wherein A, B, C and D are each independently of one another --NH.sub.2, --OH, hydrogen, C.sub.1 -C.sub.4 -alkyl; phenyl, biphenyl or naphthyl which are unsubstituted or substituted by halogen, --OH, --NH.sub.2, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; --NHR.sub.1, --N(R.sub.1).sub.2 or ##STR2## wherein R.sub.1 is C.sub.1 -C.sub.4 alkyl; phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 -alkoxy, or --COXR.sub.2,X is a direct bond, --O-- or --NH--, andR.sub.2 is C.sub.1 -C.sub.4 alkyl; phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 -alkoxy, with the proviso that at least two of the radicals A, B, C and D are --NH.sub.2 or --OH.Type: GrantFiled: October 5, 1998Date of Patent: October 3, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Eichenberger, Max Hugin
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Patent number: 6120956Abstract: The 2,4,5,7-tetraaminopyrimido[5,4-g]pteridine ##STR1## characterized by a hue-angle h of not less than 98, processes for preparing the pteridine I of the invention, novel, insoluble 2,4,5,7-tetraaminopyrimido[5,4-g]pteridine salts, their preparation and the use of the pteridines of the invention.Type: GrantFiled: April 20, 1999Date of Patent: September 19, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Eichenberger, Mathias Duggeli, Max Hugin
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Patent number: 5785720Abstract: The present invention relates to a process for bulk coloration of high molecular weight organic material, which comprises the use of a compound of the formula (I) ##STR1## in which Q is O or S, and X is C(R.sub.3) or N,R.sub.1, R.sub.2 and R.sub.3 independently of one another are hydrogen, halogen chosen from the group consisting of chlorine, bromine and fluorine, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, hydroxyl, cyano, nitro, amino, morpholino, ##STR2## in which A.sub.1 and A.sub.2 independently of one another are unsubstituted or substituted C.sub.6 -C.sub.12 aryl or C.sub.3 -C.sub.12 heteroaryl, which contains, in the ring system, 1 to 3 hetero atoms chosen from the group consisting of N, O and S, and E.sub.1 is ##STR3## or R.sub.1 and R.sub.2 together, or R.sub.1 and R.sub.3 together, are a radical A.sub.3,which A.sub.3 is unsubstituted or substituted C.sub.4 -C.sub.8 alkenylene or C.sub.8 -C.sub.12 arylene.Individual novel compounds of the formula (I) are claimed themselves.Type: GrantFiled: September 6, 1996Date of Patent: July 28, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Eichenberger, Thomas Ruch
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Patent number: 5476949Abstract: Finely divided 1,4-diketopyrrolo[3,4-c]pyrroles of the formula ##STR1## where A and B are each independently of the other a radical of the formula ##STR2## wherein at least 84% by weight of the particles have a Stokes equivalent diameter of .ltoreq.0.25 .mu.m, and mixtures thereof.The substituents R.sub.1 and R.sub.2 are defined in claim 1.These pigments are notable for a very pure hue and outstanding transparency.Type: GrantFiled: July 21, 1994Date of Patent: December 19, 1995Assignee: Ciba-Geigy CorporationInventors: Olof Wallquist, Gary Wooden, Thomas Eichenberger, Ingo Schloder