Ciba Specialty Chemicals Corporation

Basf Se Corporation

Ciba-geigy Corporation

Basf Se Ludwigshafen

Thomas Eichenberger

Thomas Ruch

Christoph Krebs

Olof Wallquist

Ursula Luterbacher

Max Hügin

Max Hugin

Jean-Marie Adam

Thomas Schäfer

Stefan Hari

Kristina Bardon

Hans Reichert

Natalia Chebotareva

Fritz Herren

Marc Maurer

Frank Oliver Heinrich Pirrung

Margherita Fontana

Bernd Lamatsch

Gary Wooden

Takashi Deno

Leonhard Feiler

Andreas Gernandt

Ingo Schloder

Marian Lanz

Thomas Raimann

Andrea Ricci

Joachim Voigt

Ralf Bauer

Dario Perera

Ulrich Veith

Max H&uuml;gin

Karl-Heinz M&uuml;ller

Sibylle Soder

Mathias Duggeli

Peter Sutter

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.

Migration-free coloured copolycondensates for colouring polymers

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&#xb0; C. has a pK&#x2266;4.5. For the definition of Rto R, 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. The specification also relates, furthermore, to the use of the black colorants of the invention for coloring paints, printing inks and plastics in the mass, and to mulch film, instrument panels, woven fabrics, garden furniture items or elements for the construction industry that are pigmented with said colorants. 

Organic black pigments and their preparation

Described is a pigment dispersion which is useful for electrophoretic displays comprising &#x3b1;) a bis-oxodihydro-indolylene-benzodifuranone colorant of the Formula (I) wherein the substituents are defined as in claim, &#x3b2;) a specific polymeric dispersant, and &#x3b3;) a solvent which is suitable for dispersions used in electrophoretic displays. Also described are novel colourants and dispersants. 

Black pigment dispersion

The present invention relates to electronic devices, especially electroluminescent devices, comprising azapyrenes of formula (I), or formula (III), wherein Y, Y, Y, Y, X, Xand Xare independently each other N, or CR, with the proviso that at least one of the groups X, Xand Xis a group CR, Ris hydrogen, F, &#x2014;SiRRR, or an organic substituent, Ris hydrogen, F, &#x2014;SiRRR, or an organic substituent, or any of the substituents R, Rand R, 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 R, Rand Rare independently of each other a C-Calkyl group, a C-Caryl group, or a C-Caralkyl 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 R, or Ris a group Q; especially as host for phosphorescent emitters, electron transporting materials, or emitter materials. The hosts may function with phosphorescent materials to provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices. 

Azapyrenes for electronic applications

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 &#x394;E* (black/white) in masstone below 22.0&#xb1;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.

2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-benzoic acid and a process for its preparation

The present invention relates to the field of color filters and LCDs. More specifically, the invention relates to a colorant composition for making color filters comprising pyrimido[5,4-g]pteridine derivatives of formula (I) wherein A1, A2, A3, and A4 are each independently of the others &#x2014;NR1R2, wherein R1 and R2 are each independently of the others hydrogen, CrC8alkyl, &#x2014;CO&#x2014;C1-C8alkyl, &#x2014;CO&#x2014;Ce&#x2014;Cuaryl, &#x2014;COO&#x2014;C1-C8alkyl, &#x2014;COO&#x2014;Ce&#x2014;CMaryl, &#x2014;CONH-d-C&#x3b2;alkyl or &#x2014;CONH&#x2014;Ce-CMaryl, Or A1, A2, A3, and A4 are each independently of the others &#x2014;OH, &#x2014;SH, hydrogen, CrC8alkyl, CrC8alkoxy, or C6-C14aryl or &#x2014;O&#x2014;C6-C14aryl each unsubstituted or mono- or poly-substituted by halogen, nitro, cyano, &#x2014;OR10, &#x2014;SR10, &#x2014;NR10R11, &#x2014;CONR10R11, &#x2014;COOR10, &#x2014;SO2R10, &#x2014;SO2NR10R11, &#x2014;SO3R10, &#x2014;NR11COR10 or by &#x2014;NR11COOR10, wherein R10 and R11 are each independently of the others hydrogen, CrC8alkyl, C5-C12cycloalkyl or C2-C8-alkenyl; and to their use for color filter production and to color filters comprising said pyrimido[5,4-g]pteridine derivatives of formula (I). 

Use of pyrimido[5,4-g]pteridines as shading component in color filter colorant compositions

The present invention relates to azo dyes of formula (1) which are soluble in organic solvents, wherein Ris &#x2014;CN, &#x2014;COOR, &#x2014;CONRRor a heterocyclic ring, Ris unsubstituted or substituted alkyl, unsubstituted or substituted aryl, &#x2014;CF, &#x2014;COOR, &#x2014;CONRRor &#x2014;COR, Ris hydrogen, &#x2014;SOM, alkyl, alkoxy, alkylcarbonyl, &#x2014;NOor halogen, Ris substituted aryl, substituted heteroaryl or an aryl-N&#x2550;N-aryl radical, wherein one or both of the aryl radicals in aryl-N&#x2550;N-aryl is/are unsubstituted or substituted, or a radical heteroaryl-N&#x2550;N-heteroaryl, wherein one or both of the heteroaryl radicals in heteroaryl-N&#x2550;N-heteroaryl is/are unsubstituted or substituted, Ris hydrogen, alkyl or unsubstituted or substituted aryl, Ris hydrogen, alkyl or unsubstituted or substituted aryl, Ris hydrogen, alkyl or unsubstituted or substituted aryl, Mis 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 polymeric color particles, and as printing inks, printing dyes, coating compositions and wood stains 

Benzimidazole-pyridone-based azo dyes

Process for the preparation of pyrimido&lsqb;5,4-g&rsqb;pteridine derivatives

Process for coloring high molecular weight organic material and

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.

Yellow pteridine having a hue-angle of at least 98

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,

Process for coloring high molecular weight material with polycyclic

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.

Finely divided highly transparent diketopyrrolopyrrole pigments

Mixed crystals of at least two different compounds of formula ##STR1## wherein A and B are each independently of the other a cation of formula ##EQU1## or N.sup.+ H(R.sub.1)(R.sub.2)(R.sub.3) M is a mono-, di- or trivalent metal cation, n is 1, 2 or 3, R.sub.1, R.sub.2 and R.sub.3 are each independently of one another hydrogen, C.sub.1 -C.sub.22 alkyl, C.sub.7 -C.sub.24 aralkyl, C.sub.5 -C.sub.6 cycloalkyl or C.sub.6 -C.sub.18 aryl, m is 0 or 1, and R is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, in which compounds of formula I that form the mixed crystals the cations A and B constitute a composite structure ##EQU2## wherein x is a value from 0.2 to 0.8, and the X-ray diffraction pattern of said mixed crystals differs from that of the corresponding compounds in which x is 1 or 0. These mixed crystals can be used as pigments for colouring organic material of high molecular weight and have exceptional properties, especially dispersibility, heat- and lightfastness.

Mixed crystals of sulfonated diketopyrrolopyrroles

Dyes of formula ##STR1## wherein D is the radical of a diazo component of the benzene or naphthalene series or of the heterocyclic series, R.sub.1 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.2 is phenyl or substituted phenyl, give dyeings of good fastness properties on nitrogen-containing or hydroxyl group containing fibre materials.

Azodyes containing a sulfoacetoacetic acid anilide coupling component

Growing community of inventors

Basel, Switzerland

Thomas Eichenberger