Ciba Specialty Chemicals Corporation

Ciba-geigy Corporation

Dai Nippon Printing Co., Ltd.

Ciba Specialty Chemical Holding, Inc.

Zhimin Hao

Abul Iqbal

John S Zambounis

Olof Wallquist

Patrice Bujard

Philippe Bugnon

Ulrich Schadeli

Franck Rey Flandrin

Guo-Hua Hu

Henri Dubas

Toshio Yoshihara

Gerardus De Keyzer

Jin Mizuguchi

Fritz Herren

Shivakumar Basalingappa Hendi

Bernhard Medinger

V&eacute;ronique Hall-Goulle

Leonhard Feiler

Kiyoshi Itou

Kazuhiko Nakamura

Hitoshi Nagasue

Minoru Furukawa

Heinz Wolleb

Sameer H Eldin

Fridolin Babler

Rudolf Kirchmayr

Alain C Rochat

Hiroshi Yamamoto

Bernd Lamatsch

Eric Tinguely

Véronique Hall-Goulle

Veronique Hall-Goulle

Klaus Praefcke

Hans-Thomas Schacht

Fridolin B&auml;bler

Ingo Schloder

Robert Moretti

Patrick Verhoustraeten

Johannes Leugs

Ryuichi Takahashi

Seiji Homma

Abul Igbal

Kazuyo Yamamoto

Nancy Tebaldi

Ulrich Sch{umlaut Over (a)}deli

Nancy Schl&ouml;der-Tebaldi

There are provided a pigment-containing coloring material stably dispersible in a high concentration in various organic solvents, and a process for producing the same. The production process of the coloring material is characterized by comprising the steps of: providing a solution comprising (1) a soluble pigment precursor which is convertible into an insoluble pigment, (2) a solvent capable of dissolving the soluble pigment precursor therein, and (3) a stabilizing agent comprising an organic compound having a structure or a functional group capable of stabilizing the dispersibility of the insolubilized pigment in the solvent; and converting said soluble pigment precursor into an insoluble pigment to obtain the coloring material containing the insolubilized pigment dispersed stably in the solvent.

Coloring material and color filter

The invention relates to the use of compounds of the formulaR, R, Rand Rindependently of one another are hydrogen, halogen, R, ORor SR, Ris hydrogen or linear or branched C-Calkyl, benzyl or phenethyl, and Ris an apolar group which is unsubstituted or substituted one or more times by halogen or by OC-Calkyl, with the proviso that if Ris hydrogen, R, R, Ror Ris R, ORor SR, as additives in the pigmentation of partially crystalline plastics, especially those processed by injection moulding, with pigments containing at least one each of groupswhich are joined to one another asor are in conjugation with one another. Preferred pigments are quinacridone pigments, disazo condensation pigments, isoindolinone pigments and pyrrolo[3,4-c]pyrrole pigments, especially pyrrolo[3,4-c]pyrrole pigments. Corresponding formulations and novel compounds are likewise claimed. By these means it is possible to avoid warping.

Warp-free pigment compositions comprising diaryldiketopyrrolo[3,4-c]pyrroles

The present application relates to a process for the manufacture of pigmented vitreous materials, as well as to pigmented vitreous materials, characterized by the use of soluble pigment precursors and preferably the absence of significant amounts of dispersants. These pigmented vitreous materials can be used as colored materials for any known purposes. Soluble pigment precursors comprising a partial structureare also claimed, wherein Xis an aromatic or heteroaromatic ring, B is hydrogen or a group of the formulabut at least one group B is not hydrogen, and L is a solubilizing group.

Pigmented vitreous material

Warp-free pigment compositions comprising diaryldiketopyrrolo&lsqb;3,4-c&rsqb;pyrroles

A coloured porous material comprising in its pores an effectively colouring amount of an organic pigment which is obtainable by fragmenting a meltable or solvent-soluble pigment precursor, and a process for its preparation. The instant coloured porous material powders are used as pigments for high molecular weight organic materials.

Pigmented porous material

Compounds for mass colouration of high temperature polymers

Fluorescent diketopyrrolopyrroles

Preparation of alkylthio- and/or arylthio-substituted diketo-diaryl-pyrrolopyrroles

Fluorescent pigments

An injection-molding process using warp-free pigment compositions including diaryldiketopyrrolo&lsqb;3,4-C&rsqb;pyrroles to improve the dimensional stability of the injection molded product by decreasing warping wherein the constituents of the formulation being injection molded are added into an injection molding machine in ready-premixed form or simultaneously as individual components. Preferred pigments are quinacridone pigments, disazo condensation pigments, isoindolinone pigments and pyrrolo&lsqb;3,4-C&rsqb;pyrrole pigments with pyrrolo&lsqb;3,4-C&rsqb;pyrrole pigments being especially preferred.

Injection molding process using warp-free pigment compositions comprising diaryldiketopyrrolo-&lsqb;3,4-c&rsqb;pyrroles to improve dimensional stability

Compounds for mass coloration of high temperature polymers

The present invention relates to a process for pigmenting a porous sintered material comprising boride, carbide, silicide, nitride or phosphide compounds by applying a solution of a soluble pigment derivative to the non-coloured sintered material and regenerating the organic pigment by heating, whereby the organic pigment is deposited into the sintered material's pores, as well as to the new pigmented sintered materials themselves.

Heat stable, pigmented sintered material comprising a boride, carbide, silicide, nitride or phosphide

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Marly, Switzerland

Zhimin Hao