Clariant Finance (bvi) Limited

Clariant Produkte (deutschland) Gmbh

Clariant Corporation

Carsten Plueg

Matthias Ganschow

Tanja Reipen

Hans Joachim Metz

Alexander Woerndle

Lars Schneider

David Blum

Jens Reichwagen

Andreas Voigt

Martin Ulrich Schmidt

Peter Kempter

Jesús Pitarch López

Karl-Heinz Schweikart

Frank Alfter

Gemma Solduga Ramirez

Gerald Mehltretter

Roland Born

Thomas Metz

Lars Daehne

Lutz Kroehne

Jan Moeschwitzer

Jens Paetzold

Janina Ohnsmann

The invention relates to single phase solid solutions containing 65 to 98 wt.-% unsubstituted quinacridone, 1 to 34 wt.-% 2,9-dimethylquinacridone and 1 to 10 wt.-% 2,9-dichloroquinacridone, relative to the total weight of the single phase solid solution.

Magenta quinacridone pigments

The invention relates to reaction products of amines with polymers containing dicarboxylic acids anhydride groups, method for the production thereof and use thereof as a dispersing additive for pigments. The invention also relates to solid pigment preparations containing said reaction products.

Pigment disperser and easily dispersed solid pigment preparations

The invention relates to the dimeric compound of formula (II)  wherein the two monomer-units are linked with each other either via Ror via R; the ring A is a five-or six-membered heteroaromatic ring, one of the groups Ror Ris an unsubstituted or substituted phenylene radical, the remaining group Ror Ris a C-Calkyl, C-Ccycloalkyl, an unsubstituted or substituted phenyl, benzyl, benzanilide or naphthyl; or wherein the group NRtogether with the ring A constitutes a five-or six membered heterocycle that can be annelated with a benzene ring, and Ris an unsubstituted or substituted phenylene radical. The inventive compounds can be used for pigmenting high-molecular organic materials.

2,4-dioxopyrimidine-based mesoionic pigments

The invention relates to a pigment composition that is composed of compounds of formulas (I), (II) and (III), is characterized by a average particle size dranging from 10 to 60 nm, less than 5% by volume of the particles being greater than 70 nm, and can be obtained by reacting of 1 mol of a succinic acid diester with 2 mol of a mixture of nitriles A-CN and B-CN nitriles, the molar ratio of A-CN and B-CN in the nitrile mixture being in the range from 99.5:0.5 to 85.0:15.

Diketopyrrolopyrrole pigment composition for use in color filters

The invention concerns a process for encapsulating pigment particles, which comprises

Polyelectrolyte-encapsulated pigments

The invention provides a method of conditioning azo pigments containing carboxylic ester groups, using glycol monoalkyl ethers or mixtures of glycols and glycol dialkyl ether.

Method of conditioning azo pigments containing carboxylic ester groups

The invention provides a pigment preparation comprising 

P.R. 254 pigment preparation for use in color filters

The invention relates to a pigment preparation containing (a) 50-99 percent by weight of at least one pigment, (b) 1 to 50 percent by weight of an additive based on polyalkylene glycols, and (c) 0 to 10 percent by weight of an auxiliary agent from among the group comprising fillers, fire retardants, preservatives, light-stability agents, pigmentary and non-pigmentary dispersing agents, surfactants, antioxidants, foam inhibitors, resins, and antistatic agents, the percentages being in relation to the total weight of the pigment preparation. The additive that is based on polyalkylene glycols corresponds to formula Z'-[-(AO&#x2014;)&#x2014;B-T-X&#x2014;Y]&#x2014;Z (1), wherein AO represents a C-Calkyleneoxy unit, B represents a C-Calkylene radical, and T represents &#x2014;NR&#x2014;, X represents one of the groups (formula), and Y represents a chemical bond or &#x2014;NR&#x2014;.

Universal stir-in pigments

The invention relates to novel triphendioxazine pigments of formula (I) wherein X represents hydrogen or chlorine, while Rrepresents phenyl substituted by one to five radicals from the group comprising C-C-alkyl, halogen, C-C-alkoxy, acetylamino, aminocarbonyl, methylaminocarbonyl and C-C-alkoxycarbonyl, or phenyl annelated in the 2,3- or 3,4- with a divalent radical of the formula &#x2014;NH&#x2014;(CO)&#x2014;NR&#x2014;, &#x2014;CR&#x2550;CH&#x2014;CO&#x2014;NH&#x2014;, &#x2014;CR&#x2550;N&#x2014;CO&#x2014;NH&#x2014;, &#x2014;CO&#x2014;NH&#x2014;CO&#x2014;NR&#x2014;, &#x2014;CO&#x2014;(NH)&#x2014;CO&#x2014; or &#x2014;O&#x2014;(CO)&#x2014;NH&#x2014; so as to form a five- or six-membered ring, Rrepresenting hydrogen, methyl, ethyl or phenyl and m representing 1 or 2.

Triphendioxazine pigments

A process for warpage-free pigmentation of a plastic pigmented by a phthalocyanine pigment which was heated to not less than 80&#xb0; C. as a suspension in a organic solvent in the presence of a carboxylic acid containing 2, 3 or 4 carboxyl groups or a salt of such a carboxylic acid.

Method for pigmenting semi-crystalline plastics with phthalocyanine pigments in a non-warping manner

The invention relates to a process for aftertreating organic pigments which comprises heating the unground or ground organic crude pigment in water and/or organic solvents by means of microwave irradiation, under pressure if desired, so that the mass temperature of the mixture reaches 30 to 250&#xb0; C.

Growing community of inventors

Seeheim-Jugenheim/Ober-Beerbach, Germany

Carsten Plueg