Clariant Finance (bvi) Limited

Clariant Produkte (deutschland) Gmbh

Tanja Reipen

Carsten Plueg

Lars Schneider

David Blum

Jens Reichwagen

Matthias Ganschow

Carsten Plüg

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 provides a pigment preparation comprising 

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

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

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Mainz, Germany

Tanja Reipen