Clariant Finance (bvi) Limited

Clariant Corporation

Clariant Produkte (deutschland) Gmbh

Klaus Kund

Uwe Nickel

Erwin Dietz

Joachim Weber

Olaf Schupp

Bernd Nestler

Leonhard Unverdorben

Martin Ulrich Schmidt

Felix Wendelin Grimm

Rudolf Steiner

Frank Alfter

R&uuml;diger Jung

Wolfgang Winter

Willi Rauschmann

The invention relates to a powdery dye composition consisting essentially of C.I. Pigment Red 170 (C.I. No. 12475) and barium sulfate, wherein the barium sulfate is added before or during the production process of the C.I. Pigment Red 170. The inventive addition of barium sulfate enables non-homogeneities and caking to be avoided in the mixture.

Dye composition for dyeing powder coatings

Organic pigments are conditioned by introducing a liquid prepigment suspension into a miniaturized continuous reactor and thermally treating therein.

Conditioning of organic pigments

A process for preparing disazo condensation pigments by diazotization of an aromatic amine, azo coupling with a coupling component to form an azocarboxylic acid or azodicarboxylic acid, formation of an azocarbonyl chloride or azodicarbonyl dichloride and condensation of the azocarbonyl chloride with an aromatic diamine or of the azodicarbonyl dichloride with an aromatic amine comprises effecting the acyl chloride formation and/or the condensation and optionally the diazotization and optionally the azo coupling in a microreactor.

Preparation of disazo condensation pigments in microreactors

The invention provides a process for aftertreating organic pigments by causing the ground or unground crude organic pigment and liquid or supercritical carbon dioxide to act on one another.

Finishing treatment of pigments in liquid or supercritical CO2

Growing community of inventors

Langenscheid, Germany

Klaus Kund