Clariant Corporation

Clariant Produkte (deutschland) Gmbh

Clariant International Ltd

Hoechst Aktiengesellschaft

Clariant Finance (bvi) Limited

Lariant Produkte (deutschland) Gmbh

Joachim Weber

Erwin Dietz

Manfred Urban

Felix Wendelin Grimm

Leonhard Unverdorben

Dieter Schnaitmann

Uwe Nickel

Gerhard Wilker

Olaf Schupp

Klaus Brychcy

Hans Joachim Metz

Christian Wille

Martin Boehmer

Manfred Opravil

Juergen Patzlaff

Hans-Tobias Macholdt

Andreas Wacker

Ruediger Jung

Klaus Kund

Frank Alfter

Joerg Schueller

Martin B&ouml;hmer

Martin Ulrich Schmidt

Matthias Ganschow

Ulrike Rohr

Klaus Saitmacher

Karl-Heinz Schweikart

Heinfred Ohleier

Bernd Nestler

Magali Meder

Hans-Joachim Metz

Thomas Hundsdorf

J&ouml;rg Jung

Margit Haberlick

Kristina Schiffer

Wojciech Nieradzik

Werner Sindermann

Patrick Hoetzel

Heidrun Mehler

The invention relates to a pigment preparation which contains the monoazo pigment of the formula (I) and 0.1% to 40%, preferably 0.5% to 25%, in particular 1.0% to 17.5% of a pigment dispersant, in relation to the weight of the monoazo pigment of the formula (I), which is composed of disazo compounds at least 30% of the diazo compounds forming an asymmetric disazo compound of the formula (II)Y-X-A-X-Z&#x2003;&#x2003;(II),in which

Pigment preparation based on an azo pigment

A method for the production of a phthalocyanine pigment preparation includes finely distributing a crude phthalocyanine pigment by dry milling, wet milling, salt kneading, acid pasting or acid swelling to give a pre-pigment, the pre-pigment is subjected to a finishing treatment in a mixture of water and an organic solvent at alkaline pH, increased temperature and in the presence of at least one pigment dispersant from the group of phthalocyanine sulphonic acids, phthalocyanine carboxylic acids, phthalocyanine sulphonate salts, phthalocyanine carboxylate salts and phthalocyanine suiphonamides.

Method for the production of phthalocyanine pigment preparations

A pigment preparation comprising C.I. Pigment Yellowof formula (I) as base pigment and C.I. Pigment Yellowof formula (II) as pigment dispersant. 

Monoazo pigment preparations based on C.I. Pigment Yellow 74

A pigment preparation comprising at least one copper phthalocyanine pigment from the group of C.I. Pigment Blue 15, 15:0, 15:1,15:2, 15:3, 15:4, and 15:6, and at least one pigment dispersant of the formula (I), in which n is a number 1, 2, 3 or 4.

Pigment preparations based on phthalocyanine pigments

The invention relates to the use of pigment preparations comprising C.I. Pigment Yellow 74 as base pigment and one or more pigment dispersants of the formula (I) wherein

Use of a pigment preparation based on C.I. pigment yellow 74

A pigment composition containing one or more, organic yellow pigments selected from the group C.I. Pigment Yellow (213), Pigment Yellow (214) and disazo pigment of the formula (I) and containing one or more inorganic pigments.

Pigment compositions consisting of organic and inorganic pigments

A green pigment preparation that is characterized by a C.I. Pigment Yellow 214 and at least one copper phthalocyanine pigment C.I. Pigment Blue 15:3 and/or C.I. Pigment Blue 15:1 content, the ratio of C.I. Pigment Yellow 214 to the at least one copper phthalocyanine pigment being in the range from 1:20 to 20:1. The inventive pigment preparation are especially suitable for the low-warpage colouring of semicrystalline plastics with pure green tones.

Green pigment preparations

A pigment composition containing a disazo pigment of formula (I) and at least one pigment from the group of organic orange, red and violet pigments 

Pigment compositions consisting of a yellow disazo pigment and an organic pigment

A method for the production of a diazo pigment, or a mixture of diazo pigments, according to formula (I) of the specification by azo coupling, wherein the azo coupling product is subjected to a finish in an organic solvent or in an agueous organic solvent with a neutral or alkaline pH.

Method for producing disazo pigments

A copper phthalocyanine pigment preparation contains a copper phthalocyanine pigment and at least one pigment dispersant from the group of copper phthalocyanine sulfonic acids and copper phthalocyanine sulfonic acid salts. The inventive pigment preparation is characterized by a) a maximum dynamic viscosity of 180 mPas and/or a maximum thixotropy of 800 Pa/s, the dynamic viscosity and the thixotropy being determined by a rotary viscometer at a temperature of 23&#xb0; C. in a pigment dispersion comprising 28 percent by weight of dry copper phthalocyanine pigment preparation, 9 percent by weight of nitrocellulose, 62.3 percent by weight of ethanol, and 0.7 percent by weight of ethyl acetate; and b) a color intensity such that a printing ink consisting of an ethanol/nitrocellulose gravure varnish, containing 75 to 65 percent by weight of ethanol and 9 to 11 percent by weight of nitrocellulose at a ratio of 2 to 7.5, and a maximum amount of dry copper phthalocyanine pigment preparation of 6.6 percent by weight relative to the total weight of the printing ink, reaches the &#x2153; standard depth of shade of the corresponding tone.

Phthalocyanine pigment preparations

A pigment preparation comprising a) at least one diketopyrrolopyrrole pigment of the formula (V) as a base pigment and b) at least one pigment dispersing agent based on sulphonated diketopyrrolopyrrole derivatives and the use thereof for the undistorted coloration of plastics 

Pigment preparations based on diketopyrrolopyrrole pigments for the undistorted pigmentation of partially crystalline plastics

The invention provides novel pigment dispersants of the formula (I):in which Q is a radical of the formula (Ia):

Pigment dispersants based on diketopyrrolopyrrole compounds and pigment preparations

The invention relates to a method for producing vattable organic pigments. The invention is characterized in that an agueous or an aqueous-organic suspension of a coarse crystalline raw mineral is vatted and re-oxidised, and the pigment suspension is ground to a diameter equal to or less than 0.9 mm during vatting and/or during oxidation by means of an agitator ball mill, which is operated at a power density of more than 1.0 KW per litre per grinding chamber and at an agitator peripheral speed of more than 12 m/s, using grinding bodies.

Method for producing vattable organic pigments

The invention provides novel pigment dispersants of the formula (I)in which is a radical of the formula (Ia)s is a number from 0.1 to 4.0 andn is a number from 0 to 2.0;and provides pigment preparations comprising an organic base pigment and a pigment dispersant of the formula (I).

The invention provides novel pigment dispersants of the formula (I)in which Q is a radical of the formula (Ia)

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Frankfurt am Main, Germany

Joachim Weber