Degussa Aktiengesellschaft

Evonik Carbon Black Gmbh

Evonik Degussa Gmbh

Umicore Ag & Co Kg

Degussa - Huls Ag

Orion Engineered Carbons Gmbh

Ralph McIntosh

Gerd Tauber

Werner Kalbitz

Alfons Karl

Heinz Zoch

Stephan Lüdtke

Thomas Lüthge

Klaus Huthmacher

Christoph Batz-Sohn

Mario Scholz

Horst Weigel

Hans Joachim Hasselbach

Steffen Hasenzahl

Karl-Anton Starz

Klaus Bergemann

Peter Biberbach

Bernd Drapal

Frank Stenger

Horst Kleinhenz

Nongyuan Shi

Karsten Ruth

Bernd Knackfuss

Rüdiger Mertsch

Jutta Zimmermann

Thomas Luethge

Egon Fanghaenel

Mandy Mühlbach

Stephan Luedtke

Stephan LÜDTKE

Gerd Schukat

Egon Fanghänel

Christian GÖTZ

Mandy MÜHLBACH

The invention relates to a pigment granulate which contains 40 to 65% by weight of pigment and at least 10% by weight of a compound of general formula (I) CH&#x2014;(CH)&#x2014;CH&#x2014;O&#x2014;[(CH)&#x2014;O]&#x2014;H, wherein n=8-18, p=1-4 and m=35-100, the weight ratio of the compound of general formula I to the pigment being &#x2267; the STSA surface area of the pigment in m/g multiplied by 0.0021 g/mand the mass-weighted particle size of the pigment granulate being &#x3c;20 &#x3bc;m. The pigment granulate can be produced by dispersing the pigment and the compound of formula I in a solvent and then drying the dispersion obtained. The pigments according to the invention can be used for dying and/or the antistatic finishing in water-based paints and lacquer systems, dispersion on paints, printing inks, ink systems and coating systems.

Pigment granulate, method for producing the same and use thereof

Ink jet ink containing at least one pigment and at least one oxidized carbon black. The ink jet ink is prepared in a process wherein the pigment is dispersed in at least one solvent, followed by addition of the oxidized carbon black and renewed dispersing. The ink jet ink can be used for printing textiles, metal, foil, film, sheet, glass and paper.

Ink jet ink

Pigment preparation containing at least one pigment and at least one compound of the general formula CH&#x2014;(CH)&#x2014;CH&#x2014;O&#x2014;[(CH)&#x2014;O]&#x2014;H. The pigment preparation can be produced by dispersing and drying. It can be used for coloration and/or antistaticization in waterborne color and varnish systems, emulsion paints, printing inks, liquid-ink systems and coating systems.

Pigment preparation, method for producing the same and its use

Aqueous, colloidal gas black suspension containing: 

Aqueous, colloidal gas black suspension

Aqueous, colloidal gas black suspension, containing a gas black, an azo compound of formula 1,and water. The aqueous, colloidal gas black suspensions is produced in that the gas black and the azo compound of general formula 1 are dispersed in water. It may be used to produce inks, ink jet inks, paints, printing inks, latices, textiles, leather, adhesives, silicones, plastics materials, concrete and construction materials.

A carbonaceous material with organic groups obtainable by reacting carbonaceous material with organic compounds of the general formula IR&#x2014;N&#x2550;N&#x2014;R&#x2003;&#x2003;(I).The carbonaceous material with organic groups is produced by reacting the carbonaceous material with an organic compound of the general formula I. The material may be used as a filler, reinforcing filler, UV stabilizer, conductive carbon black or pigment.

Carbonaceous material

The invention provides a process for preparing a platinum-ruthenium catalyst and the catalyst prepared therewith. The catalyst can be supported on a support material in powder form or may also be unsupported. To prepare the supported catalyst, the support material is suspended in water and the suspension is heated to at most the boiling point. While keeping the temperature of the suspension the same, solutions of hexachloroplatinic acid and ruthenium chloride are then added to the suspension, then the pH of the suspension is increased to a value between 6.5 and 10 by adding an alkaline solution and the noble metals are thus precipitated onto the support material. Afterwards, one or more organic carboxylic acids and/or their salts are added to the suspension and the catalyst is chemically reduced, washed, dried and optionally subsequently calcined under an inert or reducing atmosphere at a temperature between 300 und 1000&deg; C. The catalyst is characterised by a high tolerance to carbon monoxide poisoning in the fuel cell.

Process for preparing an anode catalyst for fuel cells and the anode catalyst prepared therewith

A process for the production of modified carbon black, in which a carbon black dispersion containing carbon black, water and wetting agent, is mixed with an acid, aqueous solution or suspension of a primary amine and then reacted with sodium nitrite solution.

Process for the production of modified carbon black

Preparation of 2,3,5-trimethylhydroquinone diesters by rearrangement of 2,6,6-trimethylcyclohex-2-ene-1,4-dione (4-oxo-isophorone, ketoisophorone) in the presence of a solid, acid catalyst and an acylating agent, for example carboxylic acid anhydrides or carboxylic acid halides. The 2,3,5-trimethylhydroquinone diester may then optionally be saponified to the free 2,3,5-trimethylhydroquinone, which is a valuable building block in the synthesis of vitamin E.

Process for the preparation of 2,3,5-trimethylhydroquinone diesters

Growing community of inventors

Hanau, Germany

Ralph McIntosh