Evonik Carbon Black Gmbh

Degussa Aktiengesellschaft

Evonik Degussa Gmbh

Orion Engineered Carbons Gbmh

Orion Engineered Carbons Gmbh

Joachim Fröhlich

Alfons Karl

Werner Niedermeier

Conny Vogler

Michael Stanyschöfsky

Klaus Bergemann

Uwe Schachtely

Burkhard Freund

Frank Stenger

Johann Mathias

Arndt-Peter Schinkel

Manfred Dannehl

Heinz Zoch

Thomas Pelster

Ralph Hofmann

Paul Dieter Messer

Thomas Lüthge

Bernd Knackfuss

Bernhard Schwaiger

Rainer Friehmelt

Jutta Zimmermann

Michael Warskulat

Egon Fanghänel

Gernot Meinerzhagen

Paul Messer

Egon Prof Fanghänel

The invention relates to carbon black having a C-14 content greater than 0.05 Bq/g and a ratio &#x394;D50/Dmode of the aggregate size distribution of less than 0.7. The carbon black is produced by thermal oxidative pyrolysis or thermal cleavage of the carbon black raw material in that the carbon black raw material contains renewable carbon black raw materials and an oxygen deficiency is present in the pyrolysis/cleavage reaction. The carbon blacks can be used in rubber and rubber mixtures, plastic, printing inks, inks, inkjet inks, toners, lacquers, paints, paper, adhesives, batteries, pastes, bitumens, concrete, and other building materials and as reducing agents in metallurgy.

Carbon black, method for the production thereof, and use thereof

The invention relates to a carbon black with a CTAB surface area of from 20 to 49 m/g, with a COAN greater than 90 ml/(100 g), and with a sum of OAN and COAN greater than 235 ml/(100 g). The carbon black is produced in a furnace reactor, where from 20 to 55% by weight of the feedstock used for the carbon black are introduced radially through a nozzle within the first third of the reaction zone, and the remaining amount of the feedstock used for the carbon black is introduced through a nozzle upstream at least one further point into the reactor. The carbon black can be used in rubber mixtures.

The invention relates to black having a CTAB surface area of 100 to 160 m?/g, a quartile ratio of more than 1.60, and an FP index of &#x3e;0. Said black is produced in a furnace reactor. Sixty to 90 percent by weight of the raw black material are injected into the reactor in the first third of the reaction zone, while the remaining amount of the raw black material is injected into the reactor upstream at least in one other point. In addition, the combustible is conducted such that 90 to 100 percent by weight of the combustible are evaporated when first hitting the raw black material and 80 to 99 percent by weight of the combustible are evaporated 5 ms before hitting the raw black material. Said blacks can be used in rubber mixtures.

Black, method for the production thereof, and use thereof

Rubber mixtures are prepared by using, alongside the other constituents, pyrogenically prepared silicon dioxide in the form of crusts whose tamped bulk density (to DIN EN ISO 787-11) is from 185 to 700 g/l.

Process for preparation of rubber mixtures containing silicon dioxide

Carbon black having organic groups, the organic group containing a thiocyanate group. Also described is a process for the production of the carbon black, wherein carbon black is reacted with organic compounds containing a C&#x2014;C double or triple bond, which is not part of an aromatic system, whose C&#x2014;C double or triple bond is activated by at least one substituent, and the organic compound contains at least one thiocyanate group. The carbon black according to the invention can be used in rubber compounds.

Carbon black

Growing community of inventors

Neumarkt, Germany

Joachim Fröhlich