Orion Engineered Carbons Gmbh

Evonik Degussa Gmbh

Orion Engineered Carbons IP Gmbh & Co. Kg

Other

Degussa Aktiengesellschaft

Degussa - Huls Ag

Orion Engineered Carbons Gbmh

Compagnie Generale Des Etablissements Michelin

Evonik Carbon Black Gmbh

Werner Niedermeier

Conny Vogler

Burkhard Freund

Joachim Fröhlich

Karl Vogel

Arndt-Peter Schinkel

Silke Teike

Paul Dieter Messer

Thomas Pelster

Hauke Westenberg

Florian Diehl

Anke Blume

Uwe Schachtely

Oleg Stenzel

Christian Goetz

Andre Wehmeier

Ralph Hofmann

Perrine Vallat

Thomas Lüthge

Bernhard Schwaiger

Bernd Knackfuss

Rainer Friehmelt

Marinus Haddeman

Daniel Vorreiter

Dirk Rechenbach

Stéphane Badaire

Egon Fanghänel

Joachim Froehlich

Weicheng Wu

Helmut Kriesch

Christian GÖTZ

Egon Prof Fanghänel

The present disclosure provides a functionalized carbon black obtained by treating an oxidized carbon black with a sulfur-containing primary or secondary amine or a salt thereof. The disclosure also relates to a process for preparing such functionalized carbon black. Furthermore, the present disclosure relates a vulcanizable rubber composition including (i) a vulcanizable rubber component, and (ii) an oxidized carbon black and (iii) a sulfur-containing primary or secondary amine or a salt thereof, or a functionalized carbon black formed from these components. The disclosure also concerns an article made from the vulcanizable rubber composition. The functionalized carbon blacks disclosed herein are particularly useful for obtaining rubber compounds with low hysteresis and enhanced abrasion resistance, e.g. for the production of energy-saving tires.

Functionalized carbon black, preparation thereof and use in vulcanizable rubber compositions

The present disclosure provides polymeric compositions with balanced electrical and mechanical properties exhibiting reduced hysteresis comprising an electrically insulating polymeric material, a first carbon black material having a statistical thickness surface area (STSA) of below 70 m/g and an oil absorption number (OAN) in the range from 70 to 150 mL/100 g, and a second carbon black material having a statistical thickness surface area (STSA) of at least 100 m/g and an oil absorption number (OAN) of at least 150 mL/100 g, wherein both carbon black materials are included in an amount below its respective percolation threshold concentration, with the total amount of the first carbon black material and the second carbon black material being sufficient to render the polymeric composition antistatic or electrically conductive. The polymeric compositions exhibit balanced electrical and mechanical properties and a reduced hysteresis. The disclosure also relates to a process for preparing such antistatic or electrically conductive polymeric compositions and articles produced from such compositions.

Antistatic or electrically conductive polymeric composition with reduced hysteresis

Suggested is a carbon black composition showing a narrow Aggregate Size Distribution (ASD) characterized by a &#x394;D/Dvalue of about 0.58 to about 0.65 and a Relative Span (D&#x2212;D)/Dof about 0.5 to about 0.8, which is obtainable by means of a modified furnace reactor. The composition shows superior additive performance and allows producing e.g. bus or truck tires with improved wear resistance and reinforcement.

Carbon black compositions

The present invention relates to a pelleted acetylene black having a mass strength measured according to ASTM D 1937-10 of 200 N at most and an average pellet size measured according to ASTM D 1511-10 of at least 1.0 mm, to the use of any of said pelleted acetylene blacks to produce a compound comprising a resin or polymer or rubber matrix and the acetylene black dispersed in said matrix and to a method for producing such a compound.

Pelleted acetylene black

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

The present invention relates to precipitated silicic acids, which have a particularly narrow particle size distribution in combination with a special pore size distribution, to a method for the production thereof, and to the use thereof as a filler for rubber mixtures.

Precipitated silicas as a reinforcing filler for elastomer mixtures

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

Inversion carbon blacks and a method for their manufacture are disclosed. The inversion carbon blacks have a lower rolling resistance with identical or improved wet skid behavior. The particle size distribution contains a smaller proportion of particles with large diameters. This leads to an improved abrasion behavior of rubber compounds which were prepared using these carbon blacks. The inversion carbon blacks can be manufactured in conventional carbon black reactors by controlling the combustion in the combustion chamber in such a manner that carbon black nuclei form, which are immediately brought into contact with the carbon black raw material. The carbon blacks present a lower proportion of larger particles if the additions of combustion air and carbon black raw material are increased in an appropriate manner.

Inversion carbon blacks and method for their manufacture

Inversion carbon blacks and a method for their manufacture and disclosed. The inversion carbon blacks have a smaller rolling resistance with identical or improved wet sliding behavior. The particle size distribution contains a smaller proportion of particles with large diameters. This leads to an improved abrasion behavior of rubber compounds which were prepared using these carbon blacks. The inversion carbon blacks can be manufactured in conventional carbon black reactors by controlling the combustion in the combustion chamber in such a manner that carbon black nuclei form, which are immediately brought into contact with the carbon black raw material. The carbon blacks present a lower proportion of larger particles if the additions of combustion air and carbon black raw material are increased in an appropriate manner.

Growing community of inventors

Brühl, Germany

Werner Niedermeier