Bayer Aktiengesellschaft

Lanxess Deutschland Gmbh

Bayeraktiengesellschaft

Hartmuth Buding

Joachim Thormer

Zsolt Szentivanyi

Hermann-Josef Weidenhaupt

Paul Fiedler

Rudolf Braden

Heinrich Konigshofen

Karl-Heinz Ott

Josef Hahn

Herbert Eichenauer

Rudolf Casper

Winfried Jeske

Thomas Himmler

Marco Runk

Uwe Zettl

Friedrich Leibbrandt

Christian Lindner

Thomas Eckel

Werner Obrecht

Peter Panster

Werner Nouvertne

Hans-Eberhard Braese

Stefan Wieland

Josef Merten

Rudiger Musch

Joachim Doring

Wilfried Nolte

Wolfgang Stix

Thomas Kleiner

Johann Hohn

Paul-Christian Fiedler

Nicole Häp

Petra Pallogh

Nesibe Ucal

Andreas Mihalyi

The invention relates to a process for preparing dithiols derivatized with dithiocarbamic acids, in which the derivatized dithiols are obtained in high yield and purity.

Preparation of derivatized dithiols

The present invention relates to vulcanizing agent containing metal alkanedithiols for unsaturated rubbers.

Use of metal alkanedithiols as crosslinking agents for unsaturated rubbers

The invention relates to novel organic sulphur-nitrogen compounds, their preparation, and use as vulcanizing agents for unsaturated rubbers and mixtures of these.

Vulcanizing agents based on organic sulphur-nitrogen compounds for unsaturated rubbers and mixtures of these

The invention relates to a novel process for preparing salts of S-alkyl esters of thiosulphuric acid by reacting organic dihalides with thiosulphates in water.

Preparation of thiosulphuric acid derivatives

This invention relates to vulcanizable diene rubber compounds with a high capacity for the addition of sulfur to be varied while processing safety is maintained, for the production of improved rubber moldings, particularly tire components.

Diene rubber compounds for improved rubber moldings

The invention relates to a simple process for the preparation of polymeric sulfur compounds with polythiocyclopentanediyl structural elements which are used as vulcanizing agents for diene rubbers.

Process for the preparation of polymeric sulfur compounds

This invention relates to vulcanizable rubber compounds based on styrene-butadiene rubber, which contain a special vulcanizing system, which are reinforced with silica and which contain a filler activator, for tire treads which exhibit improved abrasion-resistance.

Vulcanizable rubber compounds containing styrene-butadiene and butadiene rubbers

The invention relates to polymeric sulfur compounds, their preparation and their use as vulcanizing agcnts for unsaturated rubber mixtures.

Vulcanizing agents for unsaturated rubber mixtures

This invention relates to moulded, non-dusting, non-caking, free-flowing masticating agents based on 2,2'-dibenzamidodiphenyl disulphide and mixtures of saturated fatty acids having an iodine number &lt;25, a solidification point in the range from 50.degree. to 68.degree. C. and an acid number of 179 to 215. The masticating agents according to the invention are employed for reducing the viscosity of rubbers containing double bonds, and are normally used in amounts of 0.01 to 3 parts by weight, based on 100 parts by weight of rubber.

Moulded, non-caking masticating agents

This invention relates to shaped, non-dusting, non-sticking, free-flowing masticating agents based on 2,2'-dibenzoamidodiphenyl disulphide and paraffins having a solidification point in the range from 50.degree. to 85.degree. C., a needle penetration of 8 to 25 in 1/10 mm, a viscosity of 2 to 10 mm.sup.2 /s. The masticating agents according to the invention are used to reduce the viscosity of rubbers containing double bonds and are customarily used in quantities of 0.01 to 3 parts by weight.

Shaped masticating agents containing paraffin

Rhodium and ruthenium catalysts can be recovered from solutions of hydrogenated nitrile rubber by addition onto organosiloxane-based absorbers.

Recovery of hydrogenation catalysts from solutions of hydrogenated

The invention relates to thermoplastic molding compounds of 70 to 99.5% by weight thermoplastic polyamides and 30 to 0.5% by weight hydrogenated nitrile rubber and 0 to 29.5% by weight thermoplastic resin components and, optionally, standard additives in typical quantities. These thermoplastic molding compounds show high strength values, very good moldability and, above all, high weathering resistance.

Thermoplastic molding compounds of polyamide and hydrogenated nitrile

Thermoplastic molding compositions of A) 70 to 99.5% by weight of a thermoplastic aromatic polyether sulfone or mixtures of several thermoplastic polyether sulfones and B) 30 to 0.5% by weight of a hydrogenated nitrile rubber.

Thermoplastic molding compositions of aromatic polyether sulfone and

Mixtures of polychloroprene and hydrogenated nitrile rubber give vulcanizates combining high modulus with a high dynamic stress absorption capacity.

Rubber compounds of polychloroprene and hydrogenated nitrile rubber

Hydrogenation products of olefinically unsaturated polymers having nitrile groups prepared in the presence of ruthenium catalysts in a solvent comprising a low-molecular ketone and a secondary or tertiary C.sub.3 -C.sub.6 -alcohol by hydrogenation, can be processed to vulcanizates with improved compression set values.

Growing community of inventors

Dormagen, Germany

Hartmuth Buding