Lanxess Deutschland Gmbh

Bayer Aktiengesellschaft

Arlanxeo Deutschland Gmbh

Bayer Chemicals Ag

Ulrich Feldhues

Horst Berneth

Hermann-Josef Weidenhaupt

Melanie Wiedemeier-Jarad

Heinz Unterberg

Frank Linke

Ronald Göbel

Udo Eckstein

Rolf Brockmann

Uwe Vogt

Dirk Pfuetzenreuter

Udo Herrmann

Melanie Wiedemeier

Josef-Walter Stawitz

Thomas Roick

Siegfried Korte

Stephan Michaelis

Karl-Rudolf Gassen

Meinhard Rolf

Sabine Endert

Irene Moll

Christoph Thiebes

Heike Kloppenburg

Fritz Puchner

Torsten Ziser

Harald Kleinknecht

G&uuml;nter Sackmann

Alicia Le-Sattler

Eckhard Wenderoth

Benjamin Bechem

Joachim K&ouml;nig

Detlef Szeymies

Bernhard Hunke

Cristian Oprisoni

Dietmar Fiedel

Martin Saewe

Matthias K&ouml;cher

Hans-Peter Geiger

Dirk Pfützenreuter

Martin Säwe

Joerg Hagemann

The invention relates to processing additive mixtures comprising at least one polyol, amide and/or carboxylic acid, optionally auxiliaries for crystallization and at least one organic ammonium salt. Said processing additive mixtures allow the optimization of the vulcanization behavior of rubber mixtures and the properties of vulcanizates obtained by said vulcanization.

Processing additive mixtures

The invention relates to substantially diphenylguanidine-free rubber mixtures comprising at least one rubber, one silica-based filler and/or carbon black and short-chain alkyl esters of glycerol, production of these, use and vulcanizates thus obtainable.

Diphenylguanidine-free rubber mixtures containing short-chain alkyl esters of glycerin

Vulcanizable polymer compositions based on backbone-functionalized polydienes having the general formula (I): 

Functionalized polymer composition

The present invention relates to a silica-containing rubber mixture produced from at least one rubber, one sulphur-containing alkoxysilane, one crosslinking agent, one filler, and optionally further rubber auxiliary products and from 0.1 to 15 phr of a polysulphide additive of the formula (I)A-S&#x2014;(S)&#x2014;S&#x2014;Y&#x2014;S&#x2014;(S)&#x2014;S-A&#x2003;&#x2003;(I)where x is 0, 1 or 2,

Rubber blends containing silicic acid and comprising additives containing sulphur

A silica-containing rubber mixture is produced from a rubber, a sulphur-containing alkoxysilane, a crosslinking agent, a silica-containing filler, and 0.1 to 15 parts by weight, based on 100 parts by weight of the rubber, of a silicon-free polysulphide additive of the formula (I)A-S-(S)-S-Bwhere x is 0-4, and A and B are the same or different, are alkyl or aryl, and contain at last one oxygen, which may be in the form of a carboxyl group.

Rubber mixtures containing silicic acid and sulfur-containing additives

A silica-containing rubber mixture includes at least one rubber, a sulphur-containing alkoxysilane, a crosslinking agent, a filler, and optionally further rubber auxiliaries, and the mixture also includes from 0.1 to 15 parts by weight, based on 100 parts by weight of rubber used, of a silicon-free polysulphide additive of the formula (I)A-S&#x2014;(S)&#x2014;S&#x2014;Y&#x2014;S&#x2014;(S)&#x2014;S-A&#x2003;&#x2003;(I)where x is 0, 1 or 2, Y is an optionally substituted or heteroatom-containing aliphatic, cycloaliphatic or aromatic group, and A may include hydroxy, carboxy, or carboxyphenyl groups.

The present invention relates to novel polysulfides mixtures comprising compounds of the formula (I) where n is from 2 to 6, and R is C-C-alkyl, to processes for the production of said polysulfides mixtures, to use of these for the production of rubber matures, and to rubber vulcanizates produced therefrom.

Polysulfide mixtures, method for the production thereof, and use of the polysulfide mixtures in rubber mixtures

The present invention relates to rubber mixtures comprising respectively at least one rubber, one sulfur-containing alkoxysilane, one silicon-based filler, and one &#x3c9;-mercaptocarboxylic ester of polyhydric alcohols.

Siliceous rubber mixtures containing omega-mercaptocarboxylic acid ester of polyvalent alcohols

The invention relates to rubber mixtures comprising at least in each case one nonpolar rubber, carbon black, and short-chain alkyl esters of glycerol, production of these, use, and the vulcanizates thus obtainable.

Rubber mixtures containing short-chain alkyl esters of glycerin

The present invention relates to new crosslinked organosilicon polysulphides, to processes for preparing them and to their use as additives for plastics and/or rubbers.

Cross-linked organosilicon polysulfides

The present invention relates to a silica-containing rubber mixture produced from at least one rubber, one sulphur-containing alkoxysilane, one crosslinking agent, one filler, and optionally further rubber auxiliary products, wherein this mixture comprises from 0.1 to 15 parts by weight, based on 100 parts by weight of rubber used, of a polysulphide additive of the formula (I)A-S&#x2014;(S)&#x2014;S&#x2014;B&#x2003;&#x2003;(I)

The present invention relates to a process for producing rubber mixtures in a mixing process with, for example, a plurality of mixing stages, where these can optionally be divided into a plurality of sub-steps, comprising the mixing of the following components:

Method for producing rubber mixtures

Use of pigments of the formula (I) containing melamine as guest compound and having a dispersion harshness of more than 250 as pigments for color filters for liquid-crystal displays.

Organic pigments for colour filters

Process for preparing metal compounds of an azo compound which conforms in the form of its tautomeric structures to the formula (I) characterized in that the preparation takes place in the presence of seed crystals.

Process for preparing metal compounds of an azo compound in the presence of seed crystals

The use of fluorine-substituted perylenes in color filters for liquid-crystal displays is described.

Growing community of inventors

Bergisch Gladbach, Germany

Ulrich Feldhues