Bayer Aktiengesellschaft

J&uuml;rgen Trimbach

Thomas Scholl

Ulrich Eisele

Stefan Kelbch

Peter Wendling

Heike Windisch

Peter Schertl

R&uuml;diger Engehausen

Ellen Giebeler

The invention relates to rubber compounds that contain rubbers polymerized in solution with a secondary hydroxyl group content of 0.1 to 5 wt.- % that are not more than 4 carbon atoms away from the respective side chain end. The invention also relates to mixtures thereof with fillers, optionally additional rubbers and rubber auxiliary agents and the vulcanized rubbers produced thereof. The inventive rubber compounds are useful for producing highly reinforced, abrasion-resistant molded bodies, especially for producing tires that are characterized by excellent non-skid properties on wet surfaces.

Rubber compositions containing hydroxyl groups

The present invention relates to rubber mixtures containing diene rubber with a concentration of primary hydroxyl groups of 0.1 to 2 wt. % and a glass transition temperature of &minus;120&deg; to &minus;50&deg; C. and their mixtures with fillers, optionally further rubbers and rubber auxiliary substances and vulcanisates prepared therefrom. Rubber mixtures according to the invention are suitable for producing highly reinforced, abrasion-resistant moulded items, in particular for producing tires treads which have a particularly high resistance to wet skidding.

Hydroxyl group-containing diene rubber

The present invention relates to rubbers based on diolefins with a particular lateral polyether group content, mixtures thereof with fillers and the use of said rubbers and mixtures for the preparation of rubber vulcanizates with improved tear propagation resistance and favorable dynamic damping. More particularly, the rubbers according to the present invention are suitable for the manufacture of highly reinforced rubber molded articles, particularly for tires of vehicles, which are used both in road traffic and off-road.

Rubbers with polyether side groups

The present invention concerns a method for the copolymerization of conjugated diolefins and vinyl-aromatic monomers in the presence of rare-earth catalysts and the use of the copolymers in rubber mixtures for tire applications.

Method for the copolymerization of conjugated diolefins (dienes) and vinyl-aromatic monomers with rare-earth catalysts and use of the copolymers in rubber mixtures for tire applications

This invention is directed to rubber compounds which amongst other constituents contain fillers and contain solution rubbers which contain carboxyl groups, are particularly suitable for the production of highly reinforced rubber moldings, particularly for the production of tires which exhibit particularly high wet slip resistance and abrasion-resistance.

Rubber compounds containing solution rubbers which contain carboxyl groups

The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5 wt. % of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.

Solution rubbers containing hydroxyl groups

The present invention relates to a process for the production of rubber mixtures containing 1 to 500 parts by weight of one or more water-repellent fillers with a methanol wettability of &gE;5 wt. % to 100 parts by weight of rubber, characterized in that said water-repellent fillers are blended with one or more rubber latices and the mixture is then processes jointly, and also to rubber mixtures that can be produced with this process. The present invention relates furthermore to the use of the rubber mixtures produced by the process according to the invention for the production of tires, treads or molded articles of all kinds.

Emulsion rubber mixtures containing hydrophobic-rendered oxide or silicate type fillers and their use for producing tires

The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5wt.% of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.

Growing community of inventors

Kö'ln, Germany

Jürgen Trimbach

Growing community of inventors

Kö'ln, Germany

J&uuml;rgen Trimbach

Jürgen Trimbach