Bayer Aktiengesellschaft

Lanxess Corporation

Wilfried Braubach

Thomas Knauf

Michael Gr&uuml;n

Werner Obrecht

Thomas Scholl

Rui Resendes

Axel M&uuml;ller

Ellen Giebeler

Michael Grün

Mabel Graf

The present invention provides a composition comprising at least one halobutyl elastomer, at least one mineral filler and at least one protected thiol modifier. In another aspect the present invention provides a process which comprises mixing a halobutyl elastomer with at least one mineral filler, in the presence of at least one protected thiol modifier, and curing the resulting filled halobutyl elastomer.

Silica-filled elastomeric compounds

The present invention relates to polymers which are modified by functional end groups and are based on conjugated dienes or on conjugated dienes and vinylaromatic compounds, a process for their preparation and their use for the production of rubber shaped articles of all types, in particular for the production of tires and tire components, such as tire treads.

Polymers modified by functional groups

The present invention relates to polymers that are modified along the polymer chain and are based on conjugated dienes or conjugated dienes and vinyl-aromatic compounds having a content of vinyl-aromatic compounds of up to 60 wt. %, a content of cis-position double bonds of &gE;92%, a mean molecular weight of 50,000 to 1,500,000 g/mole and a gel content of &lE;5%. The polymers according to the invention can be used for the production of all types of molded articles, wherein in particular their technical and physical properties are improved compared with the prior art.

Modified polymers with a high proportion of cis-position double bonds

The invention provides modifiers for the anionic polymerization of conjugated dienes or of conjugated dienes with vinylaromatic compounds, wherein the modifiers are specific aminoethers.

Modifiers for anionic polymerization

The present invention relates to filled rubber mixes made from polyether/diolefin rubbers. The rubber mixes according to the present invention are suitable for the production of highly reinforced, abrasion-resistant moldings, in particular for the production of tires which exhibit low rolling resistance and elevated wet skid resistance.

Rubber mixes containing polyether/diolefin rubbers and use thereof in particular for the production of tires with low rolling resistance

The present invention comprises a catalyst based on rare earth metal compounds which consists of a rare earth metal compound, an organic aluminum compound and a trihalosilane, of a process for the production thereof and of the use of the catalyst for polymerizing conjugated dienes to form high molecular weight polybutadienes.

Growing community of inventors

Solingen, Germany

Wilfried Braubach