Bayer Aktiengesellschaft

Gunter Marwede

Josef Witte

Gerd Sylvester

Manfred Beck

Eberhard Muller

Gottfried Pampus

Theo Kempermann

Jochen Schnetger

Rainer Fritz

Solution polymerization of conjugated dienes

Catalyst and its preparation and use for the solution polymerization of

A process for the production of strictly alternating copolymers of trans-1,4-butadiene and propylene units by the solution copolymerization of butadiene and propylene with vanadium-containing organometallic mixed catalysts, wherein vanadyl dialkoxy halides of which the alkoxy groups are branched in the 2-position to the oxygen atom are used as the vanadium compounds.

Process for the production of butadiene-propylene copolymers

Uranium-containing mixed catalysts containing uranium in the formal oxidation state +4 as uranium salts of carboxylic acids, a Lewis acid, and an organometallic aluminum compound are prepared and can be used for stereospecific polymerization of diolefins or mixtures of diolefins and monoolefins.

Uranium-containing mixed catalysts and their use for the polymerization

A mixture of polyolefin resins and partially crosslinked ethylene-propylene sequential polymer and/or ethylene-propylene-diene sequential polymer representing a so-called thermoplastic rubber having improved properties.

Thermoplastic rubber compositions comprising polyolefin and sequential

Polysegment copolymers with thermoelastomeric properties are obtained by a process, wherein block polymers of the idealised form S.sub.x -B.sub.y, in which S represents structural units derived from styrene, B represents structural units derived from a conjugated diene and x and y are integers, are reacted with sulphur chlorides. The products according to the invention are suitable for the production of shoe soles, hoses, industrial rubber articles and particularly hot melt adhesives.

Polysegment copolymers

A vulcanization system for natural and/or synthetic rubber containing light fillers comprising certain silanes, thiazoles, guanidines, and thiurams. By using this system the extremely unpleasant odor of silanes when used alone can be substantially diminished without affecting the properties of the vulcanizate.

Vulcanization systems for rubber mixtures with light fillers

Process for the homopolymerisation and copolymerisation of conjugated dienes in inert organic solvents on alkali metal amides as catalysts in the presence of a solvating agent for the amide.

Growing community of inventors

Cologne, Germany

Gunter Marwede