Bayer Aktiengesellschaft

Wolfgang Wieder

Josef Witte

Jurgen Hocker

Rolf Dhein

Werner Obrecht

Rudolf Merten

Hans-Heinrich Moretto

Helmut Steinberger

Stephen D Pask

Dieter Kuhlmann

Wolfgang Nentwig

Christian Ohm

Karl-Heinz Schabel

The production of diene rubbers polymerized by means of Nd catalysts and having reduced cold flow and low intrinsic odor is effected by the polymerization of diolefines adiabatically at temperatures of -20.degree. to 150.degree. C. in the presence of inert organic solvents and in the presence of metallo-organic mixed catalysts based on neodymium carboxylate, by subsequently depressurizing the reaction mixture obtained in this manner by reducing the pressure, and by treating the reaction mixture thereafter with disulphur dichloride, sulphur dichloride and/or thionyl chloride.

Process for producing diene rubbers polymerized by means of Nd catalysts

The present invention relates to thermoplastically processible polymer materials with good mechanical properties and high flame resistance.

Flame resistant, halogen-free thermoplastic polymer compositions

Process for the production of a suspension of polyacetylene in the form of particles having a diameter of from 0.01 to 1 mm and having a great number of fibrous appendices comprising introducing acetylene in an organic suspending agent under constant stirring, in the presence of an aluminum-containing organometallic mixed catalyst in an amount corresponding to 10 to 100 m moles aluminium per liter suspending agent, at temperatures of from -100.degree. to 80.degree. C., until a maximum of 10 g, preferably 1 to 3 g of polyacetylene per liter of suspending agent have been formed.

Foils of polyacetylene

Process for the production of polyacetylene, wherein acetylene is polymerized in an organic diluent with the aid of an organometallic mixed catalyst based on a vanadium compound of the formula ##STR1## wherein R.sup.1 represents halogen (chlorine),

Process for producing polyacetylene

Ethylene-butadiene-isoprene terpolymers consisting of more than 80 mol % of alternating ethylene-diene units and in which more than 95 mol % of the diene units built into the polymer are in the 1,4-configuration.

Terpolymers of ethylene, butadiene and isoprene and a process for their

Catalyst, preparation thereof and use thereof in the preparation of

The invention refers to Isoprene-ethylene copolymers having alternating monomer units in which the proportion of recurring

Alternating isoprene-ethylene copolymers and a process for the

Graft polymers having improved low temperature characteristics of optionally partially or completely saponified vinyl ester homopolymers or copolymers as graft substrates and grafted siloxane units.

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Leverkusen, Germany

Wolfgang Wieder