Bayer Aktiengesellschaft

Jochen Schnetger

Manfred Beck

Volker Serini

Gottfried Pampus

Leo Morbitzer

Wilhelm Gobel

Joachim Thormer

Gert Humme

Gunter Marwede

Gerhard Giersiepen

Hans Loske

Rudolf Clamroth

Thermoplastic rubber blends of polycarbonates and block copolymers

Branched polymers being producible by reacting an anion of a branched aromatic vinyl/diene block polymer with an aromatic polycarbonate or with a mixture of aromatic polycarbonates wherein at least 50% of the linear chains of the polycarbonate or mixture of polycarbonates consist of structural units corresponding to the Formula (1) ##STR1## in which X represents a C.sub.1 -C.sub.5 -alkylene or C.sub.1 -C.sub.5 -alkylidene radical.

Branched segment polymers

A freeflowing rubber mixture which is stable against coalescence and cohesion comprising a vulcanizable rubber in powder form and a minor amount of an acrylonitrile polymer as a separating agent.

Separating agent for rubber powders

For the short-duration determination of the flowability of rubber powder after storage, the rubber powder is poured into a cylindrical container in which is immersed a resistance element. This element displays an analogue value via a torque measuring device when there is relative rotation between the container and the resistance element.

Apparatus for short-duration tests for determining the flowability of

A segment polymer comprising units derived from a linear living aromatic vinyl-diene block polymer anion and from an aromatic polycarbonate in which at least 50% of the polycarbonate consist of structural units represented by the following formula (I): ##STR1## wherein X denotes C.sub.1 -C.sup.5 alkylene or alkylidene, AND WHICH HAS THERMOPLASTIC AND ELASTOMERIC PROPERTIES.

Segment polymers derived from aromatic vinyl-diene block polymer anion

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.

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Odenthal-Hoeffe, Germany

Jochen Schnetger