Carl Freudenberg Kg

Rhein Chemie Rheinau Gmbh

Unimatec Chemicals Europe Gmbh & Co. Kg

Hans-Martin Issel

Florian Fischer

Reinhard Uphus

Harald Kleinknecht

Christoph L Klingshirn

Ruth Bieringer

Willi Grieshaber

Akihiro Naraki

Anno Borkowsky

Andreas Schröder

Dirk Ecknig

Martin Säwe

Andreas SCHRÖDER

It is the aim to indicate a thermoplastic elastomer composition which is characterized by particularly good temperature stability from &#x2212;40&#xb0; C. to +150&#xb0; C. and a particularly good oil resistance, with particularly good physical properties, in particular with a high elongation at break, and which is suitable for use in moldings, injection moldings, extrudates and/or blow moldings. In addition, the thermoplastic elastomer composition according to the invention comprises a mixture of acrylate rubber and polyurethane.

Thermoplastic elastomer composition and use thereof

The invention relates to a process and an apparatus for the preparation of a crosslinkable rubber mixture for vehicle tires, lines, drive belts and other industrial rubber articles, which can be carried out at least semicontinuously. The present invention is based on the discovery that the experiments known from the prior art to carry out the batchwise process usually used at least partly continuously have failed in particular because of the problem that the crosslinking agents have to be mixed rapidly and homogeneously with the base mixture, also referred to as rubber base mixture, without the mixture consisting of the base mixture and the crosslinking agents heating up too strongly. According to the invention, attention was therefore focussed on reliably mixing the base mixture homogeneously with the crosslinking agents and minimizing the mixing time. A first measure for achieving the desired aim consists in first mixing the crosslinking agents with one another before they are mixed with the base mixture. The mixture of crosslinking agents is in particular first packed in a container which is used for feeding the crosslinking agents into a base mixture.

Process and apparatus for the preparation of crosslinkable rubber mixtures

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Weinheim, Germany

Hans-Martin Issel