Degussa Aktiengesellschaft

Evonik Degussa Gmbh

Degussa - Huls Ag

Gerold Schmidt

Karl Meier

Gunter Turk

Mustafa Siray

Uwe Schachtely

Dieter Kuhn

Thomas Welker

Uwe Kinzlinger

Guido Scharf

Joerg Roeder

Thermoplastic elastomer mixture which comprises at least one thermoplastic elastomer TPE, with the exception of a thermoplastic polyurethane TPU, and at least one filler from the group of precipitated silica, or precipitated silicate or carbon black. The thermoplastic elastomer mixtures are produced by, in a first step, mixing at least one filler selected from the group of precipitated silica, or precipitated silicate or carbon black, and at least one thermoplastic to give a masterbatch and, in a second step, mixing the masterbatch with at least one thermoplastic elastomer, with the exception of a thermoplastic polyurethane TPU. The thermoplastic elastomer mixture can be used in injection-molded items.

Thermoplastic elastomer mixtures

A process for preparing microporous separating elements for batteries by intensive mixing of a high molecular weight polyethylene with a precipitated silica having specific chemical and physical characteristics, a process liquid and a stabilizer to form a powder mixture, which is extruded to form a film, from which the process liquid is removed, thereby leaving the desired microporous separating elements which are recovered.

Precipitated silica

Precipitated silica with the following physical-chemical characteristics:

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Rodenbach, Germany

Gerold Schmidt