Basf Aktiengesellschaft

Knud Faehndrich

Dietrich Lausberg

Klaus Muehlbach

Rolf Steinberger

Gerhard Zeitler

Uwe Blumenstein

Gerhard Bittner

Harald Schulz

Hans M Rombrecht

Thermoplastic molding materials of improved green strength and impact toughness at low temperatures which are useful for producing injection moldings and are based on a TPU copolymer mixture, contain, based on 100 parts by weight,

Thermoplastic moldings materials of improved green strength and

Impact modified thermoplastic polyurethane-polyester molding materials containing, based on 100 parts by weight of (A) to (C),

Impact modified thermoplastic polyurethane-polyester molding materials

Antistatic and/or electrically conductive thermoplastic polyurethanes contain carbon black whose surface area determined by the BET method is from 600 to 1200 m.sup.2 /g, have a dibutylphthalate absorption number of 300 to 450 cm.sup.3 /100 g, a pour density of less than 250 kg/m.sup.3, and an average particle size less than 50 nm. Incorporation of the carbon black into the thermoplastic polyurethane produced by the continuous sheet method takes place at temperatures under the primary melt peak for the crystalline rigid segments, measured by means of differential calorimetry, preferably in an extruder. The products are suitable for preparing films for flat heating elements, antistatic hoses, cables, and profiles.

Antistatic or electrically conductive thermoplastic polyurethanes:

Growing community of inventors

Diepholz, Germany

Knud Faehndrich