Basf Se Corporation

Lutz-Peter Hoenemann

Elmar Poeselt

Peter Gutmann

Uwe Keppeler

Hye Jin Park

Disclosed herein are expanded thermoplastic polyurethane beads polymerized from an isocyanate, an isocyanate-reactive compound having a molecular weight between 500 and 10 000 g/mol and a chain extender, wherein customary adjuvants may be additionally present, and the thermoplastic polyurethane has a hard phase fraction ranging from 0.1 to 0.95 and the hard phase fraction is defined by: where Mrepresents a molar mass of chain extender x in g/mol, mrepresents a mass of chain extender x in g, Mrepresents a molar mass of isocyanate in g/mol, mrepresents a total mass of all starting materials without adjuvants, and k represents a number of chain extenders. Also disclosed herein are processes for producing expanded thermoplastic polyurethanes and processes for producing molded parts therefrom.

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Lemfoerde, Germany

Lutz-Peter Hoenemann