The present invention relates to a thermoplastic polyurethane obtainable or obtained by the conversion of at least a polyisocyanate composition, propane-1,3-diol as chain extender and a polyol composition, wherein no further chain extender is used aside from propane-1,3-diol, to a process for preparing such a thermoplastic polyurethane, and to the use of such a polyurethane for production of injection molded products, extrusion products, films and shaped bodies.

An injection-moldable composite pellet includes a matrix containing a polymer material and at least one fiber embedded within the matrix. The at least one fiber includes a first spiral shape and a composition different from that of the matrix. The first spiral shape comprises at least one loop spiraling around an axis.

Disclosed herein is a process for recycling propylene-ethylene copolymers to obtain polymers having good optical and mechanical properties, and good processability. The process comprises polymerizing propylene and ethylene under dynamic conditions; collecting the resulting copolymer powders as a mixture having an MFR.sub.2 ranging from 1.5 to 80.0 g/10 min and an ethylene content from 1.0 to 4.0 wt. %; compounding the mixture in the presence of a radical initiator and a clarifying agent; and extruding the mixture into pellets. The pellets have an MFR.sub.2 ranging from 20 to 120 g/10 min; a ratio of MFR.sub.2 pellets/MFR.sub.2 powder>1; an ethylene content ranging from 1.0 to 4.0 wt %; a crystallization temperature ranging from 100 to 125 C.; and a flexural modulus of 850 MPa or more. The disclosure also relates to the propylene-ethylene copolymer pellets thus obtained; articles made from the pellets; and the use of the pellets in injection molding applications.