Homogeneous extruded articles made from thermoplastically processable polyurethanes based on polyester diols formed from succinic acid and 1,3-propanediol

摘要

The present invention relates to homogeneous extruded articles made from thermoplastically processable polyurethanes based on polyester diols formed from succinic acid and 1,3-propanediol.

主权项

1. A method comprising preparing a thermoplastically processable polyurethane elastomer with hardness from 65 to 95 Shore A, determined in accordance with ISO 868, obtained from the components consisting of:
a) one or more substantially linear polyesterdiol with functionality from 1.8 to 2.2, b) one or more organic diisocyanate, c) one or more diol with a molar mass from 60 to 350 g/mol, where the molar NCO:OH ratio is set at from 0.9:1 to 1.1:1, and wherein the substantially linear polyesterdiol a) consists of succinic acid and of 1,3-propanediol and has an average molar mass of from 750 to 3500 g/mol.