Patent ID: 8822624

Claim:
A thermoplastic polyurethane, obtained by a process comprising reacting at least one aliphatic, organic diisocyanate comprising at least 80% by weight of hexamethylene diisocyanate and up to 20% by weight of other aliphatic, organic diisocyanates, as component A, at least one compound which is reactive toward component A comprising at least one polyesterdiol of a dicarboxylic acid and at least one C 2-10 glycol and which has a weight-average molar mass of from 500 to 10 000 g/mol, as component B, a mixture composed of alkanediols as chain extenders, comprising from 65-78 mol % of 1,6-hexanediol as main chain extender C1 and from 22-35 mol % of 1,3-propanediol as co-chain extender C2, as component C, optionally at least one catalyst, as component D, and optionally a conventional additive as component E, wherein a molded sheet of said thermoplastic polyurethane does not display deposits after storage for 120 h at an oven temperature of 48° C. and 100% relative humidity.