Thermoplastic polyurethane

A polyurethane, obtained by reacting at least components (i) to (iii):

• (i) a polyisocyanate composition;
• (ii) a polyol composition, comprising
• (ii.1) a polyester diol or polyether diol having a number-average molecular weight in a range from 500 to 3000 g/mol, and
• (ii.2) a polysiloxane of formula I:
• where n is an integer in a range from 1 to 250, A and B are independently selected from the group of the C1-C20-alkyl groups;
• where X1 of the polysiloxane as per (ii.2) is a (CH2—CH2—O)m group, a (CH2—CH2—CH2—O)m group, or a (CH2—CHCH3—O)m group, X2 of the polysiloxane as per (ii.2) is a (CH2—CHCH3—O)m group, an (O—CH2—CH2)m group, or an (O—CH2—CH2—CH2)m group, where m for X1 and X2 in each case independently is an integer in a range from 2 to 20;
• and Y1 and Y2 are both a hydroxyl group;
• wherein the polysiloxane as per (ii.2) is present in a proportion in a range from 5% to 20% by weight, based on a total weight of all of components (ii.1) and (ii.2);
• and
• (iii) a chain extender composition.