Thermoplastic polyurethane containing silane groups

Abstract

The invention relates to a thermoplastic polyurethane comprising the following structural unit: R2—CO—NH—R—Si(R1)3-x(OR1)x where: R is an aliphatic, araliphatic, or aromatic organic radical having from 1 to 20 hydrocarbon atoms, R1 is an alkyl radical or aryl radical having from 1 to 10 carbon atoms, R2 is —NR3—CO—R4 or —O—R5—O—, R3 is a section of the polymer chain of the thermoplastic polyurethane, in particular a radical which derives from the diisocyanate used to prepare the thermoplastic polyurethane, R4 is a section of the polymer chain of the thermoplastic polyurethane, in particular a radical which derives from the following compounds used to prepare the thermoplastic polyurethane: compounds (b) reactive toward isocyanates, or from the chain extender (c), R5 is an alkylene radical having from 2 to 8 carbon atoms, preferably from 3 to 6 carbon atoms, and x is 1, 2 or 3.

Dependencies are inferred from the claim text.