Thermoplastic polyurethanes with high temperature stability and uses thereof
AssigneeLubrizol Advanced Materials, Inc.
InventorsQIANG LAN, NICHOLAS J. GRIMALDI, JOHN M. COX
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Abstract
The instant disclosure related to a thermoplastic polyurethane composition (TPU) comprising the reaction product of an aromatic polyisocyanate and a diol mixture of a first and second diol where the second diol is at least 15 wt % of the diol mixture. The TPU reaction product further has a hard block content of at least 30 wt % based on the total weight of the TPU reaction product. The TPU compositions disclosed herein have high temperature stability and may be used in applications where high temperature stability is required, such as coating wires and cables or in seals and gaskets.
Claims21
A thermoplastic polyurethane composition (TPU) comprising:
- the reaction product of:
- an aromatic polyisocyanate;
- a diol mixture including:
- a first diol selected from one or more of a polycarbonate polyol, a polycaprolactone diol, and a poly(tetrahydrofuran), and
- a second diol selected from one or more of a perfluoropolyether, a hydrogenated polybutadiene diol, and a poly(dimethysiloxane), where the content of the second diol in the diol mixture is at least 15 wt % of the diol mixture;
- and
- a chain extender;
- the reaction product having a hard block content of at least 30 wt %.
(canceled)
Dependencies are inferred from the claim text.