THERMOPLASTIC POLYURETHANES WITH REDUCED TACKINESS
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United States of America Patent
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Sep 5, 2019
app pub date -
Jun 15, 2017
filing date -
Jun 27, 2016
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Abstract
The present invention relates to novel thermoplastic polyurethane (TPU) compositions that have crystalline chain ends. The TPU compositions of the invention can provide improved resiliency, lower surface free energy, and/or reduced stickiness, while maintaining other desirable physical properties. The TPU compositions of the present invention are made from the reaction product of an aliphatic polyisocyanate, a polycaprolactone polyester polyol, an optional chain extender component, and a chain terminator component, which comprises a short chain crystalline compound containing a single functional group capable of terminating the chain of the thermoplastic polyurethane.
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