Thermoplastic Polyurethane From Low Free Monomer Prepolymer
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United States of America Patent
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Issued Date -
Nov 20, 2014
app pub date -
Apr 21, 2014
filing date -
May 15, 2013
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Abstract
Thermoplastic polyurethane (TPU) made using low free isocyanate monomer (LF) prepolymer, for example a prepolymer based on p-phenylene diisocyanate (PPDI) with low free isocyanate content, possess unique performance features including exceptional tear strength, low compression set, and an exceptional overall balance of physical properties including high temperature mechanical strength.
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