Polyurethane elastomeric fiber and process for making the fiber
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United States of America Patent
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Jun 28, 2005
Grant Date -
Oct 31, 2002
app pub date -
Feb 23, 2001
filing date -
Feb 23, 2001
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Abstract
This invention is comprised of a thermoplastic polyurethane elastomer fiber obtained by melt spinning a polyurethane having a rebound of 60% or greater and a isocyanate-terminated polyether or polyester additive. The elastic fibers have low shrinkage, high heat resistance, low tensile set, and high elongation.
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