Elastic fabric comprising a polyurethane elastic fiber made from a polyether based polyol
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United States of America Patent
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Feb 14, 2017
Grant Date -
Mar 27, 2014
app pub date -
May 24, 2012
filing date -
May 27, 2011
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Abstract
To provide elastic fabric that has comfortable wear and fit even in thin and light fabric by using a high-powered polyurethane elastic fiber that has at least 1.5 times the active force and recovery per unit fineness at the time of 100 to 200% elongation compared to conventional polyurethane elastic fiber. Resolution means an elastic fabric comprising a polyurethane elastic fiber made of a polyol, with a molecular weight between 450 and 1600 with a ratio of weight average molecular weight to number average molecular weight of at least 1.8, an organic diisocyanate compound, and a diamine compound.
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