COPOLYESTER COMPOSITION FOR FORMING A TEMPERATURE-REGULATING COMPONENT OF A COMPOSITE FIBER AND THE COMPOSITE FIBER THUS MADE
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United States of America Patent
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Jan 5, 2017
app pub date -
Jun 10, 2016
filing date -
Jun 30, 2015
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Abstract
A copolyester composition includes a copolyester, an inorganic additive, and an aliphatic organic additive. The copolyester includes a hard segment including polybutylene terephthalate, and a soft segment including polyethylene gylcol and having a weight average molecular weight ranging from 2500 to 10000. The aliphatic organic additive has a melting point between a crystallization temperature of the hard segment and a melting point of the soft segment, and has a molecular weight not larger than 1000. The inorganic additive is in an amount ranging from 0.02 to 1.00 part by weight and the aliphatic organic additive is in an amount ranging from 0.02 to 1.00 part by weight.
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