Polyester fibers
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United States of America Patent
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Sep 20, 1994
Grant Date -
N/A
app pub date -
Apr 20, 1993
filing date -
May 11, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Polyester fiber consisting of an aliphatic polyester having a melt viscosity of 1.0.times.10.sup.2 -1.0.times.10.sup.4 poises at a temperature of 190.degree. C. at a shear rate of 1000 sec.sup.-1 and a melting point of 70-190.degree. C. The polyester fiber of the present invention exhibits biodegradability when buried in the ground. The amount of combustion heat generated on incineration is smaller than that of polyethylene and polypropylene. The polyester fiber of the present invention has excellent physical properties.
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