Glass fiber filled polyester polymers
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United States of America Patent
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Jul 14, 1998
Grant Date -
N/A
app pub date -
May 23, 1997
filing date -
May 23, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polyester polymer containing micro glass fibers having an aspect ratio of greater than 1000, preferably from about 2000 to about 5000. Those micro glass fibers having these aspect ratios, preferably with mean fiber diameters of 1 microns or less, act as excellent nucleating agents to promote crystallization of the polymer melt during its cooling phase, improve the rheological behavior of the melt, reduce the crystalline half time during cooling phases, and are acceptable in polyester molded or thermoformed products which come into contact with food or beverage.
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