Cellularized polyesters
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United States of America Patent
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Jun 24, 1997
Issued Date -
N/A
app pub date -
Dec 14, 1995
filing date -
Oct 22, 1993
priority date (Note) -
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Abstract
This invention is a composition, a kit to prepare the composition, cellular sheet made from the composition and thermoformed articles made from the sheet, in which the composition comprises polyethylene terephthalate, sufficient inert gas to give a sheet density of 0.4 to 1.25 gm/cc, a polytetrafluoroethylene nucleating agent and optionally a polyolefin additive and a heat stabilizer.
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