Flexible polyester foams
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 25, 2000
Grant Date -
N/A
app pub date -
Dec 9, 1998
filing date -
Dec 17, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A foamed cellular material which can be obtained from foamed aromatic polyester resins with a bulk density of 50 to 700 kg/m3 by heating in vacuum to temperatures which are higher than the Tg of the material and lower than its melting point. The foamed material, generally in the form of a sheet or panel, has high-level characteristics in terms of flexibility and dimensional thermostability depending on the degree of crystallinity after the vacuum treatment.
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