Thermoformable composite sheet
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United States of America Patent
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-
Dec 24, 1991
Grant Date -
N/A
app pub date -
Feb 20, 1990
filing date -
Feb 20, 1990
priority date (Note) -
Expired
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Abstract
An improved thermoformable composite sheet comprises a layer of thermoplastic polymer and a lightweight stitchbonded nonwoven elastic fabric having a conformability at 180.degree. C. in the range of 4 to 9. The sheet provides articles thermoformed therefrom with improved wall thickness uniformity.
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