Biaxially oriented polystyrene film
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United States of America Patent
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Jul 1, 1997
Grant Date -
N/A
app pub date -
Aug 23, 1994
filing date -
Aug 23, 1994
priority date (Note) -
Expired
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Abstract
The present invention provides film methods of using and methods of preparing a biaxially oriented polystyrene composition. The compositions are useful in that they are clear and have improved room and low temperature impact strength. The compositions include from about 0.1 to about 1.4 weight percent rubber particles, based upon the total weight of the composition. The average diameters of the rubber particles are from about 0.1 micron to about 10 microns.
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