POLYCARBONATE RESIN SHEET
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United States of America Patent
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Issued Date -
Apr 28, 2011
app pub date -
Jun 29, 2009
filing date -
Jul 2, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A polycarbonate resin sheet which has a small heat shrinkage factor and small variations thereof and is useful for thermoforming and a production process therefor.The sheet is made of a polycarbonate resin and has a thickness of 0.2 to 2.0 mm, a heat shrinkage factor in the extrusion direction (MD) of 2 to 8% when it is heated at 180° C. for 10 minutes and a standard deviation of heat shrinkage factor in the transverse direction (TD) of 1.5 or less.
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