Heat-Resistant optical plastic laminated sheet and its producing method
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United States of America Patent
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Jul 11, 2000
Grant Date -
N/A
app pub date -
May 16, 1996
filing date -
Sep 30, 1994
priority date (Note) -
Expired
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Abstract
An optical plastic laminated sheet excellent in heat resistance and transparency is disclosed, which comprises a laminate of at one first layer of an optically transparent polymer and a second layer of an optically transparent polymer having a lower glass transition temperature than that of the first layer polymer. The laminated sheet possesses excellent impact strength and rigidity as well as excellent optical properties and is useful as a substance in the field of photoelectronics.
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