THERMOPLASTIC RESIN COMPOSITION, OPTICAL FILM AND RETARDATION FILM
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United States of America Patent
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Issued Date -
Aug 20, 2009
app pub date -
Sep 22, 2005
filing date -
Oct 1, 2004
priority date (Note) -
Abandoned
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Abstract
Each of the thermoplastic resin composition and the optical film of the present invention comprises a cycloolefin-based polymer (A) and a vinyl-based polymer (B) having a structural unit derived from p-isopropenylphenol. The thermoplastic resin composition and the optical film exhibit excellent compatibility of their components with keeping property of low birefringence inherent in the thermoplastic resin composition comprising the cycloolefln-based polymer and the vinyl-based polymer, and they are excellent in weathering resistance and heat resistance.
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