OPTICAL FILM AND RETARDATION FILM

摘要

PROBLEM TO BE SOLVED: To provide an optical film excellent in transparency, heat resistance and mechanical properties.

SOLUTION: The optical film includes a resin composition including 15-85 pts.mass of a first aromatic resin having a glass transition temperature of ≤120°C and including 55-70 mass% of an aromatic vinyl compound and 30-45 mass% of an unsaturated nitrile compound as monomer components, and 15-85 pts.mass of a second aromatic resin having a glass transition temperature of ≥122°C.

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