| 摘要 |
A binder composition for polyester type films showing superior transparency, film hardness and solvent resistance as well as superior adhesion to polyester type films and an optical film using the composition are provided. The binder composition for polyester type films of the present invention contains a high-molecular weight polymethyl methacrylate (a), an acrylic polyol (b), an isocyanate type curing agent (c), and a polyester resin (d). The optical film of the present invention is an optical film including a polyester type film and a functional layer provided on the polyester type film, the functional layer containing a high-molecular weight polymethyl methacrylate (a), an acrylic polyol (b), an isocyanate type curing agent (c), and a polyester resin (d).
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