BIAXIALLY ORIENTED POLYESTER FILM AND PRODUCTION METHOD THEREOF
Disclosed is a biaxially oriented film made of (A) a polyester mainly composed of ethylene terephthalate and (B) a polyether imide and having a single glass transition temperature, a refractive index of 1.60 to 1.80 at least in either a machine direction or a transverse direction. The biaxially orie...
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