CELLULOSE COMPOSITION, CELLULOSE FILM, RETARDATION FILM, OPTICAL COMPENSATION FILM, ANTIREFLECTION FILM, POLARIZING PLATE AND IMAGE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a cellulose film less in variation of in-plane retardation (Re) and retardation in the thickness direction (Rth) by humidity variation, having a proper glass transition temperature (Tg) and capable of widely controlling the values of Re and Rth; and to provide a retardation film, optical compensation film, antireflection film, polarizing plate and image display device, using the cellulose film.;SOLUTION: A cellulose composition containing a cellulose having an aliphatic acyl group comprising a 5-30C branched structure, is used.;COPYRIGHT: (C)2009,JPO&INPIT