| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for eco-friendlily producing cellulose ester film capable of ameliorating image unevennesses on a display screen occurring when incorporated in a liquid crystal display device and visibility variations with time. <P>SOLUTION: The method comprises the following process: A cellulose ester composition comprising a cellulose ester having a specific substitution degree, 0.01-3 mass%, based on the cellulose ester, of a phosphorous ester-based stabilizer 500 or higher in molecular weight and 0.001-1 mass%, based on the cellulose ester, of an epoxy-based stabilizer is melted at 180-240°C and extruded via a die to form the objective cellulose ester film 20-300μm in thickness. <P>COPYRIGHT: (C)2008,JPO&INPIT |
