| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thermoplastic resin film capable of being formed into a film having high optical characteristics by suppressing the occurrence of residual strain, and its manufacturing method. <P>SOLUTION: A molten resin is extruded into a sheetlike form from a die 24 to be supplied to the nip between a metal belt 26 and a cooling roll 28 and the sheetlike extrudate is cooled while held under pressure between the metal belt 26 and the cooling roll 28 to form a cellulose acylate film 12. <P>COPYRIGHT: (C)2007,JPO&INPIT |
