| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a forming method of a cellulose acylate resin film capable of forming a highly qualified film with little discoloration and little evenness of a thickness. <P>SOLUTION: The forming method of the cellulose acylate resin film having a process of melting the non-molten cellulose acylate resin by an extruder and extruding the molten cellulose acylate resin through a die 26 keeps the resin melted and extruded using a tandem extruder comprising a 1st step extruder 22 and the 2nd step extruder 24 both being connected to each other in series. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
