| 摘要 |
A dope (15) is prepared with using TAC as a polymer. The dope (15) is transferred with heated by a transferring device (30). A heating medium (36) is used to heat the dope in the transferring device (30). A passage (35) for the heating medium (36) is formed between a cylinder (31) and a jacket (34). The jacket (34) is attached to flanges (32), (33) so as to form a full jacket. When the heating medium (36) is fed in the full jacket, a temperature of the flanges (32), (33) becomes equal to a temperature of the cylinder (31). Accordingly, temperature profile of the dope (15) becomes small, because there is no low temperature portion in the transferring device (30). Therefore, gelatinous material, which is caused by association generated on the low temperature portion, is not in the dope (15). |
