| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing an aromatic polysulfone resin sheet not generating a flaw such as whitening, foam, surface unevenness or the like and having excellent surface properties. SOLUTION: An aromatic polysulfone resin solution composition, which contains an aromatic polysulfone resin (A), a halogen hydrocarbon (B) and aliphatic lower alcohols (C) and is characterized in that the content of (A) is 10-50 wt.% and a weight ratio (C)/(B) of (B) and (C) is 0<(C)/(B)<0.2, is cast on a support and a solvent is evaporated from the cast film at a maximum evaporation speed in an initial stage of drying of 2.0 (mg/cm<2> /min) to manufacture the aromatic polysulfone resin sheet. |
