| abstract |
Moisture permeability of 100 to 400 g / (m 2 · day) at 40 ° C. and 90% RH, and the change in moisture permeability after 1000 hours at 60 ° C. and 95% RH is -100 g / (m 2 · day) to 10 g A cellulose acylate film of / (m 2 · day) is provided. This film is an excellent optical compensation film.n n n Moisture vapor permeability, cellulose acylate film, optical compensation film, heat treatment |