Process for producing cellulose acylate film, cellulose acylate film, optically- compensatory film, polarizing plate and liquid-crystal display device

摘要

A process for producing a cellulose acylate film comprising: casting a solution of a cellulose acylate having an acyl substitution degree of from 2.85 to 3.00 dissolved in at least one organic solvent onto an endless metal support; cooling the solution at 0° C. to -50° C. to effect gelation, so as to form a film; peeling the film off from the endless metal support; and drying the film.