CELLULOSE ACYLATE FILM, POLARIZER, AND LIQUID-CRYSTAL DISPLAY DEVICE

摘要

The present invention addresses the problems of: mitigating a trouble that a compound for inhibiting retardation from fluctuating with humidity changes is vaporized and diffused in the production line and bulkily deposits to form a cottony mass and thereby foul the wall surface or cause filter clogging; and providing a cellulose acylate film which combines continuous-production suitability with the stability of retardation to fluctuations in humidity. This cellulose acylate film is characterized by comprising a cellulose acylate, a nitrogenous heterocyclic compound having a molecular weight in the range of 100-800, and an organic ester having a melting point in the range of -60 to 120°C and having a 1-mass% loss temperature Td1, as determined by differential thermal analysis-thermogravimetry, in the range of 100 to 350°C.