CELLULOSE ACYLATE FILM

摘要

PURPOSE: A cellulose acylate film is provided to ensure optical isotropy as an optical film and excellent tear strength even if film thickness is reduced. CONSTITUTION: A cellulose acylate film comprises one or more tear strength enhancers selected from compounds of chemical formula 1. In chemical formula 1, R is (C1~C5) alkyl; x is 5~25 weight%; x+y is 5~35 weight%; and z is 65 ~ 95 weight. The average molecular weight of the compound of the chemical formula 1 is 5,000~35,000. The tear strength enhancer is used in the amount of ~20 parts by weight based on 100.0 parts by weight of cellulose acylate.