Cellulose ester film containing phosphoric ester plasticizer and aromatic carboxylic ester and process for preparation of the same

摘要

A cellulose ester film contains a phosphoric ester as a plasticizer. The film further contains an aromatic carboxylic ester represented by the formula (I). (* CHEMICAL STRUCTURE *) (I) in which n is 3, 4, 5 or 6; R is an alkyl group or an alkenyl group, each of which may have one or more substituent groups; the benzene ring may have one or more substituent groups other than the groups represented by -COOR; and the groups represented by -COOR may be different from each other. A process for preparation of the film is also disclosed.