Patent ID: 8158220
Filing Date: 2012-04-17
Classification: C09K,G02B,G02F

Abstract:
1. A cellulose acylate film comprising a cellulose acylate resin having a degree of acyl substitution satisfying all the following formulae (i), (ii) and (iii) and a compound capable of forming a hydrogen bond satisfying all the following conditions (A), (B) and (C): (A) the compound has both a hydrogen bond donor moiety and a hydrogen bond acceptor moiety in the molecule, (B) the value obtained by dividing the molecular weight of the compound by the total of the number of the hydrogen bond donor moiety and the number of the hydrogen bond acceptor moiety is from 30 to 65, (C) the number of aromatic ring structures is from 1 to 3, where, in the formulae (i), (ii) and (iii), A means the degree of substitution with an acetyl group, and B means a total of the degree of substitution with a propionyl group and the degree of substitution with a butyryl group, wherein the compound capable of forming a hydrogen bond is represented by the following formula (E-1): wherein Y 1 represents a methine group or —N—; Ra 31 represents an alkyl group, an alkenyl group, an alkynyl group, a heterocyclic group or an aryl group; Rb 31 , Rc 31 , Rd 31 and Re 31 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a heterocyclic group or an aryl group; Q 21 represents a single bond, —O—, —S— or —NRf-; Rf represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a heterocyclic group or an aryl group, and may be taken together with Ra 31 to form a ring; X 31 , X 32 and X 33 each independently represent a single bond or a divalent linking group; and X 34 represents any one selected from the group of divalent linking groups of the following formula (Q): wherein the side * is the linking site to the N atom that bonds to the heterocyclic ring in the compound of the formula (E-1).