Patent ID: 8017199
Filing Date: 2011-09-13
Classification: B29C,B29K,C08J,C08K,C09K,G02B,G02F

Abstract:
1. A cellulose acylate film comprising: a cellulose acylate; at least one first retardation raising agent in an amount of from 0.1 to 30 mass % based on the cellulose acylate; and at least one second retardation raising agent in an amount of from 0.1 to 30 mass % based on the cellulose acylate, wherein the at least one first retardation raising agent has a rod-like polarizability anisotropy represented by expression (1) of from 300×10 wherein αx is the largest constituent of characteristic values obtained after a polarizability tensor is made diagonal; αy is the constituent next to the largest constituent of characteristic values obtained after a polarizability tensor is made diagonal; and αz is the smallest constituent of characteristic values obtained after a polarizability tensor is made diagonal, wherein the at least one first retardation raising agent having a rod-like polarizability anisotropy represented by expression (1) of from 300×10 wherein Ar wherein R wherein R