Abstract: Hot melt and pressure-sensitive adhesives may comprise highly-plasticized cellulose esters, e.g., a cellulose ester and a plasticizer, the plasticizer included in an amount of about 30% to about 60% by weight of the cellulose ester. A highly-plasticized cellulose ester adhesive that is tacky at room temperature may be utilized by applying the adhesive to a first surface; and adhering a second surface to the first surface with the adhesive.

Abstract: Disclosed is an optical film, and more particularly, an optical film having excellent mechanical physical properties and low vapor permeability.

Abstract: To provide a cellulose acylate film having low moisture permeability and low haze, a polarizing plate, and a liquid crystal display device using the same.

Abstract: A cellulose acylate film containing at least one compound represented by the following Formula (I) or (II), and cellulose acylate, a polarizing plate using the same and a liquid crystal display device using the same, wherein in Formula (I), R1 represents an alkyl group; R2 and R3 each represent a hydrogen atom, an alkyl or an aryl group; R4 represents an alkyl group; Ar1 represents an aromatic group; m and n are integers; provided that when n is 1, Ar1 represents an aromatic group; and in Formula (II), R11 to R14 each represent a hydrogen atom, or an alkyl group; R11 and R12, and/or, R13 and R14 may form a ring; R15 and R17 each represent an alkyl group; and R16 and R18 each represent a hydrogen atom or alkyl group; Ar represents an arylene group; and l, m1 and n1 are integers.