Patent ID: 8174648
Filing Date: 2012-05-08
Classification: B29C,B29K,C08J,G02B,G02F

Abstract:
1. A cellulose acylate film comprising a cellulose acylate satisfying relations (I)-(III): where “A” represents a degree of acetyl substitution of hydroxy in a glucose unit of cellulose acylate; and “B” represents a degree of with C satisfying relations (IV)-(VI) where, in relations (IV) and (VI), Re(λ) indicates retardation (unit: nm) in-plane for an incident light having a wavelength of λnm at 25 degrees Celsius and 60% RH; and in relations (V) and (VI), Rth(λ) indicates retardation (unit: nm) along the thickness direction for an incident light having a wavelength of λnm at 25 degrees Celsius and at 60% RH.