| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical film with superior scratch resistance and which is improved in tearing strength and folding strength, a functional film using an optical film such as a substrate, and to provide a polarizing plate and an image display device provided with the functional film. SOLUTION: The optical film is formed of a polymer mainly composed of cellulose ester and containing polyrotaxane. COPYRIGHT: (C)2009,JPO&INPIT
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