METHOD FOR MANUFACTURING OPTICAL FILM AND OPTICAL FILM

PROBLEM TO BE SOLVED: To provide an optical film with a uniform film thickness and surface properties by suppressing the deformation of a plastic film due to a foreign object or a scar present on the back surface of the plastic film in a solution cast method using the plastic film as a support film....

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Bibliographische Detailangaben
Hauptverfasser:	MAKI HARUHIKO, NIKI HAYATO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an optical film with a uniform film thickness and surface properties by suppressing the deformation of a plastic film due to a foreign object or a scar present on the back surface of the plastic film in a solution cast method using the plastic film as a support film.SOLUTION: In a method for manufacturing the optical film in which a thermoplastic resin composition is filmed on the support film by the solution cast method, the optical film is achieved by the method for manufacturing the optical film using the support film where a resin composition is coated on the back surface of the support film and a relationship of relative roughness Ry measured based on JISB0601-1982 is that a cast surface is higher than a back surface.