CELLULOSE ESTER FILM AND METHOD FOR PRODUCING THE SAME, POLARIZING PLATE, OPTICAL COMPENSATION FILM, ANTIREFLECTION FILM, AND LIQUID CRYSTAL DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a cellulose ester film having excellent ultraviolet-absorbing characteristics without being deteriorated even in a high-temperature melt production process, and also having excellent surface property. SOLUTION: The cellulose ester film having 20-300 μm thickness is f...

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1. Verfasser:	KURAKI YASUO
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 COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS 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 a cellulose ester film having excellent ultraviolet-absorbing characteristics without being deteriorated even in a high-temperature melt production process, and also having excellent surface property. SOLUTION: The cellulose ester film having 20-300 μm thickness is formed by: melting a mixture containing 100 pts.mass of the cellulose ester having a specified substitution degree, and 0.2-3 pts.mass of an ultraviolet absorbent represented by general formula (1) (wherein, R1and R2are each H, a halogen atom or an alkyl group; and R3to R6are each an alkyl group or an aryl group) and having ≥500 molecular weight at 180-240°C; and extruding the melted product from a die. COPYRIGHT: (C)2007,JPO&INPIT