Optical film, polarizing plate and production method

An optical film which is formed from a stretched resin and has Re(590), |Rth(590)|, |Re(400) - Re(800)| and |Rth(400) - Rth(800)| within specific ranges, while having a tensile modulus of elasticity of 1,500 MPa or more and a tear strength of 0.6 N/mm or more; a polarizing plate which is provided wi...

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Bibliographische Detailangaben
Hauptverfasser:	SHU, HIROAKI, TSUJINO, TOMA, INOUE, KYOSUKE, FUJINO, YASUHIDE, SUDEJI, HIRONARI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	An optical film which is formed from a stretched resin and has Re(590), \|Rth(590)\|, \|Re(400) - Re(800)\| and \|Rth(400) - Rth(800)\| within specific ranges, while having a tensile modulus of elasticity of 1,500 MPa or more and a tear strength of 0.6 N/mm or more; a polarizing plate which is provided with this optical film; and a method for producing this optical film. The resin preferably contains a polymer that has an aromatic vinyl compound hydride unit (a) and a diene compound hydride unit (b).