TWI441731B

• Main Authors: SUGIYAMA, NAOKI, FUKUSE, YOSUKE, SEKIGUCHI, MASAYUKI
• Format: Patent
• Language: Chinese
• Published: 21.06.2014
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; 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; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; 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; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

Disclosed is an optical film having antistatic properties, which is characterized in that a norbornene resin film (A) and an antistatic layer (B), which is made of an antistatic coating material containing a specific acrylic resin (b1) having a quaternary ammonium salt in a side chain and a curing agent (b2) composed of a polyethyleneimine and/or a polyhydroxyalkane polyglycidyl ether, are arranged in layers. Specifically disclosed is an optical film made of a norbornene resin, which film is excellent in characteristics such as adhesion, transparency, heat resistance and chemical resistance, while having excellent durability. This optical film maintains excellent antistatic properties over a long time. Also specifically disclosed are a method for producing the optical film, a polarizing plate using the optical film, and a liquid crystal display using the polarizing plate.